Installer and user
reference guide
Heat reclaim ventilation unit
Nam
e Plat
e
VAM350J7VEB
VAM500J7VEB
VAM650J7VEB
VAM800J7VEB
VAM1000J7VEB
VAM1500J7VEB
VAM2000J7VEB
Installer and user reference guide
Heat reclaim ventilation unit
English
Table of contents
8 Configuration
Table of contents
1 General safety precautions
1.1
1.2
1.3
About the documentation ..........................................................
1.1.1
Meaning of warnings and symbols..............................
For the user ...............................................................................
For the installer..........................................................................
1.3.1
General .......................................................................
1.3.2
Installation site ............................................................
1.3.3
Refrigerant ..................................................................
1.3.4
Brine............................................................................
1.3.5
Water ..........................................................................
1.3.6
Electrical .....................................................................
8.1
3
3
3
3
3
3
4
4
5
5
5
8.2
8.3
8.4
8.5
2 About the documentation
2.1
About this document..................................................................
6
6
For the installer
6
3 About the box
6
3.1
3.2
Overview: About the box ...........................................................
Heat reclaim ventilation unit ......................................................
3.2.1
To unpack the heat reclaim ventilation unit.................
3.2.2
To remove the accessories.........................................
3.2.3
To handle the heat reclaim ventilation unit .................
4 About the units and options
4.1
4.2
4.3
4.4
Overview: About the units and options......................................
Identification ..............................................................................
4.2.1
Identification label: Heat reclaim ventilation unit .........
About the heat reclaim ventilation unit ......................................
Combining units and options .....................................................
4.4.1
Possible options for the heat reclaim ventilation unit ..
5 Preparation
5.1
5.2
5.3
5.4
5.5
Overview: Preparation...............................................................
Preparing the installation site ....................................................
5.2.1
Installation site requirements for the heat reclaim
ventilation unit .............................................................
Preparing the unit ......................................................................
5.3.1
To install the optional adapter printed circuit board ....
5.3.2
To install the duct joints ..............................................
Preparing the electrical wiring ...................................................
5.4.1
Wiring connection .......................................................
5.4.2
Component electrical specifications............................
5.4.3
Specifications for field supplied fuses and wires.........
Preparing the installation of the ducts .......................................
6 Installation
6.1
6.2
6.3
6.4
6.5
Service space: Heat reclaim ventilation unit..............................
Unit orientation ..........................................................................
To install the anchor bolts .........................................................
Duct connections.......................................................................
Electrical wiring .........................................................................
6.5.1
Precautions when connecting electrical wiring ...........
6.5.2
Opening the switch box...............................................
6.5.3
Electrical connections for possible additional field
supplied damper .........................................................
6.5.4
Power supply connection, control wire terminals and
switches on the circuit board.......................................
6.5.5
Guidelines when connecting the electrical wiring .......
7 System configuration
7.1
7.2
7.3
7.4
About control systems ...............................................................
Independent system ..................................................................
Interlocked system ....................................................................
Centralised control system ........................................................
Installer and user reference guide
2
6
7
7
8
8
9
9
9
9
9
9
9
10
10
10
10
10
10
11
11
11
12
12
13
13
13
13
14
14
15
15
16
19
19
19
20
20
21
21
22
22
Operating procedure ..................................................................
8.1.1
To change the settings with BRC1E53 ........................
8.1.2
To change the settings with BRC301B61 ....................
List of settings ............................................................................
Settings for all configurations .....................................................
8.3.1
About setting 19(29)-0-04 and 19(29)-0-05 .................
8.3.2
Independent system.....................................................
8.3.3
1-group linked-control system......................................
8.3.4
Linked control with more than 2 groups .......................
8.3.5
Direct duct connection .................................................
8.3.6
Centralised control system...........................................
About the user interface .............................................................
8.4.1
User interface for VRV-system air conditioner.............
8.4.2
User interface for heat reclaim ventilation units ...........
Detailed explanation of settings .................................................
8.5.1
To monitor the unit's operation.....................................
8.5.2
About the fresh-up operation .......................................
8.5.3
About the external damper operation...........................
8.5.4
About the carbon dioxide sensor .................................
8.5.5
About the nighttime free cooling operation ..................
8.5.6
About the pre-cool and pre-heat function.....................
8.5.7
About preventing a feeling of draft ...............................
8.5.8
About 24-hour ventilation .............................................
8.5.9
About the ultra-low setting ...........................................
8.5.10 About the electrical heater operation ...........................
8.5.11 About external linkage input.........................................
8.5.12 About filter contamination check ..................................
9 Commissioning
9.1
9.2
9.3
9.4
22
22
23
24
28
28
29
29
29
30
30
32
32
33
34
34
34
35
35
37
37
37
37
37
38
38
38
38
Overview: Commissioning..........................................................
Precautions when commissioning ..............................................
Checklist before commissioning.................................................
Checklist during commissioning .................................................
9.4.1
About the test run.........................................................
38
38
38
38
38
10 Hand-over to the user
39
11 Maintenance and service
39
11.1
11.2
11.3
Overview: Maintenance and service ..........................................
Maintenance safety precautions.................................................
11.2.1 To prevent electrical hazards.......................................
Checklist for maintenance of the heat reclaim ventilation unit ...
12 Troubleshooting
12.1
12.2
12.3
39
39
39
39
39
Overview: Troubleshooting.........................................................
Precautions when troubleshooting .............................................
Solving problems based on error codes.....................................
12.3.1 Error codes: Overview .................................................
39
40
40
40
13 Disposal
40
14 Technical data
40
14.1
Wiring diagram: Heat reclaim ventilation unit ............................. 40
For the user
41
15 User interface
41
16 Before operation
41
17 Energy saving and optimum operation
41
18 Maintenance and service
42
18.1
18.2
Maintenance of the air filter ........................................................ 42
Maintenance of the heat exchange element .............................. 43
19 Troubleshooting
43
20 Relocation
43
21 Disposal
43
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
1 General safety precautions
22 Glossary
1
43
a safe way and understand the hazards involved. Children shall
NOT play with the appliance. Cleaning and user maintenance
shall NOT be made by children without supervision.
General safety precautions
WARNING
To prevent electric shocks or fire:
1.1
▪ Do NOT rinse the unit.
About the documentation
▪ Do NOT operate the unit with wet hands.
▪ The original documentation is written in English. All other
languages are translations.
▪ Do NOT place any objects containing water on the unit.
▪ The precautions described in this document cover very important
topics, follow them carefully.
NOTICE
▪ Do NOT place any objects or equipment on top of the
unit.
▪ The installation of the system, and all activities described in the
installation manual and the installer reference guide MUST be
performed by an authorised installer.
▪ Do NOT sit, climb or stand on the unit.
▪ Units are marked with the following symbol:
1.1.1
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.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
This means that electrical and electronic products may NOT be
mixed with unsorted household waste. Do NOT try to dismantle
the system yourself: the dismantling of the system, treatment of
the refrigerant, of oil and of other parts must be done by an
authorized installer and must comply with applicable legislation.
Units must be treated at a specialized treatment facility for reuse,
recycling and recovery. By ensuring this product is disposed of
correctly, you will help to prevent potential negative consequences
for the environment and human health. For more information,
contact your installer or local authority.
▪ Batteries are marked with the following symbol:
WARNING
Indicates a situation that could result in death or serious
injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate
injury.
NOTICE
Indicates a situation that could result in equipment or
property damage.
INFORMATION
Indicates useful tips or additional information.
Symbol
Explanation
Before installation, read the installation and
operation manual, and the wiring instruction sheet.
Before performing maintenance and service tasks,
read the service manual.
For more information, see the installer and user
reference guide.
This means that the batteries may NOT be mixed with unsorted
household waste. If a chemical symbol is printed beneath the
symbol, this chemical symbol means that the battery contains a
heavy metal above a certain concentration.
Possible chemical symbols are: Pb: lead (>0.004%).
Waste batteries must be treated at a specialized treatment facility
for reuse. By ensuring waste batteries are disposed of correctly,
you will help to prevent potential negative consequences for the
environment and human health.
1.3
For the installer
1.3.1
General
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 Daikin.
WARNING
1.2
For the user
▪ If you are NOT sure how to operate the unit, contact your installer.
▪ This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Make sure installation, testing and applied materials
comply with applicable legislation (on top of the
instructions described in the Daikin documentation).
CAUTION
Wear adequate personal protective equipment (protective
gloves, safety glasses,…) when installing, maintaining or
servicing the system.
Installer and user reference guide
3
1 General safety precautions
WARNING
1.3.3
Tear apart and throw away plastic packaging bags so that
nobody, especially children, can play with them. Possible
risk: suffocation.
Refrigerant
If applicable. See the installation manual or installer reference guide
of your application for more information.
NOTICE
DANGER: RISK OF BURNING
▪ 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 refrigerant piping installation complies with
applicable legislation. In Europe, EN378 is the applicable
standard.
NOTICE
Make sure the field piping and connections are NOT
subjected to stress.
WARNING
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.
During tests, NEVER pressurize the product with a
pressure higher than the maximum allowable pressure (as
indicated on the nameplate of the unit).
WARNING
CAUTION
Do NOT touch the air inlet or aluminium fins of the unit.
NOTICE
▪ Do NOT place any objects or equipment on top of the
unit.
▪ Do NOT sit, climb or stand on the unit.
▪ 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.
NOTICE
DANGER: RISK OF EXPLOSION
Works executed on the outdoor unit are best done under
dry weather conditions to avoid water ingress.
Pump down – Refrigerant leakage. If you want to pump
down the system, and there is a leakage in the refrigerant
circuit:
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
In Europe, EN378 provides the necessary guidance for this logbook.
1.3.2
Take sufficient precautions in case of refrigerant leakage. If
refrigerant gas leaks, ventilate the area immediately.
Possible risks:
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. Do NOT block any
ventilation openings.
▪ Make sure the unit is level.
Do NOT install the unit in the following places:
▪ Do NOT use the unit's automatic pump down function,
with which you can collect all refrigerant from the
system into the outdoor unit. Possible consequence:
Self-combustion and explosion of the compressor
because of air going into the operating compressor.
▪ Use a separate recovery system so that the unit's
compressor does NOT have to operate.
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
▪ To avoid compressor breakdown, do NOT charge more
than the specified amount of refrigerant.
▪ When the refrigerant system is to be opened,
refrigerant MUST be treated according to the applicable
legislation.
▪ In potentially explosive atmospheres.
WARNING
▪ In places where there is machinery that emits electromagnetic
waves. Electromagnetic waves may disturb the control system,
and cause malfunction of the equipment.
Make sure there is no oxygen in the system. Refrigerant
may only be charged after performing the leak test and the
vacuum drying.
▪ 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.
Installer and user reference guide
4
▪ In case re-charge is required, refer to the nameplate of the unit. It
states the type of refrigerant and necessary amount.
▪ The unit is factory charged with refrigerant and depending on pipe
sizes and pipe lengths some systems require additional charging
of refrigerant.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
1 General safety precautions
▪ 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")
A siphon tube is NOT present
Charge with the cylinder upside
down.
1.3.6
Electrical
DANGER: RISK OF ELECTROCUTION
▪ Turn OFF all power supply before removing the
switch box cover, connecting electrical wiring or
touching electrical parts.
▪ 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.
▪ Do NOT touch electrical components with wet hands.
▪ Do NOT leave the unit unattended when the service
cover is removed.
WARNING
▪ Open refrigerant cylinders slowly.
▪ Charge the refrigerant in liquid form. Adding it in gas form may
prevent normal operation.
1.3.4
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, MUST be installed in the fixed wiring.
WARNING
CAUTION
▪ ONLY use copper wires.
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.
▪ Make sure the field wiring complies with the applicable
legislation.
Brine
If applicable. See the installation manual or installer reference guide
of your application for more information.
WARNING
The selection of the brine MUST be in accordance with the
applicable legislation.
WARNING
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.
▪ All field wiring MUST be performed in accordance with
the wiring diagram supplied with the product.
▪ 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.
WARNING
The use and installation of the application MUST comply
with the safety and environmental precautions specified in
the applicable legislation.
1.3.5
Water
If applicable. See the installation manual or installer reference guide
of your application for more information.
NOTICE
Make sure water quality complies with EU directive
98/83 EC.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
5
2 About the documentation
NOTICE
Target audience
Precautions when laying power wiring:
Authorised installers + end users
INFORMATION
This appliance is intended to be used by expert or trained
users in shops, in light industry and on farms, or for
commercial use by lay persons.
▪ 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 above.
▪ For wiring, use the designated power wire and connect
firmly, then secure to prevent outside pressure being
exerted on the terminal board.
▪ 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.
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.
NOTICE
Only applicable if the power supply is three‑phase, and the
compressor has an ON/OFF starting method.
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.
Documentation set
This document is part of a documentation set. The complete set
consists of:
▪ General safety precautions:
▪ Safety instructions that you MUST read before installing
▪ Format: Paper (in the accessory bag of the heat reclaim
ventilation unit)
▪ Heat reclaim ventilation unit installation and operation
manual:
▪ Installation and operation instructions
▪ Format: Paper (in the accessory bag of the heat reclaim
ventilation unit)
▪ Installer and user reference guide:
▪ Preparation of the installation, good practices, reference data,…
▪ Detailed step-by-step instructions and background information
for basic and advanced usage
▪ Format: Digital files on http://www.daikineurope.com/supportand-manuals/product-information/
Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your dealer.
The original documentation is written in English. All other languages
are translations.
Technical engineering data
▪ A subset of the latest technical data is available on the regional
Daikin website (publicly accessible).
▪ The full set of latest technical data is available on the Daikin
extranet (authentication required).
2
About the documentation
2.1
About this document
INFORMATION
Make sure that the user has the printed documentation and
ask him/her to keep it for future reference.
For the installer
3
About the box
▪ At delivery, the unit MUST be checked for damage. Any damage
MUST be reported immediately to the carrier's claims agent.
3.1
Overview: About the box
▪ Bring the packed unit as close as possible to its final installation
position to prevent damage during transport.
This chapter describes what you have to do after the box with the
heat reclaim ventilation unit is delivered on-site.
▪ When handling the unit, take into account the following:
Fragile, handle the unit with care.
It contains information about:
▪ Unpacking and handling the units
▪ Removing the accessories from the units
Keep the following in mind:
Installer and user reference guide
6
Keep the unit upright in order to avoid damage.
▪ Prepare the path along which you want to bring the unit inside in
advance.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
3 About the box
3.2
Heat reclaim ventilation unit
3.2.1
To unpack the heat reclaim ventilation
unit
VAM1500+VAM2000
1
VAM350+VAM500
2
VAM650~1000
3
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
7
3 About the box
3.2.2
e
To remove the accessories
Screws, VAM350+VAM500 16×, VAM650~1000 24×,
VAM1500+VAM2000 48×
VAM350+VAM500
3.2.3
To handle the heat reclaim ventilation unit
NOTICE
When removing the heat reclaim ventilation unit from the
packing, do NOT place the suction or discharge side of the
unit on the floor. Possible consequence: Deformation of
the suction or discharge openings and damaged expanded
polystyrene.
CAUTION
To avoid injury, do NOT touch the air inlet, the air outlet, or
the fans of the unit.
▪ With packing.
In case of VAM350+VAM500, do NOT use slings or a forklift.
In case of VAM650~2000, use a forklift.
VAM650~1000
▪ Without packing.
Carry VAM350~1000 slowly as shown:
VAM1500+VAM2000
Name Plate
Carry VAM1500+VAM2000 slowly as shown:
b
a
a
b
c
d
c
e
Wire
General safety precautions
Installation and operation manual
Duct joints, VAM350~1000 4×, VAM1500+VAM2000 8×
Installer and user reference guide
8
d
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
4 About the units and options
4
About the units and options
4.1
Overview: About the units and
options
This chapter contains information about:
▪ Identifying the unit
▪ Combining the unit with options
4.2
Operation range
Temperature
0°C DB~40°C DB
Unit location
Relative Humidity
≤80%
It is possible that, due to condensation, the paper heat exchanger
deteriorates when the unit operates in conditions with high indoor
humidity combined with low outdoor temperature. If such combined
conditions occur for an extended period of time, the necessary
precautions have to be taken to prevent condensation. Example:
install a pre-heater to heat up the outdoor air.
When the heat reclaim ventilation unit is installed upside down, the
minimum allowed outdoor air temperature is 5°C. If this CANNOT be
guaranteed, you MUST install a heater to heat up the outdoor air to
5°C.
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: Heat reclaim
ventilation unit
4.4
Combining units and options
4.4.1
Possible options for the heat reclaim
ventilation unit
Adapter printed circuit board
Options BRP4A50A and KRP2A51.
Location
At temperatures below –10°C, it is mandatory to use an electrical
heater. This is connected with option PCB BRP4A50A.
CAUTION
If an electrical heater is installed, use nonflammable duct.
For safety, be sure to keep 2 m or more between the
heater and the heat reclaim ventilation unit.
If you install any of these options on the VAM650, you have to
prepare the mounting plate (EKMP65VAM).
Nam
e Plat
e
If you install any of these options on the VAM1500 or VAM2000, you
have to prepare the mounting plate (EKMPVAM).
Model identification
If you install KRP2A51, you have to prepare the fixing box
(KRP1BA101).
Example: V A M 500 J 7 VE B [*]
Filter
Code
Explanation
When. This option might be mandatory. Check the local legislation.
It is recommended in places with poor outside air quality.
V
Ventilation
A
Air
M
Mounted type
500
Nominal air flow rate (m³/h)
Where. Install the filter behind the heat exchange element either at
the side of air supply or air exhaust. Keep the standard filter in place.
ONLY replace the standard filter when an option filter is put in front
of and behind the heat exchange element.
J
Major design category (Design category for EC
application)
How. For installation instructions, see the installation manual of the
filter kit.
7
Minor design category
VE
Power supply: 1~, 50 Hz 220~240 V
Pressure drop over the filter. See the databook for pressure drop
curves for each capacity class of unit and each class of filter.
Power supply: 1~, 60 Hz 220 V
B
European market
[*]
Minor model change indication
Model
Filter VAM350+500
class
VAM650 VAM800~2000
EKAFVJ50F6
M6
◯
—
—
EKAFVJ50F7
F7
◯
—
—
About the heat reclaim ventilation
unit
EKAFVJ50F8
F8
◯
—
—
EKAFVJ65F6
M6
—
◯
—
EKAFVJ65F7
F7
—
◯
—
The heat reclaim ventilation unit is intended for indoor installation.
EKAFVJ65F8
F8
—
◯
—
NOTICE
EKAFVJ100F6
M6
—
—
◯
ALWAYS use the air filter. If the air filter is NOT used, the
heat exchange elements can get clogged, possibly causing
poor performance and subsequent failure.
EKAFVJ100F7
F7
—
—
◯
EKAFVJ100F8
F8
—
—
◯
4.3
Plenum (EKPLEN200)
Operation range
Temperature
–10°C DB~46°C DB
Outdoor air + return
air
Relative Humidity
≤80%
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
When. The plenum is an option for VAM1500+VAM2000. This
option can be used to ease the installation of the heat reclaim
ventilation unit.
Installer and user reference guide
9
5 Preparation
Where. Replace the 2 duct joints of Ø250 mm with the plenum and a
duct joint of Ø350 mm.
CAUTION
▪ The appliance is designed to be a built-in appliance. It
must NOT be accessible to the general public.
Adequate measures have to be taken to prevent
access by other than qualified persons.
How. For installation instructions, see the installation manual of the
plenum kit.
CO2 sensor (BRYMA*)
▪ Check if the installation location can support the unit's
weight. Poor installation is hazardous. It can also cause
vibrations or unusual operating noise.
When. The CO2 sensor is optional. This option can be used to have
a ventilation rate in function of the CO2 concentration.
Where. Install the CO2 sensor in the heat reclaim ventilation unit. For
VAM1500+VAM2000, install the CO2 sensor in the upper unit of the
heat reclaim ventilation unit.
▪ Provide sufficient service space and inspection holes.
Inspection holes are needed for the air filters, the heat
exchange elements and the fans.
How. For installation instructions, see "8.5.4 About the carbon
dioxide sensor" on page 35.
▪ Do NOT install the unit so that it is in contact with a
ceiling or wall, this may cause vibration.
CAUTION
5
Preparation
5.1
Overview: Preparation
This chapter describes what you have to do and know before going
on-site.
Appliance NOT accessible to the general public, install it in
a secured area, protected from easy access.
This unit is suitable for installation in a commercial and
light industrial environment.
For VAM800~2000
It contains information about:
NOTICE
▪ Preparing the installation site
This is a class A product. In a domestic environment this
product may cause radio interference in which case the
user may be required to take adequate measures.
▪ Preparing the unit
▪ Preparing the electrical wiring
▪ Preparing the installation of the ducts
Service space
See "6.1 Service space: Heat reclaim ventilation unit" on page 13.
5.2
Preparing the 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 an installation location with sufficient space for carrying the
unit in and out of the site.
5.3
Preparing the unit
5.3.1
To install the optional adapter printed
circuit board
For models 350-500-800-1000
Do NOT install a heat reclaim ventilation unit or air suction/discharge
grille in the following places:
b
▪ Places, such as machinery plants and chemical plants, where
noxious gases or corrosive components of materials such as acid,
alkali, organic solvent and paint are present.
▪ Places, such as bathrooms, subject to moisture. Moisture can
cause electric shock, electric leakage and other failures.
f
▪ Places subject to high temperature or direct flames.
c
▪ Places subject to much carbon black. Carbon black attaches to air
filter and heat exchange elements, disabling them.
5.2.1
Installation site requirements for the heat
reclaim ventilation unit
INFORMATION
a
f
Also read the general installation site requirements. See
the "General safety precautions" chapter.
Installer and user reference guide
10
g
a
b
c
f
g
f
BRP4A50A (optional accessory)
KRP2A51 (optional accessory)
KRP1BA101 (Fixing box)
Screw
Screw (supplied with the fixing box)
1
Remove the screws from the unit.
2
Attach the optional adapter printed circuit board (KRP2A51) in
the fixing box (KRP1BA101).
3
Follow the installation instructions provided with the option kits
(BRP4A50A, KRP2A51 and KRP1BA101).
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
5 Preparation
4
Guide the circuit board wire through the dedicated holes and
attach it as instructed in "6.5.2 Opening the switch box" on
page 16.
5
Attach the options to the unit, as shown in the figure.
6
After the wires are connected, fasten the switch box cover.
e
f
g
1
Remove the screws that are in the middle of the casing fixing
plate.
2
Attach the optional mounting plate (EKMPVAM) on top of the
casing fixing plate.
3
Attach the optional adapter printed circuit board (KRP2A51) in
the fixing box (KRP1BA101).
4
Follow the installation instructions provided with the option kits
(BRP4A50A, KRP2A51 and KRP1BA101).
5
Guide the circuit board wire through the dedicated holes and
attach it as instructed in "6.5.2 Opening the switch box" on
page 16.
6
Attach the options to the optional mounting plate, as shown in
the figure.
7
After the wires are connected, fasten the switch box cover.
For model 650
b
c
f
5.3.2
a
d
f
g
a
b
c
d
f
g
EKMPVAM (Mounting plate)
Screw
Screw (supplied with the fixing box)
To install the duct joints
1
Position the duct joints over the duct holes.
2
Secure the duct joints with the provided screws (accessories).
1
2
f
BRP4A50A (optional accessory)
KRP2A51 (optional accessory)
KRP1BA101 (Fixing box)
EKMP65VAM (Mounting plate)
Screw
Screw (supplied with the fixing box)
1
Remove the screws from the unit.
2
Attach the optional mounting plate (EKMP65VAM) to the unit.
3
Attach the optional adapter printed circuit board (KRP2A51) in
the fixing box (KRP1BA101).
4
Follow the installation instructions provided with the option kits
(BRP4A50A, KRP2A51 and KRP1BA101).
5
Guide the circuit board wire through the dedicated holes and
attach it as instructed in "6.5.2 Opening the switch box" on
page 16.
Models
Attach the options to the optional mounting plate, as shown in
the figure.
VAM350
16
4× Ø200 mm
VAM500
16
4× Ø200 mm
After the wires are connected, fasten the switch box cover.
VAM650
24
4× Ø250 mm
VAM800
24
4× Ø250 mm
VAM1000
24
4× Ø250 mm
VAM1500
48
8× Ø250 mm
VAM2000
48
8× Ø250 mm
6
7
For models 1500+2000
b
f
Preparing the electrical wiring
5.4.1
Wiring connection
A main switch or other means for disconnection, having a
contact separation in all poles, MUST be incorporated in
the fixed wiring in accordance with the applicable
legislation.
f
b+c
f
a
e
a
b
c
5.4
WARNING
c
g
Number of provided Number of provided
screws
duct joints
BRP4A50A (optional accessory)
KRP2A51 (optional accessory)
KRP1BA101 (Fixing box)
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
You can use a single switch to supply power to units on the same
system. However, branch switches and branch circuit breakers
MUST be selected carefully.
Fit the power supply wiring of each unit with a switch and fuse as
shown in the drawing below.
Installer and user reference guide
11
5 Preparation
Complete system example
5.4.3
a
c
Specifications for field supplied fuses and
wires
Power supply wiring
d
16 A
Field supplied
fuses
Wire
H05VV-U3G
Size
Wire size MUST comply with the applicable
legislation.
Transmission wiring
Wiring
Shielded wire (2 wire)
Size
0.75~1.25 mm²
Precautions
b
When connecting more than one wire to the power supply wiring,
use a 2 mm² (Ø1.6 mm) gauge wire.
e
When using 2 power wires of a gauge greater than 2 mm²
(Ø1.6 mm), branch the line outside the terminal board of the unit, in
accordance with electrical equipment standards. The branch MUST
be sheathed to provide a degree of insulation equal to or greater
than the power supply wiring itself.
b
Keep the total current of crossover wiring between indoor units to
less than 12 A.
Do NOT connect wires of different gauge to the same grounding
terminal. Loose connections may diminish the protection.
e
a
b
c
d
e
For the user interface wiring, refer to the installation manual of the
user interface delivered with the user interface.
VRV outdoor unit
VRV indoor unit
Power supply
Main switch
User interface
Wiring example
Component electrical specifications
5.4.2
350
Model
500
800
650
1000
a
d
L N
1500
2000
b
d
Out
1
2
L N
Power supply
50 Hz
198~264 V
60 Hz
198~242 V
MCA (A)
1.56
2.08
2.80
4.39
4.90
8.78
9.80
MFA (A)
16
16
16
16
16
16
16
Fan motor
P (kW)
0.08× 0.08× 0.106 0.21× 0.21× 0.21× 0.21×
2
2
×2
2
2
4
4
FLA (A)
0.62× 0.83× 1.12× 1.76× 1.96× 1.76× 1.96×
2
2
2
2
2
4
4
MCA
MFA
P
FLA
VRV
LN 121 2
HRV
P2 P1
P1 P2 F1 F1 T1 T1
F1 F2 JC J1 J2 J3
L N
c
f
e
Minimum Circuit Amps
Maximum Fuse Amps
Motor Rated Load
Full Load Amps
P1
NOTICE
P2
When using residual current operated circuit breakers,
make sure to use a high speed type 300 mA rated residual
operating current.
P1 P2
HRV
VRV
f
NOTICE
The power supply MUST be protected with the required
safety devices, i.e. a main switch, a slow blow fuse on
each phase and an earth leakage protector in accordance
with the applicable legislation.
NOTICE
See the engineering data book for details.
g
a
b
c
d
e
f
g
P1
P2
Outdoor unit/BS unit
Switch box
Indoor unit
Power supply 220-240 V~50 Hz
User interface for VRV
Transmission wiring
User interface for heat reclaim ventilation unit
▪ All transmission wiring, except for the user interface wires, is
polarised and MUST match the terminal symbol.
Installer and user reference guide
12
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
6 Installation
▪ Use shielded cable for the transmission wiring. Ground the shield
of the shielded cable to at the grounding screw, with the C-cup
washer.
5.5
Preparing the installation of the
ducts
6
Installation
6.1
Service space: Heat reclaim
ventilation unit
INFORMATION
>1000
▪ Flexible ducting with sound insulation is effective to
reduce blowing noises.
▪ When you select installation materials, consider the
required volume of air flow and the acceptable level of
noise for that particular installation.
▪ When the return air infiltrates into the ceiling and the
temperature and humidity in the ceiling become too
high, insulate the metal parts of the unit.
a
>600
▪ ONLY use the service hole to access the inside of the
unit.
▪ The sound pressure level is less than 70 dBA.
150-250
CAUTION
▪ For safety reasons, the required minimum length of the
ducting is 1.5 m. If the ducting is shorter, or if no
ducting is installed, then you MUST install grilles in the
duct openings or the openings of the unit.
▪ Make sure no wind can blow in the ducting.
>50
(mm)
a
6.2
Service space
Unit orientation
The following illustration helps you to install the heat reclaim
ventilation unit in the correct position:
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
13
6 Installation
b
a
a
b
6.3
Ceiling hook
Maintenance cover
To install the anchor bolts
Prerequisite: Before you install the anchor bolt, check if foreign
objects such as vinyl and paper are still inside the fan housing. If so,
remove them.
1
Install the anchor bolt (M10 to M12).
2
Pass the metal suspension bracket through the anchor bolt.
3
Secure the anchor bolt with washer and nut.
For VAM350~1000:
a
b
c
d
For VAM1500+VAM2000:
a
Installation tips:
▪ Installing the unit upside
inspection hole, reducing
example, if 2 units are
inspection hole is required
exchange elements,…
down allows for common use of the
the required maintenance space. For
installed closely together, ONLY 1
for maintaining or replacing filters, heat
b
c
a
d
c
b
a
b
c
Control box
Maintenance cover
Inspection hole
a
b
c
d
▪ When the heat reclaim ventilation unit is installed upside down,
the minimum allowed outdoor air temperature is 5°C. If this
CANNOT be guaranteed, you MUST install a heater to heat up the
outdoor air to 5°C.
▪ Keep in mind that the ceiling hooks have to be reinstalled when
the heat reclaim ventilation unit is installed upside down. They
have to be rotated 180°, so that they are upside down (see the
illustration).
Installer and user reference guide
14
Ceiling hook
Nut
Washer
Double nuts
NOTICE
Always hang up the unit by its suspension brackets.
6.4
Duct connections
Do NOT connect the ducts as follows:
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
6 Installation
VAM1500+VAM2000
d
Extreme bend. Do NOT bend the duct over 90°.
c
a
b
c
d
e
f
e
e
f
Aluminium tape (field supply)
Insulation material (field supply)
Duct joint (accessories)
Slope over 1/50
Supply air
Return air
Multi bend
6.5
Electrical wiring
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
Reduced diameter. Do NOT reduce the duct diameter.
WARNING
▪ The minimum bend radius for flexible ducts is as follows:
(Øduct/2)×1.5
▪ All wiring MUST be performed by an authorised
electrician and MUST comply with the applicable
legislation.
▪ To prevent air leakage, wind aluminium tape around the section
where the duct joints and the ducts are connected.
▪ Make electrical connections to the fixed wiring.
▪ Install the opening of the supply air as far as possible from the
opening of the return air.
▪ All components procured on the site and all electrical
construction MUST comply with the applicable
legislation.
▪ Use ducts with a diameter that fit the unit model. See the data
book.
▪ Install the two outdoor ducts with down slope (slope ratio of 1 in
50 or more) to prevent entry of rain water. Also provide insulation
for both ducts, to prevent dew formation. (Material: 25 mm thick
glass wool)
6.5.1
Precautions when connecting electrical
wiring
DANGER: RISK OF ELECTROCUTION
▪ If the level of temperature and humidity inside the ceiling is always
high, install ventilation inside the ceiling.
WARNING
▪ Insulate the duct and the wall electrically when a metal duct has to
penetrate the metal lattice and wire lattice or the metal lining of a
wooden structure wall.
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, MUST be installed in the fixed wiring.
▪ Install the ducts in a manner that the wind CANNOT blow inside
the ducting.
WARNING
▪ ONLY use copper wires.
VAM350~1000
▪ Make sure the field wiring complies with the applicable
legislation.
▪ All field wiring MUST be performed in accordance with
the wiring diagram supplied with the product.
d
Name Plate
a
b
c
a
▪ 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.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
15
6 Installation
WARNING
a
▪ After finishing the electrical work, confirm that each
electrical component and terminal inside the electrical
components box is connected securely.
b
▪ Make sure all covers are closed before starting up the
unit.
NOTICE
If the power supply has a missing or wrong N-phase,
equipment will break down.
b
j
NOTICE
m
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.
6.5.2
l
i
Opening the switch box
CAUTION
k
Before opening the cover, be sure to turn off the power
switches of the main units and other devices connected to
the main units.
d+e
q
▪ Remove the screw that secures the cover and open the
switch box.
▪ Secure the power supply control wires with the clamp,
as shown in the figures.
q
VAM350~650
n
q
m
h
n
o
r
a
X33A
p
J3 J2 J1JC
F2F1P2P1
r
o
h
g
X14A
o
X35A
X24A
b
j
c
a
b
c
d
e
f
g
h
i
j
k
l
b
X29A
Switch box
Printed circuit board
Switch box cover
Securing screw and washer
Grounding terminal
Terminal board
Transmission wiring terminal board (P1, P2, F1, F2)
Transmission wiring (to optional user interface)
Power supply cable
Wires for connection of additional external damper
(supplied accessory)
Insulated splices-closed barrel connector (0.75 mm²) (field
supply)
Double or reinforced insulated flexible cable (0.75 mm²) to
external damper (field supply)
Tie wrap (field supply)
BRP4A50A (optional accessory)
KRP2A51 (optional accessory)
CO₂ sensor (optional accessory)
Tapping screw
Wires for fresh-up operation
f
C-
i
l
C+
k
Installer and user reference guide
16
m
n
o
p
q
r
i
l
m
d+e
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
6 Installation
VAM800+VAM1000
p r
h
m
q
a
o
X33A
J3 J2 J1 JC
g
F2 F1 P2 P1
q
q
X14A
X35A
j
b
c
b
X24A
X29A
b
a
b
c
d
e
f
g
h
i
j
k
l
n
i
f
d+e k
m
m
n
o
p
q
r
o
l
i
r
n
h
Switch box
Printed circuit board
Switch box cover
Securing screw and washer
Grounding terminal
Terminal board
Transmission wiring terminal board (P1, P2, F1, F2)
Transmission wiring (to optional user interface)
Power supply cable
Wires for connection of additional external damper
(supplied accessory)
Insulated splices-closed barrel connector (0.75 mm²) (field
supply)
Double or reinforced insulated flexible cable (0.75 mm²) to
external damper (field supply)
Tie wrap (field supply)
BRP4A50A (optional accessory)
KRP2A51 (optional accessory)
CO₂ sensor (optional accessory)
Tapping screw
Wires for fresh-up operation
l
k
a
j
l
i
m
h
r
n
f
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
d+e
Installer and user reference guide
17
6 Installation
a
VAM1500+VAM2000
a
p
b
b
b
b
f
m
o
X33A
J3 J2 J1JC
X14A
F2 F1 P2 P1
f
o
k
o
d
+
e
k
d+e
i
m
g
X35A
A1P
m
X24A
m
l
j
l
X35A
X24A
b
j
X29A
X27A
r
n
h
m
r
i
n h
q
q
c
c
q
o
i
l
r
n
h
a
b
c
d
e
Installer and user reference guide
18
Switch box
Printed circuit board
Switch box cover
Securing screw and washer
Grounding terminal
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
6 Installation
f
g
h
i
j
i
J3 J2 J1 JC
J3
J2
J1 JC
h
F2 F1 P2 P1
F2 F1 N/P2 P/P1
p
NOR. H M
NOR. H M
q
e
X26A
d
X22A
c
b
X29A
The external damper prevents the intake of outdoor air if the heat
reclaim ventilation unit is switched off.
X28A
Electrical connections for possible
additional field supplied damper
g
f
X24A
SS1
X35A X70A
SS1
X20A
6.5.3
o
j
k
X6A X12A X11A
X21A
m
n
o
p
q
r
X5A
X14A X38A X42A X41A
l
n m l
X33A
k
Terminal board
Transmission wiring terminal board (P1, P2, F1, F2)
Transmission wiring (to optional user interface)
Power supply cable
Wires for connection of additional external damper
(supplied accessory)
Insulated splices-closed barrel connector (0.75 mm²) (field
supply)
Double or reinforced insulated flexible cable (0.75 mm²) to
external damper (field supply)
Tie wrap (field supply)
BRP4A50A (optional accessory)
KRP2A51 (optional accessory)
CO₂ sensor (optional accessory)
Tapping screw
Wires for fresh-up operation
The heat reclaim ventilation's main unit PCB operates the heat
reclaim ventilation and provides a contact for the external damper.
d
X24A
PCB
c
b
L
N
a
a
b
c
d
a
Heat reclaim ventilation main unit
External damper
Earth to external damper
Power source
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
CAUTION
Follow the instructions below carefully.
Required electrical connections
Connect one end of the accessory wire to the X24A connector on
the PCB and the other end to the wire leading to the external
damper via an insulated splices-closed barrel connector (0.75 mm²).
Make sure that the wire is NOT taut. The electrical circuit requires a
current protection of 3 A and a maximum voltage of 250 V.
X24A will close the contact when the heat reclaim ventilation fan
starts operating and it will open the contact when the fan is stopped.
6.5.4
X27A
F1U 6.3A
NOTICE
Factory settings: Do NOT change the switch settings when
a user interface is connected. SS1 is a setting switch to
operate without user interface. Changing the settings when
a user interface is connected, will stop the unit from
operating normally. Keep the switch on the PCB at the
factory setting.
Power supply connection, control wire
terminals and switches on the circuit
board
To connect the power supply
1
Connect the power supply to the L and N terminals.
2
Secure the power supply with the power supply clamp, as
shown in "6.5.2 Opening the switch box" on page 16.
3
Be sure to connect the earth wire.
Power supply
Terminals
Damper
Damper (only VAM1500+VAM2000 bottom unit)
External damper (field supply)
Fan communications
KRP2A51 (option)
User interface
Centralised control
External input
Outdoor air thermistor
Indoor air thermistor
Damper (only VAM1500+VAM2000 bottom unit)
Damper
BRP4A50A (optional accessory)
CO₂ sensor
Factory setting (No operation if setting is changed)
6.5.5
Guidelines when connecting the electrical
wiring
Keep the following in mind:
▪ If stranded conductor wires are used, install a round crimp-style
terminal on the end of the wire. Place the round crimp-style
terminal on the wire up to the covered part and fasten the terminal
with the appropriate tool.
b
a
a
b
Stranded conductor wire
Round crimp-style terminal
▪ Use the following methods for installing wires:
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
19
7 System configuration
Wire type
Wire type
Installation method
cb
Single-core wire
A
AA´
A´
c
a
Installation method
cb
Stranded conductor
wire with round
crimp-style terminal
a
a
B
bc
B
a
a Terminal
b Screw
a Curled single-core wire
c Flat washer
b Screw
O Allowed
c Flat washer
X NOT allowed
7
System configuration
7.1
About control systems
Controller
Purposes and applications
Description of the system
Central user
interface
Unified ON/ Schedule timer User interface User interface Operation/stop
OFF controller
for heat
for indoor unit
reclaim
ventilation unit
Independent system control system
—
Basic method to operate the heat reclaim ventilation
unit
—
—
◯
◯
◯
—
—
—
◯
◯
◯
◯
◯
◯
◯
Available functions in case of an independent control system:
▪ Ventilation mode changeover: automatic or manual
▪ Air flow rate changeover: high/low
▪ Air flow rate mode changeover: normal mode/fresh-up mode
▪ Malfunction display
Interlocked operation control system
▪
▪
—
Interlocked operation with indoor unit by user
interface for indoor unit. Maximum 16 units.
The heat reclaim ventilation unit can also be
operated independently by the user interface for
indoor unit, even if the indoor unit is NOT in
operation. The heat reclaim ventilation unit
CANNOT be operated independently when the
duct is directly connected to the indoor unit.
Available functions in case of an interlocked operation control system:
▪ Ventilation mode changeover: automatic or manual
▪ Air flow rate changeover: high/low
▪ Air flow rate mode changeover: normal mode/fresh-up mode: initial setting required
▪ Pre-cool/pre-heat operation: initial setting required
▪ Nighttime free cooling operation: initial setting required
▪ Malfunction display
For an overview of settings, see "8.2 List of settings" on page 24.
Centralised control system
▪
▪
▪
◯
Unified ON/OFF controller: Maximum 16
groups of units.
Schedule timer: 1 schedule timer can control
the weekly schedule of 128 units.
Central user interface: Up to 64 groups of
units can be controlled individually by 1 central
user interface.
a
SETTING
Installer and user reference guide
20
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
7 System configuration
Controller
Purposes and applications
Description of the system
Central user
interface
Unified ON/ Schedule timer User interface User interface Operation/stop
OFF controller
for heat
for indoor unit
reclaim
ventilation unit
Available functions in case of a centralised control system:
▪ Ventilation mode changeover: automatic or manual
▪ Air flow rate changeover: high/low
▪ Air flow rate mode changeover: normal mode/fresh-up mode (field setting required when user interface for heat reclaim ventilation unit is NOT used)
▪ Air flow rate mode changeover: normal mode/fresh-up mode (when user interface for heat reclaim ventilation unit is installed)
▪ Pre-cool/pre-heat operation: initial setting required
▪ Nighttime free cooling operation: initial setting required
▪ Malfunction display
For an overview of settings, see "8.2 List of settings" on page 24.
a
Unified ON/OFF controller, Schedule timer, Central user interface
Heat reclaim ventilation unit
Indoor unit
User interface
User interface
7.2
Independent system
System
Standard method
▪
▪
▪
Related items in electric wiring
Up to 16 units can be controlled with the user interface (a system with 2 remote
controls can be created in the master/slave switching).
All heat reclaim ventilation unit operations can be used and indicated.
Remote control cord should be procured locally (cord length: up to 500 m).
See "8.3.2 Independent system" on
page 29
Heat reclaim ventilation unit
User interface
7.3
Interlocked system
▪
1-group
linked
operation
system
▪
▪
▪
Multi-group
linked
operation
system
a
Direct duct
connection
system
a
Related items in electric wiring
Standard method
System
Combined
operation
system with
VRV
systems
and Sky-air
series
▪
▪
▪
▪
▪
▪
▪
▪
A combined total of up to 16 air conditioners and the heat reclaim ventilation unit can
be controlled.
The ventilation mode can be operated independently when air conditioners are NOT
used.
Using the local setting of the user interface for air conditioners, various settings such
as pre-cool/pre-heat reservation on/off, ventilation flow rate, ventilation mode, etc can
be chosen.
See "8.3.3 1-group linked-control
system" on page 29
Since all VRV units are connected to a single line in view of installation, all VRV units
are subjects for operation.
If there are problems operating all VRV units, do NOT use this system.
Up to 64 groups of the units can be controlled.
The central control transmission line can be extended up to 1000 m.
A direct duct connection is NOT possible.
Set ON for collective zone interlock setting.
Adapter PCB for remote control: KRP2A51 (One adapter PCB should be installed in
either the heat reclaim ventilation unit or the indoor unit).
See "8.3.4 Linked control with more
than 2 groups" on page 29
The heat reclaim ventilation unit will operate ONLY when the air conditioner fan is on.
Other specifications are the same as those of the standard system.
See "8.3.5 Direct duct
connection" on page 30
Adapter printed circuit board for remote control
Heat reclaim ventilation unit
Indoor unit
User interface
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
21
8 Configuration
7.4
Centralised control system
Standard method
System
All/individual
control system
a
Related items in
electric wiring
▪ Unified on/off controller: DCS301B(A)51. Up to 16 groups See "8.3.6 Centralised
can be controlled (ON/OFF) by 1 controller and up to 4 control system" on
controllers can be installed in 1 system.
page 30
▪ Schedule timer: DST301B(A)51. One schedule timer can
control the weekly schedule of up to 128 units.
▪ Adapter PCB for remote control: KRP2A51 (NOT possible
to use together with another central controller). 1 adapter
PCB can control up to 64 groups collectively.
Zone control
system
Zone 1
▪ One of the controllers has to be installed connected to the
indoor unit. (However, ONLY KRP2A51 can be installed
connected to a heat reclaim ventilation unit.).
a
▪ Use of the centralised controller enables zone control via See "8.3.6 Centralised
the centralised control line (up to 64 zones).
control system" on
page 30
▪ Central user interface DCS302C(A)51, intelligent touch
controller DCS601C51, or intelligent touch manager
DCM601A51.
Zone 2
▪ Central user interface can control the independent
operation of the heat reclaim ventilation units in each
zone.
a
Controller
Heat reclaim ventilation unit
Indoor unit
User interface
User interface
8
3
Go to Field Settings with the Up/Down buttons and press the
Menu/Enter button (b).
4
Press the Left/Right buttons to highlight the number under
Mode.
5
Press the Up/Down buttons to select the required mode
number.
Configuration
The settings (format: XX(XX)-X-XX), for example 19(29)-1-02, that
are used in this chapter are composed of 3 parts, divided by "-":
▪ Mode number: for example, 19(29), where 19 is the mode number
for group settings and 29 is the mode number for individual
settings.
Result: Depending on the mode number that you select,
starting at 20, you will also have to select a unit number, for the
individual control.
6
Use the Left/Right buttons to highlight the number under Unit
No.
7
Use the Up/Down buttons to select an indoor unit number.
Selecting a unit number is NOT necessary when you are
configuring the entire group.
8
Use the Left/Right buttons to select a position number (0 to 15)
for the switch number that you want to change.
▪ Switch number: for example, 1
▪ Position number: for example, 02
8.1
Operating procedure
You can use either the user interface of the heat reclaim ventilation
units or of the air conditioner to adjust the heat reclaim ventilation
unit settings.
Initial settings
▪ Mode numbers 17, 18, and 19: group control of heat reclaim
ventilation units.
In case of individual settings:
Field Settings
Unit No.
0
▪ Mode numbers 27, 28, and 29: individual control.
8.1.1
To change the settings with BRC1E53
Make sure that the switch box lids on the heat reclaim ventilation unit
are closed.
1
Shortly press a button to turn on the screen light.
2
Press and hold the Cancel button (a) for at least 4 seconds to
enter the Service Settings menu.
Return
22
Setting
In case of group settings:
Field Settings
Mode
10
Return
9
Installer and user reference guide
Mode
20
Setting
Use the Up/Down buttons to select the required position
number.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
8 Configuration
c
10 Press the Menu/Enter (b) button and confirm the selection with
Yes.
Field Settings
Save the settings?
Yes
Return
No
Setting
11 After you have completed all the changes, press the Cancel
button (a) twice to return to the normal mode.
SETTING
c
f
a
d e
b
b
NOTICE
Setting 18(28)-11 CANNOT be selected with this user
interface.
a
8.1.2
To change the settings with BRC301B61
Make sure that the switch box lids on the heat reclaim ventilation unit
are closed.
1
With the unit in normal mode, press the Inspection/Trial button
(a) for more than 4 seconds to enter the local setting mode.
2
Use the Ventilation mode button (up - b) and the Airflow rate
button (down - b) to select a mode number.
Result: The code display is blinking.
3
To configure settings for individual units under group control,
press the Timer setting on/off button (c) and select the number
of the unit that you want to configure.
4
To select the setting switch number, press the top section of the
Timer button (d). To select the setting position number, press
the lower section of the Timer button (e).
5
Press the Program/Cancel button (f) once, to enter the setting.
6
Press the Inspection/Trial button (a) to return to normal mode.
Result: The code display stops blinking and lights up.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
23
24
Installer and user reference guide
—
Pre-cool/preheat
Pre-cool/preheat duration
Initial fan
speed
Yes/No setting
for duct
connection
with VRV
system
Setting for cold
areas (fan
operation
when heater
thermostat is
off)
2
3
4
5
17(27)
Without
duct
Nighttime free
cooling timer
(after stop)
1
Nighttime free
cooling (fan
settings)
Target
temperature
for
independent
nighttime free
cooling
Centralised
zone interlock
setting
Pre-heat time
extension
setting
6
7
8
9
30
minutes
minutes
Yes
19°C
Ultrahigh
—
With duct
Ultrahigh
45
minutes
On
On after
2 hours
±1250
hours
02
0
No
18°C
High
High
30
minutes
Off
Off
Approx.
2500
hours
Filter cleaning
time setting
0
17(27)
01
Setting
switch
no.
Setting
mode
Setting
description
List of settings
8.2
—
—
—
On after
6 hours
—
04
minutes
60
—
20°C
—
Stop
minutes
90
—
21°C
—
Low
Without duct
—
60
minutes
—
On after
4 hours
—
03
—
—
—
—
—
06
—
—
22°C
—
Stop
—
—
23°C
—
Low
With duct
—
—
—
On after
8 hours
—
05
—
—
24°C
—
—
—
—
—
—
—
—
07
—
—
25°C
—
—
—
—
—
—
—
—
08
—
—
—
—
—
—
—
—
09
—
—
26°C
Setting position no.
—
—
27°C
—
—
—
—
—
—
—
—
10
—
—
28°C
—
—
—
—
—
—
—
—
11
—
—
29°C
—
—
—
—
—
—
—
—
12
—
—
30°C
—
—
—
—
—
—
—
—
13
—
—
—
—
—
—
—
—
—
—
—
14
—
—
—
—
—
—
—
—
—
—
—
15
8 Configuration
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
18(28)
18(28)
01
11
BRP4A50A
output
switching
selection
(between X3
and X4)
9
Filter
No action
contamination
check**
Operation
output
Heater
output
External input Fresh-up
terminal
function
selection
(between J1
and JC)
(between X1
and X2)
03
04
—
Off
—
On
On
—
—
Fixed A
—
Fixed B
—
Damper Damper
output
output
(fan
(fan
operation) operation)
—
—
Priority Priority on Disable
on
operation nighttime
external
free
input
cooling /
Forced
stop
02
Reset
filter
check
Error
output
Error
output
—
—
—
—
—
—
—
05
Fan
output
(High/
Ultrahigh)
Force
filter
check
—
Operation output
Fan
output
(Low/
High/
Ultrahigh)
—
Fan
output
(Ultrahigh)
Error
Forced off
Fan
output
forced off
stop
operation
No
No
Indication Indication
indication indication supply
exhaust
supply
exhaust
Linear
On
—
Off
8
Fresh-up
mode
7
Indication of
ventilation
mode
4
Automatic
ventilation air
flow mode
Output signal
to external
damper
(X24A)
3
6
Auto restart
setting
2
Off
External signal
Last
JC/J2
command
Setting for
direct Power
ON
0
18(28)
Setting
description
1
Setting
switch
no.
Setting
mode
—
—
—
—
—
—
—
—
07
—
—
24-hour
24-hour
ventilation ventilation
and
output
operation
output
Fan output (Low/
High/Ultra-high)
Air-flow
up
—
—
—
—
—
—
24 hours
ventilation
On/Off
06
—
—
—
—
—
—
—
—
—
—
—
08
Setting position no.
—
—
—
—
—
—
—
—
—
—
—
09
—
—
—
—
—
—
—
—
—
—
—
10
—
—
—
—
—
—
—
—
—
—
—
11
—
—
—
—
—
—
—
—
—
—
—
12
—
—
—
—
—
—
—
—
—
—
—
13
—
—
—
—
—
—
—
—
—
—
—
14
—
—
—
—
—
—
—
—
—
—
—
15
8 Configuration
Installer and user reference guide
25
Installer and user reference guide
26
1A
0
Fresh-up
operation **
Normal
ventilation tap
on automatic
ventilation air
flow control
Off
—
Off
Fan residual
operation
9
Allowed
0
Off
Stop
ventilation by
automatic
ventilation air
flow control
24-hour
ventilation
setting
4
Step1
8
Exhaust fan
step setting*
3
Step1
Off
Reference
concentration
shift for
ventilation air
flow control
(ppm)
Supply fan
step setting*
2
02
Timer
based
check
03
05
Target
Auto
detection
ESP
filter with selection
fan step + target
1-15
detection
filter with
new fan
step
04
Step3
Step3
Step4
Step4
Step5
Step5
On
—
Off
NOT
allowed
+200
NOT
allowed
+600
—
—
—
—
Heater
Heater
operation operation
Allowed
+400
—
Control
by CO₂
sensor
—
–200
Run 1/15 Run 1/10 Run 1/6 Run 1/4
(28 min. (27 min. (25 min.
(22.5
off/2 min. off/3 min. off/5 min.
min.
on)
on)
on)
off/7.5
min. on)
Step2
Step2
Run 1/15 Run 1/10 Run 1/6 Run 1/4
(28 min. (27 min. (25 min.
(22.5
off/2 min. off/3 min. off/5 min.
min.
on)
on)
on)
off/7.5
min. on)
Filter
Filter
contam- contamination
ination
check
check
with fan with new
step 1-15 fan step
01
7
Low tap
setting
1
19(29)
Filter
contamination
inspection
setting
0
19(29)
Setting
description
Setting
switch
no.
Setting
mode
—
—
—
–400
Run 1/3
(20 min.
off/10
min. on)
Step6
Step6
Run 1/3
(20 min.
off/10
min. on)
—
06
—
—
—
–600
Run 1/2
(15 min.
off/15
min. on)
Step7
Step7
Run 1/2
(15 min.
off/15
min. on)
—
07
—
—
—
—
Step 1
Step8
Step8
Step 1
—
08
—
09
—
—
—
—
Step 2
Step 9
Step 9
Step 2
Setting position no.
—
—
—
—
Step 3
Step 10
Step 10
Step 3
—
10
—
12
Step 12
Step 12
Step 5
—
—
—
—
Step 4
—
—
—
—
Step 5
Continuous operation
Step 11
Step 11
Step 4
Continuous operation
—
11
—
—
—
—
Step 6
Step 13
Step 13
Step 6
—
13
—
—
—
—
Step 7
Step 14
Step 14
Step 7
—
14
—
—
—
—
Step 8
Step 15
Step 15
Step 8
—
15
8 Configuration
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
To adjust the auto restart setting to 'on' in the group setting mode, enter mode No. "18", setting switch No. "2" and position No. "02".
Example
Regarding the setting procedure, see the section "Group number setting for centralised control" in the operating manual of either the on/off controller or the central controller.
Mode No. 30: Individual controller
Mode No. 00: Group controller
▪ Group number setting for centralised controller
▪ The setting modes are mentioned as group settings. Between parentheses are the setting modes for individual unit control.
▪ (**) This setting CANNOT be done with BRC301B61.
▪ (*) See the technical data book for pressure drop curves and selection of fan curves (step 1 to 15).
▪ Factory settings are marked with grey backgrounds.
INFORMATION
8 Configuration
Installer and user reference guide
27
8 Configuration
8.3
Settings for all configurations
Setting 17(27)-4: First choose the fan speed. Set it to high or ultrahigh.
Direct duct connection
or external fan
All other system configurations
VAM350~1000
VAM1500+2000
Warning: The ducting
pressure drop of the top
and bottom units has to be
equal to have a balanced
system.
Choose between 19(29)-0-04 or 19(29)-0-05
Setting 19(29)-2 and setting
19(29)-3: Balance return air
and outdoor air with fan steps
1-15, based on the air flow
curves (see the databook) and
the system pressure drop.
Setting 19(29)-2 and setting
19(29)-3: Balance return air
and outdoor air with fan steps
1-15, based on the air flow
curves (see the databook) and
the system pressure drop.
You MUST activate setting
19(29)-0-03.
You can activate setting
19(29)-0-04.
Warning: If it is NOT activated,
the clean filter signal will NOT
be given at the correct time.
Warning: If it is NOT activated,
the clean filter signal will NOT
be given at the correct time.
8.3.1
About setting 19(29)-0-04 and 19(29)-0-05
You can activate setting
19(29)-0-05: the nominal
point is automatically
determined at the nominal
flow rate (see the databook
for specific values).
▪ When you have configured setting 19(29)‑0‑05 successfully, the
system automatically changes it to setting 19(29)‑0‑02.
▪ When you have configured setting 19(29)‑0‑04 successfully, the
system automatically changes it to setting 19(29)‑0‑01.
Installer and user reference guide
28
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
8 Configuration
NOTICE
8.3.3
If you change the ducting, then install clean filters and
reconfigure setting 19(29)‑0‑04 or 19(29)‑0‑05, otherwise
the signal to clean the filters will come too soon. Do NOT
adjust the dampers when setting 19(29)‑0‑04 or 05 is
activated.
▪ You can use the air conditioner's user interface to control up to 16
units, a combination of indoor air conditioner units and heat
reclaim ventilation units.
▪ If the user interface is switched off while you are activating setting
19(29)‑0‑04 or 19(29)‑0‑05, the configuration is aborted. When
you switch the user interface back on, the function starts from the
beginning.
1-group linked-control system
▪ You can configure initial settings for the functions of the heat
reclaim ventilation units. These functions are pre-cool/pre-heat,
ventilation air flow, ventilation mode, and fresh-up. Use the air
conditioner's user interface to configure the initial settings for the
heat reclaim ventilation units. See "8.2 List of settings" on
page 24.
▪ Setting 19(29)‑0‑04 takes between 1 and 6 minutes to complete.
You can check if the setting was completed successfully by
checking if the field setting is changed to 0‑01.
HRV
VRV
P1
P2
▪ Setting 19(29)‑0‑05 takes between 3 and 35 minutes to complete.
You can check if the setting was completed successfully by
checking if the field setting is changed to 0‑02.
P1 P2
c
NOTICE
While activating setting 19(29)‑0‑04 and 19(29)‑0‑05, the
unit is set to heat recovery and the fan is on high or ultra
high. After the configuration, the unit is set back to what it
was before the configuration.
▪ For VAM1500+VAM2000, make sure that the ducting pressure
drop of the top and bottom units is balanced.
▪ The function starts as soon as it is selected and the user interface
is on.
▪ Setting 19(29)‑0‑04 CANNOT be configured if the outside
temperature is ≤–10°C, which is out of the operation range.
▪ Setting 19(29)‑0‑05 CANNOT be configured if the outside
temperature is ≤5°C. In this case error 65‑03 is shown and the unit
stops working. Change the setting to 19(29)‑0‑04.
▪ The setting CANNOT be configured if there are alerts or errors
present.
▪ If booster fans are used, you can ONLY configure setting
19(29)‑0‑03.
▪ You can configure settings 19(29)‑0‑04 and 19(29)‑0‑05 for
multiple units with 1 user interface.
8.3.2
Independent system
HRV
HRV
P1 P2
P1 P2
e
P1 P2
a
b
User interface for air conditioner
User interface for air conditioner
Maximum length of connection line: 500 m
a
b
c
▪ You can ONLY activate these settings with clean filters.
P1P2
Linked control with more than 2 groups
8.3.4
To change the settings, P1/P2 MUST be connected to the heat
reclaim ventilation units. That means that you have to connect a user
interface to the unit. You can remove the user interface after you
have changed the settings.
If the unit is supposed to operate without user interface, do NOT
switch it on with the user interface connected. Otherwise, the unit will
give an error once the controller is removed, because it will keep on
searching for the user interface signal. To resolve the error, perform
a power reset without the user interface connected.
▪ You need the optional adapter printed circuit board (KRP2A51)
connected to 1 unit that is part of the F1/F2 loop. The unit can be
an indoor unit or a heat reclaim ventilation unit.
▪ You can connect up to 64 units, a combination of air conditioners
and heat reclaim ventilation units, to the F1 and F2 terminals.
▪ KRP2A51 ONLY has ON/OFF control. If the heat reclaim
ventilation units run in automatic mode, they have a fixed set
point. If P1/P2 is NOT connected, the set point of the indoor unit is
unknown.
▪ Use the air conditioner's user interface to configure the initial
settings.
VRV
P1 P2
VRV
P1 P2
F1 F2
a
c
b
a
b
c
d
e
d
Master user interface for heat reclaim ventilation unit
Slave user interface for heat reclaim ventilation unit
Switch position: Master
Switch position: Slave
Maximum length of connection line: 500 m
NOTICE
Factory settings: Do NOT change the switch settings when
a user interface is connected. SS1 is a setting switch to
operate without user interface. Changing the settings when
a user interface is connected, will stop the unit from
operating normally. Keep the switch on the PCB at the
factory setting.
P1
P2
b
P1 P2
HRV 1
a
F1 F2
HRV 2
F1 F2
X35A
c
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
29
8 Configuration
a
b
c
User interface for air conditioner
Maximum length of connection line: 1000 m
Optional distant control adapter (KRP2A51)
All control
e
d
Activate setting 17-8-02 to set the collective zone interlock to ON. No
further settings are required.
F1 F2
8.3.5
Direct duct connection
D1 D2
The line connections are the same as for the 1-group linked-control
system.
c
b
HRV
VRV
HRV 1
P1
P2
F1 F2
X35A
P1 P2
c
HRV 2
a
b
c
P1P2
P1 P2
a
b
User interface for air conditioner
User interface for air conditioner
Maximum length of connection line: 500 m
F1 F2 P1
P2
P1 P2
a
P1 P2
a
VRV 1
F1 F2 P1
P2
Initial settings
Activate below setting for direct duct connection. This direct duct
configuration ONLY works if P1/P2 is connected.
▪ Mode number: 17
▪ Switch number: 5
▪ Position number: 02
Other functions
As in 1-group linked-control system, you can also configure other
heat reclaim ventilation unit functions.
8.3.6
Centralised control system
a
b
c
d
e
User interface for air conditioner
Maximum length of connection line: 1000 m
Schedule timer (DST301B51)
Adapter printed circuit board for remote control (KRP2A51)
On/Off signal
If you use the adapter printed circuit board (KRP2A51) or schedule
timer (DST301B51), the following is valid:
▪ You can connect up to 64 units, a combination of air conditioners
and heat reclaim ventilation units, to the F1 and F2 terminals.
▪ This system does NOT require group number setting for
centralised control (auto-address system). The centralised group
number is automatically assigned if the adapter printed circuit
board (KRP2A51) or schedule timer (DST301B51) is connected.
To change the settings, P1/P2 MUST be connected to the heat
reclaim ventilation units. That means that you have to connect a user
interface to the unit. You can remove the user interface after you
have changed the settings.
▪ The adapter printed circuit board and the schedule timer CANNOT
be used together. The adapter printed circuit board allows on/off
control. The schedule timer allows on/off control with a weekly
schedule.
If the unit is supposed to operate without user interface, do NOT
switch it on with the user interface connected. Otherwise, the unit will
give an error once the controller is removed, because it will keep on
searching for the user interface signal. To resolve the error, perform
a power reset without the user interface connected.
▪ You can connect the adapter printed circuit board to the electric
component mounting base of either the heat reclaim ventilation
unit or the air conditioner.
Installer and user reference guide
30
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
8 Configuration
Zone control
All/individual control
d
1
3
2
4
e
F1 F2
F1
F2
F1
F1
F2
F2
F1
F2
a
c
F1
HRV 1
F2
F1 F2
HRV 1
F1
HRV 2
F2
P1
P2
F1 F2
P1 P2
c
HRV 2
F1
P1
F2
b
P2
P1 P2
HRV 3
a
F1 F2
VRV 1
F1
F2
P1
P2
P1
P2
P1 P2
VRV
a
F1 F2
b
a
b
c
d
User interface for air conditioner
Maximum length of connection line: 1000 m
Schedule timer
On/Off controller
If you use the On/Off controller (DCS301B51), the following is valid:
P1 P2
d
a
b
c
d
e
▪ You can connect up to 64 units, a combination of air conditioners
and units, to the F1 and F2 terminals.
▪ You can connect up to 4 On/Off controllers.
▪ You have to assign a central control group number to each heat
reclaim ventilation unit and air conditioner. Regarding the setting
of the group number, see "The centralised control group number
setting" in the operating instructions of the On/Off controller.
▪ Use the air conditioner's user interface to configure the initial
settings.
Example
Setting the centralised group number 2-05 to 1:
Use the local setting on the user interface to set the central control
group number.
Mode number: 00
Central control group number: 2-05
c
Zone 1
Zone 2
User interface for air conditioner
Maximum length of connection line: 1000 m
Centralised controller (DCS302C51 or DCS601C51 or
DCM601A51)
▪ You can connect up to 64 units, a combination of air conditioners
and units, to the F1 and F2 terminals.
▪ With the centralised controller zone 1 and 2 can be controlled
independently.
Zone 2
The heat reclaim ventilation units operate in the zone-linked mode,
as described in "8.3.4 Linked control with more than 2 groups" on
page 29.
Initial settings:
▪ You have to assign a central control group number to each unit
and air conditioner. Regarding the setting of the group number,
see "The centralised control group number setting" in "All/
individual control" on page 31.
▪ For the ventilation air flow setting, follow the procedure described
in "All control" on page 30.
▪ For the zone setting from the centralised controller, see the
operating instructions of the centralised controller.
▪ You can use the centralised controller to control individual units in
the zone for ventilation.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
31
8 Configuration
8.4
About the user interface
8.4.1
User interface for VRV-system air
conditioner
To select ventilation mode
Ventilation mode is used when cooling or heating is unnecessary, so
only the heat reclaim ventilation units are operating.
1
Please read the manual supplied with the user interface (BRC1E53)
for more detailed instructions.
Press the Operation Mode Selector button several times, until
the ventilation mode is selected.
Vent
a
k
To change the ventilation mode
d
1
Press the Menu/Enter button to display the main menu.
e
2
Press the Up/Down buttons to select Ventilation and press the
Menu/Enter button.
f
g
i
Return
h
c
j
3
Operation Mode Selector button
Fan Speed/Airflow Direction button
Menu/Enter button
Up button
Down button
Right button
Left button
ON/OFF button
Operation lamp
Cancel button
LCD (with backlight)
Setting
Press the Up/Down buttons to select Ventilation mode and
press the Menu/Enter button.
Ventilation
2/2
Ventilation Rate
Ventilation Mode
b
a
b
c
d
e
f
g
h
i
j
k
1/2
Main Menu
Airflow Direction
Individual Air Direction
Quick Start
Ventilation
Energy Saving Options
Schedule
Return
4
Setting
Press the Up/Down buttons to select the required ventilation
mode. For more information about ventilation modes, see
"Ventilation modes" on page 32.
Ventilation
2/2
Bypass
Energy Reclain Vent.
Auto
Ventilation mode
Bypass
Return
Setting
To change the ventilation rate
1
Press the Menu/Enter button to display the main menu.
Ventilation modes
2
Press the Up/Down buttons to select Ventilation and press the
Menu/Enter button.
You can change the ventilation mode in the main menu.
1/2
Main Menu
Airflow Direction
Individual Air Direction
Quick Start
Ventilation
Energy Saving Options
Schedule
Return
3
Mode
Description
Auto mode
Using information from the air
conditioner (cooling, heating, fan,
and set temperature) and heat
reclaim ventilation unit (indoor
and outdoor temperatures), this
mode automatically changes
between Energy Reclaim
Ventilation and Bypass mode.
Setting
Press the Up/Down buttons to select Ventilation Rate and press
the Menu/Enter button.
Ventilation
2/2
Ventilation Rate
Ventilation Mode
Return
Setting
Energy Reclaim Ventilation mode The outdoor air is supplied to the
room after passing through a
heat exchange element, where
heat is exchanged with the return
air.
Bypass mode
4
Press the Up/Down buttons to change the setting to Low or
High and press the Menu/Enter button to confirm.
Ventilation
Ventilation Rate
The outdoor air bypasses the
heat exchange element. This
means that outdoor air is
supplied to the room without heat
exchange with the return air.
High
Return
Setting
Installer and user reference guide
32
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
8 Configuration
1
Time to clean filter indication
When it is time to clean the filters, the following message or icon
shows at the bottom of the basic screen: Time to clean filter or .
Clean the filters. For more information, see "11 Maintenance and
service" on page 39.
Cool
2
6
Set to
FRESH UP
28°C
8
Time to clean filter
To remove the Time to clean filter indication
1
Press the Menu/Enter button.
2
Press the Up/Down buttons to select Reset Filter Indicator.
3
Press the Menu/Enter button.
Result: You return to the basic screen. The Time to clean filter
indication is no longer displayed.
Main Menu
Reset Filter Indicator
Airflow Direction
Individual Air Direction
Quick Start
Ventilation
Energy Saving Options
Return
4
3
13
10
9
TEST
1
Operation lamp
This red pilot lamp lights up while the unit is in operation.
1/3
Setting
Cool
11
12
2
Operation/Stop button
Press this button once and the unit starts to operate. Press
this button again and the unit stops.
3
Air flow rate changeover button
Use this button to change the air flow to " " Low, " " High,
" FRESH UP" Low Fresh-up, or "
FRESH UP" High
Fresh-up mode.
Set to
28°C
About error indications
If an error occurs, there is an error icon in the basic screen and the
operation lamp blinks. If a warning occurs, ONLY the error icon
blinks and the operation lamp does NOT. Press the Menu/Enter
button to display the error code or warning and contact information.
Cool
For "FRESH UP" operation
When this indication does NOT show, the volume of outdoor
air supplied into the room and that of the return air
exhausted outdoors is equal.
For "FRESH UP" operation
▪ If the Fresh-up setting is set to "Fresh up air supply": The
volume of outdoor air supplied into the room is larger than
that of return air exhausted outdoors. This prevents odours
and moisture from kitchens and toilets from flowing into the
room. This is the factory setting.
▪ If the Fresh-up setting is set to "Fresh up air exhaust": The
volume of return air exhausted outdoors is larger than that
of outdoor air supplied into the room. This prevents
hospital odours and airborne microorganisms from flowing
out of the room into the corridors.
To change this setting, see "8.2 List of settings" on page 24.
Set to
28°C
Error : Push Menu Button
The error code blinks and the contact address and model name
appear as shown below. In this case, notify your Daikin dealer about
the error code.
Error Code:A1
Contact Info
0123–4567–8900
Indoor Model
Outdoor Model
4
A
Return
8.4.2
User interface for heat reclaim ventilation
units
" Heat Exchange mode
"
In this mode, the air passes through the heat exchange
element to effect Total Heat Exchanging ventilation.
For non-independent systems, starting, stopping and setting a timer
is NOT possible with this user interface (BRC301B61). In such
cases, use the air conditioner user interface (BRC1E53) or the
centralised controller.
" Bypass mode
"
In this mode, the air does NOT pass through the heat
exchange element but bypasses it to effect Bypass
ventilation.
5
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Ventilation mode changeover button:
(" Automatic mode
"(
The unit's temperature sensor automatically changes the
operation mode of the unit to Bypass mode and Heat
Exchange mode.
–––/000
–––/000
Indication of operation control method:
Installer and user reference guide
33
8 Configuration
When the operation of heat reclaim ventilation units is linked
to the air conditioners, this indication may be displayed.
While this indication is displayed, the heat reclaim ventilation
units CANNOT be turned on or off with the user interface of
the heat reclaim ventilation.
6
c
7
When a user interface for air conditioners or devices for
centralised control are connected to the heat reclaim
ventilation units, this icon may be displayed.
While this indication is displayed, you may NOT be able to
turn the heat reclaim ventilation units on or off, or use the
timer function with the user interface of the heat reclaim
ventilation unit.
Indication of air filter cleaning
When the display shows "
9
10
", clean the air filter.
Filter signal reset button
Inspection button
ONLY use this button if the unit is being serviced.
11
/
Schedule timer button:
a
b
c
d
d
Operation lamp
Power source
Power source
Heat reclaim ventilation unit's printed circuit board
If X1 and X2 are connected like in the figure, then, depending on
setting 18(28)‑09, an output is given when the unit is ON and/or
when it is in 24-hour ventilation.
If X3 and X4 are also connected to BRP4A50A, then, depending on
setting 18(28)‑09, a second output can be given about fan operation
or when the unit is in error. If a heater is connected, then the output
is given to the heater.
About the fresh-up operation
8.5.2
Purpose
When combined with a local ventilating fan, such as the ones in
bathrooms or kitchens, the air flow rate of the heat reclaim
ventilation unit is balanced by either fan operation or exhaust
operation. However, a circuit with voltage and low current (16 V,
10 mA) is formed between the JC and J1, so you MUST use a relay
with low-load contact.
This button enables or disables the schedule timer.
Function
Time adjust button:
The unit performs overcharged operation to prevent odour flowing
back.
12
13
X33A
BRP4A50A
Indication of centralised control:
8
L.N
X1
X2
Indication of operation standby:
This icon indicates that the unit is precooling/preheating. The
unit's start-up is delayed until after precooling/preheating is
finished.
Precooling/preheating means that the heat reclaim
ventilation units are NOT started while linked air conditioners
are starting up, for example, before office hours.
During this period, the cooling or heating load is reduced to
bring the room temperature to the set temperature in a short
time.
Programming button:
/
To set the timer
Necessary parts
Operation contact of exhaust ventilating fan (field supply)
1
Press the Schedule timer button.
2
Press the time adjust button to set the time.
3
Press the programming button to save the setting.
8.5
Detailed explanation of settings
8.5.1
To monitor the unit's operation
Example of control wiring:
a
Connect the terminal strip on the adapter printed circuit board
BRP4A50A.
J1
b
JC
a
b
c
Prerequisite: Connect the adapter printed circuit board BRP4A50A
to monitor the operation.
1
b
a
c
Connecting line can be extended to up to 50 m
Fan (field supply)
Printed circuit board
System description:
a
b
a
b
Local ventilating fan
Power supply
You can select either excessive supply mode or excessive exhaust
mode. This function creates a more comfortable environment.
Supply Fresh-up
Exhaust Fresh-up
(Excessive outdoor air supply)
(Excessive exhaust air supply)
Detail
Supply air volume can be set at a higher level than the
exhaust air by the user interface.
Exhaust air volume can be set at a higher level than the
supply air by the user interface.
Major effects
▪ Prevents inflow of toilet odours.
▪ Prevents outflow of airborne infectants from hospital
rooms.
▪ Prevents inflow of outdoor air in winter.
▪ Prevents outflow of odours from rooms in a nursing
home.
Application
Offices, etc.
Installer and user reference guide
34
Hospitals, nursing homes, etc.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
8 Configuration
Supply Fresh-up
Exhaust Fresh-up
(Excessive outdoor air supply)
(Excessive exhaust air supply)
g
Example
a
b
d
d
c
e
i
h
f
c
a
b
c
d
e
f
g
h
i
Portion of fresh-up operation
Air exhaust
Air supply
Heat reclaim ventilation unit (VAM)
Normal ventilation fan
Portion of exhaust operation
Air exhaust
Sick room
Floor area
If an external fan is connected to J1 and JC, take the following into
account:
d
▪ Setting 19(29)‑0‑03 MUST be set, otherwise the filter cleaning
indication will be displayed at the wrong time.
a
f
▪ Make sure that setting 18(28)‑8 is still set for number 01,
indicating fresh-up.
▪ With setting 18(28)‑7 you can choose if there is exhaust air or
supply air fresh-up and if the user interface indicates that fresh-up
is going on.
HRV
a
Description of "J1", "JC"
setting (See
Normal open
"8.2 List of
settings" on
page 24)
"J1", "JC"
1A‑0‑01
Fresh-up
Normal
"OFF" (Factory
setting)
Fresh-up
1A‑0‑02
Fresh-up "ON"
Fresh-up
Fresh-up
h
g
j
X24A
Normal closed
The unit's fresh-up operation corresponds with the following fan
operation:
e
b
▪ The following table describes the unit's operation based on setting
1A‑0 and J1, JC:
Setting
b
c
i
d
a
b
c
d
e
f
g
h
i
j
Air suction/discharge grille
External damper (field supply)
Inspection hole
Switch box
Heat insulator
Outdoor air (fresh air from outdoors)
Exhaust air (exhaust air to outdoors)
Round shape hood
Printed circuit board
Power source
Type
Air supply Fresh-up
Exhaust Fresh-up
The required setting changes for switchover to X24A output (see
below for details).
Ventilation
amount
Air supply
Exhaust
Air supply
Exhaust
Essential wiring
Weak
High
Low
Low
High
Strong
Ultra high
High
High
Ultra high
8.5.3
See "6.5.2 Opening the switch box" on page 16.
About the external damper operation
Functions
Intake of outdoor air when the heat reclaim ventilation unit is off can
be prevented if an external damper is incorporated in the system.
The heat reclaim ventilation's main unit printed circuit board
operates the heat reclaim ventilation and provides a signal for the
external damper.
X24A gives an output when the supply air or exhaust air fan is
running. Put setting 18(28)-3 for number 03 or 04.
8.5.4
About the carbon dioxide sensor
With the CO2 (carbon dioxide) sensor installed, you can adjust the
ventilation volume in function of measured CO2 concentration. The
measured concentration value is compared to programmed trigger
values. Make sure that ventilation mode and air flow rate are set to
automatic.
See "8.2 List of settings" on page 24 for the field setting overview.
▪ Use setting 19(29)‑9‑05 to give control to the CO2 sensor.
▪ Use setting 19(29)‑7 to shift the trigger values.
▪ Use setting 18(28)‑6 to switch between linear and fixed control.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
35
8 Configuration
Linear control
Fixed control
Initialising
20 minutes in high
20 minutes in high
Measuring
Every 5 minutes
Every 20 minutes
Judgement
Every 30 minutes
(average of 6
measurements)
Every 20 minutes
Fixed control
Linear control (minutes)
Trigger
value
b
c
d
e
f
g
Service cover
Heat exchange element
Air filter
Heat exchange element rail
Screw 1
Screw 2
1
Open the service cover hinge.
2
Remove the service cover.
3
Remove the 2 heat exchange elements and the 4 air filters.
4
Remove the screw from the right heat exchange element rail.
5
Remove the heat exchange element rail.
6
Loosen screw 2, and remove screw 1.
UH
H
L
Mode A
Mode B
≥1450
30
—
—
UH
UH
1300~1450
20
10
—
UH
UH
1150~1300
10
20
—
H
H
INFORMATION
Use a crosshead screwdriver, that has a shank larger than
65 mm and a total length of less than 120 mm.
CO₂ ppm (1)
1000~1150
—
30
—
H
H
850~1000
—
20
10
H
L
700~850
—
10
20
L
L
550~700
—
—
30
L
L
400~550
—
—
20
L
stop
0~400
—
—
10
L
stop
To install the carbon dioxide sensor
c
PS
(1)
UH
H
L
CO₂ parts per million
Ultra high
High
Low
b
Example
a
When the sensor measures 900 ppm in linear control, the unit runs
in high mode for 20 minutes and the next 10 minutes in low mode,
then measures again.
d
a
b
c
d
Essential wiring
See "6.5.2 Opening the switch box" on page 16 and the installation
manual that is delivered with the CO2 sensor.
1
Screw 1
Screw 2
Damper motor wire
Clamp
Use the 2 screws to install the CO₂ sensor. See "To remove the
components" on page 36 for details.
To remove the components
NOTICE
Make sure that the damper motor wire is NOT trapped
under the kit.
d
e
d
To route the wiring of the carbon dioxide sensor
X5A
f
d
a
d
e
J2
J1 JC
F2 F1 N/P2 P/P1
X21A
c
J3
X14A X38A X42A X41A
a
X6A X12A X11A
X33A
c
X20A
d
b
g
PS
f
b
c
c
g
b
a
Hinge mechanism
Installer and user reference guide
36
a
b
c
CO₂ sensor
Clamp
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
8 Configuration
c
d
e
f
g
Sealing material
Bush
Switch box
X14A connector
Screw
Explanation
1
Remove the screws of the switch box cover.
The unit compares the indoor and outdoor temperatures after the air
conditioning stops running for the night. If the conditions below are
met, nighttime free cooling starts. When the indoor temperature
reaches the air conditioning setting, nighttime free cooling stops.
2
Open the switch box.
Conditions
3
Follow the same path with the CO₂ sensor wire as the damper
switch (red) and thermistor (black) wires: through the bush
inside the unit and through the left bush in the switch box.
▪ The indoor temperature is higher than the air conditioning setting.
4
Firmly insert the CO₂ sensor wire into the X14A connector.
5
Clamp the CO₂ sensor wire together with the damper switch
(red) and thermistor (black) wires inside the switch box.
6
Cut the accompanying sealing material by following the slit.
Stick each piece on top of the sealing material that is attached
to the bushing, in order to seal the gap around the CO₂ sensor
wire.
7
Bundle the excess CO₂ sensor wire together with the damper
switch (red) and thermistor (black) wires from the inside of the
unit with the accompanying clamp.
8
Cut off the excess edge of the clamp.
▪ The outdoor temperature is lower than the indoor temperature.
If the above conditions are NOT met, reevaluation takes place every
60 minutes.
NOTICE
The nighttime free cooling operation works when the heat
reclaim ventilation unit is off. Therefore, it is NOT possible
to stop the nighttime free cooling function.
With setting 17(27)‑1 you can set the number of hours that have to
pass before the conditions for the free cooling function are checked.
With setting 17(27)‑6 you can set if the fan runs in high or ultra high
mode during the free cooling.
With setting 17(27)‑7 you can set a temperature.
NOTICE
NOTICE
To install the heat exchanger rail correctly, the wire MUST
be clamped.
This function is NOT possible when the heat reclaim
ventilation unit is NOT linked to an air conditioner.
NOTICE
When bundling the wires, make sure to open the control
box completely.
8.5.6
About the pre-cool and pre-heat function
1
Close the switch box cover.
When the pre‑cool/pre‑heat function is set, the heat reclaim
ventilation unit switches on at the configured time (30, 45, or 60
minutes) after the air conditioner starts cooling or heating. By
default, this function is off. To use this function, you have to set it
with the user interface of the air conditioner.
2
Install the components. Follow the reverse procedure of "To
remove the components" on page 36.
If the air conditioner is restarted within 2 hours after it has been
stopped, this function is NOT started.
To install the components
8.5.5
You can enable this function with setting 17(27)‑2.
About the nighttime free cooling
operation
With setting 17(27)‑3 and setting 17(27)‑9 you can set for how long
the start of the heat reclaim ventilation unit is delayed.
Nighttime free cooling function
NOTICE
The nighttime free cooling function is an energy-conserving function
that works at night, when the air conditioner is off. This reduces the
cooling load in the morning, when the air conditioner is switched on.
This is mainly for rooms that contain office equipment that raises the
room temperature.
(°C)
40
8.5.7
a
c
b
OFF
About preventing a feeling of draft
When the heating is on in a setup with air conditioner and the fan is
turned off while the defrost operation is running, the fan of the heat
reclaim ventilation unit is set to low mode or even stopped to prevent
a feeling of draft.
30
20
This function is NOT possible when there is direct duct
connection or when the heat reclaim ventilation unit is NOT
linked to an air conditioner.
You can set the mode of the fan with setting 17(27)‑5.
ON
OFF
NOTICE
f
e
This function is NOT possible when the heat reclaim
ventilation unit is NOT linked to an air conditioner.
d
OFF
22:00
a
b
c
d
e
f
24:00
h
Outside temperature
Indoor temperature
Set temperature
Operating state of air conditioner
Operating state of heat reclaim ventilation unit
Nighttime free cooling operation
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
8.5.8
About 24-hour ventilation
When the user interface is switched off, 24-hour ventilation starts.
You can enable this function with setting 19(29)‑4. With that same
setting, you can set the fan speed.
8.5.9
About the ultra-low setting
If the amount of ventilation is too high, even in low mode, you can
have the fans work intermittently or at a very low speed with setting
19(29)‑1.
Installer and user reference guide
37
9 Commissioning
8.5.10
NOTICE
CAUTION
This function is NOT possible when there is direct duct
connection.
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it will
cause injury.
About the electrical heater operation
If the electrical heater is used, put setting 19(29)‑8 on 03 or 04 and
setting 18(28)‑9 on 01. For more details, see the printed circuit board
heater manual.
8.5.11
About external linkage input
Terminals J2 and JC function as contact signal input to switch the
heat reclaim ventilation unit on or off.
9.3
Checklist before commissioning
After the installation of the unit, first check the following items. Once
all below checks are fulfilled, the unit MUST be closed, ONLY then
can the unit be powered up.
You read the complete installation and operation
instructions, as described in the installer and user
reference guide.
Installation
8.5.12
About filter contamination check
Check that the unit is properly installed, to avoid abnormal
noises and vibrations when starting up the unit.
The filter contamination check can ONLY be done in the same
conditions as 19(29)‑0‑04 or 05. For example if the unit is working in
bypass it CANNOT be checked. In this case a timer is counting the
hours. After a target value is reached, the conditions are changed for
a short time to be able to do the filter contamination check.
Field wiring
Be sure that the field wiring has been carried out
according to the instructions described in the chapter
"6.5 Electrical wiring" on page 15, according to the wiring
diagrams and according to the applicable legislation.
With setting 18(28)‑11‑02: this timer can be set to 0.
Power supply voltage
With setting 18(28)‑11‑03: it can be chosen to do the filter
contamination check at this moment.
Check the power supply voltage on the local supply panel.
The voltage MUST correspond to the voltage on the
identification label of the unit.
After finishing 18(28)‑11‑02 and 03, the setting is put back
automatically to 18(28)‑11‑01 and the unit operation is continued as
before. The setting can ONLY be done when setting 19(29)‑0‑01 or
02 is used.
Earth wiring
Be sure that the earth wires have been connected
properly and that the earth terminals are tightened.
INFORMATION
Insulation test of the main power circuit
This function is NOT possible in case of errors.
9
Using a megatester for 500 V, check that the insulation
resistance of 2 MΩ or more is attained by applying a
voltage of 500 V DC between power terminals and earth.
NEVER use the megatester for the transmission wiring.
Commissioning
Fuses, circuit breakers, or protection devices
9.1
Overview: Commissioning
Check that the fuses, circuit breakers, or the locally
installed protection devices are of the size and type
specified in the chapter "5.4 Preparing the electrical
wiring" on page 11. Be sure that neither a fuse nor a
protection device has been bypassed.
After installation and once the field settings are defined, the installer
is obliged to verify correct operation. Therefore a test run MUST be
performed according to the procedures described below.
This chapter describes what you have to do and know to
commission the system after it is configured.
Internal wiring
1
Checking the "Checklist before commissioning".
Visually check the electrical component box and the
inside of the unit on loose connections or damaged
electrical components.
2
Performing a test run.
Air inlet/outlet
3
If necessary, correcting errors after abnormal completion of the
test run.
Operating the system.
Check that the air inlet and outlet of the unit is NOT
obstructed by paper sheets, cardboard, or any other
material.
Commissioning typically consists of the following stages:
4
Installation date and field setting
9.2
Precautions when commissioning
Be sure to keep record of the installation date on the
sticker on the rear of the front panel according to
EN60335‑2‑40 and keep record of the contents of the field
setting(s).
DANGER: RISK OF ELECTROCUTION
CAUTION
Do NOT perform the test operation while working on
the indoor units, the outdoor unit or the heat reclaim
ventilation units.
When performing the test operation, NOT only the unit to
which the user interface is connected will operate, but all
the units that are linked to this one as well. Working on an
indoor unit or the heat reclaim ventilation unit while
performing a test operation is dangerous.
Installer and user reference guide
38
9.4
Checklist during commissioning
To perform a test run.
9.4.1
About the test run
After completing the installation of the system, turn on the power of
the heat reclaim ventilation units. Refer to the manual of the user
interface of each unit (user interface for air conditioner, central
control unit, etc.) for conducting a trial operation.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
10 Hand-over to the user
10
Hand-over to the user
2
Measure the voltage between terminals on the terminal block
for power supply with a tester and confirm that the power supply
is shut off. In addition, measure points as shown in the figure,
with a tester and confirm that the voltage of the capacitor in the
main circuit is less than 50 V DC.
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
▪ 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.
VAM350~650
▪ 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.
A2P
Maintenance and service
11
C–
C–
▪ Explain the user about energy saving tips as described in the
operation manual.
C+
C+
VAM800~2000
NOTICE
C–
C–
Maintenance MUST be done by an authorized installer or
service agent.
We recommend performing maintenance at least once a
year. However, applicable legislation might require shorter
maintenance intervals.
C+
C+
A1P
NOTICE
We recommend to clean at least once every 2 years (for
general office use). If necessary, shorter maintenance
intervals might be required.
CAUTION
Before accessing, make sure to turn off the operation
switch and disconnect the power.
CAUTION
During operation, NEVER check or clean the unit. It may
cause electrical shock. Do NOT touch the rotating parts, it
will cause injury.
11.1
Overview: Maintenance and
service
This chapter contains information about:
For details refer to the wiring diagram labelled on the outside of the
service cover.
11.3
Checklist for maintenance of the
heat reclaim ventilation unit
▪ Check the following at least once a year: Air filters.
The air filters can get blocked due to dust, dirt, leaves, etc. It is
recommended to clean the air filters yearly. A blocked air filter can
lead to too high pressure leading to worse performance. See
" Maintenance of the air filter" on page 42.
▪ Check the following at least once every 2 years: Heat exchange
element.
The heat exchange element can get blocked due to dust, dirt, etc.
It is recommended to clean the heat exchange element once
every 2 years. A blocked heat exchange element can lead to too
high pressure leading to worse performance. See " Maintenance
of the heat exchange element" on page 43.
▪ Preventing electrical hazards when maintaining and servicing the
system
▪ The maintenance of the heat reclaim ventilation unit.
12
Troubleshooting
11.2
12.1
Overview: Troubleshooting
Maintenance safety precautions
DANGER: RISK OF ELECTROCUTION
This chapter describes what you have to do in case of problems.
It contains information about solving problems based on error codes.
DANGER: RISK OF BURNING
NOTICE: Risk of electrostatic discharge
Before troubleshooting
Carry out a thorough visual inspection of the unit and look for
obvious defects such as loose connections or defective wiring.
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.
11.2.1
To prevent electrical hazards
When performing service to inverter equipment:
1
Do NOT open the electrical component box cover for 10
minutes after the power supply is turned off.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
39
13 Disposal
12.2
DANGER: RISK OF ELECTROCUTION
Precautions when troubleshooting
WARNING
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.
▪ 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.
12.3.1
Prevent hazards due to 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.
12.3
Solving problems based on error
codes
In case of a displayed malfunction code, consult the dealer where
the unit was purchased.
Error codes: Overview
Malfunction code
Particular code
Description
EEPROM failure
Locked rotor
22
Unstable fan rpm: failure of filter contamination check or failure of function 19(29)-0-04/-05
Power supply malfunction
Capacity setting malfunction
Fan communication error
Malfunction of fan motor sensor or fan control driver
CO2 sensor warning
Transmission error between the unit and user interface
Transmission error between main user interface and sub user interface
Wrong user interface installed
Repeated central address
Transmission error between the unit and centralised controller
External protection device activated
01
Indoor air thermistor (R1T) malfunction
02
Indoor air thermistor (R1T) out of operation range
01
Outdoor air thermistor (R2T) malfunction
02
Outdoor air thermistor (R2T) out of operation range
03
Functions 19(29)-0-04/-05 not possible due to low outdoor temperature operation
Damper-related malfunction
Damper-related malfunction+thermistor
In case of malfunction with the code on grey background, the unit still operates. However, make sure to have it inspected and repaired as soon as
possible.
13
Disposal
14.1
NOTICE
Do NOT try to dismantle the system yourself: the
dismantling of the system MUST comply with applicable
legislation. Units MUST be treated at a specialised
treatment facility for reuse, recycling and recovery.
Wiring diagram: Heat reclaim
ventilation unit
The wiring diagram is delivered with the unit, located on the outside
of the service cover.
Legend for wiring diagrams:
A1P
Printed circuit board
A2P~A5P
Printed circuit board assy (fan)
C7
Capacitor (M1F)
F1U
Fuse (250 V, 6.3 A, T) (A1P)
▪ A subset of the latest technical data is available on the regional
Daikin website (publicly accessible).
HAP
Pilot lamp (service monitor - green)
▪ The full set of latest technical data is available on the Daikin
extranet (authentication required).
K1R
Magnetic relay (A1P)
K2R
Magnetic relay (A1P)
L1R~L4R
Reactor
M1D
Motor (damper)
PS
Switching power supply
14
Technical data
Installer and user reference guide
40
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
15 User interface
Q1DI
Field earth leak detector (≤300 mA)
M1F
Motor (exhaust air fan)
R1T
Thermistor (indoor air)
M2F
Motor (supply air fan)
R2T
Thermistor (outdoor air)
R3T
Thermistor (PTC)
S1C
Limit switch damper motor
V1R
Diode bridge
X1M
Terminal (A1P)
X2M
Terminal (outside input) (A1P)
X3M
Terminal (power supply)
Z1C
Noise filter (ferrite core)
Z1F
Noise filter
For VAM1500+VAM2000
F3U
Fuse (250 V, 6.3 A, T) (A2P~A5P)
K5R
Magnetic relay (A1P)
M2D
Motor (damper)
M1F
Motor (exhaust air fan) (bottom)
M2F
Motor (supply air fan) (bottom)
M3F
Motor (exhaust air fan) (top)
M4F
Motor (supply air fan) (top)
S2C
Limit switch damper motor
User interface
Symbols:
SS1
Selector switch
Field wiring
Connector for option
Terminals
X14A
Connector (CO2 sensor)
Connectors
X24A
Connector (outside damper)
Protective earth
X33A
Connector (contact PCB)
X35A
Connector (power supply adapter PCB)
Colours:
For VAM350~650
C1
Capacitor (A2P)
F2U
Fuse (250 V, 5 A, T) (A2P)
F4U
Fuse (250 V, 6.3 A, T) (A2P)
K1R
Magnetic relay (A2P)
M1F
Motor (supply air fan)
M2F
Motor (exhaust air fan)
Z2C
Noiseless earth
Noise filter (ferrite core)
BLK
Black
BLU
Blue
BRN
Brown
GRN
Green
ORG
Orange
RED
Red
WHT
White
YLW
Yellow
For VAM800+VAM1000
F3U
Fuse (250 V, 6.3 A, T) (A2P+A3P)
For the user
15
CAUTION
User interface
Do NOT operate the system when using a room
fumigation-type insecticide. Chemicals could collect in the
unit, and endanger the health of people who are
hypersensitive to chemicals.
CAUTION
NEVER touch the internal parts of the controller.
Do NOT remove the front panel. Some parts inside are
dangerous to touch and appliance problems may happen.
For checking and adjusting the internal parts, contact your
dealer.
Detailed information on required actions to achieve certain functions
can be found in the dedicated installation and operation manual of
the indoor unit.
Refer to the operation manual of the installed user interface.
16
Before operation
WARNING
This unit contains electrical parts.
WARNING
Operation modes:
▪ Heat exchange mode.
▪ Bypass mode.
17
Energy saving and optimum
operation
Observe the following precautions to ensure the system operates
properly.
▪ Adjust the air outlet properly and avoid direct air flow to room
inhabitants.
▪ NEVER place objects near the air inlet or the air outlet of the unit.
Doing so may cause a reduced heating/cooling effect or stop
operation.
Before operating the unit, be sure the installation has been
carried out correctly by an installer.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
41
18 Maintenance and service
▪ When the display shows
(time to clean the air filter), ask a
qualified service person to clean the filters. Refer to
"18 Maintenance and service" on page 42.
A
a
▪ Keep the heat reclaim ventilation unit and user interface at least 1
m away from televisions, radios, stereos, and other similar
equipment. Failing to do so may cause static or distorted pictures.
▪ Do NOT place items under the indoor unit, as they may be
damaged by water.
b
▪ Condensation may form if the humidity is above 80%.
If the heat reclaim ventilation unit is used in an interlocked system or
in a centralised control system, then energy saving functionality is
available. Refer to "8.5 Detailed explanation of settings" on page 34.
B
c
a
Contact your installer or dealer for advice or to modify the
parameters to the needs of your building.
Detailed information is given for the installer in the installation
manual.
18
Maintenance and service
b c
a
b
c
A
B
NOTICE
Maintenance MUST be done by an authorized installer or
service agent.
We recommend performing maintenance at least once a
year. However, applicable legislation might require shorter
maintenance intervals.
2
Maintenance cover
Hinge mechanism
Hanging metal
Models VAM350~1000
Models VAM1500+VAM2000
Take out the air filters from the unit body.
A
a
b
NOTICE
We recommend to clean at least once every 2 years (for
general office use). If necessary, shorter maintenance
intervals might be required.
c
CAUTION
Before accessing, make sure to turn off the operation
switch and disconnect the power.
d
a
B
b
CAUTION
During operation, NEVER check or clean the unit. It may
cause electrical shock. Do NOT touch the rotating parts, it
will cause injury.
18.1
Maintenance of the air filter
c
CAUTION
a
b
c
d
A
B
▪ Do NOT wash the air filter in hot water.
▪ Do NOT dry the air filter over a fire.
▪ Do NOT subject the air filter to direct sunlight.
▪ Do NOT use organic solvent such as gasoline and
thinner on the air filter.
d
Heat exchange element
Handle
Rail
Air filter
Models VAM350~1000
Models VAM1500+VAM2000
3
To clean the air filters, lightly pat it manually or remove dust
with a vacuum cleaner. If excessively dirty, wash it in water.
4
If the air filters are washed, remove water completely and allow
to dry for 20 to 30 minutes in the shade.
5
When dried completely, install the air filters back in place after
the installation of the heat exchange elements. Make sure the
air filters are orientated correctly, as shown in the figure.
▪ Make sure to install the air filter after servicing (missing
air filter causes clogged heat exchange element).
Replacement air filters are available.
To clean the air filters
1
Go into the ceiling through the inspection hole, loosen the
screw of the hinge mechanism (on the left side) to open the
maintenance cover. Take the maintenance cover off by rotating
it around the vertical axis of the hanging metal.
Installer and user reference guide
42
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
19 Troubleshooting
Malfunction
If the system does
NOT operate at all.
Measure
▪ Check if there is no power failure. Wait
until power is restored and restart
operation.
▪ Check if no fuse has blown or breaker is
activated. Change the fuse or reset the
breaker if necessary.
6
▪ Check if the indication of operation
control method on the user interface is
shown. This is normal. Operate the unit
using the air conditioner remote control
or centralised controller. Refer to
"8 Configuration" on page 22.
Install the maintenance cover securely in place.
18.2
Maintenance of the heat exchange
element
▪ Check if the indication of operation
standby on the user interface is shown. It
indicates the pre-cooling/pre-heating
operation. This unit is at stop and will
start operation after the precooling/
preheating operation is over. Refer to
"8 Configuration" on page 22.
CAUTION
▪ NEVER wash the heat exchange element with water.
▪ NEVER touch the heat exchange paper because it can
be damaged if it is forced.
▪ Do NOT crush the heat exchange element.
To clean the heat exchange element
1
Take out the heat exchange elements.
"18.1 Maintenance of the air filter" on page 42.
Refer
to
2
Equip a vacuum cleaner with a brush on the tip of the suction
nozzle.
3
Use the vacuum cleaner and lightly contact the brush on the
surface of the heat exchange element to remove dust.
The amount of
▪ Check if the air filter and heat exchange
discharged air is small
element are NOT clogged. Refer to
and the discharging
"18 Maintenance and service" on
sound is high.
page 42.
The amount of
▪ Check if the air filter and heat exchange
discharged air is large
element
are
installed.
Refer
to
and the discharging
"18 Maintenance and service" on
sound is high.
page 42.
INFORMATION
The unit may not operate as requested due to a filter
contamination check.
If after checking all above items, it is impossible to fix the problem
yourself, contact your installer and state the symptoms, the complete
model name of the unit (with manufacturing number if possible) and
the installation date (possibly listed on the warranty card).
In case a malfunction code appears on the indoor unit user interface
display, contact your installer and inform the malfunction code, the
unit type, and serial number (you can find this information on the
nameplate of the unit).
4
Put the heat exchange element on the rail and insert it securely
in place.
5
Install the air filters securely in place.
6
Install the maintenance cover securely in place.
For your reference, a list with malfunction codes is provided. Refer to
" Error codes: Overview" on page 40. You can, depending on the
level of the malfunction code, reset the code by pushing the ON/OFF
button. If NOT, ask your installer for advice.
20
19
Troubleshooting
Relocation
Contact your dealer for removing and reinstalling the total unit.
Moving units requires technical expertise.
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
WARNING
21
Stop operation and shut off the power if anything
unusual occurs (burning smells etc.).
Disposal
NOTICE
Do NOT try to dismantle the system yourself: the
dismantling of the system MUST comply with applicable
legislation. Units MUST be treated at a specialised
treatment facility for reuse, recycling and recovery.
Leaving the unit running under such circumstances may
cause breakage, electric shock or fire. Contact your dealer.
If the system does NOT properly operate, investigate the system
according to the following procedures.
22
Glossary
Dealer
Sales distributor for the product.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Installer and user reference guide
43
22 Glossary
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.
Maintenance instructions
Instruction manual specified for a certain product or
application, which explains (if relevant) how to install,
configure, operate and/or maintain the product or
application.
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 Daikin that can be
combined with the product according to the instructions in
the accompanying documentation.
Field supply
Equipment NOT made by Daikin that can be combined with
the product according to the instructions in the
accompanying documentation.
Installer and user reference guide
44
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
4P487293-1 2017.08
Copyright 2017 Daikin
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