Panasonic WH-MXF09D3E5 User manual

©Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011.
Unauthorized copying and distribution is a violation of law.
Order No. PHAAM1105118C2
Monobloc Air-to-Water Heatpump System
Monobloc Unit
WH-MXF09D3E5
WH-MXF12D6E5

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TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions -----------------------------------------------3
2 Specifications ------------------------------------------------------5
2.1. WH-MXF09D3E5-------------------------------------------5
2.2. WH-MXF12D6E5-------------------------------------------7
3Features--------------------------------------------------------------9
4 Location of Controls and Components------------------ 10
4.1. Monobloc Unit--------------------------------------------- 10
5 Dimensions ------------------------------------------------------- 17
5.1. Monobloc Unit--------------------------------------------- 17
6 Refrigeration And Water Cycle Diagram ---------------- 18
7 Block Diagram --------------------------------------------------- 20
7.1. WH-MXF09D3E5----------------------------------------- 20
7.2. WH-MXF12D6E5----------------------------------------- 21
8 Wiring Connection Diagram --------------------------------- 22
8.1. WH-MXF09D3E5----------------------------------------- 22
8.2. WH-MXF12D6E5----------------------------------------- 24
9 Electronic Circuit Diagram----------------------------------- 26
9.1. WH-MXF09D3E5----------------------------------------- 26
9.2. WH-MXF12D6E5----------------------------------------- 28
10 Printed Circuit Board ------------------------------------------ 30
10.1. Water System --------------------------------------------- 30
10.2. Refrigerant System -------------------------------------- 32
11 Installation Instruction Monobloc Unit------------------- 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----------------------------------------- 43
12.1. Basic Function -------------------------------------------- 43
12.2. Water Pump ----------------------------------------------- 50
12.3. Pump Down Operation --------------------------------- 50
12.4. Flow Switch------------------------------------------------ 50
12.5. Force Heater Mode Operation ------------------------ 51
12.6. Monobloc Unit Safety ----------------------------------- 51
12.7. Auto Restart Control------------------------------------- 51
12.8. Indication Panel------------------------------------------- 52
12.9. Back-Up Heater Control -------------------------------- 52
12.10. Tank Booster Heater Control -------------------------- 53
12.11. Three Way Valve Control------------------------------- 53
12.12. Sterillization Mode --------------------------------------- 53
12.13. Quiet Operation------------------------------------------- 53
12.14. Solar operation (Optional) ----------------------------- 54
12.15. External Room Thermostat Control (Optional)---- 57
13 Protection Control ---------------------------------------------- 58
13.1. Protection Control For All Operations--------------- 58
13.2. Protection Control For Heating Operation --------- 60
14 Servicing Mode -------------------------------------------------- 61
14.1. Test Run ---------------------------------------------------- 61
14.2. Proper Pump Down Procedure ----------------------- 61
14.3. How To Adjust Water Flow Rate---------------------- 61
14.4. Expansion Vessel Pre Pressure Checking--------- 61
15 Maintenance Guide --------------------------------------------- 62
16 Troubleshooting Guide---------------------------------------- 64
16.1. Refrigeration Cycle System --------------------------- 64
16.2. Relationship Between The Condition Of The
Monobloc Unit And Pressure And Electric
Current------------------------------------------------------ 65
16.3. Breakdown Self Diagnosis Function ---------------- 66
16.4. Error Codes Table --------------------------------------- 67
16.5. Self-diagnosis Method---------------------------------- 69
17 Disassembly and Assembly Instructions -------------102
17.1. To Remove The Cabinet Front Plate --------------102
17.2. To Remove The Cabinet Top Plate----------------- 102
17.3. To Remove The Cabinet Rear Plate ---------------103
17.4. To Remove Pressure Gauge ------------------------103
17.5. To Remove RCCB --------------------------------------103
17.6. To Remove Transformer and Electronic
Controller Board-----------------------------------------104
17.7. To Remove Pressure Relief Valve------------------104
17.8. To Remove Flow Switch ------------------------------105
17.9. To Remove Water Pump------------------------------105
17.10. To Remove Bottle Complete -------------------------105
18 Technical Data --------------------------------------------------106
18.1. Operation Characteristics ----------------------------106
18.2. Heating Capacity Table--------------------------------108
18.3. Hydraulic Pump Performance -----------------------108
19 Exploded View and Replacement Parts List----------109
19.1. (Refrigerant System)-----------------------------------109
19.2. (Water System)------------------------------------------ 114

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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.
• 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.
This indication shows the possibility of causing death or serious injury.
This indication shows the possibility of causing injury or damage to properties.
This symbol denotes item that is PROHIBITED from doing.
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.

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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 person.
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 the monobloc unit.
1. Power supply point should be in easily accessible place for power disconnection in case of emergency.
2. Must follow local national wiring standard, regulation and this installation instruction.
3. Strongly recommended to make permanent connection to a circuit breaker. It must be a double pole switch with a minimum
3.0mm gap.
- Use approved 30A circuit breaker for power supply 1
- Use approved 30A circuit breaker for power supply 2
- Use approved 15A/16A circuit breaker for power supply 3
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.

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2 Specifications
2.1. WH-MXF09D3E5
Item Unit Refrigerant System
Performance Test Condition EUROVENT
Heating Capacity kW 9.00
BTU/h 30700
kcal/h 7740
COP W/W 4.74
kcal/hW 4.07
Air Flow m3/min (ft3/min) 76.8 (2710)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3FV50S (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
Motor Type Brushless (4-poles)
Rated Output kW 3.00
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 ×Stage ×FPI 2 ×51 ×18
Size (W ×H ×L) mm 881.5 ×1295.4 ×44
Item Unit Monobloc Unit
Dimension Height mm (inch) 1410 (55.5)
Width mm (inch) 1283 (50.5)
Depth mm (inch) 320 (12.6)
Net Weight kg (lbs) 155 (342)
Noise Level dB-A 49
Power Level dB 66
Power Source (Phase, Voltage, Cycle) ø Single
V 230
Hz 50
Input Power kW 1.90
Maximum Input Power For Monobloc Unit kW 5.41
Power Supply 1: Phase (ø) / Max.Current (A) / Max. Input Power (W) Single / 25.0 / 5.41k
Power Supply 2: Phase (ø) / Max.Current (A) / Max. Input Power (W) Single / 26.0 / 6.00k
Power Supply 3: Phase (ø) / Max.Current (A) / Max. Input Power (W) - / - / -
Starting Current A 8.8
Running Current A 8.8
Maximum Current For Monobloc Unit A 25.0
Power Factor % 94
Power factor means total figure of compressor and outdoor fan motor.
Power Cord Number of core -
Length m (ft) -

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Note:
• 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.
Thermostat Electronic Control
Protection Device Electronic Control
Item Unit Water System
Performance Test Condition EUROVENT
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: 190, Close: 186 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)
Expansion Vessel Volume I 10
MWP bar 1
Capacity of Integrated Electric Heater kW 3.00
Item Unit Monobloc Unit

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2.2. WH-MXF12D6E5
Item Unit Refrigerant System
Performance Test Condition EUROVENT
Heating Capacity kW 12.00
BTU/h 41000
kcal/h 10320
COP W/W 4.67
kcal/hW 4.02
Air Flow m3/min (ft3/min) 80.0 (2830)
Refrigeration Control Device Expansion Valve
Refrigeration Oil cm3FV50S (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
Motor Type Brushless (4-poles)
Rated Output kW 3.00
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 ×Stage ×FPI 2 ×51 ×18
Size (W ×H ×L) mm 881.5 ×1295.4 ×44
Item Unit Monobloc Unit
Dimension Height mm (inch) 1410 (55.5)
Width mm (inch) 1283 (50.5)
Depth mm (inch) 320 (12.6)
Net Weight kg (lbs) 155 (342)
Noise Level dB-A 50
Power Level dB 67
Power Source (Phase, Voltage, Cycle) ø Single
V 230
Hz 50
Input Power kW 2.57
Maximum Input Power For Monobloc Unit kW 6.27
Power Supply 1: Phase (ø) / Max.Current (A) / Max. Input Power (W) Single / 29.0 / 6.27k
Power Supply 2: Phase (ø) / Max.Current (A) / Max. Input Power (W) Single / 26.0 / 6.00k
Power Supply 3: Phase (ø) / Max.Current (A) / Max. Input Power (W) Single / 13.0 / 3.00k
Starting Current A 11.9
Running Current A 11.9
Maximum Current For Monobloc Unit A 29.0
Power Factor % 94
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

8
Note:
• 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.
Item Unit Water System
Performance Test Condition EUROVENT
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: 190, Close: 186 and below
Flow Switch Magnetic Lead Switch
Protection Device A Residual Current Circuit Breaker (40)
Expansion Vessel Volume I 10
MWP bar 1
Capacity of Integrated Electric Heater kW 6.00

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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
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.
Water outlet temperature (°C) Ambient temperature (°C)
HEATING Maximum 55 35
Minimum 25 -20

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4 Location of Controls and Components
4.1. Monobloc Unit

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4.1.1. Main Components

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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.

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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.

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4.1.4. Basic Operation 4.1.5. Advance Operation

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4.1.6. Weekly Timer Setting

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5 Dimensions
5.1. Monobloc Unit

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6 Refrigeration And Water Cycle Diagram

19

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7 Block Diagram
7.1. WH-MXF09D3E5