CLIMAVENETA i-KIR2 MTD Operating instructions

INSTALLATION - USER - MAINTENANCE MANUAL
i-KIR2 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
EN
i-KIR2 MTD
0011m ÷ 0061m

2i-KIR2 MTD EN
U I A
User
Installer
Assistance
Important
Prohibition
Danger voltage
Danger high temperatures
INDEX U I A
The manufacturer reserves the right to modify the data in this manual without warning.
Eurovent certification program.
The following symbols are used in this publication and inside the unit:
General warnings 3
Waiver of liability 3
Fundamental safety rules 3
Receiving and handling the product 4
Unit identification 5
Description of standard unit 6
Dimensioned drawings 7
Minimum clearances 8
Heat pump installation 8
Water connections 9
Electrical connections 13
Wiring diagrams 14
Remote contact terminal diagrams 16
Installer connections to be performed 17
on the inside module
Installer connections 18
General technical data 33
Operating limits 34
Checking and starting up the unit 36
Description of room controller buttons and 37
display
Operation and functions of the room controller 39
Control and operating characteristics 52
Maintenance and service 57
Shutting down for long periods 62
Routine maintenance 63
Special maintenance 63
Disposal 63
Useful information 63
Installer operations CHECKLIST 64
U I A I A
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3EN i-KIR2 MTD
GENERAL WARNINGS U I A
FUNDAMENTAL SAFETY RULES U I A
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.
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.
The documents supplied with the unit must be con-
signed to the owner who should keep them carefully for
future consultation in the event of maintenance or ser-
vice.
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.
Ricordiamo che l’utilizzo di prodotti che impiegano energia elettrica ed acqua, comporta l’osservanza di alcune regole fonda-
mentali di sicurezza quali:
The unit must not be used by children or by unfit per-
sons 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 authori-
sation 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 dia-
gram).
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 opera-
tions.
Power supply: the cross section of the electrical cables
must be adequate for the power of the unit and the pow-
er supply voltage must correspond with the value indicat-
ed on the respective units. All units must be earthed in
conformity with legislation in force in the country con-
cerned.
Terminals from 41 to 52, 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 distrib-
ution table) to avoid damage.
WAIVER OF LIABILITY
This publication is the sole property of Manufacturer. Any
reproduction or disclosure of such is strictly prohibited with-
out the written authorisation of Manufacturer.
This document has been prepared with maximum care and
attention paid to the content shown. Nonetheless, Manufac-
turer waives all liability deriving from the use of such docu-
ment.
Read this document carefully. All work must be performed,
components selected and materials used in complete accor-
dance 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

4i-KIR2 MTD EN
H
P
L
Bar code
(compressor side)
HANDLING PACKAGED UNITS
The unit should always be handled by qualified personnel
using equipment adequate for the weight of the unit, in com-
pliance 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 weight of the unit is biased towards the compres-
sor side.
During transport, the unit should be kept in a vertical
position.
HEAT PUMP
REMOVING THE PACKAGING
The packaging must be removed by the operator using suit-
able 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.
Do not dispose of packaging materials in the environ-
ment or leave them within reach of children as they may
represent a hazard.
Envelope A located in the inside module contains:
• user manual;
• installation - user - maintenance manual
Envelope B located in the outside module contains:
• Condensate drain elbow fitting
• CE declaration
Make sure the components listed above are not lost or mis-
placed.
The installation - user - maintenance manual is an
integral part of the unit and should therefore be read and
kept carefully.
B
A
i-KIR2 Dimensions 0011m 0031m 0061m
Dimension L mm 980 1040 1120
Dimension P mm 425 555 470
Dimension H mm 740 945 1610
Gross weight Kg 55 80 132
VISUAL INSPECTION
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.
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.
STORING THE UNITS
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.
The packaging should not be removed until the unit is
located in the installation site.
RECEIVING AND HANDLING THE PRODUCT I A

5EN i-KIR2 MTD
RECEIVING AND HANDLING THE PRODUCT I A
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
UNIT IDENTIFICATION U I A
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.
If service is required, the following information must be pro-
vided to the service centre:
Model, serial number, year of production.
Installation and maintenance operations are much more
difficult if the identification plates or anything else need-
ed to clearly identify the product are tampered with,
removed or missing.
NOMENCLATURE
i-KIR2 0031m
Rating plate
with serial
number
Rating plate
with serial
number
i-KIR2 0061m
Rating plate
with serial
number
i-KIR2 0011m
i-KIR2 MTD 0011 m
Power supply voltage:
m = 230V/50Hz/1ph
size
Model
The heat pump can be identified from:
PACKAGING LABEL
Describes the product identification data
Packaging
label

6i-KIR2 MTD EN
VERSIONS AVAILABLE
i-KIR2 MTD reverse-cycle air/water
heat pump with DC inverter-driven
compressors, domestic hot water
production, axial-flow fans and hydronic unit.
The remote controller is required for correct heat pump
operation, supplied separately.
PCB (Terminal)
Air vent valve
Terminal block
Pump
Compressor
Safety valve
PCB (Main)
DESCRIPTION OF STANDARD UNIT I A
These air cooled reverse-cycle chillers with axial-flow fans
operate with R410A refrigerant fluid and are suitable for out-
door installation.
The units are CE marked, as established by the EU direc-
tives, including the latest amendments, and the correspond-
ing approximated national legislation.
They are factory tested and on site installation is limited to
water and electrical connections.
Air vent valve
Terminal block
Pump
Compressor
Safety valve
PCB (Main)
PCB (Terminal)
PCB (Terminal)
i-KIR2 0011m
i-KIR2 0031m
PCB (Terminal)
Air vent valve
Compressor
Pump
Terminal block
Safety valve
PCB (Main)
i-KIR2 0061m

DIMENSIONAL DRAWINGS I
7EN i-KIR2 MTD
86616
850 21
M1
M1
25 330 38
480173
155540155
7570
357
Water outlet
Water inlet
Water
inlet
1” 1/4
Water
outlet
1” 1/4
327
57
388 54
M3/4
30015,3 42
825 73
16 659
580 122,5122,5
43
Water
inlet
Water
outlet
Anchoring foot
i-KIR2 0011m
i-KIR2 0031m
i-KIR2 0061m

MINIMUM CLEARANCES I
8i-KIR2 MTD EN
More than
300mm
More than
600mm
More than
100mm
More than
100mm
More than
600mm
More than
600mm
More than
100mm
More than
100mm
More than
600mm
More than
300mm
More than
600mm
More than
100mm
More than
100mm
More than
600mm
i-KIR2 0011m i-KIR2 0061mi-KIR2 0031m
HEAT PUMP INSTALLATION I A
POSITIONING
• Before handling the unit, check the capacity of the lift
equipment used, respecting the instructions on the pack-
aging.
• 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 position-
ing 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 ade-
quately 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.
• If the outside air temperature is less than 0°C, the conden-
sate 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
CHOICE OF INSTALLATION SITE
Before installing the unit, agree with the customer the site
where it will be installed, taking the following points into con-
sideration:
• 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 cir-
culate.
• 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.

9EN i-KIR2 MTD
water inlet
(M 1”)
water outlet
(M 1”)
173 480
70 75
388 54
43 57
water inlet
(M 3/4”)
water outlet
(M 3/4”)
Water connection dimensions
water outlet
(M 1” 1/4)
185 680
80 80
water inlet
(M 1” 1/4)
WATER CONNECTIONS I A
The choice and installation of components is the responsibil-
ity 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.
Required components
The following components must be installed in the
water circuit:
1. A flow switch (inlet). The flow switch must be cali-
brated by the installer to a value equal to 70% of rat-
ed flow (obligatory).
2. An intake filter must be installed as close as possi-
ble to the evaporator and positioned to allow easy
access for routine maintenance.
Recommended components
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. Install a suitably-sized expansion vessel based on sys-
tem water content and expected operating temperature.
Failure to install the flow switches will mean the heat exchang-
ers are not protected in the event of no flow of liquid. The Man-
ufacturer cannot be held liable for any damage to the unit
and/or the system following the failure to install these devices
or the filter.
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.
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 oper-
ation. The water content of the unit must be such as to avoid
disturbing operation of the refrigerant circuits.
i-KIR2 0011m
i-KIR2 0031m
i-KIR2 0061m

10 i-KIR2 MTD EN
WATER CONNECTIONS I A
Risk of freezing
The unit must be prevented from freezing at outside air tem-
peratures around 0°C.
1. use suitable percentages of antifreeze (see “Ethylene
glycol solutions”)
2. protect the piping with heating sheaths,
If the unit is not operated for an extended period of time the
system should be emptied, making sure no water remains in
the lowest points of the system and no valves are closed
that may stop water from flowing out.
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 fea-
tured.
The antifreeze used must be corrosion inhibited and com-
patible with the water circuit components.
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
Ethylene glycol solutions
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 sys-
tem connected to the return line and a drain valve in the
lowest part of the system.
Systems filled with antifreeze or subject to special leg-
islative requirements must be installed with low-loss
headers.
0 -5 -10 -15 -20 -25
Freezing point (°C)
Percentage of ethylene glycol by weight
cPf: cooling capacity correction factor
cQ: flow rate correction factor
cdp: pressure drop correction factor
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.
P 6-8
Electrical conductivity less than 200 mV/cm (25°C)
Chlorine ions less than 50 ppm
Sulphuric acid ions less than 50 ppm
Total iron less than 0.3 ppm
Alkalinity M less than 50 ppm
Total hardness less than 50 ppm
Sulphur ions none
Ammonia ions none
Silicon ions less than 30 ppm
f1: capacity correction factor
fk1: compressor power input correction factor
fx1: total power input correction factor
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 perfor-
mance tables by the coefficient given in the following table.
4,4 x 10-5
0,86 x 10-4
1,72 x10-4
-
0,96
0,93
-
0,99
0,98
-
0,99
0,98
Fouling factors
(m2°C/W) f1
Evaporator
fk1 fx1
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

11EN i-KIR2 MTD
Factory connections Installer connections
2
11
11
12
12 UTILITY
RETURN
UTILITY
OUTLET
8713
3
T
6
13
13
T
6
F
5
4
2
10
1
1
9
Utility water circuit connection diagram
1 Pressure gauge
2 Vibration damper joint
3 Shut off valve
4 Calibrating valve
5 Flow switch (obligatory)
6 Thermometer
7 Pump
8 Safety valve
9 Expansion vessel
10 Wire mesh filter
11 Temperature sensor
12 Unit fill/drain valve
13 System vent
WATER CONNECTIONS I A
Water content in the system
The minimum system water content must be guaranteed at
all times.
Safety valve calibration
Size 0011 0031 0061
Minimum water content l 26 26 60
Size 0011 0031 0061
Safety valve bar 3 3 3

12 i-KIR2 MTD EN
Condensate drain
The unit is fitted with condensate pan; this must be connect-
ed 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 conden-
sate by pouring water into the pan.
• If necessary, suitably insulate the condensate drain hose.
• Condensate drainage must not cause problems to objects
or people.
If the outside air temperature is less than 0°C, the conden-
sate drained from the collection pan may freeze.
The unit must be supported on a suitable structure or brack-
ets to keep it off the ground, with a frost protection heater fit-
ted on the drain line.
WATER CONNECTIONS I A
Condensate
drain elbow fitting
Hose
FILLING THE SYSTEM
- Before starting to fill, place the unit mains
switch QF1 in the OFF position.
- Before filling, check that the system drain
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.
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.
ON
OFF
EMPTYING THE SYSTEM
- 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°).
ON
OFF

13EN i-KIR2 MTD
ELECTRICAL CONNECTIONS I A
The heat pumps must be installed downstream of a group-
operated switch (QF1, see wiring diagram) on the mains
power supply line, as required by the standards in force in
the country where the unit is installed. This switch must be
installed by authorised personnel.
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 ade-
quate for the power ratings indicated in the electrical spec-
ifications 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 installa-
tion work (plumbing and electrical) has been completed.
All electrical connections must be carried out by quali-
fied 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. 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 con-
cerned.
A thermal overload switch and a lockable mains dis-
connect switch, in compliance with the CEI-EN stan-
dards (contact opening of at least 3mm), with ade-
quate 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.
The maximum impedance allowed by the unit (Zmax) is
0.354Ω for model i-KIR2 0031 and 0.33Ω for model i-
KIR2 0061.
The unit can be connected if the mains power supply
impedance is ≤0.354Ω for model i-KIR2 0031 and
≤0.33Ω for model i-KIR2 0061.
Do not use water pipes to earth the unit.
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 appli-
ances.
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.
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 illus-
trated 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.
(3) Use the cables specified, connect them securely and in
such a way that they don’t exert pressure on the termi-
nals.
(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.
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.
crimped
cable end
Power supply
terminal block
Remote contact
terminal block
10mm
sleeve sleeve
crimped
cable end
Screw with special washer Screw with special washer
Crimp-on terminal
Cable
Crimp-on terminal
Terminal blocks
Cable
Size
Power supply cable
(mm2)
Swotch rating
(A)
MAX. MIN.
0011m 2,0 1,5 16
0031m 4,0 3,5 20
0061m 5,5 4,0 32

14 i-KIR2 MTD EN
ELECTRICAL CONNECTIONS I A
Strip the end of the connection cables according to the mea-
surements shown in the following drawing.
WARNING
The connection cable must be stripped along a 10 mm sec-
tion. 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.
10 mm 30 mm
Residual
current
circuit
breaker
Internal electronic module
Power supply
Electrical data at maximum conditions allowed (full load)
Model Power supply Total Fan Pump Main board fuses (250V)
Remote contact
board fuses
(250V)
F.L.A. F.L.I. S.A. F.L.I. F.L.I. CF1 CF2 CF3 CF4 CF5 CF6 CF7 CF1
i-KIR2 (V-ph-Hz) (A) (kW) (A) (kW) (kW) (A) (A) (A) (A) (A) (A) (A) (A)
0011m 230-1-50 11,2 2,55 7,8 0,30 0,12 15
(6x30)
T3.15
(5x20)
3
(4.6x16)
3
(4.6x16) N/A 15 (6x30) N/A T10 (5x20)
0031m 230-1-50 17,5 3,98 10,2 0,10 0,17 25
(6x30)
T3.15
(5x20)
3
(4.6x16)
3
(4.6x16) N/A 25 (6x30)
T3.15
(5x20)
T10
(5x20)
0061m 230-1-50 25,3 5,76 17,8 0,20 0,17 30
(6x30)
T5
(5x20)
3
(5x20) N/A 3 (5x20)
T3.15
(5x20)
T3.15
(5x20)
T10
(5x20)
Maximum values for sizing the protection switches and power supply cables.
F.L.A. Maximum current input
F.L.I. Maximum power input
S.A. Start-up current
WIRING DIAGRAMS I A
BL
GR
OR
Y
COLOR OF WIRE
: BLACK
: WHITE
: RED
: GREEN
: BROWN
B
W
R
G
BR
: BLUE
: GRAY
: ORANGE
: YELLOW
GR
GR
COMPRESSOR
U
(R)
V
(S)
W
(T)
R
BL
R
B
WW
BB
BB
W
B
W(T)
V(S)
U(R)
9
8
7
OR
Y
REACTOR
FUSE CF2
250V
T3.15A
FUSE CF7
250V
T3.15A
18
MOTOR
(FAN)
PUMP
17
EXP.V.
23
34 33
28
32
31 10 11
PCB
(MAIN)
SENSOR(TEMP., SUCTION)
SENSOR(TEMP., DEFROST)
SENSOR(TEMP., DISCHARGE)
SENSOR(TEMP., OUTDOOR)
SENSOR(TEMP., OUTGOING)
4 WAY V.
DEFROST HEATER
SENSOR(TEMP., RETURN)
B
W
3
4
2
1
6
8
6
4
ON
OFF
TERMINAL BLOCK
GR
BL
W
R
W
B
B
B
G/Y
BL YB
R
G/Y
WN
LPOWER
1
2
3
PCB
(CONTROLLER)
PCB
(TERMINAL)
7
3
4
5
TRANSFORMER
2
1
Remote
Controller
1
2
3
4
5
6
7
17
18
19
20
21
22
23
Humidity
Sensor
COM
DHW Remote
Contact
ON/OFF
or
EHS Alarm
GND
24VAC
COM
Control
DHW
T.probe
OUTDOOR
T.probe
BUFFER
T.probe
Mix water
T.probe
3-way
mixing
valve
RS485
+
-
Dehumidifier
Alarm
Pump1
Pump2
Neutral
N.C.
Neutral
EHS
Phase
Signal
3-way
valve
8
9
10
11
12
13
14
Dual Set
Point
Control
Heating
Cooling
mode
Flow
switch
Night
mode
Low
tariff
RS485
GND
45
46
47
48
49
50
31
32
24
25
26
27
28
29
30
15
16
N
41
42
43
44
51
52
Electric
heater
RESET SW. PUMP SW.
RAM CLEAR
EEPROM
DIP SW.
FUSE CF1
(250V T10A)
Heating
Cooling
mode
output
i-KIR2 0011m

15EN i-KIR2 MTD
WIRING DIAGRAMS I A
BL
GR
OR
Y
COLOR OF WIRE
: BLACK
: WHITE
: RED
: GREEN
: BLUE
: GRAY
: ORANGE
: YELLOW
GR
GR
COMPRESSOR
R
BL
R
B
WW
BB
BB
W
B
W(T)
V(S)
U(R)
9
8
7
OR
Y
REACTOR
FUSE CF2
250V
T3.15A
FUSE CF7
250V
T3.15A
18
MOTOR
(FAN)
PUMP
17
EXP.V.
23
34 33
28
32
31 10 11
PCB
(MAIN)
SENSOR(TEMP., SUCTION)
SENSOR(TEMP., DEFROST)
SENSOR(TEMP., DISCHARGE)
SENSOR(TEMP., OUTDOOR)
SENSOR(TEMP., OUTGOING)
4 WAY V.
DEFROST HEATER
SENSOR(TEMP., RETURN)
B
W
3
4
2
1
6
8
6
4
ON
OFF
TERMINAL BLOCK
GR
BL
W
R
W
B
B
B
G/Y
BL YB
R
G/Y
WN
LPOWER
1
2
3
PCB
(CONTROLLER)
PCB
(TERMINAL)
7
3
4
5
TRANSFORMER
2
1
Remote
Controller
1
2
3
4
5
6
7
17
18
19
20
21
22
23
Humidity
Sensor
COM
DHW Remote
Contact
ON/OFF
or
EHS Alarm
GND
24VAC
COM
Control
DHW
T.probe
OUTDOOR
T.probe
BUFFER
T.probe
Mix water
T.probe
3-way
mixing
valve
RS485
+
-
Dehumidifier
Alarm
Pump1
Pump2
Neutral
N.C.
Neutral
EHS
Phase
Signal
3-way
valve
8
9
10
11
12
13
14
Dual Set
Point
Control
Heating
Cooling
mode
Flow
switch
Night
mode
Low
tariff
RS485
GND
45
46
47
48
49
50
31
32
24
25
26
27
28
29
30
15
16
N
41
42
43
44
51
52
Electric
heater
RESET SW. PUMP SW.
RAM CLEAR
EEPROM
DIP SW.
FUSE CF1
(250V T10A)
Heating
Cooling
mode
output
U
(R)
V
(S)
W
(T)
i-KIR2 0031m
BL
GR
OR
Y
COLOR OF WIRE
: BLACK
: WHITE
: RED
: GREEN
: BROWN
B
W
R
G
BR
: BLUE
: GRAY
: ORANGE
: YELLOW
PCB
(MAIN)
H.P.SW.
EXP.V.
4 WAY V.
DEFROST HEATER
SENSOR
(TEMP.,SUCTION)
SENSOR
(TEMP.,DISCHARGE)
28
25
21
23
19
13 14
8
11
6
4
22
29
89
MOTOR
(FAN)
MOTOR
(FAN)
upper
lower
SENSOR
(TEMP.,DEFROST)
ON
OFF
PUMP
UVW
WVU
RWB
OR
Y
Y
OR
COMPRESSOR
OHR
TERMINAL BLOCK
REACTORREACTOR
FUSE CF2
(250V T5A) GR
GR
B
BL
3
2
1
FUSE CF6
(250V T3.15A)
FUSE CF7
(250V T3.15A)
B
B
B
B
BL
W
B
W
R
W
B
B
B
G/Y
BYBL
R
G/Y
WN
LPOWER
1
2
3
PCB
(CONTROLLER)
PCB
(TERMINAL)
7
3
4
4
5
TRANSFORMER
2
1
Remote
Controller
1
2
3
4
5
6
7
17
18
19
20
21
22
23
Humidity
Sensor
COM
DHW Remote
Contact
ON/OFF
or
EHS Alarm
GND
24VAC
COM
Control
DHW
T.probe
OUTDOOR
T.probe
BUFFER
T.probe
Mix water
T.probe
3-way
mixing
valve
RS485 +
-
Dehumidifier
Alarm
Pump1
Pump2
Neutral
N.C.
Neutral
EHS
Heating
Cooling
mode
output
Phase
Signal
3-way
valve
8
9
10
11
12
13
14
Dual Set
Point
Control
Heating
Cooling
mode
Flow
switch
Night
mode
Low
tariff
RS485
GND
45
46
47
48
49
50
31
32
24
25
26
27
28
29
30
15
16
N
41
42
43
44
51
52
Electric
heater
RESET SW. PUMP SW.RAM CLEAR
EEPROM
DIP SW.
FUSE CF1
(250V T10A)
R
SENSOR
(TEMP., OUTDOOR)
SENSOR
(TEMP., OUTGOING)
SENSOR
(TEMP., RETURN)
R
BW
W
B
i-KIR2 0061m

16 i-KIR2 MTD EN
REMOTE CONTACT TERMINAL BOARD I A
ON
OFF
PCB
(TERMINAL)
3
4
2
1
Remote
Controller
1
2
3
4
5
6
7
17
18
19
20
21
22
23
Humidity
Sensor
COM
DHW Remote
Contact
ON/OFF
or
EHS Alarm
GND
24VAC
COM
Control
DHW
T.probe
OUTDOOR
T.probe
BUFFER
T.probe
Mix water
T.probe
3-way
mixing
valve
RS485
+
-
Dehumidifier
Alarm
Pump1
Pump2
Neutral
N.C.
Neutral
EHS
Heating
Cooling
mode
output
Phase
Signal
3-way
valve
8
9
10
11
12
13
14
Dual Set
Point
Control
Heating
Cooling
mode
Flow
switch
Night
mode
Low
tariff
RS485
GND
45
46
47
48
49
50
31
32
24
25
26
27
28
29
30
15
16
N
41
42
43
44
51
52
Electric
heater
Remote contact terminal board Table of analogue and digital inputs/outputs
Serial connections
Terminal Function Analogue Input
1 - 2 - 3 Remote Controller 1=S1, 2= S2, 3= GND
Wires length is maximum
100m with Ø1mm
shielded cables.
Analogue/Digital INPUTS
Analogue/Digital OUTPUTS
Terminal Function Analogue Output DigitalOutput
4 - 5 - 6 3 -way mixing valve 6=0-10V DC (control) 4-5 =24V AC
N Neutral 1ph 230V, 1ANeutral
41 - 42 EHS (External heat source for space heating)
1ph 230V, 1A
(in case of coil relay
40mA)
43 - 44 Heating / Cooling mode output
1ph 230V, 1A
(in case of coil relay
40mA)
45 Dehumidifier
1ph 230V, 1A
(in case of coil relay
40mA)
46
Electric heater for DHW
or
Backup Heater
1ph 230V, 1A
(in case of coil relay
40mA)
47
Alarm (Configurable output)
- Alarm
- Ambient temperature reached
1ph 230V, 1A
(in case of coil relay
40mA)
48 Pump1 (1st Additional Water Pump)
1ph 230V, 1A
(in case of coil relay
40mA)
49 Pump2 (2nd Additionalwater pump)
1ph 230V, 1A
(in case of coil relay
40mA)
50 - 51-52 DHW 3-way valve
1ph 230V, 1A
50= Neutral , 51 =Phase
52 =Signal
Terminal Function Analogue Input Digital Input
7 – 8 DHW temperature probe (option)
9 - 10 Outdoor air temperature probe (option)
11 – 12 BUFFER temperature probe (option)
13 - 14 Mix Water temperature probe (option)
17 - 18 Humidity Sensor (option) 0-10V DC
18 - 19 DHW Remote contact Voltage free contact
12V10mA
20 - 21
Configurable input:
-ON/OFF remote contact
-EHS Alarm
Voltage free contact
12V10mA
22 - 23 Dual Set Point Control Voltage free contact
12V10mA
24 - 25 Heating/Cooling mode remote contact Voltage free contact
12V10mA
26 - 27 Flow switch Voltage free contact
12V10mA
28 - 29 Night mode Voltage free contact
12V10mA
30 - 31 Low tariff Voltage free contact
12V10mA

17EN i-KIR2 MTD
U I A
MAINS POWER SUPPLY CONNECTIONS I A
- Before connecting the unit to the mains power supply,
make sure that the mains power supply switch QF1 is
open (“OFF”).
- Remove the protective cover from the heat pump terminal
block by unscrewing the fastening screw.
- Connect the power supply to the heat pump terminals as
shown in drawing 3.
- 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.
- For all mains power connections, move the main switch
QF1 (outside the appliance) to “ON”.
Wiring cover
Screw
2
Power cable (A)
230V-1Ph-50hZ
3
2
1
L
POWERPOWER
N
A
Residual
current
circuit
breaker
QF1
Power supply
3
ON
OFF
1

18 i-KIR2 MTD EN
Outside air temperature probe connection
(Outdoor T.probe)
The outside air temperature probe, supplied as an accessory, is
used in cases where the air temperature probe on the unit can-
not provide a correct reading of the outside air temperature.
The outside air probe allows the system water temperature set
point to be compensated during heating or cooling operation.
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.
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.
Below is a list of the electrical connections that can be performed by the installer using the terminals on the remote contact
board. The maximum length of probe cables is 100 m for 1 mm2cables, and 50 m for 0.5 mm2cables.
H
H
2
/
1
N
N-W
m5,2nim
The remote outside air temperature probe must be enabled
by setting the following parameter.
INSTALLER CONNECTIONS I A
Remote controller connection (Remote Controller)
Installation instructions
The remote controller is fitted with an air temperature sensor
for controlling room temperature. In this case, the remote
controller must be installed in a reference position, as
described below:
• around 1.5 metres from the floor, in a part of the room that
allows the sensor to accurately measure the room temper-
ature;
• 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 discon-
nects from the power supply and consequently is no
longer operating.
If the heat pump is not used for room temperature control,
the remote controller can also be installed in an equipment
room, as long as this is protected against the weather.
min.
10 cm
12
910
Technical data
Sensing element NTC 10Kohm ± 1% (25°C)
Degree of protection IP65
Perm. ambient / carriage temperatur e -50°C...+100°C
Measuring range -50°C...+100°C
Materials PA 15% GK, Colour RAL 9010
Description Menu Parameter
no. Default Value to be set UOM
Enable remote outside
air temperature probe
0 = Disabled
1 = Enabled
51 09 0 1 -

19EN i-KIR2 MTD
INSTALLER CONNECTIONS
A B
C
1 2 3
Shielded cable 2x1mmq
Maximum distance 100 m
Installation procedure
Assembly
• Detach the support Afrom the remote controller B.
• Fasten the support Ato the wall using the holes provided.
• Make the electrical connections as shown on the wiring
diagram.
• Attach the remote controller Ato the tabs Con the support
B.
I A
120
120
17 107
108
67
12,4
68
10,2
30,5 23 23
3-way valve for domestic hot water production
(3-way valve)
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/heat-
ing demand is not satisfied. Wire the three-way valve sup-
plied as an accessory by Manufacturer following the instruc-
tions 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 domes-
tic hot water production should have the following character-
istics:
• 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 20kPa.
If three-way valves with a travel time greater than 10 sec-
onds are used, modify the setting of parameter 4511.
50 51 52
Yellow/Green
Red
Blue
Green
Black
Brown
Auxiliary contact
Description Parameter
no. Default Value to be set UOM
Three-way valve travel
time for domestic hot
water production
4511 12
Set the travel time
for valves not
supplied by the
heat pump
manufacturer
sec.

20 i-KIR2 MTD EN
INSTALLER CONNECTIONS I A
DHW storage electric heater (DHW T.Probe)
Domestic hot water temperature inside the storage tank is
measured using the DHW T. Probe, supplied as an accesso-
ry.
78
Water storage tank temperature probe
(Buffer T. probe)
The water storage tank temperature probe (Buffer T. probe),
supplied as an accessory, must be enabled by setting para-
meter 5111. The heat pump works so as to reach the water
temperature set point based on the value measured by the
“Buffer T. probe”.
The storage tank probe is required if needing to manage an
outlet electric heater (Backup heater) or an additional sys-
tem heat source (EHS).
Low temperature system management (zone 1)
The controller can manage a low temperature zone for radi-
ant panel systems.
The unit can be configured to manage a modulating mixing
valve with 0-10 V control, a circulator pump and a manifold
temperature probe.
11 12
0-10V
Heat pump
outlet
Heat pump
return
M
+
-
N
N
L
230V 50Hz
1
23
4
6
5
1 Storage tank
2 Mixing valve, 0-10 V 24 VAC
3 Radiant panel circuit pump
4 Radiant panel outlet probe
5 Safety thermostat
6 Zone 1 remote controller (Master)
54 6 48 13 14 1 2 3
24VAC
24VAC
Description Menu Parameter
no. Default Value to be set UOM
Mixing valve water tem-
perature probe for low
temperature zone 1 (Mix
water T. probe):
0 = Disabled
1 = Enabled
51 13 0 1 -
Enable zone 1 pump
0 = Disabled
1 = Zone 1 pump enabled
51 48 0 1 -
Enable mixing valve:
0 = Disabled
1 = Enabled
51 04 0 1 -
Mixing valve integral time 45 02 60 10sec.
Maximum radiant system
water temperature limit 45 03 50 0,5°C
The operating modes are shown in the chapter on “Control
and operating characteristics”.
Description Menu Parameter
no. Default Value to be set UOM
Water storage tank tem-
perature probe (Buffer T.
probe):
0 = Disabled
1 = Enabled
51 11 0 1 -
Description Menu Parameter
no. Default Value to be set UOM
DHW storage tank water
temperature probe (DHW
T. probe):
0 = Disabled
1 = Enabled
51 07 0 1 -