CLIMAVENETA i-KI MTD Operating instructions

INSTALLATION - USER - MAINTENANCE MANUAL
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
EN
i-KI MTD / i-EM2
i-KIR MTD / i-EMR2
0011m ÷ 0061m

2i-KI MTD / i-KIR MTD EN 10/2010
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 6
Description of standard unit 7
Dimensioned drawings 8
Minimum clearances 9
Heat pump installation 10
Inside module installation 11
Water connections 12
Electrical connections 16
Inside module electrical panel layout 17
Mains power supply connections 18
Installer connections to be performed 20
on the inside module
General technical data 31
Operating limits 32
Checking and starting up the unit 34
Description of room controller buttons and 36
display
Operation and functions of the room controller 37
Control and operating characteristics 46
System configuration 51
Maintenance and service 57
Shutting down for long periods 62
Routine maintenance 62
Special maintenance 63
Disposal 63
Useful information 63
List of parameters 64
Installer operations CHECKLIST 66
U I A I A
AI
A
A
A
A
AIU
A
A
A
A
A
AIU
AIU
AIU
U
U
U
I A
I A
I
I
I
A
A
I A
I
I
I A
A
I
I
A
A
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I A
I A
U
I
A

3EN 10/2010 i-KI MTD / i-KIR 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 6, 7, 9, 10, 11, 12, 13, 21, 22 on the inside
module may be live even when the unit has been dis-
connected. 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-KI MTD / i-KIR MTD EN 10/2010
H
P
L
Bar code
(compressor side)
B
PL
H
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.
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.
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
1HEAT PUMP
2INSIDE MODULE
i-KI/i-KIR Dimensions 0011m 0031m 0061m
Dimension L mm 985 1040 1120
Dimension P mm 425 550 470
Dimension H mm 865 940 1610
Gross weight Kg 62 91 136
i-EM2/i-EMR2 Dimensions 0011m÷0061m
Dimension L mm 430
Dimension P mm 350
Dimension H mm 180
Gross weight Kg 6,3

5EN 10/2010 i-KI MTD / i-KIR MTD
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 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
Envelope A 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.
RECEIVING AND HANDLING THE PRODUCT I A
A
3
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

6i-KI MTD / i-KIR MTD EN 10/2010
UNIT IDENTIFICATION U I A
The heat pump can be identified from:
PACKAGING LABEL
Describes the product identification data
Packaging
label
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.
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.
Rating plate
with serial number
i-KI / i-KIR 0031m
Rating plate
with serial
number
i-KI / i-KIR 0011m
NOMENCLATURE
i-KI / i-KIR MTD 0011 m
Power supply voltage:
m = 230V/50Hz/1ph
size
Model
Rating plate
with serial number
i-KI / i-KIR 0061m

7EN 10/2010 i-KI MTD / i-KIR MTD
Safety valve
Air vent valve
Air vent
valve
Pressure gauge
HEAT PUMP
i-KI / i-KIR 0031m
Terminal block
Board with display
Heat exchanger
Expansion
vessel
Compressor
Water inlet Water outlet
Water pump
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.
Board
Expansion vessel
Board with display
Safety valve
Air vent valve
Pressure gauge
Terminal block
Water pump
Compressor
HEAT PUMP
i-KI / i-KIR 0011m
INSIDE MODULE
i-EM2 / i-EMR2
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 mod-
ule to be installed inside the home’s boiler room. The i-EM2
module, for heating only units, and i-EMR2, for reverse-
cycle 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 tem-
perature set point compensation.
Further information and technical specifications are provided
in the manual supplied with the electronic module.
HEAT PUMP
i-KI / i-KIR 0061m
Main board
Board with display
Terminal block
Pressure gauge
Safety valve
Water pump
Compressor
Air vent valve

8i-KI MTD / i-KIR MTD EN 10/2010
U I A
DIMENSIONAL DRAWINGS I
327
57
388 54
R3/4(20A)
30015,3 42
825 73
16 771
580 122,5122,5
43
Water
inlet
Water
outlet
Anchoring foot
6
411
333
75
HEAT PUMP i-KI / i-KIR 0011m INSIDE MODULE i-EM2 / i-EMR2
850
881.5
335 522.5
110180
357
155 540 155
6090
275
330 116
Anchoring foot
Water
inlet
Water
outlet
HEAT PUMP i-KI / i-KIR 0031m
1418
205 205590
241000
657 120
6770
29
1313 330
356
Water
inlet
1” 1/4
Water
outlet
1” 1/4
HEAT PUMP i-KI / i-KIR 0061m

9EN 10/2010 i-KI MTD / i-KIR MTD
U I A
MINIMUM CLEARANCES I
Wiring cover
More than
600 mm
More than
100 mm
More than
100 mm
More than
300 mm
More than
600 mm
HEAT PUMP 0011m
More than 600 mm
More than 100 mm
More than 100 mm
More than 600 mm
More than 300 mm
HEAT PUMP 0061m
Wiring cover
More than
600 mm
More than
100 mm
More than
600 mm
More than
120 mm
More than
300 mm
HEAT PUMP 0031m
100 100
400
INSIDE MODULE i-EM2 / i-EMR2

10 i-KI MTD / i-KIR MTD EN 10/2010
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.

11EN 10/2010 i-KI MTD / i-KIR MTD
HEAT PUMP INSTALLATION I A
POSITIONING
• See the figure on the side for the points used to fasten the
module (A) to the vertical wall and corresponding dis-
tances.
• Fix the unit, making sure there is easy access.
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:
• 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 DIMEN-
SIONED DRAWINGS to allow room for maintenance oper-
ations.
• The maximum length of the connection cable between i-
KI/i-KIR and the i-EM2/i-EMR inside module is 30 m, mak-
ing this also the maximum distance between the two mod-
ules.
If installing multiple units the clearances must be doubled.
"PE"
"L"
"N" "6" "60"
A
A

12 i-KI MTD / i-KIR MTD EN 10/2010
WATER CONNECTIONS I A
(1”)
water return
(1”)
water outlet
180 110
60 90
388 54
57 43
(3/4”)
water
return
(3/4”)
water
outlet
Water connection dimensions
0011m
657 120
(1” 1/4)
water outlet
(1” 1/4)
water return
67 70
0061m
0031m
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. 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 tem-
perature, otherwise install an additional expansion ves-
sel.
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 fail-
ure 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 check-
ing the operation of the flow switches installed.
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 oper-
ation. The water content of the unit must be such as to avoid
disturbing operation of the refrigerant circuits.

13EN 10/2010 i-KI MTD / i-KIR MTD
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,
In caso di unità ferma per un lungo periodo di tempo si con-
siglia 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.
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.
PH 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
Probe socket fittings
- Remove the protective caps from the water connections
- Install the probe socket fittings supplied on the system cir-
cuit 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.
Warnings: use conductive paste to improve the tempera-
ture reading.
Fasten the probes placed in the probe sockets to the fittings,
using suitable ties.
Water outlet connection
Probe socket
Water return connection

14 i-KI MTD / i-KIR MTD EN 10/2010
Factory connections Installer connections
1
2
11
11
12
12 UTILITY
RETURN
UTILITY
OUTLET
98713
3
T
6
13
13
T
6
F
5
4
2
10
1
1
9
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
Utility water circuit connection diagram
WATER CONNECTIONS I A
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
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 sys-
tem, hydronic terminal system and radiator system with fol-
lowing installation maximum water content *:
* expansion vessel pre-charged to 150 kPa (max 12 metre
height difference)
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)
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.
H
Water content in the system
The minimum system water content must be guaranteed at
all times.
Expansion vessel size
Safety valve calibration
Size
Radiant panel
system
Hydronic
terminal system
Radiator
system
Hot water at 35°C
and cold water
at 18°C
Hot water at
45°C cold water
at 7°C
Up to 60°C
0011m l 300 180 100
0031m l 400 240 135
0061m l 400 240 135
Size 0011 0031 0061
Minimum water content l 26 26 60
Size 0011 0031 0061
Expansion vessel l 6 8 8
Size 0011 0031 0061
Safety valve bar 3 3 3

15EN 10/2010 i-KI MTD / i-KIR MTD
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

16 i-KI MTD / i-KIR MTD EN 10/2010
ELECTRICAL CONNECTIONS I A
The heat pumps must be installed downstream of a main
switch (QF1, see wiring diagram), as required by the stan-
dards in force in the country where the unit is installed. Con-
nection to the mains power supply and the connection of the
flow switch to the corresponding terminals must be per-
formed by authorised personnel in compliance with the stan-
dards 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 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 (for three phase units,
the unbalance between the phases must not exceed 3%).
If these parameters are not respected, contact the elec-
tricity 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.
In the case of three phase units, ensure the phases
are connected correctly.
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.
Stripped wire: 10 mm
Crimp-on
terminal
Sleeve
Screw with special washer Screw with special washer
Crimp-on terminal
Cable
Crimp-on terminal
Terminal blocks
Cable
Size
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

17EN 10/2010 i-KI MTD / i-KIR MTD
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
INSIDE MODULE ELECTRICAL PANEL LAYOUT I A
INSTALLER TERMINAL BLOCK
UN
67910
11 12 13 21 22 25 26 2728 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 PE
FU5
KA1 KA6 KA7 KA8
TC1
A1
A3
FU6 FU7
FU5
FU6 FU7
Electrical data at maximum conditions allowed (full load)
Maximum values for sizing the pro-
tection switches and power supply
cables.
F.L.A. Maximum current input
F.L.I. Maximum power input
S.A. Start-up current
Size Power supply Fuses (5x20T 250V)
F.L.A. FU5 FU6 FU7
i-EM2 / i-EMR2 (V-Ph-Hz) (A) (A) (A) (A)
0011m÷0061m 230-1-50 6 4 1,25 0,5
Size Power supply Total
Fan Pump Fuses (5x20T 250V)
F.L.A. F.L.I. S.A. F.L.I. F.L.I. CF1 CF2 CF3 CF4 CF5 CF6 CF7
i-KI / i-KIR (V-ph-Hz) (A) (kW) (A) (kW) (kW) (A) (A) (A) (A) (A) (A) (A)
0011m 230-1-50 10,9 2,48 0,8 0,05 0,09 15 3,15 3 15 15 15 15
0031m 230-1-50 18,3 4,12 1,4 0,10 0,13 25 15 5 3,15 3,15 3,15 3,15
0061m 230-1-50 25,0 5,70 1,4 0,14 0,18 30 5 3 - 3 3,15 3,15

Wiring cover
Screw
18 i-KI MTD / i-KIR MTD EN 10/2010
MAINS POWER SUPPLY CONNECTIONS I A
- 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”).
- Remove the protective cover from the heat pump terminal
block by unscrewing the fastening screw.
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 commu-
nication cable to the inside module as shown in figure 4.
Power cable (A)
Connection cable to inside
electronic module (C)
3
2
1
L
POWERPOWER
NPE
A
C
UN 60
Residual
current circuit
breaker QF1
Power supply
4
2
- Remove the protective cover from the electrical panel on
the inside module by unscrewing the fastening screws and
removing the cover.
3
ON
OFF
1

19EN 10/2010 i-KI MTD / i-KIR MTD
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.
- 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”.
- 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.
3
2
1
L
POWERPOWER
NPE
C
UN 60
A
B
B
Power cable (B)
Power supply
Power supply
Residual
current
circuit
breaker
QF1
Residual
current
circuit
breaker
QF2
Power cable (A)
Connection cable to inside
electronic module (C)
5
MAINS POWER SUPPLY CONNECTIONS I A

20 i-KI MTD / i-KIR MTD EN 10/2010
Outside air probe (BT11) connection
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 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 mm2cables.
H
H
2
/
1
N
N-W
m5,2nim
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 fit-
tings 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.
Water outlet connection
Water return connection
Tie
Tie
BT2
BT1
56 57
58 59
INSTALLER CONNECTIONS TO BE PERFORMED ON THE INSIDE MODULE I A
12
45 46
BT11
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