Panasonic WH-MXF09D3E8 User manual

© Panasonic Appliances Air-Conditioning (M) Sdn. Bhd. 2012.
Unauthorized copying and distribution is a violation of law.
Order No: PAPAMY1205143CE
Mono bloc Unit
WH-MXF09D3E8
WH-MXF12D9E8
(WH-MXF09D3E8-1)
(WH-MXF12D9E8-1)
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.
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbit, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.

2
TABLE OF CONTENTS
1. Safety Precautions .............................................3
2. Specifications .....................................................5
2.1 WH-MXF09D3E8 (WH-MXF09D3E8-1) ......5
2.2 WH-MXF12D9E8 (WH-MXF12D9E8-1) ......7
3. Features...............................................................9
4. Location of Controls and Components..........10
4.1 Mono bloc Unit............................................10
5. Dimensions .......................................................17
5.1 Mono bloc Unit............................................17
6. Refrigeration And Water Cycle Diagram........18
7. Block Diagram ..................................................20
7.1 WH-MXF09D3E8 (WH-MXF09D3E8-1) ....20
7.2 WH-MXF12D9E8 (WH-MXF12D9E8-1) ....21
8. Wiring Connection Diagram ............................22
8.1 WH-MXF09D3E8 (WH-MXF09D3E8-1) ....22
8.2 WH-MXF12D9E8 (WH-MXF12D9E8-1) ....24
9. Electronic Circuit Diagram ..............................26
9.1 WH-MXF09D3E8 (WH-MXF09D3E8-1) ....26
9.2 WH-MXF12D9E8 (WH-MXF12D9E8-1) ....28
10. Printed Circuit Board .......................................30
10.1 Water System .............................................30
10.2 Refrigerant System.....................................32
11. Installation Instruction.....................................34
11.1 Select The Best Location ...........................36
11.2 Mono bloc Unit Installation .........................36
11.3 Piping Installation .......................................37
11.4 Connect The Cord And Cable To Mono bloc
Unit .............................................................38
12. Operation and Control .....................................44
12.1 Basic Function ............................................44
12.2 Water Pump................................................55
12.3 Pump Down Operation ...............................56
12.4 Flow Switch ................................................56
12.5 Force Heater Mode Operation....................56
12.6 Mono Bloc Unit Safety................................57
12.7 Auto Restart Control...................................57
12.8 Indication Panel..........................................57
12.9 Back-Up Heater Control .............................58
12.10 Tank Booster Heater Control......................58
12.11 Base Pan Heater Control (Optional)...........59
12.12 Three Way Valve Control ...........................59
12.13 Sterillization Mode ......................................60
12.14 Quiet Operation ..........................................60
12.15 Anti Freeze Control.....................................60
12.16 Solar Operation (Optional) .........................61
12.17 External Room Thermostat Control
(Optional)....................................................64
13. Protection Control............................................65
13.1 Protection Control For All Operations.........65
13.2 Protection Control for Heating
Operation................................................... 67
14. Servicing Mode ................................................ 68
14.1 Test Run .................................................... 68
14.2 Proper Pump Down Procedure ................. 68
14.3 How To Adjust Water Flow Rate ............... 68
14.4 Expansion Vessel Pre Pressure
Checking.................................................... 68
15. Maintenance Guide.......................................... 69
16. Troubleshooting Guide................................... 71
16.1 Refrigeration Cycle System....................... 71
16.2 Relationship Between The Condition Of
The Mono bloc Unit And Pressure And
Electric Current.......................................... 72
16.3 Breakdown Self Diagnosis Function.......... 73
16.4 Error Codes Table ..................................... 74
16.5 Self-diagnosis Method............................... 76
17. Disassembly and Assembly Instructions ... 110
17.1 To Remove The Cabinet Front Plate....... 110
17.2 To Remove The Cabinet Top Plate......... 110
17.3 To Remove The Cabinet Rear Plate ....... 111
17.4 To Remove Pressure Gauge................... 111
17.5 To Remove RCCB................................... 111
17.6 To Remove Transformer and Electronic
Controller Board ...................................... 112
17.7 To Remove Pressure Relief Valve and
Air Purge Valve........................................ 112
17.8 To Remove Flow Switch.......................... 113
17.9 To Remove Water Pump......................... 113
17.10 To Remove Bottle Complete ................... 114
18. Technical Data ............................................... 115
18.1 Operation Characteristics ........................ 115
18.2 Heating Capacity Table ........................... 117
18.3 Hydraulic Pump Performance ................. 117
19. Exploded View and Replacement Parts
List .................................................................. 118
19.1 (Refrigerant System) ............................... 118
19.2 (Water System)........................................ 123

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CAUTION
WARNING
WARNING
1. Safety Precautions
Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
Electrical work and water installation work 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 or material during repairing service.
2. If wiring unit is supplied as repairing part, do not repair or connect the wire even partial wire break. Exchange the whole wiring unit.
3. Do not wrench the fasten terminal. Pull it out or insert it straightly.
4. Do not install Mono bloc unit near handrail of veranda. When installing Mono bloc unit at veranda of high rise building, child may climb
up to Mono bloc unit and cross over the handrail and causing accident.
5. Do not use unspecified cord, modified cord, join 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.
6. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.
7. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
8. Do not sit or step on the unit, you may fall down accidentally.
9. Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth thus causing suffocation.
10. Do not use pipe wrench to install refrigerant pipe. Using pipe wrench may deform the pipes and cause unit malfunction.
11. Do not purchase unauthorized electrical parts for installation, service, maintenance and etc.. They might cause electrical shock or fire.
12. Do not modify the wiring of Mono bloc unit for installation of other components (i.e. heater, etc). Overloaded wiring or wire connection
points may cause electrical shock or fire.
13. 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.
14. For water circuit installation work, follow to relevant European and national regulations (including EN61770) and local plumbing and building
regulation codes.
15. Must engage an authorized dealer or specialist for installation. If installation is defective, it will cause water leakage, electrical shock or fire.
16. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
17. Only use the supplied or specified installation parts. Else, it may causes Mono bloc unit vibrate, fall, water leakage, electrical shock or fire.
18. Install at a flat, strong and firm location which is able to withstand the Mono bloc unit’s weight. If the location is slanting, or strength is not
enough the set will fall and cause injury.
This symbol denotes item that is PROHIBITED from doing.

4
CAUTION
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. The unit is only for use in a closed water system. Utilization in an open water system may lead to excessive corrosion of the water piping and
risk of incubating bacteria colonies, particularly Legionella, in water.
21. If there is any doubt about the installation procedure or operation, always contact the authorized dealer for advice and information.
22. Select a location where in case of water leakage, the leakage will not cause damage to other properties.
23. 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.
24. This installation may be subjected to building regulation approval applicable to respective country that may require to notify the local authority
before installation.
25. Any work carried out on the Mono bloc unit after removing the front panel which is secured by screws, must be carried out under the
supervision of authorized dealer and licensed installation contractor.
26. This unit must be properly earthed, the electrical earth must not be connected to a gas pipe, water pipe, the earth of a 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 Mono bloc unit.
27. When replace refrigeration circuit components, confirm on usage of specified refrigerant type. Using of refrigerant other than the specified type
may cause product damage, burst and injury etc.
28. Do not add or replace refrigerant other than the specified type. Equipment may damage or deteriorate in safety due to usage of other
refrigerant.
1. Do not install the Mono bloc unit in areas where there is a risk of flammable gas leakage. There is a risk of fire if flammable gas
accumulates near or around the Mono bloc unit.
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. Make sure the power supply cord does not contact with hot part (i.e. water piping). High temperature may cause insulator of power
supply cord damage hence electrical shock or fire.
4. 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.
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. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water leakage may happen and may cause
damage to properties of the user.
7. The piping installation work must be flushed before the Mono bloc unit is connected to remove contaminants. Contaminants may damage the
Mono bloc unit components.
8. Select an installation location where it is accessible for maintenance.
9. 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 9kW models:
- Power Supply 1: Use approved 20A 4-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power Supply 2: Use approved 15/16A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
For 12kW/14kW/16kW models:
- Power Supply 1: Use approved 20A 4-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power Supply 2: Use approved 15/16A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power Supply 3: Use approved 15/16A 4-poles circuit breaker with a minimum contact gap of 3.0mm.
10. Ensure the correct polarity is maintained throughout all wiring. Otherwise, it will cause electrical shock or fire.
11. After installation, the installer is obliged to verify correct operation of the Mono bloc unit. Check the connection point for water leakage during
test run. If leakage occurs, it will cause damage to other properties.
12. Installation work.
Four or more people are required to carry out the installation work. The weight of Mono bloc unit might cause injury if carried by less than four
people.

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2. Specifications
2.1 WH-MXF09D3E8 (WH-MXF09D3E8-1)
Item Unit Refrigerant System
Performance Test Condition EN14511
Heating Condition (Ambient/Water) A7W35 A2W35
Heating Capacity kW 9.00 9.00
BTU/h 30700 30700
kcal/h 7740 7740
COP W/W 4.74 3.53
kcal/hW 4.07 3.04
Air Flow m3/min (ft3/min) 76.8 (2710)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3 FV50S (1200)
Refrigerant (R410A) kg (oz) 2.30 (81.2)
Pipe Diameter Liquid mm (inch) 9.52 (3/8)
Gas mm (inch) 15.88 (5/8)
Compressor Type Hermetic Motor (Rotary)
Motor Type Brushless (4-poles)
Rated Output kW 4.30
Fan Type Propeller Fan
Material PP
Motor Type Induction (8-poles)
Input Power W -
Output Power W 60
Fan Speed rpm 490 (Top Fan) 530 (Bottom Fan)
Heat Exchanger Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row x Stage x FPI 2 x 51 x 18
Size (W x H x L) mm 881.5 x 1295.4 x 44
Item Unit Mono bloc Unit
Dimension Height mm (inch) 1410 (55-1/2)
Width mm (inch) 1283 (50-1/2)
Depth mm (inch) 320 (12-19/32)
Net Weight kg (lbs) 159 (351)
Noise Level dB-A 49
Power Level dB 66
Power Source (Phase, Voltage, Cycle) ø Three
V 400
Hz 50
Input Power kW 1.90 2.55
Maximum Input Power For Mono bloc Unit kW 6.85
Power Supply 1: Phase (ø) / Max.Current (A) / Max. Input Power (W) Three / 14.7 / 9.85k
Power Supply 2: Phase (ø) / Max.Current (A) / Max. Input Power (W) Single / 13.0 / 3.00k
Power Supply 3: Phase (ø) / Max.Current (A) / Max. Input Power (W) - / - / -
Starting Current A 2.9
Running Current A 2.9 3.9
Maximum Current For Mono bloc Unit A 10.4

6
Item Unit Mono bloc Unit
Power Factor % 95
Power factor means total figure of compressor and outdoor fan motor.
Power Cord Number of core -
Length m (ft) -
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Water System
Performance Test Condition EN14511
Operation Range Outdoor Ambient °C -20 ~ 35
Water Outlet °C 25 ~ 55
Internal Pressure Differential kPa 15.0
Refrigerant Pipe Diameter Liquid mm (inch) 9.52 (3/8)
Gas mm (inch) 15.88 (5/8)
Water Pipe Diameter Inlet mm (inch) 30 (1-3/16)
Outlet mm (inch) 30 (1-3/16)
Water Drain Hose Inner Diameter mm (inch) 15.00 (19/32)
Pump Motor Type Capacitor Run Induction Motor (5 µF)
No. of Speed 3
Input Power W 180
Hot Water Coil Type Brazed Plate
No. of Plates 60
Size (W x H x L) mm 93 x 100 x 325
Water Flow Rate l/min (m3/h) 25.8 (1.6)
Pressure Relief Valve Water Circuit kPa Open: 300, Close: 265 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)
Expansion Vessel Volume I 10
MWP bar 3
Capacity of Integrated Electric Heater kW 3.00
Note:
1. 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.
2. Specifications are subjected to change without prior notice for further improvement.

7
2.2 WH-MXF12D9E8 (WH-MXF12D9E8-1)
Item Unit Refrigerant System
Performance Test Condition EN14511
Heating Condition (Ambient/Water) A7W35 A2W35
Heating Capacity kW 12.00 12.00
BTU/h 40900 40900
kcal/h 10320 10320
COP W/W 4.67 3.40
kcal/hW 4.02 2.92
Air Flow m3/min (ft3/min) 80.0 (2830)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3 FV50S (1200)
Refrigerant (R410A) kg (oz) 2.30 (81.2)
Pipe Diameter Liquid mm (inch) 9.52 (3/8)
Gas mm (inch) 15.88 (5/8)
Compressor Type Hermetic Motor (Rotary)
Motor Type Brushless (4-poles)
Rated Output kW 4.30
Fan Type Propeller Fan
Material PP
Motor Type Induction (8-poles)
Input Power W -
Output Power W 60
Fan Speed rpm 510 (Top Fan) 550 (Bottom Fan)
Heat Exchanger Fin material Aluminium (Pre Coat)
Fin Type Corrugated Fin
Row x Stage x FPI 2 x 51 x 18
Size (W x H x L) mm 881.5 x 1295.4 x 44
Item Unit Mono bloc Unit
Dimension Height mm (inch) 1410 (55-1/2)
Width mm (inch) 1283 (50-1/2)
Depth mm (inch) 320 (12-19/32)
Net Weight kg (lbs) 159 (351)
Noise Level dB-A 50
Power Level dB 67
Power Source (Phase, Voltage, Cycle) ø Three
V 400
Hz 50
Input Power kW 2.57 3.53
Maximum Input Power For Mono bloc Unit kW 7.91
Power Supply 1: Phase (ø) / Max.Current (A) / Max. Input Power (W) Three / 11.9 / 7.91k
Power Supply 2: Phase (ø) / Max.Current (A) / Max. Input Power (W) Single / 13.0 / 3.00k
Power Supply 3: Phase (ø) / Max.Current (A) / Max. Input Power (W) Three / 13.0 / 9.00k
Starting Current A 3.9
Running Current A 3.9 5.3
Maximum Current For Mono bloc Unit A 11.9
Power Factor % 96

8
Item Unit Mono bloc Unit
Power factor means total figure of compressor and outdoor fan motor.
Power Cord Number of core -
Length m (ft) -
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Water System
Performance Test Condition EN14511
Operation Range Outdoor Ambient °C -20 ~ 35
Water Outlet °C 25 ~ 55
Internal Pressure Differential kPa 27.5
Refrigerant Pipe Diameter Liquid mm (inch) 9.52 (3/8)
Gas mm (inch) 15.88 (5/8)
Water Pipe Diameter Inlet mm (inch) 30 (1-3/16)
Outlet mm (inch) 30 (1-3/16)
Water Drain Hose Inner Diameter mm (inch) 15.00 (19/32)
Pump Motor Type Capacitor Run Induction Motor (5 µF)
No. of Speed 3
Input Power W 180
Hot Water Coil Type Brazed Plate
No. of Plates 60
Size (W x H x L) mm 100 x 93 x 325
Water Flow Rate l/min (m3/h) 34.4 (2.1)
Pressure Relief Valve Water Circuit kPa Open: 300, Close: 265 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)
Expansion Vessel Volume I 10
MWP bar 3
Capacity of Integrated Electric Heater kW 9.00
Note:
1. 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.
2. Specifications are subjected to change without prior notice for further improvement.

9
3. Features
Inverter Technology
oEnergy saving
High Efficiency
Compact Design
Environment Protection
oNon-ozone depletion substances refrigerant (R410A)
Easy to use remote control
Weekly Timer setting
Quality Improvement
oRandom auto restart after power failure for safety restart operation
oGas leakage protection
oPrevent compressor reverse cycle
oInner protector to protect compressor
Serviceability Improvement
oBreakdown Self Diagnosis function
oSystem Status Check Buttons for servicing purpose
oSystem Service Mode Button for servicing purpose
oFront maintenance design for Mono bloc unit
Operation Condition
Water outlet temperature (°C) Ambient temperature (°C)
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 Mono bloc unit might stop for protection control.

10
4. Location of Controls and Components
4.1 Mono bloc Unit

11
4.1.1 Main Components
Water pump : The pump circulates the water in the water circuit.
Pressure gauge : The manometer 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 (> 300kPa).
Electric Heater : Additional heating capacity to the system when water and ambient temp is low.
Expansion Vessel : Storage for excessive water.

12
4.1.2 Location of Control
4.1.2.1 Remote Control
Some functions described in this manual may not be applicable to your unit.
Consult your nearest authorized dealer for further information.
For normal operation, the , and buttons are not in use.

13

14
4.1.3 Setting Up The Special Functions
After initial installation, you can manually adjust the settings. The initial setting remains active until the user
changes it.
The remote control can be used for multiple installations. Some functions may not be applicable to your unit.
Ensure the operation LED is in OFF condition before setting.

15
4.1.4 Basic Operation 4.1.5 Advance Operation

16
4.1.6 Weekly Timer Setting

17
5. Dimensions
5.1 Mono bloc Unit

18
6. Refrigeration And Water Cycle Diagram

19

20
7. Block Diagram
7.1 WH-MXF09D3E8 (WH-MXF09D3E8-1)
(Water System) (Refrigerant System)
RCCB
POWER SUPPLY 1
3-phase
AC400V 50Hz
L1
FUSE1
FUSE2
FUSE2
FUSE3
MM
SSR1 RY-V3
SOLAR
SC
SC
WATER P U MP
RY-HT(L1)
BACKUP HEATER
RY-HT(L2) RY-HT(L3)
3-WAYS
VALV E SOLAR
3-WAYS
VALVE
M S
3 ~
M
1 ~
M
1 ~
NOISE FILTER
NOISE
FI LTER
REC TIFIC ATION
CIRCUI T
RECTIFIC ATION CIRCUI T
RECTIFIC ATION CIRCUI T
NOISE FILTERNOISE FILTERNOISE FILTER
L2 L3
N
RCCB
RELAY RELAY
PTC
REACTOR REACTOR CAPACITOR
POWER SUPPLY 2
Single phase
AC230V 50Hz
L
N
RY-V201
RY-PWR2
RY-HT1
HE ATER
HE ATER
4-W AY
VALVE
RY-HT2
RY-HO T
FUSE201 FUSE202 FUSE203
M
1 ~
1 2 3 4 5
BOOSTER HEATER
RELAY