RGSQH-A9W_IM_4PEN374245-1A

RGSQH-A9W_IM_4PEN374245-1A
Installer reference guide
ROTEX HPU ground
RGSQH10S18AA9W
Installer reference guide
ROTEX HPU ground
English
Table of Contents
6.4.3
Table of Contents
6.4.4
1 General safety precautions
1.1
1.2
About the documentation ..........................................................
1.1.1
Meaning of warnings and symbols..............................
For the installer..........................................................................
1.2.1
General .......................................................................
1.2.2
Installation site ............................................................
1.2.3
Refrigerant ..................................................................
1.2.4
Brine............................................................................
1.2.5
Water ..........................................................................
1.2.6
Electrical .....................................................................
2 About the documentation
2.1
2.2
About this document..................................................................
Installer reference guide at a glance .........................................
3 About the box
3.1
3.2
Overview: About the box ...........................................................
Indoor unit .................................................................................
3.2.1
To unpack the indoor unit ...........................................
3.2.2
To remove the accessories from the indoor unit.........
4 About the units and options
4.1
4.2
4.3
Overview: About the units and options......................................
Identification ..............................................................................
4.2.1
Identification label: Indoor unit ....................................
Possible options for the indoor unit ...........................................
5 Application guidelines
5.1
5.2
5.3
5.4
5.5
5.6
5.7
Overview: Application guidelines...............................................
Setting up the space heating system ........................................
5.2.1
Single room.................................................................
5.2.2
Multiple rooms – One LWT zone ................................
5.2.3
Multiple rooms – Two LWT zones...............................
Setting up an auxiliary heat source for space heating...............
Setting up the domestic hot water tank .....................................
5.4.1
System layout – Integrated DHW tank........................
5.4.2
Selecting the desired temperature for the DHW tank .
5.4.3
Setup and configuration – DHW tank..........................
5.4.4
DHW pump for instant hot water.................................
5.4.5
DHW pump for disinfection .........................................
Setting up the energy metering .................................................
5.5.1
Produced heat.............................................................
5.5.2
Consumed energy.......................................................
5.5.3
Normal kWh rate power supply...................................
5.5.4
Preferential kWh rate power supply ............................
Setting up the power consumption control ................................
5.6.1
Permanent power limitation ........................................
5.6.2
Power limitation activated by digital inputs .................
5.6.3
Power limitation process .............................................
Setting up an external temperature sensor ...............................
6 Preparation
6.1
6.2
6.3
6.4
Overview: Preparation...............................................................
Preparing installation site ..........................................................
6.2.1
Installation site requirements of the indoor unit ..........
Preparing piping ........................................................................
6.3.1
Circuit requirements....................................................
6.3.2
Formula to calculate the expansion vessel prepressure ......................................................................
6.3.3
To check the water volume and flow rate of the
space heating circuit and brine circuit.........................
6.3.4
Changing the pre-pressure of the expansion vessel...
6.3.5
To check the water volume: Examples .......................
Preparing electrical wiring .........................................................
6.4.1
About preparing electrical wiring.................................
6.4.2
About preferential kWh rate power supply ..................
Installer reference guide
2
3
3
3
3
3
4
4
5
5
5
6
7 Installation
7.1
7.2
7.3
7.4
6
6
6
6
7
7
7
7.5
7
7
7
7
7
8
8
8
9
10
12
13
14
14
14
15
15
15
15
16
16
16
16
16
16
17
17
17
7.6
7.7
23
Overview: Installation .................................................................
Opening the units .......................................................................
7.2.1
About opening the units ...............................................
7.2.2
To open the indoor unit ................................................
7.2.3
To open the switch box cover of the indoor unit ..........
Mounting the indoor unit.............................................................
7.3.1
About mounting the indoor unit ....................................
7.3.2
Precautions when mounting the indoor unit.................
7.3.3
To install the indoor unit...............................................
Connecting the brine piping........................................................
7.4.1
About connecting the brine piping................................
7.4.2
Precautions when connecting the brine piping ............
7.4.3
To connect the brine piping..........................................
7.4.4
To fill the brine circuit ...................................................
7.4.5
To connect the pressure relief valve to the drain on
the brine side ...............................................................
7.4.6
To insulate the brine piping..........................................
Connecting the water piping.......................................................
7.5.1
About connecting the water piping...............................
7.5.2
Precautions when connecting the water piping............
7.5.3
To connect the water piping.........................................
7.5.4
To connect the recirculation piping ..............................
7.5.5
To connect the pressure relief valve to the drain .........
7.5.6
To connect the drain hose ...........................................
7.5.7
To fill the space heating circuit.....................................
7.5.8
To fill the domestic hot water tank ...............................
7.5.9
To insulate the water piping .........................................
Connecting the electrical wiring..................................................
7.6.1
About connecting the electrical wiring..........................
7.6.2
About electrical compliance .........................................
7.6.3
Precautions when connecting the electrical wiring ......
7.6.4
Guidelines when connecting the electrical wiring ........
7.6.5
To connect the electrical wiring on the indoor unit.......
7.6.6
To connect the main power supply ..............................
7.6.7
To connect the remote outdoor sensor ........................
7.6.8
To connect the user interface ......................................
7.6.9
To connect the shut-off valve.......................................
7.6.10 To connect the electrical meters ..................................
7.6.11 To connect the domestic hot water pump ....................
7.6.12 To connect the alarm output ........................................
7.6.13 To connect the space heating ON/OFF output ............
7.6.14 To connect the changeover to external heat source....
7.6.15 To connect the power consumption digital inputs ........
Finishing the indoor unit installation ...........................................
7.7.1
To fix the user interface cover to the indoor unit..........
7.7.2
To close the indoor unit................................................
8 Configuration
8.1
18
18
18
18
18
18
20
8.2
20
21
21
21
21
22
Overview of electrical connections except external
actuators ...................................................................... 22
Overview of electrical connections for external and
internal actuators ......................................................... 22
23
23
23
23
23
23
23
24
24
25
25
25
25
25
26
26
26
26
26
26
27
27
27
27
28
28
28
28
28
28
28
29
30
30
31
31
32
32
32
32
33
33
33
33
33
33
Overview: Configuration .............................................................
8.1.1
To connect the PC cable to the switch box..................
8.1.2
To access the most used commands ..........................
8.1.3
To copy the system settings from the first to the
second user interface...................................................
8.1.4
To copy the language set from the first to the second
user interface ...............................................................
8.1.5
Quick wizard: Set the system layout after first power
ON................................................................................
Basic configuration .....................................................................
8.2.1
Quick wizard: Language / time and date......................
8.2.2
Quick wizard: Standard................................................
8.2.3
Quick wizard: Options ..................................................
8.2.4
Quick wizard: Capacities (energy metering) ................
8.2.5
Space heating control ..................................................
8.2.6
Domestic hot water control ..........................................
8.2.7
Contact/helpdesk number ............................................
33
34
34
35
35
35
36
36
36
38
39
39
42
43
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
1 General safety precautions
8.3
8.4
8.5
Advanced configuration/optimization.........................................
8.3.1
Space heating operation: advanced ...........................
8.3.2
Domestic hot water control: advanced........................
8.3.3
Heat source settings ...................................................
8.3.4
System settings...........................................................
Menu structure: Overview user settings ....................................
Menu structure: Overview installer settings...............................
9 Commissioning
9.1
9.2
9.3
9.4
Overview: Commissioning.........................................................
Precautions when commissioning .............................................
Checklist before commissioning................................................
Checklist during commissioning ................................................
9.4.1
To check the minimum flow rate .................................
9.4.2
Air purge function on the space heating circuit ...........
9.4.3
Air purge function on the brine circuit .........................
9.4.4
To perform a test run ..................................................
9.4.5
To perform an actuator test run ..................................
9.4.6
Underfloor heating screed dryout................................
10 Hand-over to the user
10.1
Overview: Maintenance and service .........................................
Maintenance safety precautions................................................
Checklist for yearly maintenance of the indoor unit...................
To drain the domestic hot water tank ........................................
12 Troubleshooting
12.1
12.2
12.3
12.4
55
55
55
55
55
55
55
56
57
58
58
14.6
▪ The original documentation is written in English. All other
languages are translations.
▪ The precautions described in this document cover very important
topics, follow them carefully.
▪ The installation of the system, and all activities described in the
installation manual and the installer reference guide must be
performed by an authorized installer.
1.1.1
Overview: Troubleshooting........................................................
Precautions when troubleshooting ............................................
Solving problems based on symptoms......................................
12.3.1 Symptom: The unit is NOT heating as expected ........
12.3.2 Symptom: The compressor does NOT start (space
heating or domestic water heating).............................
12.3.3 Symptom: The pump is making noise (cavitation) ......
12.3.4 Symptom: The pressure relief valve opens.................
12.3.5 Symptom: The pressure relief valve leaks ..................
12.3.6 Symptom: The space is NOT sufficiently heated at
low outdoor temperatures ...........................................
12.3.7 Symptom: The pressure at the tapping point is
temporarily unusual high.............................................
12.3.8 Symptom: Decoration panels are pushed away due
to a swollen tank .........................................................
12.3.9 Symptom: Tank disinfection function is NOT
completed correctly (AH-error)....................................
Solving problems based on error codes....................................
12.4.1 Error codes: Overview ................................................
Overview: Technical data ..........................................................
Dimensions and service space..................................................
14.2.1 Dimensions and service space: Indoor unit ................
Components ..............................................................................
14.3.1 Components: Switch box (indoor unit) ........................
Piping diagram ..........................................................................
14.4.1 Piping diagram: Indoor unit .........................................
Wiring diagram ..........................................................................
14.5.1 Wiring diagram: Indoor unit.........................................
ESP curve .................................................................................
14.6.1 ESP curve: Indoor unit ................................................
Meaning of warnings and symbols
DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
DANGER: RISK OF BURNING
Indicates a situation that could result in burning because of
extreme hot or cold temperatures.
61
Indicates a situation that could result in death or serious
injury.
WARNING
61
61
62
62
CAUTION
Indicates a situation that could result in minor or moderate
injury.
62
62
62
63
NOTICE
Indicates a situation that could result in equipment or
property damage.
INFORMATION
63
Indicates useful tips or additional information.
63
63
1.2
For the installer
63
63
64
1.2.1
General
66
14.5
About the documentation
60
60
60
61
14 Technical data
14.4
1.1
60
65
14.3
General safety precautions
59
13 Disposal
14.1
14.2
1
To fix the applicable language on the unit name plate .............. 59
11 Maintenance and service
11.1
11.2
11.3
11.4
43
43
46
49
50
53
54
66
66
66
69
69
70
70
71
71
79
79
If you are not sure how to install or operate the unit, contact your
dealer.
NOTICE
Improper installation or attachment of equipment or
accessories could result in electric shock, short-circuit,
leaks, fire or other damage to the equipment. Only use
accessories, optional equipment and spare parts made or
approved by ROTEX.
WARNING
Make sure installation, testing and applied materials
comply with applicable legislation (on top of the
instructions described in the ROTEX documentation).
CAUTION
15 Glossary
80
16 Field settings table
81
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Wear adequate personal protective equipment (protective
gloves, safety glasses,…) when installing, maintaining or
servicing the system.
Installer reference guide
3
1 General safety precautions
WARNING
NOTICE
Tear apart and throw away plastic packaging bags so that
nobody, especially children, can play with them. Possible
risk: suffocation.
Make sure refrigerant piping installation complies with
applicable legislation. In Europe, EN378 is the applicable
standard.
DANGER: RISK OF BURNING
NOTICE
▪ Do NOT touch the refrigerant piping, water piping or
internal parts during and immediately after operation. It
could be too hot or too cold. Give it time to return to
normal temperature. If you must touch it, wear
protective gloves.
▪ Do NOT touch any accidental leaking refrigerant.
Make sure the field piping and connections are not
subjected to stress.
WARNING
During tests, NEVER pressurize the product with a
pressure higher than the maximum allowable pressure (as
indicated on the nameplate of the unit).
WARNING
Provide adequate measures to prevent that the unit can be
used as a shelter by small animals. Small animals that
make contact with electrical parts can cause malfunctions,
smoke or fire.
NOTICE
▪ Do NOT place any objects or equipment on top of the
unit.
WARNING
Take sufficient precautions in case of refrigerant leakage. If
refrigerant gas leaks, ventilate the area immediately.
Possible risks:
▪ Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.
▪ Toxic gas may be produced if refrigerant gas comes
into contact with fire.
▪ Do NOT sit, climb or stand on the unit.
In accordance with the applicable legislation, it might be necessary
to provide a logbook with the product containing at least: information
on maintenance, repair work, results of tests, stand-by periods,…
Also, at least, following information must be provided at an
accessible place at the product:
▪ Instructions for shutting down the system in case of an emergency
▪ Name and address of fire department, police and hospital
▪ Name, address and day and night telephone numbers for
obtaining service
WARNING
Always recover the refrigerant. Do NOT release them
directly into the environment. Use a vacuum pump to
evacuate the installation.
NOTICE
After all the piping has been connected, make sure there is
no gas leak. Use nitrogen to perform a gas leak detection.
NOTICE
In Europe, EN378 provides the necessary guidance for this logbook.
▪ To avoid compressor breakdown, do NOT charge more
than the specified amount of refrigerant.
1.2.2
▪ When the refrigerant system is to be opened,
refrigerant must be treated according to the applicable
legislation.
Installation site
▪ Provide sufficient space around the unit for servicing and air
circulation.
▪ Make sure the installation site withstands the unit's weight and
vibration.
▪ Make sure the area is well ventilated.
WARNING
Make sure there is no oxygen in the system. Refrigerant
may only be charged after performing the leak test and the
vacuum drying.
▪ Make sure the unit is level.
▪ In case re-charge is required, refer to the nameplate of the unit. It
states the type of refrigerant and necessary amount.
Do NOT install the unit in the following places:
▪ The unit is factory charged with refrigerant and depending on pipe
sizes and pipe lengths some systems require additional charging
of refrigerant.
▪ In potentially explosive atmospheres.
▪ In places where there is machinery that emits electromagnetic
waves. Electromagnetic waves may disturb the control system,
and cause malfunction of the equipment.
▪ In places where there is a risk of fire due to the leakage of
flammable gases (example: thinner or gasoline), carbon fibre,
ignitable dust.
▪ In places where corrosive gas (example: sulphurous acid gas) is
produced. Corrosion of copper pipes or soldered parts may cause
the refrigerant to leak.
1.2.3
▪ Only use tools exclusively for the refrigerant type used in the
system, this to ensure pressure resistance and prevent foreign
materials from entering into the system.
▪ Charge the liquid refrigerant as follows:
If
A siphon tube is present
Then
Charge with the cylinder upright.
(i.e., the cylinder is marked with
"Liquid filling siphon attached")
Refrigerant
If applicable. See the installation manual or installer reference guide
of your application for more information.
Installer reference guide
4
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
1 General safety precautions
If
A siphon tube is NOT present
Then
Charge with the cylinder upside
down.
1.2.6
Electrical
DANGER: RISK OF ELECTROCUTION
▪ Turn OFF all power supply before removing the
switch box cover, connecting electrical wiring or
touching electrical parts.
▪ Open refrigerant cylinders slowly.
▪ Charge the refrigerant in liquid form. Adding it in gas form may
prevent normal operation.
1.2.4
CAUTION
▪ Do NOT touch electrical components with wet hands.
When the refrigerant charging procedure is done or when
pausing, close the valve of the refrigerant tank
immediately. If the valve is not closed immediately,
remaining pressure might charge additional refrigerant.
Possible consequence: Incorrect refrigerant amount.
▪ Do NOT leave the unit unattended when the service
cover is removed.
Brine
If applicable. See the installation manual or installer reference guide
of your application for more information.
WARNING
If NOT factory installed, a main switch or other means for
disconnection, having a contact separation in all poles
providing full disconnection under overvoltage category III
condition, shall be installed in the fixed wiring.
WARNING
WARNING
▪ ONLY use copper wires.
The selection of the brine MUST be in accordance with the
applicable legislation.
▪ Make sure the field wiring complies with the applicable
legislation.
WARNING
▪ All field wiring must be performed in accordance with
the wiring diagram supplied with the product.
Take sufficient precautions in case of brine leakage. If
brine leaks, ventilate the area immediately and contact
your local dealer.
WARNING
The ambient temperature inside the unit can get much
higher than that of the room, e.g. 70°C. In case of a brine
leak, hot parts inside the unit can create a hazardous
situation.
WARNING
The use and installation of the application MUST comply
with the safety and environmental precautions specified in
the applicable legislation.
1.2.5
▪ Disconnect the power supply for more than 1 minute,
and measure the voltage at the terminals of main circuit
capacitors or electrical components before servicing.
The voltage MUST be less than 50 V DC before you
can touch electrical components. For the location of the
terminals, see the wiring diagram.
Water
If applicable. See the installation manual or installer reference guide
of your application for more information.
▪ NEVER squeeze bundled cables and make sure they
do not come in contact with the piping and sharp
edges. Make sure no external pressure is applied to the
terminal connections.
▪ Make sure to install earth wiring. Do NOT earth the unit
to a utility pipe, surge absorber, or telephone earth.
Incomplete earth may cause electrical shock.
▪ Make sure to use a dedicated power circuit. NEVER
use a power supply shared by another appliance.
▪ Make sure to install the required fuses or circuit
breakers.
▪ Make sure to install an earth leakage protector. Failure
to do so may cause electric shock or fire.
▪ When installing the earth leakage protector, make sure
it is compatible with the inverter (resistant to high
frequency electric noise) to avoid unnecessary opening
of the earth leakage protector.
NOTICE
Make sure water quality complies with EU directive
98/83 EC.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
5
2 About the documentation
NOTICE
▪ Addendum book for optional equipment:
▪ Additional info about how to install optional equipment
Precautions when laying power wiring:
▪ Do not connect wiring of different thicknesses to the
power terminal block (slack in the power wiring may
cause abnormal heat).
▪ When connecting wiring which is the same thickness,
do as shown in the figure below.
▪ Format: Paper (in the box of the indoor unit) + Digital files on
the ROTEX homepage
Latest revisions of the supplied documentation may be available on
the regional ROTEX website or via your dealer.
The original documentation is written in English. All other languages
are translations.
2.2
▪ For wiring, use the designated power wire and connect
firmly, then secure to prevent outside pressure being
exerted on the terminal board.
Installer reference guide at a
glance
Chapter
Description
General safety
precautions
Safety instructions that you must read
before installing
About the documentation
What documentation exists for the
installer
About the box
How to unpack the units and remove
their accessories
About the units and
options
▪ How to identify the units
Application guidelines
Various installation setups of the system
Preparation
What to do and know before going
on‑site
Installation
What to do and know to install the
system
Configuration
What to do and know to configure the
system after it is installed
NOTICE
Commissioning
Only applicable if the power supply is three‑phase, and the
compressor has an ON/OFF starting method.
What to do and know to commission the
system after it is configured
Hand‑over to the user
What to give and explain to the user
Maintenance and service
How to maintain and service the units
Troubleshooting
What to do in case of problems
Disposal
How to dispose of the system
Technical data
Specifications of the system
Glossary
Definition of terms
Field settings table
Table to be filled in by the installer, and
kept for future reference
▪ Use an appropriate screwdriver for tightening the
terminal screws. A screwdriver with a small head will
damage the head and make proper tightening
impossible.
▪ Over-tightening the terminal screws may break them.
Install power cables at least 1 metre away from televisions or radios
to prevent interference. Depending on the radio waves, a distance of
1 metre may not be sufficient.
WARNING
▪ After finishing the electrical work, confirm that each
electrical component and terminal inside the electrical
components box is connected securely.
▪ Make sure all covers are closed before starting up the
unit.
If there exists the possibility of reversed phase after a
momentary black out and the power goes on and off while
the product is operating, attach a reversed phase
protection circuit locally. Running the product in reversed
phase can break the compressor and other parts.
2
About the documentation
2.1
About this document
▪ Possible combinations of units and
options
Note: There is also an installer settings
table in the user reference guide. This
table has to be filled in by the installer
and handed over to the user.
Target audience
Authorised installers
Documentation set
This document is part of a documentation set. The complete set
consists of:
3
About the box
3.1
Overview: About the box
▪ General safety precautions:
▪ Safety instructions that you must read before installing
This chapter describes what you have to do after the box with the
indoor unit is delivered on-site.
▪ Format: Paper (in the box of the indoor unit)
It contains information about:
▪ Indoor unit installation manual:
▪ Removing the accessories from the units
▪ Format: Paper (in the box of the indoor unit)
Keep the following in mind:
▪ Installer reference guide:
▪ Preparation of the installation, technical specifications, good
practices, reference data,…
▪ Format: Digital files on the ROTEX homepage
Installer reference guide
6
▪ Unpacking and handling the units
▪ Installation instructions
▪ At delivery, the unit must be checked for damage. Any damage
must be reported immediately to the carrier's claims agent.
▪ Bring the packed unit as close as possible to its final installation
position to prevent damage during transport.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
4 About the units and options
3.2
Indoor unit
4
About the units and options
3.2.1
To unpack the indoor unit
4.1
Overview: About the units and
options
This chapter contains information about:
▪ Identifying the indoor unit
▪ Combining the indoor unit with options
4.2
Identification
NOTICE
When installing or servicing several units at the same time,
make sure NOT to switch the service panels between
different models.
4.2.1
Identification label: Indoor unit
Location
3.2.2
To remove the accessories from the
indoor unit
1
Remove the screws at the top of the unit.
2
Remove the top panel.
4×
Model identification
Example: R GS Q H 10 S 18 AA 9W
Code
3
Remove the accessories.
b
a
1×
1×
e
f
1×
1×
c
1×
g
1×
d
1×
h
1×
ROTEX model
GS
Ground source heat pump
Q
Refrigerant R410A
H
Heating only
10
Capacity class
S
Integrated tank material: Stainless steel
18
Integrated tank volume
AA
Model series
9W
Backup heater model
4.3
a
b
c
d
e
f
g
h
4
General safety precautions
Addendum book for optional equipment
Installation manual
Operation manual
Remote outdoor sensor
User interface kit cover
Multilingual fluorinated greenhouse gases label
Cable for brine pressure switch connection
Reinstall the top panel.
Description
R
Possible options for the indoor
unit
User interface (RKRUCBL*)
The user interface and a possible additional user interface are
available as an option.
The additional user interface can be connected:
▪ To have both:
▪ control close to the indoor unit,
▪ room thermostat functionality in the principal space to be
heated.
▪ To have an interface containing other languages.
Following user interfaces are available:
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
7
5 Application guidelines
▪ RKRUCBL1 contains following languages: German, French,
Dutch, Italian.
The software and corresponding operating instructions are available
on the ROTEX homepage.
▪ RKRUCBL2 contains following languages: English, Swedish,
Norwegian, Finnish.
For installation instructions, see the installation manual of the PC
cable and "8 Configuration" on page 33.
▪ RKRUCBL3 contains following languages: English, Spanish,
Greek, Portuguese.
Heat pump convector (RFWXV)
▪ RKRUCBL4 contains following languages: English, Turkish,
Polish, Romanian.
▪ RKRUCBL5 contains following languages: German, Czech,
Slovenian, Slovakian.
▪ RKRUCBL6 contains following languages: English, Croatian,
Hungarian, Estonian.
For providing space heating/cooling, it is possible to use heat pump
convectors (RFWXV).
For installation instructions, refer to the installation manual of the
heat pump convectors, and the addendum book for optional
equipment.
Brine filling kit (KGSFILL)
Brine filling valve kit for flushing, filling, and draining the brine circuit.
▪ RKRUCBL7 contains following languages: English, German,
Russian, Danish.
Languages on the user interface can be uploaded by PC software or
copied from an user interface to the other.
5
Application guidelines
For installation instructions, see "7.6.8 To connect the user
interface" on page 31.
5.1
Overview: Application guidelines
Room thermostat (RKRTWA, RKRTR1)
You can connect an optional room thermostat to the indoor unit. This
thermostat can either be wired (RKRTWA) or wireless (RKRTR1).
The purpose of the application guidelines is to give a glance of the
possibilities of the ROTEX heat pump system.
NOTICE
For installation instructions, see the installation manual of the room
thermostat and addendum book for optional equipment.
▪ The illustrations in the application guidelines are meant
for reference only, and are NOT to be used as detailed
hydraulic
diagrams.
The
detailed
hydraulic
dimensioning and balancing are NOT shown, and are
the responsibility of the installer.
Remote sensor for wireless thermostat (EKRTETS)
You can use a wireless indoor temperature sensor (EKRTETS) only
in combination with the wireless thermostat (RKRTR1).
▪ For more information about the configuration settings to
optimize heat pump operation, see "8 Configuration" on
page 33.
For installation intructions, see the installation manual of the room
thermostat and addendum book for optional equipment.
Digital I/O PCB (EKRP1HB)
INFORMATION
The digital I/O PCB is required to provide following signals:
Energy metering functionality is NOT applicable and/or
NOT valid for this unit if it is calculated by the unit. If
optional external meters are used, energy metering display
is valid.
▪ Alarm output
▪ Space heating On/OFF output
▪ Changeover to external heat source
For installation instructions, see the installation manual of the digital
I/O PCB and addendum book for optional equipment.
This chapter contains application guidelines for:
Demand PCB (EKRP1AHTA)
▪ Setting up an auxiliary heat source for space heating
To enable the power saving consumption control by digital inputs
you must install the demand PCB.
▪ Setting up the domestic hot water tank
For installation instructions, see the installation manual of the
demand PCB and addendum book for optional equipment.
Remote indoor sensor (KRCS01-1)
By default the internal user interface sensor will be used as room
temperature sensor.
As an option the remote indoor sensor can be installed to measure
the room temperature on another location.
For installation instructions, see the installation manual of the remote
indoor sensor and addendum book for optional equipment.
INFORMATION
The remote indoor sensor can only be used in case the
user interface is configured with room thermostat
functionality.
PC configurator (EKPCCAB)
The PC cable makes a connection between the switch box of the
indoor unit and a PC. It gives the possibility to upload different
language files to the user interface and indoor parameters to the
indoor unit. For the available language files, contact your local
dealer.
Installer reference guide
8
▪ Setting up the space heating system
▪ Setting up the energy metering
▪ Setting up the power consumption
▪ Setting up an external temperature sensor
5.2
Setting up the space heating
system
The ROTEX heat pump system supplies leaving water to heat
emitters in one or more rooms.
Because the system offers a wide flexibility to control the
temperature in each room, you need to answer the following
questions first:
▪ How many rooms are heated by the ROTEX heat pump system?
▪ Which heat emitter types are used in each room and what is their
design leaving water temperature?
Once the space heating requirements are
recommends to follow the setup guidelines below.
clear,
ROTEX
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
5 Application guidelines
NOTICE
If an external room thermostat is used, the external room
thermostat will control the room frost protection. However,
the room frost protection is only possible if the leaving
water temperature control on the unit's user interface is
turned ON.
▪ Stable room temperature matching the desired temperature
(higher comfort)
▪ Less ON/OFF cycles (more quiet, higher comfort and higher
efficiency)
INFORMATION
In case an external room thermostat is used and room frost
protection needs to be guaranteed in all conditions, then
you have to set auto emergency [A.5.1.2] to 1.
5.2.1
▪ Highest comfort and efficiency. The smart room thermostat
functionality can decrease or increase the desired leaving water
temperature based on the actual room temperature (modulation).
This results in:
▪ Lowest possible leaving water temperature (higher efficiency)
▪ Easy. You can easily set the desired room temperature via the
user interface:
▪ For your daily needs, you can use preset values and schedules.
Single room
Under floor heating or radiators – Wired room
thermostat
▪ To deviate from your daily needs, you can temporarily overrule
the preset values and schedules, use the holiday mode…
Under floor heating or radiators – Wireless room
thermostat
Setup
A
B
Setup
A
B
a
b
a
A
B
a
Main leaving water temperature zone
One single room
User interface used as room thermostat
▪ The under floor heating or radiators are directly connected to the
indoor unit.
A
B
a
b
▪ The room temperature is controlled by the user interface, which is
used as room thermostat. Possible installations:
▪ User interface (standard equipment) installed in the room and
used as room thermostat
▪ User interface (standard equipment) installed at the indoor unit
and used for control close to the indoor unit + user interface
(optional equipment RKRUCBL*) installed in the room and used
as room thermostat
Configuration
Setting
Unit temperature control:
▪ #: [A.2.1.7]
▪ The under floor heating or radiators are directly connected to the
indoor unit.
▪ The room temperature is controlled by the wireless external room
thermostat (optional equipment RKRTR1).
Configuration
Setting
Unit temperature control:
Value
▪ #: [A.2.1.7]
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
▪ Code: [C-07]
0 (1 LWT zone): Main
▪ #: [A.2.1.8]
▪ Code: [C-07]
Number of water temperature
zones:
Main leaving water temperature zone
One single room
Receiver for wireless external room thermostat
Wireless external room thermostat
▪ #: [A.2.1.8]
▪ Code: [7-02]
Benefits
▪ Cost effective. You do NOT need an additional external room
thermostat.
Number of water temperature
zones:
Value
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
0 (1 LWT zone): Main
▪ Code: [7-02]
External room thermostat for the 1 (Thermo ON/OFF): When the
main zone:
used external room thermostat or
heat pump convector can only
▪ #: [A.2.2.4]
send a thermo ON/OFF
▪ Code: [C-05]
condition.
Benefits
▪ Wireless. The ROTEX external room thermostat is available in a
wireless version.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
9
5 Application guidelines
▪ Efficiency. Although the external room thermostat only sends ON/
OFF signals, it is specifically designed for the heat pump system.
Example: If the heat pump system is used to heat up one floor
where all the rooms have the same heat emitters.
Heat pump convectors
Under floor heating or radiators – Thermostatic
valves
Setup
If you are heating up rooms with under floor heating or radiators, a
very common way is to control the temperature of the main room by
using a thermostat (this can either be the user interface or an
external room thermostat), while the other rooms are controlled by
so-called thermostatic valves, which open or close depending on the
room temperature.
A
B
Setup
A
B
a
C
T
a
A
B
a
Main leaving water temperature zone
One single room
Remote controller of the heat pump convectors
▪ The under floor heating or radiators are directly connected to the
indoor unit.
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
A
B
C
a
▪ The space heating demand signal is sent to one digital input on
the indoor unit (X2M/1 and X2M/4).
INFORMATION
When using multiple heat pump convectors, make sure
each one receives the infrared signal from the remote
controller of the heat pump convectors.
Configuration
Setting
Unit temperature control:
▪ #: [A.2.1.7]
Value
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
▪ Code: [C-07]
Number of water temperature
zones:
0 (1 LWT zone): Main
▪ The under floor heating of the main room is directly connected to
the indoor unit.
▪ The room temperature of the main room is controlled by the user
interface used as thermostat.
▪ A thermostatic valve is installed before the under floor heating in
each of the other rooms.
INFORMATION
Mind situations where the main room can be heated by
another heating source. Example: Fireplaces.
Configuration
Setting
▪ #: [A.2.1.8]
▪ Code: [7-02]
External room thermostat for the 1 (Thermo ON/OFF): When the
main zone:
used external room thermostat or
heat pump convector can only
▪ #: [A.2.2.4]
send a thermo ON/OFF
▪ Code: [C-05]
condition.
Benefits
Main leaving water temperature zone
Room 1
Room 2
User interface
Unit temperature control:
▪ #: [A.2.1.7]
Value
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
▪ Code: [C-07]
Number of water temperature
zones:
0 (1 LWT zone): Main
▪ #: [A.2.1.8]
▪ Code: [7-02]
▪ Efficiency. Optimal energy efficiency because of the interlink
function.
Benefits
▪ Stylish.
▪ Cost effective.
5.2.2
▪ Easy. Same installation as for one room, but with thermostatic
valves.
Multiple rooms – One LWT zone
If only one leaving water temperature zone is needed because the
design leaving water temperature of all heat emitters is the same,
you do NOT need a mixing valve station (cost effective).
Installer reference guide
10
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
5 Application guidelines
Under floor heating or radiators – Multiple external
room thermostats
A
B
C
Setup
A
B
C
M1
a
M2
a
a
b
a
A
B
C
a
Main leaving water temperature zone
Room 1
Room 2
Remote controller of the heat pump convectors
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
A
B
C
a
b
Main leaving water temperature zone
Room 1
Room 2
External room thermostat
Bypass valve
▪ The heating demand signals of each heat pump convector are
connected in parallel to the digital input on the indoor unit (X2M/1
and X2M/4). The indoor unit will only supply leaving water
temperature when there is an actual demand.
▪ For each room, a shut-off valve (field supplied) is installed to avoid
leaving water supply when there is no heating demand.
▪ A bypass valve must be installed to make water recirculation
possible when all shut-off valves are closed.To guarantee reliable
operation, provide a minimum water flow rate as described in
"6.3.3 To check the water volume and flow rate of the space
heating circuit and brine circuit" on page 20.
▪ The room thermostats are connected to the shut-off valves, but do
NOT have to be connected to the indoor unit. The indoor unit will
supply leaving water all the time, with the possibility to program a
leaving water schedule.
Configuration
Setting
Unit temperature control:
▪ #: [A.2.1.7]
Value
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
▪ Code: [C-07]
Number of water temperature
zones:
INFORMATION
To increase comfort and performance, ROTEX
recommends to install the valve kit option EKVKHPC on
each heat pump convector.
Configuration
Setting
Unit temperature control:
▪ #: [A.2.1.7]
Value
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
▪ Code: [C-07]
Number of water temperature
zones:
0 (1 LWT zone): Main
▪ #: [A.2.1.8]
▪ Code: [7-02]
Benefits
0 (1 LWT zone): Main
▪ #: [A.2.1.8]
▪ Code: [7-02]
Benefits
Compared with under floor heating or radiators for one room:
▪ Comfort. You can set the desired room temperature, including
schedules, for each room via the room thermostats.
Compared with heat pump convectors for one room:
▪ Comfort. You can set the desired room temperature, including
schedules, for each room via the remote controller of the
heat pump convectors.
Combination: Under floor heating + Heat pump
convectors
Setup
Heat pump convectors
Setup
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
11
5 Application guidelines
Room (zone)
A
B
C
Heat emitters: Design
temperature
Living room (main zone)
Under floor heating: 35°C
Bed rooms (additional zone)
Heat pump convectors: 45°C
Setup
M1
b
a
A
B
C
a
A
B
C
a
b
Main leaving water temperature zone
Room 1
Room 2
External room thermostat
Remote controller of the heat pump convectors
d
c
a
D
E
▪ For each room with heat pump convectors: The heat pump
convectors are directly connected to the indoor unit.
b
▪ For each room with under floor heating: A shut-off valve (field
supply) is installed before the under floor heating. It prevents hot
water supply when the room has no heating demand.
▪ For each room with heat pump convectors: The desired room
temperature is set via the remote controller of the heat pump
convectors.
▪ For each room with under floor heating: The desired room
temperature is set via the external room thermostat (wired or
wireless).
INFORMATION
To increase comfort and performance, ROTEX
recommends to install the valve kit option EKVKHPC on
each heat pump convector.
Setting
▪ #: [A.2.1.7]
Value
0 (LWT control): Unit operation is
decided based on the leaving
water temperature.
▪ Code: [C-07]
Number of water temperature
zones:
0 (1 LWT zone): Main
▪ #: [A.2.1.8]
▪ Code: [7-02]
5.2.3
Additional leaving water temperature zone
Room 1
Room 2
Main leaving water temperature zone
Room 3
Remote controller of the heat pump convectors
User interface
Mixing valve station
Pressure regulating valve
INFORMATION
Configuration
Unit temperature control:
A
B
C
D
E
a
b
c
d
Multiple rooms – Two LWT zones
If the heat emitters selected for each room are designed for different
leaving water temperatures, you can use different leaving water
temperature zones (maximum 2).
In this document:
▪ Main zone = Zone with the lowest design temperature
▪ Additional zone = The other zone
CAUTION
When there is more than one leaving water zone, you must
ALWAYS install a mixing valve station in the main zone to
decrease (in heating) the leaving water temperature when
the additional zone has demand.
A pressure regulating valve should be implemented before
the mixing valve station. This is to guarantee the correct
water flow balance between the main leaving water
temperature zone and the additional leaving water
temperature zone in relation to the required capacity of
both water temperature zones.
▪ For the main zone:
▪ A mixing valve station is installed before the under floor heating.
▪ The pump of the mixing valve station is controlled by the ON/
OFF signal on the indoor unit (X2M/5 and X2M/7; normal closed
shut-off valve output).
▪ The room temperature is controlled by the user interface, which
is used as room thermostat.
▪ For the additional zone:
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ The desired room temperature is set via the remote controller of
the heat pump convectors for each room.
▪ The heating demand signals of each heat pump convector are
connected in parallel to the digital input on the indoor unit
(X2M/1 and X2M/4). The indoor unit will only supply the desired
additional leaving water temperature when there is an actual
demand.
Typical example:
Installer reference guide
12
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
5 Application guidelines
Configuration
INFORMATION
Note:
▪ During heating operation of the heat pump, the
heat pump operates to achieve the desired
temperature set via the user interface. When weatherdependent operation is active, the water temperature is
determined automatically depending on the outdoor
temperature.
▪ Main room = user interface
used as room thermostat
functionality
▪ During heating operation of the auxiliary boiler, the
auxiliary boiler operates to achieve the desired water
temperature set via the auxiliary boiler controller.
Setting
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
Value
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
▪ Other rooms = external room
thermostat functionality
Number of water temperature
zones:
1 (2 LWT zones): Main +
additional
Setup
▪ Integrate the auxiliary boiler as follows:
f
e
▪ #: [A.2.1.8]
h
▪ Code: [7-02]
In case of heat pump convectors: 1 (Thermo ON/OFF): When the
used external room thermostat or
External room thermostat for the
heat pump convector can only
additional zone:
send a thermo ON/OFF
▪ #: [A.2.2.5]
condition.
f
g
a c
▪ Code: [C-06]
Shut-off valve output
Set to follow the thermo demand
of the main zone.
At the mixing valve station
Set the desired main leaving
water temperature.
d
b b
i
j g
Benefits
FHL1
▪ Comfort.
▪ The smart room thermostat functionality can decrease or
increase the desired leaving water temperature based on the
actual room temperature (modulation).
▪ The combination of the two heat emitter systems provides the
excellent heating comfort of the under floor heating, and the
rapid air heat up of the heat pump convectors (e.g., living
room=under floor heating and the bedroom=convector (no
continuous heating)).
▪ Efficiency.
▪ Depending on the demand, the indoor unit supplies different
leaving water temperature matching the design temperature of
the different heat emitters.
▪ Under floor heating has the best performance with ROTEX
HPSU.
5.3
Setting up an auxiliary heat source
for space heating
▪ Space heating can be done by:
▪ The indoor unit
▪ An auxiliary boiler (field supply) connected to the system
▪ When the room thermostat requests heating, the indoor unit or the
auxiliary boiler starts operating depending on the outdoor
temperature (status of the changeover to external heat source).
When the permission is given to the auxiliary boiler, the space
heating by the indoor unit is turned OFF.
▪ Bivalent operation is only possible for space heating, NOT for
domestic hot water production. Domestic hot water is always
produced by the DHW tank connected to the indoor unit.
a
b
c
d
e
f
g
h
i
j
FHL1...3
FHL2
FHL3
Indoor unit
Heat exchanger
Backup heater
Pump
Shut-off valve (field supply)
Non-return valve (field supply)
Shut-off valve (field supply)
Collector (field supply)
Auxiliary boiler (field supply)
Aquastat valve (field supply)
Under floor heating
NOTICE
▪ Make sure the auxiliary boiler and its integration in the
system complies with applicable legislation.
▪ ROTEX is NOT responsible for incorrect or unsafe
situations in the auxiliary boiler system.
▪ Make sure the return water to the heat pump does NOT exceed
55°C. To do so:
▪ Set the desired water temperature via the auxiliary boiler
controller to maximum 55°C.
▪ Install an aquastat valve in the return water flow of the
heat pump.
▪ Set the aquastat valve to close above 55°C and to open below
55°C.
▪ Install non-return valves.
▪ Make sure to only have one expansion vessel in the water circuit.
An expansion vessel is already premounted in the indoor unit.
▪ Install the digital I/O PCB (option EKRP1HB).
▪ Connect X1 and X2 (changeover to external heat source) on the
PCB to the auxiliary boiler thermostat.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
13
5 Application guidelines
▪ To setup the heat emitters, see "5.2 Setting up the space heating
system" on page 8.
g g
h
Configuration
Via the user interface (quick wizard):
a
e
▪ Set the use of a bivalent system as external heat source.
d
▪ Set the bivalent temperature and hysteresis.
b
NOTICE
M
c
FHL1
▪ Make sure the bivalent hysteresis has enough
differential to prevent frequent changeover between
indoor unit and auxiliary boiler.
FHL2
UI
▪ Frequent changeover may cause corrosion of the
auxiliary boiler. Contact the manufacturer of the
auxiliary boiler for more information.
FHL3
f
Changeover to external heat source decided by an auxiliary
contact
▪ Only possible in external room thermostat control AND one
leaving water temperature zone (see "5.2 Setting up the space
heating system" on page 8).
▪ The auxiliary contact can be:
▪ An outdoor temperature thermostat
a
b
c
d
e
f
g
h
FHL1...3
UI
▪ An electricity tariff contact
▪ A manually operated contact
▪ …
▪ Setup: Connect the following field wiring:
L
H
Com
Indoor
X2M
1 2 3 4
Indoor/Auto/Boiler
A
N
BTI
A
H
K1A
K2A
Indoor
Auto
Boiler
K1A
K2A
K1A
BTI
X Y
K2A
Boiler thermostat input
Auxiliary contact (normal closed)
Heating demand room thermostat (optional)
Auxiliary relay for activation of indoor unit (field supply)
Auxiliary relay for activation of boiler (field supply)
Indoor unit
Automatic
Boiler
NOTICE
5.4.2
Indoor unit
Heat exchanger
Backup heater
Pump
Motorised 3‑way valve
DHW tank
Shut-off valve (field supply)
Collector (field supply)
Under floor heating
User interface
Selecting the desired temperature for the
DHW tank
People experience water as hot when its temperature is 40°C.
Therefore, the DHW consumption is always expressed as equivalent
hot water volume at 40°C. However, you can set the DHW tank
temperature at a higher temperature (example: 53°C), which is then
mixed with cold water (example: 15°C).
Selecting the volume and desired temperature for the DHW tank
consists of:
1
Determining the DHW consumption (equivalent hot water
volume at 40°C).
2
Determining the volume and desired temperature for the DHW
tank.
▪ Make sure the auxiliary contact has enough differential
or time delay to prevent frequent changeover between
indoor unit and auxiliary boiler.
Possible DHW tank volumes
▪ If the auxiliary contact is an outdoor temperature
thermostat, install the thermostat in the shadow so that
it is NOT influenced or turned ON/OFF by direct
sunlight.
Integrated DHW tank
▪ Frequent changeover may cause corrosion of the
auxiliary boiler. Contact the manufacturer of the
auxiliary boiler for more information.
5.4
Setting up the domestic hot water
tank
5.4.1
System layout – Integrated DHW tank
Type
Possible volumes
▪ 180 l
Energy saving tips
▪ If the DHW consumption differs from day to day, you can program
a weekly schedule with different desired DHW tank temperatures
for each day.
▪ The lower the desired DHW tank temperature, the more cost
effective.
▪ The heat pump itself can produce domestic hot water of maximum
55°C. The electrical resistance integrated in the heat pump can
higher this temperature. However, this consumes more energy.
ROTEX recommends to set the desired DHW tank temperature
below 55°C to avoid using the electrical resistance.
▪ When the heat pump produces domestic hot water, it cannot heat
up a space. When you need domestic hot water and space
heating at the same, ROTEX recommends to produce the
domestic hot water during the night when there is lower space
heating demand.
Installer reference guide
14
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
5 Application guidelines
d
e
f
Determining the DHW consumption
Answer the following questions and calculate the DHW consumption
(equivalent hot water volume at 40°C) using the typical water
volumes:
Question
How many showers are needed
per day?
Typical water volume
1 shower=10 min×10 l/min=100 l
Cold water
Domestic hot water OUT
Recirculation connection
▪ By connecting a DHW pump, instant hot water can be available at
the tap.
▪ The DHW pump and the installation are field supply and the
responsibility of the installer.
▪ For more information about connecting
connection: see "7 Installation" on page 23.
How many baths are needed per 1 bath=150 l
day?
How much water is needed at the 1 sink=2 min×5 l/min=10 l
kitchen sink per day?
the
recirculation
Configuration
▪ For more information, see "8 Configuration" on page 33.
▪ You can program a schedule to control the DHW pump via the
user interface. For more information, see the user reference
guide.
Are there any other domestic hot —
water needs?
Example: If the DHW consumption of a family (4 persons) per day is
as follows:
▪ 3 showers
5.4.5
DHW pump for disinfection
Setup
▪ 1 bath
▪ 3 sink volumes
g
b
Then the DHW consumption = (3×100 l)+(1×150 l)+(3×10 l)=480 l
Determining the volume and desired temperature for the DHW
tank
Formula
V1=V2+V2×(T2−40)/(40−T1)
h
a
Example
a
b
c
d
e
f
g
h
If:
▪ V2=180 l
▪ T2=54°C
▪ T1=15°C
Then V1=280 l
V2=V1×(40−T1)/(T2−T1)
If:
▪ V1=480 l
▪ T2=54°C
▪ T1=15°C
Then V2=307 l
V1
V2
T2
T1
5.4.3
DHW consumption (equivalent hot water volume at 40°C)
Required DHW tank volume if only heated once
DHW tank temperature
Cold water temperature
Setup and configuration – DHW tank
▪ For large DHW consumptions, you can heat up the DHW tank
several times during the day.
▪ To heat up the DHW tank to the desired DHW tank temperature,
you can use the following energy sources:
▪ Thermodynamic cycle of the heat pump
▪ Electrical backup heater
▪ For more information about optimizing the energy consumption for
producing domestic hot water, see "8 Configuration" on page 33.
c
e
d
f
DHW tank
DHW pump (field supply)
Heater element (field supply)
Non‑return valve (field supply)
Shower (field supply)
Cold water
Domestic hot water OUT
Recirculation connection
▪ The DHW pump is field-supplied and its installation is the
responsibility of the installer.
▪ The temperature of the DHW tank can be set to maximum 60°C. If
applicable legislation requires higher temperature for disinfection,
you can connect a DHW pump and heater element as shown
above.
▪ If applicable legislation requires disinfection of the water piping
until the tapping point, you can connect a DHW pump and heater
element (if needed) as shown above.
Configuration
The indoor unit can control DHW pump operation. For more
information, see "8 Configuration" on page 33.
5.5
Setting up the energy metering
▪ Via the user interface, you can read out the following energy data:
▪ Produced heat
▪ Consumed energy
▪ You can read out the energy data:
▪ For space heating
▪ For domestic hot water production
5.4.4
DHW pump for instant hot water
Setup
▪ You can read out the energy data:
▪ Per month
▪ Per year
e
a
f
b
INFORMATION
c
The calculated produced heat and consumed energy are
an estimation, the accuracy cannot be guaranteed.
d
a
b
c
DHW tank
DHW pump (field supply)
Shower (field supply)
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
15
5 Application guidelines
5.5.1
Produced heat
▪ Connection and setup:
▪ Connect the second power meter to X5M/9 and X5M/10.
INFORMATION
▪ In the software the power consumption data of both meters is
added so you do NOT have to set which meter covers which
power consumption. You only need to set the number of pulses
of each power meter.
The sensors used to calculate the produced heat are
calibrated automatically.
▪ The produced heat is calculated internally based on:
▪ The leaving and entering water temperature
▪ The flow rate
▪ Setup and configuration: No additional equipment needed.
Consumed energy
5.5.2
▪ See "5.5.4 Preferential kWh rate power supply" on page 16 for
an example with two power meters.
5.5.4
Preferential kWh rate power supply
Setup
▪ Connect power meter 1 to X5M/7 and X5M/8.
Measuring the consumed energy
▪ Requires external power meters.
▪ Setup and configuration:
▪ For the specifications of each type of meter, see "14 Technical
data" on page 66.
▪ When using electrical power meters, set the number of pulses/
kWh for each power meter via the user interface. Consumed
energy data will only be available if this setting is configured.
▪ Connect power meter 2 to X5M/9 and X5M/10.
Refer to "6.4.3 Overview of electrical connections except external
actuators" on page 22.
5.6
Setting up the power consumption
control
▪ The power consumption control:
▪ Allows you to limit the power consumption of the entire system
(sum of indoor unit and backup heater).
INFORMATION
When measuring the electrical power consumption, make
sure ALL power input of the system is covered by the
electrical power meters.
▪ Configuration: Set the power limitation level and how it has to
be achieved via the user interface.
▪ The power limitation level can be expressed as:
5.5.3
Normal kWh rate power supply
▪ Maximum running current (in A)
General rule
▪ Maximum power input (in kW)
One power meter that covers the entire system is sufficient.
▪ The power limitation level can be activated:
Setup
▪ Permanently
Connect the power meter to X5M/7 and X5M/8.
▪ By digital inputs
Power meter type
INFORMATION
Use a three-phase power meter.
▪ During emergency operation, the power consumption
control will NOT be used. This is because the backup
heater has a higher capacity then during normal
operation (9 kW instead of 6 kW) and therefore the
power calculated by the unit will be lower then the
actual power.
Example
0 0 58
0 5
1 0
b
450896
.005
d
Pi
A
A
a
b
c
d
e
5.6.1
Permanent power limitation
Permanent power limitation is useful to assure a maximum power or
current input of the system. In some countries, legislation limits the
maximum power consumption for space heating and DHW
production.
c
e
▪ If power limitation is enabled, water temperature set
points above 60°C in space heating are NOT
guaranteed.
a
Indoor unit
Electrical cabinet (L1/L2/L3/N)
Power meter (L1/L2/L3/N)
Fuse (L1/L2/L3/N)
Backup heater (L1/L2/L3/N)
Indoor unit (L1/L2/L3/N)
DI
a
b
t
Exception
▪ You can use a second power meter if:
▪ The power range of one meter is insufficient.
▪ The electrical meter cannot easily be installed in the electrical
cabinet.
Pi
t
DI
a
b
Power input
Time
Digital input (power limitation level)
Power limitation active
Actual power input
Setup and configuration
▪ No additional equipment needed.
Installer reference guide
16
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
5 Application guidelines
▪ Set the power consumption control settings as described in "To
modify an overview setting" on page 34 via the user interface (for
the description of all settings, see "8 Configuration" on page 33):
▪ Select the type of limitation (power in kW or current in A).
▪ Set the desired power limitation level corresponding to each digital
input.
▪ Select full time limitation mode
INFORMATION
▪ Select the type of limitation (power in kW or current in A)
In case more than 1 digital input is closed (at the same
time), the digital input priority is fixed: DI4 priority>…>DI1.
▪ Set the desired power limitation level
NOTICE
Set a minimum power consumption of ±3 kW to guarantee
space heating and DHW production by allowing at least
backup heater step 1.
5.6.2
Power limitation activated by digital
inputs
Power limitation is also useful in combination with an energy
management system.
The power or current of the entire ROTEX system is limited
dynamically by digital inputs. Power limitation level is set via the user
interface by limiting one of the following:
5.6.3
Power limitation process
The compressor has better efficiency than the electrical heater.
Therefore, the electrical heater is limited and turned OFF first. The
system limits power consumption in the following order:
1
2
3
4
Limits electrical heater.
Turn OFF the electrical heater.
Limits the compressor.
Turns OFF the compressor.
Example
Ph
▪ Current (in A)
c
▪ Power input (in kW)
b
The energy management system (field supply) decides the activation
of a certain power limitation level. Example: To limit the maximum
power of the entire house (lighting, domestic appliances, space
heating…).
a
A
5
4
3
A8P 21
b
A
B
a
b
Pi
DI1
B
Ph
Ce
A
B
a
b
c
d
B
a
A
5.7
Indoor unit
Energy management system
Power limitation activation (4 digital inputs)
Backup heater
d
Ce
Produced heat
Consumed energy
Compressor
Backup heater
Limited compressor operation
Full compressor operation
Backup heater step 1 turned ON
Backup heater step 2 turned ON
Setting up an external temperature
sensor
Indoor ambient temperature
You can connect one external temperature sensor. It can measure
the indoor ambient temperature. ROTEX recommends to use an
external temperature sensor in the following cases:
a
DI3
▪ In room thermostat control, the user interface is used as room
thermostat and it measures the indoor ambient temperature.
Therefore, the user interface must be installed on a location:
b
DI4
▪ Where the average temperature in the room can be detected
t
Pi
t
DI
a
b
▪ That is NOT exposed to direct sunlight
Power input
Time
Digital inputs (power limitation levels)
Power limitation active
Actual power input
▪ That is NOT near a heat source
▪ That is NOT affected by outside air or air draught because of,
for example, door opening/closing
Setup
▪ If this is NOT possible, ROTEX recommends to connect a remote
indoor sensor (option KRCS01-1).
▪ Demand PCB (option EKRP1AHTA) needed.
▪ Maximum four digital inputs are
corresponding power limitation level:
used
to
activate
the
▪ Setup: For installation instructions, see the installation manual of
the remote indoor sensor.
▪ DI1 = weakest limitation (highest energy consumption)
▪ Configuration: Select room sensor [A.2.2.B].
▪ DI4 = strongest limitation (lowest energy consumption)
Outdoor ambient temperature
▪ For the specification and the connection of the digital inputs, see
"14.5 Wiring diagram" on page 71.
The remote outdoor sensor (delivered as accessory) measures the
outdoor ambient temperature.
Configuration
Set the power consumption control settings as described in "To
modify an overview setting" on page 34 via the user interface (for
the description of all settings, see "8 Configuration" on page 33):
▪ Select activation by digital inputs.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
17
6 Preparation
▪ Setup:
▪ To install the remote outdoor sensor outside, see the
installation manual of the sensor (delivered as accessory).
▪ To connect the remote outdoor sensor to the indoor unit, see
"7.6.7 To connect the remote outdoor sensor" on page 30.
▪ Configuration: None.
▪ In places where frost is possible. Ambient temperature around the
indoor unit should be >5°C.
▪ The indoor unit is designed for indoor installation only and for
ambient temperatures ranging from 5~30°C.
6.3
Preparing piping
6.3.1
Circuit requirements
6
Preparation
INFORMATION
6.1
Overview: Preparation
Also read the precautions and requirements in the
"General safety precautions" chapter.
This chapter describes what you have to do and know before going
on-site.
It contains information about:
▪ Preparing the installation site
▪ Preparing the piping
▪ Preparing the electrical wiring
6.2
Preparing installation site
Do NOT install the unit in places often used as work place. In case
of construction works (e.g. grinding works) where a lot of dust is
created, the unit must be covered.
Choose the installation location with sufficient place for carrying the
unit in and out of the site.
6.2.1
Installation site requirements of the
indoor unit
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
▪ Mind the following spacing installation guidelines:
Circuit types. Except for the refrigerant circuit, inside the unit 2
other circuits are included. For future references: the circuit
connected to the bore hole is referred to as the brine circuit, the
other circuit connected to the heating emitters is referred to as the
space heating circuit.
▪ Connecting piping – Legislation. Make all piping connections in
accordance with the applicable legislation and the instructions in
the "Installation" chapter, respecting the water inlet and outlet.
▪ Connecting piping – Force. Do NOT use excessive force when
connecting the piping. Deformation of the piping can cause
malfunctioning of the unit.
▪ Connecting piping – Tools. Only use appropriate tooling to
handle brass, which is a soft material. If NOT, pipes will get
damaged.
▪ Connecting piping – Air, moisture, dust. If air, moisture or dust
gets into the circuit, problems may occur. To prevent this:
▪ Only use clean pipes
▪ Hold the pipe end downwards when removing burrs.
▪ Cover the pipe end when inserting it through a wall, to prevent
dust and/or particles entering the pipe.
▪ Use a decent thread sealant to seal connections.
▪ Closed circuit. Use the indoor unit ONLY in a closed water
system for brine circuit and space heating circuit. Using the
system in an open water system will lead to excessive corrosion.
WARNING
When connecting to an open groundwater system, an
intermediate heat exchanger is required to prevent
damage (dirt, freeze ups) to the unit.
≥50
>500
≥50
▪ Glycol. For safety reasons, it is NOT allowed to add any kind of
glycol to the space heating circuit.
▪ Piping length. It is recommended to avoid long runs of piping
between the domestic hot water tank and the hot water end point
(shower, bath,…) and to avoid dead ends.
Do NOT install the unit in places such as:
▪ Piping diameter. Select the piping diameter in relation to the
required flow and the available external static pressure of the
pump. See "14 Technical data" on page 66 for the external static
pressure curves of the indoor unit.
▪ In places where a mineral oil mist, spray or vapour may be
present in the atmosphere. Plastic parts may deteriorate and fall
off or cause water leakage.
▪ Fluid flow. You can find the minimum required water for the
indoor unit operation in the following table. When the flow is lower,
flow error 7H will be displayed and the indoor unit will be stopped.
(mm)
▪ Sound sensitive areas (e.g. near a bedroom and the like), so that
the operation noise will cause no trouble.
▪ The foundation must be strong enough to bear the weight of the
unit. Take the weight of the unit with a domestic hot water tank full
of water into account.
Make sure, in the event of a water leak, water cannot cause any
damage to the installation space and surroundings.
▪ In places with high humidity (max. RH=85%), for example a
bathroom.
Installer reference guide
18
Model
10
Minimum flow during backup heater
operation
▪ Space heating circuit: 12 l/min
▪ Brine circuit: 25 l/min
▪ Field supply components – Fluid. Only use materials that are
compatible with fluid used in the system and with the materials
used in the indoor unit.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
6 Preparation
▪ Field supply components – Fluid pressure and temperature.
Check that all components in the field piping can withstand the
fluid pressure and fluid temperature.
▪ Fluid pressure – Space heating and brine circuit. The
maximum fluid pressure of the space heating and brine circuit is
4 bar. Provide adequate safeguards in the water circuit to ensure
that the maximum pressure is NOT exceeded.
▪ Fluid pressure – Domestic hot water tank. The maximum fluid
pressure of the domestic hot water tank is 10 bar. Provide
adequate safeguards in the water circuit to ensure that the
maximum pressure is NOT exceeded.
▪ Fluid temperature. All installed piping and piping accessories
(valve, connections,…) MUST withstand the following
temperatures:
INFORMATION
The following illustration is an example and might NOT
match your system layout.
WARNING
▪ All pipe work connected to the brine pressure relief
valve MUST have a continuous fall.
▪ The discharge pipe from the brine pressure relief valve
MUST terminate in a safe, visible position without
forming any risk to persons in the vicinity.
▪ Air vents. Provide air vents at all high points of the system, which
must also be easily accessible for servicing. At the space heating
side, an automatic air purge is provided in the indoor unit. Check
that the air purge is NOT tightened too much, so that automatic
release of air in the water circuit is possible.
▪ Zn-coated parts. NEVER use Zn-coated parts in the fluid circuit.
Because the unit's internal circuit uses copper piping, excessive
corrosion may occur. Zn coated parts used in the brine circuit may
lead to the precipitation of certain components in the anti-freeze
fluids corrosion inhibitor.
WARNING
Due to presence of glycol, corrosion of the system is
possible. Uninhibited glycol will turn acidic under the
influence of oxygen. This process is accelerated by the
presence of copper and high temperatures. The acidic
uninhibited glycol attacks metal surfaces and forms
galvanic corrosion cells that cause severe damage to the
system. Therefore it is important that:
65°C
70°C
a
i
▪ a glycol with corrosion inhibitors is selected to
counteract acids formed by the oxidation of glycols,
h
j
▪ no automotive glycol is used because their corrosion
inhibitors have a limited lifetime and contain silicates
which can foul or plug the system,
e
g
M
f M
FCU1
FCU2
h
FCU3
d
e
FHL1
▪ galvanized pipes are NOT used in glycol systems since
the presence may lead to the precipitation of certain
components in the glycol's corrosion inhibitor.
INFORMATION
h
c
b b
▪ the water treatment is correctly executed by a qualified
water specialist,
h
FHL2
FHL3
Be aware of the hygroscopic property of anti-freeze fluids:
it absorbs moisture from its environment. Leaving the cap
off the anti-freeze fluid container causes the concentration
of water to increase. The anti-freeze fluid concentration is
then lower than assumed. And in consequence, freezing
can happen after all.
Preventive actions MUST be taken to ensure minimal
exposure of the anti-freeze fluid to air.
a
b
c
d
e
f
g
h
i
j
FCU1...3
FHL1...3
Indoor unit
Heat exchanger
Backup heater
Pump
Stop valve
Motorised 3-way valve
Motorised 2-way valve (field supply)
Collector
Domestic hot water tank
Heat exchanger coil
Fan coil unit (optional)
Floor heating loop
▪ Drainage – Low points. Provide drain taps at all low points of the
system in order to allow complete drainage of the circuit.
▪ Drainage – Pressure relief valve. Provide a proper drain for the
pressure relief valve to avoid fluid dripping out of the unit. See
"7.5.5 To connect the pressure relief valve to the drain" on
page 27.
▪ Non-brass metallic piping. When using non-brass metallic
piping, insulate the brass and non-brass properly so that they do
NOT make contact with each other. This to prevent galvanic
corrosion.
▪ Valve – Change‑over time. When using a 2-way valve in the
space heating circuit, the maximum change-over time of the valve
MUST be 60 seconds.
▪ Domestic hot water tank – Capacity. To avoid stagnation of
water, it is important that the storage capacity of the domestic hot
water tank meets the daily consumption of domestic hot water.
▪ Domestic hot water tank – After installation. Immediately after
installation, the domestic hot water tank must be flushed with fresh
water. This procedure must be repeated at least once a day the
first 5 consecutive days after installation.
▪ Domestic hot water tank – Standstills. In cases where during
longer periods of time there is no consumption of hot water, the
equipment MUST be flushed with fresh water before usage.
▪ Domestic hot water tank – Disinfection. For the disinfection
function of the domestic hot water tank, see "8.3.2 Domestic hot
water control: advanced" on page 46.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
19
6 Preparation
▪ Thermostatic mixing valves. In accordance with the applicable
legislation, it may be necessary to install thermostatic mixing
valves.
T1
e
e
a
M1
M2
M3
g
f
c
▪ Recirculation pump. In accordance with the applicable
legislation, it may be required to connect a recirculation pump in
between the hot water end point and the recirculation connection
of the domestic hot water tank.
d
b
d
b
FHL1
FHL2
FHL3
c
d
b
a
b
c
d
6.3.2
T3
f
▪ Hygienic measures. The installation must be in compliance with
the applicable legislation and may require additional hygienic
installation measures.
a
T2
e
Recirculation connection
Hot water connection
Shower
Recirculation pump
a
b
c
d
e
f
g
FHL1...3
T1...3
M1...3
Formula to calculate the expansion vessel
pre-pressure
The pre-pressure (Pg) of the vessel depends on the installation
height difference (H):
Pg=0.3+(H/10) (bar)
Indoor unit
Heat exchanger
Backup heater
Pump
Shut-off valve (field supply)
Collector (field supply)
By-pass valve (field supply)
Floor heating loop (field supply)
Individual room thermostat (optional)
Individual motorised valve to control loop FHL1...3 (field
supply)
Maximum water volume
6.3.3
To check the water volume and flow rate
of the space heating circuit and brine
circuit
The indoor unit has 2 expansion vessels of 10 litre, one for the
space heating circuit and one for the brine circuit.
To make sure that the unit operates properly:
▪ You must check the minimum and maximum water volume.
▪ You might need to adjust the pre-pressure of the expansion
vessel.
▪ You must check the total space heating water volume unit.
Use the following graphs to determine the maximum water volume
for the calculated pre-pressure. For brine, this is dependent on the
variation of brine temperature in the system. Example: throughout
the year, the temperature of the brine can fluctuate between –7°C
and 10°C, as in graph 1, or between 0°C and 10°C as in graph 2.
Graph 1: Brine temperature fluctuation is 17°C
a
2.5
2
▪ You must check the total brine water volume in the unit.
Minimum water volume
Check that the total water volume per circuit in the installation is
minimum 20 litre, the internal water volume of the indoor unit NOT
included.
INFORMATION
If a minimum heating load of 1 kW can be guaranteed and
setting [9‑04] is changed by the installer from 1 to 4°C, the
minimum water volume can be lowered to 10 litre.
INFORMATION
In critical processes, or in rooms with a high heat load,
extra water might be required.
NOTICE
When circulation in each space heating loop is controlled
by remotely controlled valves, it is important that the
minimum water volume is guaranteed, even if all of the
valves are closed.
Installer reference guide
20
1.5
1
0.5
0.3
0
0
20
200
a
b
400
600
800
1000
b
Pre-pressure (bar)
Maximum water volume (l)
Space heating vessel
40% propylene glycol (brine expansion vessel)
29% ethanol (brine expansion vessel)
Graph 2: Brine temperature fluctuation is 10°C
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
6 Preparation
2.5
a
a
6.3.5
Schräder valve
To check the water volume: Examples
Example 1
2
The indoor unit is installed 5 m below the highest point in the water
circuit. The total water volume in the water circuit is 100 l.
1.5
No actions or adjustments are required.
1
Example 2
The indoor unit is installed at the highest point in the water circuit.
The total water volume in the water circuit is 300 l.
0.5
0
Actions:
0
20
500
a
b
1000
1500
1750
b
Pre-pressure (bar)
Maximum water volume (l)
Space heating vessel
40% propylene glycol (brine expansion vessel)
29% ethanol (brine expansion vessel)
▪ Because the total water volume (300 l) is more than the default
water volume (280 l), the pre-pressure must be decreased.
▪ The required pre-pressure is:
Pg = (0.3+(H/10)) bar = (0.3+(0/10)) bar=0.3 bar.
▪ The corresponding maximum water volume at 0.3 bar is 350 l.
(See the graph in the chapter above).
Minimum flow rate
▪ Because 300 l is lower than 350 l, the expansion vessel is
appropriate for the installation.
Check that the minimum flow rate (required during defrost/backup
heater operation) in the installation is guaranteed in all conditions.
6.4
Preparing electrical wiring
6.4.1
About preparing electrical wiring
NOTICE
When circulation in each or certain space heating loops is
controlled by remotely controlled valves, it is important that
the minimum flow rate is guaranteed, even if all valves are
closed. In case the minimum flow rate cannot be reached,
a flow error 7H will be generated (no heating/operation).
Minimum required flow rate during backup heater operation
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
WARNING
12 l/min
▪ If the power supply has a missing or wrong N-phase,
equipment might break down.
See the recommended procedure as described in "9.4 Checklist
during commissioning" on page 55.
▪ Establish proper earthing. Do NOT earth the unit to a
utility pipe, surge absorber, or telephone earth.
Incomplete earthing may cause electrical shock.
6.3.4
Changing the pre-pressure of the
expansion vessel
NOTICE
Only a licensed installer may adjust the pre-pressure of the
expansion vessel.
When changing the default pre-pressure of the expansion vessel
(1 bar) is required, take following guidelines into account:
▪ Only use dry nitrogen to set the expansion vessel pre-pressure.
▪ Inappropriate setting of the expansion vessel pre-pressure will
lead to malfunction of the system.
Changing the pre-pressure of the expansion vessel should be done
by releasing or increasing nitrogen pressure through the schräder
valve of the expansion vessel.
▪ Install the required fuses or circuit breakers.
▪ Secure the electrical wiring with cable ties so that the
cables do NOT come in contact with sharp edges or
piping, particularly on the high-pressure side.
▪ Do NOT use taped wires, stranded conductor wires,
extension cords, or connections from a star system.
They can cause overheating, electrical shock or fire.
▪ Do NOT install a phase advancing capacitor, because
this unit is equipped with an inverter. A phase
advancing capacitor will reduce performance and may
cause accidents.
WARNING
▪ All wiring must be performed by an authorized
electrician and must comply with the applicable
legislation.
▪ Make electrical connections to the fixed wiring.
a
a
▪ All components procured on the site and all electrical
construction must comply with the applicable
legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
21
6 Preparation
6.4.2
3
About preferential kWh rate power supply
NOTICE
Electricity companies throughout the world work hard to provide
reliable electric service at competitive prices and are often
authorized to bill clients at benefit rates. E.g. time-of-use rates,
seasonal rates, Wärmepumpentarif in Germany and Austria, ...
The setting brine freezing temperature can be modified
and the read out is correct in [A.6.9] Brine freezeup temp
ONLY after having accessed menu [A.8] Overview
settings.
This equipment allows for connection to such preferential kWh rate
power supply delivery systems.
This setting can ONLY be modified and/or saved and the
read out is ONLY correct if the communication between
hydro module and compressor module is present. The
communication between hydro module and compressor
module is NOT guaranteed and/or applicable if:
Consult with the electricity company acting as provider at the site
where this equipment is to be installed to know whether it is
appropriate to connect the equipment in one of the preferential kWh
rate power supply delivery systems available, if any.
▪ error "U4" appears on the user interface,
When the equipment is connected to such preferential kWh rate
power supply, the electricity company is allowed to:
▪ the heat pump module is connected to preferential kWh
rate power supply where power supply is interrupted
and preferential kWh rate power supply is activated.
▪ interrupt power supply to the equipment for certain periods of time;
▪ demand that the equipment only consumes a limited amount of
electricity during certain periods of time.
The indoor unit is designed to receive an input signal by which the
unit switches into forced off mode. At that moment, the unit
compressor will not operate.
6.4.4
INFORMATION
The following illustration is an example and might NOT
match your system layout.
Overview of electrical connections except
external actuators
a
General remark about abbreviations in this and the following
chapters:
▪ E1 = Refrigerant cycle components (e.g. compressor) and brine
piping parts (e.g. brine pump)
▪ E3 = Backup heater
a
Power supply is
NOT interrupted
0 0 58
a
0 0 58
0 5
1 0
22
16
17
14
18
19
M
Normal power supply
Preferential kWh rate power supply
Power supply for E1 and E3
Power supply for E2
Indoor unit
Description
Wires
Maximum
running
current
Indoor unit power supply
3
1
1+2 3
Installer reference guide
14
0 5
1 0
During preferential
kWh rate power
During preferential
supply activation,
kWh rate power
power supply is
supply activation,
interrupted
power supply is NOT immediately or after
interrupted. E1 is
some time by the
turned off by the
electricity company.
control.
In this case, the
hydro PCB MUST be
Remark: The
powered by a
electricity company
MUST always allow separate normal
power supply.
the power
consumption of E2
and E3.
a
b
1
2
12
Item
b
0 5
1 0
2
1+2
15
a
Power supply is
interrupted
b
0 5
1 0
6
Preferential kWh rate power supply
0 0 58
0 0 58
20
13
▪ E2 = All other components except backup heater
Normal power
supply
Overview of electrical connections for
external and internal actuators
The following illustration shows the required field wiring.
Whether the power supply is interrupted or not, the wiring to the unit
is different.
6.4.3
Preferential kWh rate power supply (voltage free contact)
1
Power supply for E1
and E3
3+N + GND
(a)
2
Power supply for E2
2
(c)
4
Preferential kWh rate
power supply (voltage
free contact)
2
(d)
5
Normal kWh rate power 2
supply
6.3 A
User interface
6
User interface
2
(e)
Optional equipment
12
Room thermostat
3 or 4
100 mA(b)
13
Outdoor ambient
temperature sensor
2
(b)
14
Indoor ambient
temperature sensor
2
(b)
15
Heat pump convector
4
100 mA(b)
Field supplied components
16
Shut-off valve
2
100 mA(b)
17
Electricity meter
2 (per meter)
(b)
18
Domestic hot water
pump
2
(b)
19
Alarm output
2
(b)
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
7 Installation
Item
Description
Wires
Maximum
running
current
20
Changeover to external 2
heat source control
(b)
22
Power consumption
digital inputs
(b)
(a)
(b)
(c)
(d)
(e)
2 (per input
signal)
4
5
4×
2
Refer to name plate on unit.
Minimum cable section 0.75 mm².
Cable section 2.5 mm².
Cable section 0.75 mm² till 1.25 mm²; maximum length:
50 m. Voltage-free contact shall ensure the minimum
applicable load of 15 V DC, 10 mA.
Cable section 0.75 mm² till 1.25 mm²; maximum length:
500 m. Applicable for both single user interface and dual
use interface connection.
3
NOTICE
More technical specifications of the different connections
are indicated on the inside of the indoor unit.
7
Installation
7.1
Overview: Installation
This chapter describes what you have to do and know on-site to
install the system.
2
2×
1
7.2.3
Typical workflow
To open the switch box cover of the
indoor unit
Installation typically consists of the following stages:
1
2
3
4
5
Mounting the indoor unit.
Connecting the brine piping.
Connecting the water piping.
Connecting the electrical wiring.
Finishing the indoor installation.
7.2
Opening the units
7.2.1
About opening the units
At certain times, you have to open the unit. Example:
▪ When connecting the electrical wiring
7×
▪ When maintaining or servicing the unit
DANGER: RISK OF ELECTROCUTION
Do NOT leave the unit unattended when the service cover
is removed.
7.2.2
To open the indoor unit
1
Loosen and remove the screws at the bottom of the unit.
2
Push on the button at the bottom of the front plate.
WARNING: Sharp edges
Take the front plate on the upper part instead of the lower
part. Watch your fingers, there are sharp edges on the
lower part of the front plate.
3
Slide the front panel of the unit downwards and remove it.
7.3
Mounting the indoor unit
7.3.1
About mounting the indoor unit
When
CAUTION
You have to mount the indoor unit before you can connect the brine
and water piping.
The front panel is heavy. Be careful NOT to jam your
fingers when opening or closing the unit.
Typical workflow
4
Loosen and remove the 4 screws that fix the top panel.
5
Remove the top panel from the unit.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Mounting the indoor unit typically consists of the following stages:
1
Installing the indoor unit.
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23
7 Installation
7.3.2
Precautions when mounting the indoor
unit
NOTICE
Do NOT throw away any bolts. They need to be re-inserted
when transport or heavy manipulation is required.
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
7.3.3
To install the indoor unit
1
Bring the unit on the pallet as close as possible to its installation
place.
2
Lift the indoor unit from the pallet and place it on the floor.
4×
1
5
Open the front plate of the unit. If needed, the nylon bands for
lifting can be used.
6
Adjust the height of the 4 leveling feet of the outer frame to
compensate for floor irregularities. The maximum allowed
deviation is 1°.
2
210kg
3
Slide the indoor unit into position. Make sure that the side
support bolts are present when handling the unit.
≤1°
NOTICE
4
Unlink the heat pump module from the outer frame. ONLY
remove the side support bolts!
To avoid structural damage on unit, ONLY move the unit
when levelling feet are at their lowest position.
2×
NOTICE
For optimum sound reduction, carefully check if there is no
gap between the bottom frame and the floor.
7
Adjust the height of the 2 front leveling feet of the inner frame to
compensate for irregularities.
CAUTION
Check that the heat pump module does NOT touch the
outer casing.
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7 Installation
7.4.3
NOTICE
To connect the brine piping
Check if the front support bolts remain levelled and are
NOT stressed. The support feet from outer (b) and inner
frame (c) MUST be adjusted so that those front bolts
remain level. Do NOT adjust support foot (a)!
a
b
Bottom view:
a
b
Brine out
Brine in
NOTICE
c
To facilitate service and maintenance, it is recommended
to install shut-off valves as close as possible to the inlet
and outlet of the unit.
b
7.4.4
To fill the brine circuit
WARNING
a
Before, during and after filling carefully check the brine
circuit for leakage.
WARNING
Temperature of the fluid running through the evaporator
can become negative. It MUST be protected against
freezing. Refer to setting [A‑04] in "8.2.2 Quick wizard:
Standard" on page 36.
Side view:
INFORMATION
The materials used in the units brine circuit are chemically
resistant to the following anti-freeze fluids:
▪ 40 mass% propylene glycol
▪ 29 mass% ethanol
INFORMATION
1
Connect the unit to the field supplied brine filling system.
To check if the front support bolts are not stressed, loosen
them partly and fix them again afterwards.
2
Position the 3‑way valve correctly.
3
Fill the circuit with brine until the manometer indicates a
pressure of ±2.0 bar.
7.4
Connecting the brine piping
7.4.1
About connecting the brine piping
Before connecting the brine piping
Make sure the indoor unit is mounted.
Typical workflow
Connecting the brine piping typically consists of the following stages:
1
2
3
Connecting the brine piping.
Filling the brine circuit.
Connecting the pressure relief valve to the drain on the brine
side.
4
Insulating the brine piping.
7.4.2
Precautions when connecting the brine
piping
INFORMATION
a
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
a
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ROTEX HPU ground
4P374245-1A – 2015.10
Brine manometer
Installer reference guide
25
7 Installation
4
Purge as much air as possible from the brine circuit. For
instructions, see "9 Commissioning" on page 55.
7.5
Connecting the water piping
5
Return the 3‑way valve to its original position.
7.5.1
About connecting the water piping
Before connecting the water piping
Make sure the indoor unit is mounted.
Typical workflow
Connecting the water piping typically consists of the following
stages:
1
2
3
4
5
6
7
Connecting the water piping of the indoor unit.
Connecting the pressure relief valve to the drain.
Filling the space heating circuit.
Filling the domestic hot water tank.
Insulating the water piping.
Connecting the recirculation piping.
Connecting the drain hose.
7.5.2
7.4.5
Precautions when connecting the water
piping
INFORMATION
To connect the pressure relief valve to the
drain on the brine side
Also read the precautions and requirements in the
following chapters:
The blow out of the pressure relief valve is coming out of the
backside of the unit.
▪ General safety precautions
▪ Preparation
7.5.3
To connect the water piping
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit.
1
Connect the domestic hot water in and out pipes to the indoor
unit.
a
c
d
a
b
c
d
b
Space heating water out
Space heating water in
Domestic hot water out
Domestic cold water in (cold water supply)
NOTICE
It is recommended to install shut-off valves to cold water in
and hot water out connections. Shut-off valves are field
supplied.
WARNING
NOTICE
▪ All pipe work connected to the brine pressure relief
valve MUST have a continuous fall.
▪ The discharge pipe from the brine pressure relief valve
MUST terminate in a safe, visible position without
forming any risk to persons in the vicinity.
7.4.6
To avoid damage to the surroundings in case of domestic
water leakage, it is recommended to close the cold water
inlet stop valves during periods of absence.
2
Connect the space heating in and out pipes to the indoor unit.
To insulate the brine piping
The piping in the complete brine circuit MUST be insulated to
prevent reduction of the heating capacity.
Consider that the brine circuit piping inside the house can/will
condensate. Foresee adequate insulation for these pipes.
Installer reference guide
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7 Installation
NOTICE
▪ A drain device and pressure relief device should be
installed on the cold water inlet connection of the
domestic hot water cylinder.
▪ To avoid back siphonage, it is recommended to install a
non-return valve on the water inlet of the domestic hot
water tank in accordance with the applicable legislation.
a
▪ It is recommended to install a pressure reducing valve
on the cold water inlet in accordance with the
applicable legislation.
▪ An expansion vessel should be installed on the cold
water inlet in accordance with the applicable legislation.
▪ It is recommended to install the pressure relief valve on
a higher position than the top of the domestic hot water
tank. Heating of the domestic hot water tank causes
water to expand and without pressure relief valve the
water pressure inside the tank can rise above the tank
design pressure. Also the field installation (piping,
tapping points, etc.) connected to the tank is subjected
to this high pressure. To prevent this, a pressure
relieve valve needs to be installed. The overpressure
prevention depends on the correct operation of the field
installed pressure relief valve. If this is NOT working
correctly, overpressure will deform the tank and water
leakage may occur. To confirm good operation, regular
maintenance is required.
7.5.4
To connect the recirculation piping
Prerequisite: Only required if you need recirculation in your system.
1
Loosen and remove the screws at the bottom of the unit.
2
Slide the front panel of the unit downwards and remove it.
3
Loosen and remove the 4 screws that fix the top panel.
4
Remove the top panel from the unit.
a
Pressure relief blow-out
The blow out should be connected to an appropriate drain according
to the applicable legislation. It is recommended to use a tundish.
WARNING
The discharge pipes from the pressure relief valves MUST
terminate in a safe and visible position without forming any
risk to persons in the vicinity.
7.5.6
To connect the drain hose
Condensate can form on the brine components inside the
compressor department of the unit. The unit contains a drain pan.
Depending on room ambient temperature, room humidity and
operation condition, the drain pan can overflow. A drain hose is
supplied with the unit.
The drain hose is routed to the backside on the left, close to the
bottom of the unit. A field supplied drain pump might be needed to
pump the water away to the field drain.
7.5.7
To fill the space heating circuit
1
Connect the water supply hose to the fill valve (field supply).
2
Open the fill valve.
3
Make sure that the automatic air purge valve is open (at least 2
turns).
a
b
INFORMATION
For location of the air purge valve, see "Dimensions and
service space: Indoor unit" in chapter "14 Technical
data" on page 66.
a
b
Knock-out hole
Connection for recirculation piping
5
Remove the knock-out hole at the backside of the unit.
6
Connect the recirculation piping to the recirculation connection
and route the piping through the knock-out hole at the backside
of the unit.
7
Re-attach the insulation and casing.
7.5.5
4
a
To connect the pressure relief valve to the
drain
The blow out of the pressure relief valve is coming out of the
backside of the unit.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Fill the circuit with water until the manometer indicates a
pressure of ±2.0 bar.
a
5
Water manometer
Purge as much air as possible from the water circuit.
Installer reference guide
27
7 Installation
NOTICE
▪ Air in the water circuit can cause malfunctioning of the
backup heater. During filling, it may not be possible to
remove all the air from the circuit. Remaining air will be
removed through the automatic air purge valves during
the initial operating hours of the system. Additional
filling with water afterwards may be required.
▪ To purge the system, use the special function as
described in the chapter "9 Commissioning" on
page 55. This function should be used to purge the
heat exchanger coil of the domestic hot water tank.
6
Close the fill valve.
7
Disconnect the water supply hose from the fill valve.
7.6.2
Equipment complying with EN/IEC 61000‑3‑12 (European/
International Technical Standard setting the limits for harmonic
currents produced by equipment connected to public low-voltage
systems with input current >16 A and ≤75 A per phase.).
7.6.3
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
The water pressure indicated on the manometer will vary
depending on the water temperature (higher pressure at
higher water temperature).
DANGER: RISK OF ELECTROCUTION
INFORMATION
However, at all times water pressure shall remain above
1 bar to avoid air entering the circuit.
1
More information about the legend and the location of the
wiring diagram of the unit can be found in the "Technical
data" chapter.
To fill the domestic hot water tank
WARNING
Open every hot water tap in turn to purge air from the system
pipe work.
2
Open the cold water supply valve.
3
Close all water taps after all air is purged.
4
Check for water leaks.
5
Manually operate the field-installed pressure relief valve to
ensure a free water flow through the discharge pipe.
7.5.9
To insulate the water piping
Precautions when connecting the
electrical wiring
INFORMATION
NOTICE
7.5.8
About electrical compliance
ALWAYS use multicore cable for power supply cables.
7.6.4
Guidelines when connecting the electrical
wiring
Keep the following in mind:
▪ If stranded conductor wires are being used, install a round crimpstyle terminal on the tip. Place the round crimp-style terminal on
the wire up to the covered part and fasten the terminal with the
appropriate tool.
The piping in the complete water circuit MUST be insulated to
prevent reduction of the heating capacity.
7.6
Connecting the electrical wiring
7.6.1
About connecting the electrical wiring
b
a
a
b
Stranded conductor wire
Round crimp-style terminal
▪ Use the following methods for installing wires:
Before connecting the electrical wiring
Make sure the brine and water piping are connected.
Typical workflow
Wire type
Single core wire
A
Connecting the electrical wiring typically consists of the following
stages:
1
Making sure the power supply system complies with the
electrical specifications of the heat pump.
2
3
4
5
6
7
8
9
10
11
12
Connecting the electrical wiring to the indoor unit.
Connecting the main power supply.
Connecting the remote outdoor sensor.
Connecting the user interface.
Connecting the shut–off valves.
Connecting the electrical meters.
Connecting the domestic hot water pump.
Connecting the alarm output.
Connecting the space heating ON/OFF output.
Connecting the changeover to an external heat source.
Connecting the power consumption digital inputs.
Installation method
cb
AA´
A´
c
a
a
a Curled single core wire
b Screw
c Flat washer
Stranded conductor
wire with round
crimp-style terminal
cb
a
B
bc
B
a
a Terminal
b Screw
c Flat washer
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7 Installation
a
Tightening torques
Item
c
Tightening torque (N•m)
X1M
2.2~2.7
X2M
0.8~0.9
X5M
1×
7.6.5
≥50 mm
To connect the electrical wiring on the
indoor unit
1×
INFORMATION
≥50 mm
Foresee additional cable length of 35 cm for all wires which
should be connected to X2M and X5M on sheet metal
support above the hydro PCB. Additional wire length
should be tie wrapped at the back side of the unit. Reason
is to guarantee serviceability of, for example, the hydro
PCB.
1
To open the indoor unit, see "7.2.2 To open the indoor unit" on
page 23 and "7.2.3 To open the switch box cover of the indoor
unit" on page 23.
2
Wiring should enter the unit from the top:
a
c
b
c
a
≥50
3
mm
Routing of the wiring inside the unit should be as follows:
a
c
b
a
c
1×
YC Y1 Y2 Y3 Y4
1×
1×
X1 X2 X3 X4
1×
X2M
X5M
11 12
NOTICE
▪ Make sure that 50 mm is guaranteed between the low
voltage (a) and high voltage (c) cables.
▪ Make sure that the cables (a) and (c) are routed
between the wire guide and the backside of the switch
box to prevent water ingress.
4
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ROTEX HPU ground
4P374245-1A – 2015.10
Fix the cable with cable ties to the cable tie mountings to
ensure strain relief and to make sure that it does NOT come in
contact with the piping and sharp edges.
Installer reference guide
29
7 Installation
Routing
Possible cables (depending on unit type and installed options)
a
▪ Preferential power supply contact
Low voltage
▪ User interface
▪ Power consumption digital inputs (field supply)
▪ Outdoor ambient temperature sensor
▪ Indoor ambient temperature sensor (option)
▪ Electrical meters (field supply)
b
▪ Normal kWh rate power supply (power supply for unit)
High voltage power supply
c
▪ Preferential kWh rate power supply
High voltage control signal ▪ Heat pump convector (option)
▪ Room thermostat (option)
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
▪ Alarm output
▪ Changeover to external heat source control
S1S
CAUTION
N
L
Do NOT push or place redundant cable length in the unit.
7.6.6
1
c
To connect the main power supply
b
Connect the main power supply.
X1A X19A
In case of normal kWh rate power supply
X2M
X1A X19A
X5M
X2M
34
30 31
X5M
30 31
29
34
X6Y X6YB
X6YA
X6YB
X1M
X6Y X6YA
X1M
N
L3
L2
L1
a
N
L3
L2
L1
a
b
c
Legend: see illustration below.
a
2
Main power supply
Normal kWh rate power supply
Preferential power supply contact
Fix the cable with cable ties to the cable tie mountings.
INFORMATION
In case of preferential kWh rate power supply, connect
X6Y to X6YB. The necessity of separate normal kWh rate
power supply to indoor unit (b) X2M30/31 depends on the
type of preferential kWh rate power supply.
In case of preferential kWh rate power supply
Connect X6Y to X6YB.
Separate connection to the indoor unit is required:
▪ if preferential kWh rate power supply is interrupted
when active, OR
▪ if no power consumption of the indoor unit is allowed at
the preferential kWh rate power supply when active.
7.6.7
To connect the remote outdoor sensor
The remote outdoor sensor (delivered as accessory) measures the
outdoor ambient temperature.
Installer reference guide
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7 Installation
1
INFORMATION
#
If the desired leaving water temperature is weather
dependent, the full time outdoor temperature measurement
is important.
2
At the indoor unit
The PCB is mounted in the faceplate of the user interface.
Be careful NOT to damage it.
Connect the external temperature sensor cable to the indoor
unit.
X5M
In the room
Insert a screwdriver into the slots underneath the user
interface and carefully separate the faceplate from the
wallplate.
3
Fix the wallplate of the user interface Fix the wallplate of
to the sheet metal of the unit.
the user interface to
the wall.
Be careful NOT to distort the shape
of the backside of the user interface
by overtightening the mounting
screws.
4
Connect as shown in 4A.
5
Reinstall the faceplate onto the wallplate.
X2M
101112
2
Fix the cable with cable ties to the cable tie mountings.
3
Install the remote outdoor sensor outside as described in the
installation manual of the sensor (delivered as accessory).
7.6.8
To connect the user interface
▪ If you use 1 user interface, you can install it at the indoor unit (for
control close to the indoor unit), or in the room (when used as
room thermostat).
Be careful NOT to pinch the wiring when attaching the
frontplate to the unit.
▪ If you use 2 user interfaces, you can install 1 user interface at the
indoor unit (for control close to the indoor unit) + 1 user interface
in the room (used as room thermostat).
The procedure differs slightly depending on where you install the
user interface.
#
1
At the indoor unit
Connect as shown
in 4A, 4B, 4C or 4D.
(a)
The main user interface is required for operation, but has to
be ordered separately (mandatory option).
4B From the left
4A From the rear
In the room
PCB
Connect the user interface cable to the indoor unit.
PCB
Fix the cable with cable ties to the cable tie mountings.
a
b
1×
a
b
1×
a
b
4C From the top
4D From the top centre
a
a
b
b
X5M
PCB
PCB
X2M
12
1×
1×
a Main user interface(a)
b
b
b Optional user interface
a
b
7.6.9
1
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Notch this part for the wiring to pass through with nippers
etc.
Secure the wiring to the front part of the casing using the
wiring retainer and clamp.
To connect the shut-off valve
Connect the valve control cable to the appropriate terminals as
shown in the illustration below.
Installer reference guide
31
7 Installation
M
1~
NOTICE
M2P
Wiring is different for a NC (normal closed) valve and a NO
(normal open) valve.
M2S
M2S
NO
NC
X5M
X5M
X2M
X5M
34 35
X2M
5 67
5 67
2
2
Fix the cable with cable ties to the cable tie mountings.
7.6.10
X2M
To connect the electrical meters
Fix the cable with cable ties to the cable tie mountings.
7.6.12
1
To connect the alarm output
Connect the alarm output cable to the appropriate terminals as
shown in the illustration below.
INFORMATION
In case of an electrical meter with transistor output, check
the polarity. The positive polarity MUST be connected to
X5M/7 and X5M/9; the negative polarity to X5M/8 and
X5M/10.
1
a
Connect the electrical meters cable to the appropriate terminals
as shown in the illustration below.
A4P
S2S S3S
X5M
X2M
29
a
2
Fix the cable with cable ties to the cable tie mountings.
7.6.13
X5M
X2M
1
6 7 8910
2
To connect the space heating ON/OFF
output
Connect the space heating ON/OFF output cable to the
appropriate terminals as shown in the illustration below.
Fix the cable with cable ties to the cable tie mountings.
7.6.11
1
Installation of EKRP1HB is required.
a
To connect the domestic hot water pump
Connect the domestic hot water pump cable to the appropriate
terminals as shown in the illustration below.
A4P
X5M
X2M
29
a
2
Installer reference guide
32
Installation of EKRP1HB is required.
Fix the cable with cable ties to the cable tie mountings.
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ROTEX HPU ground
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8 Configuration
7.6.14
1
To connect the changeover to external
heat source
Connect the changeover to external heat source cable to the
appropriate terminals as shown in the illustration below.
NL
a
A4P
3
X5M
X2M
a
2
7.7.2
Close the switch box cover.
2
Reinstall the top plate.
3
Reinstall the front panel.
NOTICE
When closing the indoor unit cover, make sure that the
tightening torque does NOT exceed 4.1 N•m.
To connect the power consumption digital
inputs
Connect the power consumption digital inputs cable to the
appropriate terminals as shown in the illustration below.
To close the indoor unit
1
Fix the cable with cable ties to the cable tie mountings.
7.6.15
1
Installation of EKRP1HB is required.
Mount the front panel to the indoor unit.
Configuration
8.1
Overview: Configuration
S6S
S7S
S8S
S9S
8
This chapter describes what you have to do and know to configure
the system after it is installed.
a
Why
If you do NOT configure the system correctly, it might NOT work as
expected. The configuration influences the following:
1 23 4 5
▪ The calculations of the software
▪ What you can see on and do with the user interface
A8P
How
X5M
X2M
You can configure the system using two different methods.
Method
a
Installation of EKRP1AHTA is required.
2
Fix the cable with cable ties to the cable tie mountings.
7.7
Finishing the indoor unit
installation
7.7.1
To fix the user interface cover to the
indoor unit
1
Make sure that the front panel is removed from the indoor unit.
See "7.2.2 To open the indoor unit" on page 23.
2
Plug the user interface cover into the hinges.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Configuring via the
user interface
Description
First time – Quick wizard. When you turn
ON the user interface for the first time (via
the indoor unit), a quick wizard starts to help
you configure the system.
Afterwards. If necessary, you can make
changes to the configuration afterwards.
Configuring via the
PC configurator
You can prepare the configuration off-site on
PC and afterwards upload the configuration
to the system with the PC configurator.
See also: "8.1.1 To connect the PC cable to
the switch box" on page 34.
INFORMATION
When the installer settings are changed, the user interface
will request to confirm. When confirmed, the screen will
shortly turn OFF and "busy" will be displayed for several
seconds.
Installer reference guide
33
8 Configuration
Accessing settings – Legend for tables
3
You can access the installer settings using two different methods.
However, NOT all settings are accessible via both methods. If so,
the corresponding table columns in this chapter are set to N/A (not
applicable).
4
Method
Column in tables
Accessing settings via the breadcrumb in the
menu structure.
#
Accessing settings via the code in the
overview settings.
Code
See also:
▪ "To access the installer settings" on page 34
▪ "8.5 Menu structure: Overview installer settings" on page 54
To connect the PC cable to the switch box
Prerequisite: The EKPCCAB kit is required.
1
Connect the cable with USB connection to your PC.
2
Connect the plug of the cable to X10A on A1P of the switch box
of the indoor unit.
for more than 4 seconds.
Result:
is displayed on the home pages.
If you do NOT press any button for more than 1 hour or press
again for more than 4 seconds, the installer permission level
switches back to End user.
To set the user permission level to Advanced end user
1
Go to the main menu or any of its submenus:
2
Press
.
for more than 4 seconds.
Result: The user permission level switches to Adv. end user.
Additional information is displayed and "+" is added to the menu title.
The user permission level will stay in Adv. end user until set
otherwise.
To set the user permission level to End user
1
8.1.1
Press
Press
for more than 4 seconds.
Result: The user permission level switches to End user. The user
interface will return to the default home screen.
To modify an overview setting
Example: Modify [1‑01] from 15 to 20.
> Installer settings > Overview settings.
1
Go to [A.8]:
2
Go to the corresponding screen of the first part of the setting by
and
button.
using the
INFORMATION
An additional 0-digit is added to the first part of the setting
when you access the codes in the overview settings.
A1P
Example: [1‑01]: "1" will result in "01".
X10A
Overview settings
X5M
3
X2M
01
00 00 01 15 02 00 03 00
04
05
06
07
08
09
0a
0b
0c
0d
0e
0f
Pay special attention to the position of the plug!
Confirm
3
Adjust
Scroll
Go to the corresponding second part of the setting by using the
and
button.
H JST
Overview settings
2
3
4
5
01
00 00 01 15 02 00 03 00
04
05
06
07
08
09
0a
0b
0c
0d
0e
0f
Confirm
Adjust
Scroll
Result: The value to be modified is now highlighted.
4
Modify the value by using the
and
button.
Overview settings
8.1.2
To access the most used commands
To access the installer settings
1
Set the user permission level to Installer.
2
Go to [A]:
> Installer settings.
To access the overview settings
1
Set the user permission level to Installer.
2
Go to [A.8]:
01
00 00 01 20 02 00 03 00
04
05
06
07
08
09
0a
0b
0c
0d
0e
0f
Confirm
Adjust
Scroll
5
Repeat previous steps if you have to modify other settings.
6
Push
7
At installer settings menu, press
to confirm the modification of the parameter.
to confirm the settings.
> Installer settings > Overview settings.
To set the user permission level to Installer
1
Set the user permission level to Adv. end user.
2
Go to [6.4]:
> Information > User permission level.
Installer reference guide
34
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
7
Installer settings
The system will restart.
Confirm the selection on the screen by pushing
and all data
(languages, schedules etc.) will be synchronised from the
selected source user interface to the other one.
INFORMATION
OK
Cancel
Confirm
▪ During the copying, both controllers will NOT allow
operation.
Adjust
▪ The copy operation can take up until 90 minutes.
Result: The system will restart.
8.1.3
If a second user interface is connected, the installer must first
proceed below instructions for the proper configuration of the 2 user
interfaces.
This procedure offers you also the possibility to copy the language
set from one user interface to the other one: e.g. from RKRUCBL2 to
RKRUCBL1.
1
▪ It is recommended to change installer settings, or the
configuration of the unit, on the main user interface. If
not, it can take up to 5 minutes before these changes
are visible in the menu structure.
To copy the system settings from the first
to the second user interface
When power is turned on for the first time, both user interfaces
display:
8
Your system is now set to be operated by the 2 user interfaces.
8.1.4
See "8.1.3 To copy the system settings from the first to the second
user interface" on page 35.
8.1.5
Tue 15:10
U5:Auto address
To copy the language set from the first to
the second user interface
Quick wizard: Set the system layout after
first power ON
After first power ON of the system, you are guided on the user
interface to do initial settings:
▪ language,
▪ date,
Push 4 sec. to continue
▪ time,
2
Push
for 4 seconds on the user interface on which you want
to proceed to the quick wizard. This user interface is now the
main user interface.
INFORMATION
During the quick wizard, the second user interface displays
Busy and will NOT be possible to operate.
3
The quick wizard will guide you.
4
For proper operation of the system, the local data on the two
user interfaces must be the same. If this is NOT the case, both
user interfaces will display:
Synchronization
Data difference detected.
Please select action:
Send data
1
At power ON, the quick wizard starts as long as the system
layout was NOT confirmed yet, by setting the language.
Language
Select the desired language
Confirm
2
Set the current date and time.
Tue 1 Jan 2013
Confirm
Start copy
Are you sure you want to
start the copy operation?
OK
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Adjust
Scroll
Time
What is the current time?
The user interface requests confirmation if you are sure to
proceed.
Confirm
Adjust
Date
What is the date today?
Select the required action:
▪ Send data: the user interface you are operating contains the
correct data and the data on the other user interface will be
overwritten.
▪ Receive data: the user interface you are operating does
NOT contain the correct data and the data on the other user
interface will be used to overwrite.
6
By confirming the system layout, you can proceed with the
installation and commissioning of the system.
Adjust
Confirm
5
▪ system layout.
00 : 00
Confirm
3
Adjust
Scroll
Set the system layout settings: Standard, Options, Capacities.
For more details, see "8.2 Basic configuration" on page 36.
Cancel
Adjust
Installer reference guide
35
8 Configuration
A.2
System layout
Standard
Options
Capacities
Confirm layout
Select
4
#
1
[A.2.1.B]
Code
N/A
Description
Only if there are 2 user interfaces (1
installed in the room, 1 installed at the
indoor unit):
Scroll
After configuration, select Confirm layout and press
.
Confirm layout
Please confirm the system
layout. The system will
restart and will be ready for
first startup.
Confirm
5
b
Cancel
OK
a
Adjust
The user interface re-initialises and you can proceed the
installation by setting the other applicable settings and
commissioning of the system.
When the installer settings are changed, the system will request to
confirm. When confirmation is complete, the screen will shortly turn
OFF and "busy" will be displayed for several seconds.
8.2
Basic configuration
8.2.1
Quick wizard: Language / time and date
#
Code
▪ b: In room as room thermostat
User interface location:
▪ 0 (At unit): the other user interface is
automatically set to In room and if RT
control is selected act as room
thermostat.
Description
[A.1]
N/A
Language
[1]
N/A
Time and date
8.2.2
▪ a: At unit
▪ 1 (In room)(default): the other user
interface is automatically set to At unit
and if RT control is selected to act as
room thermostat.
Quick wizard: Standard
Space heating settings
The system can heat up a space. Depending on the type of
application, the space heating must be made accordingly.
#
[A.2.1.7]
Code
[C-07]
Description
Unit control method:
▪ 0
(LWT
control)(default):
Unit
operation is decided based on the
leaving water temperature regardless
the actual room temperature and/or
heating demand of the room.
▪ 1 (Ext RT control): Unit operation is
decided by the external thermostat or
equivalent (e.g. heat pump convector).
#
[A.2.1.8]
Code
[7-02]
Description
The system can supply leaving water to
up to 2 water temperature zones. During
configuration, the number of water zones
must be set.
Number of LWT zones:
▪ 0 (1 LWT zone)(default): Only 1
leaving water temperature zone. This
zone is called the main leaving water
temperature zone.
▪ 2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
a
▪ a: Main LWT zone
continued >>
Installer reference guide
36
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
#
[A.2.1.8]
Code
[7-02]
#
Description
[A.2.1.9]
<< continuation
Code
[F-0D]
Description
<< continuation
▪ 1 (Sample)(default): The pump is ON
when there is heating demand and the
leaving water temperature has NOT
reached the desired temperature yet.
When thermo OFF condition occurs,
the pump runs every 5 minutes to
check the water temperature and
demand
heating
if
necessary.
Remark: Sample is NOT available in
external room thermostat control or
room thermostat control.
a
c
b
▪ 1 (2 LWT zones): 2 leaving water
temperature zones. The zone with the
lowest leaving water temperature (in
heating) is called the main leaving
water temperature zone. The zone
with the highest leaving water
temperature (in heating) is called the
additional leaving water temperature
zone. In practice, the main leaving
water temperature zone consists of
the higher load heat emitters and a
mixing station is installed to achieve
the desired leaving water temperature.
a
e
d
g
b
f
c
▪ a: Space heating control (user
interface)
▪ b: OFF
b
▪ c: On
▪ d: LWT temperature
▪ e: Actual
▪ f: Desired
▪ g: Pump operation
continued >>
#
▪ a: Add LWT zone
[A.2.1.9]
▪ b: Main LWT zone
#
[A.2.1.9]
Code
[F-0D]
Description
When the space heating control is OFF
by the user interface, the pump is always
OFF. When the space heating control is
On, you can select the desired pump
operation mode (only applicable during
space heating)
Pump operation mode:
Code
[F-0D]
Description
<< continuation
▪ 2 (Request): Pump operation based
on request. Example: Using a room
thermostat creates thermo ON/OFF
condition. When there is no such
demand, the pump is OFF. Remark:
Request is NOT available in leaving
water temperature control.
a
b
c
d
▪ 0 (Continuous): Continuous pump
operation, regardless of thermo ON or
OFF condition. Remark: continuous
pump operation requires more energy
than sample or request pump
operation.
a
b
c
b
e
b
b
c
▪ a: Space heating control (user
interface)
▪ b: OFF
▪ c: On
c
d
▪ d: Heating demand (by ext RT or
RT)
▪ a: Space heating control (user
interface)
▪ e: Pump operation
Brine freezing temperature
▪ b: OFF
▪ c: On
▪ d: Pump operation
continued >>
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
c
Depending on the type and concentration of the anti-freeze in the
brine system, the freezing temperature will differ. The following
parameters set the units freeze up prevention limit temperature. To
allow for temperature measurement tolerances, the brine
concentration MUST resist to a lower temperature than the defined
setting.
Installer reference guide
37
8 Configuration
General rule: the units freeze up prevention limit temperature MUST
be 10°C lower than the minimum possible brine inlet temperature for
the unit.
#
Code
[A.2.2.A]
[D-02]
Example: When the minimum possible brine inlet temperature in a
certain application is 0°C, then the unit freeze up prevention limit
temperature MUST be set to –10°C or lower. Result will be that the
brine mixture may NOT freeze above that temperature. To prevent
freezing of the unit, check the type and concentration of the brine
carefully.
Description
The indoor unit offers the possibility to
connect a field supplied domestic hot
water pump (On/OFF type). Depending
on the installation and configuration on
the user interface, we distinguish its
functionality.
DHW pump:
▪ 0 (No)(default): NOT installed.
#
[A.6.9]
Code
[A‑04]
Description
▪ 1 (Secondary rtrn): Installed for instant
hot water when water is tapped. The
end-user sets the operation timing
(weekly schedule time) of the
domestic hot water pump when it
should run. Control of this pump is
possible through the indoor unit.
Brine freezeup temp
▪ 0: 0°C
▪ 1: –2°C
▪ 2: –4°C
▪ 3: –6°C
▪ 2 (Disinf. shunt): Installed for
disinfection. It runs when the
disinfection function of the domestic
hot water tank is running. No further
settings are needed.
▪ 4: –8°C
▪ 5: –10°C
▪ 6: –12°C
▪ 7 (default): –14°C
See also illustrations below.
NOTICE
Domestic hot water pump installed for…
The setting brine freezing temperature can be modified
and the read out is correct in [A.6.9] Brine freezeup temp
ONLY after having accessed menu [A.8] Overview
settings.
Instant hot water
c
a
Code
[A‑03]
Description
[A.2.2.4]
Quick wizard: Options
Domestic hot water settings
Following settings must be made accordingly.
Code
[E-05]
Description
DHW operation:
▪ 0 (No): N/A
▪ 1 (Yes): Installed. Do NOT change this
setting.
Installer reference guide
38
f
e
g
Indoor unit
Tank
Domestic hot water pump (field supply)
Heater element (field supply)
Non‑return valve (field supply)
Shower (field supply)
Cold water
See "5 Application guidelines" on page 8.
#
▪ 1: boost
N/A
d
If an external room thermostat is used, the external room
thermostat will control the room frost protection. However,
the room frost protection is only possible if the leaving
water temperature control on the unit's user interface is
turned ON.
Compressor frequency
▪ 0 (default): normal
#
b
NOTICE
For systems where higher capacity is required, the compressor
frequency can be increased. Remark that higher capacity results in
higher sound level.
8.2.3
c
a
Thermostats and external sensors
Capacity boost
#
g
a
b
c
d
e
f
g
▪ error "U4" appears on the user interface,
N/A
f
b
This setting can ONLY be modified and/or saved and the
read out is ONLY correct if the communication between
hydro module and compressor module is present. The
communication between hydro module and compressor
module is NOT guaranteed and/or applicable if:
▪ the heat pump module is connected to preferential kWh
rate power supply where power supply is interrupted
and preferential kWh rate power supply is activated.
Disinfection
Code
[C-05]
Description
Contact type main
In external room thermostat control, the
contact type of the optional room
thermostat or heat pump convector for
the main leaving water temperature zone
must be set. See "5 Application
guidelines" on page 8.
▪ 1 (Thermo ON/OFF): The connected
external room thermostat or heat
pump convector sends the heating
demand by the same signal as it is
connected to only 1 digital input
(preserved for the main leaving water
temperature zone) on the indoor unit
(X2M/1). Select this value in case of a
connection to the heat pump
convector (RFWXV).
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
#
[A.2.2.5]
Code
[C-06]
Description
Contact type add.
In external room thermostat control with
2 leaving water temperature zones, the
type of the optional room thermostat for
the additional leaving water temperature
zone must be set. See "5 Application
guidelines" on page 8.
Demand PCB
The demand PCB is used to enable the power consumption control
by digital inputs. See "5 Application guidelines" on page 8.
#
[A.2.2.7]
Code
[D-04]
[C-08]
Demand PCB
Indicates if the optional demand PCB is
installed.
▪ 0 (No)(default)
▪ 1 (Thermo ON/OFF): See Contact
type main. Connected on the indoor
unit (X2M/1a).
[A.2.2.B]
Description
▪ 1 (Pwr consmp ctrl)
External sensor
Energy metering
When an optional external ambient
sensor is connected, the type of the
sensor must be set. See "5 Application
guidelines" on page 8.
When energy metering is performed by the use of external power
meters, configure the settings as described below. Select the pulse
frequency output of each power meter in accordance with the power
meter specifications. It is possible to connect (up to 2) power meters
with different pulse frequencies. When only 1 or no power meter is
used, select No to indicate the corresponding pulse input is NOT
used.
▪ 0 (No)(default): NOT installed. The
thermistor in the user interface and in
the heat pump module are used for
measurement.
▪ 2 (Room sensor): Installed. The
temperature sensor in the user
interface is NOT used anymore.
Remark: This value has only meaning
in room thermostat control.
#
[A.2.2.8]
Code
[D‑08]
Description
Optional external kWh meter 1:
▪ 0 (No): NOT installed
▪ 1: Installed (0.1 pulse/kWh)
▪ 2: Installed (1 pulse/kWh)
Digital I/O PCB
▪ 3: Installed (10 pulse/kWh)
Modification of these settings is only needed when the optional
digital I/O PCB is installed. The digital I/O PCB has multiple
functionality which need to be configured. See "5 Application
guidelines" on page 8.
▪ 4: Installed (100 pulse/kWh)
#
[A.2.2.6.1]
Code
[C-02]
▪ 5: Installed (1000 pulse/kWh)
[A.2.2.9]
[D‑09]
▪ 0 (No): NOT installed
Description
▪ 1: Installed (0.1 pulse/kWh)
Ext. backup heat src
▪ 2: Installed (1 pulse/kWh)
Indicates if the space heating is also
performed by means of another heat
source than the system.
▪ 3: Installed (10 pulse/kWh)
▪ 4: Installed (100 pulse/kWh)
▪ 0 (No)(default): NOT installed.
▪ 1 (Bivalent): Installed. The auxiliary
boiler (gasboiler, oil burner) will
operate when the outdoor ambient
temperature is low. During the bivalent
operation, the heat pump is turned
OFF. Set this value in case an
auxililary boiler is used. See
"5 Application guidelines" on page 8.
[A.2.2.6.3]
[C-09]
Alarm output
Indicates the logic of the alarm output on
the digital I/O PCB during
malfunctioning.
▪ 0 (Normally open)(default): The alarm
output will be powered when an alarm
occurs. By setting this value, a
distinction
is
made
between
malfunctioning and detection of a
power failure of the unit.
▪ 5: Installed (1000 pulse/kWh)
8.2.4
#
Alarm
No alarm
0 (default)
Closed output
Open output
1
Open output
Closed output
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
No power
supply to unit
Open output
Code
[A.2.3.2]
[6-03]
[A.2.3.3]
[6-04]
Description
BUH: step 1: The capacity of the first
step of the backup heater at nominal
voltage. Nominal value 3 kW. Default:
3 kW.
Range: 0~10 kW (in steps of 0.2 kW)
BUH: step 2: The capacity difference
between the second and first step of the
backup heater. Default: 3 kW.
Range: 0~10 kW (in steps of 0.2 kW)
8.2.5
Alarm output logic
Quick wizard: Capacities (energy
metering)
The capacities of all electrical heaters must be set for the energy
metering and/or power consumption control feature to work properly.
When measuring the resistance value of each heater, you can set
the exact heater capacity and this will lead to more accurate energy
data.
▪ 1 (Normally closed): The alarm output
will NOT be powered when an alarm
occurs.
[C-09]
Optional external kWh meter 2:
Space heating control
The basic required settings in order to configure the space heating of
your system are described in this chapter. The weather-dependent
installer settings define the parameters for the weather-dependent
operation of the unit. When weather-dependent operation is active,
the water temperature is determined automatically depending on the
Installer reference guide
39
8 Configuration
outdoor temperature. Low outdoor temperatures will result in warmer
water and vice versa. During weather-dependent operation, the user
has the possibility to shift up or down the target water temperature
by a maximum of 5°C.
#
[7.7.1.1]
Code
[1-00]
[1-01]
[1-03]
Leaving water temperature: Main zone
#
Code
N/A
Tt
[1-02]
See the user reference guide and/or operation manual for more
details about this function.
[A.3.1.1.1]
Description
Set weather-dependent heating:
[1-02]
[1-03]
Description
LWT setpoint mode:
[1-00]
▪ Fixed: The desired leaving water
temperature is:
[1-01]
Ta
▪ Tt: Target leaving water temperature
(main)
▪ NOT weather-dependent (i.e. does
NOT depend on the outdoor
ambient temperature)
▪ Ta: Outdoor temperature
continued >>
▪ fixed in time (i.e., NOT scheduled)
▪ Weather dep. (default): The desired
leaving water temperature is:
#
[7.7.1.1]
▪ weather-dependent (i.e. depends
on
the
outdoor
ambient
temperature)
Code
<< continuation
[1-01]
▪ [1-00]:
Low
outdoor
ambient
temperature. –40°C~+5°C (default: –
20°C)
[1-02]
[1-03]
▪ fixed in time (i.e., NOT scheduled)
continued >>
#
[A.3.1.1.1]
Code
N/A
▪ Fixed/scheduled: The desired leaving
water temperature is:
▪ NOT weather-dependent (i.e.,
does NOT depend on the outdoor
ambient temperature)
▪ according
a
schedule.
The
scheduled actions consists of
desired shift actions, either preset
or custom.
▪ WD/scheduled: The desired leaving
water temperature is:
Remark: This value can only be
set in leaving water temperature
control.
ambient
(default:
▪ [1-03]:
Desired
leaving
water
temperature when the outdoor
temperature equals or rises above
the high ambient temperature.
Range: [9‑01]°C~min(45, [9‑00])°C
(default: 25°C).
Note: This value should be lower
than [1-02] as for high outdoor
temperatures less warm water is
required.
Remark: This value can only be
set in leaving water temperature
control.
▪ according
a
schedule.
The
scheduled actions consists of
desired
leaving
water
temperatures either preset or
custom
▪ [1-01]:
High
outdoor
temperature. 10°C~25°C
15°C)
▪ [1-02]:
Desired
leaving
water
temperature when the outdoor
temperature equals or drops below
the low ambient temperature.
Range: [9‑01]°C~[9‑00]°C (default:
60°C).
Note: This value should be higher
than [1-03] as for low outdoor
temperatures warmer water is
required.
Description
<< continuation
▪ weather-dependent (i.e., does
depend on the outdoor ambient
temperature)
Description
[1-00]
Leaving water temperature: Additional zone
Only applicable if 2 leaving water temperature zones are present.
#
[A.3.1.2.1]
Code
N/A
Description
LWT setpoint mode:
▪ Fixed: The desired leaving water
temperature is:
▪ NOT weather-dependent (i.e. does
NOT depend on the outdoor
ambient temperature)
▪ fixed in time (i.e., NOT scheduled)
▪ Weather dep. (default): The desired
leaving water temperature is:
▪ weather-dependent (i.e. depends
on
the
outdoor
ambient
temperature)
▪ fixed in time (i.e., NOT scheduled)
continued >>
Installer reference guide
40
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
#
[A.3.1.2.1]
Code
N/A
#
Description
Code
[7.7.2.1]
<< continuation
▪ Fixed/scheduled: The desired leaving
water temperature is:
<< continuation
[0-01]
▪ [0-03]:
Low
outdoor
ambient
temperature. –40°C~+5°C (default: –
20°C)
[0-02]
▪ NOT weather-dependent (i.e.,
does NOT depend on the outdoor
ambient temperature)
[0-03]
▪ [0-02]:
High
outdoor
temperature. 10°C~25°C
15°C)
▪ according
a
schedule.
The
scheduled actions are On or OFF.
▪ WD/scheduled: The desired leaving
water temperature is:
▪ weather-dependent (i.e., does
depend on the outdoor ambient
temperature)
▪ [0-00]:
Desired
leaving
water
temperature when the outdoor
temperature equals or rises above
the high ambient temperature.
Range: [9‑05]°C~min(45, [9‑06])°C
(default: 25°C).
Note: This value should be lower
than [0-01] as for high outdoor
temperatures less warm water is
required.
▪ according
a
schedule.
The
scheduled actions are On or OFF.
Remark: This value can only be
set in leaving water temperature
control.
#
Code
[0-00]
[0-01]
Description
Set weather-dependent heating:
Tt
Leaving water temperature: Delta T source
[0-02]
[0-03]
ambient
(default:
▪ [0-01]:
Desired
leaving
water
temperature when the outdoor
temperature equals or drops below
the low ambient temperature.
Range: [9‑05]°C~[9‑06]°C (default:
60°C).
Note: This value should be higher
than [0-00] as for low outdoor
temperatures warmer water is
required.
Remark: This value can only be
set in leaving water temperature
control.
[7.7.2.1]
Description
[0-00]
[0-01]
[0-00]
[0-03]
[0-02]
Ta
▪ Tt: Target leaving water temperature
(additional)
▪ Ta: Outdoor temperature
Temperature difference for entering and leaving water. The unit is
designed to support under floor loops operation. The recommended
leaving water temperature (set by the user interface) for under floor
loops is 35°C. In such case, the unit will be controlled to realize a
temperature difference of 5°C which means that the entering water
to the unit is around 30°C. Depending on the installed application
(radiators, heat pump convector, under floor loops) or situation, it
can be possible to change the difference between entering and
leaving water temperature. Note that the pump will regulate its flow
to keep the Δt.
continued >>
#
Code
[A.3.1.3.1]
[9-09]
Description
Heating: required temperature
difference between entering and
leaving water. Range: 3°C~10°C (in
steps of 1°C; default value: 8°C).
Specific for installations that require higher water temperatures (e.g.,
radiators)
For leaving water temperature set point>55°C
As soon as the leaving water temperature set point is >55°C, Δt is
no longer a constant determined by field setting [9‑09] (default 8°C),
but linear in function of the set point.
°C
Δt
14
4
55
65
Δt
Tt
Tt
Temperature difference
Target leaving water temperature (main)
For leaving water temperature set point>60°C
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
41
8 Configuration
Up to leaving water temperature set point 60°C, the heat pump can
cover this temperature. If you need a leaving water temperature
set points >60°C, the backup heater will assist to reach the
requested temperature. Assistance by backup heater is ONLY
possible when the ambient temperature is lower than the equilibrium
temperature.
Tt
b
a
#
Code
N/A
[8-06]
0°C~10°C (default: 3°C)
Requires modulation to be enabled.
d
e
c
≤65
Description
Leaving water temperature maximum
modulation:
This is the value by which the desired
leaving water temperature is increased
or lowered.
f
INFORMATION
2
≤60
1
a
b
c
d
e
f
1
2
3
Tt
When leaving water temperature modulation is enabled,
the weather‑dependent curve needs to be set to a higher
position than [8-06] plus the minimum leaving water
temperature setpoint required to reach a stable condition
on the comfort setpoint for the room. To increase
efficiency, modulation can lower the leaving water setpoint.
By setting the weather‑dependent curve to a higher
position, it cannot drop below the minimum setpoint. Refer
to the illustration below.
3
Water from heat emitters
Condenser
Leaving water from condenser
Backup heater
Leaving water
Water flow
By heat pump
By backup heater
Temperature difference
Target leaving water temperature (main)
Tt
+[8-06]
−[8-06]
To minimize the power consumption, the heat pump ALWAYS tries
to reach max possible target leaving water temperature of 60°C. The
remaining part is done by the backup heater.
a
b
Leaving water temperature: Modulation
Ta
Only applicable in case of room thermostat control. When using the
room thermostat functionality, the customer needs to set the desired
room temperature. The unit will supply hot water to the heat emitters
and the room will be heated. Additionally, also the desired leaving
water temperature must be configured: when turning on the
modulation, the desired leaving water temperature will be calculated
automatically by the unit (based on the preset temperatures, if
weather-dependent is selected, modulation will be done based on
the desired weather-dependent temperatures); when turning off the
modulation, you can set the desired leaving water temperature on
the user interface. Moreover, with the modulation turned on, the
desired leaving water temperature is lowered or raised in function of
the desired room temperature and the difference between the actual
and the desired room temperature. This results in:
▪ stable room temperatures exactly
temperature (higher comfort level)
matching
the
desired
a
b
Leaving water temperature: Emitter type
Only applicable in case of room thermostat control. Depending on
the system water volume and the heat emitters type, the heat up of a
space can take longer. This setting can compensate for a slow or a
quick heating system during the heat up cycle.
Note: The setting of the emitter type will influence the maximum
modulation of the desired leaving water temperature and the
possibility for usage of the automatic heating changeover based on
the indoor ambient temperature.
Therefore it is important to set this correctly.
#
▪ less On/OFF cycles (lower noise level, higher comfort and higher
efficiency)
[A.3.1.1.7]
#
Code
[8-05]
Description
▪ 1 (Yes): enabled. The leaving water
temperature is calculated according
to the difference between the desired
and the actual room temperature.
This creates a better match between
the capacity of the heat pump and
the actual required capacity, and
results in less start/stop cycles and a
more economic operation.
Note: The desired leaving water
temperature can only be read out on
the user interface
Installer reference guide
42
Description
Emitter type:
▪ 0 (Quick)(default)
Example: Small water volume and
fan coils.
Modulated LWT:
▪ 0 (No) (default): disabled.
Note: The desired leaving water
temperature needs to be set on the
user interface.
Code
[9-0B]
Reaction time of the system:
▪ water temperatures as low as possible to match the desired
temperature (higher efficiency)
[A.3.1.1.5]
Weather-dependent curve
Minimum leaving water temperature setpoint required to
reach a stable condition on the comfort setpoint for the
room.
▪ 1 (Slow)
Example: Large water volume, floor
heating loops.
8.2.6
Domestic hot water control
Only applicable in case an optional domestic hot water tank is
installed.
Configuring the desired tank temperature
The domestic hot water can be prepared in 3 different ways. They
differ from each other by the way the desired tank temperature is set
and how the unit acts upon it.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
#
[A.4.1]
Code
[6-0D]
Description
Domestic hot water Type:
▪ 0 (Reheat only): Only reheat operation
is allowed.
▪ 1 (Reheat + sched.)(default): The
domestic hot water tank is heated
according to a schedule and between
the scheduled heatup cycles, reheat
operation is allowed.
Preset values make it easy to use the same value in the schedule or
to adjust the desired leaving water temperature according to the
room temperature (see modulation). If you later want to change the
value, you only have to do it in one place. Depending on whether the
desired leaving water temperature is weather dependent or not, the
absolute desired leaving water temperature should be specified or
the desired shift values.
NOTICE
The preset leaving water temperatures are ONLY
applicable for the main zone, as the schedule for the
additional zone consists of On/OFF actions.
▪ 2 (Scheduled only): The domestic hot
water tank can ONLY be heated
according to a schedule.
NOTICE
Select preset leaving water temperatures in accordance
with the design and selected heat emitters to ensure the
balance between desired room and leaving water
temperatures.
See "8.3.2 Domestic hot water control: advanced" on page 46 for
more details.
INFORMATION
There is a risk of space heating capacity shortage/comfort
problem (in case of frequent domestic hot water operation,
frequent and long space heating interruption will happen)
when selecting [6‑0D]=0 ([A.4.1] Domestic hot water
Type=Reheat only).
#
Code
Preset leaving water temperature for the main leaving water
temperature zone in case of NOT weather dependent
[7.4.2.1]
[8-09]
[7.4.2.2]
[8-0A]
Maximum DHW temperature setpoint
INFORMATION
[A.4.5]
INFORMATION
[7.4.2.6]
[6-0E]
Description
Maximum setpoint
The maximum temperature that users
can select for the domestic hot water.
You can use this setting to limit the
temperature at the hot water taps.
Range: 40°C~60°C (default: 60°C)
The maximum temperature is NOT
applicable during disinfection function.
See disinfection function.
8.2.7
#
[6.3.2]
[9‑01]°C~[9‑00]°C (default: 45°C)
[7.4.2.5]
Limit the maximum hot water temperature according to the
applicable legislation.
Contact/helpdesk number
Code
N/A
Description
Number that users can call in case of
problems.
8.3
Advanced configuration/
optimization
8.3.1
Space heating operation: advanced
Preset leaving water temperature
You can define preset leaving water temperatures:
▪ economic (denotes the desired leaving water temperature which
results in the lowest energy consumption)
▪ comfort (denotes the desired leaving water temperature which
results in the highest energy consumption).
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Eco (heating)
Preset leaving water temperature (shift value) for the main leaving
water temperature zone in case of weather dependent
During disinfection of the domestic hot water tank, the
DHW temperature can exceed this maximum temperature.
Code
Comfort (heating)
[9‑01]°C~[9‑00]°C (default: 55°C)
The maximum temperature that users can select for the domestic
hot water. You can use this setting to limit the temperatures at the
hot water taps.
#
Description
N/A
Comfort (heating)
–10°C~+10°C (default: 0°C)
N/A
Eco (heating)
–10°C~+10°C (default: –2°C)
Temperature ranges (leaving water temperatures)
The purpose of this setting is to prevent selecting a wrong (i.e. too
hot) leaving water temperature. Thereto the available desired
heating temperature range can be configured.
NOTICE
In case of a floor heating application it is important to limit
the maximum leaving water temperature at heating
operation according to the specifications of the floor
heating installation.
NOTICE
▪ When adjusting the leaving water temperature ranges,
all desired leaving water temperatures are also
adjusted to guarantee they are between the limits.
▪ Always balance between the desired leaving water
temperature with the desired room temperature and/or
the capacity (according to the design and selection of
the heat emitters). The desired leaving water
temperature is the result of several settings (preset
values, shift values, weather dependent curves,
modulation). As a result, too high or too low leaving
water temperatures could occur which lead to
overtemperatures or capacity shortage. By limiting the
leaving water temperature range to adequate values
(depending on the heat emitter), such situations can be
avoided.
Example: Set the minimum leaving water temperature to 28°C to
avoid NOT to be able to heat up the room: leaving water
temperatures must be sufficiently higher than the room temperatures
(in heating).
Installer reference guide
43
8 Configuration
Leaving water temperature maximum modulation
#
Code
Description
Leaving water temperature range for the main leaving water
temperature zone (= the leaving water temperature zone with the
lowest leaving water temperature in heating operation)
[A.3.1.1.2.2] [9-00]
[A.3.1.1.2.1] [9-01]
#
N/A
Temperature ranges (room temperature)
Leaving water temperature range for the additional leaving water
temperature zone (= the leaving water temperature zone with the
highest leaving water temperature in heating operation)
[8-06]
NOTICE
When adjusting the room temperature ranges, all desired
room temperatures are also adjusted to guarantee they are
between the limits.
Maximum temp (heating)
Minimum temp (heating)
15°C~37°C (default: 24°C)
#
Code
[A.3.2.1.2]
[3-06]
This function defines how much the water temperature may rise
above the desired leaving water temperature before the compressor
stops. The compressor will startup again when the leaving water
temperature drops below the desired leaving water temperature.
[A.3.2.1.1]
[3-07]
N/A
Description
[9-04]
1°C~4°C (default: 1°C)
Leaving water temperature compensation around 0°C
In heating operation, the desired leaving water temperature is locally
increased around an outdoor temperature of 0°C. This
compensation can be selected when using an absolute or a weather
dependent desired temperature, this compensation can be selected
(see illustration below). Use this setting to compensate for possible
heat losses of the building when the outdoor temperature is around
0°C (e.g. in cold region countries).
0°C
TA
0°C
a
#
TA
b
a
b
TA
Tt
N/A
Room temperature step
Only applicable in room thermostat control and when the
temperature is displayed in °C.
#
Code
[A.3.2.4]
N/A
Absolute desired LWT
Weather dependent desired LWT
Ambient temperature (°C)
Desired leaving water temperature
Code
[D-03]
Description
Room temp. step
▪ 1°C (default). The desired room
temperature on the user interface is
settable per 1°C.
▪ 0.5°C. The desired room temperature
on the user interface is settable per
0.5°C. The actual room temperature is
displayed with an accuracy of 0.1°C.
Room temperature hysteresis
R
R
Minimum temp (heating)
12°C~18°C (default: 12°C)
L
L
Maximum temp (heating)
18°C~30°C (default: 30°C)
Tt
Tt
Description
Room temp. range
Leaving water temperature overshoot temperature
Code
0°C~10°C (default: 3°C)
Only applicable in room thermostat control. In order to save energy
by preventing overheating the room, you can limit the range of the
room temperature.
37°C~65°C (default: 65°C)
#
Description
37°C~65°C (default: 65°C)
15°C~37°C (default: 24°C)
[A.3.1.2.2.1] [9-05]
Code
Maximum temp (heating)
Minimum temp (heating)
[A.3.1.2.2.2] [9-06]
Only applicable in room thermostat control and when modulation is
enabled. The maximum modulation (=variance) on the desired
leaving water temperature decided on the difference between the
actual and desired room temperature, e.g. 3°C modulation means
the desired leaving water temperature can be increased or lowered
by 3°C. Increasing the modulation results in better performance (less
On/OFF, faster heat up), but note that depending on the heat
emitter, there must always be a balance (refer to the design and
selection of the heat emitters) between the desired leaving water
temperature and the desired room temperature.
Description
Only applicable in case of room thermostat control. The hysteresis
band around the desired room temperature is settable. ROTEX
recommends NOT to change the room temperature hysteresis as it
is set for an optimal use of the system.
a
b
c
[9-0C]
▪ 0 (disabled) (default)
d
▪ 1 (enabled) L=2°C,
R=4°C (−2°C<TA<2°C)
a
b
c
d
▪ 2 (enabled) L=4°C,
R=4°C (−2°C<TA<2°C)
Room temperature
Actual room temperature
Desired room temperature
Time
▪ 3 (enabled) L=2°C,
R=8°C (−4°C<TA<4°C)
N/A
▪ 4 (enabled) L=4°C,
R=8°C (−4°C<TA<4°C)
Room temperature offset
#
Code
[9-0C]
Description
1°C~6°C (default: 1°C)
Only applicable in case of room thermostat control. You can
calibrate the (external) room temperature sensor. It is possible to
give an offset to the room thermistor value measured by the user
Installer reference guide
44
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
interface or by the external room sensor. The settings can be used
to compensate for situations where the user interface or external
room sensor cannot be installed on the ideal installation location
(see installation manual and/or installer reference guide).
#
Code
Description
Room temp. offset: Offset on the actual room temperature
measured on the user interface sensor.
[A.3.2.2]
[2-0A]
[2-09]
If Emergency is set to Manual ([A.5.1.2]=0), and the unit is
triggered to start emergency operation, the user interface
will ask confirmation before starting. Room frost protection
is active even if the user does NOT confirm emergency
operation.
[C‑07]=1: external room thermostat control
–5°C~5°C, step 0.5°C (default: 0°C)
Ext. room sensor offset: Only applicable if the external room sensor
option is installed and configured (see [C-08])
[A.3.2.3]
NOTICE
–5°C~5°C, step 0.5°C (default: 0°C)
Under external room thermostat control, room frost protection is
guaranteed by the external room thermostat, provided that the
leaving water temperature home page is ON on the user interface,
and the auto emergency setting ([A.5.1.2]) is set to "1".
Additionally, limited frost protection by the unit is possible:
Room frost protection
Room frost protection prevents the room from getting too cold. This
setting behaves differently depending on the set unit control method
([C‑07]). Perform actions according to the table below:
Unit control method ([C‑07])
Room thermostat control
([C‑07]=2)
In case of…
One leaving water temperature
zone
Room frost protection
Allow for the room thermostat to
take care of room frost
protection:
▪ Set [2‑06] to "1"
▪ Set
the
room
temperature ([2‑05]).
antifrost
▪ Turn ON the leaving water
temperature home page.
▪ Set auto emergency ([A.5.1.2])
to "1".
Room frost protection is NOT
guaranteed.
INFORMATION
▪ When the leaving water
temperature home page is ON
and
the
external
room
thermostat is "Thermo ON",
then room frost protection is
guaranteed by the normal
logic.
If an U4 error occurs, room frost protection is NOT
guaranteed.
Refer to the sections below for detailed information on room frost
protection in relation to the applicable unit control method.
[C‑07]=2: room thermostat control
Under room thermostat control, room frost protection is guaranteed,
even if the room temperature home page is OFF on the user
interface. When room frost protection ([2‑06]) is enabled and the
room temperature drops below the room antifrost temperature
([2‑05]), the unit will supply leaving water to the heat emitters to heat
up the room again.
#
N/A
Code
[2-06]
Two leaving water temperature
zones
Description
Room frost protection
▪ 0: disabled (default)
[2-05]
Room antifrost temperature
4°C~16°C (default: 12°C)
INFORMATION
If an U5 error occurs:
▪ when 1 user interface is connected, room frost
protection is NOT guaranteed,
▪ when 2 user interfaces are connected and the second
user interface used for room temperature control is
disconnected (due to miswiring, damage of the cable),
then room frost protection is NOT guaranteed.
▪ When the leaving water
temperature home page is
OFF, and the outdoor ambient
temperature drops below 4°C,
then the unit will supply
leaving water to the heat
emitters to heat up the room
again, and the leaving water
temperature setpoint will be
lowered by 5°C.
▪ When the leaving water
temperature home page is ON,
the
outdoor
ambient
temperature drops below 4°C,
then the unit will supply
leaving water to the heat
emitters to heat up the room
again, and the leaving water
temperature setpoint will be
lowered by 5°C.
▪ 1: enabled
N/A
▪ When the leaving water
temperature home page is
OFF and the outdoor ambient
temperature drops below 4°C,
then the unit will supply
leaving water to the heat
emitters to heat up the room
again, and the leaving water
temperature setpoint will be
lowered by 5°C.
▪ When the leaving water
temperature home page is ON,
the external room thermostat
is "Thermo OFF" and the
outdoor ambient temperature
drops below 4°C, then the unit
will supply leaving water to the
heat emitters to heat up the
room again and the leaving
water temperature setpoint will
be lowered by 5°C.
External room thermostat control Allow for the external room
([C‑07]=1)
thermostat to take care of room
frost protection:
Leaving water temperature
control ([C‑07]=0)
…then the following applies:
NOTICE
For the (limited) frost protection to be possible, auto
emergency MUST be set to Automatic ([A.5.1.2]=1).
[C‑07]=0: leaving water temperature control
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
45
8 Configuration
Under leaving water temperature control, room frost protection is
NOT guaranteed. However, if [2‑06] is set to "1", limited frost
protection by the unit is possible:
Preset values make it easy to use the same value in the schedule. If
you later want to change the value, you only have to do it in 1 place
(see also operation manual and/or user reference guide).
▪ When the leaving water temperature home page is OFF and the
outdoor ambient temperature drops below 4°C, then the unit will
supply leaving water to the heat emitters to heat up the room
again, and the leaving water temperature setpoint will be lowered
by 5°C.
Storage comfort
▪ When the leaving water temperature home page is ON, then the
unit will supply leaving water to the heat emitters to heat up the
room according to normal logic.
When programming the schedule, you can make use of the tank
temperatures set as preset values. The tank will then heat up until
these setpoint temperatures have been reached. Additionally, a
storage stop can be programmed. This feature puts a stop to tank
heating even if the setpoint has NOT been reached. Only program a
storage stop when tank heating is absolutely undesirable.
#
NOTICE
For the (limited) frost protection to be possible, auto
emergency MUST be set to Automatic ([A.5.1.2]=1).
Shut-off valve
The following is only applicable in case of 2 leaving water
temperature zones.
The shut-off valve, which is in the main leaving water temperature
zone, output is configurable.
Thermo On/OFF: the valve closes, depending on [F-0B] when there
is no heating and/or demand of the room in the main zone. Enable
this setting to:
▪ avoid leaving water supply to the heat emitters in the main LWT
zone (through the mixing valve station) when there is request from
the additional LWT zone.
▪ activate the On/OFF pump of the mixing valve station only when
there is demand. See "5 Application guidelines" on page 8.
#
Code
[A.3.1.1.6.1] [F-0B]
The desired reheat tank temperature is used:
▪ in reheat mode of scheduled + reheat mode: The guaranteed
minimum tank temperature is set by THP OFF–[6‑08], which is either
[6‑0C] or the weather dependent setpoint, minus the reheat
hysteresis. If the tank temperature drops below this value, the tank
is heated up.
#
Code
Code
Description
14°C~35°C (default: 35°C)
Domestic hot water control: advanced
Preset tank temperatures
[6-0C]
Description
30°C~min(50, [6‑0E])°C (default: 45°C)
Only applicable when domestic hot water preparation is scheduled +
reheat.
#
Space heating OFF temp: When the averaged outdoor temperature
raises above this value, space heating is turned OFF to avoid
overheating.
Description
30°C~min(50, [6‑0E])°C (default: 45°C)
Reheat
Reheat hysteresis
Depending on the average outdoor temperature, the operation of the
unit in space heating is prohibited.
8.3.2
Code
[6-0B]
▪ 0 (No)(default): is NOT influenced by
heating demand.
Operation range
[4-02]
#
[7.4.3.2]
[7.4.3.3]
The setting [F‑0B] is only valid when there is a thermostat
or external room thermostat request setting (NOT in case
of leaving water temperature setting).
Description
30°C~[6‑0E]°C (default: 60°C)
The storage economic temperature denotes the lower desired tank
temperature. It is the desired temperature when a storage economic
action is scheduled (preferably during day).
The shut-off valve:
INFORMATION
#
Code
[6-0A]
Storage eco
Description
▪ 1 (Yes): closes when there is NO
heating demand.
[A.3.3.1]
[7.4.3.1]
N/A
Code
[6-08]
Description
2°C~20°C (default: 10°C)
Weather dependent
The weather dependent installer settings define the parameters for
the weather dependent operation of the unit. When weather
dependent operation is active the desired tank temperature is
determined automatically depending on the averaged outdoor
temperature: low outdoor temperatures will result in higher desired
tank temperatures as the cold water tap is colder and vice versa. In
case of scheduled or scheduled+reheat domestic hot water
preparation, the storage comfort temperature is weather dependent
(according to the weather dependent curve), the storage economic
and reheat temperature are NOT weather dependent. In case of
reheat only domestic hot water preparation, the desired tank
temperature is weather dependent (according to the weather
dependent curve). During weather dependent operation, the enduser cannot adjust the desired tank temperature on the user
interface.
Only applicable when domestic hot water preparation is scheduled
or scheduled + reheat.
You can define preset tank temperatures:
▪ storage economic
▪ storage comfort
▪ reheat
▪ reheat hysteresis
Installer reference guide
46
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
#
[A.4.6]
Code
N/A
TDHW
Description
Desired temperature mode:
▪ Fixed (default): disabled. All desired
tank temperature are NOT weather
dependent.
TU=TBUH OFF 60
THP MAX 50
THP OFF 48
40
▪ Weather dep.: enabled. In scheduled
or scheduled+reheat mode, the
storage comfort temperature is
weather dependent. Storage economic
and reheat temperatures are NOT
weather dependent. In reheat mode,
the desired tank temperature is
weather dependent.
Note: When the displayed tank
temperature is weather dependent, it
cannot be adjusted on the user
interface.
[A.4.7]
[0-0E]
[0-0D]
[0-0C]
[6-01]
[6-00]
THP ON 46
30
20
10
HP
BUH
TU
= 60°C
THP MAX = 50°C
[6-01] = 2°C
[6-00] = 2°C
HP
5
BUH
HP
TBUH OFF
THP MAX
Weather-dependent curve
THP OFF
THP ON
TDHW
TU
t
TDHW
[0-0C]
[0-0B]
t
Backup heater
Heat pump. If heating up time by the heat pump takes too
long, auxiliary heating by the backup heater can take place
Backup heater OFF temperature (TU)
Maximum heat pump temperature at sensor in domestic
hot water tank
Heat pump OFF temperature (THP MAX−[6-01])
Heat pump ON temperature (THP OFF−[6-00])
Domestic hot water temperature
User set point temperature (as set on the user interface)
Time
Example: setpoint (TU)≤maximum heat pump temperature–[6‑01]
(THP MAX–[6‑01])
[0-0B]
[0-0E]
[0-0D]
TDHW
Ta
▪ TDHW: The desired tank temperature.
▪ Ta: The (averaged) outdoor ambient
temperature
THP MAX 50
TU=THP OFF 45
THP ON 43
[6-00]
40
30
▪ [0-0E]:
low
outdoor
ambient
temperature: –40°C~5°C (default: –
20°C)
▪ [0-0D]:
high
outdoor
temperature: 10°C~25°C
15°C)
20
ambient
(default:
5
THP MAX
THP OFF
THP ON
TDHW
TU
t
▪ [0-0B]: desired tank temperature when
the outdoor temperature equals or
rises above the high ambient
temperature: 35°C~[6‑0E]°C (default:
45°C)
In domestic hot water operation, following hysteresis values can be
set for the heat pump operation:
#
N/A
Code
[6-00]
Description
t
HP
▪ [0-0C]: desired tank temperature when
the outdoor temperature equals or
drops below the low ambient
temperature: 45°C~[6‑0E]°C (default:
60°C)
Limits on heat pump operation
HP
10
Heat pump. If heating up time by the heat pump takes too
long, auxiliary heating by the booster heater can take place
Maximum heat pump temperature at sensor in domestic
hot water tank
Heat pump OFF temperature (THP MAX−[6-01])
Heat pump ON temperature (THP OFF−[6-00])
Domestic hot water temperature
User set point temperature (as set on the user interface)
Time
INFORMATION
The maximum heat pump temperature depends on the
brine temperature.
Timers for simultaneous request space and domestic hot water
operation
#
N/A
Code
[8-00]
Description
Do not change. (default: 1)
The temperature difference determining
the heat pump ON temperature.
Range: 2°C~20°C (default: 2°C)
N/A
[6-01]
The temperature difference determining
the heat pump OFF temperature.
Range: 0°C~10°C (default: 2°C)
Example: setpoint (TU)>maximum heat pump temperature–[6‑01]
(THP MAX–[6‑01])
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
47
8 Configuration
#
Code
N/A
CAUTION
Description
[8-01]
Maximum running time for domestic hot
water operation. Domestic hot water
heating stops even when the target
domestic hot water temperature is NOT
reached. The actual maximum running
time also depends on setting [8-04].
The disinfection function settings MUST be configured by
the installer according to the applicable legislation.
#
Code
[A.4.4.2]
[2-00]
▪ 1: Monday
▪ 2: Tuesday
▪ 3: Wednesday
▪ 4: Thursday
▪ 5 (default): Friday
▪ When system layout ≠ Room
thermostat control: This preset value is
always taken into account.
N/A
[8-02]
N/A
[8-04]
Operation day:
▪ 0: Each day
▪ When system layout = Room
thermostat control: This preset value is
only taken into account if there is a
request for space heating. If there is
NO request for space heating, the tank
is heated until the setpoint has been
reached.
Range: 5~95 minutes (default: 30)
Description
▪ 6: Saturday
▪ 7: Sunday
[A.4.4.1]
[2-01]
Disinfection
Anti-recycling time.
▪ 0: No
Minimum time between two cycles for
domestic hot water. The actual antirecycling time also depends on ambient
temperature.
▪ 1 (default): Yes
[A.4.4.3]
[2-02]
Start time: 00~23:00 (default: 23:00),
step: 1:00.
[A.4.4.4]
[2-03]
Temperature target: 60°C (fixed).
Range: 0~10 hours (default: 0.5) (step:
0.5 hour)
[A.4.4.5]
[2-04]
Duration: 40~60 minutes, default: 40
minutes.
Remark: The minimum time is 1/2 hour
even when the selected value is 0.
TDHW
Additional running time for the maximum
running time depending on the outdoor
ambient limit temperature [4-02].
Range: 0~95 minutes (default: 95)
[2-03]
[2-04]
TH
TU
[8-02]: Anti-recycling time
1
00.00
01.00
22.00
23.00
24.00
t
0
[2-02]
1
TDHW
TU
TH
t
0
[8-00]
[8-01]
1
2
t
t
[8-02]
Heat pump domestic water heating mode (1=active, 0=not
active)
Hot water request for heat pump (1=request, 0=no request)
Time
[8-04]: Additional running time at [4-02]
t
[8-01]+
[8-04]
[8-02]
[8-01]
0
Domestic hot water temperature
User set point temperature
High set point temperature [2-03]
Time
WARNING
Be aware that the domestic hot water temperature at the
hot water tap will be equal to the value selected in field
setting [2-03] after a disinfection operation.
When the high domestic hot water temperature can be a
potential risk for human injuries, a mixing valve (field
supply) shall be installed at the hot water outlet connection
of the domestic hot water tank. This mixing valve shall
secure that the hot water temperature at the hot water tap
never rise above a set maximum value. This maximum
allowable hot water temperature shall be selected
according to the applicable legislation.
CAUTION
[5-03]
TA
t
[4-02]
TA
Ambient (outdoor) temperature
Time
Anti-recycle time space operation
Maximum running time domestic hot water
Be sure that the disinfection function start time [A.4.4.3]
with defined duration [A.4.4.5] is NOT interrupted by
possible domestic hot water demand.
Disinfection
The disinfection function disinfects the domestic hot water tank by
periodically heating the domestic hot water to a specific temperature.
Installer reference guide
48
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
INFORMATION
INFORMATION
In case of error code AH and no interruption of the
disinfection function occurred due to domestic hot water
tapping, following actions are recommended:
Only for systems with integrated domestic hot water tank: If
backup heater operation during space heating needs to be
limited but can be allowed for domestic hot water
operation, then put [4‑00] on 1, [5‑00] on 1, and [5‑01] on –
15°C.
▪ When the Domestic hot water > Type > Reheat or
Reheat + sched. is selected, it is recommended to
program the start-up of the disinfection function at least
4 hours later than the last expected large hot water
tapping. This start-up can be set by installer settings
(disinfection function).
▪ When the Domestic hot water > Type > Scheduled only
is selected, it is recommended to program a Storage
eco 3 hours before the scheduled start-up of the
disinfection function to preheat the tank.
INFORMATION
Disinfection function is restarted in case the domestic hot
water temperature drops 5°C below the disinfection target
temperature within the duration time.
INFORMATION
An AH error occurs if you do the following during
disinfection:
▪ Set the user permission level to Installer.
▪ Go to the DHW tank temperature home page (Tank).
▪ Press
8.3.3
to interrupt the disinfection.
INFORMATION
If the storage temperature set point is higher than 55°C,
ROTEX recommends NOT to disable the backup heater
second step because it will have a big impact on the
required time for the unit to heat up the domestic hot water
tank.
Auto emergency
When the heat pump fails to operate the backup heater can serve as
an emergency heater and either automatically or non-automatically
take over the heat load. When auto emergency is set to Automatic
and a heat pump failure occurs, the backup heater will automatically
take over the heat load. When a heat pump failure occurs and auto
emergency is set to Manual the domestic hot water and space
heating operations will stop and need to be recovered manually. The
user interface will then ask you to confirm whether the backup heater
can take over the heat load or not. When the heat pump fails, will
appear on the user interface. If the house is unattended for longer
periods, we recommend that setting [A.5.1.2] Emergency shall be
set to Automatic.
#
Code
[A.5.1.2]
Heat source settings
N/A
Backup heater
Backup heater operation mode: defines when backup heater
operation is disabled, enabled or only allowed during domestic hot
water operation. This setting is only overruled when backup heating
is required during malfunctioning of the heat pump (when [A.5.1.2] is
set on manual or automatic).
Description
Defines whether in an emergency
situation the backup heater is allowed to
automatically take over the entire heat
load or whether manual confirmation is
required.
▪ 0: Manual (default)
▪ 1: Automatic
INFORMATION
#
[A.5.1.1]
Code
[4‑00]
Description
Backup heater operation:
▪ 0: Disabled
▪ 1 (default): Enabled
[A.5.1.3]
[4‑07]
Defines whether backup heater second
step is:
▪ 1 (default): Allowed
▪ 0: NOT allowed
In this way it is possible to limit the
backup heater capacity.
N/A
[5‑00]
Is backup heater operation allowed
above equilibrium temperature during
space heating operation?
▪ 1 (default): NOT allowed
▪ 0: Allowed
[A.5.1.4]
[5‑01]
Equilibrium temperature.
Outdoor temperature below which
operation of the backup heater is
allowed.
Range: –15°C~35°C (default: 0°C) (step:
1°C)
The auto emergency setting can be set in the menu
structure of the user interface only.
INFORMATION
If a heat pump failure occurs and [A.5.1.2] is set to Manual,
the room frost protection function, the underfloor heating
screed dryout function, and the water pipe antifreeze
function will remain active even if the user does NOT
confirm emergency operation.
Bivalent
Applies only to installations with an auxiliary boiler (alternating
operation, parallel connected). The purpose of this function is to
determine — based on the outdoor temperature — which heating
source can/will provide the space heating, either the indoor unit or
an auxiliary boiler.
The field setting "bivalent operation" apply only the indoor unit space
heating operation and the permission signal for the auxiliary boiler.
When the "bivalent operation" function is enabled, the indoor unit will
stop automatically in space heating operation when the outdoor
temperature drops below "bivalent ON temperature" and the
permission signal for the auxiliary boiler becomes active.
When the bivalent operation function is disabled, the space heating
by indoor unit is possible at all outdoor temperatures (see operation
ranges) and permission signal for auxiliary boiler is ALWAYS
deactivated.
▪ [C‑03] Bivalent ON temperature: defines the outdoor temperature
below which the permission signal for the auxiliary boiler will be
active (closed, KCR on EKRP1HB) and space heating by indoor
unit will be stopped.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
49
8 Configuration
▪ [C‑04] Bivalent hysteresis: defines the temperature difference
between bivalent ON temperature and bivalent OFF temperature.
Permission signal X1–X2 (EKRP1HB)
a
[C-04]
b
If the preferential kWh rate power supply is of the type that power
supply is interrupted, always enable the auto restart function.
Continuous indoor unit control can be guaranteed independent of the
preferential kWh rate power supply status, by connecting the indoor
unit to a normal kWh rate power supply.
#
TA
[C-03]
TA
a
b
Code
[A.6.1]
[3‑00]
Outdoor temperature
Closed
Open
▪ 1 (default): Yes
Make sure to observe all rules mentioned in application
guideline 5 when bivalent operation function is enabled.
ROTEX shall NOT be held liable for any damage resulting
from failure to observe this rule.
Preferential kWh rate power supply
#
Code
[A.2.1.6]
[D‑01]
▪ The bivalent operation function has no impact on the
domestic water heating mode. The domestic hot water
is still and only heated by the indoor unit.
▪ 1: The heat pump module is
connected to a preferential kWh rate
power supply. When the preferential
kWh rate signal is sent by the
electricity company, the contact will
open and the unit will go in forced off
mode. When the signal is released
again, the voltage-free contact will
close and the unit will restart
operation. Therefore, always enable
the auto restart function.
▪ The permission signal for the auxiliary boiler is located
on the EKRP1HB (digital I/O PCB). When it is
activated, the contact X1, X2 is closed and open when
it is deactivated. See illustration below for the
schematic location of this contact.
X1 X2 X3 X4
X2M
OFF ON
▪ 2: The heat pump module is
connected to a preferential kWh rate
power supply. When the preferential
kWh rate signal is sent by the
electricity company, the contact will
close and the unit will go in forced off
mode. When the signal is released
again, the voltage-free contact will
open and the unit will restart
operation. Therefore, always enable
the auto restart function.
SS1
X1M
YC Y1 Y2 Y3 Y4
[A.6.2.1]
Code
[C‑03]
ON temperature.
Range: –25°C~25°C (default: 0°C) (step:
1°C)
[C‑04]
Hysteresis.
Temperature difference between bivalent
heat source ON and OFF to prevent too
much switching.
Range: 2°C~10°C (default: 3°C) (step:
1°C)
8.3.4
[D‑00]
Description
If the outdoor temperature drops below
this temperature, the bivalent heat
source permission signal will be active.
N/A
Description
Connection to a preferential kWh rate
power supply:
▪ 0 (default): The heat pump module is
connected to a normal power supply.
INFORMATION
N/A
Is the auto restart function of the unit
allowed?
▪ 0: No
CAUTION
#
Description
System settings
Which heaters are allowed to operate
during preferential kWh rate power
supply?
▪ 0 (default): None
[D‑00]
0 (default)
Backup heater
Forced OFF
Compressor
Forced OFF
Power consumption control
NOTICE
During periods of excessive capacity demand (example:
screed dryout function), the power limitation can be
activated in accordance to the dimension of the brine earth
collector.
See "5 Application guidelines" on page 8 for detailed information
about this functionality.
Pwr consumpt. control
Auto-restart
When power returns after a power supply failure, the auto restart
function reapplies the remote controller settings at the time of the
power failure. Therefore, it is recommended to always enable the
function.
Installer reference guide
50
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
#
N/A
Code
[4-08]
Description
Mode:
[4-09]
[5-05]
N/A
[5-09]
▪ 1 (Continuous): Enabled: You can
set one power limitation value (in A
or kW) to which the system power
consumption will be limited for all the
time.
▪ 1: 12 hours
▪ 3: 48 hours
▪ 4: 72 hours
Offset temperature remote outdoor ambient sensor
Type:
▪ 0 (Current) (default): The limitation
values are set in A.
[A.6.5]
#
Code
[2‑0B]
Value: Only applicable in case of full
time power limitation mode.
0 A~50 A, step: 1 A (default: 50 A)
Pump operation
Value: Only applicable in case of full
time power limitation mode.
Limit DI1
When the pump operation function is disabled the pump will stop if
the outdoor temperature is higher than the value set by [4‑02]. When
the pump operation is enabled, the pump operation is possible at all
outdoor temperatures.
#
N/A
Code
[F‑00]
[5-06]
Limit DI2
▪ 1:
Possible
temperatures.
0 A~50 A, step: 1 A (default: 50 A)
N/A
[5-07]
Limit DI3
0 A~50 A, step: 1 A (default: 50 A)
N/A
[5-08]
Limit DI4
0 A~50 A, step: 1 A (default: 50 A)
kW limits for DI: Only applicable in case of power limitation mode
based on digital inputs and based on power values.
N/A
[5-09]
N/A
[5-0A]
#
N/A
Code
[F‑09]
Limit DI2
[5-0B]
N/A
[5-0C]
Limit DI4
0 kW~20 kW, step: 0.5 kW (default:
20 kW)
outdoor
Description
Pump continue operation when flow
abnormality:
▪ 1 (default): Pump will be activated
when Ta<4°C (10 minutes ON – 10
minutes OFF)
Limit DI3
0 kW~20 kW, step: 0.5 kW (default:
20 kW)
all
▪ 0: Pump will be deactivated.
0 kW~20 kW, step: 0.5 kW (default:
20 kW)
N/A
at
Pump operation during flow abnormality [F‑09] defines whether the
pump stops at flow abnormality or allow to continue operation when
flow abnormality occurs. This functionality is only valid in specific
conditions where it is preferable to keep the pump active when
Ta<4°C (pump will be activated for 10 minutes and deactivated after
10 minutes). ROTEX shall NOT be held liable for any damage
resulting this functionality.
Limit DI1
0 kW~20 kW, step: 0.5 kW (default:
20 kW)
Description
Pump operation:
▪ 0 (default): Disabled if outdoor
temperature is higher than [4‑02].
0 A~50 A, step: 1 A (default: 50 A)
N/A
Description
–5°C~5°C, step: 0.5°C (default: 0°C)
The weather-dependent leaving water temperature setpoint is
calculated based on the outdoor ambient temperature + [2‑0B].
However, the user interface will ONLY display the outdoor ambient
temperature (without the addition of [2‑0B]).
Amp. limits for DI: Only applicable in case of power limitation mode
based on digital inputs and based on current values.
[5-05]
▪ 2: 24 hours
You can calibrate the remote outdoor ambient temperature sensor. It
is possible to give an offset to the thermistor value. The setting can
be used to compensate for situations where the remote outdoor
ambient sensor cannot be installed on the ideal installation location
(see installation).
0 kW~20 kW, step: 0.5 kW (default:
20 kW)
N/A
Description
Outdoor average timer:
▪ 0: No averaging (default)
▪ 1 (Power): The limitation values are
set in kW.
N/A
Code
[1-0A]
▪ 0 (No limitation)(default): Disabled.
▪ 2 (Digital inputs): Enabled: You can
set up to four different power
limitation values (in A or kW) to
which
the
system
power
consumption will be limited when the
corresponding digital input asks.
N/A
#
[A.6.4]
Pump speed limitation
Pump speed limitation [9‑0D] defines the maximum pump speed. In
normal conditions, the default setting should NOT be modified. The
pump speed limitation will be overruled when the flow rate is in the
range of the minimum flow (error 7H).
Average timer
The average timer corrects the influence of ambient temperature
variations. The weather-dependent set point calculation is done on
the average outdoor temperature.
The outdoor temperature is averaged over the selected time period.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
51
8 Configuration
#
N/A
Code
[9‑0D]
Description
[9-0D]=6
[9-0D]=7
a (kPa)
a (kPa)
Pump speed limitation
▪ 0: No limitation.
▪ 1~4: General limitation. There is
limitation in all conditions. The
required delta T control and comfort
are NOT guaranteed.
▪ 5~8 (default: 6): Limitation when no
actuators. When there is no heating
output, the pump speed limitation is
applicable. When there is heating
output, the pump speed is only
determined by delta T in relation to the
required capacity. With this limitation
range, delta T is possible and the
comfort is guaranteed.
b (l/min)
b (l/min)
[9-0D]=8
a (kPa)
The maximum values depend on the unit type:
[9-0D]=0
[9-0D]=5
a (kPa)
a (kPa)
b (l/min)
a
b
b (l/min)
Installer reference guide
52
External static pressure
Water flow rate
b (l/min)
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
8 Configuration
8.4
[1]
Menu structure: Overview user settings
Set time/date
Date
Time
Daylight Saving Time
Clock type
[2]
Holiday
<>
Holiday
Holiday mode
From
Until
Use day schedule
[5]
Home
Select schedules
[2]
Holiday
Holiday
Holiday mode
From
Until
Operation mode
Heating
DHW
Away
Room temperature
LWT main
LWT additional
Tank temperature
[6]
Information
Sensor information
Energy metering
Error handling
User permission level
Actuators
Operation modes
Running hours
Version
[6.2]
Produced energy
[6.3]
User settings
Display
Temperature lock
Set schedules
Preset values
Unit of measurement
Set weather dependent
Error information
Error history
Contact/helpdesk number
Warning history
[6.8]
[7]
Energy metering
Consumed elec.
Version
User interface
Indoor unit
Outdoor unit
[7.1]
Display
Contrast
Backlit LCD time
User profile
Available home pages
[7.3]
Set schedules
Room temp.
LWT main
LWT additional
DHW temp
DHW pump
[7.4]
Preset values
Room temperature
LWT main
Tank temperature
[7.7]
Set weather dependent
Main
Additional
[7.7.1] Main
Set weather-dependent heating
[7.7.2] Additional
Set weather-dependent heating
INFORMATION
Energy metering functionality is NOT applicable and/or
NOT valid for this unit if it is calculated by the unit. If
optional external meters are used, energy metering display
is valid.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
INFORMATION
▪ Indoor unit relates to indoor unit PCB which controls
the hydraulic part of the ground source heat pump.
▪ Outdoor unit relates to outdoor unit PCB which controls
the compressor module of the ground source heat
pump.
Installer reference guide
53
8 Configuration
INFORMATION
Depending on the selected installer settings, settings will
be visible/invisible.
8.5
Menu structure: Overview installer settings
[A] Installer settings
Language
System layout
Space operation
Domestic hot water (DHW)
Heat sources
System operation
Commissioning
Overview settings
[A.2] System layout
Standard
Options
Capacities
Confirm layout
[A.2.1] Standard
Unit type
Compressor type
Indoor software type
BUH type
Preferential kWh rate
Unit control method
Number of LWT zones
Pump operation mode
Power saving possible
User interface location
[A.2.2] Options
[A.3] Space operation
LWT settings
Room thermostat
Operation range
Contact type main
Contact type add.
Digital I/O PCB
Demand PCB
External kWh meter
External kWh meter
DHW pump
External sensor
[A.3.1] Leaving water
Main
Additional
Delta T source
[A.3.2] Room thermostat
Room temp. range
Room temp. offset
Ext. room sensor offset
Room temp. step
[A.4] Domestic hot water
Type
Disinfection
Maximum setpoint
SP mode
Weather-dependent curve
[A.5] Heat sources
Backup heater
[A.6] System operation
Auto restart
Preferential kWh rate
Pwr consumpt. control
Averaging time
Ext amb. sensor offset
Brine freezeup temp
[A.2.2.6] Digital I/O PCB
Ext. backup heat src
Solar kit
Alarm output
[A.3.3] Operation range
Space heating OFF temp
[A.4.4] Disinfection
Disinfection
Operation day
Start time
Temperature target
Duration
[A.3.1.1] Main
LWT setpoint mode
Temperature range
Modulated LWT
Shut-off valve
Emitter type
[A.3.1.2] Additional
LWT setpoint mode
Temperature range
[A.3.1.3] Delta T source
Heating
[A.5.1] Backup heater
Operation mode
Emergency
Enable BUH step 2
Equilibrium temp.
[A.6.2] Prefer. kWh rate PS
Allowed heaters
Forced pump OFF
[A.6.3] Pwr consmp ctrl
[A.7] Commissioning
Test run
UFH screed dryout
Air purge
Actuator test run
Mode
Type
Amp. value
kW value
Amp. limits for DI
kW limits for DI
Priority
INFORMATION
INFORMATION
Solar kit settings are shown but are NOT applicable for this
unit. Settings shall NOT be used or changed.
Depending on the selected installer settings, settings will
be visible/invisible.
INFORMATION
Power saving settings are shown but are NOT applicable
for this unit. Settings shall NOT be used or changed.
Installer reference guide
54
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
9 Commissioning
9
Commissioning
The space heating air purge valve is open (at least 2
turns).
9.1
Overview: Commissioning
The pressure relief valves purge to a safe location when
opened.
The minimum water volume is guaranteed in all
conditions. See "To check the water volume and flow rate
of the space heating circuit and brine circuit" in
"6.3 Preparing piping" on page 18.
This chapter describes what you have to do and know to
commission the system after it is configured.
Typical workflow
Commissioning typically consists of the following stages:
1
2
3
Checking the "Checklist before commissioning".
Performing an air purge.
Performing an air purge on the brine circuit.
4
Performing a test run for the system.
5
6
If necessary, performing a test run for one or more actuators.
If necessary, performing an underfloor heating screed dryout.
9.2
9.4
Checklist during commissioning
The minimum flow rate during backup heater/defrost
operation is guaranteed in all conditions. See "To check
the water volume and flow rate of the space heating circuit
and brine circuit" in "6.3 Preparing piping" on page 18.
To perform an air purge.
Precautions when commissioning
To perform an air purge on the brine circuit.
INFORMATION
To perform a test run.
During the first running period of the unit, the required
power may be higher than stated on the nameplate of the
unit. This phenomenon is caused by the compressor, that
needs a continuous run time of 50 hours before reaching
smooth operation and stable power consumption.
To perform an actuator test run.
Underfloor screed dryout function
The underfloor screed dryout function is started (if
necessary).
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
9.3
9.4.1
1
Confirm according to the hydraulic configuration which space
heating loops can be closed due to mechanical, electronic, or
other valves.
2
Close all space heating loops that can be closed (see previous
step).
3
Start the pump test run operation (see "9.4.5 To perform an
actuator test run" on page 58).
4
Go to [6.1.8]:
> Information > Sensor information > Flow rate
to check the flow rate. During pump test run operation, the unit
can operate below this minimum required flow rate that is
needed during defrost/backup heater operation.
Checklist before commissioning
Do NOT operate the system before the following checks are OK:
You read the complete installation instructions, as
described in the installer reference guide.
The indoor unit is properly mounted.
To check the minimum flow rate
The following field wiring has been carried out according
to this document and the applicable legislation:
▪ Between the local supply panel and the indoor unit
▪ Between the indoor unit and the valves (if applicable)
▪ Between the indoor unit and the room thermostat (if
applicable)
The system is properly earthed and the earth terminals
are tightened.
Bypass valve foreseen?
Yes
No
Modify the bypass valve setting
to reach the minimum required
flow rate + 2 l/min
In case the actual flow rate is
below the minimum flow rate
(required during defrost/backup
heater operation), modifications
at hydraulic configuration are
required. Increase the space
heating loops that can NOT be
closed or install a pressure
controlled bypass valve.
The fuses or locally installed protection devices are
installed according to this document, and have not been
bypassed.
The power supply voltage matches the voltage on the
identification label of the unit.
There are NO loose connections or damaged electrical
components in the switch box.
There are NO damaged components or squeezed
pipes on the inside of the indoor unit.
There are NO refrigerant leaks.
The correct pipe size is installed and the pipes are
properly insulated.
There is NO water and/or brine leak inside the indoor
unit.
Minimum required flow rate during backup heater operation
12 l/min
9.4.2
Air purge function on the space heating
circuit
When commissioning and installing the unit, it is very important to
remove all air in the water circuit. When the air purge function is
running, the pump operates without actual operation of the unit and
the remove of air in the water circuit will start.
There are no odour traces noticeable of the used brine.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
55
9 Commissioning
NOTICE
Result: SHC
Before starting the air purge, open the safety valve and
check if the circuit is sufficiently filled with water. Only if
water escapes the valve after opening it, you can start the
air purge procedure.
Result: Tank
There are 2 modes to purge air:
▪ Manually: the unit will operate with a fixed pump speed and in a
fixed or custom position of the 3-way valve. The custom position
of the 3-way valve is a helpful feature to remove all air from the
water circuit in space heating or domestic hot water heating mode.
The operation speed of the pump (slow or quick) can also be set.
▪ Automatic: the unit change automatically the pump speed and the
position of the 3-way valve between space heating or domestic
hot water heating mode.
To perform an automatic air purge
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1
Set the user permission level to Installer. See "To set the user
permission level to Installer" on page 34.
2
Set the air purge mode: go to [A.7.3.1]
Commissioning > Air purge > Type.
3
Select Automatic and press
4
Go to [A.7.3.4]
> Installer settings > Commissioning > Air
purge > Start air purge and press
to start the air purge
function.
Typical workflow
Performing a manual air purge
2
Performing an automatic air purge
.
Result: Air purging will start and the following screen will be
shown.
Purging the air from the system should consist of:
1
> Installer settings >
Tue 01:18
Air purge
INFORMATION
Start by performing a manual air purge. When almost all
the air is removed, perform an automatic air purge. If
necessary, repeat performing the automatic air purge until
you are sure that all air is removed from the system.
During air purge function, pump speed limitation [9‑0D] is
NOT applicable.
Make sure that the leaving water temperature home page, room
temperature home page, and domestic hot water home page are
turned OFF.
0.5 l/min
Low
SHC
Flow rate
Speed
Circuit
Adjust
Stop
Scroll
To interrupt air purge
1
Press
and press
purge function.
to confirm the interruption of the air
The air purge function stops automatically after 30 minutes.
9.4.3
To perform a manual air purge
When installing and commissioning the unit, it is very important to
remove all air from the brine circuit.
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1
Set the user permission level to Installer. See "To set the user
permission level to Installer" on page 34.
2
Set the air purge mode: go to [A.7.3.1]
Commissioning > Air purge > Type.
> Installer settings >
3
Select Manual and press
.
4
Go to [A.7.3.4]
> Installer settings > Commissioning > Air
purge > Start air purge and press
to start the air purge
function.
Result: The manual air purge starts and the following screen
appears.
Tue 01:18
Air purge
Adjust
Stop
Scroll
Use the and buttons to scroll to Speed.
6
Use the
buttons to set the desired pump speed.
Result: Low
Result: High
7
If applicable, set the desired position of the 3-way valve (space
heating/domestic hot water)(space heating/domestic hot water).
Use the and buttons to scroll to Circuit.
8
Use the and buttons to set the desired position of the 3-way
valve (space heating/domestic hot water).
Installer reference guide
56
It is required that the brine circuit is filled BEFORE the
brine pump test run is activated.
There are 2 ways to perform an air purge:
▪ with a brine filling station (field supply),
▪ with a brine filling station (field supply) in combination with the
unit's own brine pump.
10‑day brine pump operation. If a brine buffer vessel is part of the
system, it may be required to let the brine pump run continuously for
10 days after the system is commissioned. If 10‑day brine pump
operation is:
▪ ON: The unit operates as normal, except that the brine pump
operates continuously for 10 days, independent of compressor
status.
To perform an air purge with a brine filling station
5
and
NOTICE
▪ OFF: Brine pump operation is linked to compressor status.
0.5 l/min
Low
SHC
Flow rate
Speed
Circuit
Air purge function on the brine circuit
Follow the instructions included with the brine filling station (field
supply).
To perform an air purge with the brine pump and a
brine filling station
Prerequisite: Performing an air purge on the brine circuit was NOT
successful using a brine filling station only (see "To perform an air
purge with a brine filling station" on page 56). In this case, use a
brine filling station and the unit's own brine pump simultaneously.
1
Fill the brine circuit.
2
Start the brine pump test run.
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ROTEX HPU ground
4P374245-1A – 2015.10
9 Commissioning
3
Start the brine filling station (MUST be started within a time
frame of 5~60 seconds after starting the brine pump test run).
a
b
a
b
4
Result: The brine pump test run starts running, starting the removal
of air from the brine circuit. During the test run, the brine pump
operates without actual operation of the unit.
INFORMATION
For details on starting/stopping the brine pump test run,
see "9.4.5 To perform an actuator test run" on page 58.
The brine pump test run stops automatically after 2 hours.
To start or stop 10-day brine pump operation
INFORMATION
The 10‑day brine pump operation procedure includes the
activation of the brine pump test run. Because the
procedure provides limited time for this, it is required that
the brine pump test run be activated as fast as possible.
For instructions, see "To perform a brine pump test run" on
page 57.
1
Start the brine pump test run and leave it on for at least
3 seconds.
2
Stop the brine pump test run before the timer has finished.
3
Start the brine pump test run again and leave it on for at least
3 seconds.
4
Stop it before the timer has finished.
Result: A 60‑second timer starts counting down.
Result: A 30‑second timer starts counting down.
>3 s
2
3
5
Press
twice to go to Commissioning and press
Press
.
7
>
>
>
>
>
>
once to go to Actuator test run and press
A.7
Commissioning
Test run
UFH screed dryout
Air purge
Actuator test run
.
4
>
>
>
>
Scroll
Select
Press
once to go to Brine pump and press
A.7.4
Actuator test run
Backup heater (step 1)
Backup heater (step 2)
Pump
3-way valve
Alarm output
Brine pump
Scroll
Select
7
Result: 10‑day brine pump operation switches (OFF→ON or
ON→OFF).
1
Scroll
A
Installer settings
Space operation
Domestic hot water (DHW)
Heat sources
System operation
Commissioning
Overview settings
Scroll
Select
6
Prerequisite: All other commissioning tasks are finished.
A
>
>
>
>
>
Select
Brine pump test run
Brine filling station
Time frame of 5~60 seconds
>3 s
A
Set time/date
Select schedules
Information
User settings
Installer settings
Select OK and press
.
I
>
>
>
>
>
>
.
Brine pump
Are you sure you want to start
the test?
4
OK
60 s
Cancel
Confirm
30 s
Adjust
Result: The brine pump test run starts. It automatically stops when
finished. To stop it manually, press
, select OK and press
.
B1
Tue 01:18
Test run
B2
Mode
A
B1
B2
ON
OFF
Brine pump test run
Starting 10‑day brine pump operation
Stopping 10‑day brine pump operation
Brine pump
Stop
To perform a brine pump test run
9.4.4
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1
Set the user permission level to Installer. See "To set the user
permission level to Installer" on page 34.
2
Press
3
Press
.
once to go to Installer settings and press
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ROTEX HPU ground
4P374245-1A – 2015.10
.
To perform a test run
1
Set the user permission level to Installer. See "To set the user
permission level to Installer" on page 34.
2
Go to [A.7.1]:
run.
3
Select a test and press
> Installer settings > Commissioning > Test
. Example: Heating.
Installer reference guide
57
9 Commissioning
4
Select OK and press
.
9.4.6
Result: The test run starts. It stops automatically when done
(±30 min). To stop it manually, press
, select OK and press
.
INFORMATION
If 2 user interfaces are present, you can start a test run
from both user interfaces.
▪ The user interface used to start the test run displays a
status screen.
This function will be used to dry-out the screed of an underfloor
heating very slowly during the construction of a house. It allows the
installer to program and execute this program.
Make sure that the leaving water temperature home page, room
temperature home page, and domestic hot water home page are
turned OFF.
INFORMATION
▪ The other user interface displays a "busy" screen. You
cannot use the user interface as long as the "busy"
screen is shown.
▪ If Emergency is set to Manual ([A.5.1.2]=0), and the
unit is triggered to start emergency operation, the user
interface will ask confirmation before starting. The
underfloor heating screed dryout function is active even
if the user does NOT confirm emergency operation.
If the installation of the unit has been done correctly, the unit will
start up during test operation in the selected operation mode. During
the test mode, the correct operation of the unit can be checked by
monitoring leaving water temperature (heating mode) and tank
temperature (domestic hot water mode).
▪ During underfloor heating screed dryout, pump speed
limitation [9‑0D] is NOT applicable.
NOTICE
To monitor the temperature, go to [A.6] and select the information
you want to check.
9.4.5
Underfloor heating screed dryout
The installer is responsible for:
▪ contacting the screed manufacturer for the initial
heating instructions to avoid cracking the screed,
To perform an actuator test run
Purpose of the actuator test run is to confirm the operation of the
different actuators (e.g., when you select pump operation, a test run
of the pump will start).
▪ programming the underfloor heating screed dryout
schedule according to the above instruction of the
screed manufacturer,
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
▪ checking the proper functioning of the setup on a
regular basis,
1
Set the user permission level to Installer. See "To set the user
permission level to Installer" on page 34.
2
Make sure the room temperature control, the leaving water
temperature control and the domestic hot water control are
turned OFF via the user interface.
▪ selecting the correct program complying with the type
of the used screed of the floor.
NOTICE
Room frost protection is default disabled ([2‑06]=0). Do
NOT enable this function until the underfloor screed dryout
function is completed successfully. Ignoring this notice can
result in cracking of the screed.
> Installer settings > Commissioning >
3
Go to [A.7.4]:
Actuator test run.
4
Select an actuator and press
5
Select OK and press
. Example: Pump.
NOTICE
.
For the underfloor heating screed dryout to be able to start,
make sure the following settings are met:
Result: The actuator test run starts. It automatically stops when
finished. To stop it manually, press
, select OK and press
.
▪ [2‑06]=0
INFORMATION
▪ [4‑00]=1
If the brine pump test run is activated as part of the 10‑day
brine pump operation procedure, it is required to activate
the test run as fast as possible. For instructions, see "To
perform a brine pump test run" on page 57.
▪ [C‑02]=0
▪ [4‑04]=2
▪ [D‑01]=0
▪ [4‑08]=0
Possible actuator test runs
▪ Backup heater (step 1) test
▪ Backup heater (step 2) test
▪ Pump test (space heating)
INFORMATION
Make sure that all air is purged before executing the test
run. Also avoid disturbances in the water circuit during the
test run.
▪ [4‑01]≠1
The installer can program up to 20 steps where for each step he
needs to enter:
1
the duration by a number of hours up to 72 hours,
2
the desired leaving water temperature.
Example:
T
24h (1)
36h (2)
25°C (1)
A1
35°C (2)
▪ Brine pump test
▪ 2-way valve test
▪ 3-way valve test
▪ Bivalent signal test
▪ Alarm output test
▪ Circulation pump test
Installer reference guide
58
t
T
t
(1)
Desired leaving water temperature (15~55°C)
Duration (1~72h)
Action step 1
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10 Hand-over to the user
(2)
Action step 2
To interrupt an underfloor heating screed dryout
To program an underfloor heating screed dryout
schedule
1
Set the user permission level to Installer. See "To set the user
permission level to Installer" on page 34.
2
Go to [A.7.2]:
> Installer settings > Commissioning > UFH
screed dryout > Set dryout schedule.
3
Use the
,
,
, and
to program the schedule.
▪ Use
and
to scroll through the schedule.
▪ Use
and
to adjust the selection.
If a time is selected, you can set the duration between 1 and
72 hours.
If a temperature is selected, you can set the desired leaving
water temperature between 15°C and 55°C.
4
To add a new step, select "–h" or "–" on an empty line and
press
.
5
To delete a step, set the duration to "–" by pressing
6
Press
.
When the program is stopped by an error, an operation switch off, or
a power failure, the U3 error will be displayed on the user interface.
To resolve the error codes, see "12.4 Solving problems based on
error codes" on page 63. To reset the U3 error, your User
permission level needs to be Installer.
1
Go to the underfloor heating screed dryout screen.
2
Press
.
3
Press
to interrupt the program.
4
Select OK and press
Result: The underfloor heating screed dryout program is stopped.
When the program is stopped due to an error, an operation switchoff, or a power failure, you can read out the underfloor heating
screed dryout status.
5
Go to [A.7.2]:
> Installer settings > Commissioning > UFH
screed dryout > Dryout status > Stopped at and followed by the
last executed step.
6
Modify and restart the execution of the program.
to save the schedule.
It is important that there is no empty step in the program.
The schedule will stop when a blank step is programmed
OR when 20 consecutive steps have been executed.
To perform an underfloor heating screed dryout
.
10
Hand-over to the user
INFORMATION
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
Preferential kWh rate power supply cannot be used in
combination with underfloor heating screed dryout.
▪ Fill in the installer setting table (in the operation manual) with the
actual settings.
Prerequisite: Make sure there is ONLY 1 user interface connected
to your system to perform an underfloor heating screed dryout.
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1
Go to [A.7.2]:
screed dryout.
> Installer settings > Commissioning > UFH
2
Set a dryout program.
3
Select Start dryout and press
4
Select OK and press
▪ Make sure that the user has the printed documentation and ask
him/her to keep it for future reference. Inform the user that he can
find the complete documentation on the url as earlier described in
this manual.
▪ Explain the user how to properly operate the system and what to
do in case of problems.
▪ Show the user what to do in relation to maintaining the unit.
.
▪ Explain the user about energy saving tips as described in the
operation manual.
.
Result: The underfloor heating screed dryout starts and following
screen will be shown. It stops automatically when done. To stop it
manually, press
, select OK and press
.
10.1
NOTICE
Tue 15:10
National implementation of EU regulation on certain
fluorinated greenhouse gases may require to provide the
appropriate official language on the unit. Therefore, an
additional multilingual fluorinated greenhouse gases label
is supplied with the unit.
Screed dryout
Current step
Remaining
Desired LWT
1
14d 12h
25°C
Stop
To readout the status of an underfloor heating
screed dryout
1
Press
2
The current step of the program, the total remaining time, and
the current desired leaving water temperature will be displayed.
To fix the applicable language on
the unit name plate
1
From the multilingual fluorinated greenhouse gases label peal
off the applicable language.
2
Stick it on top of the marked area on the unit name plate.
.
INFORMATION
There is limited access to the menu structure. Only the
following menus can be accessed:
▪ Information.
▪ Installer settings > Commissioning > UFH screed
dryout.
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Installer reference guide
59
11 Maintenance and service
11
Maintenance and service
NOTICE
2
Maintenance should preferably be carried out yearly by an
installer or service agent.
11.1
1
3
4
5
Overview: Maintenance and
service
This chapter contains information about:
▪ The yearly maintenance of the indoor unit
11.2
Maintenance safety precautions
DANGER: RISK OF ELECTROCUTION
Pressure relief valve
Open the valve and check the correct operation. Discharge may be
very hot!
Checkpoints are:
DANGER: RISK OF BURNING
▪ Fluid flow coming from the relief valve is high enough, no
blockage of the valve or in between piping is suspected.
NOTICE: Risk of electrostatic discharge
▪ Fluid coming out from the relief valve and contains debris or dirt:
Before performing any maintenance or service work, touch
a metal part of the unit in order to eliminate static electricity
and to protect the PCB.
11.3
Checklist for yearly maintenance
of the indoor unit
Check the following at least once a year:
▪ open the valve until the discharged water does NOT contain dirt
anymore
▪ flush the system and install an additional water filter (a
magnetic cyclone filter is preferably).
It is recommended to do this maintenance more frequently.
Pressure relief valve hose
▪ Filters
Check whether the pressure relief valve hose is positioned
appropriately to drain. See "7.5.5 To connect the pressure relief
valve to the drain" on page 27 and "7.4.5 To connect the pressure
relief valve to the drain on the brine side" on page 26.
▪ Pressure relief valves (1 at brine side, 1 at space heating side)
Relief valve of the domestic hot water tank (field supply)
▪ Relief valve hoses
▪ Pressure relief valve of the domestic hot water tank
Open the valve and check the correct operation. Water may be very
hot!
▪ Switch box
Checkpoints are:
▪ Descaling
▪ The water flow coming from the relief valve is high enough, no
blockage of the valve or in between piping is suspected.
▪ Fluid pressure of space heating and brine circuit
▪ Chemical disinfection
▪ Anode
▪ Brine leakage
Fluid pressure
Check whether the fluid pressure is above 1 bar. If it is lower, add
fluid.
▪ Dirty water coming out of the relief valve:
▪ open the valve until the discharged water does not contain dirt
anymore
▪ flush and clean the complete tank, including the piping between
the relief valve and cold water inlet.
Filters
To make sure this water originates from the tank, check after a tank
heat up cycle.
Clean the filters.
It is recommended to do this maintenance more frequently.
NOTICE
Switch box
Handle the space heating circuit filter with care. Do NOT
use excessive force when you reinsert the water filter so as
NOT to damage the water filter mesh.
▪ Carry out a thorough visual inspection of the switch box and look
for obvious defects such as loose connections or defective wiring.
NOTICE
When removing the filter circlip, do NOT drop it.
▪ Using an ohmmeter, check if contactors K1M, K2M, K3M and K5M
(depending on your installation) operate correctly. All contacts of
these contactors must be in open position when the power is
turned OFF.
WARNING
If the internal wiring is damaged, it has to be replaced by
the manufacturer, its service agent or similarly qualified
persons.
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60
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12 Troubleshooting
Descaling
Depending on water quality and set temperature, scale can deposit
on the heat exchanger inside the domestic hot water tank and can
restrict heat transfer. For this reason, descaling of the heat
exchanger may be required at certain intervals.
Chemical disinfection
If the applicable legislation requires a chemical disinfection in
specific situations, involving the domestic hot water tank, please be
aware that the domestic hot water tank is a stainless steel cylinder
containing an aluminium anode. We recommend to use a nonchloride based disinfectant approved for use with water intended for
human consumption.
NOTICE
When using means for descaling or chemical disinfection,
it must be ensured that the water quality remains compliant
with EU directive 98/83 EC.
Anode
No maintenance or replacement required.
2×
Brine leakage
Carefully check if brine leakage is noticeable around the inside of the
unit.
Open the sound insulation jacket and check if brine leakage is
noticeable inside this enclosed volume.
INFORMATION
To drain the tank, all the hot water tapping points need to
be opened to allow air to enter the system.
3
Open the drain valve.
12
Troubleshooting
12.1
Overview: Troubleshooting
This chapter describes what you have to do in case of problems.
It contains information about:
▪ Solving problems based on symptoms
▪ Solving problems based on error codes
Before troubleshooting
Carry out a thorough visual inspection of the unit and look for
obvious defects such as loose connections or defective wiring.
12.2
Precautions when troubleshooting
WARNING
▪ When carrying out an inspection on the switch box of
the unit, always make sure that the unit is disconnected
from the mains. Turn off the respective circuit breaker.
11.4
To drain the domestic hot water
tank
Prerequisite: Switch OFF the power supply.
Prerequisite: Turn OFF the cold water supply.
1
Open the front panel.
2
The drain hose is located at the right side of the unit. Cut the tie
wraps or tape and bring the flexible drain hose forward.
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▪ When a safety device was activated, stop the unit and
find out why the safety device was activated before
resetting it. NEVER bridge safety devices or change
their values to a value other than the factory default
setting. If you are unable to find the cause of the
problem, call your dealer.
DANGER: RISK OF ELECTROCUTION
Installer reference guide
61
12 Troubleshooting
12.3.2
WARNING
Prevent hazard due to the inadvertent resetting of the
thermal cut-out: this appliance must NOT be supplied
through an external switching device, such as a timer, or
connected to a circuit that is regularly turned ON and OFF
by the utility.
DANGER: RISK OF BURNING
12.3
Solving problems based on
symptoms
12.3.1
Symptom: The unit is NOT heating as
expected
Possible causes
The temperature setting is NOT
correct
Symptom: The compressor does NOT
start (space heating or domestic water
heating)
Possible causes
The unit must start up out of its
operation range (the water
temperature is too low)
▪ The power supply to the
backup heater is correctly
wired.
▪ The backup heater thermal
protector is NOT activated.
▪ The backup heater contactors
are NOT broken.
Check the temperature setting on
the remote controller. Refer to
the operation manual.
If the problem persists after you
have conducted all of the above
checks, contact your dealer.
The water or brine flow is too low Check and make sure that:
▪ The water filter is clean. Clean
if necessary.
▪ There is no air in the system.
Purge air if necessary. You
can purge air manually (see
"To perform a manual air
purge" on page 56) or use the
automatic air purge function
(see "To perform an automatic
air purge" on page 56).
▪ The water pressure is >1 bar.
The preferential kWh rate power This should match with the
supply settings and electrical
connections as explained in
connections do NOT match
"6.4 Preparing electrical
wiring" on page 21 and "7.6.6 To
connect the main power
supply" on page 30.
The preferential kWh rate signal
was sent by the electricity
company
12.3.3
If the problem persists after you
have conducted all of the above
checks, contact your dealer. In
some cases, it is normal that the
unit decides to use a low water
flow.
The water volume in the
installation is too low
Make sure that the water volume
in the installation is above the
minimum required value (see
"6.3.3 To check the water volume
and flow rate of the space
heating circuit and brine
circuit" on page 20).
Wait for the power to return (2
hours max.).
Symptom: The pump is making noise
(cavitation)
Possible causes
There is air in the system
▪ The expansion vessel is NOT
broken.
▪ The resistance in the water
circuit is NOT too high for the
pump.
If the water temperature is too
low, the unit uses the backup
heater to reach the minimum
water temperature first (15°C).
Check and make sure that:
Corrective action
▪ All shut-off valves of the water
or brine circuit are completely
open.
Corrective action
Corrective action
Purge air manually (see "To
perform a manual air purge" on
page 56) or use the automatic air
purge function (see "To perform
an automatic air purge" on
page 56).
The pressure at the pump inlet is Check and make sure that:
too low
▪ The pressure is >1 bar.
▪ The manometer is not broken.
▪ The expansion vessel is NOT
broken.
▪ The pre-pressure setting of the
expansion vessel is correct
(see "6.3.4 Changing the prepressure of the expansion
vessel" on page 21).
12.3.4
Symptom: The pressure relief valve opens
Possible causes
The expansion vessel is broken
Corrective action
Replace the expansion vessel.
The water or brine volume in the Make sure that the water or brine
installation is too high
volume in the installation is below
the maximum allowed value (see
"6.3.3 To check the water volume
and flow rate of the space
heating circuit and brine
circuit" on page 20 and
"6.3.4 Changing the pre-pressure
of the expansion vessel" on
page 21).
Installer reference guide
62
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12 Troubleshooting
Possible causes
Corrective action
The water circuit head is too high The water circuit head is the
difference in height between the
unit and the highest point of the
water circuit. If the unit is located
at the highest point of the
installation, the installation height
is considered 0 m. The maximum
water circuit head is 10 m.
12.3.7
Symptom: The pressure at the tapping
point is temporarily unusual high
Possible causes
Failing or blocked pressure relief ▪ Flush and clean the complete
valve.
tank including the piping
between pressure relief valve
and the cold water inlet.
▪ Replace the pressure relief
valve.
Check the installation
requirements.
12.3.5
Symptom: The pressure relief valve leaks
Possible causes
Dirt is blocking the water
pressure relief valve outlet
▪ If you do NOT hear a clacking
sound, contact your dealer.
▪ If the water or brine keeps
running out of the unit, close
both inlet and outlet shut-off
valves first and then contact
your dealer.
12.3.6
Symptom: The space is NOT sufficiently
heated at low outdoor temperatures
Possible causes
The backup heater operation is
not activated
12.3.8
Corrective action
Check whether the pressure
relief valve works correctly by
turning the red knob on the valve
counterclockwise:
Symptom: Decoration panels are pushed
away due to a swollen tank
Possible causes
12.3.9
Symptom: Tank disinfection function is
NOT completed correctly (AH-error)
Possible causes
Large domestic hot water tapping
happened recently before the
programmed start-up of the
disinfection function
▪ The backup heater operation
mode is enabled. Go to:
▪ [A.5.1.1] > Installer settings
> Heat sources > Backup
heater > Operation mode
OR
▪ The air purge operation
Press the reset button in the
switch box. See
"14.3 Components" on page 69
for the location of the reset
button.
The backup heater equilibrium
temperature has not been
configured correctly
Increase the "equilibrium
temperature" to activate the
backup heater operation at a
higher outdoor temperature. Go
to:
▪ [A.5.1.4] > Installer settings >
Heat sources > Backup heater
> Equilibrium temp. OR
When the Domestic hot water >
Type > Reheat or Reheat +
sched. is selected, it is
recommended to program the
start-up the disinfection function
at least 4 hours later than the last
expected large hot water tapping.
This start-up can be set by
installer settings (disinfection
function).
When the Domestic hot water >
Type > Scheduled only is
selected, it is recommended to
program a Storage eco 3 hours
before the scheduled start-up of
the disinfection function to
preheat the tank.
▪ [A.8] > Installer settings >
Overview settings [4‑00]
▪ Whether there is air in the
system
Corrective action
The disinfection function was
Program the start-up of the
interrupted by domestic hot water disinfection function when the
tapping
coming 4 hours NO domestic hot
water tapping is expected.
Corrective action
▪ The space heating and brine
circuit pressure
Corrective action
Failing or blocked pressure relief Contact your local dealer.
valve.
Check and make sure that:
▪ The thermal protector of the
backup heater has not been
activated. If it has, check:
Corrective action
The disinfection operation was
stopped manually: with the user
interface displaying the DHW
home page and its user
permission level set to Installer,
the
button was pressed
during disinfection operation.
12.4
Do NOT press the
button
while the disinfection function is
active.
Solving problems based on error
codes
When a problem happens, an error code appears on the user
interface. It is important to understand the problem and to take
countermeasure before resetting the error code. This should be
done by a licensed installer or by your local dealer.
This chapter gives you an overview of all error codes and the
content of the error code as it appears on the user interface.
For a more detailed troubleshooting guideline for each error, please
see the service manual.
▪ [A.8] > Installer settings >
Overview settings [5‑01]
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
63
12 Troubleshooting
12.4.1
Error codes: Overview
Error codes of the unit
Error code
E1
Detailed error
code
Description
00
OU: PCB defect.
Error code
Detailed error
code
Description
L4
00
OU: Malfunction of inverter
radiating fin temperature rise.
Please contact your dealer.
L5
00
Power reset required.
overcurrent (DC).
Please contact your dealer.
E3
00
OU: Actuation of high pressure
Please contact your dealer.
P4
00
switch (HPS).
00
OU: Overheat of inverter
OU: Malfunction of radiating
fin temperature sensor.
Please contact your dealer.
E5
OU: Inverter instantaneous
Please contact your dealer.
U0
02
U2
00
Refrigerant shortage
compressor motor.
Please contact your dealer.
E7
62
Brine flow Abnormality
Please contact your dealer.
Please contact your dealer.
OU: Defect of power supply
voltage.
Please contact your dealer.
E9
00
H0
01
Expansion valve abnormality.
U4
00
Please contact your dealer.
Indoor/outdoor unit
communication problem.
Brine flow switch malfunction
Please contact your dealer.
A1
00
Zero cross detection problem.
Power reset required.
H3
00
OU: Malfunction of high
pressure switch (HPS)
Please contact your dealer.
AA
01
Please contact your dealer.
H9
00
Power reset required.
OU: Malfunction of outdoor
air thermistor.
Please contact your dealer.
UA
00
Please contact your dealer.
F3
00
Indoor unit, outdoor unit
matching problem.
OU: Malfunction of discharge
pipe temperature.
Backup heater overheated.
Power reset required.
7H
01
Water flow problem.
89
01
Heat exchanger frozen.
8H
00
Abnormal increase outlet
Please contact your dealer.
J1
00
High pressure sensor
abnormality.
Please contact your dealer.
JA
00
OU: Malfunction of high
pressure sensor.
Please contact your dealer.
J3
00
water temperature.
OU: Malfunction of discharge
pipe thermistor.
8F
00
Please contact your dealer.
J6
00
water temperature (DHW).
OU: Malfunction of heat
exchanger thermistor.
C0
00
Please contact your dealer.
J7
12
Please contact your dealer.
U3
00
Please contact your dealer.
07
Please contact your dealer.
00
OU: Electrical box temperature
Under floor heating screed
dryout function not completed
Brine outlet thermistor
abnormality
L3
Flow sensor/switch malfunction.
Brine inlet thermistor
abnormality
J8
Abnormal increase outlet
correctly.
81
00
Leaving water temperature
sensor problem.
Please contact your dealer.
rise problem.
Please contact your dealer.
Installer reference guide
64
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
13 Disposal
Error code
Detailed error
code
Description
INFORMATION
C4
00
Heat exchanger temperature
In case of error code AH and no interruption of the
disinfection function occurred due to domestic hot water
tapping, following actions are recommended:
sensor problem.
▪ When the Domestic hot water > Type > Reheat or
Reheat + sched. is selected, it is recommended to
program the start-up of the disinfection function at least
4 hours later than the last expected large hot water
tapping. This start-up can be set by installer settings
(disinfection function).
Please contact your dealer.
80
00
Returning water temperature
sensor problem.
Please contact your dealer.
U5
00
User interface
▪ When the Domestic hot water > Type > Scheduled only
is selected, it is recommended to program a Storage
eco 3 hours before the scheduled start-up of the
disinfection function to preheat the tank.
communication problem.
EC
HC
00
00
Abnormal increase tank
temperature.
NOTICE
Tank temperature sensor
When the minimum water flow (in relation to the applicable
operation mode) is lower than described in the table below,
the unit will stop operation and the user interface will
display error 7H.
problem.
Please contact your dealer.
CJ
02
Room temperature sensor
problem.
Please contact your dealer.
H1
00
Minimum required flow
Heat pump operation 10 l/min
Backup heater
operation
External temperature
INFORMATION
sensor problem.
Error AJ-03 is reset automatically from the moment there is
a normal tank heat-up.
Please contact your dealer.
89
02
12 l/min
Heat exchanger frozen.
INFORMATION
A1
01
EEPROM reading error.
AH
00
Tank disinfection function not
In case of an E7‑62 error, brine pump operation stops due
to not enough flow in the brine circuit. If 10‑day brine pump
operation is running, it will stop running and will only
resume once the error is reset. It is only possible to reset
the error with the domestic hot water home screen or the
leaving water temperature home screen turned ON. To
reset the error, press
and confirm by pressing
.
completed correctly.
89
03
Heat exchanger frozen.
13
Disposal
Dismantling of the unit, and treatment of the refrigerant, oil and other
parts must comply with the applicable legislation.
AJ
03
Too long DHW heat-up time
required.
INFORMATION
▪ Indoor unit relates to indoor unit PCB which controls
the hydraulic part of the ground source heat pump.
▪ Outdoor unit relates to outdoor unit PCB which controls
the compressor module of the ground source heat
pump.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
65
14 Technical data
14
Technical data
Latest information can be found in the technical engineering data.
14.1
Overview: Technical data
This chapter contains information about:
• Dimensions and service space
• Centre of gravity
• Components
• Piping diagram
• Wiring diagram
• ESP curve
14.2
Dimensions and service space
14.2.1
Dimensions and service space: Indoor unit
225
761
728
199
450
5m
189
p
o
t
8 mm
m
PH2
T25
PH2
60
101
75
152
301
199
75
40
150
u
300
600
ln
10
g h
j
a
r
b
w
1740
1775
R2
mk i
s
d
820
c
v
x
288
228
45
q
y
f
e
v
q
3D081375-1C
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
Pressure gauge brine circuit
Pressure gauge water circuit
Safety valve brine circuit
Safety valve water circuit
Drain valve brine circuit
Drain valve water circuit
Water filter brine circuit
Water filter water circuit
Water IN connection 22 mm straight
Water OUT connection 22 mm straight
Tank IN connection 22 mm straight
Tank OUT connection 22 mm straight
Brine IN connection 28 mm straight
Brine OUT connection 28 mm straight
Control wiring intake (Ø24 mm)
Power supply wiring intake (Ø24 mm)
Installer reference guide
66
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
14 Technical data
q
r
s
t
u
v
w
x
y
Leveling feet
User interface (option RKRUCBL*)
Drain valve tank circuit
Recirculation connection G 1/2 female
Hole for recirculation piping or option wiring (Ø62 mm)
Drain outlet (unit+safety valve)
Air purge
Expansion vessel brine circuit
Expansion vessel water circuit
Centre of gravity. Note: Centre of gravity with an empty tank.
Note 1: Typical field installation is according to local and national regulations.
Note 2: A flexible hose is pre-assembled to the drain outlet. The exit of the flexible hose is at the backside of the unit. The flexible hose can be
removed.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
67
≥10
≥300
≥50
≥50
≥10
14 Technical data
≥500
3D081380-1A
Installer reference guide
68
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
14 Technical data
14.3
Components
14.3.1
Components: Switch box (indoor unit)
j
m q
h
d
a
n
YC Y1 Y2 Y3 Y4
A4P
A1P
A8P
X5M
X2M
c
K5M
Q1L
d
j
o
b
i
X6YB
X6YA X6Y
F1B
f
e
j
A9P
k
r
r
g
j
X1M
p
l
A10P
p
p
s
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
Main PCB (water) A1P
Backup heater thermal protector Q1L
Transformer TR1
Backup heater contactors K1M, K2M and K5M
Backup heater circuit breaker F1B
Connectors X6YA/X6YB/X6Y
Terminal block X1M (power supply)
Terminal block X2M (high voltage)
Terminal block X5M (low voltage)
Cable tie mountings
Main PCB (refrigerant, brine) A9P
Main PCB (inverter) A10P
Digital I/O PCB A4P (optional)
Demand PCB A8P (optional)
Brine pump contactor K6M. Note: Only 4 of the 5 connection points
are used.
Reactors
PCB fuse A1P (FU1)
PCB fuse A9P (F1U, F2U)
PCB fuse A10P (F1U)
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
69
14 Technical data
14.4
Piping diagram
14.4.1
Piping diagram: Indoor unit
Refrigerant
Brine side
Water side
INSIDE OF UNIT -FACTORY INST ALLED
PRESSURE
SAFET Y GAUGE
VALVE
PRESSURE
SAFET Y GAUGE
VALVE
FIELD SUPPLIED
BLOW
OFF
(*)
BLOW
OFF
SHUT
OFF
VALVE
FILT ER
high
high
R3T
pressure pressure
outdoor COMPRESSOR R2T sensor switch
t>
t>
P
P
R5T
outdoor
PUMP
t>
flow
switch
FIELD SUPPLIED
R2T
indoor
R1T
indoor
check
valve
t>
t>
BACK UP
HEAT ER
MUFFLER
(*)
To DHW circuit
SHUT
OFF
VALVE
3-WAY
VALVE
flow
sensor
PUMP
drain
FIELD SUPPLIED (*)
PLAT E
HEAT
EXCHANGER
(Evaporator)
PLAT E
HEAT
EXCHANGER
(Condenser)
service port
FIELD SUPPLIED
SAFET Y
VALVE
EXPANSION
VESSEL
DHW
T ANK
t>
EXPANSION
VESSEL
R6T
SHUT
OFF
VALVE
t>
MOT OR
R4T OPERAT ED R3T
outdoor VALVE indoor
M
t > FILT ER
t>
FIELD SUPPLIED
R4T
indoor
drain
t>
FILT ER
heat sink
inverter PCB
drain
BLOW
OFF
NRV
service port
AIR
PURGE
(*)
R5T indoor
FILLING VALVE
KIT
drain
(*)
SHUT
OFF
VALVE
EXPANSION
VESSEL
FILL
VALVE
To Space Heating
Circuit
(*) Depicted is example, for complete installation requirements, refer to installation manual
Descriptio n senso rs
To ground loop
LEGEND:
CHECK VALVE
SCREW CONN.
FLARE CONN.
QUICK COUPLING
SPINNED PIPE
FLANGE CONN.
PINCHED PIPE
Installer reference guide
70
BRAZED CONN.
R1T in
Outlet Water Temperature Senso r (LWC)
R2T in
A fter B UH Temperature Senso r
R3T in
Refrigerant Liquid Temperature Senso r
R4T in
Inlet Water Temperature Senso r (EWC)
R5T in
DHW Tank Temperature Senso r
R1T o ut
A mbient A ir Senso r
R2T o ut
discharge senso r
R3T o ut
suctio n senso r
R4T o ut
2 phase senso r (Tx)
R5T o ut
brine entering water
R6T o ut
brine leaving water
3D081374-1A page 1
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
14 Technical data
14.5
Wiring diagram
14.5.1
Wiring diagram: Indoor unit
See the internal wiring diagram supplied with the unit (on the inside of the indoor unit switch box cover). The abbreviations used are listed
below.
Position in switch box
A1P
A8P
TR1
A4P
K6M
X5M X7M X2M
K1M
K2M
K5M
Q1L
X6Y
A9P
F1B
X1M
A10P
L3R
L2R
L1R
User installed options:
Remote user interface
External indoor thermistor
Digital I/O PCB
Demand PCB
Brine pressure switch connection kit
Main leaving water temperature:
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
External thermistor on On/OFF thermostat (wireless)
Heat pump convector
Additional leaving water temperature:
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
External thermistor on On/OFF thermostat (wireless)
Heat pump convector
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
71
14 Technical data
Remote
user interface
User interface
A2P
A2P
R1T
R1T
-t°
-t°
P1 P2
Switch
box
Digital I/O PCB
1 2
R6T
1
2
P1 P2
5 6
X5M
-t°
ext. indoor
ambient
sensor option
X5M
A1P
A4P
X33A:1
CN2:1
ON
OFF
SS1
CN1:1
F2U
3
F1U
X18A:1
X22A:1
2
2
2
3
4
4
X6A:1
5
5
2
6
6
X1 X2
YC
Y1
R2T
-t°
R3T
X7A:1
X40A:1
KHUR
-t°
2
2
3
KCR
KHR
R1T
X5A:1
-t°
2
2
3
Y2
4
X8A:1
5
2
R4T
-t°
6
28
29
Ext. heat
source (*)
(*)
Max. load
0.3 A - 250 V AC
Min. load
20 mA - 5 V DC
Options: boiler output, alarm output, On/OFF output
Only for digital I/O PCB option
-t°
2
3 4 7 8 9 10 X5M
X4A:1
Preferential kWh
rate power supply
contact:
16 V DC detection
(voltage supplied
by PCB)
2
X85A:1 2
3 4
5
B1L
L N
21
Switch
box
R5T
X9A:1
S3S
X2M.7
X2M
7
8
S2S
X2M.3
Space C/H
On/OFF
output(*)
S1S
Alarm
output(*)
3
6
4
Electric pulse
meter inputs:
5 V DC
pulse detection
(voltage supplied
by PCB)
A8P
X80A:1
ON
OFF
2
3
4
5
6
7
8
9 10 11 12
DS1
1234
1 2 3 4 5 X801M
S6S
S7S
S8S
S9S
Demand PCB
Power limitation
digital inputs:
12 V DC /
12 mA detection
(voltage supplied
by PCB)
Only for demand PCB option
4D081377-1A_page 4
Installer reference guide
72
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
14 Technical data
L5R
A9P.X803A.3
A9P.X803A.5
30 31
X2M
Q1L
X2M
-t°
PC
5 6
A3P
X11M
3
KVR
E
X2M.3
X2M.4
-t°
only for ext.
sensor(floor
or ambient)
X2M 5 6 7
Heatpump convector
Heatpump convector
Main LWT zone
Add LWT zone
2
X20A:1 3 5
X25A:1
3 NO valve
X16A:5
3
1 X15A:1
3
K2R
X11A:3
1 X12A:3
1
A1
A1
X2M.28
34 35
Switch box
NO
M2S
2 3 4 5 6
K1R
X2M.21
N
5 6
A3P
X28A:1
K6R
NC
M3S
3 wire type
(SPDT)
M1P
MS
X2M
PE
6
X3A:1
X26A:1 2 X31A:1 3
GND
PWM
L
N
only for wireless
On/OFF thermostat
R2T
X2M.4
X2M.1
X2M.4
only for ext.
sensor(floor
or ambient)
3 5
M
M2P 1~
A2
A2
K1M
K2M
DHW pump output
Max. load:
2 A (inrush) - 230 V AC
1 A (continuous)
DHW pump
X2M.7
-t°
X2A:1 3 5
BLK
BLU
BRN
A3P
R2T
X19A:1
FU2
X1M
R1T R1H
-t° %H20
X2M.1a
only for wireless
On/OFF thermostat
X11M
A4P
L N
A3P
1
X24A:1
3
5
7
X2M.7
H C COM
X1M
R1T R1H
-t° %H20
X2M
KPR
X2M.3
X2M.4
X2M.1a
X2M.2a
6
X2M.3
X2M.4
only for wired On/OFF thermostat
5
X2M.1
X2M.2
only for wired On/OFF thermostat
5
1
2
1a
2a
3
4
R1T
PC
X17A:1 X1A:3
FU1
3
5
7
X2M
C COM H
-t°
L N
1
KCR
X2M.4
X2M.1a
A3P
R1T
H C COM
X6YA
X6Y
1
X2M.5
C COM H
A4P
K5M
A2
29 21
A1P
X2M.2a
X2M.2
X2M.4
X2M.1
6
A3P
12
A1
X6YA
X6YB
X6Y
5
11
TR1
X6YB
30 31
31
32
X2M.28
X2M.3
L N
Q2DI
Only for normal power supply
(standard)
1N~, 50 Hz
230 V AC
Normal kWh rate
power supply
L5R
A9P.X803A.3
A9P.X803A.5
Only for preferential kWh rate power supply
M2S
3
NC valve
Shut-off valve
4D081377-1A_page 5
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
73
L1 L2 L3 N
3N~, 50 Hz
400 V AC
Q1DI
Switch box
A1P.X19A.1
A1P.X19A.3
A1P.X19A.5
14 Technical data
L1 L2 L3 N
X5M
WHT
-t°
11 12
BLK
L1A
L2A
F1U
F2U
Z6C
N=1
BLU
L3A
NA
E1
F6U
E
X803A:1 3
R4T
-t°
Backup heater as 3 kW / 9 kW
-t°
R5T
R6T
Switch box
5
X11A:1 3
X12A:1 2 3 4 5 6 7 8
A9P X2H
1 2 3
X1H
RED
WHT
BLK
L1R
L2R
K2M
F5U
L21A
L21B
X8A:1
3 5 7
Z4C
N=2
L3R
H1P H3P H5P H7P
F3U
F4U
L31A
L31B
L22A
L32A
BS1
Z5C
N=3
X103A:1 3 5 7
ON
OFF
K4R
X18A:1 2 3 4
C1
X28A:1
1
3
5
2
4
ON
OFF
5
4
6
6
5
3
2
I
4
I
6
1
3
5
4
X1M.L1
X1M.L2
X1M.L3
Switch box
X7M
1
2
M
Switch box
BLK
3
2
M
M3P 1~
7
K1E
W
Z3C
N=6
1
3
BLK
RED
WHT
123
V1R
V
K1M
7
HAP
DS1
WHT
6
S1L
2
RED
3 X77A:1
B1PH
C2
U
5
4
F1B
I
X17A:1 2 3 4
3
2
1
X104A:1 2 3 4 5
K84R
X111A:1
-t°
1 2
BS3
X21A:1 2 3 4 5 6
PS
R1
X32A:1
2
R10T
DS1
BS4
K5M
1
K6M
V2R
Switch
box
BS2
HAP
A10P
Z3F
S1PH
P>
H2P H4P H6P
X4A:1 2 3 4 5
Z2C
N=2
L12A
4 5 6
X2H
Z4F
Z2F
L11A
1 2 3 4 5 6 7 8 9
X13A:1 2
Z1F
L11B
E1H E1H E1H
E2H E2H E2H
-t°
R2T
Z5F
Z1C
N=1
-t°
R3T
C3 C4
L5R
GRN/YEL
outdoor ambient
sensor
-t°
X1M
/ F1B.2
/ F1B.4
/ F1B.6
RED
R1T
1
2
X1Y
X7Y
S1L
M1C MS
3~
1 2 3 4
S1P P<
5 V DC / 0,05 mA
detection (voltage
supplied by PCB)
Only for brine pressure switch connection kit
4D081377-1A_page 6
A1P
Main PCB (hydrobox)
HAP
LED
A2P
User interface PCB
K1E
Electronic expansion valve
A3P
*
On/OFF thermostat
K1M, K2M
Contactor backup heater
A3P
*
Heat pump convector
K5M
Safety contactor backup heater
A4P
*
Digital I/O PCB
K6M
Relay
A4P
*
Receiver PCB (Wireless On/OFF
thermostat, PC=power circuit)
K*R
Relay on PCB
L1R~L3R
Reactor
Demand PCB
L5R
Reactor transmission line
A9P
Main PCB (refrigerant, brine)
M1C
Motor (compressor)
A10P
Main PCB (inverter)
M1P
B1L
Flow sensor
M2P
B1PH
High pressure sensor
M3P
BS1~BS4
Push button
M2S
C1~C4
Capacitor
M3S
A8P
*
CN* (A4P)
*
Connector
DS1 (A8P)
*
Main water supply pump
#
Domestic hot water pump
#
Shut-off valve
Brine supply pump
3-way valve for floor heating/domestic hot
water
DIP switch
PS
DS1 (A9P)
DIP switch
Q*DI
DS1 (A10P)
DIP switch
Q1L
Thermal protector backup heater
E1H
Backup heater element (1 kW)
R1
Resistor
E2H
Backup heater element (2 kW)
R1T (A1P)
Outlet water heat temperature sensor
(leaving water condenser)
R1T (A2P)
Ambient sensor user interface
F1B
F1U, F2U (A4P)
Switching power supply
#
Overcurrent fuse backup heater
*
Fuse 5 A 250 V
Fuse 35.5 A 500 V
R1T (A3P)
Fuse T, 6.3 A 250 V
R1T (A9P)
Ambient air sensor
FU1 (A1P)
Fuse T, 6.3 A 250 V
R2T (A1P)
After backup heater temperature sensor
H1P~H7P
LED
F1U, F2U (A9P)
F3U~F6U (A9P)
R2T (A3P)
R2T (A9P)
Installer reference guide
74
*
Earth leakage circuit breaker
*
Ambient sensor On/OFF thermostat
External sensor (floor or ambient)
Discharge sensor
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
14 Technical data
R3T (A1P)
Refrigerant liquid side thermistor
R3T (A9P)
Suction sensor
R4T (A1P)
Inlet water temperature sensor (entering
water condenser)
R4T (A9P)
2-phase sensor (Tx)
R5T (A1P)
Domestic hot water tank temperature sensor
R5T (A9P)
R6T (A1P)
Brine entering water
*
R10T
R1H (A3P)
External indoor ambient thermistor
Brine leaving water
R6T (A9P)
Heat sink thermistor
*
S1L
Humidity sensor
Brine flow switch
S1P
#
S1PH
Water pressure switch brine side
High pressure switch
S1S
#
Preferential kWh rate power supply contact
S2S
#
Electrical meter pulse input 1
S3S
#
Electrical meter pulse input 2
S6S~S9S
#
Digital power limitation inputs
SS1 (A4P)
*
Selector switch
TR1
Power supply transformer
V1R, V2R
Insulate gate bipolar transistor power
module
X*H
Backup heater connector
X*M
Terminal strip
X*Y
Connector
Z1C~Z6C
Noise filter (ferrit core)
Z1F~Z5F
Noise filter
*=
Optional
#=
Field supply
Notes to go through before starting the unit
English
Translation
X1M
Main terminal
X2M
Field wiring terminal for AC
X5M
Field wiring terminal for DC
Earth wiring
Field supply
15
Wire number 15
**/12.2
Connection ** continues on page
12 column 2
1
Several wiring possibilities
Option
Not mounted in switch box
Wiring depending on model
PCB
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
75
14 Technical data
1
Only for normal power supply (standard)
X1A:3 1 X19A:1
X6Y
X6YB
A1P
3 5
X1M
X6YA
X2M 30 31
X5M
L1 L2 L3
3 4
X19A:1 3 5
L1 L2 L3 N
Q2DI
L N
L1 L2 L3
N
L1 L2 L3 N
Preferential
kWh rate
power supply
contact:
16 V DC detection
(voltage supplied
by PCB)
3N~, 50 Hz
400 V AC
Normally open
X2M 5 6 7
X1 X2
Switch box
DHW pump
output
Max. load:
2 A (inrush) 230 V AC
1A (continuous)
DHW pump
X5M
7 8 9 10
Y1
ON
OFF
X801M 1 2 3 4 5
KHUR
DS1
1 2 3 4
Y2
Space heating
On/OFF
output (*)
L N
21
28
29
(*) Max. load:
0.3 A - 250 V AC
Min. load:
20 mA - 5 V DC
Power limitation
digital inputs:
12 V DC / 12 mA
detection (voltage
supplied by PCB)
Only for demand PCB option
Options: boiler output, alarm output, On/OFF output
Only for digital I/O PCB option
(8) Option for brine pressure switch
connection kit
(7) External room thermostats and heat pump convector
Main LWT zone
5
C
1 2 3 4 X2M
H
C
A4P
H C COM
C COM H
R1T
only for wired
thermostat
Additional LWT zone
1a 2a
C
3 4 X2M
L N
1a 2a
H C
only for wired
thermostat
1 4 X2M
5
L N
PC
only for wireless thermostat
X18A:1 2 3 4
A9P
Switch box
S1L
-t°
A3P
only for
external sensor
(floor/ ambient)
7
6
1a
4 X2M
X18A:1 2 3 4
A3P
-X1Y
R2T
-t°
S1L
only for heat
pump convector
A9P
X7M
1
2
6
5 6 X11M
X1M
R1H
R1T %H20
-t°
7
A3P
5 6 X11M
only for heat
pump convector
A4P
H C COM
-t°
5
R2T
3 4 X2M
A3P
R1T
only for
external sensor
(floor/ambient)
only for wireless
thermostat
6
C COM H
A3P
X1M
R1H
R1T %H20
-t°
PC
-t°
Switch box
Electrical meters
X80A:1 2 3 4 5 6 7 8 9 10 11 12
Switch box
Ext. heat
source (*)
-t°
H
5 V DC
pulse
detection
(voltage
supplied by
PCB)
YC
A8P
A4P
SS1
X2M
A3P
X2M 34 35
M2S
Normally closed
Shut-off valve
KHR
Alarm
output (*)
1 2 3 4 X2M
S3S
230 V AC
supplied
by PCB
3
Only for
Remote user
interface option
R6T
H
M
M2P 1~
M2S
User
interface
KCR
5 6
S1S
Q1DI
S2S
230 V AC
supplied
by PCB
P1P2
X5M
Switch
box
(6) Field supplied options
3
P1P2
ON
OFF
F1U
F2U
A2P
1 2
1N~, 50 Hz
230 V AC; 6,3 A
Normal kWh rate
power supply
X2M 5 6 7
A2P
(3) Option external
indoor ambient sensor
X5M 3 4
X1M
Switch box
1
A1P
X6YA
X2M 30 31
CN2:1 2 3 4 5 6 CN1:1 3
-t°
Only for preferential kWh rate power supply
Use normal kWh rate power supply for hydro PCB
X6Y
X6YB
Switch box
R1T
3N~, 50 Hz
400 V AC
X85A:1 2 3 4 5 6
X5M
11 12
Q1DI
A1P
X33A:1 2 3 4 5 6
1 2
Switch box
N
(5) Option PCBs
(4) User interface
X5M
1 2
Switch box
X1A:3 1
(2) Outdoor ambient
sensor
S6S
S7S
S8S
S9S
(1) Main power connection
1 2 3 4
Switch box
S1P P<
5 V DC / 0,05 mA
detection (voltage
supplied by PCB)
Only for brine pressure switch connection kit
4P355433-1A_page 4
Installer reference guide
76
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
14 Technical data
Electrical meter specification
▪ Pulse meter type / voltage free contact for 5 V DC detection by
PCB
▪ Possible number of pulse:
▪ 0.1 pulse/kWh
▪ 1 pulse/kWh
▪ 10 pulse/kWh
▪ 100 pulse/kWh
▪ 1000 pulse/kWh
▪ Pulse duration
▪ minimum On time 40 ms
▪ minimum OFF time 100 ms
▪ Measurement type (depending on installation):
▪ single phase AC meter
▪ three phase AC meter (balanced loads)
▪ three phase AC meter (unbalanced loads)
Electrical meter installation guideline
▪ General: it is the responsability of the installer to cover the
complete power consumption with electrical meters (combination
of estimation and metering is not allowed)
▪ Required number of electrical meters:
Electrical meter type
1~
Regular kWh rate power
supply
—
3~ balanced
1
3~ unbalanced
—
Electrical meter type
1~
Benefit kWh rate power supply
1
3~ balanced
1
3~ unbalanced
—
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
77
14 Technical data
Standard parts
Power supply
1 Only for normal power supply installation
unit power supply: 400 V + earth
1 Only for preferential kWh rate power supply installation
unit preferential kWh rate power supply:
5 core
400 V + earth
normal kWh rate power supply for indoor unit: 230 V + earth
3 core
2 core
Preferential kWh rate power supply contact
Indoor unit
5 core
2x0.75
X1M: L1-L2-L3-N-earth
X2M: 30-31-earth
X5M: 11-12
X5M: 3-4
2 core
Outdoor ambient sensor
*KRSCA1
signal
Field supply
Only for *KRP1HB*
A4P: Y1
X2M: 29
Alarm output
A4P: X1-X2
Changeover to
ext. heat source output
Field supply
Only for *KGSCONBP1
Pressure swith within
brine side
2 core
Signal
X7M : 1 - 2
2 core
230 V
2 core
signal
A4P: Y2
X2M: 29
Space heating
On/OFF output
2 core
X2M: 34-35
2 core
NO valve: X2M: 6-7
230 V
230 V
2 core
230 V
X5M: 7-8
X5M: 9-10
2 core
signal
2 core
signal
alarm indication
Ext. heat source (eg boiler)
Space heating
On/OFF output
Circulation pump
for DHW
Shut off valve
main zone
shut off valve
Electricity meter
pulse input 1
Electricity meter
pulse input 2
Only for KRCS01-1
X5M: 5-6
2 core
230 V
External indoor
ambient thermistor
External room thermostat / Heat pump convector
Optional part
(main and/or additional zone)
2
main: X2M: 1-4
add: X2M: 1a-4
Field supply
Only for *KRP1AHTA
Power limitation
demand input 1
Power limitation
demand input 2
Power limitation
demand input 3
Power limitation
demand input 4
2 core
230 V
2 core
230 V
2 core
230 V
2 core
230 V
A8P: X801M: 3-5
230 V
2
main: X2M: 1-3-4
add: X2M: 1a-3-4
A8P: X801M: 1-5
A8P: X801M: 2-5
2 core
4 core
230 V
2
main: X2M: 1-4
add: X2M: 1a-4
2 core
230 V
A3P: X1M: com-H
Only for *KRTR
(wireless room thermostat)
A4P: X1M: H-com
X2M: L-N
2 core
(3m included)
A3P: X1M: 1-3
Only for *KRTETS
R2T
External sensor
(floor or ambient)
signal
Only for
(heat pump convector)
X11M: 5-6
A8P: X801M: 4-5
X5M: 1-2
2 core
2x0.75
communication
2 core
2x0.75
Note:
Only for *KRTW
(wired room thermostat)
communication
In case user interface is relocated
A2P: P1-P2 user interface
Only for *KRUCBL*
Optional part
A2P: P1-P2 user interface
- In case of signal cable: keep minimum distance to power cables > 5 cm
4D081378-1A
Installer reference guide
78
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
14 Technical data
14.6
ESP curve
14.6.1
ESP curve: Indoor unit
A (kPa)
C (kPa)
80
100
90
70
80
60
70
50
60
50
40
40
30
30
20
20
10
0
10
8 10
0
20
30
40
50
B (l/min)
0
25
30
35
40
45
50
55
60
65
B (l/min)
3D081379-1B
A
B
C
External static pressure (space heating side)
Water flow rate
External static pressure (brine side)
Water
Mixture water/propylene glycol (40 V%) at entering brine temperature –5°C
Mixture water/ethanol (29 M%) at entering brine temperature –5°C
Note: Selecting a flow outside the area of operation can cause
damage or malfunction of the unit.
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
Installer reference guide
79
15 Glossary
15
Glossary
Dealer
Sales distributor for the product.
Authorized installer
Technical skilled person who is qualified to install the
product.
User
Person who is owner of the product and/or operates the
product.
Applicable legislation
All international, European, national and local directives,
laws, regulations and/or codes that are relevant and
applicable for a certain product or domain.
Service company
Qualified company which can perform or coordinate the
required service to the product.
Installation manual
Instruction manual specified for a certain product or
application, explaining how to install, configure and maintain
it.
Operation manual
Instruction manual specified for a certain product or
application, explaining how to operate it.
Accessories
Labels, manuals, information sheets and equipment that are
delivered with the product and that need to be installed
according to the instructions in the accompanying
documentation.
Optional equipment
Equipment made or approved by ROTEX that can be
combined with the product according to the instructions in
the accompanying documentation.
Field supply
Equipment not made by ROTEX that can be combined with
the product according to the instructions in the
accompanying documentation.
Installer reference guide
80
RGSQH10S18AA9W
ROTEX HPU ground
4P374245-1A – 2015.10
1/7
Field settings table
[6.8.2] = .... ID4302/4562
Applicable indoor units
*GSQH10S18AA9W
ThermaliaC12*
Notes
-
4P359382-1D - 2015.02
2/7
Field settings table
Breadcrumb
Field code
Setting name
Range, step
Default value
User settings
└─ Preset values
└─ Room temperature
7.4.1.1
Comfort (heating)
7.4.1.2
R/W
Eco (heating)
R/W
7.4.2.1
[8-09]
└─ LWT main
Comfort (heating)
R/W
7.4.2.2
[8-0A]
Eco (heating)
R/W
7.4.2.5
Comfort (heating)
R/W
7.4.2.6
Eco (heating)
R/W
7.4.3.1
[6-0A]
└─ Tank temperature
Storage comfort
R/W
7.4.3.2
[6-0B]
Storage eco
R/W
[6-0C]
Reheat
R/W
7.4.3.3
7.7.1.1
└─ Set weather dependent
└─ Main
[1-00]
Set weather-dependent heating
7.7.1.1
[1-01]
Set weather-dependent heating
7.7.1.1
[1-02]
Set weather-dependent heating
7.7.1.1
[1-03]
Set weather-dependent heating
7.7.2.1
[0-00]
└─ Additional
Set weather-dependent heating
7.7.2.1
[0-01]
Set weather-dependent heating
7.7.2.1
[0-02]
Set weather-dependent heating
7.7.2.1
[0-03]
Set weather-dependent heating
Low ambient temp. for LWT main zone heating
WD curve.
High ambient temp. for LWT main zone heating
WD curve.
Leaving water value for low ambient temp. for
LWT main zone heating WD curve.
Leaving water value for high ambient temp. for
LWT main zone heating WD curve.
R/W
Leaving water value for high ambient temp. for
LWT add zone heating WD curve.
Leaving water value for low ambient temp. for
LWT add zone heating WD curve.
High ambient temp. for LWT add zone heating
WD curve.
Low ambient temp. for LWT add zone heating
WD curve.
R/W
Installer settings
└─ System layout
└─ Standard
A.2.1.1
[E-00]
Unit type
R/W
R/W
R/W
R/W
R/W
R/W
R/O
A.2.1.2
A.2.1.3
A.2.1.5
A.2.1.6
[E-01]
[E-02]
[5-0D]
[D-01]
Compressor type
Indoor software type
BUH type
Preferential kWh rate
R/O
R/O
R/O
R/W
A.2.1.7
[C-07]
Unit control method
R/W
A.2.1.8
[7-02]
Number of LWT zones
R/W
A.2.1.9
[F-0D]
Pump operation mode
R/W
A.2.1.A
A.2.1.B
[E-04]
Power saving possible
User interface location
R/O
R/W
A.2.2.4
[C-05]
└─ Options
Contact type main
R/W
A.2.2.5
[C-06]
Contact type add.
A.2.2.6.1
[C-02]
Digital I/O PCB
Ext. backup heat src
R/W
A.2.2.6.2
A.2.2.6.3
[D-07]
[C-09]
Digital I/O PCB
Digital I/O PCB
Solar kit
Alarm output
R/O
R/W
A.2.2.7
[D-04]
Demand PCB
R/W
A.2.2.8
[D-08]
External kWh meter 1
R/W
A.2.2.9
[D-09]
External kWh meter 2
R/W
A.2.2.A
[D-02]
DHW pump
R/W
A.2.2.B
[C-08]
External sensor
R/W
A.2.2.D
[E-0B]
A.2.3.2
[6-03]
Bi-zone kit
└─ Capacities
BUH: step 1
A.2.3.3
[6-04]
BUH: step 2
R/W
Is a bi-zone kit installed?
Space operation
└─ LWT settings
└────────────────── Main
4P359382-1D - 2015.02
R/O
R/W
R/W
Installer setting at variance with
default value
Date
Value
[3-07]~[3-06], step: A.3.2.4
21°C
[3-07]~[3-06], step: A.3.2.4
19°C
[9-01]~[9-00], step: 1°C
55°C
[9-01]~[9-00], step: 1°C
45°C
-10~10°C, step: 1°C
0°C
-10~10°C, step: 1°C
-2°C
30~[6-0E]°C, step: 1°C
60°C
30~min(50,[6-0E])°C, step: 1°C
45°C
30~min(50,[6-0E])°C, step: 1°C
45°C
-40~5°C, step: 1°C
-20°C
10~25°C, step: 1°C
15°C
[9-01]~[9-00]°C, step: 1°C
60°C
[9-01]~min(45,[9-00])°C, step: 1°C
25°C
[9-05]~min(45,[9-06])°C, step: 1°C
25°C
[9-05]~[9-06]°C, step: 1°C
60°C
10~25°C, step: 1°C
15°C
-40~5°C, step: 1°C
-20°C
0~5
5: Ground source
1: 16
1: Type 2
4: 3PN,(1/2)
0: No
1: Active open
2: Active closed
0: LWT control
1: Ext RT control
2: RT control
0: 1 LWT zone
1: 2 LWT zones
0: Continuous
1: Sample (only possible if [C-07] = 0)
2: Request (only possible if [C-07] ≠ 0)
0: No
0: At unit
1: In room
1: Thermo ON/OFF
2: C/H request
1: Thermo ON/OFF
2: C/H request
0: No
1: Bivalent
2: 3: 0: No (#)
0: Normally open
1: Normally closed
0: No
1: Pwr consmp ctrl
0 (No): NOT installed
1: Installed (0.1 pulse/kWh)
2: Installed (1 pulse/kWh)
3: Installed (10 pulse/kWh)
4: Installed (100 pulse/kWh)
5: Installed (1000 pulse/kWh)
0 (No): NOT installed
1: Installed (0.1 pulse/kWh)
2: Installed (1 pulse/kWh)
3: Installed (10 pulse/kWh)
4: Installed (100 pulse/kWh)
5: Installed (1000 pulse/kWh)
0: No
1: Secondary rtrn
2: Disinf. Shunt
0: No
1: Outdoor sensor (##)
2: Room sensor
0: No (#)
0~10 kW, step: 0,2 kW
3 kW
0~10 kW, step: 0,2 kW
3 kW
(#) Setting is not applicable for this unit. Do not change the default value.
(##) Setting is not applicable for this unit.
*GSQH10S18AA9W / ThermaliaC12*
3/7
Field settings table
Breadcrumb
Field code
Setting name
Range, step
Default value
LWT setpoint mode
A.3.1.1.1
R/W
A.3.1.1.2.1
[9-01]
Temperature range
Minimum temp (heating)
R/W
A.3.1.1.2.2
[9-00]
Temperature range
Maximum temp (heating)
R/W
A.3.1.1.5
[8-05]
Modulated LWT
A.3.1.1.6.1
[F-0B]
Shut-off valve
A.3.1.1.7
[9-0B]
Emitter type
R/W
└────────────────── Additional
LWT setpoint mode
R/W
A.3.1.2.1
R/W
Thermo On/OFF
R/W
A.3.1.2.2.1
[9-05]
Temperature range
Minimum temp (heating)
R/W
A.3.1.2.2.2
[9-06]
Temperature range
Maximum temp (heating)
R/W
[9-09]
└────────────────── Delta T source
Heating
A.3.1.3.1
Minimum temp (heating)
R/W
Maximum temp (heating)
R/W
12~18°C, step: A.3.2.4
12°C
18~30°C, step: A.3.2.4
30°C
-5~5°C, step: 0,5°C
0°C
-5~5°C, step: 0,5°C
0°C
0: 1°C
1: 0,5°C
[3-07]
A.3.2.1.2
[3-06]
Room temp. range
A.3.2.2
[2-0A]
Room temp. offset
R/W
A.3.2.3
[2-09]
Ext. room sensor offset
R/W
Room temp. step
R/W
A.3.3.1
A.4.1
[4-02]
0: Fixed
1: Weather dep.
2: Fixed / scheduled
3: WD / scheduled
15~37°C, step: 1°C
24°C
37~65°C, step: 1°C
65°C
3~10°C, step: 1°C
8°C
A.3.2.1.1
A.3.2.4
0: Fixed
1: Weather dep.
2: Fixed / scheduled
3: WD / scheduled
15~37°C, step: 1°C
24°C
37~65°C, step: 1°C
65°C
0: No
1: Yes
0: No
1: Yes
0: Quick
1: Slow
R/W
└─ Room thermostat
Room temp. range
└─ Operation range
Space heating OFF temp
└─ Domestic hot water (DHW)
└─ Type
[6-0D]
└─ Disinfection
Disinfection
R/W
14~35°C, step: 1°C
35°C
R/W
0: Reheat only
1: Reheat + sched.
2: Scheduled only
R/W
0: No
1: Yes
0: Each day
1: Monday
2: Tuesday
3: Wednesday
4: Thursday
5: Friday
6: Saturday
7: Sunday
0~23 hour, step: 1 hour
23
60°C
40~60 min, step: 5 min
40 min
A.4.4.1
[2-01]
A.4.4.2
[2-00]
Operation day
R/W
A.4.4.3
[2-02]
Start time
R/W
A.4.4.4
A.4.4.5
[2-03]
[2-04]
Temperature target
Duration
R/W
R/W
A.4.5
[6-0E]
Installer setting at variance with
default value
Date
Value
└─ Maximum setpoint
R/W
40~60°C, step: 1°C
60°C
R/W
0: Fixed
1: Weather dep.
R/W
35~[6-0E]°C, step: 1°C
45°C
45~[6-0E]°C, step: 1°C
60°C
10~25°C, step: 1°C
15°C
-40~5°C, step: 1°C
-20°C
└─ SP mode
A.4.6
A.4.7
[0-0B]
└─ Weather dependent curve
Weather-dependent curve
A.4.7
[0-0C]
Weather-dependent curve
A.4.7
[0-0D]
A.4.7
[0-0E]
A.5.1.1
Weather-dependent curve
DHW setpoint for high ambient temp. for DHW
WD curve.
DHW setpoint for low ambient temp. for DHW
WD curve.
High ambient temp. for DHW WD curve.
R/W
Weather-dependent curve
Low ambient temp. for DHW WD curve.
R/W
└─ Heat sources
└─ Backup heater
[4-00]
Operation mode
R/W
R/W
Emergency
R/W
A.5.1.3
[4-07]
Enable BUH step 2
R/W
A.5.1.4
[5-01]
Equilibrium temp.
R/W
A.5.1.2
A.6.1
└─ System operation
└─ Auto restart
[3-00]
R/W
0: No
1: Yes
R/O
R/W
0: None
0: Forced off
1: As normal
R/W
0: No limitation
1: Continuous
2: Digital inputs
0: Current
1: Power
0~50 A, step: 1 A
50 A
0~20 kW, step: 0,5 kW
20 kW
A.6.2.1
A.6.2.2
[D-00]
[D-05]
└─ Preferential kWh rate
Allowed heaters
Forced pump OFF
A.6.3.1
[4-08]
└─ Pwr consumpt. Control
Mode
A.6.3.2
[4-09]
Type
R/W
A.6.3.3
[5-05]
Amp. value
R/W
A.6.3.4
[5-09]
kW value
R/W
(#) Setting is not applicable for this unit. Do not change the default value.
(##) Setting is not applicable for this unit.
*GSQH10S18AA9W / ThermaliaC12*
0: Disabled
1: Enabled
2: Only DHW
0: Manual
1: Automatic
0: No
1: Yes
-15~35°C, step: 1°C
0°C
4P359382-1D - 2015.02
4/7
Field settings table
Breadcrumb
Field code
Setting name
A.6.3.5.1
[5-05]
Amp. limits for DI
Limit DI1
R/W
A.6.3.5.2
[5-06]
Amp. limits for DI
Limit DI2
R/W
A.6.3.5.3
[5-07]
Amp. limits for DI
Limit DI3
R/W
A.6.3.5.4
[5-08]
Amp. limits for DI
Limit DI4
R/W
A.6.3.6.1
[5-09]
kW limits for DI
Limit DI1
R/W
A.6.3.6.2
[5-0A]
kW limits for DI
Limit DI2
R/W
A.6.3.6.3
[5-0B]
kW limits for DI
Limit DI3
R/W
A.6.3.6.4
[5-0C]
kW limits for DI
Limit DI4
R/W
A.6.3.7
[4-01]
Priority
A.6.4
[1-0A]
A.6.5
[2-0B]
A.6.9
[A-04]
Range, step
Default value
R/O
Installer setting at variance with
default value
Date
Value
0~50 A, step: 1 A
50 A
0~50 A, step: 1 A
50 A
0~50 A, step: 1 A
50 A
0~50 A, step: 1 A
50 A
0~20 kW, step: 0,5 kW
20 kW
0~20 kW, step: 0,5 kW
20 kW
0~20 kW, step: 0,5 kW
20 kW
0~20 kW, step: 0,5 kW
20 kW
0: None
2: BUH
└─ Averaging time
R/W
0: No averaging
1: 12 hours
2: 24 hours
3: 48 hours
4: 72 hours
R/W
-5~5°C, step: 0,5°C
0°C
R/W
0: 0°C
1: -2°C
2: -4°C
3: -6°C
4: -8°C
5: -10°C
6: -12°C
7: -14°C
R/W
[9-05]~min(45,[9-06])°C, step: 1°C
25°C
[9-05]~[9-06]°C, step: 1°C
60°C
10~25°C, step: 1°C
15°C
-40~5°C, step: 1°C
-20°C
8
12
35
20
35~[6-0E]°C, step: 1°C
45°C
45~[6-0E]°C, step: 1°C
60°C
10~25°C, step: 1°C
15°C
-40~5°C, step: 1°C
-20°C
-40~5°C, step: 1°C
-20°C
10~25°C, step: 1°C
15°C
[9-01]~[9-00], step: 1°C
60°C
[9-01]~min(45,[9-00]), step: 1°C
25°C
1
1
20
35
22
18
0: No averaging
1: 12 hours
2: 24 hours
3: 48 hours
4: 72 hours
5
5
5
5
0: Each day
1: Monday
2: Tuesday
3: Wednesday
4: Thursday
5: Friday
6: Saturday
7: Sunday
0: No
1: Yes
0~23 hour, step: 1 hour
23
60°C
40~60 min, step: 5 min
40 min
4~16°C, step: 1°C
12°C
0: Disabled
1: Enabled
-5~5°C, step: 0,5°C
0°C
-5~5°C, step: 0,5°C
0°C
-5~5°C, step: 0,5°C
0°C
└─ Ext amb. sensor offset
└─ Brine freezeup temperature
A.8
└─ Overview settings
Leaving water value for high ambient temp. for LWT add zone heating WD curve.
[0-00]
A.8
[0-01]
Leaving water value for low ambient temp. for LWT add zone heating WD curve.
R/W
A.8
[0-02]
High ambient temp. for LWT add zone heating WD curve.
R/W
A.8
[0-03]
Low ambient temp. for LWT add zone heating WD curve.
R/W
A.8
A.8
A.8
A.8
A.8
[0-04]
[0-05]
[0-06]
[0-07]
[0-0B]
----Leaving water value for high ambient temp. for DHW WD curve.
R/W
A.8
[0-0C]
Leaving water value for low ambient temp. for DHW WD curve.
R/W
A.8
[0-0D]
High ambient temp. for DHW WD curve.
R/W
A.8
[0-0E]
Low ambient temp. for DHW WD curve.
R/W
A.8
[1-00]
Low ambient temp. for LWT main zone heating WD curve.
R/W
A.8
[1-01]
High ambient temp. for LWT main zone heating WD curve.
R/W
A.8
[1-02]
Leaving water value for low ambient temp. for LWT main zone heating WD curve.
R/W
A.8
[1-03]
Leaving water value for high ambient temp. for LWT main zone heating WD curve.
R/W
A.8
A.8
A.8
A.8
A.8
A.8
A.8
[1-04]
[1-05]
[1-06]
[1-07]
[1-08]
[1-09]
[1-0A]
------What is the averaging time for the outdoor temp?
R/W
A.8
A.8
A.8
A.8
A.8
[1-0B]
[1-0C]
[1-0D]
[1-0E]
[2-00]
----When should the disinfection function be executed?
R/W
A.8
[2-01]
Should the disinfection function be executed?
R/W
A.8
[2-02]
When should the disinfection function start?
R/W
A.8
A.8
[2-03]
[2-04]
What is the disinfection target temperature?
How long must the tank temperature be maintained ?
R/W
R/W
A.8
[2-05]
Room antifrost temperature
R/W
A.8
[2-06]
Room frost protection
R/W
A.8
[2-09]
Adjust the offset on the measured room temperature
R/W
A.8
[2-0A]
Adjust the offset on the measured room temperature
R/W
A.8
[2-0B]
What is the required offset on the measured outdoor temp.?
R/W
4P359382-1D - 2015.02
(#) Setting is not applicable for this unit. Do not change the default value.
(##) Setting is not applicable for this unit.
*GSQH10S18AA9W / ThermaliaC12*
5/7
Field settings table
Breadcrumb
Field code
Setting name
A.8
[3-00]
Is auto restart of the unit allowed?
R/W
A.8
A.8
A.8
A.8
A.8
A.8
[3-01]
[3-02]
[3-03]
[3-04]
[3-05]
[3-06]
-----What is the maximum desired room temperature in heating?
R/W
A.8
[3-07]
What is the mimimum desired room temperature in heating?
R/W
A.8
A.8
A.8
[3-08]
[3-09]
[4-00]
--What is the BUH operation mode?
R/W
A.8
A.8
[4-01]
[4-02]
-Below which outdoor temperature is heating allowed?
R/W
A.8
A.8
A.8
A.8
A.8
[4-03]
[4-04]
[4-05]
[4-06]
[4-07]
----- (Do not change this value)
Enable the second step of the backup heater?
R/W
A.8
[4-08]
Which power limitation mode is required on the system?
R/W
A.8
[4-09]
Which power limitation type is required?
R/W
A.8
A.8
A.8
A.8
[4-0A]
[4-0B]
[4-0D]
[5-00]
A.8
[5-01]
---Is backup heater or boiler operation allowed above equilibrium
temperature during space heating operation?
What is the equilibrium temperature for the building?
A.8
A.8
A.8
A.8
[5-02]
[5-03]
[5-04]
[5-05]
---What is the requested limit for DI1?
R/W
A.8
[5-06]
What is the requested limit for DI2?
R/W
A.8
[5-07]
What is the requested limit for DI3?
R/W
A.8
[5-08]
What is the requested limit for DI4?
R/W
A.8
[5-09]
What is the requested limit for DI1?
R/W
A.8
[5-0A]
What is the requested limit for DI2?
R/W
A.8
[5-0B]
What is the requested limit for DI3?
R/W
A.8
[5-0C]
What is the requested limit for DI4?
R/W
A.8
A.8
A.8
[5-0D]
[5-0E]
[6-00]
What type of backup heater installation is used?
-The temperature difference determining the heat pump ON temperature.
R/O
A.8
[6-01]
The temperature difference determining the heat pump OFF temperature.
R/W
A.8
A.8
[6-02]
[6-03]
-What is the capacity of the backup heater step 1?
R/W
A.8
[6-04]
What is the capacity of the backup heater step 2?
R/W
A.8
A.8
A.8
A.8
[6-05]
[6-06]
[6-07]
[6-08]
---What is the hysteresis to be used in reheat mode?
R/W
A.8
A.8
[6-09]
[6-0A]
-What is the desired comfort storage temperature?
R/W
A.8
[6-0B]
What is the desired eco storage temperature?
R/W
A.8
[6-0C]
What is the desired reheat temperature?
R/W
A.8
[6-0D]
What is the desired DHW production type?
R/W
A.8
[6-0E]
What is the maximum temperature setpoint?
R/W
A.8
A.8
A.8
[7-00]
[7-01]
[7-02]
--How many leaving water temperature zones are there?
R/W
A.8
[7-03]
PE factor
R/W
A.8
A.8
A.8
A.8
[7-04]
[7-05]
[8-00]
[8-01]
---Maximum running time for domestic hot water operation.
R/W
A.8
[8-02]
Anti-recycling time.
R/W
A.8
A.8
[8-03]
[8-04]
-Additional running time for the maximum running time.
R/W
A.8
[8-05]
Allow modulation of the LWT to control the room temp?
R/W
A.8
[8-06]
Leaving water temperature maximum modulation.
R/W
A.8
[8-07]
--
(#) Setting is not applicable for this unit. Do not change the default value.
(##) Setting is not applicable for this unit.
*GSQH10S18AA9W / ThermaliaC12*
Range, step
Default value
R/W
R/W
R/W
Installer setting at variance with
default value
Date
Value
0: No
1: Yes
0
1
4
2
1
18~30°C, step: A.3.2.4
30°C
12~18°C, step: A.3.2.4
12°C
35
15
0: Disabled
1: Enabled
2: Only DHW
0
14~35°C, step: 1°C
35°C
3
2
0
0/1
0: No
1: Yes
0: No limitation
1: Continuous
2: Digital inputs
0: Current
1: Power
0
1
3
0: Allowed
1: Not allowed
-15~35°C, step: 1°C
0°C
0
0
10
0~50 A, step: 1 A
50 A
0~50 A, step: 1 A
50 A
0~50 A, step: 1 A
50 A
0~50 A, step: 1 A
50 A
0~20 kW, step: 0,5 kW
20 kW
0~20 kW, step: 0,5 kW
20 kW
0~20 kW, step: 0,5 kW
20 kW
0~20 kW, step: 0,5 kW
20 kW
4: 3PN,(1/2)
1
2~20°C, step: 1°C
2°C
0~10°C, step: 1°C
2°C
0
0~10 kW, step: 0,2 kW
3 kW
0~10 kW, step: 0,2kW
3 kW
0
0
0
2~20°C, step: 1°C
10°C
0
30~[6-0E]°C, step: 1°C
60°C
30~min(50, [6-0E])°C, step: 1°C
45°C
30~min(50, [6-0E])°C, step: 1°C
45°C
0: Reheat only
1: Reheat + sched.
2: Scheduled only
40~60°C, step: 1°C
60°C
0
2
0: 1 LWT zone
1: 2 LWT zones
0~6, step: 0,1
2,5
0
0
1
5~95 min, step: 5 min
30 min
0~10 hour, step: 0,5 hour
0,5 hour
50
0~95 min, step: 5 min
95 min
0: No
1: Yes
0~10°C, step: 1°C
3°C
18
4P359382-1D - 2015.02
6/7
Installer setting at variance with
default value
Date
Value
Field settings table
Breadcrumb
Field code
Setting name
A.8
A.8
[8-08]
[8-09]
-What is the desired comfort main LWT in heating?
R/W
A.8
[8-0A]
What is the desired eco main LWT in heating?
R/W
A.8
A.8
A.8
A.8
[8-0B]
[8-0C]
[8-0D]
[9-00]
---What is the maximum desired LWT for main zone in heating?
R/W
A.8
[9-01]
What is the mimimum desired LWT for main zone in heating?
R/W
A.8
A.8
A.8
[9-02]
[9-03]
[9-04]
--Leaving water temperature overshoot temperature.
R/W
A.8
[9-05]
What is the mimimum desired LWT for add. zone in heating?
R/W
A.8
[9-06]
What is the maximum desired LWT for add. zone in heating?
R/W
A.8
A.8
A.8
[9-07]
[9-08]
[9-09]
--What is the desired delta T in heating?
R/W
A.8
A.8
[9-0A]
[9-0B]
-What emitter type is connected to the main LWT zone?
R/W
A.8
[9-0C]
Room temperature hysteresis.
R/W
A.8
[9-0D]
Pump speed limitation
R/W
A.8
[9-0E]
--
A.8
A.8
A.8
A.8
[A-00]
[A-01]
[A-02]
[A-03]
---Maximum heating frequency
R/W
A.8
[A-04]
What is the brine anti freeze up temperature?
R/W
A.8
A.8
A.8
A.8
A.8
A.8
A.8
A.8
[B-00]
[B-01]
[B-02]
[B-03]
[B-04]
[C-00]
[C-01]
[C-02]
-------Is an external backup heat source connected?
R/W
A.8
[C-03]
Bivalent activation temperature.
R/W
A.8
[C-04]
Bivalent hysteresis temperature.
R/W
A.8
[C-05]
What is the thermo request contact type for the main zone?
R/W
A.8
[C-06]
What is the thermo request contact type for the add. zone?
R/W
A.8
[C-07]
What is the unit control method in space operation?
R/W
A.8
[C-08]
Which type of external sensor is installed?
R/W
A.8
[C-09]
What is the required alarm output contact type?
R/W
A.8
A.8
A.8
A.8
A.8
A.8
[C-0A]
[C-0C]
[C-0D]
[C-0E]
[D-00]
[D-01]
----Which heaters are permitted if prefer. kWh rate PS is cut?
Contact type of preferential kWh rate PS installation?
R/O
R/W
A.8
[D-02]
Which type of DHW pump is installed?
R/W
A.8
[D-03]
Leaving water temperature compensation around 0°C.
R/W
Range, step
Default value
A.8
[D-04]
Is a demand PCB connected?
R/W
A.8
[D-05]
Is the pump allowed to run if prefer. kWh rate PS is cut?
R/W
A.8
A.8
[D-07]
[D-08]
Is a solar kit connected?
Is an external kWh meter used for power measurement?
R/O
R/W
4P359382-1D - 2015.02
20
[9-01]~[9-00], step: 1°C
55°C
[9-01]~[9-00], step: 1°C
45°C
13
10
16
37~65°C, step: 1°C
65°C
15~37°C, step: 1°C
24°C
22
5
1~4°C, step: 1°C
1°C
15~37°C, step: 1°C
24°C
37~65°C, step: 1°C
65°C
5
22
3~10°C, step: 1°C
8°C
5
0: Quick
1: Slow
1~6°C, step: 0,5°C
1 °C
0~8,step:1
6
0~8,step:1
6
1
0
0
0: 148Hz
1: 193Hz
0: 0°C
1: -2°C
2: -4°C
3: -6°C
4: -8°C
5: -10°C
6: -12°C
7: -14°C
0
0
0
0
0
1
0
0: No
1: Bivalent
2: 3: -25~25°C, step: 1°C
0°C
2~10°C, step: 1°C
3°C
1: Thermo ON/OFF
2: C/H request
0: 1: Thermo ON/OFF
2: C/H request
0: LWT control
1: Ext RT control
2: RT control
0: No
1: Outdoor sensor (##)
2: Room sensor
0: Normally open
1: Normally closed
0
0
0
0
0: None
0: No
1: Active open
2: Active closed
0: No
1: Secondary rtrn
2: Disinf. Shunt
0: Disabled
1: Enabled, shift 2°C (from -2 to
2: Enabled, shift 4°C (from -2 to
3: Enabled, shift 2°C (from -4 to
4: Enabled, shift 4°C (from -4 to
0: No
1: Pwr consmp ctrl
0: Forced off
1: As normal
0: No (#)
0 (No): NOT installed
1: Installed (0.1 pulse/kWh)
2: Installed (1 pulse/kWh)
3: Installed (10 pulse/kWh)
4: Installed (100 pulse/kWh)
5: Installed (1000 pulse/kWh)
2°C)
2°C)
4°C)
4°C)
(#) Setting is not applicable for this unit. Do not change the default value.
(##) Setting is not applicable for this unit.
*GSQH10S18AA9W / ThermaliaC12*
7/7
Field settings table
Breadcrumb
Field code
Setting name
A.8
[D-09]
Is an external kWh meter used for power measurement?
R/W
A.8
A.8
A.8
A.8
A.8
A.8
[D-0A]
[D-0B]
[D-0C]
[D-0D]
[D-0E]
[E-00]
-----Which type of unit is installed?
R/O
A.8
A.8
A.8
A.8
A.8
A.8
A.8
A.8
A.8
A.8
A.8
A.8
A.8
[E-01]
[E-02]
[E-03]
[E-04]
[E-05]
[E-06]
[E-07]
[E-08]
[E-09]
[E-0A]
[E-0B]
[E-0C]
[F-00]
Which type of compressor is installed?
What is the indoor unit software type?
-Is the power saving function available on the outdoor unit?
------Is a bi-zone kit installed ?
-Pump operation allowed outside range.
A.8
A.8
A.8
A.8
A.8
A.8
A.8
[F-01]
[F-02]
[F-03]
[F-04]
[F-05]
[F-06]
[F-09]
------Pump operation during flow abnormality.
R/W
A.8
A.8
[F-0A]
[F-0B]
-Close shut-off valve during thermo OFF?
R/W
A.8
A.8
[F-0C]
[F-0D]
-What is the pump operation mode?
R/W
(#) Setting is not applicable for this unit. Do not change the default value.
(##) Setting is not applicable for this unit.
*GSQH10S18AA9W / ThermaliaC12*
Range, step
Default value
R/O
R/O
R/O
R/O
R/W
Installer setting at variance with
default value
Date
Value
0 (No): NOT installed
1: Installed (0.1 pulse/kWh)
2: Installed (1 pulse/kWh)
3: Installed (10 pulse/kWh)
4: Installed (100 pulse/kWh)
5: Installed (1000 pulse/kWh)
0
2
0
0
0
0~5
5: Ground source
1: 16
1: Type 2
2
0: No
1
1
1
0
0
0
0 (#)
0
0: Disabled
1: Enabled
20
3
5
0
0
0
0: Disabled
1: Enabled
0
0: No
1: Yes
1
0: Continuous
1: Sample (only possible if [C-07] = 0)
2: Request (only possible if [C-07] ≠ 0)
4P359382-1D - 2015.02
d ROTEX Heating Systems GmbH
Langwiesenstraße 10 · D-74363 Güglingen
Fon +49(7135)103-0 · Fax +49(7135)103-200
e - m a i l i n f o @ r o t e x . d e w w w. r o t e x . d e
a ROTEX products distributed
DAIKIN AIRCONDITIONING UK Ltd.
i In Italia i prodotti ROTEX
DAIKIN AIRCONDITIONING ITALY S.p.A.
f ROTEX Représenté
ROTEX Heating Systems SARL
sono commercializzati tramite:
en France par:
ROTEX
Vertegenwoordigd in België door:
Représenté en Belgique par:
e En España los productos
ROTEX se comercializan por:
The Heights, Brooklands, Weybridge, Surrey KT 13 ONY
Tel. +44 845 645 641 9000 · Fax +44 845 641 9009
www.daikin.co.uk
Sede operativa
Via Milano, 6 - 20097 San Donato Milanese MI-Italy
Tel. +39 02 51619.1 · Fax +39 02 51619222
e-mail info@rotexitalia.it · www.rotexitalia.it
Numero verde ROTEX 800-886699
1, rue des Artisans · F-68280 Sundhoffen
Tel. +33 (0)3 89 21 74 70 · Fax +33 (0)3 89 21 74 74
e-mail info@rotex.fr · www.rotex.fr
DAIKIN AIRCONDITIONING BELGIUM NV
Avenue Franklin 1B · B-1300 Wavre
Tel. +32 (0)10 23 72 23 · Fax +32 (0)10 24 49 10
e-mail
info@daikin.be
·
www.daikin.be
DAIKIN AIRCONDITIONING SPAIN
Calle Labastida 2 · E-28034 Madrid
Tel. +34 91 334 5600 · Fax +34 91 334 5630
e-mail marketing@daikin.es · www.daikin.es
Errors and technical changes reserved 03/2014
in the United Kingdom by:
4P374245-1A 2015.10
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