Panasonic Aquarea WH-SDC12H6E5 User manual

© Panasonic Corporation 2017.
Indoor Unit Outdoor Unit
WH-SDC12H6E5
WH-SDC16H6E5
WH-UD12HE5
WH-UD16HE5
Destination
Europe
Turkey
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be
replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission
of manufacturer.
IMPORTANT SAFETY NOTICE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
PRECAUTION OF LOW TEMPERATURE

Safety Precautions
Read the following “SAFETY PRECAUTIONS” carefully before installation.
Electrical work must be installed by a licensed electrician. Be sure to use the correct rating and main circuit for
the model to be installed.
The caution items stated here must be followed because these important contents are related to safety. The
meaning of each indication used is as below. Incorrect installation due to ignoring of the instruction will cause
harm or damage, and the seriousness is classified by the following indications.
Please leave this installation manual with the unit after installation.
WARNING This indication shows the possibility of causing death or serious injury.
CAUTION This indication shows the possibility of causing injury or damage to properties only.
The items to be followed are classified by the symbols:
Symbol with white background denotes item that is PROHIBITED from doing.
Symbol with dark background denotes item that must be carried out.
Carry out test run to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care and
maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
WARNING
1. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with
other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
2. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.
3. Keep plastic bag (packaging material) away from small children, it may cause suffocation.
4. Do not use pipe wrench to install refrigerant piping. It might deform the piping and cause the unit to malfunction.
5. Do not purchase unauthorized electrical parts for installation, service, maintenance and etc. They might cause electrical shock or fire.
6. Do not modify the wiring of Indoor Unit for installation of other components (i.e. heater, etc). Overloaded wiring or wire connection
points may cause electrical shock or fire.
7. Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.
8.
Do not use joint cable for Indoor / Outdoor Unit connection cable. Use specified Indoor / Outdoor Unit connection cable, refer to
instruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for Indoor / Outdoor Unit connection. Clamp the cable
so that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the
connection.
9. Do not install outdoor unit near handrail of veranda. When installing outdoor unit at veranda of high rise building, child may climb up to
outdoor unit and cross over the handrail and causing accident.
10. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
11. Do not sit or step on the unit, you may fall down accidentally.
12. For electrical work, follow local wiring standard, regulation and this installation instruction. An independent circuit and single outlet
must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.
13. For water circuit installation work, follow to relevant European and national regulations (including EN61770) and local plumbing and
building regulation codes.
14. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or
fire.
15.
This is a R410A model, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may
cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A
refrigerant.
Thickness or copper pipes used with R410A must be 0.8 mm or more. Never use copper pipes thinner than 0.8 mm.
It is desirable that the amount of residual oil is less than 40mg/10m.
16. When install or relocate Indoor Unit / Outdoor Unit, do not let any substance other than the specified refrigerant, e.g. air etc. mix into
refrigerant cycle (piping). Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc..
17. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

WARNING
18. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not
properly done, the set will drop and cause injury.
19. This equipment is strongly recommended to be installed with Residual Current Device (RCD) on-site according to the respective
national wiring rules or country–specific safety measures in terms of residual current.
20.
During installation, install the refrigerant piping properly before run the compressor. Operation of compressor without fixing
refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
21.
During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigerant piping while
compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigerant cycle and result in
explosion, injury etc.
22. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over tightened, after a long period, the flare
may break and cause refrigerant gas leakage.
23. After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant contacts
with fire.
24. Ventilate the room if there is refrigerant gas leakage during operation. Extinguish all fire sources if present. It may cause toxic gas
when the refrigerant contacts with fire.
25. Only use the supplied or specified installation parts, else, it may cause unit vibrate loose, water leakage, electrical shock or fire.
26. The unit is only for use in closed water system. Utilization in an open water circuit may lead to excessive corrosion of water piping and
risk of incubating bacteria colonies, particularly Legionella, in water.
27. If there is any doubt about the installation procedure or operation, always contact the authorized dealer for advice and information.
28. Select a location where in case of water leakage, the leakage will not cause damage to other properties.
29. When installing electrical equipment at wooden building of metal lath or wire lath, in accordance with electrical facility standard, no
electrical contact between equipment and building is allowed. Insulator must be installed in between.
30. Any work carried out on the Indoor Unit / Outdoor Unit after removing any panels which is secured by screws, must be carried out
under the supervision of authorized dealer and licensed installation contractor.
31.
This unit must be properly earthed. The electrical earth must not be connected to a gas pipe, water pipe, the earth of lightening rod or
a telephone. Otherwise there is a danger of electrical shock in the event of an insulation breakdown or electrical earth fault in the
outdoor unit.
32.
Do not use joint cable for outdoor connection cable. Use specified outdoor connection cable, refer to instruction CONNECT THE
CABLE TO THE OUTDOOR UNIT and connect tightly for outdoor connection. Clamp the cable so that no external force will be acted
on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.
CAUTION
1. Do not install the Indoor Unit / Outdoor Unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates
at surrounding of the unit, it may cause fire.
2. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care of the
liquid refrigerant, it may cause frostbite.
3. Do not install this appliance in a laundry room or other high humidity location. This condition will cause rust and damage to the unit.
4. Make sure the insulation of power supply cord does not contact hot part (i.e. refrigerant piping) to prevent from insulation failure (melt).
5. Do not apply excessive force to water pipes that may damage the pipes. If water leakage occurs, it will cause flooding and damage to
other properties.
6. Do not touch the sharp aluminium fin, sharp parts may cause injury.
7. Do not release refrigerant into the atmosphere. The product contains fluorinated greenhouse gases and that its functioning relies upon
such gases.
8. Select an installation location which is easy for maintenance.
9. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage
the furniture.

CAUTION
10.
Power supply connection to Indoor Unit.
Power supply point should be in easily accessible place for power disconnection in case of emergency.
Must follow local national wiring standard, regulation and this installation instruction.
Strongly recommended to make permanent connection to a circuit breaker.
- Power supply 1: Use approved 30A 2-poles circuit breaker with a minimum contact gap of 3.0 mm.
- Power supply 2: Use approved 30A 2-poles circuit breaker with a minimum contact gap of 3.0 mm.
11. Ensure the correct polarity is maintained throughout all wiring. Otherwise, it will cause electrical shock or fire.
12. After installation, check the water leakage condition in connection area during test run. If leakage occurs, it will cause damage to other
properties.
13.
Installation work.
It may need two or more people to carry out the installation work. The weight of Indoor Unit / Outdoor Unit might cause injury if carried
by one person.

Specifications
WH-SDC12H6E5 WH-UD12HE5
Item Unit Outdoor Unit
Performance Test Condition EN 14511
Condition
(Ambient/Water) A35W7
kW 10.00
BTU/h 34100
Cooling Capacity
kcal/h 8600
W/W 2.81
Cooling EER kcal/hW 2.42
Condition
(Ambient/Water) A7W35 A2W35
kW 12.00 11.40
BTU/h 41000 38900
Heating Capacity
kcal/h 10320 9800
W/W 4.74 3.44
Heating COP kcal/hW 4.08 2.96
Low Temperature Application (W35)
Application Climate
Warmer Average Colder
Pdesign kW 11.0 10.0 11.0
Tbivalent / TOL °C 2 / 2 -10 / -10 -15 / -22
SCOP / ns (W/W) / % 6.21 / 245 4.82 / 190 4.29 / 168
Annual Consumption kWh 2368 4286 6327
Class A++ A++ A++
Medium Temperature Application (W55)
Application Climate
Warmer Average Colder
Pdesign kW 9.0 8.0 9.0
Tbivalent / TOL °C 2 / 2 -10 / -10 -15 / -22
SCOP / ns (W/W) / % 4.05 / 159 3.42 / 134 3.10 / 121
Annual Consumption kWh 2970 4840 7147
Heating ErP
Class A++ A++ A+
Condition
(Ambient/Water) A35W7 A7W35 A2W35
dB (A) Cooling: 50 Heating: 52 —
Noise Level
Power Level dB Cooling: 68 Heating: 69 —
Air Flow m3/min (ft3/min) Cooling: 93.3 (3290)
Heating: 80.0 (2830)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3FV50S (1200)
Refrigerant (R410A) kg (oz) 2.55 (90.0)
GWP 2088
F-GAS CO2eq (ton) (Precharged / Maximum) 5.324 / 7.412
Height mm (inch) 1340 (52-3/4)
Width mm (inch) 900 (35-7/16)
Dimension
Depth mm (inch) 320 (12-19/32)
Net Weight kg (lbs) 101 (223)
Liquid mm (inch) 9.52 (3/8)
Pipe Diameter Gas mm (inch) 15.88 (5/8)
Standard Length m (ft) 7 (23.0)
Pipe Length Range m (ft) 3 (9.8) ~ 30 (98.4)
I/D & O/D Height Difference m (ft) 20 (65.6)
Additional Gas Amount g/m (oz/ft) 50 (0.5)

Item Unit Outdoor Unit
Refrigeration Charge Less m (ft) 10 (32.8)
Type Hermetic Motor
Motor Type Brushless (4-poles)
Compressor
Rated Output kW 3.00
Type Propeller Fan
Material PP
Motor Type DC (8-poles)
Input Power W —
Output Power W 60
Fan
Fan Speed rpm Cooling: 600 (Top), 640 (Bottom)
Heating: 510 (Top), 550 (Bottom)
Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row × Stage × FPI 2 × 51 × 18
Heat Exchanger
Size (W × H × L) mm 903.7 × 1295.4 × 38.1
ø Single
V 230
Power Source (Phase, Voltage, Cycle)
Hz 50
Condition
(Ambient/Water) A35W7 A7W35 A2W35
Input Power
kW Cooling: 3.56 Heating: 2.53 Heating: 3.31
Maximum Input Power For Heatpump System kW 5.30
Power Supply 1 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) 1Ø / 24.0 / 5.30k
Power Supply 2 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) 1Ø / 26.0 / 6.00k
Power Supply 3 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) — / — / —
Starting Current A 16.0
Condition
(Ambient/Water) A35W7 A7W35 A2W35
Running Current
A Cooling: 16.0 Heating: 11.7 Heating: 15.0
Maximum Current For Heatpump System A 24.0
Power Factor
Power factor means total figure of compressor and
outdoor fan motor.
% Cooling: 97 Heating: 94 Heating: 96
Number of core —
Power Cord Length m (ft) —
Thermostat Electronic Control
Protection Device Electronic Control

Item Unit Indoor Unit
Performance Test Condition EN 14511
Outdoor Ambient °C Cooling: 16 ~ 43
Heating: -20 ~ 35
Operation Range
Water Outlet °C Cooling: 5 ~ 20
Heating: 20 ~ 55
Internal Pressure Differential kPa Cooling: 36
Heating: 51
Condition
(Ambient/Water) A35W7 A7W35 A2W35
dB (A) Cooling: 33 Heating: 33 —
Noise Level
Power Level dB Cooling: 46 Heating: 46 —
Height mm (inch) 892 (35-1/8)
Width mm (inch) 500 (19-11/16)
Dimension
Depth mm (inch) 340 (13-13/32)
Net Weight kg (lbs) 43 (95)
Liquid mm (inch) 9.52 (3/8)
Refrigerant Pipe Diameter Gas mm (inch) 15.88 (5/8)
Inlet mm (inch) 32 (1-1/4)
Water Pipe Diameter Outlet mm (inch) 32 (1-1/4)
Water Drain Hose Inner Diameter mm (inch) 15 (19/32)
Motor Type DC Motor
No. of Speed 7 (Software Selection)
Pump
Input Power W 92
Type Brazed Plate
No. of Plates 36
Size (W × H × L) mm 66.7 × 119 × 376
Hot Water Coil
Water Flow Rate l/min (m3/h) Cooling: 28.7 (1.7)
Heating: 34.4 (2.1)
Pressure Relief Valve Water Circuit kPa Open: 300, Close: 266 and below
Flow Switch Electronic Sensor
Protection Device A Residual Current Circuit Breaker (30)
Volume I 10
Expansion Vessel MWP bar 3
Capacity of Integrated Electric Heater kW 6.00
Note:
Cooling capacities are based on outdoor air temperature of 35°C Dry Bulb with controlled indoor water inlet
temperature of 12°C and water outlet temperature of 7°C.
Heating capacities are based on outdoor air temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb
(42.8°F Wet Bulb) with controlled indoor water inlet temperature of 30°C and water outlet temperature of 35°C.
Specification are subjected to change without prior notice for further improvement.
Flow rate indicated are based on nominal capacity adjustment of leaving water temperature (LWT) 35°C and T
= 5°C.

Features
Inverter Technology
- Energy saving
High Efficiency
Environment Protection
- Non-ozone depletion substances refrigerant (R410A)
Long Installation Piping
- Long piping up to 30 meter with height difference 20 meter
- Flexible 4-way piping for outdoor unit
Easy to use control panel
- Auto mode
- Holiday mode
- Dry concrete function
- Weekly timer setting
A-class energy efficiency pump
- Water pump speed can be set by selection at control panel
Improved deice cycle
Protection Feature
- Random auto restart after power failure for safety restart operation
- Gas leakage protection
- Prevent compressor reverse cycle
- Inner protector to protect compressor
Serviceability Feature
- Breakdown Self Diagnosis function
- System Status Check Buttons for servicing purpose
- System Pumpdown Button for servicing purpose
- Front maintenance design for outdoor unit

Dimensions
Indoor Unit
Relative position between the indoor unit and the installation plate <Front View>
Unit: mm
340
500
58.9
141.9
100
88.3
30.6
49
129.5
250
156
980
892
326.9
<Top View>
<Front View> <Side View>
<Bottom View>
1556 from
55
200
756
16070
Indoor Unit
body
ground
Installation
plate
Installation
plate
Bolt -
size M8
WallWall More than 375 More than 375
427
326.5
141.5
58.5.
62
53
153
285

Outdoor Unit
Unit: mm
<Top View>
<Front View> <Side View>
900
400 320 355
900
318.5 253
218
165
243
1340
615
32040
40 20
110
356.5
<Side view>
<Back view>
30

Refrigeration and Water Cycle Diagram
TINUROODNITINUROODTUO
Pipe
Temp.
Sensor
Water Inlet
Temp.
Sensor
Hex Water Outlet
Temp. Sensor
Refrigerant
Temp
Sensor
Air
Temp.
Sensor
Eva.
Exit
Temp.
Sensor
Defrost
Sensor
Backup Heater
Indoor
Side
Outdoor
Side
Expansion
Vessel
Pressure
Relief
Valve
Control
Panel
Water
Flow
Switch
Water
Pump
Water
Inlet
(Connect
to
Sanitary
Tank)
Water
Outlet
(Connect
to
Sanitary
Tank)
Drain
Refrigerant Cycle (Heating)
Water Cycle
Refrigerant Cycle (Cooling)
Heat
Exchanger
Heat
Exchanger
Strainer Strainer
4-Way
Valve
Gas
Side
(3-Way
Valve)
Liquid
Side
(3-Way
Valve)
2-Way
Valve
Accumulator
inout
Pressure
Switch
High
Pressure
Sensor
Compressor Discharge
Temp. Sensor
Compressor
Water
Pressure
Gauge
Capillary
Tube
Muffler
Expansion
Valve
Water Outlet
Temp. Sensor
Model Piping size Rated Length (m)
Gas Liquid
For Heat
Pump Indoor
Unit
For
Hydromodule
+ Tank
Max
Elevation
(m)
Min. Piping
Length
(m)
Max. Piping
Length
(m)
Additional
Refrigerant
(g/m)
UX09*E5*, UX12*E5*,
UD12*E5*,
UD16*E5*, UX09*E8*,
UX12*E8*,
UX16*E8*, UD09*E8*,
UD12*E8*,
UD16*E8*
Ø15.88 mm
(5/8")
Ø9.52 mm
(3/8") 7 5 20 3 30 50
Example:
If piping length is 30m, the quantity of additional refrigerant should be 1000g. [(30-10)m x 50 g/m = 1000g]
GWP (R410A) = 2088

46
9. Electronic Circuit Diagram
9.1 Indoor Unit
3-WAY VALVE
NOPE NCLOSECLOSE OPEN N
2-WAY VALVE
EXTERNAL CONTROL 1
BL BL
CONTROL PANEL
OUTDOOR AIR SENSOR TANK SENSOR
HEAT COOL LN
ROOM THERMO 1
RY-V2
BL
AC1-L3
(BLK)
W
AC1-N (WHT)
G
G01
(GRN)
R
DATA
(RED)
G
G02
(GRN)
POWER SUPPLY 1
(L) BL
1
Single phase AC230V 50Hz
W
GROUNDING
3
(N)
In=30mA
2
RCCB/ELCB
230V 30A
~40A
RECTIFICATION CIRCUIT
COMMUNICATION CIRCUIT
RECTIFICATION CIRCUIT
NOISE FILTER CIRCUIT
WATER PUMP CIRCUIT
W
BL
R
BR
B
1 4 5 6 7
1 23
4 7 1 2
3 4 7
W
BL
R
BR
B
M
CN-PUMP1 (WHT)
B
80 3 C
OLP
CN-TH1
4 1 2 3 2
WATER OUTLET TEMP. SENSOR(THERMISTOR) REFRIGERANT TEMP. SENSOR(THERMISTOR) WATER INLET TEMP. SENSOR(THERMISTOR)
t
ﾟ
t
ﾟ
t
ﾟ
WATER
PUMP
ELECTRONIC CONTROLLER (MAIN)
FUSE 1
T6.3A L250V
B
GROUNDING
1 2
CN-TH3
t
ﾟ
HEX WATER OUTLET TEMP. SENSOR (THERMISTOR)
CN-OLP1
1 4 1 2 3 4 3 2 1 2 3 4
TO OUTDOOOR UNIT
TERMINAL BOARD
CN-FLWSEN
1 1 2 3 4 5 6
FLOW SENSOR
BR
B
BL
W
BOILER CONTACT EXTRA PUMP BOOSTER HEATER
SIGNAL DETECTION CIRCUIT
RY-V3
ROOM TEMP. ZONE 1 OLP BOOSTER HEATER
CN1 CN2
CN3 CN4 CN5 CN6
RY-CONTACT1
SSR1
SW1 SW2
NOISE FILTER CIRCUIT
(BL)
(W)
(R)
NOISE FILTER CIRCUIT
FUSE 3
T3.15A L250V
G03
(GRN)
G
REACTOR
L1
(WHT)
WW
L2
(WHT)
12 12
WW
WATER
PIPING
BASE
PAN
G
WATER
PIPING
G
CONNECTING
BAR
SSR205
SSR207
SSR206
WATER PUMP ZONE 1 WATER PUMP ZONE 2
OPTIONAL
BL
R B
W W
W
W W
CN-PWR3 Green CN-PWR2 Blue CN-PWR4 Black CN-CNT CN-PWR (BLK)
CN203
CN202
CN-COMM
(YLW)
CN-PWR202
(YLW)
ACL (BLK)
ACN (WHT)
CN-PWR204
(YLW)
DCP
(RED)
DCN
(BLU)
ELECTRONIC CONTROLLER (SUB)
CN201
CN209 CN208
CN210CN206CN207
CN204
CN205
CN-CNT
(WHITE)
5 1
SSR204
1 2 3 4 5
2 4 1 3 2 1 1
1 2 1 3 3 1 2 1
SIGNAL DETECTION CIRCUIT
SIGNAL DETECTION CIRCUIT
SSR201 SSR200 SSR203 SSR202
RY1
SOLAR WATER PUMP
POOL WATER PUMP
ERROR SIGNAL
BIT1BIT2VCC
MIXING
VALVE 1
NOPENCLOSE CLOSEOPE NN
MIXING
VALVE 2
HEATCOOLLN
ROOM THERMO 1ROOM THERMO 2
NL COOL HEAT
C121
1µ
50V
C83
0.1µ
16V
C89
1µ
16V
C98
1µ
16V
G2G2
R136
1k
R141
6.49k
1%
12V
G2
5V
5V
5V
C92
0.1µ
16V
R130
10k
5V
C91
220µ
10V
C88
1µ
16V
R140
20k
1%
R139
20k
1%
R128
20k
1%
R135
20k
1%
G2
G2
G2
C90
1µ
16V
C84
1µ
16V
C81
1µ
16V
C73
1µ
16V
C79
1µ
16V
C93
100p
50V
ZD2
20V
PC1
A
1 2
4 3
K
LF3
R1
10k
R24
10k
R97
1W
5V
C E
R144
10k
5V_2
20V
G6
SG SIGNAL
DEMAND
SIGNAL
DC 10V
DC GND
WATER TEMP.
ZONE 1
HEAT/COOL
SWITCH
EXTERNAL
COMP. SW
SOLAR TEMP.
SENSOR
WATER TEMP.
ZONE 2
POOL TEMP.
SENSOR
BUFFER TANK
SENSOR
ROOM TEMP.
ZONE 2
ROOM TEMP.
ZONE 1
W W W W
1
W
(N
1
)
(L
1
)
R
Single phase AC230V 50Hz
POWER SUPPLY 2
BL
TERMINAL BOARD
GROUNDING
BL
RCCB/ELCB
80 3 C
OLP
BL
AC2-N2
(WHT)
SIGNAL DETECTION CIRCUIT
RY-BOOSTER
BACKUP HEATER(6kW)
BL
ACL3
(BLK)
2
1 2 33
AC2-L3
(BLK)
RY-HT(L3)
HT1-L3
(RED)
R
BL
W
HT1-L2
(ORG)
AC2-L2
(YLW)
RY-HT(L2)
W
OLP
80 3 C
AB
O
Y
O
W
22 11
O
In=30mA
230V 30A~40A
C123
1µ
50V
R86
10k
R81
10k
C48
0.1u
16V
L4
C61
1000p
50V
C63
1000p
50V
5V_2
5V
L3
12V
*C57
R114
1.5k
1/10W
Q19
E
C
B
10k
10k
5V
IC9
1 2
3 4
16 15
14 13
*R22
*JP8
*R11
*R21 *R12
*RY-H TL3
12V
*RY-HTL2
*RY-BOOSTER
IC15
1 2
3 4
R126
1/2W C82
1000p
50V
RY-CONTACT1
R133
1/2W
15 16 14 13
512
4
12
SSR1
3
12V
5V
-+
*R131
*BZ1
R143
6.49k
1%

47
9.2 Outdoor Unit
3
CN-V1
MAGNETIC COIL (4-WAY VALVE)
3
BL
3 1
W
AC-BLK02
BL
W
ELECTRONIC CONTROLLER (MAIN)
BASE PAN HEATER
Y/G
3
FUSE2
CRANKCASE
(YELLOW)
(BLACK)
T3.15A L250V
G
UPPER FAN MOTOR
3
COM3 (RED)
R
1
AC-WHT02
1
(WHITE)
RY-HT2
CN-HT2
RY-HT1
CN-HOT CN-HT1
1
G
WHITE
CN-FM1
LOWER FAN MOTOR
(BLACK)
(2-WAY VALVE)
M M
1
CN-ACL
RY-V1
AC-BLK01
(OPTIONAL)
4
W
W
RELAY
6
W
RY-HOT
FG2 (GREEN)
BL
ELECTRONIC CONTROLLER (SUB)
CN-ACN (BLACK)
FG1 (GREEN)
(WHITE)
(BLACK)
AC-BLK CN-BLK
(BLACK)
(WHITE) (BLUE)
CN-WHT
MAGNETIC COIL
2
1
(WHITE)
HEATER
ELECTRO
(BLACK)
CN-WHT
(WHITE)
ELECTRO
5
NOISE FILTER
(GRAY)
CAPACITOR
1
HIGH PRESSURE SENSOR
2 3
DISCHARGE TEMP.
1
COMPRESSOR
1
CN-TH1CN-DIS
W (YELLOW)
(blue)
R
ELECTRO MAGNETIC COIL (MAIN EXPANSION VALVE)
R
T3.15A L250V
COMMUNICATION
AC-L
CIRCUIT
1
BL
RECTIFICATION
W
(WHITE) (RED)
DCP
2
CN-RY1
SWITCHING POWER
SUPPLY CIRCUIT
RECTIFICATION
CIRCUIT
PFC
CIRCUIT
DCN-IN
AC-C
(BLUE)
DCN
(BLACK)
DCN2
(BLACK)
FUSE1
1
4
7
6
5
7
6
5
4
2
CN-PSW1
V
UU(RED)
P
N
V(BLUE)
T
O
INDOOR
UNIT
(BLUE)
(BLACK)
3~
FG201
(GREEN)
G
MS
M
R
DCP-IN
(WHITE)
BL
(CAPACITOR) ELECTRONIC CONTROLLER
AC-C
(BLACK)
B
REACTOR
GR
BLBL
DCN-OUT
CIRCUIT
W
R
B
BL
Y
CIRCUIT
CIRCUIT
R
AIR TEMP. SENSOR
(THERMISTOR)
(15k, 3950)
OUTDOOR PIPE TEMP.
DEFROST TEMP.
TERMINAL
BOARD
HIGHPRESSURESWITCH
R138
5.6k
13V
G1
Q27 E
C
B10k
4.7k
Q25
E
C
B
10k
4.7k
C72
1000p
50V
R168
4.42k R170
10k
1%
1/10W
1%
1/10W
15V_2
5V
15V_2
R318
2k
E C
B10k
4.7k
E
C
B
10k
4.7k
15V_2
5V
15V_2
*R376
*R373*R372
*C183
*Q36
*Q35
1 2 3 4
R358
20k
C220
1µ
16V
5V
*C169
CN-HPS
RED
*CN-TH2*CN-TH3
*CN-EV
EVA EXIT TEMP.
SENSOR(THERMISTOR)
(4.96k, 3800)
SENSOR(THERMISTOR)
(4.96k, 3800)
SENSOR(THERMISTOR)
(4.96k, 3800)
SENSOR(THERMISTOR)
(50k, 3950)
12
*R385
*C214
5V
12
*R103
*C48
5V
6
12345
1 2 3 4 5 6 7
16 15 14 13 12 11 10
13V
IC8
C84
0.047µ
25V
AK
AK
AK
AK
D33
D34
D35
D36
1 2 3 4 5 6 7
16 15 14 13 12 11 10
IC7
G2
C160
0.01µ
50V
C159
0.01µ
50V
R100
15k
1%
1/10W
R101
15k
1%
1/10W
C46
1µ
6.3V
C45
1µ
6.3V
1234
5V
12
C47
1µ
6.3V
R102
4.99k
1/10W
1%
5V
*CN-FM2

Installation Instruction
Indoor Unit
Select the Best Location
There should not be any heat source or steam
near the unit.
A place where air circulation in the room is good.
A place where drainage can be easily done.
A place where noise prevention is taken into
consideration.
Do not install the unit near the door way.
Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
Recommended installation height for indoor unit
shall be at least 800 mm.
Must install on a vertical wall.
When install electrical equipment at wooden
building of metal lath or wire lath, according to
electrical facility technical standard, no electrical
contact between equipment and building is
allowed. Insulator must be installed in between.
Do not install the unit at outdoor. This is designed
for indoor installation only.
100 mm
or more
100 mm
or more
100 mm
or more
Required space for installation
How To Fix Installation Plate
The mounting wall is strong and solid enough to
prevent it from vibration.
(Unit in mm)
55
200
756
16070
Indoor Unit
body
1556 from
ground
Installation
plate 1
Installation
plate 4
Bolt -
size M8
WallWall More than 375 More than 375
The centre of installation plate should be at more than
375 mm at right and left of the wall.
The distance from installation plate edge to ground
should more than 1556 mm.
Always mount the installation plate horizontally
plate by aligning the marking thread and using a
level gauge.
Mount the installation plate on the wall with 6 sets
of plug, bolt and washer (all non-supply) with size
M8.
To Drill A Hole In The Wall And
Install A Sleeve Of Piping
1. Insert the piping sleeve to the hole.
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15 mm
from the wall.
CAUTION
When the wall is hollow, please be sure to use the sleeve
for tube assembly to prevent dangers caused by mice
biting the connection cable.
4. Finish by sealing the sleeve with putty or
caulking compound at the final stage.
15 mm
Putty or caulking compound
ø70 mm
through hole
Indoor
Sleeve
for tube
assembly
Approx. 5 - 7 mm
Bushing for tube
assembly
Wall
Outdoor
Indoor Unit Installation
Access to Internal Components
WARNING
This section is for authorized and licensed electrician/water
system installer only. Work behind the front plate secured by
screws must only be carried out under supervision of qualified
contractor, installation engineer or service person.
Please follow the steps below for take out front plate.
Before removing the front plate of indoor unit, always
switch off all power supply (i.e. indoor unit power
supply, heater power supply and Tank Unit power
supply).
1. Remove the 2 mounting screws which located at
bottom of the front plate.

2. Gently pull the lower section of the front plate
towards you to remove the front plate from left and
right hooks.
3. Hold the left edge and right edge of front plate to
lift up front plate from hooks.
Hook
Lift up
Screws
Install the indoor unit
1. Engage the slots on the indoor unit to the hooks of
installation plate
1
. Ensure the hooks are properly
seated on the installation plate by moving it left
and right.
2. Fix the screws
5
to the holes on the hooks of
installation plate
4
, as illustrated below.
Installation plate
Indoor unit back
Slots
Wall
Hooks
Installation plate
Screws
Note: Do not lift the
Indoor Unit by holding the
refrigerant and water pipes
to prevent damage of the
pipes.
1
4
5
Water Piping Installation
The minimum requirement of water in the system
is 50 litres. If this value could not be achieved,
please install additional buffer tank (field supply).
Water inlet and water outlet in indoor unit are used
for connection to water circuit. Please request a
licensed technician to install this water circuit.
This water circuit must comply with all relevant
European and national regulations, i.e. IEC/EN
61770.
Be careful not to deform the piping to excessive
force when doing piping connection job.
Use Rp 1 ¼" nut for both water inlet and outlet
connection and clean all pipings with tap water
before connecting to the indoor unit.
Cover the pipe end to prevent dirt and dust when
inserting it through a wall.
Choose proper sealer which can withstand the
pressures and temperatures of the system.
If an existing tank is to be connected to this indoor
unit, ensure the pipes are clean before water pipe
installation is carried out.
Be sure to use two spanners to tighten the
connection. Tighten the nuts with torque wrench:
117.6N•m.
To r q u e w r e n c h
Indoor unit
Spanner
If non-brass metallic piping is used for installation,
make sure to insulate the pipes to prevent
galvanic corrosion.
Make sure to insulate the water circuit pipes to
prevent reduction of heating capacity.
After installation, check the water leakage
condition in connection area during test run.
Water Inlet
Water Outlet
CAUTION
Do not over tighten, over tightening cause water leakage.
Refrigerant Pipe Installation
1 Please make flare after inserting flare nut (located
at joint portion of tube assembly) onto the copper
pipe. (In case of using long piping)
2 Do not use pipe wrench to open refrigerant piping.
Flare nut may be broken and cause leakage. Use
proper spanner or ring wrench.
3 Connect the piping:
Align the center of piping and sufficiently
tighten the flare nut with fingers.
Be sure to use two spanners to tighten the
connection.
Further tighten the flare nut with torque
wrench in specified torque as stated in the
table.

Torque wrench
Spanner or
Wrench
Piping size (Torque)
Gas Liquid
ø15.88 mm (5/8”) [65 N•m] Ø9.52 mm (3/8”) [42 N•m]
Liquid Refrigerant Pipe Gas Refrigerant Pipe
CAUTION
Do not over tighten, over tightening cause water leakage.
CAUTION
Please take extra precaution when open the control board cover
6
and control board
7
for indoor unit installation and servicing.
Failure to do so may cause injury.
CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter and then remove
the burrs.
2. Remove the burrs by using reamer. If burrs is
not removed, gas leakage may be caused.
Turn the piping end down to avoid the metal
powder entering the pipe.
3. Please make flare after inserting the flare nut
onto the copper pipes.
When properly flared, the internal surface
of the flare will evenly shine and be of even
thickness. Since the flare part comes into
contact with the connections, carefully check
the flare finish.
 Improper flaring 
Inclined Surface
damaged
CrackedUneven
thickness
1. To cut 2. To remove burrs 3. To flare
Bar
Red arrow mark
Handle
Core
Yoke
Clamp handle
Bar 0 – 0.5 mm
Copper
pipe
Reamer
Point down
Pipe
Drain Elbow and Hose
Installation
Fix the drain elbow
2
and packing
3
to the bottom
of indoor unit, as shown in below illustration.
Use inner diameter 17 mm drain hose in the
market.
This hose must to be installed in a continuously
downward direction and in a frost-free
environment.
Guides this hose’s outlet to outdoor only.
Do not insert this hose into sewage or drain pipe
that may generate ammonia gas, sulfuric gas, etc.
If necessary, use hose clamp to further tighten the
hose at drain hose connector to prevent leakage.
Water will drip from this hose, therefore the outlet
of this hose must be installed in an area where the
outlet cannot become blocked.
Packing
Drain Elbow
3
2
Pressure Relief Valve Drainage
Pipework
Connect a drain hose to the pressure relief valve
hose outlet.
This hose must to be installed in a continuously
downward direction and in a frost-free
environment.
Guides this hose’s outlet to outdoor only.
Do not insert this hose into sewage hose or
cleaning hose that may generate ammonia gas,
sulfuric gas, etc.
If necessary, use hose clamp to further tighten the
hose at drain hose connector to prevent leakage.
Water will drip from this hose, therefore the outlet
of this hose must be installed in an area where the
outlet cannot become blocked.
Pressure relief valve
hose outlet
Connect The Cable To The Indoor
Unit
WARNING
This section is for authorised and licensed electrician only. Work
behind the Control Board Cover
6
secured by screws must
only be carried out under supervision of qualified contractor,
installation engineer or service person.
Open the Control Board Cover
6
Please follow the steps below to open control board
cover. Before opening the control board cover of
indoor unit, always switch off all power supply (i.e.
indoor unit power supply, heater power supply and
Tank Unit power supply).
1. Remove the 6 mounting screws at the control
board cover.
2. Swing the control board cover to the right hand
side.

Screws
Screws
Fixing of Power Supply Cord
and Connecting Cable
1. Connecting cable between Indoor Unit and
Outdoor Unit shall be approved polychloroprene
sheathed 4 × min 4.0 mm2flexible cord, type
designation 60245 IEC 57 or heavier cord.
Ensure the colour of wires of Outdoor Unit and
the terminal no. are the same to the Indoor
Unit respectively.
Earth wire shall be longer than other wires as
shown in the figure for the electrical safety in
case of the slipping out of the cord from the
Holder (Clamper).
2. An isolating device must be connected to the
power supply cable.
Isolating device (disconnecting means) should
have minimum 3.0 mm contact gap.
Connect the approved polychloroprene
sheathed power supply 1 cord and power
supply 2 cord and type designation 60245 IEC
57 or heavier cord to the terminal board, and
to the other end of the cord to isolating device
(Disconnecting means). See below table for
cable size requirement.
Power Supply
Cord Cable Size Isolating Devices
Recommended
RCD
1 3 × min 4.0
mm230A 30mA, 2P, type A
2 3 × min 4.0
mm230A 30mA, 2P, type A
3. To avoid the cable and cord being damaged by
sharp edges, the cable and cord must be passed
through a bushing (located at the bottom of
Control Board) before terminal board. The bushing
must be used and must not be removed.
Terminals on the Outdoor Unit 123
Colour of w ires (Connect ing ca bles)
Terminals on the Indoor Unit LN L
1
N
1
123
(Power Supply Cord)
Terminals on the isolating
devices from power supply
(Disconnecting means)
LN L
1
N
1
Indoor Unit/
Outdoor Unit
connection
Power Supply 1 Power Supply 2
Power Supply Cord
Holder
(Clamper)
Terminal Board
RCCB/ELCB
*1 *1
Connecting Cable
Terminal screw Tightening torque cN•m {kgf•cm}
M4 157~196 {16~20}
M5 196~245 {20~25}
*1 - Earth wire must be longer than other cables for safety reasons
Wire Stripping and Connecting
Requirement
Wire stripping
5mm or
more
(gap between
wires)
No loose strand
when insert
Indoor/outdoor
connecting
terminal board
10 ± 1mm
ACCEPT PROHIBITED
Conductor
over insert
Conductor not
fully insert
Conductor
fully insert
PROHIBITED
Connecting Requirement
WH-SDC12H6E5, WH-SDC16H6E5
The equipment's power supply 1 complies with
IEC/EN 61000-3-12 provided that the short circuit
power SSC is greater than or equal to 2200 kW at
the interface point between the user's supply and
the public system. It is the responsible of the
installer or user of the equipment to ensure, by
consultation with the distribution network operator
if necessary, that the equipment is connected only
to a supply with a short short circuit power SSC
greater than or equal to 2200 kW.
The equipment's power supply 1 complies with
IEC/EN 61000-3-11 and shall be connected to a
suitable supply net work, having service current
capacity 100A per phase. Please liaise with
supply authority that the service current capacity
at the interface point is sufficient for the
installation of the equipment.
The equipment's power supply 2 complies with
IEC/EN 61000-3-12.
The equipment's power supply 2 complies with
IEC/EN 61000-3-11 and shall be connected to
suitable supply network, with the following
maximum permissible system impedance Zmax =
0.271at the interface. Please liaise with supply
authority to ensure that the power supply 2 is
connected only to a supply of that impedance or
less.

56
11.1.6 Installation Of Remote Controller
As Room Thermostat
Remote Controller
3
mounted to the Indoor Unit
can be moved to the room and serve as Room
Thermostat.
11.1.6.1 Installation Location
Install at the height of 1 to 1.5 m from the floor
(Location where average room temperature can
be detected).
Install vertically against the wall.
Avoid the following locations for installation.
1. By the window, etc. exposed to direct sunlight
or direct air.
2. In the shadow or backside of objects deviated
from the room airflow.
3. Location where condensation occurs (The
Remote Controller is not moisture proof or
drip proof.)
4. Location near heat source.
5. Uneven surface.
Keep distance of 1 m or more from the TV, radio
and PC. (Cause of fuzzy image or noise)
11.1.6.2 Remote Controller Wiring
1
2
Terminal for Remote Controller wiring
Remote Controller
Indoor unit
Remote Controller wiring
(field supply)
•
No polarity
Remote Controller cable shall be (2 × min 0.3
mm2), of double insulation PVC-sheathed or
rubber sheathed cable. Total cable length shall be
50 m or less.
Be careful not to connect cables to other terminals
of Indoor Unit (e.g. power source wiring terminal).
Malfunction may occur.
Do not bundle together with the power source
wiring or store in the same metal tube. Operation
error may occur.
11.1.6.3 Remove The Remote Controller
From Indoor Unit
1. Remove the top case from the bottom case.
Bottom
case
Flat-blade
screwdriver
Insert the
driver and
slightly turn.
2. Remove the wiring between Remote controller
and Indoor Unit terminal. Remove the bottom case
from the Control board cover by loosening the
screws. (3 pieces)
Disconnect the
Remote controller
w
iring
Claw
(2 places)
11.1.6.4 Mounting The Remote
Controller
For exposed type
Preparation: Make 2 holes for screws using a driver.
UP
Cut here with
a nipper and
remove the burr
with a file.
Mount the top case.
•
Align the claws of the top
case and then align the claws
of the bottom case.
Hole for screw
Screw
(field supply)
Claw (2 places)
Pass through
the hole
Bottom case
(Back side)
Top case
(Back side)
Remote controller terminal board
Remove the coating. Approx. 6 mm
Remove the sheath. Approx. 180 mm.
Make sure the wiring connection is in the
correct direction.
Clamper
(field supply)
Claw (2 places)
Wall to which
the remote
controller is
fixed
Mount the bottom case to
the wall.
Connect the remote control
wiring
•
Arrange the wires along the groove
of the case.
For embedded type
Preparation: Make 2 holes for screws using a driver.

57
UP
Avoid the wire
being caught.
Mount the top case.
•
Align the claws of the top
case and then align the claws
of the bottom case.
Hole for
screw
Screw
(field supply)
Claw (2 places)
Bottom case
(Back side)
Top case
(Back side)
Remote controller
terminal board
Remove the coating.
Approx. 6 mm
Make sure the wiring
connection is in the correct
direction.
Claw (2 places)
Mount the bottom case
to the wall.
•
Pass the wire through the hole
in the centre of the bottom case.
Connect the remote
control wiring
11.1.6.5 Replace The Remote Controller
Cover
Replace the existing Remote controller cover with
Remote controller cover
6
to close the hole left
after remove the Remote controller.
1. Release the Remote controller cover’s hooks from
behind the front plate.
Front plate
Hook (6 places)
Existing Remote
controller cover
2. Press from front to fix the Remote controller cover
6
on the front plate.
Front plate
Hook (6 places)
Remote
controller
cover 6
11.1.7 Charging The Water
Make sure all the piping installations are properly
done before carry out below steps.
1. Turn the plug on the Air Purge Valve
9
outlet
anticlockwise by one complete turn from fully
closed position.
A
ir purge valve
Plug (turn
anticlockwise by
one complete turn)
9
2. Set the Pressure Relief Valve
13
level “DOWN”.
Pressure relief
valve
Lever
Turn up
Pressure relief valve
13
13
3. Start filling water (with pressure more than 0.1
MPa (1 bar)) to the Indoor Unit via water inlet.
Stop filling water if the free water flow through
Pressure Relief Valve drain hose.
4. Turn ON the power supply and make sure Water
Pump
16
is running.
5. Check and make sure no water leaking at the tube
connecting points.
11.1.8 Reconfirmation
WARNING
Be sure to switch off all power supply before performing each of the
below checkings. Before obtaining access to terminals, all supply
circuits must be disconnected.
11.1.8.1 Check Water Pressure
*(0.1 MPa = 1 bar)
Water pressure should not lower than 0.05 MPa (with
inspects the Water Pressure Gauge
14
). If necessary
add tap water into Tank Unit. Refer to Tank unit
installation instruction for details on how to add water.
11.1.8.2 Check Pressure Relief Valve
13
Check for correct operation of Pressure Relief
Valve
13
by turning on the lever to become
horizontal.
If you do not hear a clacking sound (due to water
drainage), contact your local authorized dealer.
Push down the lever after finish checking.
In case the water keeps drained out from the unit,
switch off the system, and then contact your local
authorized dealer.

Expansion Vessel
12
Pre
Pressure Checking
[Lower limit water volume of the system]
Please ensure the capacity of the circulating water of
the total system including the capacity of the indoor
unit is more than 50 L.
If the water capacity is insufficient, during deice
operation, the water temperature is lowered and the
water will freeze in the system's component leading to
product failure.
[Upper limit water volume of the system]
The indoor unit has a build-in Expansion Vessel with
10 L air capacity and initial pressure of 1 bar.
Total amount of water in the system should be below
260 L.
If the total amount of water is more than 260 L, please
add expansion vessel (field supply).
The expansion vessel capacity required for the system
can be calculated from the formula below.
V : Required gas volume <expansion vessel volume L>
Vo : System total water volume <L>
: Water expansion rate 5 60˚C = 0.0171
P
1
: Expansion tank filling pressure = (100) kPa
P
2
: System maximum pressure = 300 kPa
V =
xVo
1 - 98 + P
1
98 + P
2


( ) Please confirm at actual place
The gas volume of the sealed type expansion
vessel is presented by <V>.
It's advised to add 10% margin for required gas
volume of calculation.
Water expansion rate table
Water temperature (°C) Water expansion rate
з
10 0.0003
20 0.0019
30 0.0044
40 0.0078
50 0.0121
60 0.0171
70 0.0228
80 0.0291
90 0.0360
[Adjustment of the initial pressure of the expansion
vessel when there is a difference in installation height]
If the height difference between the indoor unit and
the highest point of the system water circuit (H) is
more than 7m, please adjust the initial pressure of the
expansion vessel (Pg) according to the following
formula.
Pg= (H* 10+30) kPa
Check RCCB/ELCB
Ensure the RCCB/ELCB set to “ON” condition before
check RCCB/ ELCB.
Turn on the power supply to the Indoor Unit.
This testing could only be done when power is
supplied to the Indoor Unit.
WARNING
Be careful not to touch parts other than RCCB/ELCB test button
when the power is supplied to Indoor Unit. Else, electrical shock
may happen. Before obtaining access to terminals, all supply
circuits must be disconnected.
Push the “TEST” button on the RCCB/ELCB. The
lever would turn down and indicate “0”, if it
functions normal.
Contact authorized dealer if the RCCB/ELCB
malfunction.
Turn off the power supply to the Indoor Unit.
If RCCB/ELCB functions normal, set the lever to
“ON” again after testing finish.
This product contains fluorinated greenhouse gasses.
Refrigerant type: R410A (GWP=2088)
Amount: 2.85 kg (5.951 ton CO2equivalent)
(The amount do not include the additional refrigerant
when refrigerating piping length extended. Please
refer to adhered label on outdoor unit for exact
amount of refrigerant used and actual tonnes of CO2
equivalent.)
Test Run
1. Fill up the Tank Unit with water. For details refer to
Tank Unit installation instruction and operation
instruction.
2. Set ON to the Indoor Unit and RCCB/ELCB. Then,
for control panel operation please refers to air-to-
water heatpump operation instruction.
3. For normal operation, pressure gauge
14
reading
should be in between 0.05 MPa and 0.3 MPa.
4. After test run, please clean the Water Filter Set
15
.
Reinstall it after finish cleaning.
Reset Overload Protector
11
Overload Protector
11
serves the safety purpose to
prevent the water over heating. When the Overload
Protector
11
trip at high water temperature, take
below steps to reset it.
1. Take out the cover.
2. Use a test pen to push the centre button gently in
order to reset the Overload Protector
11
.
3. Fix the cover to the original fixing condition.
Use test pen to push
this button for reset
Overload protector .
11