Panasonic WH-MDC09C3E8 User manual

© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1010088C2
Monobloc Air-to-Water Heatpump System
Monobloc Unit
WH-MDC09C3E8
WH-MDC12C9E8
WH-MDC14C9E8
WH-MDC16C9E8
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
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 product or products dealt with in this service information by anyone else could result in serious injury or death.

2
TABLE OF CONTENTS
PAGE PAGE
1. Safety Precautions .............................................3
2. Specifications .....................................................5
2.1 WH-MDC09C3E8...........................................5
2.2 WH-MDC12C9E8...........................................7
2.3 WH-MDC14C9E8...........................................9
2.4 WH-MDC16C9E8.........................................11
3. Features.............................................................13
4. Location of Controls and Components..........14
4.1 Monobloc Unit ..............................................14
5. Dimensions .......................................................21
5.1 Monobloc Unit ..............................................21
6. Refrigeration And Water Cycle Diagram........22
7. Block Diagram ..................................................24
7.1 WH-MDC09C3E8.........................................24
7.2 WH-MDC12C9E8 WH-MDC14C9E8
WH-MDC16C9E8.........................................25
8. Wiring Connection Diagram ............................26
8.1 WH-MDC09C3E8.........................................26
8.2 WH-MDC12C9E8 WH-MDC14C9E8
WH-MDC16C9E8.........................................28
9. Electronic Circuit Diagram ..............................30
9.1 WH-MDC09C3E8.........................................30
9.2 WH-MDC12C9E8 WH-MDC14C9E8
WH-MDC16C9E8.........................................32
10. Printed Circuit Board .......................................34
10.1 Water System ..............................................34
10.2 Refrigerant System ......................................36
11. Installation Instruction Monobloc Unit...........38
11.1 Select the Best Location ..............................40
11.2 Mono Bloc Unit Installation ..........................40
11.3 Piping Installation.........................................41
11.4 Connect The Cord And Cable To Mono Bloc
Unit...............................................................42
12. Operation and Control .....................................48
12.1 Basic Function .............................................48
12.2 Water Pump .................................................60
12.3 Pump Down Operation ................................60
12.4 Flow Switch..................................................60
12.5 Force Heater Mode Operation .....................61
12.6 Monobloc Unit Safety...................................61
12.7 Auto Restart Control ....................................61
12.8 Indication Panel ...........................................62
12.9 Back-Up Heater Control...............................62
12.10Tank Booster Heater Control .......................63
12.11Three Way Valve Control.............................63
12.12Sterillization Mode........................................63
12.13Quiet Operation............................................63
12.14Solar Operation (Optional) ...........................64
12.15External Room Thermostat Control
(Optional) .................................................... 67
12.16Two ways valve control............................... 68
13. Protection Control........................................... 69
13.1 Protection Control for All Operations .......... 69
13.2 Protection Control for Heating Operation.... 71
13.3 Protection Control for Cooling Operation.... 71
14. Servicing Mode ................................................ 72
14.1 Test Run ..................................................... 72
14.2 Proper Pump Down Procedure................... 72
14.3 How to Adjust Water Flow Rate.................. 72
14.4 Expansion Vessel Pre Pressure
Checking ..................................................... 72
15. Maintenance Guide.......................................... 73
16. Troubleshooting Guide................................... 75
16.1 Refrigeration Cycle System ........................ 75
16.2 Relationship between the Condition of the
Monobloc Unit and Pressure and Electric
Current ........................................................ 76
16.3 Breakdown Self Diagnosis Function ........... 77
16.4 Error Codes Table....................................... 78
16.5 Self-diagnosis Method ................................ 80
17. Disassembly and Assembly Instructions ... 113
17.1 To Remove The Cabinet Front Plate ........ 113
17.2 To Remove The Cabinet Top Plate .......... 113
17.3 To Remove The Cabinet Rear Plate......... 114
17.4 To Remove Pressure Gauge .................... 114
17.5 To Remove RCCB .................................... 114
17.6 To Remove Transformer and Electronic
Controller Board........................................ 115
17.7 To Remove Pressure Relief Valve............ 115
17.8 To Remove Flow Switch ........................... 116
17.9 To Remove Water Pump .......................... 116
17.10To Remove Bottle Complete..................... 117
18. Technical Data ............................................... 118
18.1 Operation Characteristics ......................... 118
18.2 Heating Capacity Table............................. 126
18.3 Cooling Capacity Table............................. 127
18.4 Hydraulic Pump Performance................... 127
19. Exploded View and Replacement Parts
List .................................................................. 128
19.1 WH-MDC09C3E8 WH-MDC12C9E8
WH-MDC14C9E8 WH-MDC16C9E8
(Refrigerant System)................................. 128
19.2 WH-MDC09C3E8 WH-MDC12C9E8
WH-MDC14C9E8 WH-MDC16C9E8
(Water System) ......................................... 133

3
CAUTION
WARNING
WARNING
1. Safety Precautions
Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing for Monobloc Air-to-Water
Heatpump System (here after referred to as “Monobloc unit”).
Electrical work and water installation works must be installed or serviced by a licensed electrician and licensed
water system installer respectively. Be sure to use the correct rating and main circuit for the model 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 or servicing due to ignoring of the instruction
will cause harm or damage, and the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
The items to be followed are classified by the symbols:
Carry out test run to confirm that no abnormality occurs after the servicing. 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.
1. Do not modify the machine, part, material during repairing service.
2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring unit.
3. Do not wrench the fasten terminal. Pull it out or insert it straightly.
4. Engage dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water leakage,
electrical shock or fire.
5. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.
6. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage,
refrigerant leakage, fire or electrical shock.
7. Install at a flat horizontal, strong and firm location which is able to withstand the Monobloc unit’s weight. If the strength is not enough or
installation is not properly done, the set will drop and cause injury.
8. Do not install Monobloc unit near handrail of veranda. When installing Monobloc unit at veranda of high rise building, child may climb
up to Monobloc unit and cross over the handrail and causing accident.
9. For electrical work, follow the local national wiring standard, regulation and the 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.
10. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone.
Otherwise, it may cause electric shock in case equipment breakdown or insulation breakdown.
11. Do not use joint cable for Monobloc unit connection cable. Use specified Monobloc unit connection cable, refer to Installation Instructions
CONNECT THE CABLE TO THE MONOBLOC UNIT and connect tightly for Monobloc 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.
12. When install or relocate Monobloc unit, do not let any substance other than the specified refrigerant, eg. 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.
13. 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
of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm. It is desirable that the amount of
residual oil is less than 40 mg/10 m.
14. 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.
15. During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping while compressor is
operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion,
injury etc.
16. After completion of the installation servicing confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant
contacts with fire.
17. 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.
18. Only use the supplied or specified installation parts, else, it may cause unit vibrate loose, water/refrigerant leakage, electrical shock or fire.
This symbol denotes item that is PROHIBITED from doing.

4
CAUTION
WARNING
19. The unit is only for use in a closed portable water system. Utilization in an open water circuit or non-portable water circuit, may lead to
excessive corrosion of the water piping and risk of incubating bacteria colonies, particularly Legionella, in water.
20. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
21. Do not dismantle refrigerant piping using pipe wrench. It might deform the piping and cause the unit to malfunction.
22. Select a location where in case of water leakage, the leakage will not cause damage to other properties.
23. Do not locally purchase electrical parts of the product for the purpose of installation, service, maintenance and etc. They might cause
electrical shock or fire.
24. Do not branch the power from terminal block to heater tape. Overloaded terminal block will cause electrical shock or fire.
25. Installation or servicing work. It may need four or more people to carry out the installation or servicing work.
26. 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.
27. 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.
1. Do not install the Monobloc unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at
surrounding of the Monobloc unit, it may cause fire.
2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
3. It may need four or more persons to carry out the installation work. The weight of Monobloc unit might cause injury if carried by less than four
persons.
4. Do not touch Monobloc unit air inlet and aluminium fin. It may cause injury.
5. Select an installation location which is easy for maintenance.
6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F - 70°F (30°C - 40°C) higher. Please use a
high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C). Pb free solder
will tend to splash when heated too high (about 1100°F / 600°C).
7. Power supply connection to Mono bloc 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.
For WH-MDC09C3E8:
- Power 1: Use approved 20A 4-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power 2: Use approved 15/16A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
For WH-MDC12C9E8,WH-MDC14C9E8,WH-MDC16C9E8:
- Power 1: Use approved 20A 4-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power 2: Use approved 15/16A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power 3: Use approved 15/16A 4-poles circuit breaker with a minimum contact gap of 3.0mm.
8. Do not release refrigerant during piping work for installation, servicing, re-installation and during repairing a refrigeration parts. Take
care of the liquid refrigerant, it may cause frostbite.
9. Do not install this appliance in a laundry room or other high humidity location. This condition will cause rust and damage to the unit.
10. Make sure the insulation of power supply cord does not contact to hot part (i.e. refrigerant piping, water piping) to prevent from
insulation failure (melt).
11. Do not sit, step or place anything on the unit, you may fall down accidentally.
12. Do not touch the sharp aluminum fins or edges of metal parts.
If you are required to handle sharp parts during installation or servicing, please wear hand glove.
Sharp parts may cause injury.
13. After installation, check the water leakage condition in connection area during test run. If leakage occur, it will cause damage to other
properties.
14. The unit described in this manual is designed for use in a closed water system only. Utilization in an open water circuit may lead to
excessive corrosion of the water piping.

5
2. Specifications
2.1 WH-MDC09C3E8
Item Unit Refrigerant System
Performance Test Condition EUROVENT
kW 7.00
BTU/h 23900
Cooling Capacity
kcal/h 6020
W/W 3.11
EER
kcal/hW 2.68
kW 9.00
BTU/h 30700
Heating Capacity
kcal/h 7740
W/W 4.74
COP
kcal/hW 4.07
Air Flow m3/min (ft3/min) Cooling: 89.5 (3160)
Heating: 76.8 (2710)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3FV50S (1200)
Refrigerant (R410A) kg (oz) 2.30 (81.2)
Liquid mm (inch) 9.52 (3/8) Pipe Diameter
Gas mm (inch) 15.88 (5/8)
Type Hermetic Motor
Motor Type Brushless (4-poles)
Compressor
Rated Output kW 4.30
Type Propeller Fan
Material PP
Motor Type Induction (8-poles)
Input Power W —
Output Power W 60
Fan
Fan Speed rpm Cooling: 540 (Top Fan) 580 (Bottom Fan)
Heating: 490 (Top Fan) 530 (Bottom Fan)
Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row × Stage × FPI 2 × 51 × 18
Heat Exchanger
Size (W × H × L) mm 881.5 × 1295.4 × 44
Item Unit Monobloc Unit
Height mm (inch) 1410 (55.5)
Width mm (inch) 1283 (50.5)
Dimension
Depth mm (inch) 320 (12.6)
Net Weight kg (lbs) 157 (346)
dB-A Cooling: 49
Heating: 49
Noise Level
Power Level dB Cooling: 67
Heating: 66
ø Three
V 400
Power Source (Phase, Voltage, Cycle)
Hz 50
Input Power kW Cooling: 2.25
Heating: 1.90
Max. Current/Max. Input Power Heatpump Unit
(Heatpump unit + Back-up heater) A/kW 7.5 (11.8)/4.94(7.94)
Starting Current A 3.4

6
Item Unit Monobloc Unit
Running Current A Cooling: 3.4
Heating: 2.9
Back-up Heater: Max. Current/Max. Input Power A/kW Common ELCB to Heat Pump
Tank Heater [1 Phase, 230V]: Max. Current/
Max. Input Power A/kW 13.0/3.00
Power Factor % Cooling: 96
Heating: 95
Power factor means total figure of compressor and outdoor fan motor.
Number of core -
Power Cord
Length m (ft) -
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Water System
Performance Test Condition EUROVENT
Outdoor Ambient °C Cooling: 16 ~ 43
Heating: -20 ~ 35
Operation Range
Water Outlet °C Cooling: 5 ~ 20
Heating: 25 ~ 55
Internal Pressure Differential kPa Cooling: 10.0
Heating: 15.0
Liquid mm (inch) 9.52 (3/8)
Refrigerant Pipe Diameter
Gas mm (inch) 15.88 (5/8)
Inlet mm (inch) 30 (1-3/16)
Water Pipe Diameter
Outlet mm (inch) 30 (1-3/16)
Water Drain Hose Inner Diameter mm (inch) 15.00 (19/32)
Motor Type Capacitor Run Induction Motor (5 μF)
No. of Speed 3
Pump
Input Power W 180
Type Brazed Plate
No. of Plates 60
Size (H x W x L) mm 93 × 100 × 325
Hot Water Coil
Water Flow Rate l/min (m3/h) Cooling: 20.1 (1.2)
Heating: 25.8 (1.6)
Pressure Relief Valve Water Circuit kPa Open: 190, Close: 186 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)
Volume I 10
Expansion Vessel
MWP bar 1
Capacity of Integrated Electric Heater kW 3.00
Note:
Cooling capacities are based on outdoor air temperature of 35°C Dry Bulb with controlled 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 water inlet temperature of 30°C and water outlet temperature of 35°C.
Specification are subjected to change without prior notice for further improvement.

7
2.2 WH-MDC12C9E8
Item Unit Refrigerant System
Performance Test Condition EUROVENT
kW 10.00
BTU/h 34100
Cooling Capacity
kcal/h 8600
W/W 2.78
EER
kcal/hW 2.39
kW 12.00
BTU/h 40900
Heating Capacity
kcal/h 10320
W/W 4.67
COP
kcal/hW 4.02
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) 2.30 (81.2)
Liquid mm (inch) 9.52 (3/8) Pipe Diameter
Gas mm (inch) 15.88 (5/8)
Type Hermetic Motor
Motor Type Brushless (4-poles)
Compressor
Rated Output kW 4.30
Type Propeller Fan
Material PP
Motor Type Induction (8-poles)
Input Power W —
Output Power W 60
Fan
Fan Speed rpm Cooling: 600 (Top Fan) 640 (Bottom Fan)
Heating: 510 (Top Fan) 550 (Bottom Fan)
Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row × Stage × FPI 2 × 51 × 18
Heat Exchanger
Size (W × H × L) mm 881.5 × 1295.4 × 44
Item Unit Monobloc Unit
Height mm (inch) 1410 (55.5)
Width mm (inch) 1283 (50.5)
Dimension
Depth mm (inch) 320 (12.6)
Net Weight kg (lbs) 157 (346)
dB-A Cooling: 50
Heating: 50
Noise Level
Power Level dB Cooling: 68
Heating: 67
ø Three
V 400
Power Source (Phase, Voltage, Cycle)
Hz 50
Input Power kW Cooling: 3.60
Heating: 2.57
Max. Current/Max. Input Power Heatpump Unit
(Heatpump unit + Back-up heater) A/kW 8.8/5.85 (Separate ELCB)
Starting Current A 5.3
Running Current A Cooling: 5.3
Heating: 3.9

8
Item Unit Monobloc Unit
Back-up Heater: Max. Current/Max. Input Power A/kW 13.0/9.00
Tank Heater [1 Phase, 230V]: Max. Current/
Max. Input Power A/kW 13.0/3.00
Power Factor % Cooling: 97
Heating: 96
Power factor means total figure of compressor and outdoor fan motor.
Number of core -
Power Cord
Length m (ft) -
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Water System
Performance Test Condition EUROVENT
Outdoor Ambient °C Cooling: 16 ~ 43
Heating: -20 ~ 35
Operation Range
Water Outlet °C Cooling: 5 ~ 20
Heating: 25 ~ 55
Internal Pressure Differential kPa Cooling: 21.0
Heating: 27.5
Liquid mm (inch) 9.52 (3/8)
Refrigerant Pipe Diameter
Gas mm (inch) 15.88 (5/8)
Inlet mm (inch) 30 (1-3/16)
Water Pipe Diameter
Outlet mm (inch) 30 (1-3/16)
Water Drain Hose Inner Diameter mm (inch) 15.00 (19/32)
Motor Type Capacitor Run Induction Motor (5 μF)
No. of Speed 3
Pump
Input Power W 180
Type Brazed Plate
No. of Plates 60
Size (H x W x L) mm 100 × 93 × 325
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: 190, Close: 186 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)
Volume I 10
Expansion Vessel
MWP bar 1
Capacity of Integrated Electric Heater kW 9.00
Note:
Cooling capacities are based on outdoor air temperature of 35°C Dry Bulb with controlled 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 water inlet temperature of 30°C and water outlet temperature of 35°C.
Specification are subjected to change without prior notice for further improvement.

9
2.3 WH-MDC14C9E8
Item Unit Refrigerant System
Performance Test Condition EUROVENT
kW 11.50
BTU/h 39200
Cooling Capacity
kcal/h 9890
W/W 2.61
EER
kcal/hW 2.25
kW 14.00
BTU/h 47800
Heating Capacity
kcal/h 12040
W/W 4.50
COP
kcal/hW 3.87
Air Flow m3/min (ft3/min) Cooling: 97.8 (3450)
Heating: 84.0 (2970)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3FV50S (1200)
Refrigerant (R410A) kg (oz) 2.30 (81.2)
Liquid mm (inch) 9.52 (3/8) Pipe Diameter
Gas mm (inch) 15.88 (5/8)
Type Hermetic Motor
Motor Type Brushless (4-poles)
Compressor
Rated Output kW 4.30
Type Propeller Fan
Material PP
Motor Type Induction (8-poles)
Input Power W —
Output Power W 60
Fan
Fan Speed rpm Cooling: 630 (Top Fan) 670 (Bottom Fan)
Heating: 540 (Top Fan) 580 (Bottom Fan)
Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row × Stage × FPI 2 × 51 × 18
Heat Exchanger
Size (W × H × L) mm 881.5 × 1295.4 × 44
Item Unit Monobloc Unit
Height mm (inch) 1410 (55.5)
Width mm (inch) 1283 (50.5)
Dimension
Depth mm (inch) 320 (12.6)
Net Weight kg (lbs) 157 (346)
dB-A Cooling: 52
Heating: 51
Noise Level
Power Level dB Cooling: 70
Heating: 68
ø Three
V 400
Power Source (Phase, Voltage, Cycle)
Hz 50
Input Power kW Cooling: 4.40
Heating: 3.11
Max. Current/Max. Input Power Heatpump Unit
(Heatpump unit + Back-up heater) A/kW 9.4/6.25 (Separate ELCB)
Starting Current A 6.6
Running Current A Cooling: 6.6
Heating: 4.7

10
Item Unit Monobloc Unit
Back-up Heater: Max. Current/Max. Input Power A/kW 13.0/9.00
Tank Heater [1 Phase, 230V]: Max. Current/
Max. Input Power A/kW 13.0/3.00
Power Factor % Cooling: 97
Heating: 96
Power factor means total figure of compressor and outdoor fan motor.
Number of core -
Power Cord
Length m (ft) -
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Water System
Performance Test Condition EUROVENT
Outdoor Ambient °C Cooling: 16 ~ 43
Heating: -20 ~ 35
Operation Range
Water Outlet °C Cooling: 5 ~ 20
Heating: 25 ~ 55
Internal Pressure Differential kPa Cooling: 25.0
Heating: 36.0
Liquid mm (inch) 9.52 (3/8)
Refrigerant Pipe Diameter
Gas mm (inch) 15.88 (5/8)
Inlet mm (inch) 30 (1-3/16)
Water Pipe Diameter
Outlet mm (inch) 30 (1-3/16)
Water Drain Hose Inner Diameter mm (inch) 15.00 (19/32)
Motor Type Capacitor Run Induction Motor (5 μF)
No. of Speed 3
Pump
Input Power W 180
Type Brazed Plate
No. of Plates 60
Size (H x W x L) mm 100 × 93 × 325
Hot Water Coil
Water Flow Rate l/min (m3/h) Cooling: 33.0 (2.0)
Heating: 40.1 (2.4)
Pressure Relief Valve Water Circuit kPa Open: 190, Close: 186 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)
Volume I 10
Expansion Vessel
MWP bar 1
Capacity of Integrated Electric Heater kW 9.00
Note:
Cooling capacities are based on outdoor air temperature of 35°C Dry Bulb with controlled 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 water inlet temperature of 30°C and water outlet temperature of 35°C.
Specification are subjected to change without prior notice for further improvement.

11
2.4 WH-MDC16C9E8
Item Unit Refrigerant System
Performance Test Condition EUROVENT
kW 12.20
BTU/h 41600
Cooling Capacity
kcal/h 10490
W/W 2.54
EER
kcal/hW 2.19
kW 16.00
BTU/h 54600
Heating Capacity
kcal/h 13760
W/W 4.23
COP
kcal/hW 3.64
Air Flow m3/min (ft3/min) Cooling: 97.8 (3450)
Heating: 90.0 (3180)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3FV50S (1200)
Refrigerant (R410A) kg (oz) 2.30 (81.2)
Liquid mm (inch) 9.52 (3/8) Pipe Diameter
Gas mm (inch) 15.88 (5/8)
Type Hermetic Motor
Motor Type Brushless (4-poles)
Compressor
Rated Output kW 4.30
Type Propeller Fan
Material PP
Motor Type Induction (8-poles)
Input Power W —
Output Power W 60
Fan
Fan Speed rpm Cooling: 630 (Top Fan) 670 (Bottom Fan)
Heating: 580 (Top Fan) 620 (Bottom Fan)
Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row × Stage × FPI 2 × 51 × 18
Heat Exchanger
Size (W × H × L) mm 881.5 × 1295.4 × 44
Item Unit Monobloc Unit
Height mm (inch) 1410 (55.5)
Width mm (inch) 1283 (50.5)
Dimension
Depth mm (inch) 320 (12.6)
Net Weight kg (lbs) 157 (346)
dB-A Cooling: 54
Heating: 53
Noise Level
Power Level dB Cooling: 72
Heating: 70
ø Three
V 400
Power Source (Phase, Voltage, Cycle)
Hz 50
Input Power kW Cooling: 4.80
Heating: 3.78
Maximum Input Power For Monobloc Unit kW 5.74
Max. Current/Max. Input Power Heatpump Unit
(Heatpump unit + Back-up heater) A/kW 9.9/6.59 (Separate ELCB)

12
Item Unit Monobloc Unit
Starting Current A 7.2
Running Current A Cooling: 7.2
Heating: 5.7
Back-up Heater: Max. Current/Max. Input Power A/kW 13.0/9.00
Tank Heater [1 Phase, 230V]: Max. Current/
Max. Input Power A/kW 13.0/3.00
Power Factor % Cooling: 97
Heating: 96
Power factor means total figure of compressor and outdoor fan motor.
Number of core -
Power Cord
Length m (ft) -
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Water System
Performance Test Condition EUROVENT
Outdoor Ambient °C Cooling: 16 ~ 43
Heating: -20 ~ 35
Operation Range
Water Outlet °C Cooling: 5 ~ 20
Heating: 25 ~ 55
Internal Pressure Differential kPa Cooling: 28.0
Heating: 47.5
Liquid mm (inch) 9.52 (3/8)
Refrigerant Pipe Diameter
Gas mm (inch) 15.88 (5/8)
Inlet mm (inch) 30 (1-3/16)
Water Pipe Diameter
Outlet mm (inch) 30 (1-3/16)
Water Drain Hose Inner Diameter mm (inch) 15.00 (19/32)
Motor Type Capacitor Run Induction Motor (5 μF)
No. of Speed 3
Pump
Input Power W 180
Type Brazed Plate
No. of Plates 60
Size (H x W x L) mm 100 × 93 × 325
Hot Water Coil
Water Flow Rate l/min (m3/h) Cooling: 35.0 (2.1)
Heating: 45.9 (2.8)
Pressure Relief Valve Water Circuit kPa Open: 190, Close: 186 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)
Volume I 10
Expansion Vessel
MWP bar 1
Capacity of Integrated Electric Heater kW 9.00
Note:
Cooling capacities are based on outdoor air temperature of 35°C Dry Bulb with controlled 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 water inlet temperature of 30°C and water outlet temperature of 35°C.
Specification are subjected to change without prior notice for further improvement.

13
3. Features
Inverter Technology
- Energy saving
High Efficiency
Compact Design
Environment Protection
- Non-ozone depletion substances refrigerant (R410A)
Easy to use remote control
Weekly Timer setting
Quality Improvement
- Random auto restart after power failure for safety restart operation
- Gas leakage protection
- Prevent compressor reverse cycle
- Inner protector to protect compressor
Serviceability Improvement
- Breakdown Self Diagnosis function
- System Status Check Buttons for servicing purpose
- System Pumpdown Button for servicing purpose
- Front maintenance design for Monobloc unit
Operation Condition
Water outlet temperature (°C) Outdoor Ambient temperature (°C)
Maximum 20 43
COOLING Minimum 5 16
Maximum 55 35
HEATING Minimum 25 -20
NOTICE : When the outdoor temperature is out of the above temperature range, the heating capacity will drop significantly
and Monobloc unit might stop for protection control.

14
4. Location of Controls and Components
4.1 Monobloc Unit

15
4.1.1 Main Components
Water Pump: The pump circulates the water in the water circuit.
Pressure Gauge: The manomater allows read out of the water pressure in the water circuit.
Flow Switch: The flow switch checks the flow in the water circuit and protects the heat exchanger
against high pressure built-up and the pump against damage.
Pressure Relief Valve: The pressure relief valve prevents excessive water pressure in the water circuit (>190kPa).
Electric Heater: Additional heating capacity to the system when water and ambient temp is low.
Expansion Vessel: Storage for exessive water.

16
4.1.2 Location of Control
4.1.2.1 Remote Control
The user interface allows the installer and user to setup, use and maintain the unit.

17

18

19
4.1.2.2 Weekly Timer Setting

20
4.1.2.3 Setting Up the Special Functions