Vaillant V 10-025 NHI Installation guide

V 10-025 NW
V 10-035 NW
Training Manual
Air-conditioner - climaVAIR
Split Type
EN

2
Contents
Installations-und Wartungsanleitung Split-Gerät, wandhängend
Contents
1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1 Indoor Unit dimensions . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 General Installation Diagram . . . . . . . . . . . . . . . . . . 5
2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Connecting Diagram . . . . . . . . . . . . . . . . . . . . . 6
4 Technical Specifications . . . . . . . . . . . . . . . . . . .7
5 Temperatures by Capacities . . . . . . . . . . . . . . . 9
5.1 V 10-025 NW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 V 10-035 NW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Wiring Circuit Diagrams . . . . . . . . . . . . . . . . . . 11
6.1 Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.2 Circuit Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7 Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . 16
7.1 Caution for Diagnosis . . . . . . . . . . . . . . . . . . . . . . . 16
7.2 Problem Symptoms and Measures . . . . . . . . . . . . 16
7.3 Error Codes and Description indoor display . . . . .17
7.3.1
Thermistor or Related Abnormality (indoor unit) 18
7.3.2 Indoor fan motor malfunction . . . . . . . . . . . . . . . . . .19
7.3.3 IPM protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.3.4 The IPM and outdoor PCB don’t communicate or
Related Abnormality . . . . . . . . . . . . . . . . . . . . . . . . . .21
7.3.5 Thermistor or Related Abnormality
(outdoor unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.3.6
Overheat Protection For Exhaust Temperature . . 23
7.3.7 The EEPROM Abnormality
(Indoor or outdoor unit) . . . . . . . . . . . . . . . . . . . . . . 24
7.3.8 Communication error between the indoor and
outdoor units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3.9 High work-intense protection . . . . . . . . . . . . . . . . . 26
7.3.10 Power Supply Over or under voltage fault . . . . . . . 27
7.3.11 Loop of the station detect error . . . . . . . . . . . . . . . 28
7.3.12 Over-current of the compressor . . . . . . . . . . . . . . 28
8 Photographs . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.1 Indoor PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.2 Outdoor PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.3 Inverter Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
8.4 V 10-025 NW Compressor . . . . . . . . . . . . . . . . . . . . 32
8.5 V 10-035 NW Compressor . . . . . . . . . . . . . . . . . . . . 32
9 PCB Explanation . . . . . . . . . . . . . . . . . . . . . . . 33
9.1 Functions and Control . . . . . . . . . . . . . . . . . . . . . . . 33
9.1.1 Main functions and control specification of indoor
unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.1.2 Temperature Adjusting function . . . . . . . . . . . . . . 33
9.1.3 Main functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.1.4 Special functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.2 Main functions and control specification of
outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2.1 Outdoor Unit Operation Frequency and Control 36
9.2.2 Outdoor fan control . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2.3 Four-way Valve Control . . . . . . . . . . . . . . . . . . . . . . 37
9.2.4 Outdoor Defrosting Control . . . . . . . . . . . . . . . . . . 37
9.2.5 PTC Output Control . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.2.6 System Protection Function . . . . . . . . . . . . . . . . . . 38
9.3 Function of Main Thermistor . . . . . . . . . . . . . . . . . 39
9.4 Value of Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.4.1 Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.4.2 Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Split Type Installation Manual 3EN
1 Dimensions
1.1 Indoor Unit dimensions
The indoor unit provides acclimatised air inside the
room to be acclimatised.
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. 1.1 Dimensions of the indoor unit.
Legend
H Height
L Length
D Depth
MODEL H L D kg
V 10-025 NHI 250 758 198 8,8
V 10-035 NHI 250 758 198 8,8
Table 1.1 Dimensions and weights of the indoor unit.
Dimensions 1

Split Type Installation Manual4
1.2 Outdoor Unit
The outdoor unit ensures that the absorbed air is
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 taken from
the outside.
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. 1.2 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 second valve to the floor
F Distance from the third valve to the floor
I Distance between fixing holes
J Distance between fixing supports
MODELO H L D A B C I J kg
V 10-025 NHO 543 783 255 43 55 74 256 500 30
V 10-035 NHO 543 783 255 43 55 74 256 500 34
Table 1.2 Dimensions and weights of the outdoor unit.
1 Dimensions

Split Type Installation Manual 5EN
1.3 General Installation Diagram
Fig. 1.3 General diagram of the installation and the minimum
assembly distances. (MONO).
Legend
1 Indoor Unit
2 Outdoor Unit
3 Pipe for draining the condensed water
A Front separation (minimum 10 cm)
B Top separation in relation to the ceiling (minimum 5 cm)
D Height in relation to the floor (minimum 2 m)
E Side separation opposite side connections (minimum 10 cm)
F Rear separation (minimum 10 cm)
G Side separation connections side (minimum 15 cm)
H Front separation (minimum 60 cm)
Dimensions 1
Accesories 2
2 Accessories
Nr. Accessory (Indoor Unit) Quantity
1Remote 1
2Remote Control bracket 1
3Batteries 2
4Mounting plate 1
Table 2.1 Accessories supplied with the outdoor unit.
Nr. Accessory (Outdoor unit) Quantity
1Rubber caps 2
2Drain - elbow 1
Table 2.2 Accessories supplied with the outdoor unit.

Split Type Installation Manual6
3 Connecting Diagram
Fig. 3.1 Wiring indoor unit.
Electric Characteristics
V 10-025 NW V 10-035 NW
Voltage (V/Ph/Hz) 230/1/50 230/1/50
Supply
Supply section up to 25 meters (in mm2) 1,5 2,5
Indoor / Outdoor Indoor Indoor
Thermal-magnetic circuit breaker, type D (A) 10 16
Interconnection section up to 25 meters (mm2) 1,5 2,5
Inteconnect Shield or not (YES/NO) NO NO
Immediatte residual current protector (A) 0,03 0,03
Table 3.1 Electric Characteristics.
3 Connecting Diagram

Split Type Installation Manual 7EN
4 Technical Specifications
Units V 10-025 NW V 10-035 NW
Indoor Unit V 10-025 NHI V 10-035 NHI
Outdoor Unit V 10-025 NHO VH 10-035 NHO
Cooling Capacity
kW 2,70 3,55
BTU 9.215 12.115
Fg/h 2.322 3.053
Power input kW 0,84 1,10
Min - Max cooling capacity kW 1,20 - 3,50 1,00 - 4,30
Min - Max cooling power input kW 0,28 - 1,25 0,25 - 1,55
Nominal capacity (UK conditions) kW 2,26 2,93
Power input (UK conditions) kW 0,74 0,97
Operating current A 4,10 5,35
EER 3,21 3,23
Energy level class A A
Annual consumption kWh 420 550
Heating capacity
kW 3,35 3,90
BTU 11.433 13.310
Kcal/h 2.881 3.354
Power input kW 0,92 1,08
Min - Max heating capacity kW 1,00 - 4,00 1,30 - 4,50
Min - Max heating power input kW 0,27 - 1,25 0,33 - 1,52
Nominal capacity (UK conditions) kW 2,82 2,99
Power input (UK conditions) kW 0,93 1,02
Operating current A 4,64 5,05
COP 3,63 3,61
Energy level class
Max power input kW 1,50 1,90
Max operating current A 8,00 10,00
Indoor Unit
Air Flow volume m3/h 350/400/450 360/410/470
Remote control type Wireless - Infrared Wireless - Infrared
Remote control reference YR-H76 YR-H76
Sound Power level dB(A) 44/46/49 44/48/52
Sound Pressure level dB(A) 34/36/39 34/38/42
Catalogue sound pressure dB(A) 26/32/38 28/35/40
Testing conditions for sound pressure Microphone directivity,distance 1.0m
Dimensions (HxLxD) mm 250x758x198 250x758x198
Net Weight Kg 8,8 8,8
Packaged dimensions HxLxD mm 312x857x292 312x857x292
Volume m3 0,078 0,078
Packaged weight Kg 11 11
Technical specifications 4

Split Type Installation Manual8
Units V 10-025 NW V 10-035 NW
Outdoor Unit
Air flow volume m3/h 1.900 1.600
Sound power level dB(A) 63 63
Sound pressure level dB(A) 50 50
Number of fans 1 1
Refrigerant R410A R410A
Refrigerant charge heat pump gr 650 940
Inverter DC / AC Inverter DC Inverter DC
Compressor type Rotary Rotary
Compressor Model DA89X1C-20FZ DA108X1C-20FZ3
Compressor Brand Toshiba-MEIZHI Toshiba-MEIZHI
Expansion system Capillary Capillary
Electric_electronic protections Voltage protection; current
Dimensions HxLxD mm 543 x 738 x 255 543 x 783 x 255
Dimensions Valves A/B/C mm 43 / 55 / 74 43 / 55 / 74
Dimensions Installation I/J mm 256 / 500 256 / 500
Net Weight Kg 30 34
Packaged dimensions HxLxD mm 614 x 930 x 340 614 x 930 x 340
Volume m3 0,194 0,194
Packaged weight heat pump Kg 34 38
Installation
Pipe connection liq/gas inches 1/4" - 3/8" 1/4" - 3/8"
PM (Max pressure) bar 41,5 41,5
pm (min pressure) bar 20 20
Max. piping lenght m 15 15
Max. Height IU under OU m 7,5 7,5
Max. Height OU under IU m 10 10
Chargeless lenght m 5 5
Additional charge per meter gr 20 20
Table 4.1 Technical specifications V 10-025 / 035 NW
Note!
As part of its policy for ongoing improvements of its
products, Vaillant reserves the right to modify these
specifications without prior notice.
4 Technical specifications

Split Type Installation Manual 9EN
5 Temperatures by Capacities
5.1 V 10-025 NW
Cooling Outdoor Temperature Dry
Indoor Conditions 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Total capacity- kW 2,50 2,48 2,47 2,38 2,27 2,00 1,73
Sensitive capacity- kW 1,88 1,87 1,86 1,79 1,71 1,51 1,31
Input- kW 0,56 0,60 0,65 0,72 0,70 0,67 0,65
24ºC D
17ºC W
Total capacity- kW 2,67 2,66 2,64 2,54 2,42 2,15 1,87
Sensitive capacity- kW 2,01 2,00 1,99 1,91 1,73 1,62 1,41
Input- kW 0,59 0,65 0,71 0,78 0,76 0,73 0,71
27ºC D
19ºC W
Total capacity- kW 2,85 2,83 2,81 2,70 2,58 2,29 2,00
Sensitive capacity- kW 2,15 2,13 2,12 2,03 1,94 1,73 1,51
Input- kW 0,65 0,70 0,76 0,84 0,82 0,79 0,77
32ºC D
23ºC W
Total capacity- kW 3,13 3,12 3,10 2,95 2,82 2,54 2,24
Sensitive capacity- kW 2,36 2,35 2,33 2,22 2,12 1,91 1,69
Input- kW 0,72 0,79 0,85 0,93 0,90 0,89 0,86
Table 5.1.1 Cooling temperarures V 10-025 NW
Heating Outdoor Temperature Dry
Indoor
Conditions
24ºC D
18ºC W
12ºC D
11ºC W
7ºC D
6ºC W
4ºC D
3ºC W
0ºC D
-1ºC W
-5ºC D
-6ºC W
-7C D
-8ºC W
-15ºC D
-16ºC W
15ºC Capacity- kW 3,99 2,33 2,13 2,79 2,56 2,48 2,44 2,40
Input- kW 0,72 0,75 0,78 0,70 0,67 0,64 0,62 0,57
18ºC Capacity- kW 3,86 3,06 2,85 2,69 2,48 2,37 2,35 2,27
Input- kW 0,89 0,95 0,97 0,87 0,84 0,80 0,77 0,71
20ºC
Capacity- kW 3,78 3,56 3,35 2,62 2,41 2,29 2,27 2,18
Input- kW 0,85 0,89 0,92 0,82 0,78 0,75 0,73 0,67
22ºC Capacity- kW 3,71 3,51 3,30 2,57 2,36 2,26 2,23 2,15
Input- kW 0,88 0,93 0,97 0,85 0,82 0,78 0,75 0,70
27ºC Capacity- kW 3,57 3,36 3,17 2,47 2,24 2,15 2,14 2,06
Input- kW 0,96 1,00 1,04 0,93 0,89 0,85 0,82 0,75
Table 5.1.2 Heating temperarures V 10-025 NW
Temperature by Capacities 5

Split Type Installation Manual10
5.2 V 10-035 NW
Cooling Outdoor Temperature Dry
Indoor Conditions 21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Total capacity- kW 3,16 3,14 3,13 3,01 2,87 2,53 2,19
Sensitive capacity- kW 2,31 2,30 2,29 2,21 2,10 1,85 1,59
Input- kW 0,72 0,78 0,84 0,94 0,91 0,88 0,84
24ºC D
17ºC W
Total capacity- kW 3,37 3,37 3,34 3,21 3,06 2,72 2,36
Sensitive capacity- kW 2,47 2,47 2,45 2,36 2,24 1,98 1,72
Input- kW 0,77 0,84 0,92 1,02 0,99 0,96 0,92
27ºC D
19ºC W
Total capacity- kW 3,60 3,58 3,55 3,55 3,26 2,90 2,53
Sensitive capacity- kW 2,64 2,63 2,61 2,54 2,39 2,12 1,85
Input- kW 0,84 0,91 0,99 1,10 1,07 1,04 1,00
32ºC D
23ºC W
Total capacity- kW 3,95 3,95 3,91 3,72 3,57 3,21 2,81
Sensitive capacity- kW 2,91 2,91 2,88 2,74 2,62 2,36 2,06
Input- kW 0,94 1,04 1,12 1,23 1,18 1,16 1,13
Table 5.2.1 Cooling temperarures V 10-035 NW
Heating Outdoor Temperature Dry
Indoor
Conditions
24ºC D
18ºC W
12ºC D
11ºC W
7ºC D
6ºC W
4ºC D
3ºC W
0ºC D
-1ºC W
-5ºC D
-6ºC W
-7C D
-8ºC W
-15ºC D
-16ºC W
15ºC Capacity- kW 4,58 2,60 2,36 3,15 2,89 2,77 2,73 2,68
Input- kW 1,17 1,22 1,27 1,13 1,08 1,03 1,00 0,91
18ºC Capacity- kW 4,43 3,48 3,23 3,03 2,77 2,65 2,62 2,53
Input- kW 1,07 1,13 1,17 1,03 1,00 0,94 0,91 0,84
20ºC Capacity- kW 4,33 4,07 3,90 2,95 2,70 2,56 2,53 2,42
Input- kW 1,01 1,07 1,08 0,98 0,93 0,89 0,86 0,79
22ºC Capacity- kW 4,26 4,01 3,76 2,89 2,64 2,51 2,48 2,39
Input- kW 1,05 1,12 1,16 1,01 0,98 0,93 0,89 0,82
27ºC Capacity- kW 4,08 3,84 3,60 2,76 2,50 2,39 2,37 2,28
Input- kW 1,15 1,20 1,25 1,12 1,07 1,01 0,98 0,89
Table 5.2.2 Heating temperarures V 10-035 NW
5 Temperature by Capacities

Split Type Installation Manual 11EN
6 Wiring Circuit Diagrams
6.1 Wiring Diagrams
Wiring Circuit Diagrams 6
Fig. 6.1.1 Wiring Indoor Diagram

Split Type Installation Manual12
6 Wiring Circuit Diagrams
Fig. 6.1.2 Wiring Outdoor Diagram

Split Type Installation Manual 13EN
6.2 Circuit Diagrams
Wiring Circuit Diagrams 6
Fig. 6.2.1 Circuit Indoor Diagram

Split Type Installation Manual14
6 Wiring Circuit Diagrams
Fig. 6.2.2 Circuit Outdoor Diagram

Split Type Installation Manual 15EN
Wiring Circuit Diagrams 6
Fig. 6.2.3 Circuit Outdoor Module Board

Split Type Installation Manual16
7 Service Diagnosis
7.1 Caution for Diagnosis
The operation lamp flashes when any of the following
errors is detected.
1. When a protection device of the indoor or outdoor
unit is activated or when the thermistor
malfunctions, disabling equipment operation.
2. When a signal transmission error occurs between the
indoor and outdoor units.In either case, conduct the
diagnostic procedure described in the following
pages.
7.2 Problem Symptoms and Measures
Symptom Check Item Details of Measure
None of the units operates
Check the power supply. Check to make sure that the rated voltage is
supplied.
Check the indoor PCB Check to make sure that the indoor PCB is broken
Operation sometimes stops. Check the power supply. A power failure of 2 to 10 cycles can stop air condi-
tioner operation.
Equipment operates but does
not cool, or does not heat
(only for heat pump)
Check for faulty operation of
the electronic expansion valve.
Set the units to cooling operation, and compare
the temperatures of the liquid side connection
pipes of the connection section among rooms to
check the opening and closing operation of the
electronic expansion valves of the individual units.
Diagnosis by service port
pressure and operating
current.
Check for insufficient gas.
Large operating noise and
vibrations
Check the installation condition.
Check to make sure that the required spaces for
installation (specified in the Technical Guide, etc.)
are provided.
Table 7.1 Problem Symptoms and Measures
7 Service Diagnosis

Split Type Installation Manual 17EN
Code indication
Description
Indoor Outdoor
(LED1 flash times)
Indoor and Outdoor E7 15 Communication fault between indoor and outdoor units
Indoor
Malfunction
E1 Room temperature sensor failure
E2 Heat-exchange sensor failure
E4 Indoor EEPROM error
E14 Indoor fan motor malfunction
E9 High work-intense protection
Outdoor
Malfunction
F12 1 Outdoor EEPROM error
F11 2 The protection of IPM
F22 3
Overcurrent protection of AC electricity for the outdoor model
F11 4 Communication fault between the IPM and outdoor PCB
5
Over pressure or Overheat protection for the compressor
F11 6 Power voltage is too high or low
F4 8 Overheat protection for exhaust temperature
9 outdoor fan motor malfunction
F21 10 Frost-removing temperature sensor failure
F6 12 Ambient temperature sensor failure
F25 13 Exhaust temperature sensor failure
18 deviate from the normal for the compressor
F11 19 Loop of the station detect error
--- 24 Overcurrent of the compressor
--- 25
Overcurrent protection for single-phase of the compressor
Service Diagnosis 7
Table 7.2 Problem Symptoms and Measures
7.3 Error Codes and Description indoor display

Split Type Installation Manual18
7.3.1 Thermistor or Related Abnormality (indoor unit)
Indoor Display E1: Room temperature sensor failure
E2: Heat-exchange sensor failure
Troubleshooting
Caution!
Be sure to turn off power switch before connect
or disconnect connector, or else parts damage
may be occurred.
Fig. 7.1.1 Flow chart.
Thermistor resistance check method
Remove the connector of the thermistor on the PCB, and
measure the resistance of thermistor using tester. The
relationship between normal temperature and resistance
is shown in the value of indoor thermistor.
Fig. 7.1.2 Thermistor.
7 Service Diagnosis

Split Type Installation Manual 19EN
Service Diagnosis 7
7.3.2 Indoor fan motor malfunction
Indoor Display E14
Fig. 7.2 Flow chart.

Split Type Installation Manual20
7.3.3 IPM protection
outdoor display LED1 flash 2 times,Indoor display F11.
Caution!
Be sure to turn off power switch before connect
or disconnect connector, or else parts damage
may be occurred.
Fig. 7.3 Flow chart.
7 Service Diagnosis