MTD B90 Datasheet

MTD B90 Datasheet
INSTALLATION - USER - MAINTENANCE MANUAL
EN
i-KI MTD air/water heat pump, heating
only, with DC inverter-driven
compressors, domestic hot water
production, axial-flow fans and hydronic
unit for outdoor installation
i-KIR MTD reverse-cycle air/water heat
pump with DC inverter-driven
compressors, domestic hot water
production, axial-flow fans and hydronic
unit for outdoor installation
i-KI MTD / i-EM2
i-KIR MTD / i-EMR2
0011m ÷ 0061m
U I A
INDEX
U I A
General warnings
3
I A
General technical data
31
U I A
Waiver of liability
3
I A
Operating limits
32
U I A
Fundamental safety rules
3
A
Checking and starting up the unit
34
Receiving and handling the product
4
A
Description of room controller buttons and
display
36
Unit identification
6
A
I A
Operation and functions of the room controller 37
Description of standard unit
7
A
I
Control and operating characteristics
46
Dimensioned drawings
8
I
System configuration
51
Minimum clearances
9
A
I A
Maintenance and service
57
Heat pump installation
10
A
I A
Shutting down for long periods
62
Inside module installation
11
A
I A
Routine maintenance
62
Water connections
12
A
I A
Special maintenance
63
Electrical connections
16
A
I A
Disposal
63
Inside module electrical panel layout
17
U I A
I A
Useful information
63
Mains power supply connections
18
U I A
I A
List of parameters
64
Installer connections to be performed
on the inside module
20
U I A
Installer operations CHECKLIST
66
I A
U I A
U I A
The following symbols are used in this publication and inside the unit:
U
I
A
User
Important
Installer
Prohibition
Assistance
Danger voltage
Eurovent certification program.
The manufacturer reserves the right to modify the data in this manual without warning.
2
i-KI MTD / i-KIR MTD EN 10/2010
Danger high temperatures
GENERAL WARNINGS
These appliances have been designed to chill and/or
heat water and must be used in applications compatible
with their performance characteristics; these appliances
are designed for residential or similar applications.
Incorrect installation, regulation and maintenance or
improper use absolve the manufacturer from all liability,
whether contractual or otherwise, for damage to people,
animals or things.
Only those applications specifically indicated in this list
are permitted
Read this manual carefully. All work must be carried
out by qualified personnel in conformity with legislation in
force in the country concerned.
U I A
The documents supplied with the unit must be consigned to the owner who should keep them carefully for
future consultation in the event of maintenance or service.
All repair or maintenance work must be carried out by
the Company’s Technical Service or qualified personnel
following the instructions in this manual.
The air-conditioner must under no circumstances be
modified or tampered with as this may create situations
of risk. Failure to observe this condition absolves the
manufacturer of all liability for resulting damage.
The warranty is void if the above instructions are not
respected and if the unit is started up for the first time
without the presence of personnel authorised by the
Company (where specified in the supply contract) who
should draw up a “start-up” report.
WAIVER OF LIABILITY
This publication is the sole property of Manufacturer. Any
reproduction or disclosure of such is strictly prohibited without the written authorisation of Manufacturer.
This document has been prepared with maximum care and
attention paid to the content shown. Nonetheless, Manufacturer waives all liability deriving from the use of such document.
FUNDAMENTAL SAFETY RULES
U I A
Read this document carefully. All work must be performed,
components selected and materials used in complete accordance with the legislation in force in material in the country
concerned, and considering the operating conditions and
intended uses of the system, by qualified personnel.
U I A
Ricordiamo che l’utilizzo di prodotti che impiegano energia elettrica ed acqua, comporta l’osservanza di alcune regole fondamentali di sicurezza quali:
The unit must not be used by children or by unfit persons without suitable supervision.
Do not touch the unit with bare feet or with wet or
damp parts of the body.
Never perform any cleaning operations before having
disconnected the unit from the mains power supply.
Do not modify safety or control devices without authorisation and instructions from the manufacturer.
Do not pull, detach or twist the electrical cables coming
from the unit, even when disconnected from the mains
electricity supply.
Do not open doors or panels providing access to the
internal parts of the unit without first ensuring that the
switch QF1 is in the OFF position (see the wiring diagram).
Do not introduce pointed objects through the air
intake and outlet grills.
Do not dispose of, abandon or leave within reach of
children packaging materials (cardboard, staples, plastic
bags, etc.) as they may represent a hazard.
Respect safety distances between the unit and other
equipment or structures. Guarantee adequate space for
access to the unit for maintenance and/or service operations.
Power supply: the cross section of the electrical cables
must be adequate for the power of the unit and the power supply voltage must correspond with the value indicated on the respective units. All units must be earthed in
conformity with legislation in force in the country concerned.
Terminals 6, 7, 9, 10, 11, 12, 13, 21, 22 on the inside
module may be live even when the unit has been disconnected. Check for voltage before proceeding.
Water connections should be carried out as indicated in
the instructions to guarantee correct operation of the
unit. Add glycol to the water circuit if the unit is not used
during the winter or the circuit is not emptied.
Handle the unit with the utmost care (see weight distribution table) to avoid damage.
EN 10/2010 i-KI MTD / i-KIR MTD
3
I A
RECEIVING AND HANDLING THE PRODUCT
VISUAL INSPECTION
STORING THE UNITS
When the items are consigned by the carrier:
- make sure that the goods delivered correspond to the
description on the delivery note, comparing this against
the data on the packaging label.
- make sure the packaging and the unit are intact.
The units must be stored sheltered from direct sunlight, rain,
wind or sand.
Avoid exposing the units to direct sunlight, as the pressure
inside the refrigerant circuit may reach dangerous values
and cause the activation of the safety valves, where fitted.
The units cannot be stacked.
If damage or missing components are noted, indicate this on
the delivery note. A formal complaint should be sent via fax
or registered post to the After Sales Department within eight
days from the date of receipt of the items.
HANDLING PACKAGED UNITS
The unit should always be handled by qualified personnel
using equipment adequate for the weight of the unit, in compliance with the safety standards in force (and subsequent
amendments).
• Lifting by forklift (1)
Insert the forks under the long side of base, opening the
forks as fare as possible.
• Lifting by crane (2)
Use slings with hooks suitable for the weight being lifted.
Secure the hook to the lifting bracket fixed to the unit, use
always four equal length slings, as shown in the figure, to
ensure the weight is balanced.
The packaging should not be removed until the unit is
located in the installation site.
1
HEAT PUMP
Bar code
(compressor side)
H
L
P
The weight of the unit is biased towards the compressor side.
During transport, the unit should be kept in a vertical
position.
i-KI/i-KIR Dimensions
Dimension L
Dimension P
Dimension H
Gross weight
2
mm
mm
mm
Kg
0011m 0031m 0061m
985
1040
1120
425
550
470
865
940
1610
62
91
136
INSIDE MODULE
B
H
P
L
i-EM2/i-EMR2 Dimensions
Dimension L
Dimension P
Dimension H
Gross weight
4
i-KI MTD / i-KIR MTD EN 10/2010
mm
mm
mm
Kg
0011m÷0061m
430
350
180
6,3
I A
RECEIVING AND HANDLING THE PRODUCT
REMOVING THE PACKAGING
The packaging must be removed by the operator using suitable protective equipment (gloves, glasses, etc.).
Take special care not to damage the unit. Observe the local
standards in force as regards disposal of the packaging,
using specialist collection or recycling centres.
The installation - user - maintenance manual is an
integral part of the unit and should therefore be read and
kept carefully.
3
Do not dispose of packaging materials in the environment or leave them within reach of children as they may
represent a hazard.
Envelope B located in the inside module contains:
• user manual;
• CE declaration;
• installation - user - maintenance manual
• 2 fittings complete with probe socket;
• remote room control unit A5 (must be installed)
The following probes are already connected to the inside
module and must be positioned in the system:
• DHW storage water temperature probe BT8
• outside air temperature probe BT11 (must be installed)
• probe BT9 only to be installed when supplementary
source is available
• system return BT1 and outlet BT2 water temperature probes,
to be placed in the probe socket on the fittings supplied
A
Envelope A located in the outside module contains:
• Condensate drain elbow fitting
• CE declaration
Make sure the components listed above are not lost or misplaced.
HANDLING UNPACKAGED UNITS
When the packaging has been removed:
• Remove the base.
• Fit the vibration damping feet (accessories).
• Handle the unit using equipment that is suitable for its
weight (forklift or crane), in compliance with the safety
standards in force (and subsequent amendments).
• Do not drag the unit as the feet may be damaged or break.
Hole Ø22
EN 10/2010 i-KI MTD / i-KIR MTD
5
U I A
UNIT IDENTIFICATION
The heat pump can be identified from:
Packaging
label
PACKAGING LABEL
Describes the product identification data
Packaging
label
RATING PLATE
Describes the unit technical and performance specifications.
Shows the serial number used to uniquely identify the unit.
The serial number is also used to identify the unit’s spare
parts.
Installation and maintenance operations are much more
difficult if the identification plates or anything else needed to clearly identify the product are tampered with,
removed or missing.
If service is required, the following information must be provided to the service centre:
Model, serial number, year of production.
i-KI / i-KIR 0011m
i-KI / i-KIR 0031m
Rating plate
with serial number
Rating plate
with serial
number
i-KI / i-KIR 0061m
NOMENCLATURE
i-KI / i-KIR MTD
0011
Rating plate
with serial number
Power supply voltage:
m = 230V/50Hz/1ph
size
Model
6
i-KI MTD / i-KIR MTD EN 10/2010
m
I A
DESCRIPTION OF STANDARD UNIT
These air cooled reverse-cycle chillers with axial-flow fans
operate with R410A refrigerant fluid and are suitable for outdoor installation.
The units are CE marked, as established by the EU direcHEAT PUMP
i-KI / i-KIR 0011m
tives, including the latest amendments, and the corresponding approximated national legislation.
They are factory tested and on site installation is limited to
water and electrical connections.
INSIDE MODULE
i-EM2 / i-EMR2
Expansion vessel
Pressure gauge
Air vent valve
Safety valve
Board with display
Board
Terminal block
Compressor
Water pump
HEAT PUMP
i-KI / i-KIR 0031m
Safety valve
Air vent
valve
Expansion
vessel
Air vent valve
Pressure gauge
Terminal block
Board with display
Heat exchanger
Compressor
Water pump
Water inlet
HEAT PUMP
i-KI / i-KIR 0061m
Main board
Board with display
Terminal block
Air vent valve
Pressure gauge
Water pump
Compressor
Safety valve
Water outlet
VERSIONS AVAILABLE
i-KI MTD air/water heat pump, heating
only, with DC inverter-driven compressors,
domestic hot water production, axial-flow
fans and hydronic unit.
i-KIR MTD reverse-cycle air/water
heat pump with DC inverter-driven
compressors, domestic hot water
production, axial-flow fans and hydronic unit.
The heat pump is supplied complete with an electronic module to be installed inside the home’s boiler room. The i-EM2
module, for heating only units, and i-EMR2, for reversecycle units, must be supplied at 230V-50Hz and connected
to the heat pump.
The i-EM2 and i-EMR2 modules come as standard with a
remote display terminal, temperature/humidity probe and
outside air temperature probe for system water outlet temperature set point compensation.
Further information and technical specifications are provided
in the manual supplied with the electronic module.
EN 10/2010 i-KI MTD / i-KIR MTD
7
U I A
DIMENSIONAL DRAWINGS
INSIDE MODULE i-EM2 / i-EMR2
Anchoring foot
75
HEAT PUMP i-KI / i-KIR 0011m
43
327
57
73
15,3
300
42
R3/4(20A)
6
771
54
Water
inlet
411
825
580
122,5
HEAT PUMP i-KI / i-KIR 0031m
275
90
60
357
330
Anchoring foot
333
116
122,5
16
388
Water
outlet
155
540
155
180 110
335
881.5
Water
outlet
522.5
850
Water
inlet
HEAT PUMP i-KI / i-KIR 0061m
67
13
356
330
29
13
70
1000
24
1418
120
Water
inlet
1” 1/4
657
Water
outlet
1” 1/4
205
8
590
i-KI MTD / i-KIR MTD EN 10/2010
205
U I A
MINIMUM CLEARANCES
Mor
e th
an 1
e
Mor
than
100
More than 300 mm
HEAT PUMP 0031m
More than 300 mm
HEAT PUMP 0011m
mm
Mor
00 m
m
e th
an 1
00 m
e
Mor
than
120
mm
m
Wiring cover
Wiring cover
Mor
e
Mor
tha
0
n 60
e th
an 6
mm
Mor
00 m
m
Mor
HEAT PUMP 0061m
e
than
m
600
00 m
00 m
m
e
Mor
than
100
100
mm
m
400
an 1
More than 300 mm
e th
an 6
INSIDE MODULE i-EM2 / i-EMR2
100
Mor
e th
m
e th
Mor
an 6
00 m
m
Mor
e th
an 6
00 m
m
EN 10/2010 i-KI MTD / i-KIR MTD
9
HEAT PUMP INSTALLATION
I A
CHOICE OF INSTALLATION SITE
Before installing the unit, agree with the customer the site
where it will be installed, taking the following points into consideration:
• Check that the fixing points are adequate to support the
weight of the unit;
• Pay scrupulous respect to safety distances between the
unit and other equipment or structures to ensure that air
entering the unit and discharged by the fans is free to circulate.
• Follow the instructions shown in the chapter on “Minimum
clearances” to allow room for maintenance operations.
• Unit for outdoor installation
If installing multiple units the clearances must be doubled.
POSITIONING
• Before handling the unit, check the capacity of the lift
equipment used, respecting the instructions on the packaging.
• To move the unit horizontally, make appropriate use of a
lift truck or similar, bearing in mind the weight distribution
of the unit.
• To lift the unit, insert tubes long enough to allow positioning of the lifting slings and safety pins in the special holes
in the base of the unit.
• To avoid the slings damaging the unit, place protection
between the slings and the unit.
• The unit should be installed on special vibration dampers.
• See the chapter on DIMENSIONAL DRAWINGS for the
support positions and the corresponding weights for the
correct sizing of the vibration dampers.
• Fix the unit, making sure it is level and that there is easy
access to water and electrical components.
• If the site is exposed to strong winds, fix the unit adequately using tie rods if necessary.
• In heating mode the unit produces a significant quantity of
condensate, which must be suitably drained. Condensate
drainage must not cause problems to objects or people.
10
i-KI MTD / i-KIR MTD EN 10/2010
• If the outside air temperature is less than 0°C, the condensate may freeze; in these case fit a frost protection heater
on the drain line.
• For correct operation of the unit, avoid the following:
- bstacles to air flow
- leaves that may block the heat exchange coil
- strong winds that stop or reinforce air flow
- sources of heat too close to the unit, recirculation or
stratification of air
I A
HEAT PUMP INSTALLATION
CHOICE OF INSTALLATION SITE
Before installing the unit, agree with the customer the site
where it will be installed, taking the following points into consideration:
• the unit must be installed indoors;
• the unit must be installed by fastening to a vertical wall
• safety distances between the unit and other equipment
• careful attention must be paid to structures so as to
ensure sufficient ventilation.
• Follow the instructions shown in the chapter on DIMENSIONED DRAWINGS to allow room for maintenance operations.
• The maximum length of the connection cable between iKI/i-KIR and the i-EM2/i-EMR inside module is 30 m, making this also the maximum distance between the two modules.
If installing multiple units the clearances must be doubled.
A
POSITIONING
• See the figure on the side for the points used to fasten the
module (A) to the vertical wall and corresponding distances.
• Fix the unit, making sure there is easy access.
"N"
"6"
"60"
"L"
"PE"
A
EN 10/2010 i-KI MTD / i-KIR MTD
11
I A
WATER CONNECTIONS
The choice and installation of components is the responsibility of the installer who should follow good working practice
and current legislation. Before connecting the pipes, make
sure they do not contain stones, sand, rust, dross or other
foreign bodies which might damage the unit.
Construction of a bypass is recommended to enable the
pipes to be washed through without having to disconnect
the unit (see drain valves). The connection piping should be
supported in such a way as to avoid it weighing on the unit.
Water connection dimensions
Required components
The following components must be installed in the
water circuit:
0011m
57
43
(3/4”)
water
return
54
(3/4”)
water
outlet
388
Recommended components
0031m
180
110
(1”)
water outlet
(1”)
water return
60
90
The following components should be installed in the water
circuit:
1. Two pressure gauges with a suitable scale (intake and
outlet);
2. Two vibration damper joints (intake and outlet);
3. Two shut off valves (normal in intake and calibrating in
outlet);
4. Two thermometers (intake and outlet);
5. All the pipes must be insulated with suitable material to
prevent the formation of condensate and heat loss. The
insulating material must be a vapour barrier. Make sure
that the control and shut off devices protrude from the
insulation.
6. At the lowest points in the system, install drain valves for
easy emptying.
7. At the highest points in the system, install automatic or
manual air vent valves.
8. The unit is fitted as standard with an expansion vessel (8
liters); make sure this is correctly sized for the water
content of the system and the expected operating temperature, otherwise install an additional expansion vessel.
Failure to install the flow switches will mean the heat
exchangers are not protected in the event of no flow of
liquid. The Manufacturer cannot be held liable for any
damage to the unit and/or the system following the failure to install these devices or the filter.
0061m
(1” 1/4)
water return
The correct operation of the components that help
ensure the safety of the appliance and the system
should be checked regularly.
Specifically, this involves cleaning the filters and checking the operation of the flow switches installed.
120
(1” 1/4)
water outlet
657
Make sure that the frost protection heaters on the heat
exchanger are powered when the unit is off.
Water flow to the chiller unit must conform to the values
shown in the section on “General Technical Data”.
The flow of water must be maintained constant during operation. The water content of the unit must be such as to avoid
disturbing operation of the refrigerant circuits.
67
12
1. A flow switch (inlet). The flow switch must be calibrated by the installer to a value equal to 70% of rated flow (obligatory).
2. An intake filter must be installed as close as possible to the evaporator and positioned to allow easy
access for routine maintenance.
70
i-KI MTD / i-KIR MTD EN 10/2010
I A
WATER CONNECTIONS
Probe socket fittings
- Remove the protective caps from the water connections
- Install the probe socket fittings supplied on the system circuit inlet and return. For i-KI/i-KIR 0011m units, install
the 1"-3/4" reducers as standard between the probe
socket fittings and water connections. To fasten the
probe socket fittings use two spanners. Place probe BT1
on the inlet connection and BT2 on the outlet connection.
Probe socket
Water outlet connection
Warnings: use conductive paste to improve the temperature reading.
Water return connection
Fasten the probes placed in the probe sockets to the fittings,
using suitable ties.
Risk of freezing
The unit must be prevented from freezing at outside air temperatures around 0°C.
1. use suitable percentages of antifreeze (see “Ethylene
glycol solutions”)
2. protect the piping with heating sheaths,
It is recommended to use non-toxic food grade antifreeze,
compliant with the standards in force in the countries where
the unit is used, if domestic hot water production is also featured.
The antifreeze used must be corrosion inhibited and compatible with the water circuit components.
In caso di unità ferma per un lungo periodo di tempo si consiglia di svuotare l’impianto verificando che non vi siano
ristagni d’acqua nei punti più bassi dell’impianto o rubinetti
chiusi nei quali si possa fermare dell’acqua.
Ethylene glycol solutions
Freezing point (°C)
Water and ethylene glycol solutions used as a heat carrier in
the place of water reduce the performance of the unit.
Multiply the performance figures by the values given in the
following table.
The heat pumps must be fitted with a filling/top-up system connected to the return line and a drain valve in the
lowest part of the system.
Systems filled with antifreeze or subject to special legislative requirements must be installed with low-loss
headers.
Water quality
The manufacturer is not liable for obstruction, breakage
or noise resulting from the failure to install filters or
vibration dampers.
Particular types of water used for filling or topping up
must be treated with appropriate treatment systems.
For reference values, see the table.
Fouling factors
The performance data given refer to conditions with clean
evaporator plates (fouling factor = 1).
For different fouling factors, multiply the figures in the performance tables by the coefficient given in the following table.
0
-5
-10
-15
-20
-25
Percentage of ethylene glycol by weight
cPf
cQ
cdp
0
1
1
1
12%
0,985
1,02
1,07
20%
0,98
1,04
1,11
28%
0,974
1,075
1,18
35%
0,97
1,11
1,22
40%
0,965
1,14
1,24
cPf: cooling capacity correction factor
cQ: flow rate correction factor
cdp: pressure drop correction factor
PH
Electrical conductivity
Chlorine ions
Sulphuric acid ions
Total iron
Alkalinity M
Total hardness
Sulphur ions
Ammonia ions
Silicon ions
Fouling factors
(m2 °C/W)
-5
4,4 x 10
0,86 x 10-4
1,72 x10-4
f1
6-8
less than 200 mV/cm (25°C)
less than 50 ppm
less than 50 ppm
less than 0.3 ppm
less than 50 ppm
less than 50 ppm
none
none
less than 30 ppm
Evaporator
fk1
0,96
0,93
0,99
0,98
fx1
0,99
0,98
f1: capacity correction factor
fk1: compressor power input correction factor
fx1: total power input correction factor
EN 10/2010 i-KI MTD / i-KIR MTD
13
I A
WATER CONNECTIONS
System circuit connection
• Use a flat gasket to ensure tightness
• Connect the flexible joints to the probe socket fittings
installed on the heat pump
• Connect the system pipes to the flexible joints
• Use two spanners to tighten the water connections
• Install the filter on the system return pipe
The expansion vessel pre-charge pressure depends on the
height the heat pump is installed at.
To determine the pre-charge value, proceed as follows:
Vessel pre-charge = H + 0.3
H in bars (10 metres ~ 1 bar)
Maximum water content in the system
The heat pump is supplied with expansion vessel for the
SYSTEM (NOT FOR DOMESTIC HOT WATER) and a 3 bar
safety valve.
The expansion vessel is suitable for the radiant panel system, hydronic terminal system and radiator system with following installation maximum water content *:
Radiant panel
system
Size
0011m
0031m
0061m
Hydronic
terminal system
Hot water at 35°C Hot water at
and cold water 45°C cold water
at 18°C
at 7°C
l
l
l
300
400
400
180
240
240
H
Radiator
system
For height differences exceeding 12 metres, the volume of
water in the system as described above may decrease;
evaluate whether the expansion vessel supplied is sufficient
for each system, otherwise install an additional expansion
vessel.
Up to 60°C
100
135
135
* expansion vessel pre-charged to 150 kPa (max 12 metre
height difference)
Water content in the system
The minimum system water content must be guaranteed at
all times.
Expansion vessel size
Safety valve calibration
Size
Minimum water content
l
0011
26
0031
26
0061
60
Size
Expansion vessel
l
0011
6
0031
8
0061
8
bar
0011
3
0031
3
0061
3
Size
Safety valve
Utility water circuit connection diagram
Factory connections
Installer connections
1
6
9
5
11
2
3
10
T
13
F
UTILITY
RETURN
12
1
6
1
9
8
7
11
13
2
T
4
12
1
2
3
4
14
Pressure gauge
Vibration damper joint
Shut off valve
Calibrating valve
5
6
7
8
Flow switch (obligatory)
Thermometer
Pump
Safety valve
i-KI MTD / i-KIR MTD EN 10/2010
9
10
11
12
Expansion vessel
Wire mesh filter
Temperature sensor
Unit fill/drain valve
13 System vent
13
UTILITY
OUTLET
I A
WATER CONNECTIONS
Condensate drain
The unit is fitted with condensate pan; this must be connected to a drain system to take away the water that forms, see
the drawing.
In heating mode the unit produces a significant quantity of
condensate, which must be suitably drained.
Proceed as follows:
• Connect the unit condensate drain
• Make sure the drain hose has a incline of at least 2 cm/m,
without obstructions or choking.
• Connect the condensate drain hose to a rainwater drain.
Do not connect to the sewage system as odours may be
sucked up if the water in the drain trap evaporates.
• After connecting, check correct drainage of the condensate by pouring water into the pan.
• If necessary, suitably insulate the condensate drain hose.
• Condensate drainage must not cause problems to objects
or people.
Hose
Condensate
drain elbow fitting
If the outside air temperature is less than 0°C, the condensate drained from the collection pan may freeze.
The unit must be supported on a suitable structure or brackets to keep it off the ground, with a frost protection heater fitted on the drain line.
FILLING THE SYSTEM
- Before starting to fill, place the unit mains
switch QF1 in the OFF position.
Before filling, check that the system drain
OFF
valve is closed.
- Open all system and terminal air vents.
- Open system shut off valves.
- Start filling by slowly opening the system water fill valve
outside the unit.
- When water begins to leak out of the terminal air vent
valves, close them and continue filling until the pressure
gauge indicates a pressure of 1.5 bar.
ON
The system must be filled to a pressure of between 1
and 2 bars.
It is recommended that this operation be repeated after
the unit has been operating for a number of hours. The
pressure in the system should be checked regularly and
if it drops below 1 bar, the water content should be
topped-up.
Check the tightness of the joints.
EMPTYING THE SYSTEM
ON
OFF
- Before starting to empty, place switch QF1
in the “OFF” position
- Make sure the system fill/top-up water
valve is closed.
- Open the drain valve outside the unit and
all the installation and terminal air vent
valves..
If the fluid in the circuit contains antifreeze, it should
not be allowed to drain freely, as it is pollutant.
It should be collected for possible reuse.
When draining after heat pump operation, take care as
the water may be hot (up to 50°).
EN 10/2010 i-KI MTD / i-KIR MTD
15
I A
ELECTRICAL CONNECTIONS
The heat pumps must be installed downstream of a main
switch (QF1, see wiring diagram), as required by the standards in force in the country where the unit is installed. Connection to the mains power supply and the connection of the
flow switch to the corresponding terminals must be performed by authorised personnel in compliance with the standards in force.
For all electrical work, refer to the electrical wiring diagrams
in this manual.
It is also recommended to check that:
- The characteristics of the mains electricity supply are adequate for the power ratings indicated in the electrical specifications below, also bearing in mind the possible use of
other equipment at the same time.
Power to the unit must be turned on only after installation work (plumbing and electrical) has been completed.
All electrical connections must be carried out by qualified personnel in accordance with legislation in force in
the country concerned
Respect instructions for connecting phase, neutral and
earth conductors..
The power line should be fitted upstream with a suitable
device to protect against short-circuits and leakage to
earth, isolating the installation from other equipment.
Voltage must be within a tolerance of ±10% of the rated
power supply voltage for the unit (for three phase units,
the unbalance between the phases must not exceed 3%).
If these parameters are not respected, contact the electricity supply company.
For electrical connections, use double insulation cable
in conformity with legislation in force in the country concerned.
How to connect the cables to the terminal
Pay attention during wiring operations
• When stripping a main cable, always use special tools
such as wire strippers. If no specific tool is available, strip
the wires carefully using a knife, etc.
(1) Use crimp-on terminals with insulating sleeves as illustrated in the figure below for connecting the wires to the
terminal block.
(2) Securely fasten the crimp-on terminals to the wires using
a special tool, so that the wires don’t come free.
Crimp-on
terminal
Stripped wire: 10 mm
Sleeve
(3) Use the cables specified, connect them securely and in
such a way that they don’t exert pressure on the terminals.
(4) Use a suitable screwdriver to tighten the screws on the
terminals. Don’t use damaged screwdrivers, otherwise
the screw heads may also be damaged and the screws
cannot be tightened correctly.
(5) Don’t over-tighten the screws on the terminals, otherwise
they may break.
Screw with special washer
Screw with special washer
Crimp-on terminal
Cable
Crimp-on terminal
Terminal blocks
A thermal overload switch and a lockable mains disconnect switch, in compliance with the CEI-EN standards (contact opening of at least 3mm), with adequate switching and residual current protection
capacity based on the electrical data table shown
below, must be installed as near as possible to the
appliance.
An efficient earth connection is obligatory.
The manufacturer cannot be held liable for any damage
caused by the failure to correctly earth the unit.
In the case of three phase units, ensure the phases
are connected correctly.
Cable
Make sure a dedicated power supply with residual current
circuit breaker is used.
In accordance with the following designations, use cables
with wire sizes as described in the table below.
The power cable must be approved in compliance with IEC
60245 IEC57(H05RN-F)
As concerns all-pole disconnection, the product requires a
hard-wired overcurrent protection device in compliance with
wiring standards and relevant national requirements. The
classification of this device must be suitable for the product
specifications.
Do not use water pipes to earth the unit.
Size
WARNING
• The power supply current rating must be equal to the
sum of the current drawn by the air-water heat pump
and the current drawn by any other electrical appliances.
If the contracted current rating is insufficient, make
sure this is adapted accordingly.
• If the voltage is low and the air-water heat pump has
difficulty starting, contact your electricity supplier to
have the voltage increased.
16
i-KI MTD / i-KIR MTD EN 10/2010
Power
supply cable
(mm2)
Internal electronic
module connection
cable (mm2)
Swotch
rating
(A)
MAX.
MIN.
MAX.
MIN.
0011m
2,0
1,5
2,0
1,5
16
0031m
4,0
3,5
2,5
1,5
20
0061m
5,5
4,0
5,5
4,0
32
I A
ELECTRICAL CONNECTIONS
Strip the end of the connection cables according to the measurements shown in the following drawing.
WARNING
The connection cable must be stripped along a 10 mm section. If this section is shorter, contact may be defective.
Longer sections may cause short-circuits.
• Use a residual current circuit breaker with a gap of around
3 mm between contacts.
• Poor wiring may not only cause malfunctions but also
damage to the PC board.
• Suitably tighten all the screws.
• To check these are tight, tug the cable lightly.
Power supply
Residual
current
circuit
breaker
10 mm
30 mm
Internal electronic module
Electrical data at maximum conditions allowed (full load)
Size
Power supply
i-EM2 / i-EMR2
0011m÷0061m
(V-Ph-Hz)
230-1-50
Size
Power supply
i-KI / i-KIR
0011m
0031m
0061m
(V-ph-Hz)
230-1-50
230-1-50
230-1-50
F.L.A.
(A)
10,9
18,3
25,0
Total
F.L.I. S.A.
(kW) (A)
2,48 0,8
4,12 1,4
5,70 1,4
F.L.A.
(A)
6
Fan
F.L.I.
(kW)
0,05
0,10
0,14
FU5
(A)
4
Fuses (5x20T 250V)
FU6
(A)
1,25
Maximum values for sizing the protection switches and power supply
cables.
FU7
(A)
0,5
Pump
Fuses (5x20T 250V)
F.L.I. CF1 CF2 CF3 CF4 CF5 CF6
(kW) (A) (A) (A) (A) (A) (A)
0,09 15 3,15 3
15 15 15
0,13 25 15
5 3,15 3,15 3,15
0,18 30
5
3
3 3,15
CF7
(A)
15
3,15
3,15
F.L.A. Maximum current input
F.L.I. Maximum power input
S.A. Start-up current
I A
INSIDE MODULE ELECTRICAL PANEL LAYOUT
FU5
FU6
FU7
KA8
KA7
KA6
KA1
A3
TC1
U N
PE
FU5
FU6
FU7
A1
6 7 9 10 11 12 13 21 22 25 26 27 28 29 30 33 34 39 40 41 42 43 44 45 46 47 48 49 50 5152 53 54 55 56 57 58 59 60
PE
PE
INSTALLER TERMINAL BLOCK
EN 10/2010 i-KI MTD / i-KIR MTD
17
I A
MAINS POWER SUPPLY CONNECTIONS
- Before connecting the unit to the mains power supply,
make sure that for each connection to the mains power
supply switch QF1 is open (“OFF”).
1
ON
OFF
- Remove the protective cover from the heat pump terminal
block by unscrewing the fastening screw.
2
Wiring cover
Screw
- Remove the protective cover from the electrical panel on
the inside module by unscrewing the fastening screws and
removing the cover.
3
INSIDE MODULE SUPPLIED WITH CONNECTION TO THE HEAT PUMP
- If power is supplied to the inside module via a connection to the heat pump, connect power to the heat pump and the communication cable to the inside module as shown in figure 4.
4
Power supply
Residual
current circuit
breaker QF1
A
C
L
N
1
2
PE U N
3
POWER
Power cable (A)
18
i-KI MTD / i-KIR MTD EN 10/2010
Connection cable to inside
electronic module (C)
60
I A
MAINS POWER SUPPLY CONNECTIONS
- Make sure that all the protective devices removed to make the electrical connections have been repositioned before powering
up the unit.
- Reposition the wiring cover on the heat pump and the cover on the inside module and fasten them to the unit
- For all mains power connections, move the main switch QF1 (outside the appliance) to “ON”.
HEAT PUMP AND INSIDE MODULE POWERED SEPARATELY
- If power is supplied to the inside module separately from the heat pump, connect power to the heat pump, the communication
cable from the heat pump to the inside module and power to the inside module, as shown in figure 5.
5
Power supply
Power supply
Residual
current
circuit
breaker
QF1
Residual
current
circuit
breaker
QF2
A
B
B
C
L
N
1
2
PE U N
3
60
POWER
Connection cable to inside
electronic module (C)
Power cable (A)
Power cable (B)
- Make sure that all the protective devices removed to make the electrical connections have been repositioned before powering
up the unit.
- Reposition the wiring cover on the heat pump and the cover on the inside module and fasten them to the unit
- For all mains power connections, move the main switch QF1 (outside the appliance) to “ON”.
- When connecting the circuit breakers and power cables to the inside and outside module make sure phase and neutral are
connected correctly.
EN 10/2010 i-KI MTD / i-KIR MTD
19
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
Below is a list of the electrical connections that the installer needs to complete for the INSIDE MODULE only.
The maximum length of probe cables is 100 m for 1 mm2 cables, and 50 m for 0.5 mm2 cables.
Outside air probe (BT11) connection
/
1 2H
Installation instructions
The outside air probe must be installed:
• outside of the home
• not in direct sunlight, away from flue gas discharges, air
outlets, or doors and windows.
• on a perimeter wall facing north/north-west
• at a minimum height of 2.5 metres above the ground or at
most half way up the house.
min2,5 m
H
The outside air probe allows the system water temperature set
point to be compensated during heating or cooling operation.
N
N-W
Mounting method:
• Open the cover of the sensor by unscrewing the 4 screws.
• Attach a probe to the wall and the correct position as
described above.
• For the electrical connections see “Connection diagram”.
• Re-place the cover of the sensor.
BT11
1
2
45 46
Water outlet and return temperature probe BT1 and
BT2 connection to heat pump
• Fit probes BT1 and BT2 in the probe sockets on the heat
pump outlet and return fittings using super-conductive
paste.
• Fasten the probes to the corresponding fittings using ties.
• Connect the probes to the inside module terminal block as
shown in the figure.
• Carefully insulate the entire area of the probe socket fittings so as to prevent condensate or energy losses.
• If the probe cables need to be extended make sure the
extensions are positioned indoors or inside the heat pump.
TECHNICAL DATA
Sensing element
Degree of protection
Perm. ambient / carriage temperature
Measuring range
Materials
NTC 10Kohm ± 1% (25°C)
IP65
-50°C...+100°C
-50°C...+100°C
PA 15% GK, Colour RAL 9010
BT2
58 59
Water outlet connection
Tie
BT1
Water return connection
20
i-KI MTD / i-KIR MTD EN 10/2010
Tie
56 57
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
A5 room controller connection
Installation instructions
The room controller must be installed in the best reference
position for temperature control.
Position the room controller as follows:
• around 1.5 metres from the floor, in a part of the room that
allows the sensor to accurately measure the room temperature;
• away from cold air flows, sunlight or other sources of heat.
• leave enough space above the room controller to allow
assembly and removal where necessary.
• If the room controller is removed from its base, it disconnects from the power supply and consequently is no
longer operating.
min.
10 cm
Installation procedure
Assembly
• Separate the front from the rear of the terminal using a
screwdriver r (1)
• Disconnect the 4-pin connector from the front part (2)
• Remove the cover A1, unscrewing the screw A2 (3).
• Fix the controller support to the wall using the holes A3
(4). Support hole size and spacing in figure (5).
• Make the electrical connections as shown in the figure (6),
also see the wiring diagram.
3
4
1
2
5
A3
131
83,5
A3
A1
86
E
A2
6
A5 room controller terminal block
Installer terminal block
24 VAC
GND
TxRx -
GND
Number of wires
Power supply wire size
Maximum distance
TxRx +
51 52 53 54 55
5 shielded
0.5 mm2
500 m
EN 10/2010 i-KI MTD / i-KIR MTD
21
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
• Close the cover A1 and secure it with the screw A2
• Plug in the 4-pin connector, figure (7)
• Replace the terminal, starting with the lower tabs, applying
a hinge movement. Make sure that the electrical wires are
inside to ensure correct fastening (click on).
• Dimensions of A5 room controller figure (8).
Wall
7
86
8
143
YV5 3-way valve for domestic hot water production
The 3-way valve installed outside of the unit deviates the
flow of hot water produced by the unit to the DHW storage
tank.
During domestic hot water production, the cooling/heating
demand is not satisfied.
Wire the three-way valve supplied as an accessory by Manufacturer following the instructions shown in the figure.
The valve is also fitted with a limit switch. The limit switch
contact is either closed or open based on the position of the
valve.
Limit switch (red and green wires):
Auxiliary contact closed = Valve open
Auxiliary contact open = Valve closed
If not supplied by Manufacturer, the 3-way valve for domestic hot water production should have the following characteristics:
• Voltage 230V AC, 50/60 Hz
• Opening/closing time 10s.
• Delta P 500 kPa
• Fluid temperature 0°C to 90°C
Use three-way valves with pressure drop below 20 kPa.
For further details see the chapter “Operating characteristics”.
Optional connection
KM2 System outlet electric heater
An electric heater installed at the outlet can be activated as
a supplementary heater for the system.
22
i-KI MTD / i-KIR MTD EN 10/2010
28
YV5
9 12 13
Brown
Auxiliary contact
Black
Blue
Green
Red
Yellow/Green
If three-way valves with a travel time greater than 10 seconds are used, modify the setting of parameter 0231
Description
Three-way valve
travel time for
domestic hot water
production
Menu Parameter Default
no.
Mn02
12
0231
Value to be set
UOM
Set the travel time sec.
for valves not
supplied by the heat
pump manufacturer
1
6 7
43 44
230V / 400V
Solution 1
System with heat pump and electric heater with storage
tank.
Position probe BT9 in the storage tank.
8
N
BT9
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
Solution 2
System with heat pump and outlet electric heater WITHOUT
storage tank.
Position probe BT9 on the system outlet pipe.
2
6 7
43 44
BT9
230V / 400V
N
Outlet electric heater control
A) REPLACEMENT: The electric heater is enabled when
the outside temperature is less than the value of parameter
0304 and the compressor is off, figure 3.
To enable heater activation in REPLACEMENT mode set
parameter 0303 = 1 and 010G = 1.
Electric heater operation reflects the trend in water outlet
temperature, as shown on the graph in figure 4.
If the heat pump shuts down due to an alarm, the electric
heater is activated automatically regardless of the outside
air temperature.
In REPLACEMENT mode the electric heater activation
delay time is ignored, and the device is activated immediately if necessary.
Outlet electric heater operating parameters in REPLACEMENT mode
Description
Activation electrical heater
0 = Electrical Heater not enabled
1 = Electrical Heater enabled
Type of outlet electric heater operation
0 = Supplementary
1 = Replacement
Enable boiler
0 = Boiler not enabled
1 = Boiler enabled
Activation with low outside air temperature
0 = Function not enabled
1 = Function enabled
Outside air temperature to enable electric heater
Integration time to activate outlet electric heaters
Menu Parameter Value to be UOM
no
set
Mn03
0300
1
Mn01
010G
1
Mn03
0301
0
Mn03
0303
1
Mn03
0304
Mn06
0617
Example
-5°C
600
°C
°C*sec
Set the parameters following the sequence described in
the table
B) SUPPLEMENTARY: the electric heater operates in supplementary heating mode, together with the compressor, to
satisfy the heating load.
Supplementary heating for low outside air temperature
The electric heater is enabled only when the outside temperature is less than the value of parameter 0304, figure 3.
To enable supplementary heating for low outside air temperature set parameter 0303 = 1 and 010G = 0
Electric heater operation reflects the trend in water outlet
temperature, as shown on the graph in figure 4.
Outlet electric heater operating parameters in SUPPLEMENTARY mode for OUTSIDE AIR TEMP.
Description
Activation electrical heater
0 = Electrical Heater not enabled
1 = Electrical Heater enabled
Type of outlet electric heater operation
0 = Supplementary
1 = Replacement
Enable boiler
0 = Boiler not enabled
1 = Boiler enabled
Activation with low outside air temperature
0 = Function not enabled
1 = Function enabled
Outside air temperature to enable electric heater
Minimum outside air temperature for
heat pump operation (make sure the
value set is the same as shown in the
table)
Electric heater delay time (allows the
heat pump to reach steady operation
and thus avoid activating the heater
when not needed)
Integration time to activate outlet electric heaters
Menu Parameter Value to be UOM
no
set
Mn01
0300
0
Mn03
010G
1
Mn03
0301
0
Mn03
0303
1
Mn03
0304
°C
Mn03
0311
Example
-5°C
-20
Mn06
0616
60
min.
Mn06
0617
600
°C*sec
°C
Set the parameters following the sequence described in
the table
EN 10/2010 i-KI MTD / i-KIR MTD
23
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
Supplementary heating always enabled
Supplementary heating with the electric heater is enabled
for all outside air temperatures.
To enable heating at all times set parameter 0303 = 0 and
010G = 0
Electric heater operation reflects the trend in water outlet
temperature, as shown on the graph in figure 4.
Outlet electric heater operating parameters in SUPPLEMENTARY mode when always ENABLED
Description
Activation electrical heater
0 = Electrical Heater not enabled
1 = Electrical Heater enabled
Type of outlet electric heater operation
0 = Supplementary
1 = Replacement
Enable boiler
0 = Boiler not enabled
1 = Boiler enabled
Activation with low outside air
temperature
0 = Function not enabled
1 = Function enabled
Minimum outside air temperature
for heat pump operation (make
sure the value set is the same as
shown in the table)
Electric heater delay time
(allows the heat pump to reach
steady operation and thus avoid
activating the heater when not
needed)
Integration time to activate outlet
electric heaters
Menu Parameter Value to be
no
set
Mn03
0300
1
UOM
Mn01
010G
0
Mn03
0301
0
Mn03
0303
0
Mn03
0311
-15
°C
Mn06
0616
60
min.
Mn06
0617
600
°C*sec
Set the parameters following the sequence described in
the table
3
4
Outlet
heater
Electric heater activation delay time 0616
Integration time 0617
3°C
System water control
set point
Enabled
Actual water
temperature
System HP control
hysteresis
ON
Heater
OFF
OFF
Outside air T
0304 Outside temperature
to enable outlet heaters
ON
Compressor
OFF
Once the heater is enabled, supplementary heating is activated when the integration time set for parameter 0617 is reached and the delay time 0616 has elapsed.
The delay time is ignored when the unit is first started.
Example:
Value 0617 = 600°C*sec
Outlet temperature set point= 50°C
Actual temperature = 40°C
(50 – 40) x 60 sec = 600°Csec. ----> Electric heater ON
Low values of 0617 mean frequent activation of the heater.
Too high values of 0617 mean long delays in activating the heater
24
i-KI MTD / i-KIR MTD EN 10/2010
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
KM2 Boiler
1
A boiler can be used as a supplementary or replacement
heat source for the system.
6 7
43 44
Solution 1
System with heat pump and boiler with storage tank.
BT9
Boiler
Solution 2
System with heat pump and boiler without storage tank.
2
6 7
43 44
BT9
Boiler
Boiler control
A) REPLACEMENT: the boiler is only enabled if the outside
air temperature is less than the value of parameter 0307
and the compressor is off, figure 3.
To enable boiler activation in REPLACEMENT mode set
parameter 0306=1 and 010H = 1
Boiler operation reflects the trend in water temperature, as
shown on the graph in figure 4.
If the heat pump shuts down due to an alarm the boiler is
activated automatically regardless of the outside air temperature.
In REPLACEMENT mode the activation delay time is
ignored, and the boiler is activated immediately if necessary.
Boiler operating parameters in REPLACEMENT mode
Description
Enable electric heater
0 = Heater not enabled
1 = Heater enabled
Activation Boiler
0 = Boiler not enabled
1 = Boiler enabled
Type of boiler operation
0 = Supplementary
1 = Replacemen
Activation with low outside air
temperature
0 = Function not enabled
1 = Function enabled
Outside air temperature to enable
boiler
Integration time to activate boiler
Menu Parameter Value to be
no.
set
Mn03
0300
0
Mn03
0301
1
Mn01
010H
1
Mn03
0306
1
Mn03
0307
Mn06
0619
Example
-5°C
600
UOM
°C
°C*sec
Set the parameters following the sequence described in
the table
B) SUPPLEMENTARY: the boiler operates in supplementary heating mode, together with the compressor, to satisfy
the heating load.
Supplementary heating for low outside air temperature
The boiler is enabled only when the outside air temperature
is less than the value of parameter 0307, figure 3.
To enable the supplementary heating for outside air temperature set parameter 0306 = 1 and 010H = 0
Boiler operation reflects the trend in water temperature, as
shown on the graph in figure 4.
Boiler operating parameters in SUPPLEMENTARY mode
for outside temperature
Description
Enable electric heater
0 = Heater not enabled
1 = Heater enabled
Activation Boiler
0 = Boiler not enabled
1 = Boiler enabled
Type of boiler operation
0 = Supplementary
1 = Replacemen
Activation with low outside air
temperature
0 = Function not enabled
1 = Function enabled
Outside air temperature to enable
boiler
Minimum outside air temperature
for heat pump operation (make
sure the value set is the same as
shown in the table)
Boiler activation delay time (allows
the heat pump to reach steady
operation and thus avoid activating the boiler when not needed)
Integration time to activate boiler
Menu Parameter Value to be
no.
set
Mn03
0300
0
UOM
Mn03
0301
1
Mn01
010H
0
Mn03
0306
1
Mn03
0307
°C
Mn03
0311
Example
-5°C
-20
Mn06
0618
60
min.
Mn06
0619
600
°C*sec
°C
Set the parameters following the sequence described in
the table
EN 10/2010 i-KI MTD / i-KIR MTD
25
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
Supplementary heating always enabled
Supplementary heating by boiler is enabled for all outside
air temperatures.
To enable heating at all times set parameter 0306 = 0 and
010H = 0
Boiler operation reflects the trend in water temperature, as
shown on the graph in figure 4.
Boiler operating parameters in SUPPLEMENTARY mode
when always ENABLED
Description
Enable electric heater
0 = Heater not enabled
1 = Heater enabled
Activation Boiler
0 = Boiler not enabled
1 = Boiler enabled
Type of boiler operation
0 = Supplementary
1 = Replacement
Activation with low outside air
temperature
0 = Function not enabled
1 = Function enabled
Outside air temperature to enable
boiler
Minimum outside air temperature
for heat pump operation (make
sure the value set is the same as
shown in the table)
Boiler activation delay time (allows
the heat pump to reach steady
operation and thus avoid activating the boiler when not needed)
Integration time to activate boiler
Menu Parameter Value to be
no.
set
Mn03
0300
0
UOM
Mn03
0301
1
Mn01
010H
0
Mn03
0306
0
Mn03
0307
°C
Mn03
0311
Example
-5°C
-25
Mn06
0618
60
min.
Mn06
0619
600
°C*sec
°C
Set the parameters following the sequence described in
the table
3
4
Boiler
Boiler activation delay time 0618
Integration time 0619
3°C
System outlet temperature
set point
Enabled
Actual water
temperature
System HP control
hysteresis
ON
Boiler
OFF
OFF
Outside air T
0304 Outside temperature to
enable boiler
ON
Compressor
OFF
Once the boiler has been enabled, supplementary heating is activated when the
integration time set for parameter 0619 is reached and the delay time 0618 has
elapsed. The delay time is ignored when the unit is first started.
Example:
Value 0619 = 600°C*sec
Outlet temperature set point= 50°C
Actual temperature = 40°C
(50 – 40) x 60 sec = 600°Csec. ----> Boiler ON
Low values of 0619 mean frequent activation of the boiler.
Too high values of 0619 mean long delays in activating the boiler
26
i-KI MTD / i-KIR MTD EN 10/2010
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
KM4 DHW storage electric heater
An electric heater can be managed for heating the DHW
storage.
10 11
DHW storage electric heater control
The electric heater is activated to reach a temperature value
that the heat pump on its own is not able to reach.
N U
Example:
Domestic hot water temperature produced with heat pump
0023 = 55°C
Domestic hot water temperature produced with electric
heater 0209 = 65°C.
The electric heater works so as to increase the DHW storage temperature from 55°C to 65°C, figure 1
Description
Electric heater operating mode
0 = Heat pump only
1 = Electric heater only
2 = Heat pump + Electric heater
Menu Parameter Value to be
no.
set
Mn02
0202
2
UOM
Domestic hot water
electric heater
1
0209
0023
ON
Compressor
Domestic hot water temperature
set point with heat pump
Domestic hot water temperature
set point with heater
Mn00
0023
Mn02
0209
Example
55
Example
65
OFF
°C
°C
Legionella prevention function with electric heater
The Legionella prevention function ensures the elimination
of the Legionella bacteria that reside in domestic water storage tanks. The temperature and duration of the Legionella
prevention cycles are typically:
• 2 minutes > 70°C
• 4 minutes > 65°C
• 60 minutes > 60°C
To enable the Legionella prevention function, set 0222=1
ON
Heater
OFF
t
Description
Domestic hot water heating
0 = heat pump only
1 = electric heater only
2 = heat pump + electric heater
Legionella prevention function
with:
0 = heat pump only
1 = electric heater only
2 = heat pump + electric heater
Enable Legionella prevention
function
0 = Not enabled
1 = Enabled
Domestic hot water temperature
set point for Legionella prevention
Legionella prevention cycle day
MONDAY (0=no; 1=yes)
Legionella prevention cycle day
TUESDAY (0=no; 1=yes)
Legionella prevention cycle day
WEDNESDAY (0=no; 1=yes)
Legionella prevention cycle day
THURSDAY (0=no; 1=yes)
Legionella prevention cycle day
FRIDAY (0=no; 1=yes)
Legionella prevention cycle day
SATURDAY (0=no; 1=yes)
Legionella prevention cycle day
SUNDAY (0=no; 1=yes)
Legionella prevention cycle time
Maximum Legionella prevention
function duration
Menu Parameter Value to be
no.
set
Mn02
0202
2
UOM
Mn02
0223
1
Mn02
0222
1
Mn02
0211
Mn02
0213
Example
65°C
0
Mn02
0214
0
Mn02
0215
Example 1
Mn02
0216
0
Mn02
0218
0
Mn02
0219
0
Mn02
0220
0
Mn02
0221
02
h
Mn02
0225
20
min.
°C
Set the parameters following the sequence described in
the table
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I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
HL1 Configurable contact
This contact can be configured for the following functions:
• Alarm signal
• Secondary circuit pump
• Dehumidifier
Alarm signal
A visual or audible signal device can be activated if the unit
shuts down due to a malfunction.
Configure the contact, selecting the desired function by setting parameter 015A:
Description
Enable the contact as:
0= Alarm signal
1= Dehumidifier
3= Secondary circuit pump
Menu Parameter Value to be
no.
set
Mn01
015A
0
21 22
230V 50Hz
U N
UOM
-
Secondary circuit pump
If the system features a low-loss header, contact HL1 can
be used to activate the circulating pump on the secondary
circuit.
21 22
230V 50Hz
U N
Configure the contact, selecting the desired function by setting parameter 015A:
Description
Enable the contact as:
0= Alarm signal
1= Dehumidifier
3= Secondary circuit pump
Menu Parameter Value to be
no.
set
Mn01
015A
3
2
N
L
UOM
-
1
1 Storage tank
2 System pump HL1
Dehumidifier
A dehumidifier can be activated in radiant panel systems to
reduce humidity in cooling mode.
The contact closes and the dehumidifier is activated when
the humidity measured by the probe on the A5 room controller exceeds the value set for parameter 0172.
Configure the contact, selecting the desired function by setting parameter 015A:
Description
Enable the contact as:
0= Alarm signal
1= Dehumidifier
3= Secondary circuit pump
Menu Parameter Value to be
no.
set
Mn01
015A
1
Dehumidifier
21 22
UOM
-
SA1 Remote ON/OFF
The unit can be switched on/off from a remote control
for example a timer or room thermostat.
The remote off function stops the compressor, fan
pumps, while frost protection remains active.
- The unit can be switched on/off from contact SA1
when the unit has been switched on using the
ton on the A5 room controller
unit,
and
25 26
only
butSA1
Contact closed = Heat pump ON
Contact open = Heat pump OFF
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i-KI MTD / i-KIR MTD EN 10/2010
I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
SA2 Remote cooling/heating
Cooling/heating operating mode can be managed from a
remote control unit.
If remote cooling/heating changeover is enabled, the operating mode cannot be changed on the keypad.
27 28
Set the following parameters:
Description
Enable remote contact
0= remote contact enabled
1= remote contact disabled
(only from keypad)
Menu Parameter Value to be
no.
set
Mn01
0100
0
UOM
SA2
-
Contact closed = Cooling
Contact open = Heating
SA3 Remote system/domestic water priority
The priority of heat pump operation can be selected using a
remote contact.
Use a switch to select the following functions:
29 30
Contact closed = Domestic hot water only
Contact open = Domestic hot water + System
Set the following parameters:
Description
Enable remote contact
0= remote contact enabled
1= remote contact disabled
(selection from keypad only)
Menu Parameter Value to be
no.
set
Mn01
0100
0
SA3
UOM
-
SA5 Deactivation contact for excess power consumption
The heat pump accepts an external deactivation signal from
contact SA5 if a power consumption management system is
used to disconnect devices based on set priority, thus avoiding activation of the contactor on the power meter.
Configure the contact, selecting the desired function by setting parameter 015D:
Description
Enable the contact as:
0= Reduced electricity rate
1= Stop operation due to excess
power consumption
Menu Parameter Value to be
no.
set
Mn01
015D
1
UOM
33 34
SA5
-
Contact closed: heat pump operation not allowed.
Contact open: heat pump operation allowed.
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I A
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE
SA5 Reduced electricity rate contact
Forced refilling of the reserve storage tanks can be activated based on different electricity rates during the day.
During reduced rate periods, the heat pump can be forced
on so as to heat the domestic hot water or system storage
tank, where fitted.
Configure the contact, selecting the desired function by setting parameter 015D:
Description
Enable the contact as:
0= Reduced electricity rate
1= Stop operation due to excess
power consumption
Enable the set point as:
0= Economy
1= Comfort
Set the value of the domestic hot
water ECONOMY set point
Set the value of the domestic hot
water COMFORT set point
Menu Parameter Value to be
no.
set
Mn01
015D
0
33 34
SA5
UOM
-
Mn00
0015
0
-
Mn00
0022
°C
Mn00
0023
Example
47
Example
50
°C
Contact closed: forced operation during the reduced rate
period.
Contact open: heat pump operation at full electricity rate.
During operation at reduced electricity rate, contact closed,
the domestic hot water set point is 50°C, as shown in the
example, with the contact open it’s 47°C.
This allows operation at a higher temperature, within the
unit’s operating limits, exploiting the lower electricity cost.
F3 System flow switch
System flow switch connection, compulsory component.
39 40
F3
BT8 Domestic hot water storage temperature probe
The domestic hot water temperature inside the storage tank
is measured using probe BT8
41 42
BT8
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i-KI MTD / i-KIR MTD EN 10/2010
I A
GENERAL TECHNICAL DATA
Rated heating capacity
Total power consumption
COP EN14511
Cooling capacity
Total power consumption
EER EN14511
Heating capacity
Total power consumption
COP EN14511
Cooling capacity
Total power consumption
EER EN14511
ESEER
1
1
1
2
2
2
3
3
3
4
4
4
4
0011m
6,00
1,46
4,11
i-KI
0031m
9,55
2,38
4,02
0061m
15,70
3,83
4,10
5,30
1,74
3,05
9,00
2,90
3,10
14,70
4,55
3,23
DC inverterdriven rotary
Scroll DC
Inverter
V-ph-Hz
dB(A)
dB(A)
1
R410A
1,05
1
Ci
230-1-50
60
46
mm
mm
mm
kg
mm
mm
mm
kg
kW
kW
kW
kW
0061m
15,70
3,83
4,10
16,60
4,15
4,00
14,70
4,55
3,23
12,30
3,77
3,26
3,90
Twin Rotary
DC Inverter
DC inverterdriven rotary
Scroll DC
Inverter
Twin Rotary
DC Inverter
1
R410A
1,50
1
Ci
230-1-50
64
50
1
R410A
2,99
2
Ci
230-1-50
65
51
1
R410A
1,05
1
Ci
230-1-50
60
46
1
R410A
1,50
1
Ci
230-1-50
64
50
1
R410A
2,99
2
Ci
230-1-50
65
51
825
300
787
59
850
330
882
85
1000
330
1418
123
825
300
787
59
850
330
882
85
1000
330
1418
123
411
75
333
5,3
411
75
333
5,3
411
75
333
5,3
411
75
333
5,3
411
75
333
5,3
411
75
333
5,3
kW
kW
kg
5
6
7
i-KIR
0031m
9,55
2,37
4,02
7,02
2,18
3,22
9,00
2,90
3,10
4,92
2,01
2,45
3,26
kW
kW
Type of compressor
No. of compressors
Refrigerant
Quantity of refrigerant
No. of fans
Type of system pump
Power supply
Sound power
Sound pressure
OUTDOOR UNIT DIMENSIONS
L
P
H
Operating weight
INSIDE MODULE DIMENSIONS
L
P
H
Operating weight
0011m
5,85
1,46
4,01
4,40
1,06
4,15
5,30
1,74
3,05
4,00
1,03
3,90
4,00
Notes
1 System water temperature 30/35°C, outside air temperature 7°C DB/ 6°C WB
2 System water temperature 23/18°C, outside air temperature 35°C DB
3 System water temperature 40/45°C, outside air temperature 7°C DB/ 6°C WB
4 System water temperature 12/7°C, outside air temperature 35°C DB
Total power consumption calculated by adding compressor and fan power consumption.
5 Ci=Circulating pump
6 Sound power in accordance with ISO 9614 and Eurovent 8/1
7 Average sound pressure on reflecting surface (Q=2) at a distance of 1 metre from the outside of the unit.
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OPERATING LIMITS
COOLING
Outside air temperature (°C)
45
40
35
30
25
20
15
0
5
10
15
20
25
Water outlet temperature (°C)
Outside air temperature (°C)
HEATING
50
45
40
35
30
25
20
15
10
5
0
-5
-10
-15
-20
-25
15
25
35
45
55
65
Water outlet temperature (°C)
Min/max water temperature difference = 5/10 °C (in minimum flow conditions, 7 l/min)
MAX return temperature to heat pump = 55°C
MAX outlet temperature to heat pump for DHW production = 58°C
Water circuit pressure min/max = 1/3 bar
Maximum glycol percentage = 40%
The temperature of the fluid leaving the unit must always be within the manufacturer’s specified operating range, even during
start-up and when first putting into heating mode. To ensure this, the water circuit can be fitted with a bypass valve and/or other
solutions, such as electric heaters with temperature control inside the storage tank.
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I A
OPERATING LIMITS
PUMP CHARACTERISTICS
0011m
[kPa]
120
110
100
90
80
70
60
50
40
30
20
10
0
0031m
[kPa]
80
70
60
50
40
30
20
10
0
0061m
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [L/min]
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 [L/min]
[kPA]
130
120
110
100
90
80
70
60
50
40
30
20
10
0
0
5
10
15
20
25
30
35
40
45
50 [L/min]
The pressure head values refer to the values available at the water connections.
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A
CHECKING AND STARTING UP THE UNIT
CHECKS BEFORE STARTING THE UNIT
• the vibration damping feet are fitted
• inlet filters are fitted on the system
• suitably-sized expansion vessel and safety valve installed
on the DHW circuit
• an expansion vessel is installed if the expansion vessel on
the unit is undersized
• make sure vibration damper joints are installed on water
connections
• a low-loss header is installed if the water content is insufficient
• make sure the position of the outside air probe corresponds to the instructions shown in the manual
• make sure the position of the room control unit corresponds to the instructions shown in the manual
• make sure that the electrical power available is adequate
for the unit installed
• make sure the non-return valve is installed on the DHW
circuit
PREPARING FOR FIRST START UP
The unit must be started up for the first time by the Technical Service. Before starting up the unit, make sure that:
• the unit has been properly installed as described in this
manual
• All safety conditions have been respected;;
• The unit is adequately fixed to the surface it rests on;
• Clearances have been respected;
• Water connections have been carried out as indicated in
the instruction manual;
• All water connections are tight.
• Make sure the water circuit has been washed and drained.
• The water circuit is filled and vented.
• Make sure there is no air in the system. If necessary vent
the system using the vent valve.
If venting after operation in heat pump mode, be careful as
the water may be hot;
• The water valves are open;
• Electrical connections have been carried out correctly;
• Voltage is within a tolerance of 10% of the rated voltage
for the unit;
• Make sure that unbalance between phases is less than
2%, for three-phase units.
• The unit is correctly earthed;
• All electrical connections are tight.
• make sure that the outside air and water temperature are
within the unit operating limits shown in this manual.
Before starting up, power up the unit for at least two hours
by switching QF1 and QS1 to ON (see the wiring diagram)
to allow the oil in the compressor sump to heat up.
STARTING UP FOR THE FIRST TIME
Before starting the unit:
• Make sure the switch QF1 is in the OFF position, Fig. 1.
• Make sure the contact of the on/off device SA1 (see the
wiring diagram) is open (if featured).
• Make sure the “A5” room controller is off.
1
ON
OFF
• Position the main unit switch QS1 in the ON position, Fig.
2.
2
0 OFF
ON
• Move switch QF1 (outside the unit) to “ON”, Fig. 3.
3
ON
OFF
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i-KI MTD / i-KIR MTD EN 10/2010
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CHECKING AND STARTING UP THE UNIT
• Once having powered up the heat pump, the display on
the room control unit shows this message (1):
1
• Followed by (2):
2
• Wait a few minutes, the unit is ready to operate when the
display shows (3):
3
Before starting up, power up the unit for at least two
hours, with the compressor off, so as to allow the oil
in the compressor sump to heat up.
When commissioning the heat pump, the user must configure the type of system.
See the chapter “System configuration”, check the application diagrams that the control unit is able to manage.
• Set the current date and time on the A5 room controller
• Configure the type of system and the number of A5 room
controllers. See the chapter "System configuration".
• Switch on the unit by pressing button 3
• Select the required operating mode by pressing button 5
• Select the required room temperature by turning knob 4
For further information on the operation and functions of the
room controller, see "Operation and functions of the room
controller".
A5 room controller
5
mode
3
4
EN 10/2010 i-KI MTD / i-KIR MTD
35
DESCRIPTION OR ROOM CONTROLLER BUTTONS AND DISPLAY
BUTTONS
5
mode
1
NO.
1
2
2
3
4
6
3
7
DISPLAY
5
6
7
4
A
Description
Temperature and humidity probe
Domestic hot water (DHW) production button
ON/OFF button
ESC button in parameter programming mode
Knob
- Turning: scroll room temperature values,
parameters and menus
- Pressing: Confirm settings
Select operating mode button
Set time bands button
Backlit display
1
3
2
4
5
10
6
9
7
8
N°
Description
1
Operating mode
Symbol
Function
Heating
Cooling
automatic mode changeover based on outside air temperature
Domestic hot water production enabled
2
Main field
Room temperature/humidity, room set point, parameter value display
3
Temperature unit of measure
4
Set point
5
Relative humidity
6
Time band
7
Day of the week
On indicates room set point programming
Indicates the type of active time band
error message
system pump active
- flashing: compressor timer, delay
8
Actuator operating
- fixed: compressor active
Defrost active
Fan active
Boiler or electric heater active
Frost protection active
9
Secondary field
Time, menu, parameter number display
10
Active time band
On indicates active time band
* Any delays in the "compressor" symbol switching off are due to the PI calculation of the compensation curve.
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i-KI MTD / i-KIR MTD EN 10/2010
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OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
Meaning of the symbols
Symbol
Meaning
Press and release
x3 sec.
Hold for 3 seconds
Turn the knob
Display
During normal operation of the unit, the display shows the
following information:
1
2
3
4
5
operating mode selected
domestic hot water production enabled
room temperature
hour and minutes
day
1
2
3
4
5
Additional information displayed
During operation of the unit, pressing the knob displays the information described below.
Press the knob
Room temperature set point
Press the knob
Humidity set point
Press the knob
Outside air temperature
Press the knob
Domestic hot water set point
Press the knob
Room humidity
Press the knob
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A
OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
Setting the time and date
1
2
3
x3 sec.
Press the
button for 3 seconds
4
Press the knob
5
• Press the knob to confirm
7
• The minutes flash
• Turn the knob to select the minutes value
8
• The day flashes
• Turn the knob to select the day**
• Press the knob to confirm
• The hours flash
• Turn the knob to select the hour value
6
• Press the knob to confirm
9
• Press the
button to exit.
10
• Main display
** Mon = Lunedi, Tue = Martedi, Wed = Mercoledi, Thu = Giovedi, Fri = Venerdi, Sat = Sabato, Sun = Domenica
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i-KI MTD / i-KIR MTD EN 10/2010
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OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
Switching ON
The
button enables operation of the pump or the zone valve controlled by the room controller, the heat pump is activated by
selecting the operating mode using the
button, as shown below.
1
2
3
x3 sec.
ZONE OFF
Press the
ZONE ON**
button for 3 seconds
** The heat pump is not yet operating, the mode has to be selected: heating, cooling, auto or domestic hot water production.
Selecting the operating mode
None
No operating mode selected.
Heat in OFF.
Automatic mode changeover
Cooling
• Press the mode button
• Press the mode button
• AUTOMATIC** mode changeover • COOLING mode selected
selected
Heating
• Press the mode button
• HEATING mode selected
** AUTO automatic mode changeover based on the outside air temperature
Selecting the room temperature set point
1
2
• Turn the knob
• The room temperature set point
is displayed
3
4
• Turn the knob to change the room • The display shows the room temtemperature set point
perature
• Wait a few seconds for confirmation
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A
OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
Domestic hot water production
1
2
Domestic hot water production not enabled
Press the
3
• Domestic hot water production enabled
• The
symbol is displayed
.
Selecting the domestic hot water set point
The domestic hot water temperature is measured by the probe installed inside the DHW storage tank.
1
2
• Press thei
seconds
4
x3 sec.
+
buttons together for 3
5
• Press the knob to confirm
7
• Press the knob to confirm
8
• Press the knob
• Turn the knob to select the domestic hot
water set point
3
• Turn the knob and select the value of parameter 012
6
• Turn the knob and select parameter 0023
9
• Press the knob to confirm
➔
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A
OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
10
11
• Press the
button twice until reaching the
main display.
• Main display
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A
OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
Programming the time bands
The room controller can customise on/off times for each zone in the system, based on six time bands.
The six time bands are identified by the following symbols, selected by turning the knob:
Time band 1
Time band 2
Time band 3
Time band 4
Time band 5
Time band 6
The time bands on systems with multiple zones, each of which is managed by its own room controller (maximum 6), must be
programmed on each room controller.
For installations with heap pump connected directly to the system, without storage tanks and secondary pumps, parameter
011D must be set to 0. This means that heat pump operation will be managed based on the time bands.
1
2
3
x5 sec.
• Press the
• Turn the knob
button for 5 seconds
• Press to confirm
The time bands can be programmed by selecting the days in preset groups or for each individual day.
4
5
A
6
A
B
GROUP OF 7 DAYS
A Turn the knob
B Press the knob to confirm
8
A
B
GROUP OF 5 DAYS
A Turn the knob
B Press the knob to confirm
9
A
42
Time band 1 start hours
A Turn the knob
B Press the knob to confirm the
hour value
i-KI MTD / i-KIR MTD EN 10/2010
A
B
B
GROUP OF 2 DAYS
A Turn the knob
B Press the knob to confirm
INDIVIDUAL DAY
A Turn the knob
B Press the knob to confirm
10
11
A
B
Time band 1
• Press the knob to confirm
7
A
B
Time band 1 start minutes
A Turn the knob
B Press the knob to confirm the
minutes value
B
Time band 1 room temp. set point
A Turn the knob
B Press the knob to confirm
8 + 9 .... 10 .... 11
12
13
14
• Press the
button twice until
reaching the main display.
• Main display
A
B
Time band 2
• Press the knob to confirm
Continue as described from
step 8 to step 11 to set the
hours, minutes and room temperature set point for the other
time bands
Press the
Once the time bands have been
set
A Turn the knob and select ESC
B Press to confirm
button to exit programming mode
Time band program example
Below is an example of a time band program with two temperature levels, Comfort 20°C, Economy 18°C, and OFF.
Time
band 1
20°C
Time
band 2
Time
band 3
Time
band 4
Time
band 5
16
20
Time
band 6
18°C
OFF
0
4
8
12
24
Activating time bands
1
• Press the
2
button.
• The
symbol is displayed
• Time band ACTIVE
Deactivating time bands
1
• Press the
2
button.
• The
symbol is no longer displayed
• Time band DEACTIVATED
Once the time bands have been deactivated check that the room set point is
at the required value, otherwise turn the
knob to select the desired temperature.
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A
OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
Switching OFF
The
button disables operation of the pump or the zone valve controlled by the room controller, the heat pump is deactivated
using the
button, as shown in " Selecting the operating mode".
1
2
3
x3 sec.
Unit ON - ZONE ON
• Press the
Unit OFF - ZONE OFF
button for 3 seconds
ACCESSING THE PROGRAMMING LEVELS
The room controller has a menu structure, divided into levels so as to allow access only to authorised users, as shown below:
Level
Password
Menu description
User
012
Room unit
Mnu00
022
Zone room terminal address setting
System configuration
DHW
Supplem. sources
Cascade/Forced fan
Primary and DHW exchanger
input / output
Addr
Mnu01
Mnu02
Mnu03
Mnu04
Mnu06
Mnu09
Compressor
Source heat exchanger
Defrost
Alarm log
Serial protocol
Mnu05
Mnu07
Mnu08
Mnu11
Mnu12
Installer
Authorised technical service
034
Contact Manufacturer
Menu code
Procedure for accessing the menu
1
2
• Main display
• Press the
onds
x3 sec.
+
3
buttons together for 3 sec- • Turn the knob and select the password (as
shown in the table)
➔
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A
OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
4
5
6
A
B
• Press the knob to confirm
7
A Turn the knob to select the menu
B Press the knob to confirm
• Turn the knob and select the parameter to
be set
8
9
• Press the knob
• The parameter value flashes
• Turn the knob to change the parameter value
10
11
• Press the
button twice until reaching the
main display
• Main display
Press the
• Press the knob to confirm
button to exit programming mode
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A
CONTROL AND OPERATING CHARACTERISTICS
Temperature control
The heating or cooling circuit water outlet temperature is
calculated by the controller and depends on the following
factors:
A) system outlet set point compensation in heating or cooling (see paragraph)
B) room temperature influence (see paragraph)
C) minimum and maximum outlet temperature limit (see
paragraph)
D) room temperature set point
A) System water outlet temperature set point compensation
The water outlet temperature set point in heating or cooling
is calculated based on the outside temperature trend according to settable curves.
Example: Selecting heating curve 1,4 with an outside air
temperature of -5°C gives a water outlet temperature of
+55°C.
2,2
2
1,8
1,6
1,4
Outlet set point °C
Water outlet set point compensation diagram in HEATING
The compensation curve in heating mode can be modified
to allow correct heat pump operation depending on the heating system used (radiant panels, radiators, fan coils).
1,2
1
0,8
0,6
0,4
0,2
A heating curve that is too high gives an excessive outlet
temperature, a curve that is too low may mean the desired
room temperature is not reached.
-5
-25
Outside air temp. °C
The curve can be set separately for each zone, depending
on the type of room terminal.
The following compensation curves are recommended:
Type of terminal
Radiant panels
Fan coils
Radiators
Compensation curve number
0.25÷0.7
0,9÷1,1
1,2÷1,5
The compensation curves in HEATING are divided into:
• SYSTEM curve determines the general water outlet temperature to the terminal units.
• ZONE curve determines the water outlet temperature in
the mixed circuit.
For systems configured with mixed zones, the SYSTEM
curve and ZONE curve must be selected.
The system and zone curve work in cascading, the mixed
zone curve may therefore not request a higher value than
the one supplied by the system curve.
46
i-KI MTD / i-KIR MTD EN 10/2010
Description
Enable SYSTEM compensation
curve
0= Disabled
1= Enabled
SYSTEM compensation curve
number
Menu Parameter
no.
Mn01
0152
Default
0
Mn01
0159
1
Enable compensation curve zone Mn01
LT1
0= Disabled
1= Enabled
Compensation curve number zone LT1 Mn01
0167
0
0174
0,7
Enable compensation curve zone Mn01
LT2
0= Disabled
1= Enabled
Compensation curve number zone LT2 Mn01
0182
0
0189
0,7
Enable compensation curve zone Mn01
LT3
0= Disabled
1= Enabled
Compensation curve number zone LT3 Mn01
015E
0
012A
0,7
UOM
A
CONTROL AND OPERATING CHARACTERISTICS
Example referred to compensation curve 1.0
The compensation curve determines the water outlet temperature in heating; this may then be corrected based on the difference between the desired room set point and the actual
room temperature.
The correction made to the outlet temperature depends on
the “Room Authority” coefficient.
The higher the value of the Room Authority the higher the
correction to the system outlet temperature, and vice-versa.
Water outlet temperature deviation (°C)
B) Room temperature influence in HEATING
60
50
40
30
20
10
0
-10
10 %
25 %
-20
50 %
-30
75 %
99 %
-40
-2.5
2
-1,5
-1
-0,5
0
0,5
1
1,5
2
DT (Room temperature °C - Room set point °C)
This allows the outlet temperature to adapt quickly to
changes in the conditions inside the room.
Description
The function can only be ENABLED if the A5 room controller
is positioned in the room and used to measure the reference
temperature.
Enable room temperature influence on SYSTEM
0= Disabled
1= Enabled
SYSTEM Room Authority
Set authority values for the SYSTEM equal to or greater than
those for zones LT1, LT2, LT3.
Default
UOM
0
Mn01
0164
30
Enable Room temperature influence on LT1
0= Disabled
1= Enabled
LT1 Room Authority
Mn01
0178
0
Mn01
0179
30
Enable Room temperature influence on LT2
0= Disabled
1= Enabled
LT2 Room Authority
Mn01
0193
0
Mn01
0194
30
Enable Room temperature influence on LT3
0= Disabled
1= Enabled
LT3 Room Authority
Mn01
012D
0
Mn01
012E
30
C) System outlet temperature limits in HEATING
%
%
%
%
Outlet set point with room temp. 20°C
100
90
80
Outlet temp. (°C)
These define the temperature limits (minimum and maximum) that can be requested from the circuit and never
exceeded.
In the figure the minimum limit is 30°C and the maximum is
40°.
Between 30 and 40°C the outlet temperature will be able to
vary based on the trend in outside temperature.
Menu Parameter
no.
Mn01
0163
70
60
50
40
30
20
For systems configured with mixed zones, the limits for the
SYSTEM curve and ZONE curve must be selected.
10
20
15
10
5
0
-5
-10
-15
-20
-25
-30
Outside temp. (°C)
Menu Parameter
no
Mn01
0165
Default
UOM
30
°C
0166
48
°C
MINIMUM outlet set point limit for Mn01
compensation curve in zone LT1
MAXIMUM outlet set point limit for Mn01
compensation curve in zone LT1
0180
23
°C
0181
45
°C
MINIMUM outlet set point limit for Mn01
compensation curve in zone LT2
MAXIMUM outlet set point limit for Mn01
compensation curve in zone LT2
0195
23
°C
0196
45
°C
MINIMUM outlet set point limit for Mn01
compensation curve in zone LT3
MAXIMUM outlet set point limit for Mn01
compensation curve in zone LT3
012F
23
°C
012G
45
°C
Description
MINIMUM outlet set point limit for
SYSTEM curve
MAXIMUM outlet set point limit for Mn01
SYSTEM curve
EN 10/2010 i-KI MTD / i-KIR MTD
47
A
CONTROL AND OPERATING CHARACTERISTIC
Water outlet set point compensation diagram in COOLING
The compensation curve in cooling mode can be modified to
allow correct heat pump operation depending on the cooling
system used (radiant panels, fan coils).
Points T1 and T2 correspond to two outside temperature
values that respectively identify the maximum and minimum
system outlet temperature.
Outlet
set point
Tm1
Tm2
Te1
Te2
Outside temp.
The compensation curves in COOLING are divided into:
• SYSTEM curve determines the general water outlet temperature to the terminal units.
• ZONE curve determines the water outlet temperature in
the mixed circuit.
For systems configured with mixed zones, the SYSTEM
curve and ZONE curve must be selected.
The system and zone curve work in cascading, the mixed
zone curve may therefore not request a higher value than
the one supplied by the system curve.
Maximum room humidity compensation
The water outlet temperature set point, calculated based on
the compensation curve, can be compensated according to
the maximum relative humidity in the room.
The water outlet temperature value can increase so as to
avoid possible formation of condensate in the radiant cooling systems (underfloor, ceiling, wall, etc.).
If the relative humidity measured by the A5 room unit A5
exceeds the value set for parameter 012P, 0172, 0187, the
water outlet temperature set point increases until reaching
the maximum outlet temperature.
The maximum outlet temperature is the set point calculated
according to the compensation curve in cooling mode plus
the value set for parameter 0158, 0173, 0188.
Outlet
temperature
hysteresis (°C)
Value:
parameter 0158
parameter 0173
parameter 0188
Value parameter 0157
Value parameter 0172
Value parameter 0187
100% UR%
Room
humidity (RH%)
Description
Enable SYSTEM compensation curve
0= Disabled
1= Enabled
Maximum outlet temperature set point limit
in cooling mode (Tm1)
Minimum outside temperature corresponding
to max. outlet temperature (Te1)
Minimum outlet temperature set point limit in
cooling mode (Tm2)
Maximum outside temperature corresponding to min. outlet temperature (Te2)
Enable compensation curve zone LT1
0= Disabled
1= Enabled
Maximum outlet temperature set point limit
in cooling mode (Tm1)
Minimum outside temperature corresponding to max. outlet temperature (Te1)
Minimum outlet temperature set point limit in
cooling mode (Tm2)
Maximum outside temperature corresponding to min. outlet temperature (Te2)
Enable compensation curve zone LT2
0= Disabled
1= Enabled
Maximum outlet temperature set point limit
in cooling mode (Tm1)
Minimum outside temperature corresponding
to max. outlet temperature (Te1)
Minimum outlet temperature set point limit in
cooling mode (Tm2)
Maximum outside temperature corresponding to min. outlet temperature (Te2)
Enable compensation curve zone LT3
0= Disabled
1= Enabled
Maximum outlet temperature set point limit
in cooling mode (Tm1)
Minimum outside temperature corresponding
to max. outlet temperature (Te1)
Minimum outlet temperature set point limit in
cooling mode (Tm2)
Maximum outside temperature corresponding to min. outlet temperature (Te2)
Menù Parameter
no.
Mn01
0154
Default
UOM
0
Mn01
0128
20
°C
Mn01
0129
23
°C
Mn01
0130
18
°C
Mn01
0131
36
°C
Mn01
0169
0
Mn01
0132
20
°C
Mn01
0133
23
°C
Mn01
0134
18
°C
Mn01
0135
36
°C
Mn01
0184
0
Mn01
0136
20
°C
Mn01
0137
23
°C
Mn01
0138
18
°C
Mn01
0139
36
°C
Mn01
011T
0
Mn01
012H
20
°C
Mn01
012J
23
°C
Mn01
012L
18
°C
Mn01
012M
36
°C
Default
Mn01
Parameter
no.
0156 *
Mn01
0157 *
70
%
Mn01
0158 *
15
°C
Mn01
0171
0
Mn01
0172
70
%
Mn01
0173
15
°C
Mn01
0186
0
Mn01
0187
70
%
Mn01
0188
15
°C
Mn01
012N
0
Mn01
012P
70
%
Mn01
012R
15
°C
Description
Menu
Enable compensation for room
humidity, SYSTEM
0= Disabled 1= Enabled
Room relative humidity value to start
increasing water outlet temperature
set point SYSTEM
Maximum outlet temperature hysteresis corresponding to 100% relative humidity
Enable compensation for room
humidity, ZONE LT1
0= Disabled 1= Enabled
Room relative humidity value to start
increasing water outlet temperature
set point ZONE LT1
Maximum outlet temperature hysteresis corresponding to 100% relative humidity
Enable compensation for room
humidity, ZONE LT2
0= Disabled 1= Enabled
Room relative humidity value to start
increasing water outlet temperature
set point ZONE LT2
Maximum outlet temperature hysteresis corresponding to 100% relative humidity
Enable compensation for room
humidity, ZONE LT3
0= Disabled 1= Enabled
Room relative humidity value to start
increasing water outlet temperature
set point ZONE LT2
Maximum outlet temperature hysteresis corresponding to 100% relative humidity
UOM
0
* Parameters to be set only when the heat pump is connected
directly to the system, without storage tank on the outlet.
48
i-KI MTD / i-KIR MTD EN 10/2010
A
CONTROL AND OPERATING CHARACTERISTICS
Automatic mode changeover based on outside
temperature
In
mode, the operating mode (heating / cooling)
changes automatically, avoiding the need for the user to
change the mode manually.
Mode changeover is based on the diagram shown in the figure.
The centre zone A corresponds to an area of inactivity, as
the outside climate conditions mean neither heating nor
cooling is required.
Heating
ON
Cooling
A
OFF
0108=26°C
0106= 16°C
0106+0107=18°C
Description
Automatic mode changeover set
point in HEATING
Automatic mode changeover differential in HEATING
Automatic mode changeover set
point in COOLING
Automatic mode changeover differential in COOLING
Outside temp.
0108-0109=24°C
Menu Parameter
no.
Mn01
0106
Default
UOM
16
°C
Mn01
0107
2
°C
Mn01
0108
24
°C
Mn01
0109
2
°C
System pump operation
When reaching the system water set point, the compressor
stops and the system pump is activated periodically, so as
to minimise energy consumption.
Pump operating time can be selected using parameter
0147, while the interval between one sniffing cycle and the
next is set using parameter 0148.
Intermittent activation of system pump operation can be
selected using parameter 0143 (0= system pump always on
to, 1=system pump activated at intervals).
In systems with fan coils, the time between one sniffing
cycle and the next should be reduced in order to avoid cooling excessive of the water, and if the system water content
is equal to the minimum value shown in the paragraph on
"water connections", parameter 0143 should be set to 0.
EN 10/2010 i-KI MTD / i-KIR MTD
49
U I A
CONTROL AND OPERATING CHARACTERISTICS
Heat pump operation with fixed set point
Description
Outlet water set point compensation using the compensation curves can be disabled.
To enable fixed set point operation, set parameter 0152=0
and 0154=0
The heat pump will operate based on the fixed outlet set
point defined by parameters 0153 (Heating) and 0155 (cooling).
Enable outlet set point in
HEATING
0= Fixed set point in heating
ENABLED
1= Fixed set point in heating
DISABLED
Fixed water outlet temperature set Mn01
point in HEATING
Menu Parameter
no.
Mn01
0152
Mn01
Enable outlet set point in
COOLING
0= Fixed set point in cooling
ENABLED
1= Fixed set point in cooling
DISABLED
Fixed water outlet temperature set Mn01
point in COOLING
Default
UOM
0
-
0153
57
°C
0154
0
-
0155
8
°C
FROST PROTECTION
Frost protection based on system water temperature
The frost protection function is active even if the controller is
in standby. To prevent the water freezing and damaging the
plate heat exchanger, the microprocessor shuts down the
compressor and activates the system heat exchanger
heater if the temperature measured by the heat exchanger
outlet temperature probe is than +4°C. The frost prevention
temperature set point can only be modified by an authorised
service centre, and only after verifying that the water circuit
contains antifreeze. Tripping of this alarm shuts down the
compressor but not the pump, which remains active.
To reset normal operation, the water outlet temperature
must rise to more than: +7°C on the system side. Reset is
automatic.
Frost protection based on outside air temperature
Frost protection on the heating and domestic hot water circuits based on outside air temperature is always active,
even when the heat pump is off.
The system and domestic hot water pumps are activated
when the outside air temperature falls below the value set
for parameter 0141.
Description
Outside temperature to enable
frost protection
Menu Parameter
no.
Mn01
0141
Default
UOM
4
°C
System and DHW
circuit water pump
1°C
ON
OFF
Outside air T
0141 Outside air temperature to enable frost protection
50
i-KI MTD / i-KIR MTD EN 10/2010
U I A
SYSTEM CONFIGURATION
The heat pump controller can select configurations for 15 different types of system by setting parameter 0101.
The following table describes the system configurations available.
Menu
Parameter
0101
Mixed zone 1
Mixed zone 2
ZONA "1"
Mixed zone 3
ZONA "1"
5
High temperature High temperature High temperature DHW
N-EM1
zone 1 (fan coils / zone 2 (fan coils / zone 3 (fan coils / recircu- expansion
radiators)
radiators)
radiators)
lation
module
ZONA "1"
5
ZONA "1"
5
ZONA "1"
5
ZONA "1"
5
5
n°
T
T
M
T
T
M
T
T
M
T
T
T
T
T
T
Mn01
0
X
0
Mn01
1
Mn01
2
X
Mn01
3
X
X
Mn01
4
X
X
Mn01
5
X
X
X
Mn01
6
X
X
X
Mn01
7
X
X
X
X
Mn01
8
X
X
X
X
Mn01
9
X
X
Mn01
10
X
X
Mn01
11
X
X
X
Mn01
12
X
X
X
X
Mn01
13
X
X
X
X
Mn01
14
X
X
X
X
1
1
1
X
2
2
X
2
2
X
2
2
X
X
X
2
X
2
X
3
X
3
X
3
Configuration 0 does NOT require additional expansion modules
Configurations from 1 to 3 require 1 additional N-EM1 expansion module
Configurations from 4 to 11 require 2 additional N-EM1 expansion modules
Configurations 12, 13 and 14 require 3 additional N-EM1 expansion modules
The water connection and wiring diagrams for configurations from 1 to 14 are shown on the instruction sheet enclosed with the
N-EM1 expansion module.
The parameters required for correct system operation can be set on the A5 room controller supplied with the heat pump.
The next few pages are divided into the following sections:
Section 1 WATER CIRCUIT DIAGRAM
Section 2 WIRING DIAGRAM
Section 3 PARAMETER CONFIGURATION
EN 10/2010 i-KI MTD / i-KIR MTD
51
52
Water circuit diagram (not a working drawing)
i-KI MTD / i-KIR MTD EN 10/2010
2
OUTSIDE
3
T
INDICATES ACCESSORIES
ELECTRICAL CONNECTIONS
DOMESTIC COLD WATER
DOMESTIC HOT WATER
HEAT PUMP RETURN
HEAT PUMP OUTLET
SAFETY VALVE WITH
PIPED DISCHARGE
10
T
T
F
INSIDE
4
N.C.
MEMBRANE EXPANSION
VESSEL
DRAIN VALVE
“Y” FILTER
SHUT-OFF VALVE
THERMOSTATIC MIXER
VENT VALVE
MT
CALIBRATING VALVE
VIBRATION DAMPER JOINT
FLOW SWITCH
THERMOMETER
N.B.: Typical water circuit diagram.
1
F
T
CHECK VALVE
KEY TO THE SYMBOLS
PRESSURE GAUGE
APPLIANCES
REMOVABLE METAL MESH FILTER (1"1/4, 1"1/2 OR 2")
1”1/4 THREE-WAY SELECTOR VALVE FOR DHW PRODUCTION
3
4
5
INSIDE MODULE, MODEL i-EM / i-EMR
10
5
D
6
(*) INSTALL A STORAGE TANK ON THE HEAT PUMP RETURN
IF THE SYSTEM WATER CONTENT IS LESS THAN THE VALUE DESCRIBED
IN THE TECHNICAL BULLETIN.
ROOM UNIT (SUPPLIED AS STANDARD WITH THE HEAT PUMP)
9
ELECTRIC HEATER KIT, 1-2-3 kW
STORAGE TANK FOR HEATED AND CHILLED WATER,
MODEL BT35, BT100 OR BT200 (*)
8
7
DHW STORAGE TANK, MODEL HWC 300 OR HWC 500
OUTSIDE AIR TEMPERATURE PROBE
(SUPPLIED AS STANDARD WITH THE HEAT PUMP)
6
RUBBER VIBRATION DAMPER KIT FOR FLOOR-STANDING
INSTALLATION
MEDIUM TEMPERATURE REVERSE-CYCLE UNIT, MODEL i-KI / i-KIR
2
1
T
MT
7
ACS
8
AUTOMATIC FILL
ASSEMBLY
T
T
SELF-CLEANING
FILTER
i-KI_i-KIR_0000.0
CONFIGURATION "0"
ZONE "1"
FROM WATER
MAINS
REV_01 26/01/2011
LOW-LOSS
HEADER
9
SYSTEM CONFIGURATION
U I A
Heat pump connection to the system without low-loss header. Make sure the useful pressure head of the circulating
pump on the unit is sufficient for the pressure drop in the system. If the minimum system content does not reach values shown in this manual, install an additional storage tank on the heat pump return pipe. No system configurations
are required.
For installations with heap pump connected directly to the system, without storage tanks and secondary pumps, parameter
011D must be set to 0. This means that heat pump operation will be managed based on the time bands.
Water circuit diagram
U I A
SYSTEM CONFIGURATION
Parameter configuration
Menu
Parameter
no.
Default
Mn01
0152
0
-
Mn01
0159
1
-
Mn01
0163
0
-
SYSTEM Room Authority
Mn01
0164
30
%
MINIMUM return set point limit for SYSTEM curve
Mn01
0165
30
°C
MAXIMUM return set point limit for SYSTEM curve
Mn01
0166
48
°C
Mn01
0154
0
-
Mn01
0128
20
°C
Mn01
0129
23
°C
Mn01
0130
18
°C
Mn01
0131
36
°C
Description
Write
set value
UOM
SYSTEM compensation curves in heating mode
Enable SYSTEM compensation curve
0= Disabled
1= Enabled
SYSTEM compensation curve number
Enable room temperature influence on SYSTEM
0= Disabled
1= Enabled
SYSTEM compensation curves in cooling mode
Enable SYSTEM compensation curve
0= Disabled
1= Enabled
Maximum outlet temperature set point limit in cooling mode (Tm1)
Minimum outside temperature corresponding to max. outlet
temperature (Te1)
Minimum outlet temperature set point limit in cooling mode (Tm2)
Maximum outside temperature corresponding to min. outlet
temperature (Te2)
EN 10/2010 i-KI MTD / i-KIR MTD
53
54
Water circuit diagram (not a working drawing)
i-KI MTD / i-KIR MTD EN 10/2010
2
OUTSIDE
3
T
INDICATES ACCESSORIES
ELECTRICAL CONNECTIONS
10
T
T
F
INSIDE
4
N.C.
MEMBRANE EXPANSION
VESSEL
HOT WATER RECIRCULATION
DOMESTIC COLD WATER
DOMESTIC HOT WATER
HEAT PUMP RETURN
HEAT PUMP OUTLET
SAFETY VALVE WITH
PIPED DISCHARGE
“Y” FILTER
DRAIN VALVE
SHUT-OFF VALVE
THERMOSTATIC MIXER
CALIBRATING VALVE
VENT VALVE
MT
VIBRATION DAMPER JOINT
FLOW SWITCH
THERMOMETER
N.B.: Typical water circuit diagram.
1
F
T
CHECK VALVE
KEY TO THE SYMBOLS
PRESSURE GAUGE
1”1/4 THREE-WAY SELECTOR VALVE FOR DHW PRODUCTION
5
D
ROOM UNIT (SUPPLIED AS STANDARD WITH THE HEAT PUMP)
INSIDE MODULE, MODEL i-EM / i-EMR
9
10
5
STORAGE TANK FOR HEATED AND CHILLED WATER,
MODEL BT35, BT100 OR BT200 (*)
ELECTRIC HEATER KIT, 1-2-3 kW
8
7
6
REMOVABLE METAL MESH FILTER (1"1/4, 1"1/2 OR 2")
3
4
DHW STORAGE TANK, MODEL HWC 300 OR HWC 500
OUTSIDE AIR TEMPERATURE PROBE
(SUPPLIED AS STANDARD WITH THE HEAT PUMP)
6
RUBBER VIBRATION DAMPER KIT FOR FLOOR-STANDING
INSTALLATION
2
APPLIANCES
MEDIUM TEMPERATURE REVERSE-CYCLE UNIT, MODEL i-KI / i-KIR
1
T
MT
7
ACS
8
AUTOMATIC FILL
ASSEMBLY
T
T
SELF-CLEANING
FILTER
i-KI_i-KIR_0000.1
CONFIGURATION "0"
ZONE "1"
FROM WATER
MAINS
REV_01 26/01/2011
LOW-LOSS
HEADER
9
SYSTEM CONFIGURATION
U I A
System number 0
Water circuit diagram
1
3
T
OUTSIDE
Black
Blue
OUTSIDE AIR PROBE
TERMINAL BLOCK
10
INSIDE
Brown
5
10 11
1
41 42
D
A5
51 52 53 54 55
Ausiliary
contact
230V
50 Hz
21 22
L
9 12 13
2
45 46
TxRx+
HL1
Yellow/Green
KM4
SELECTOR VALVE
TERMINAL BLOCK
TxRx-
BT8
Red
YV5
Blue
BT11
INSIDE MODULE INSTALLER TERMINAL BLOCK
(CONTACTS USED)
Brown
GND
Green
GND
24
VAC
Black
6
7
230V
50 Hz
N
1
2
T1 T2
N 11 21 31
ELECTRIC HEATER
TERMINAL BLOCK
U
ELECTRIC HEATER PANEL
TERMINAL BLOCK
8
24V
AC
L
N
APPLIANCES
ZONE "1"
DHW STORAGE TANK, MODEL HWC 300 OR HWC 500
EN 10/2010 i-KI MTD / i-KIR MTD
i-KI_i-KIR_0000.1
CONFIGURATION "0"
INSIDE MODULE, MODEL i-EM / i-EMR
REV_01 26/01/2011
ROOM UNIT (SUPPLIED AS STANDARD WITH THE HEAT PUMP)
9
10
STORAGE TANK FOR HEATED AND CHILLED WATER,
MODEL BT35, BT100 OR BT200 (*)
8
ELECTRIC HEATER KIT, 1-2-3 kW
1”1/4 THREE-WAY SELECTOR VALVE FOR DHW PRODUCTION
5
6
7
OUTSIDE AIR TEMPERATURE PROBE
(SUPPLIED AS STANDARD WITH THE HEAT PUMP)
MEDIUM TEMPERATURE REVERSE-CYCLE UNIT, MODEL i-KI /i-KIR
230V
50 Hz
9
3
1
PUMP TERMINAL BLOCK
GNDTxRx- TxRx+ GND
ROOM CONTROLLER
TERMINAL BLOCK
SYSTEM CONFIGURATION
U I A
System number 0
Wiring diagram
55
U I A
SYSTEM CONFIGURATION
System number 0
Parameter configuration
Description
Menu
Parameter
no.
Default
Write
set value
UOM
System type (table 1)
Mn01
0101
0
0*
-
Mn01
0152
0
-
Mn01
0159
1
-
Mn01
0163
0
-
SYSTEM Room Authority
Mn01
0164
30
%
MINIMUM return set point limit for SYSTEM curve
Mn01
0165
30
°C
MAXIMUM return set point limit for SYSTEM curve
Mn01
0166
48
°C
Mn01
0154
0
-
Mn01
0128
20
°C
Mn01
0129
23
°C
Mn01
0130
18
°C
Mn01
0131
36
°C
Mn01
015A
0
SYSTEM compensation curves in heating mode
Enable SYSTEM compensation curve
0= Disabled
1= Enabled
SYSTEM compensation curve number
Enable room temperature influence on SYSTEM
0= Disabled
1= Enabled
SYSTEM compensation curves in cooling mode
Enable SYSTEM compensation curve
0= Disabled
1= Enabled
Maximum outlet temperature set point limit in cooling mode (Tm1)
Minimum outside temperature corresponding to max. outlet
temperature (Te1)
Minimum outlet temperature set point limit in cooling mode (Tm2)
Maximum outside temperature corresponding to min. outlet
temperature (Te2)
Contact HL1 configuration, secondary circuit pump
Enable contact HL1 HIGH TEMPERATURE ZONE
The contact closes and the pump or motor-driven
shut-off valve is activated)
* obligatory values for the present configuration
56
i-KI MTD / i-KIR MTD EN 10/2010
3*
U I A
REGOLAZIONE IMPIANTO
MAINTENANCE
AND SERVICE
E CARATTERISTICHE DI FUNZIONAMENTO
Alarm signals
When an alarm is activated, the
symbol comes one.
Displaying alarms
1
2
3
x3 sec.
• Press the
onds
and
buttons for 3 sec-
• Turn the knob
• Display the alarm codes
• Press the knob to confirm
• Resolve the problem and then reset the
alarms using the procedure described in
“Resetting alarms”
Resetting alarms
1
2
3
x3 sec.
• Press the
onds
and
buttons for 3 sec-
• Turn the knob
• Press the knob to confirm
• Alarms reset
• Select
Alarm log
The alarm log can only be displayed using the service keypad. Contact an authorised service centre.
The room controller can display the most recently activated
alarm code from Mn11:
- parameter 1100 = no. of alarms saved in the log (visible
only with service keypad)
- parameter 1101= code of last alarm activated
-
parameter 1102= alarm activation hour
parameter 1103= alarm activation minutes
parameter 1104= alarm activation day
parameter 1105= alarm activation month
parameter 1106= alarm activation year
EN 10/2010 i-KI MTD / i-KIR MTD
57
A
MAINTENANCE AND SERVICE
TABLE OF REMOTE KEYPAD ALARMS
Alarms displayed on the remote keypad.
Alarm code
A001
A002
A003
A005
A006
Cause
BT1 System heat exchanger water inlet temperature probe
BT2 System heat exchanger water outlet temperature probe
BT8 DHW storage temperature probe
BT9 Storage tank temperature probe
BT11 Outside air temperature probe
A013
F1 High pressure switch
A019
Difference between low and high pressure in refrigerant circuit too low
A022
Operation outside of limits
A025
Differential pressure switch / system flow switch F3 activated
A030
A033
A034
A035
A036
A038
A041
A042
A030
A033
A034
A035
A036
A038
A041
A054
Compressor operating hours reached
System pump operating hours reached
Domestic hot water pump operating hours reached
Mixed zone pump operating hours reached
Fan operating hours reached
System heat exchanger frost prevention alarm
DHW storage temperature too high
Inside frost prevention alarm
A055
Temperature probe N-THC n.1
A056
Address setting error on remote terminal supplied with the unit
A057
Address setting error on expansion module 2
A058
Temperature probe in low temperature zone LT2, expansion 2
A063
Address setting error on expansion module 3
A064
A075
A077
A094
Temperature probe in low temperature zone LT3, expansion 3
Water temperature too high in mixed circuit, expansion module 1
Water temperature too high in mixed circuit, expansion module 2
End defrost due to maximum time
A095
Temperature probe N-THC n.2
A096
Address setting error on zone remote terminal
A097
Temperature probe N-THC n.3
A098
Address setting error on zone remote terminal
A099
Temperature probe N-THC n.4
A100
Address setting error on zone remote terminal
A101
Temperature probe N-THC n.5
A102
Address setting error on zone remote terminal
A103
Address setting error on expansion module 1
Check connections
Probe faulty or disconnected
Check connections
Check address
Check connections
Probe faulty or disconnected
Check connections
Check address
Check connections
Probe faulty or disconnected
Check connections
Check address
Check connections
Probe faulty or disconnected
Check connections
Check address
Check connections
Check address, must be 1
A104
Low temperature zone LT1 temperature probe, expansion 1
Probe faulty or disconnected
A109
Low pressure alarm from low pressure switch
A114
Solar/pool module address setting error
Check connection
Check refrigerant circuit pressure
Check connections
Check address
A115
A116
A117
A120
Solar/pool module general alarm
Master unit not connected, cascade control
Slave unit not connected, cascade control
Water temperature too high in mixed circuit, expansion module, expansion module 3
A121
Temperature probe N-THC n.6
A122
Address setting error on zone LT3 remote terminal
A123
i-KI/i-KIR general alarm - Problems relating to the heat pump
A124
Humidity probe N-THC n.1
A125
Humidity probe N-THC n.2
A126
Humidity probe N-THC n.3
A127
Humidity probe N-THC n.4
A128
Humidity probe N-THC n.5
A129
Humidity probe N-THC n.6
58
Compressor operating hours reached
Solution
Probe faulty or disconnected
Probe faulty or disconnected
Probe faulty or disconnected
Probe faulty or disconnected
Probe faulty or disconnected
Check connection
Check refrigerant circuit pressure
Check refrigerant circuit pressure
Check refrigerant charge
Make sure outside air temperature and water temperature set point are inside the specified operating limits
Make sure filters are clean
Check water flow
Check for air in the system
Scheduled maintenance
Scheduled maintenance
Scheduled maintenance
Scheduled maintenance
Scheduled maintenance
Scheduled maintenance
Scheduled maintenance
Legionella prevention alarm
i-KI MTD / i-KIR MTD EN 10/2010
Check connections
Probe faulty or disconnected
Check connections
Check address
Check connections
Check address, must be 1
Probe faulty or disconnected
Check connections
Check address, must be 2
Probe faulty or disconnected
Check connections
Probe faulty or disconnected
Check connections
Check address
See alarms on the heat pump display and check
these against the table on the following page
Check connections
Probe faulty or disconnected
Check connections
Probe faulty or disconnected
Check connections
Probe faulty or disconnected
Check connections
Probe faulty or disconnected
Check connections
Probe faulty or disconnected
Check connections
Probe faulty or disconnected
I A
MAINTENANCE AND SERVICE
TABLE OF ALARMS ON HEAT PUMP DISPLAY
Alarms shown on the board display (PCB Display) located in the compressor compartment.
ERROR
CODE
-
FEATURES, PARTS, COMPONENTS
MALFUNCTIONING
POWER SUPPLY
CHECKS
Check the power supply
SOLUTION
Verify the power supply
If CF3 is blown, replace it and check if there is a short-circuit
on a connector on the 4-way valve, frost protection heater,
expansion vessel or circulating pump.
If a short-circuit is found, replace the components.
SIZE
0011-0031
-
-
FUSE CF3 (250V T5A)
Check electrical continuity using a
tester
-
-
FUSE CF2 (250V T5A)
Check electrical continuity using a
tester
If CF2 is blown, replace it and check if there is a short-circuit on a
connector on the 4-way valve, frost protection heater or expansion
vessel. If a short-circuit is found, replace the components.
0061
If CF1 is blown, replace the CONTROL BOARD on the
unit (PCB-CONTROLLER) and check resistance
between the pink-grey and orange-blue wires on the
POWER SUPPLY MODULE (PCBPOWER MODULE)
connector. If these values are below 100kΩ, replace the
POWER SUPPLY MODULE.
0031
0061
-
-
FUSE CF1 (250V T25A)
Check electrical continuity using a
tester
-
-
CONTROL BOARD
(PCB-CONTROLLER)
Other than described above.
Replace the CONTROL BOARD (PCB-CONTROLLER)
Unplug connector 9 and measure the
resistance between the red and black
wires on the connector. The correct
resistance value is above 100kΩ.
If the resistance is less than 100kΩ, replace the fan
motor.
Check electrical continuity of fuse CF4 using a tester.
If CF4 is blown, replace it.
FAN MOTOR
FUSE CF4 (250V T3.15A)
A0
DC voltage error
POWER SUPPLY MODULE
POWER SUPPLY
COMPRESSOR DISCHARGE
TEMPERATURE PROBE
COMPRESSOR SUCTION
TEMPERATURE PROBE
A1
Outlet temperature
error
REFRIGERANT GAS LEAK
COMPRESSOR DISCHARGE
TEMPERATURE PROBE
COMPRESSOR SUCTION
TEMPERATURE PROBE
REFRIGERANT GAS LEAK
Overcurrent protection
A2
Direct current (DC)
measurement
Current transformer
disconnected
Overcurrent protection
A4
Alternating current
(AC) measurement
COMPRESSOR
CONTROL BOARD
(PCB-CONTROLLER)
INCORRECT OPERATION IN
OVERLOAD
WATER PUMP BLOCKED
WATER CIRCUIT BLOCKED
POWER SUPPLY VOLTAGE
DROP
FUSE CF4 (250V T15A)
A5
Abnormal COMPRESSOR rotation
0011-0031
Replace the probe
0011-0031
Replace the probe
0031
Collect all the refrigerant and then recharge to the specified
mass
Replace the probe
FUSE CF2 (250V T15A)
POWER SUPPLY MODULE
COMPRESSOR
0061
Collect all the refrigerant and then recharge to the specified
mass
If CF2 is blown, replace the CONTROL BOARD (PCB-CONTROLLER)
Other not specified above
Replace the COMPRESSOR
-
0011-0031
Replace the probe
0011-0031
0031
0011-0031
Replace the CONTROL BOARD (PCB-CONTROLLER)
Check the installation position (intake Make sure the position doesn’t block the air intake and outlet
ABNORMAL CURRENT DRAW and outlet air blocked)
If excessive gas is evident, collect all the refrigerant and then
Check for excessive gas
recharge in accordance with rated data.
POWER SUPPLY VOLTAGE
Check power supply voltage (230V)
Confirm power supply voltage (230V)
DROP
MOMENTARY POWER CUT (IN
THE EVENT DI LIGHTNING)
0031
Verify the power supply
Check electrical continuity of FUSE
CF2 (250V T15A) using a tester
-
0011-0031
If the resistance is less than 100kΩ, replace the POWER
SUPPLY MODULE.
Check the installation position (intake Make sure the position doesn’t block the air intake and outlet
ABNORMAL CURRENT DRAW and outlet air blocked)
If excessive gas is evident, collect all the refrigerant and then
Check for excessive gas
recharge in accordance with rated data.
POWER SUPPLY VOLTAGE
Check power supply voltage (230V)
Confirm power supply voltage (230V)
DROP
Operate without connecting the com- If the same error appears again, replace the POWER SUPMODULE DI POWER
pressor connector.
PLY MODULE.
FUSE CF2 (250V T15A)
A3
Disconnect the terminals (orange and
blue) and check the resistance between
orange-blue. If the resistance is greater
than 100kΩ, the POWER SUPPLY
MODULE is normal.
Check power supply
Check resistance using a tester
[see table 2]
Check resistance using a tester
[see table 1]
Check the service valve and the
refrigerant circuit.
Check resistance using a tester
[see table 4]
Check resistance using a tester
[see table 3]
Check the service valve and the
refrigerant circuit.
0031
0031
0011-0031
Restart operation
Check the installation position (intake Make sure the position doesn’t block the air intake and outlet
and outlet air blocked)
If excessive gas is evident, collect all the refrigerant and then
Check for excessive gas
recharge in accordance with rated data.
Remove any obstructions, clean the water filter, unblock the
Check the pump and the water circuit.
pump.
Check power supply voltage (230V)
Confirm power supply voltage (230V)
Check electrical continuity of FUSE
CF4 (250V T15A) using a tester
Check electrical continuity of FUSE
CF2 (250V T15A) using a tester
Check the resistance of the POWER
SUPPLY MODULE using a tester.
Unplug the connector from the compressor and measure the resistance at the
ends of the connector six times:
between white-black, black-red, redwhite respectively and then reversing
polarity => If all the measurements are
above 100kΩ, the POWER SUPPLY
MODULE is working normally
Other not specified above
If CF4 is blown, replace the CONTROL BOARD
(PCB-CONTROLLER)
If CF2 is blown, replace the CONTROL BOARD
(PCB-CONTROLLER)
If one of these values is less than 100kΩ, replace the POWER SUPPLY MODULE
0011-0031
0011
0011-0031
0011
0031
0011-0031
Replace the COMPRESSOR
EN 10/2010 i-KI MTD / i-KIR MTD
59
I A
MAINTENANCE AND SERVICE
ERROR
CODE
A6
A7
A8
C0
C2
C1
FEATURES, PARTS, COMPONENTS
MALFUNCTIONING
Return temperature
probe error
COMPRESSOR SUCTION
TEMPERATURE PROBE
Defrost temperature
probe error
DEFROST PROBE
Outlet temperature
probe error
COMPRESSOR DISCHARGE
TEMPERATURE PROBE
Power supply module
error
Outside temperature
probe error
Upper fan motor error
(*1)
POWER SUPPLY MODULE
Lower fan motor error
(*1)
0031
0011
0031
Replace the probe if faulty
0011
0031
Replace the probe if faulty
0011
Replace the POWER SUPPLY MODULE
0011-0031
FUSE CF7 (250V T3.15A)
If CF7 is blown, replace the fan motor. If CF7 is not
blown, check fan motor voltage. If the voltage is withCheck electrical continuity of FUSE
in the standard values, replace the fan motor. If the
CF7 (250V T15A) using a tester
voltage is not within the standard values, replace the
CONTROL BOARD (PCB-CONTROLLER).
FAN MOTOR (*1)
CONTROL BOARD
(PCB-CONTROLLER)
FAN MOTOR (*1)
SIZE
Replace the probe if faulty
Check resistance using a tester
[see table 1]
CONTROL BOARD
(PCB-CONTROLLER)
C3
-
SOLUTION
OUTSIDE TEMPERATURE
PROBE
FUSE CF6 (250V T3.15A)
C3
CHECKS
Check resistance using a tester
[see table 1]
Check resistance using a tester
[see table 3]
Check resistance using a tester
[see table 1]
Check resistance using a tester
[see table 3]
Check resistance using a tester
[see table 2]
Check resistance using a tester
[see table 4] (*2)
Replace the probe if faulty
0061
If CF6 is blown, replace the fan motor. If CF6 is not
blown, check fan motor voltage. If the voltage is withCheck electrical continuity of FUSE
in the standard values, replace the fan motor. If the
CF6 (250V T15A) using a tester
voltage is not within the standard values, replace the
CONTROL BOARD (PCB-CONTROLLER).
FUSE CF4 (250V T3.15A)
If CF4 is blown, replace the fan motor. If CF4 is not
blown, check fan motor voltage. If the voltage is withCheck electrical continuity of FUSE
in the standard values, replace the fan motor. If the
CF4 (250V T15A) using a tester
voltage is not within the standard values, replace the
CONTROL BOARD (PCB-CONTROLLER).
0031
FAN MOTOR (*1)
Check FAN MOTOR voltage
If the voltage is correct, replace the FAN MOTOR.
If the voltage is not correct, replace the CONTROL BOARD
(PCB).
0011
Fan motor error (*1)
CONTROL BOARD
(PCB-CONTROLLER)
C4
POWER MODULE
temperature increase
(above 110°C)
INCORRECT INSTALLATION
TEMPERATURE PROBE
POWER SUPPLY MODULE
Check the installation position
(intake and outlet air blocked)
Make sure the position doesn’t block the air intake and outlet
Replace the POWER SUPPLY MODULE
C5
Power supply module
TEMPERATURE PROBE
temperature probe error POWER SUPPLY MODULE
-
Replace the POWER SUPPLY MODULE
C6
CONTROL BOARD
(PCB-CONTROLLER)
error
CONTROL BOARD
(PCB-CONTROLLER)
-
Replace the CONTROL BOARD (PCB-CONTROLLER)
PCB serial interface
error
INCORRECT CONTROL
BOARD (PCB-CONTROLLER)
- WIRING LOOSE PCB INTERFACE CONNECTION CABLE
OR CONTACTS
PCB INTERFACE
CONTROL BOARD
(PCB-CONTROLLER)
C7
C8
CC
Printed circuit board
(PCB) serial converter
error
Heat pump PCB
controller serial error
CONNECTOR 13 INCORRECT
CONTACT or POWER SUPPLY
MODULE and PRINTED CIRCUIT BOARD (PCB)
INCORRECT WIRING [PCB
INTERFACE – HEAT PUMP
CONTROLLER] OR LOOSE
CONTACTS
PCB INTERFACE
HEAT PUMP CONTROLLER
E4
E5
FU
(*1)
(*2)
60
Water outlet temperature probe error
WATER OUTLET TEMPERATURE PROBE
Water return temperature probe error
WATER RETURN TEMPERATURE PROBE
High pressure switch
activated
Check loose cable connections and
After having corrected the wiring, restart operation
contacts
Other not specified above
Replace the PCB interface
Other not specified above
Replace the CONTROL BOARD (PCB-CONTROLLER)
Power down, wait around 3 minutes
If the same error appears again, replace the POWER SUPUnplug connector 13 and plug it
PLY MODULE.
back in, then power up again
After having replaced the POWER
SUPPLY MODULE, restart operation
If the same error appears again, replace the printed circuit
board (PCB).
Check loose cable connections and Check loose cable connections and contacts. Then restart
contacts
operation
Other not specified above
Replace the PCB interface
Other not specified above
Replace heat pump PCB controller
Check resistance using a tester
[see table 1]
Check resistance using a tester
[see table 5]
Check resistance using a tester
[see table 1]
Check resistance using a tester
[see table 5]
0031
Replace the probe if faulty
0011
0031
Replace the probe if faulty
0011
AIR CIRCULATION
INSUFFICIENT
Check the installation position
(intake and outlet air blocked)
Make sure the position doesn’t block the air intake and outlet
WATER CIRCULATION
INSUFFICIENT
Check the temperature difference
between water intake and outlet.
If the difference is high it means
that water flow-rate is too low.
Remove obstructions, clean the water filter and unblock the
pump.
0061
While fan motor and/or pump control is active, disconnect the power supply completely and touch the corresponding terminals or connectors.
If an open circuit is measured on the discharge temperature thermistor, the error screen is displayed 10 minutes after operation commences.
If an open circuit is measured on the discharge temperature thermistor, the error screen is displayed immediately.
i-KI MTD / i-KIR MTD EN 10/2010
0011-0031
I A
MAINTENANCE AND SERVICE
FEATURES, PARTS, COMPONENTS
MALFUNCTIONING
P3
High pressure
switch error
U5
Below-normal temperature measured
CIRCULATING PUMP PRINTED
CIRCUIT BOARD (PCB) (*1)
WATER PUMP BLOCKED
WATER CIRCUIT BLOCKED
High pressure switch
The unit should not be operated
below -20°C to protect the various
components
Check resistance using a tester
OUTSIDE TEMPERATURE PROBE
[see table 1]
THE OUTSIDE TEMPERATURE
FALLS BELOW -20°C
4-WAY VALVE
OUTSIDE AIR RECIRCULATION
No cooling
No heating
WATER CIRCULATION OUTLET
AND RETURN TEMPERATURE
PROBE
GAS LEAK
WATER CIRCUIT BLOCKED
Data Display Monitor Description
Water return temperature
Compressor operating frequency
Discharge temperature
Power consumption
Defrost thermistor temperature
Room air temperature
Suction temperature
Water outlet temperature
SIZE
When the temperature increases again, the unit automatically resumes operation
0031
Replace the probe if faulty
Check resistance using a tester
If the value is not within the standard range, replace the coil
Check air blockages at intake and
outlet
Check resistance using a tester
[see table 1]
Check resistance using a tester
[see table 5]
Check the service valve and the
refrigerant circuit.
Check the temperature difference
between water outlet and return.
If the difference is high it means
that water flow-rate is too low.
Make sure the position doesn’t block the air intake and outlet
Heat pump display
To display the data measured by the probes on the outdoor
unit, set switch 4 on the display to the ON position.
Then scroll the data shown in the table using the PUMP SW
button.
Monitor
d0
d1
d2
d3
d5
d6
d8
d9
SOLUTION
If the voltage is within the standard values, the pump does
Check pump voltage
not need to be replaced. If the voltage is not within the
standard values, replace the printed circuit board (PCB).
0011-0031
Check the pump and the water cir- Remove any obstructions, clean the water filter, unblock the
cuit.
pump.
Check loose cable connections and if the same error appears again replace the high pressure
0061
contacts
switch
0011-0031
0031
If one of these probes is faulty, replace it
0011
After having repaired the leak, collect all the refrigerant and
then recharge to the specified mass
Remove obstructions, clean the water filter and unblock the
pump.
0011-0031
MODE SW.
ON
Circulating pump
error
P1
CHECKS
1 2 3 4
OFF
ERROR
CODE
Unit
1 °C
1 Hz
1 °C
100 W
1 °C
1 °C
1 °C
1 °C
Monitor display
PCB (DISPLAY)
PUMP SW.
RESET SW.
Table 1
Defrost temperature probe
(0031m)
Outside temperature probe
Suction temperature probe
(0031m)
Water circulation outlet
temperature probe
Table 2
Discharge temperature probe
(0031m)
TEMPERATURE Resistance
(°C)
(kΩ)
0
31
5
24
10
19
15
15
20
12
25
10
30
8
35
6,7
40
5,5
45
4,6
50
3,8
55
3,2
Table 3
Defrost temperature probe
(0011m, 0061m)
TEMPERATURE Resistance
(°C)
(kΩ)
10
1000
20
600
35
300
40
250
50
160
80
50
Table 4
Discharge temperature
probeo (0011m, 0061m)
TEMPERATURE Resistance
(°C)
(kΩ)
10
100
20
64
35
33
40
27
50
18
80
6,4
Table 5
Circuit water outlet and return
temperature probe (0011m)
TEMPERATURE Resistance
(°C)
(kΩ)
0
31
10
19
20
12
30
8,1
40
5,5
50
3,8
Suction temperature probe
(0011m, 0061m)
TEMPERATURE Resistance
(°C)
(kΩ)
0
29
5
23
10
19
15
15
20
12
25
10
30
8,3
35
6,9
40
5,7
45
4,8
50
4,1
55
3,4
EN 10/2010 i-KI MTD / i-KIR MTD
61
A
MAINTENANCE AND SERVICE
Resetting alarms displayed by the board on the unit
Press the PUMP SW and RESET SW buttons at the same
time for 5 seconds to reset the alarm.
The alarms are reset automatically no operations are carried
out for 5 minutes.
While an error code is being displayed, holding the reset
button for 10 seconds or more resets the alarm log.
Alarm log shown by the board on the unit
Press and hold the PUMP SW and RESET SW buttons
together for 5 seconds until the log of error codes and the
sequential number is shown.
The PUMP SW button is used to select a maximum of 8
past error codes on the display.
If there are no errors saved, the display shows "--".
0011m
alarm no.
PUMP SW
RESET SW
0031m
RESET SW
button
alarm no.
PUMP SW
button
SYSTEM emergency operation
If the heat pump is not working correctly or the compressor
has shut down, emergency operation can be activated.
Emergency operation involves heating the water using the
electric heaters available on the system (outlet, storage
tank).
The compressor remains off.
To enable manual operation of system heaters, set parameter 0620 = 1 (manual)
Description
Menu Parameter
no.
Type of outlet electric heater oper- Mn01
010G
ation
0 = Supplementary
1 = Replacement
Mn06
0620
Enable manual heater operation
Default
UOM
1
1
Set the parameters following the sequence described in
the table
DOMESTIC HOT WATER emergency operation
If the heat pump is not working correctly or the compressor
has shut down, emergency operation can be activated.
Emergency operation involves heating the domestic hot
water using the electric heater inside the storage tank.
Description
Electric heater operating mode
0 = heat pump only
1 = electric heater only
2 = heat pump + electric heater
Menu Parameter Valore da
impostare
no.
Mn02
1
0202
UOM
To enable manual operation of DHW storage heaters, set
parameter 0202 = 1
SHUTTING DOWN FOR LONG PERIODS
After deactivating the heat pump:
- Disconnect the unit from the power supply.
- Make sure the remote keypad is in the “OFF” position.
- Place QF1 in the OFF position (see wiring diagram).
- Deactivate the indoor terminal units by placing the switch
of each unit in the “OFF” position.
- Close the water valves.
If the outside temperature may fall below zero; there is
the risk of freezing.
The water circuit MUST BE EMPTIED AND CLOSED (if
draining after operation in heat pump mode, beware that
62
i-KI MTD / i-KIR MTD EN 10/2010
A
the water may be hot), or antifreeze must be added in
the proportion recommended by the manufacturer.
It is recommended to use non-toxic food grade
antifreeze, compliant with the standards in force in the
countries where the unit is used, if domestic hot water
production is also featured.
If the mains switch is turned to “off” for more than four
hours, after turning it on and before reactivating the unit,
leave the power on but the unit deactivated for at least
two hours to preheat the oil in the compressor sump.
A
SCHEDULED MAINTENANCE
Never perform any cleaning operations before having
disconnected the unit from the mains power supply.
Make sure power is not connected before proceeding.
Control maintenance is fundamental to maintain the efficiency of the unit both in terms of operation and energy consumption. The Technical Service maintenance plan must be
observed, with an annual service which includes the following operations and checks:
- Filling of the water circuit;
- Presence of air bubbles in the water circuit;
- Efficiency of safety devices;
- Power supply voltage;
- Electrical power input;
- Tightness of electrical and water connections;
- Condition of the compressor contactor;
- Efficiency of the plate heat exchanger resistor;
- Verification of operating pressure, superheating and subcooling
- Efficiency of the compressor heater
- Cleaning of the finned coil every three months
- Cleaning of the fan grills
- Cleaning of condensate drain pan.
- Cleaning of water filters.
- Checking the ventilation openings on the base are free of
leaves, bushes or anything else that may obstruct air flow.
For units installed near the sea, the intervals between maintenance should be halved.
U I A
UNSCHEDULED MAINTENANCE
Never perform any cleaning operations before having
disconnected the unit from the mains power supply.
Make sure power is not connected before proceeding.
- Always check the superheating and subcooling values,
which should be between 5 and 10°C and 4 and 8°C.
- After a couple of hours operation, check that the liquid
indicator indicates a dry circuit (dry-green).
CHEMICAL WASHING
It is recommended to chemically flush the plate heat
exchanger after every 3 years of operation.
To perform this operation, contact a specialist technician.
REFRIGERANT GAS CHARGE
The chillers are filled with R410A refrigerant gas and tested
in the factory. In normal conditions, there should be no need
for the Technical Service to intervene to check the refrigerant gas. However, over time, small leaks may develop at the
joints leading to loss of refrigerant and draining of the circuit,
causing the unit to function poorly.
In this case, the leaks of refrigerant must be identified and
repaired and the refrigerant circuit recharged.
Proceed as follows:
- Empty and dry the entire refrigerant circuit using a vacuum
pump connected to the low and high pressure tap until the
vacuometer reads about 10 Pa.
Wait a couple of minutes and check that this value does
not rise to more than 50 Pa.
- Connect the refrigerant gas cylinder or a filling cylinder to
the low pressure line pressure gauge connection
- Charge the quantity of refrigerant indicated on the unit’s
rating plate.
In the event of partial leaks, the circuit must be completely emptied before being recharged.
The R410A refrigerant must only be charged in the liquid state.
Operating conditions other than rated conditions may
produce considerably different values.
Tightness testing or identification of leaks must only be
carried out using R410A refrigerant gas, checking with a
suitable leak detector.
The refrigerant circuit must not be charged with a
refrigerant other than that indicated on the rating plate
and in this manual.
The use of a different refrigerant may cause serious
damage to the compressor.
Oxygen, acetylene or other flammable or poisonous gases must never be used in the refrigerant circuit as they
may cause explosion or poisoning.
Oils other than those indicated must not be used.
The use of different oil may cause serious damage to the
compressor.
A
DISPOSAL
The unit must be disposed of according to the legislation
in force in the country concerned
USEFUL INFORMATION
U I A
For information on technical assistance and obtaining spare parts, contact
CLIMAVENETA S.P.A.
AFTER SALES DEPARTMENT - RESIDENTIAL BUSINESS
Via Duca d’Aosta 121 - 31031 Mignagola di Carbonera (TV) ITALY
Tel: +39.0424.509500
Fax: +39.0424.509563
www.climaveneta.com - [email protected]
EN 10/2010 i-KI MTD / i-KIR MTD
63
U I A
LIST OF PARAMETERS
Description
Menu
Parameter no.
Enable domestic hot water set point: 0 = Economy, 1 = Comfort
Mn00
0015
Domestic hot water Economy set point
Mn00
0022
°C
Domestic hot water Comfort set point
Mn00
0023
°C
User password
Mn00
0036
Enable remote contact: 0= remote contact enabled, 1= remote contact disabled (selection from keypad only)
Mn01
0100
Automatic mode changeover set point in HEATING
Mn01
0106
°C
Automatic mode changeover differential in HEATING
Mn01
0107
°C
Automatic mode changeover set point in COOLING
Mn01
0108
°C
Automatic mode changeover differential in COOLING
Mn01
0109
°C
Type of outlet heater operation: 0 = Supplementary , 1 = Replacement
Mn01
010G
Type of boiler operation: 0 = Supplementary , 1 = Replacement
Mn01
010H
Maximum return set point limit in cooling mode (Tm1)
Mn01
0128
°C
Outside minimum temperature corresponding to max. return temperature (Te1)
Mn01
0129
°C
Enable compensation for room humidity, ZONE LT3: 0= Disabled , 1= Enabled
Mn01
012N
Room relative humidity value to start increasing water outlet temperature set point, ZONE LT3
Mn01
012P
%
Maximum outlet temperature hysteresis corresponding to 100% relative humidity
Mn01
012R
°C
Minimum return set point limit in cooling mode (Tm2)
Mn01
0130
°C
Maximum outside temperature corresponding to min. return temperature (Te2)
Mn01
0131
°C
Maximum outlet temperature set point limit in cooling mode (Tm1)
Mn01
0132
°C
Minimum outside temperature corresponding to max. outlet temperature (Te1)
Mn01
0133
°C
Minimum outlet temperature set point limit in cooling mode (Tm2)
Mn01
0134
°C
Maximum outside temperature corresponding to min. outlet temperature (Te2)
Mn01
0135
°C
Maximum outlet temperature set point limit in cooling mode (Tm1)
Mn01
0136
°C
Minimum outside temperature corresponding to max. outlet temperature (Te1)
Mn01
0137
°C
Minimum outlet temperature set point limit in cooling mode (Tm2)
Mn01
0138
°C
Maximum outside temperature corresponding to min. outlet temperature (Te2)
Mn01
0139
°C
Inside temperature to enable frost protection
Mn01
0140
°C
Outside air temperature for frost protection
Mn01
0141
°C
Enable SYSTEM compensation curve 0= Disabled 1= Enabled
Mn01
0152
Fixed return water temperature set point in HEATING
Mn01
0153
Enable SYSTEM compensation curve: 0= Disabled, 1= Enabled
Mn01
0154
Fixed return water temperature set point in COOLING
Mn01
0155
Enable compensation for room humidity, SYSTEM: 0= Disabled , 1= Enabled
Mn01
0156
Room relative humidity value to start increasing SYSTEM return water set point
Mn01
0157
%
Maximum return temperature hysteresis corresponding to 100% relative humidity
Mn01
0158
°C
SYSTEM compensation curve number
Mn01
0159
Enable contact as: 0= Alarm signal, 1= Dehumidifier, 3= Secondary circuit pump
Mn01
015A
Enable compensation curve for zone LT3 0= Disabled 1= Enabled
Mn01
015E
Enable room temperature influence on SYSTEM 0= Disabled 1= Enabled
Mn01
0163
SYSTEM Room Authority
Mn01
0164
%
Minimum set point limit for SYSTEM curve
Mn01
0165
°C
Maximum set point limit for SYSTEM curve
Mn01
0166
°C
Enable compensation curve for zone LT1 0= Disabled 1= Enabled
Mn01
0167
Enable compensation curve for zone LT1: 0= Disabled, 1= Enabled
Mn01
0169
Enable compensation for room humidity, ZONE LT1: 0= Disabled , 1= Enabled
Mn01
0171
Room relative humidity value to start increasing water outlet temperature set point, ZONE LT1
Mn01
0172
%
Maximum outlet temperature hysteresis corresponding to 100% relative humidity
Mn01
0173
°C
Zone LT1 compensation curve number
Mn01
0174
Enable room temperature influence on LT1 0= Disabled 1= Enabled
Mn01
0178
LT1 Room Authority
Mn01
0179
%
MINIMUM outlet set point limit for compensation curve in zone LT1
Mn01
0180
°C
MAXIMUM outlet set point limit for compensation curve in zone LT1
Mn01
0181
°C
Enable compensation curve for zone LT2 0= Disabled 1= Enabled
Mn01
0182
Enable compensation curve for zone LT2: 0= Disabled, 1= Enabled
Mn01
0184
Enable compensation for room humidity, ZONE LT2: 0= Disabled , 1= Enabled
Mn01
0186
Room relative humidity value to start increasing water outlet temperature set point, ZONE LT2
Mn01
0187
%
Maximum outlet temperature hysteresis corresponding to 100% relative humidity
Mn01
0188
°C
Zone LT2 compensation curve number
Mn01
0189
Enable room temperature influence on LT2 0= Disabled 1= Enabled
Mn01
0193
LT2 Room Authority
Mn01
0194
%
MINIMUM outlet set point limit for compensation curve in zone LT2
Mn01
0195
°C
MAXIMUM outlet set point limit for compensation curve in zone LT2
Mn01
0196
°C
Electric heater operating mode: 0 = heat pump only, 1 = electric heater only, 2 = heat pump + electric heater
Mn02
0202
Domestic hot water set point with heater
Mn02
0209
64
i-KI MTD / i-KIR MTD EN 10/2010
UOM
°C
°C
°C
U I A
LIST OF PARAMETERS
Description
Menu
Parameter no.
UOM
Domestic hot water temperature set point for Legionella prevention
Mn02
0211
°C
Legionella prevention cycle day MONDAY (0=no 1=yes)
Mn02
0213
Legionella prevention cycle day TUESDAY (0=no 1=yes)
Mn02
0214
Legionella prevention cycle day WEDNESDAY (0=no 1=yes)
Mn02
0215
Legionella prevention cycle day THURSDAY (0=no 1=yes)
Mn02
0216
Legionella prevention cycle day FRIDAY (0=no 1=yes)
Mn02
0218
Legionella prevention cycle day SATURDAY (0=no 1=yes)
Mn02
0219
Legionella prevention cycle day SUNDAY (0=no 1=yes)
Mn02
0220
Legionella prevention cycle time
Mn02
0221
Enable Legionella prevention function 0 = Not enabled 1 = Enabled
Mn02
0222
Legionella prevention function with: 0 = heat pump only 1 = electric heater only 2 = heat pump + electric heater
Mn02
0223
Maximum Legionella prevention function duration
Mn02
0225
Enable electric heater: 0 = Heater not enabled, 1 = Heater enabled
Mn03
0300
Enable boiler: 0 = Boiler not enabled, 1 = Boiler enabled
Mn03
0301
Activation for low outside air temperature: 0 = Function not enabled, 1 = Function enabled
Mn03
0303
Outside air temperature to enable electric heater
Mn03
0304
Activation for low outside air temperature: 0 = Function not enabled, 1 = Function enabled
Mn03
0306
Outside air temperature to enable boiler
Mn03
0307
°C
Minimum outside air temperature for heat pump operation
(make sure the value shown in the table is set)
Mn03
0311
°C
Electric heater activation delay time
(allows the heat pump to reach steady operation and thus avoid activating the heater when not needed)
Mn06
0616
min.
Integration time to activate outlet electric heaters
Mn06
0617
°C*sec
Boiler activation delay time
(allows the heat pump to reach steady operation and thus avoid activating the boiler when not needed)
Mn06
0618
min.
Integration time to activate boiler
Mn06
0619
°C*sec
Enable manual heater operation
Mn06
0620
Domestic hot water set point
Mn00
0023
User password
Mn00
0036
Relationship between plant and ambient: 0 = Unit work on ambient request, 1 = Unit work indipendent
Mn01
011D
Installer password
Mn01
011G
Enable compensation curve for LT3 in HEATING 0= Disabled (fixed set point operation) 1= Enabled
Mn01
011R
Enable compensation curve for zone LT3: 0= Disabled, 1= Enabled
Mn01
011T
Fixed water outlet temperature set point for LT3 in HEATING
Mn01
011U
Zone LT3 compensation curve number
Mn01
012A
Enable room temperature influence on LT3 0= Disabled 1= Enabled
Mn01
012D
LT3 Room Authority
Mn01
012E
%
MINIMUM outlet set point limit for compensation curve in zone LT3
Mn01
012F
°C
MAXIMUM outlet set point limit for compensation curve in zone LT3
Mn01
012G
°C
Maximum outlet temperature set point limit in cooling mode (Tm1)
Mn01
012H
°C
Minimum outside temperature corresponding to max. outlet temperature (Te1)
Mn01
012J
°C
Minimum outlet set point limit in cooling mode (Tm2)
Mn01
012L
°C
Minimum outside temperature corresponding to min. outlet temperature (Te2)
Mn01
012M
°C
Activation of system pump operation at intervals: 0= system pump always on, 1=system pump operation at intervals
Mn01
0143
System pump operating time in sniffing mode
Mn01
0147
System pump off time between one sniffing cycle and the next
Mn01
0148
Enable contact as: 0 =Reduced electricity rate, 1=Stop operation due to excess power consumption
Mn01
015D
Enable compensation curve for LT1 in HEATING 0= Disabled (fixed set point operation) 1= Enabled
Mn01
0168
Fixed water outlet temperature set point for LT1 in HEATING
Mn01
0170
Enable compensation curve for LT2 in HEATING 0= Disabled (fixed set point operation) 1= Enabled
Mn01
0183
Fixed water outlet temperature set point for LT2 in HEATING
Mn01
0185
Minimum heat pump operating time for system
Mn02
0226
Maximum heat pump operating time to reach domestic hot water set point
Mn02
0227
Three-way valve travel time for domestic hot water production
Mn02
0231
sec.
BT1 Heat exchanger water inlet temperature probe
Mn09
0900
°C
BT2 Heat exchanger water outlet temperature probe
Mn09
0901
°C
BT8 Domestic hot water probe
Mn09
0902
°C
BT7 Unit control air temperature probe
Mn09
0903
°C
BT9 Storage tank probe
Mn09
0904
°C
BT11 Outside air temperature probe for set point management
Mn09
0905
°C
EN 10/2010 i-KI MTD / i-KIR MTD
h
min.
°C
°C
°C
°C
65
U I A
INSTALLER OPERATIONS CHECKLIST
Installer: __________________________________________ Designer: _______________________________________
Type of application:___________________________________________________________________________________
Street ___________________________________________________________________________ number _____________
City/town __________________________ Postcode/ZIP code _____________ Province/State _________________________
Unit model installed ________________________________________ Serial number _________________________________
Is there a system design? YES ❑ NO ❑
If YES, has the system been developed completely in accordance with the design? YES ❑ NO ❑
Installation date: ____________________________________
Systems included:
• Winter heating AT (radiators)
❑
• Summer cooling
❑
• Winter heating MT (fan coil)
❑
• DHW production
❑
• Winter heating BT (radiant panels)
❑
• Solar thermal installed
❑
Mark the type of system installed and describe the components in the corresponding tables
Heating system circuit
Storage tank
Additional
expansion vessel
Volume [l]
Type/model
HEAT
PUMP
HEAT
PUMP
Secondary pump
Installed?
Type/model
❑
❑
Hot water set point:
__________ °C
Cold water set point:
__________ °C
Domestic hot water circuit
HEAT
PUMP
HEAT
PUMP
Storage tank Storage
with coil
cylinder
Expansion
vessel
Volume [l]
❑
❑
Type/model
Coil water
volume [l]
Coil heat
exchange area
[m2]
HEAT
PUMP
Domestic hot water set point: __________ °C
❑
66
i-KI MTD / i-KIR MTD EN 10/2010
U I A
INSTALLER OPERATIONS CHECKLIST
CONCERNING UNIT INSTALLATION OPERATIONS AND SETUP FOR COMMISSIONING
HAVE THE FOLLOWING CHECKS BEEN COMPLETED?
Components installed (as described in the paragraph on "Water circuit connections")
YES
NO
• Two pressure gauges with a suitable scale are installed on the inlet and outlet
❑
❑
• Shut-off valves are installed on the heating system circuit and domestic hot water circuit inlet and outlet
❑
❑
• Two thermometers are installed, on the inlet and outlet
❑
❑
• All pipes are insulated with suitable vapour barrier material to prevent formation of condensate and heat loss,
with control and shut-off devices protruding from the insulation
❑
❑
• Drain valves are installed at the lowest points in the system
❑
❑
• Automatic or manual air vent valves are installed at the highest points in the system
❑
❑
• An additional expansion vessel is installed on the system if the standard vessel is insufficient
❑
❑
• Vibration damper joints are installed on the inlet and outlet water pipes
❑
❑
• A low-loss header is installed if the water content is insufficient
❑
❑
• Vibration damper supports are installed on the unit
❑
❑
• The domestic hot water production system is installed
❑
❑
• The safety valve is installed and suitably sized
❑
❑
• The domestic hot water expansion vessel is installed and suitably sized
❑
❑
Checks (as described in the paragraph on "Checking and starting up the unit")
CHECKED
• Two pressure gauges with a suitable scale are installed on the inlet and outlet
❑
• The unit is positioned as described in the chapter on "Positioning" in this manual
❑
• The filter is installed on the system return/inlet as close as possible to the unit and in a position that is easy to
access for maintenance. REQUIRED component, this must be installed before water circulates through the heat
exchanger otherwise the warranty will be void
❑
• The filter is installed on the domestic hot water return/inlet as close as possible to the unit and in a position that
is easy to access for maintenance. REQUIRED component, this must be installed before water circulates
through the heat exchanger otherwise the warranty will be void
❑
• (Water-to-water units only) The filter is installed on the source return/inlet as close as possible to the unit and in
a position that is easy to access for maintenance. REQUIRED component, this must be installed before water
circulates through the heat exchanger otherwise the warranty will be void
❑
• The flow switch is installed on the unit's outlet to the heating system circuit and is electrically connected.
REQUIRED component, this must be installed before water circulates through the heat exchanger otherwise
the warranty will be void
❑
• (Water-to-water units only) The flow switch is installed unit's outlet to the source circuit and is electrically
connected. REQUIRED component, this must be installed before water circulates through the heat exchanger
otherwise the warranty will be void
❑
EN 10/2010 i-KI MTD / i-KIR MTD
67
U I A
INSTALLER OPERATIONS CHECKLIST
Checks (as described in the paragraph on "Checking and starting up the unit")
CHECKED
• The connection pipes are suitably supported so that these do not weigh on the appliance
❑
• Correct sizing of the expansion vessel has been verified according to the system water content and the
expected operating temperature
❑
• The position of the outside air temperature probe complies with the information provided in the installation manual
❑
• The position of the room controllers installed complies with the information provided in the installation manual
❑
• The position of the DHW storage tank probe complies with the information provided in the installation manual
❑
• (Units with heat recovery only) The non-return valve is fitted on the domestic hot water circuit
❑
• All safety conditions have been respected
❑
• The unit is fixed to the surface it rests on
❑
• Water connections have been carried out as indicated in the installation manual
❑
• All water connections are tight
❑
• All electrical connections are tight
❑
• Make sure the water circuit has been washed and drained
❑
• There is no air in the system (vent if necessary)
❑
• The valves on the water circuit are open
❑
• Electrical connections have been carried out correctly
❑
• Voltage is within a tolerance of 10% of the rated voltage for the unit
❑
• Unbalance between phases is less than 2%, for three-phase units
❑
• Maintenance clearances comply with the specifications in the Installation manual under the section on
POSITIONING
❑
• Power supply electrical complies with the data on the rating plate and specified in the Installation manual under
the section on MAINS POWER SUPPLY CONNECTION
❑
• The system water content complies with the specifications in the Installation manual under the section on
WATER CONNECTIONS
❑
• Suitable water flow-rate for operation of the entire unit is guaranteed as specified in the Installation manual
under the section on WATER CONNECTIONS
❑
• (Air-to-water units only) The system has been protected with antifreeze, respecting the quantities shown in the
Installation manual under the section on WATER CONNECTIONS
❑
• The DHW storage tank has been fitted with an electric heater for Legionella prevention
❑
It is hereby declared that the site and access to the site where the unit to be operated or serviced is installed has been made
safely accessible in compliance with all safety standards specified by Italian law 81/08 in force. A supervisor must be present on
site to inform workers of residual risks in the workplace.
WARNING:
Failure to complete commissioning due to causes not attributable to the unit will require a second visit, to be charged to the customer directly by the local service centre.
Installer's signature ___________________________________________________
68
i-KI MTD / i-KIR MTD EN 10/2010
Date ________________________
COD. C01002064C_01
Climaveneta S.p.A.
Via Sarson 57/c
36061 Bassano del Grappa (VI)
Italy
Tel +39 0424 509500
Fax +39 0424 509509
[email protected]
www.climaveneta.com
Climaveneta France
3, Village d’Entreprises
ZA de la Couronne des Prés
Avenue de la Mauldre
78680 Epone
France
Tel +33 (0)1 30 95 19 19
Fax +33 (0)1 30 95 18 18
[email protected]
www.climaveneta.fr
Climaveneta Deutschland
Rhenus Platz, 2
59439 Holzwickede
Germany
Tel +49 2301 91222-0
Fax +49 2301 91222-99
[email protected]
www.climaveneta.de
Climaveneta
Espana - Top Clima
Londres 67, 1° 4°
08036 Barcelona
Spain
Tel +34 963 195 600
Fax +34 963 615 167
[email protected]
www.climaveneta.com
Climaveneta Chat Union
Refrig. Equipment Co Ltd
88 Bai Yun Rd, Pudong Xinghuo
New dev. zone 201419 Shanghai
China
Tel 008 621 575 055 66
Fax 008 621 575 057 97
Climaveneta Polska Sp. z o.o.
Ul. Sienkiewicza 13A
05-120 Legionowo
Poland
Tel +48 22 766 34 55-57
Fax +48 22 784 39 09
[email protected]
www.climaveneta.pl
Climaveneta India
Climate Technologies (P) LTD
#3487, 14th Main, HAL 2nd stage,
Indiranagar, Bangalore 560008
India
Tel +91-80-42466900 - 949
Fax +91-80-25203540
[email protected]
Climaveneta UK LTD
Highlands Road,
Shirley Solihull
West Midlands B90 4NL
Tel: +44 (0)871 663 0664
Fax: +44 (0)871 663 1664
Freephone: 0800 801 819
[email protected]
www.climaveneta.co.uk
www.climaveneta.com
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