Vaillant V 12-060 M2W User manual

For the installer
V 12-025 W
V 12-035 W
V 12-050 W
V 12-060 W
V 12-060 M2W
Installation Manual
Heat Pump Air-conditioner - climaVAIR
Split Type
EN

2
Contents
Split Type Installation Manual
Contents
1 Your Safety
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
1.1 Symbols used
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
1.2 Proper Use of the Unit
. . . . . . . . . . . . . . . . . . . . . . .
3
2 Extreme Operating Conditions
. . . . . . . . . . . . . .
3
3 Identification of the Unit
. . . . . . . . . . . . . . . . . .
3
4 Declaration of Conformity
. . . . . . . . . . . . . . . .
4
5
Description of the Unit
. . . . . . . . . . . . . . . . . . .
4
5.1 Indoor Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
5.2 Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.3
Infra red
Remote Controller
. . . . . . . . . . . . . . . . . . . 7
5.4
Refrigeration pipe
connections
. . . . . . . . . . . . . . . .
7
5.6 Technical Specifications
. . . . . . . . . . . . . . . . . . . . . . 8
6 Transport
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
0
7 Unpacking
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
0
8 Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
0
8.1 Qualification of the Installation Personnel
. . . . .
1
0
8.2 General precautions to be taken into account
before starting the installation
. . . . . . . . . . . . . . .
1
0
8.3 General Installation Diagram
. . . . . . . . . . . . . . . . . .
1
1
9 Installation of the Indoor Unit
. . . . . . . . . . . . .
1
2
9.1 Selecting the Indoor Unit Location
. . . . . . . . . . . . .
1
2
9.2 Fixing the mounting Plate
. . . . . . . . . . . . . . . . . . . .
1
2
9.3 Installation of the
pipe work
. . . . . . . . . . . . . . . . . .
1
2
9.3.1
Correct removal of condensate water
. . . . . . . . . .
1
2
9.3.2 Handling the refrigerant Pipes
. . . . . . . . . . . . . . . .
1
3
9.3.3
Correct installation of the condensate pipe work
1
3
9.3.4 Making Holes for the Pipes
. . . . . . . . . . . . . . . . . .
1
4
9.3.5
Correct installation of indoor unit refrigerant
pipe work
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
5
9.3.6 Installation of the Indoor Unit Body
. . . . . . . . . . . .
1
5
10 Installation of the Outdoor Unit
. . . . . . . . . . .
1
6
10.1
Selecting the Assembly Location
. . . . . . . . . . . . .
1
6
10.2 Planning the refrigerant Return
. . . . . . . . . . . . . .
1
6
10.3 Connection of the refrigerant Pipes
. . . . . . . . . . .
1
6
10.4 Connection of the
condensate drain pipe to
outdoor unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
7
11 Electric Wiring
. . . . . . . . . . . . . . . . . . . . . . . . . .
1
7
11.1 Safety Precautions
. . . . . . . . . . . . . . . . . . . . . . . . . . .
1
7
11.2 Remark with regard to Directive
2004/108/
CE
.
1
8
11.3
Electric Connection to the Indoor Unit
. . . . . . . .
1
8
11.4 Electric Connection to the Outdoor Unit
. . . . . . .20
11.5 Electrical Characteristics
. . . . . . . . . . . . . . . . . . . .
2
0
12 Preparation for Use
. . . . . . . . . . . . . . . . . . . . . .
2
1
12.1 Checking for leaks
. . . . . . . . . . . . . . . . . . . . . . . . . . .
2
1
12.2 Evacuating the Installation
. . . . . . . . . . . . . . . . . . .
2
2
12.3 Start Up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
3
12.4 Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
3
13
Error Codes
. . . . . . . . . . . . . . . . . . . . . . . . . . .
2
4
13.1
Error codes
:
V 12-025
/035/050/060 W
. . . . . . . .
2
4
13.2
Error codes
:
V 12-060 M2W
. . . . . . . . . . . . . . . . . .
2
5

Split Type Installation Manual
3
EN
1 Your Safety
1.1 Symbols used
Danger!
Immediate danger to life and limb.
Danger!
Danger of electric shock.
Warning
!
Potentially dangerous situation for the product
and the environment.
Note!
Useful information and indications.
1.2 Proper Use of the Unit
This unit has been designed and manufactured for the
sole purpose of comfort cooling and heating occupied
residential and commercial premises.. The use thereof
for other domestic or industrial purposes shall be the
exclusive responsibility of the persons specifying,
installing or using them in that way.
Prior to handling, installing, start up, using or
performing maintenance on the unit, the persons
assigned to perform these tasks should be familiar with
all the instructions and recommendations set forth in
the unit's installation manual.
Note!
Keep the manuals throughout the service life of
the unit.
Note!
The information relating to this unit is divided
between two manuals: installation manual and
user manual.
Note!
This equipment contains R-410A refrigerant. Do
not vent R-410A into atmosphere: R-410A, is a
fluorinated greenhouse gas, covered by Kyoto
Protocol, with a Global Warming Potential (GWP)
= 1975.
Note!
The refrigerant fluid contained in this
equipment must be properly recovered for
recycling, reclamation or destruction before
the final disposal of the equipment.
Note!
The relevant personnel performing any service or
maintenance operations involving the handling of
the refrigerant fluid must have the necessary
certification to comply with all local and
international regulations.
2 Extreme Operating Conditions
This unit has been designed to operate within the range
of temperatures indicated on Figure 2.1. Ensure that
these ranges are not exceeded.
CALEFACCIÓN
Fig. 2.1 Operating ranges of the unit.
Legend
D.B. Temperature measured by dry bulb
3 Identification of the Unit
This manual is valid for the Split system series. In order
to know the specific model of your unit please refer to
the unit nameplates.
The nameplates are located on the outdoor and indoor
units.
Your Safety 1
Extreme Operating Conditions 2
Identification of the Unit 3
Indoor
Outdoor
43ºC D.B.
C
OOLING
HEATING
43ºC D.B.
8ºC D.B.
16ºC D.B.
16ºC D.B.
32ºC D.B.
32ºC D.B.
-7ºC D.B.
32ºC D.B.

Split Type Installation Manual
4
4 Declaration of Conformity
The manufacturer declares that this unit has been
designed and constructed in compliance with the
standard in force with regard to obtaining the CE
Marking.
5 Description of the Unit
This unit is comprised of the following elements:
- Indoor unit.
- Outdoor unit.
- Remote controller.
- Connections and accessories.
Figure 5.2 shows the unit components.
Fig. 5.2 Unit components (SPLIT SYSTEM).
Legend
1 Indoor Unit
2 Outdoor Unit
3 Remote controller
4 Interconnecting pipework
5 Condensed water drainage connection
4 Declaration of Conformity
5 Description of the Unit

Split Type Installation Manual
5
EN
Description of the Unit 5
5.1 Indoor Unit
The indoor unit heats and cools air as it circulates it
around the room to be conditioned.
The dimensions and weights of the indoor unit are
shown on Figure 5.3 and Table 5.1, depending on the
model (please consult the model nameplate).
The dimensions are given in mm.
Fig. 5.3 Dimensions of the indoor unit.
Legend
H Height
L Length
D Depth
MODEL
H
L
D
kg
V 12-025 HWI
250
745
195
9
V 12-035 HWI
250
745
195
9
V 12-050 HWI
292
900
215
14
V 12-060 HWI
292
900
215
14
V 12-025 MHWI
280
800
190
10
V 12-035 MHWI
280
800
190
10
Table 5.1 Dimensions and weights of the indoor unit.

Split Type Installation Manual
6
5.2 Outdoor Unit
The outdoor unit ensures that the absorbed heat is
transferred and released to the outside from the room
during operation in cooling mode and that the heat
introduced into the room during operation in heat pump
mode is absorbed from the outside air.
The dimensions and weights of the outdoor unit are
shown on Figures 5.4, 5.5 and Table 5.2, depending on
the model (please consult the model nameplate).
The dimensions are given in mm.
Fig. 5.4 Dimensions of the outdoor unit. (MONO)
Legend
H Height
L Length
D Depth
A Length of valves
B Distance between valves
C Distance from the highest valve to the unit base
MODEL
H
L
D
A
B
C
I
J
kg
V 12-025 HWO
500
700
225
45
55
159,5
260
510
25
V 12-035 HWO
540
795
255
50
55
159,5
280
510
36
V 12-050 HWO
540
795
255
50
55
159,5
280
510
36
V 12-060 HWO
605
850
295
45
55
165
305
500
45
V 12-060 M2HWO
645
925
430
55
60
142
400
692
64
Table 5.2 Dimensions and weights of the outdoor unit.
5 Description of the Unit
Fig. 5.5 Dimensions of the outdoor unit. (MULTI).

Split Type Installation Manual
7
EN
5.3 Infra red Remote Controller
The infra-red remote control controls the settings and
functions of the unit. The control will only operate when
there is a line of sight to the indoor unit.
5.4 Refrigeration pipe connections
This outdoor unit has the following connections and shut
off valves:
- Gas (G) and liquid connections (L): they carry the
refrigerant agent between the outdoor and indoor
unit.
- Drain connections for condensate water (in the
outdoor and indoor unit): these allow the water
(condensed in the unit during normal operation) to be
properly discharged.
- Electric connections: these allow connection of a
mains power supply to the outdoor unit and supply
electric energy and control interface and control
connections between the units.
5.5 Supplied accessories
No.
Accessory
Quantity
Indoor Unit
1
Remote control
1
2
Batteries
2
3
Mounting plate
1
4
Drain Pipe
1
Outdoor Unit
1
Drain elbow
1
Table 5.3 Accessories supplied with the unit.
Description of the Unit 5

Split Type Installation Manual
8
5.6 Technical Specifications
Units
V 12-025 W
V 12-035 W
V 12-050 W
V 12-060 W
Indoor Unit
V 12-025 HWI
V 12-035 HWI
V 12-050 HWI
V 12-060 HWI
Outdoor Unit
V 12-025 HWO
V 12-035 HWO
V 12-050 HWO
V 12-060 HWO
Cooling Capacity
kW
2,86
3,40
5,40
6,70
Power input
kW
0,89
1,05
1,68
2,09
Operating current
A
3,90
4,40
6,80
9,20
Heating capacity
kW
2,95
3,79
6,05
7,05
Power input
kW
0,81
1,05
1,68
2,05
Operating current
A
3,40
4,60
6,90
8,70
Indoor Unit
Air Flow volume
m
3
/h
355/391/450
391/455/500
672/736/800
708/804/900
Sound Power level
dB(A)
45/52/56
45/52/56
47/54/59
52/52/56
Sound Pressure level
dB(A)
28/34/40
30/37/42
32/39/43
42/44/46
Dimensions (HxLxD)
mm
250x745x195
250x745x195
292x900x215
292x900x215
Net Weight
kg
9
9
14
14
Outdoor Unit
Air Flow volume
m
3
/h
1700
1700
2000
2400
Sound Power level
dB(A)
63
63
66
67
Sound Pressure level
dB(A)
50
50
53
54
Refrigerant
R410A
R410A
R410A
R410A
Refrigerant charge
gr
560
870
1500
1900
Expansion system
CAPILLARY
CAPILLARY
CAPILLARY
CAPILLARY
Dimensions (HxLxD)
mm
500x700x225
540x795x255
540x795x255
605x850x295
Dimensions Valves A/B/C
mm
45x55x159,5
50x55x159,5
50x55x159,5
45/55/165
Dimensions Installation I/J
mm
260x510
280x510
280x510
305/500
Net Weight
kg
25
36
39
45
Pipe Connections
Pipe conection diameter liq/gas
Inches
1/4 - 3/8
1/4 - 3/8
1/4-1/2
1/4-1/2
PM
bar
42
42
42
42
pm
bar
13
13
13
13
Maximum piping length
m
20
20
25
25
Max. height IU under OU
m
10
10
15
15
Max. height OU under IU
m
10
10
15
15
Chargeless length
m
7,5
7,5
7,5
7,5
Additional charge per metre
gr
28
28
40
50
Table 5.5 Technical specifications. (MONO).
5 Description of the Unit

Split Type Installation Manual
9
EN
Units
V 12-060 M2W
Indoor Unit 2
V 12-025 MHWI
Indoor Unit 1
V 12-035 MHWI
Outdoor Unit
V 12-060 M2HWO
Cooling Capacity
kW
6,55
Power input
kW
2,18
Operating current
A
8,9
Heating capacity
kW
6,95
Power input
kW
2,16
Operating current
A
8,60
Indoor Unit
Air Flow volume
m
3
/h
300/400/500
m
3
/h
300/400/500
Sound Power level
Indoor 1
dB(A)
45/52/56
Indoor 2
dB(A)
45/42/56
Sound Pressure level
Indoor 1
dB(A)
28/34/40
Indoor 2
dB(A)
28/34/40
Dimensions (HxLxD)
Indoor 1
mm
280x800x190
Indoor 2
mm
280x800x190
Net Weight
Indoor 1
kg
10
Indoor 2
kg
10
Outdoor Unit
Air Flow volume
m
3
/h
3050
Sound Power level
dB(A)
65
Sound Pressure level
dB(A)
52
Refrigerant
R410A
Refrigerant charge heat pump
gr
1000 & 1200
Expansion system
CAPILLARY
Dimensions (HxLxD)
mm
645x925x430
Dimensions Valves A/B/C
mm
55/60/142
Dimensions Installation I/J
mm
400/692
Net Weight
kg
64
Installation
Pipe conection diameter liq/gas Outdoor
Inches
1/4 - 3/8
Pipe conection diameter liq/gas Indoor
Inches
1/4 - 3/8
Inches
1/4 - 3/8
PM
bar
43
pm
bar
10
Max. L1+L2+(L3)
m
20 + 20
Max. L1
m
20
Max. height IU under OU
m
10
Max. height OU under IU
m
10
Chargeless length
m
7,5 - 7,5
Additional charge per metre
gr
25 - 25
Table 5.6 Technical specifications. (SPLIT SYSTEM).
Note!
As part of its policy for ongoing improvements of
its products, Vaillant reserves the right to modify
these specifications without prior notice.
Description of the Unit 5

Split Type Installation Manual
10
6 Transport
Danger of injury and physical damage!
During transport and unloading, the unit could
fall and injure anyone within the immediate
vicinity. To avoid this:
- Only use transport and lifting gear with
suitable load capacity for the unit weight.
- Use only the transport and lifting gear
correctly (consult the respective user
manuals).
- Use the slinging points provided for such a
purpose on the unit.
- Secure the unit correctly.
- Always use suitable personal protection
equipment (helmet, gloves, safety boots and
protective glasses).
7 Unpacking
Danger of injury and physical damage!
During unpacking you could get injured. To avoid
this:
- Use lifting gear with suitable load capacity
for the unit weight.
- Only use the transport and lifting gear
correctly (consult the respective user
manuals).
- Observe correct manual handling techniques.
- Use the slinging points provided for this
purpose on the unit.
- Always use suitable personal protection
equipment (helmet, gloves, safety boots and
protective glasses).
Unpack the unit and check that:
- All parts have been supplied with the system.
- All parts and accessories are in perfect condition.
If parts are damaged or missing please contact your
supplier immediately.
Warning
!
Protect the environment. Dispose of the
packaging following the local environmental
standards. Do not dispose of packaging
irresponsibly, recycle where possible.
8 Installation
8.1 Qualification of the Installation Personnel
Ensure that this unit is installed by suitable qualified
personnel.
All installers must hold a suitable safe handling of
refrigerants qualification.
8.2 General precautions to be taken into account
before starting the installation
Danger of injury and physical damage!
During unpacking you could get injured. To avoid
this:
- Only use lifting gear with suitable load
capacity for the unit weight.
- Use the transport and lifting gear correctly
(consult the respective user manuals).
- Use the slinging points provided for this
purpose on the unit.
- Always use suitable personal protection
equipment (helmet, gloves, safety boots and
protective glasses).
Danger of injury and physical damage!
The unit should be installed in accordance with
the Regulations and Standards for refrigeration,
electrical and mechanical installation pertaining
to the country in which the installation is being
undertaken.
Danger!
Danger of electric shock.
All appliances must be earthed. Connect the
earth cable to the right line (not to the gas
pipe, water pipe, lightning conductor or
telephone line).
Danger!
Danger of electric shock.
Ensure the appliance is protected by a correctly
rated circuit breaker.
Warning
!
Danger of breakdowns or malfunction.
Only use pipework specifically intended for
refrigerant R410A for the air conditioning
installation. Never use plumbing pipes.
6 Transport
7 Unpacking
8 Installation

Split Type Installation Manual
11
EN
8.3 General Installation Diagram
Warning
!
Danger of breakdowns or malfunction.
Observe the minimum clearences indicated in
Figure 8.1.
Fig. 8.1 General diagram of the installation and the minimum
assembly distances.
Legend
1 Indoor Unit
2 Outdoor Unit
3 Condensate connection for outdoor unit
A Clearance to the front of the internal unit (minimum 10 cm)
B Clearance to ceiling above (minimum 5 cm)
D Height in relation to the floor (minimum 2 m)
E Side clearance opposite side connections (minimum 10 cm)
F Rear separation (minimum 10 cm)
G Side clearance connections side (minimum 15 cm)
H Front clearance (minimum 60 cm)
Installation 8

Split Type Installation Manual
12
9 Installation of the Indoor Unit
9.1 Selecting the Indoor Unit Location
Warning
!
Danger of breakdowns or malfunction.
Observe the minimum clearances indicated in
Figure 8.1.
Note!
If a hole already exists in the wall or a refrigerant
pipe or condensed water pipe has already been
installed, the base plate should be mounted to
suit these conditions.
Recommendations
- Install the indoor unit close to the ceiling, ensuring
minimum clearances are met.
- Choose a position that will allow air to reach all parts
of the room evenly. Avoid beams, obstructions or
lights which would interfere with the airflow.
- Install the indoor unit at an adequate distance from
chairs or workstations in order to avoid unpleasant
draughts.
- Avoid installing close to heat sources.
9.2 Fixing the mounting Plate
Carry out the steps described below:
• Place the mounting plate on the chosen installation
point.
• Level the plate horizontally and mark the position of
holes to be made on the wall.
• Remove the plate.
Warning
!
Danger of interference to other services.
Check that there are no electricity lines, pipes or
any other services which could be damaged
where the holes are to be drilled.
If other services are found, choose another
installation location and repeat the
aforementioned steps.
• Make the holes using a drill and insert the wall plugs.
• Place the mounting plate in position, level it
horizontally and fix it with the screws provided into
the wall plugs.
Warning
!
Danger of breakdowns or malfunction.
Ensure that the mounting plate has been
correctly levelled.
Otherwise, remove the plate and re-fix it again
correctly. Failure to do so could lead to water
leaks.
9.3 Installation of the pipe work
9.3.1 Correct removal of condensate water
Warning
!
Danger of breakdowns or malfunction. Danger of
condensed water leakage.
In order to ensure that the unit drains correctly
take the recommendations described in this
section into account.
Methods for the removal of the condensed water which
is generated in the indoor unit:
- Condensed water can be allowed to drain naturally
using the natural fall of the condensed water drain
pipe to a suitable drain point. In order for it to be
aesthetically pleasing, use solid pipework or trunking
to cover the flexible pipework.
- Alternative installation solutions are also available.
- For example, using an external pump for condensed
water, carrying the condensed water to outside or to
the main drainage system.
- By natural fall to which is then emptied using a pump
for condensed water. The pump which operates when
the tank is full, pumping the water to a suitable drain
point.
Warning
!
Danger of breakdowns or malfunction. Danger of
condensed water leakage.
To ensure that the unit drains properly when
using a natural fall, the condensed water pipe
must also have an adequate fall from the indoor
unit.
9 Installation of the Indoor Unit

Split Type Installation Manual
13
EN
9.3.2 Handling the refrigerant Pipes
Danger!
Danger of burns and eye injuries.
When brazing or soldering pipe lines, use
suitable protection equipment (protective eye
protection and mask, welding gloves, flame
proof clothing)
.
Warning
!
Danger of breakdowns or malfunction. Danger of
damage to refrigerant pipes through the use of
unsuitable materials
.
- Use only pipes specifically intended for refrigeration
and R410a refrigerant.
Note!
In specialised wholesalers you will find suitable
refrigerant pipes and the correct thermal
insulation.
- Ensure that the refrigerant pipes are clean, dry and
polished on the inside.
- The insulation of the pipes should be done using
specific class ‘O’ closed cell insulation.
- Observe the minimum and maximum pipe lengths for
each model.
- Wherever possible avoid installing excessive numbers
of bends in pipes. Do not over bend the pipe, keep the
radius as wide as possible to minimise losses.
- When brazing pipes together, use only the correct
welding materials. During the brazing process a stream
of dry nitrogen should be run through the inside of the
pipes in order to avoid oxidisation forming inside the
pipe connection.
- Only cut the coolant pipes using propriety pipe cutters
ensuring no swarf enters the pipe and always keep the
pipe ends sealed wherever possible.
- Any flaring work should be performed meticulously in
order to create the correct connection and to avoid
subsequent refrigerant leaks.
- When reaming the cut pipe keep the pipe opening
directed downwards in order to prevent shavings from
getting into the pipes.
- Mount the connecting tubes carefully, ensuring they
cannot become displaced during brazing. Ensure that
there is no strain on the pipe joints.
- Ensure that all pipework is insulated with the correct
grade of closed cell insulation and that all joints in the
insulation are sealed with insulation tape or glued.
- Carefully tighten the flaring connectors, centring the
flaring cone and the flanged nut. Applying excessive
force without correctly centering can damage the
thread and may allow water ingress into the
connection.
9.3.3 Correct installation of the condensate pipe work
Warning
!
Danger of breakdowns or malfunction. Danger of
water leaks and blockages from unit and
pipework.
- Ensure that sufficient air breaks and traps are
provided to avoid water being retained within the
indoor unit. Otherwise, the condensed water could leak
from the indoor unit.
- For gravity drains ensure fall is sufficient, the pipework
is adequately supported and does not sag and bends
are of large radius to avoid blockages.
- If the water pipe is run outdoors, ensure that it is
insulated against freezing.
- If the condensed water pipe run through an un-heated
room, fit thermal insulation.
- Avoid installing the condensed water pipe with a rising
bend (see Figure 9.1).
Fig. 9.1 Avoid rising bends.
- If the drain is run to a tank or butt, avoid installing the
condensed water pipe with it free end submerged in
water (see Figure 9.2).
Fig. 9.2 Avoiding submerging the end.
Installation of the Indoor Unit 9

Split Type Installation Manual
14
- Do not allow the drain line to be crimped or flattened
which could reduce the flow of water from the indoor
unit (see Figure 9.3).
Fig. 9.3 Avoid kinking the pipe.
- For drain pipes run to ground level outside, install the
condensed water pipe in such a way that the distance of its
free end from the floor is at least 5 cm (see Figure 9.4).
Fig. 9.4
Minimum distance from the floor.
Legend
H Minimum distance from the floor: 5 cm
- Install the condensed water pipe in such a way that its
free end is kept away from unpleasant odours, such as
from open drains to ensure that they are not drawn
back into the unit (see Figure 9.5).
Fig. 9.5 Avoids unpleasant odours.
9.3.4 Making Holes for the Pipes
• Case A: Pipework exiting from the rear of the unit.
In this case, a suitable hole must be made in the wall
behind the unit (see Figure 9.6).
• Drill a hole in accordance with the diameter and
position as indicated in Figure 9.6, ensure the hole
is slightly descending to the outside.
Fig. 9.6 Dimensions of the hole for the piping.
• Case B: Running the pipework out of either side or the
bottom of the unit.
In this case holes do not have to made in the wall
since the indoor unit body has knock outs which can
be opened to allow the pipes to exit the unit: choose
the most convenient one for the desired outlet
position (see Figure
9.7
).
• Carefully break the chosen knock out in the casing using
pliers.
Fig. 9.7 Windows for the installation of the pipes.
Legend
1 Exit for right piping
2 Exit for indoor piping
3 Securing with adhesive tape
4 Exit for left piping
9 Installation of the Indoor Unit
025/035: 745 mm - 050 / 060: 900 mm
025/035: 745 mm - 050 / 060: 900 mm

Split Type Installation Manual
15
EN
9.3.5 Correct installation of indoor unit refrigerant
pipe work
• If installing the rear exiting piping:
• Place the seal ring supplied for the hole in the piping
and insert the coolant pipes with the condensed
water pipe through the hole.
• Remember to seal the hole inside and out properly
after installing the pipes.
• Carefully bend the installation pipe in the right
direction taking care not to overbend or kink the pipe.
Warning
!
Danger of breakdowns or malfunction. Danger of
damage to the coolant pipes.
Bend the pipe carefully to prevent kinking or
breaks.
• There should be sufficient pipe tails on the indoor unit
to go through the wall width. If this is not the case
connect further lengths of pipe as required.
Carefully feed the pipe tails through the holes
together with the condensate pipework and
interconnecting electrical cable.
• Hang the indoor unit on the top edge of the
mounting plate.
• Tilt the lower part of the indoor unit forwards and
insert a spacer (e.g. a piece of wood) between the
mounting plate and the unit (see Figure 9.8) to allow
access to the unit connections.
Fig. 9.8 Assembling the indoor unit.
• Connect the coolant pipes from the outdoor unit and
the condensed water hose to the installation drain.
• Insulate the coolant piping and joints correctly and
separately. To do so, cover any possible cuts with
masking tape or insulate any bare coolant piping with
the corresponding insulation material suitable for air
conditioning installations.
Fig. 9.9 Section showing pipework run behind indoor unit.
Legend
1 Heat-resistant material
2 Drain pipe
3 Insulated refrigeration pipes
4 Piping support plate
5 Interconnecting electric cable
• For pipework exiting from the right hand side and
bottom of the unit extend the pipework through the
relevant knock out before hanging unit (see section
9.3.6).
• For pipework exiting from the left of the unit, make
the connections at the rear of the unit first before
hanging the unit (see section 9.3.6).
Note!
The flare connections where possible should be
accessible to allow leak test and future access.
9.3.6 Installation of the Indoor Unit Body
• Check that the installation has been carried out
correctly and that there are no leaks (see section 12.1).
• Securely hang the indoor unit body onto the upper
notches of the mounting plate. Briefly move the body
from side to side to verify that it is secure.
• Lift the body up slightly from underneath, press it
onto the mounting plate and then lower it vertically.
The body will fit into the lower supports on the
mounting plate.
• Check that the indoor unit is properly secured.
• In the event that the body does not slot into the
supports properly, repeat this process.
• Do not use excessive force as this may damage the
fixing lugs, ensure that the pipework is not trapped
behind the unit.
Installation of the Indoor Unit 9

Split Type Installation Manual
16
10 Installation of the Outdoor Unit
10.1 Selecting the Assembly Location
Warning
!
Outdoor units must be placed in accessible areas
for subsequent maintenance and repair
operations. Vaillant will not be responsible for
any costs derived from incorrect positioning that
prevents easy access for warranty repairs
.
Danger of personal injury and material damage
from explosion!
Install the unit away from inflammable gasses
or liquids or easily combustible substances and
free from thick dust formation.
Danger of personal injury and material damage
from collapse!
Ensure that the ground is smooth and level and
can withstand the weight of the outdoor unit.
Warning
!
Danger of corrosion.
Do not install the unit near to corrosive
materials.
- The outdoor unit can only be mounted outdoors, never
inside a building.
- Do not install the unit in such a way that the air
discharge affects the air inlets of premises nearby.
- If possible avoid direct sunlight.
- Ensure that the ground has sufficient rigidity to avoid
vibrations.
- Ensure that there is sufficient space to observe the
minimum distances (see Figures 8.1 and 8.2).
- Ensure that neighbours are not disturbed by draughts
or noise.
- If the premises are rented obtain the owner's consent.
- Comply with local regulations: there are considerable
differences dependant on the area.
- Leave enough space to fit the condensed water
drainage pipe (see section 10.4).
10.2 Planning the refrigerant Return
The refrigerant circuit contains a special oil to lubricate
the outdoor unit compressor. To assist the return of the
oil to the compressor the following is recommended:
- that wherever possible the indoor unit is located
higher than the outdoor unit and,
- that the suction pipe (the largest diameter one) is
assembled with a gentle slope towards the compressor.
If the outdoor unit is mounted higher than the indoor
unit, the suction pipe must be mounted in a vertical
position. At heights exceeding 7.5 m (where this is
permissible):
• Additional oil traps must be installed at each 7.5M
interval
10.3 Connection of the refrigerant Pipes
Note!
Installation is usually easier if the gas suction
pipe is connected up first. The suction pipe is the
larger diameter one.
• Mount the outdoor unit in the required position.
• Remove the flare nuts and bonnets from the shut off
in the outdoor unit. Discard the bonnets as they are no
longer required.
• Carefully bend the installed pipe towards the outdoor
unit using a bending tool or bending spring (not
supplied).
Warning
!
Danger of breakdowns or malfunction. Danger of
damage to the refrigerant pipes.
Bend the pipe carefully to prevent kinks or
breaks.
• Cut the pipes, leaving enough extra piping hanging
over to enable the unit to be connected at the outdoor
unit valve conections.
• Flare the refrigerant pipe after first placing the flare
nut on the pipe.
• Join the refrigerant pipes to the corresponding
outdoor unit connection.
• Insulate the coolant piping correctly and separately. To
do so, cover any joints in the insulation with masking
tape or insulate any bare coolant piping with the
corresponding insulation material suitable for air
conditioning.
10 Installation of the Outdoor Unit

Split Type Installation Manual
17
EN
10.4 Connection of the condensate drain pipe to
outdoor unit
Whilst the unit is running in heating mode, condensation
forms in the outdoor unit and has to be drained away.
• Insert the supplied elbow connection into the hole
provided at the bottom of the outdoor unit and turn it
90º to fix it (see Figure 10.1).
Fig. 10.1 Assembly of the drainage elbow for condensed water
Legend
1 Outdoor Unit
2 Drainage elbow
3 Drainage hose (not supplied)
• Mount the drainage hose ensuring that it leaves the
unit with a downward slope.
• Verify the correct drainage removal of the water by
pouring the water into a collection tray located at the
bottom of the outdoor unit.
• Protect the condensate water hose with thermal
insulation to avoid freezing.
11 Electric Wiring
11.1 Safety Precautions
Danger!
Danger of electric shock.
Before connecting the unit to the electric
supply line, ensure that the power is isolated.
Danger!
Danger of electric shock.
All electrical works should be completed by an
electrician or a similarly qualified person.
Danger!
Danger of electric shock.
Ensure that the power line is equipped with a
two or three pole isolating switch
according to
the model, (two or three pole isolating) with a
distance of at least 3 mm between contacts
(Standard EN-60335-2-40).
Danger!
Danger of electric shock.
Ensure the power supply to the units is protected
by a suitably sized and rated circuit breaker.
Danger!
Danger of electric shock.
Some units may be supplied with an European
style plug, where this does not match the local
electrical sockets only use with a suitable
adaptor or replace the plug with a UK style one.
or remove and connect directly into a suitable
electrical isolator
Danger!
Danger of electric shock.
Use wiring in accordance with the respective
local, national and international wiring standards
regarding installation in technical electrics.
Danger!
Danger of electric shock.
Use an approved electric plug or local isolator and
power supply cable.
Warning
!
Danger of breakdowns or malfunction.
All electrical wiring must be of suitable size and
rating for the appliance and should only be
installed by suitably qualified personnel.
Installation of the Outdoor Unit 10
Electric Wiring 11

Split Type Installation Manual
18
Warning
!
Danger of breakdowns or malfunction.
Compliance with the Standard EN 61000-3-11:
Check that the nominal power of the main phase
current connection is > 100.
Warning
!
Danger of breakdowns or malfunction.
Ensure that the supplied power voltage is in the
range of 90% to 110% of the rated voltage.
Warning
!
Install the unit in such a way that the electric
plug is easily accessible. Thus, if required, the
unit can be quickly disconnected.
11.2 Remark with regard to Directive 2004/108/CE
In order to prevent electromagnetic interference during
the start up of the compressor (technical process), the
following installation conditions must be adhered to.
• Connect the air conditioning unit to it’s own dedicated
supply connected directly to the distribution board.
Ensure the completed electrical installation has low
impedence.
• Check that no other equipment is connected to this
power supply line.
Note!
For more detailed information on the electric
installation, please consult the Technical
Connection Conditions applied by your electricity
supply board.
Note!
For full details of the unit power requirements
consult the unit rating plate.
11.3 Electric Connection to the Indoor Unit
Warning
!
Danger of breakdowns or malfunction. If the fuse
on the PC board is blown please change it
with type T. 3,15A/250V.
• Open the front panel of the indoor unit by pulling it
upwards.
• Remove the wiring cover on the right of the body by
unscrewing it (see Figure 11.1).
Fig. 11.1 Wiring Cover.
• Insert the cable from the outside:
• Using the same hole through which the coolant pipes
are installed (or are going to be installed later) or,
• Using another of the pipe installation knock outs
provided on the body.
• Pull the electrical cable from the rear of the indoor
unit through to the front of the unit.
• Make the connections on the terminal strip of the
indoor unit according to the corresponding wiring
diagram (see Fig. 11.2).
• Check that the cables are properly fixed and
connected, position the wiring cover and mount the
outside body.
11 Electric Wiring

Split Type Installation Manual
19
EN
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
V12 - 025 / 035 / 050 / 060 W
V 12-060 M2W
Fig. 11.2 Wiring
Electric Wiring 11

Split Type Installation Manual
20
11.4 Electric Connection to the Outdoor Unit
Warning
!
Danger of breakdowns or malfunction. If the fuse
on the PC board is blown please change it
with type T. 25A/250V.
• Remove the protective covering in front of the
electrical connections in the outdoor unit.
• Loosen the screws in the terminal and fully insert the
cable , ensuring the cable sheath extends to the
terminal leaving no exposed conductorr before
tightening the screws to clamp the cable. Connect the
wires to their respective terminal, ensuring all
connections are tight.
Warning
!
Danger of malfunction and breakdowns resulting
from water penetration.
Always terminate the interconnecting cable from
below the cable entry to avoid water penetration
into the terminal box
Warning
!
Danger of malfunction and breakdowns resulting
from short-circuits.
If using a cable with additional cores, insulate
the unused cable wires using electrical tape and
ensure that they cannot come into contact with
any other parts of the electrical installation.
• Check the cable retainer is sufficiently tight to avoid
undue strain on the connections.
• Check that the cables are correctly secured and
connected.
• Replace the protective wiring cover.
11 Electric Wiring
11.5 Electrical Characteristics
V 12-025 W
V 12-035 W
V 12-050 W
V 12-060 W
Power supply (V/Ph/Hz)
230/1/50
230/1/50
230/1/50
230/1/50
Supply
Recommended minimum supply section up to 25 meters (mm
2
)
1,5
1,5
2,5
2,5
Indoor / Outdoor
Indoor
Indoor
Indoor
Indoor
Thermal-magnetic circuit breaker, type D (A)
10
10
16
16
Recommended minimum interconnection section up to 25 meters (mm
2
)
1,5
1,5
2,5
2,5
Inteconnect shielded cable or not (YES / NO)
NO
NO
NO
NO
Residual current protector (A)
0,03
0,03
0,03
0,03
Table 11.1 Electrical Characteristics.
V 12-060 M2W
Power supply (V/Ph/Hz)
230/1/50
Supply 1
Recommended minimum supply section up to 25 meters (mm
2
)
2,5
Indoor / Outdoor
Outdoor
Thermal-magnetic circuit breaker, type D (A)
16
Supply 1
Recommended minimum supply section up to 25 meters (mm
2
)
1,5
Indoor / Outdoor
Indoor
Thermal-magnetic circuit breaker, type D (A)
10
Recommended minimum interconnection section up to 25 meters (mm
2
)
1,5
Inteconnect shielded cable or not (YES / NO)
NO
Residual current protector (A)
0,03