Panasonic WH-SXC16F9E8 Service Manual
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Panasonic WH-SXC16F9E8 Service Manual

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Order No: PAPAMY1309119CE
Indoor Unit
Outdoor Unit
WH-SXC16F9E8
WH-UX16FE8
Destination
Europe
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.
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
© Panasonic Corporation 2013.

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Summary of Contents for Panasonic WH-SXC16F9E8

  • Page 1 PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Corporation 2013.

  • Page 2: Table Of Contents

    1. Safety Precautions ..........3 14. Servicing Guide ..........83 2. Specifications .............5 14.1 How to Take Out Front Plate ...... 83 WH-SXC16F9E8 WH-UX16FE8....5 14.2 How to Take Out Side Cabinet ....83 14.3 Test Run ............. 83 3. Features...............8 14.4 Proper Pump Down Procedure [SERVICE 4.

  • Page 3: Safety Precautions

    1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.  Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating and main circuit for the model installed. ...
  • Page 4 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.

  • Page 5: Specifications

    2. Specifications WH-SXC16F9E8 WH-UX16FE8 Item Unit Outdoor Unit Performance Test Condition EN 14511 Condition A35W7 (Ambient/Water) 12.20 Cooling Capacity BTU/h 41600 kcal/h 10490 2.57 Cooling EER kcal/hW 2.20 Condition A7W35 A2W35 (Ambient/Water) 16.00 16.00 Heating Capacity BTU/h 54600 54600 kcal/h...
  • Page 6 Item Unit Outdoor Unit ø Three Power Source (Phase, Voltage, Cycle) Condition A35W7 A7W35 A2W35 (Ambient/Water) Input Power Cooling: 4.76 Heating: 3.74 Heating: 5.21 Maximum Input Power For Heatpump System 10.27 Power Supply 1 : Phase (Ø) / Max. Current (A) / Max. Input Power (W) 3Ø...
  • Page 7 Item Unit Indoor Unit Volume Expansion Vessel Capacity of Integrated Electric Heater 9.00 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. ...

  • Page 8: Features

    3. 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 ...

  • Page 9: Location Of Controls And Components

    4. Location of Controls and Components Indoor Unit 4.1.1 Location of Control Water pressure gauge • Do not press or hit the glass cover using hard and sharp objects. Failure to do so may cause damage to the unit. • Ensure that the water pressure is between 0.05 and 0.3 MPa (0.1 MPa = 1 bar).
  • Page 10 4.1.2 To adjust initial settings Dealer Select menus and determine settings according to the system available in the household. It is recommended that all alterations of settings are done by an authorised dealer or specialist. Operation LED Display • After initial installation, you may manually adjust the settings. The initial setting remains active until the user changes it.
  • Page 11 Operation/settings to be done only by the authorised dealer/specialist. Dealer Operation/settings to be done by the authorised dealer/specialist or user. User Booster Heater To activate or deactivate the water tank’s booster heater. Note: If NO is selected, menu 11 is skipped. Booster Heater Delay Timer 20 minutes ~ To delay time for the booster heater to activate while the system is heating up...
  • Page 12 4.1.3 How to use User The system is turned off by an external switch. Turn on or off the system Press When the system is ON, the operation LED is lit and the actual water outlet temperature and outdoor ambient temperature are shown on the display.
  • Page 13 Operation/settings to be done only by the authorised dealer/specialist. Dealer Operation/settings to be done by the authorised dealer/specialist or user. User Dealer Display Temperature setting System temperature setting The system controls the temperature for each menu based on the outdoor ambient temperature. •...
  • Page 14 User Desired temperature setting Shifting the water temperature This easily shifts the water outlet temperature if the setting is undesirable. to enter the water temperature shifting mode. to change setting. to set the desired temperature. (temperature range: -5 °C ~ 5 °C) Temperature setting <Water outlet temperature>...

  • Page 15: Weekly Timer Setting

    Operation/settings to be done only by the authorised dealer/specialist. Dealer Operation/settings to be done by the authorised dealer/specialist or user. User User Weekly timer setting Promotes energy saving by allowing you to set up to 6 programmes in any given day. Lights up if Timer operation is selected Indicates the next timer operation programme...
  • Page 16 Dry Concrete Function • During construction to dry the concrete under a preset temperature. simultaneously and hold for 5 seconds until the display shows “ ”. (The display shows “ ”). to select day. Press to set the desired temperature. to confirm the selection.

  • Page 17: Outdoor Unit

    4.1.4 Main Components (Only applicable for WH- Control panel S**09/12/14/16*9E8) Pressure relief valve Cabinet front plate Flow switch Cabinet Pressure gauge Handle (2 pieces) Water pump Overload protector 1 phase RCCB/ELCB Connector name (4 pieces) (Only applicable for Water Outlet Heater assembly WH-S**09*3E8) Gas Refrigerant...

  • Page 18: Dimensions

    5. Dimensions Indoor Unit <Top View> <Front View> <Side View> 35 98 107 115 155 <Bottom View> 205.5 98.5 Relative position between the indoor unit and the installation plate <Front View> 213.5 213.5 140.7 140.7 Installation 306.4 Plate Indoor unit external dimensions line Unit: mm...

  • Page 19: Outdoor Unit

    Outdoor Unit <Top View> <Side view> <Front View> <Side View> 318.5 <Back view> Unit: mm...

  • Page 20: Refrigeration And Water Cycle Diagram

    6. Refrigeration and Water Cycle Diagram Outdoor Indoor Side Side Water Pressure Gauge Expansion Liquid Vessel Water Side Capillary Flow Expansion (3-Way Tube Switch Valve Strainer Strainer Valve) Subcooler Water Inlet (Connect Water Pipe Pump Sanitary Temp. Tank) Sensor Expansion Strainer Pipe Defrost...
  • Page 21 Room Thermo Fan Coil Unit (Heating / Cooling) Connect to Indoor Unit Panel Heater Unit (Heating) 3-Way Valve 2-Way Valve Floor Heating Panel (Heating) Heater 1 (3kW) To Water Inlet Indoor Unit From Water Outlet Cold Water Indoor Unit Supply Solar Unit Buffer Tank Unit...

  • Page 22: Block Diagram

    7. Block Diagram...

  • Page 23: Wiring Connection Diagram

    8. Wiring Connection Diagram Indoor Unit...

  • Page 24: Outdoor Unit

    Outdoor Unit...

  • Page 25: Electronic Circuit Diagram

    9. Electronic Circuit Diagram Indoor Unit...

  • Page 26: Outdoor Unit

    Outdoor Unit...

  • Page 27: Printed Circuit Board

    10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board CN-SOLAR CN-TH1 CN-TH2 CN-TH3 CN-FLOW CN-OLP2 CN-REMOTE2 CN-THERMO CN-PUMP2 CN-OLP1 CN-RCV2 CN-V3 CN-PWR CN-V2...
  • Page 28 10.1.2 Solar Printed Circuit Board (Optional)

  • Page 29: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board CN-FM1 CN-FM2 CN-V1 CN-HOT CN-RY2 CN-HT1 CN-TH2 CN-HT2 CN-PSW1 CN-RY1 CN-TH3 CN-TH1 CN-EV2 CN-HPS CN-DIS CN-EV1...
  • Page 30 10.2.2 Noise Filter Printed Circuit Board L1-IN FG201 L2-IN FG203 L1-OUT FG202 L2-OUT L3-OUT N-OUT N-IN L3-IN...

  • Page 31: Installation Instruction

    11. Installation Instruction 11.1 Select the Best Location INDOOR UNIT Min. Max. Piping size Rated Max. Additional Piping Piping  Model Length Elevation Refrigerant There should not be any heat source or steam Length Length Liquid (g/m) near the unit. WH-S*C09*3E8 ...

  • Page 32: Indoor Unit

    11.3 Indoor Unit 11.3.1 How to Fix Installation Plate 11.3.3 Indoor Unit Installation The mounting wall is strong and solid enough to prevent it from the vibration. 11.3.3.1 Install the Indoor Unit When connecting solar pump station cable Bolt - Wall Wall size M8...
  • Page 33 Make sure the fan coil unit is installed in the cooling circuit. wrench in specified torque as stated in the Room Thermostat (Field Supply) table. 2-Way Valve 3-Way Valve Kit Fan Coil Unit Panasonic Kit (Field (Complete with Piping size (Torque) Air-to-Water Model supply) Tank Unit)

  • Page 34: Connect The Cable To The Indoor Unit

    11.3.3.6 Drain Elbow and Hose Installation (Cooling model only)   Fix the drain elbow and packing to the bottom Water will drip from this hose, therefore the outlet of indoor unit, as shown in below illustration. of this hose must be installed in an area where the ...
  • Page 35 * note: - Two-way Valve shall be CE marking compliance component. - Maximum load for the valve is 9.8 VA. Three-Way Valve shall be spring and electronic type. Valve cable shall be (3 × min 0.5 mm ), of type designation 60245 IEC 57 or heavier, or similarly double insulation sheathed cable.
  • Page 36 Solar Pump Station Cable Detail A (Optional) Solar Three-way Valve Cable (Optional) External Control Cable (Optional) Tank Sensor Cable (Optional) Tank OLP Cable (Optional) Room Thermostat Cable (Optional) Booster Heater Cord (Optional) Earth wire must be longer than other cables for safety reasons.

  • Page 37: Outdoor Unit

    11.4 Outdoor Unit 11.4.1 Install the Outdoor Unit  After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). When installing at roof, please consider strong wind and earthquake.
  • Page 38 CUTTING AND FLARING THE PIPING Please cut using pipe cutter and then remove the burrs. 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. Please make flare after inserting the flare nut onto the copper pipes.

  • Page 39: Connect The Cable To The Outdoor Unit

    11.4.4 Connect the Cable to the Outdoor Unit (FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT) Remove the control board cover from the unit by loosening the screw. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed (6 × 1.5 ) flexible cord, type designation 60245 IEC 57 or heavier cord.
  • Page 40 11.4.6 DISPOSAL OF OUTDOOR UNIT DRAIN WATER  When a Drain elbow is used, please ensure to follow below: the unit should be placed on a stand which is taller than 50 mm. cover the 8 holes (ø20 mm) with Rubber cap (refer to illustration below).

  • Page 41: Operation And Control

    12. Operation and Control 12.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.
  • Page 42 Heat Mode Operation Time Chart 3 ways valve 2 ways valve Open Close Heat Pump Backup Heater ID W ater Pump Solar Request Solar 3 way valve W ater Outlet Temp Tank Temp. Timer for backup Backup Heater Backup Heater heater to on back Startup Timer Startup Timer...

  • Page 43: Cooling Operation

    12.1.3 Cooling Operation 12.1.3.1 Thermostat control  Compressor is OFF when Water Outlet Temperature – Internal Water Setting Temperature > -1.5°C for continuously 3 minutes.  Compressor is ON after waiting for 3 minutes, if the Water Outlet Temperature – Water Inlet Temperature (temperature at thermostat OFF is triggered) >3°C.
  • Page 44 12.1.4 Auto Mode Operation COOL MODE Heat To Cool Setting Temp. Cool To Heat Setting Temp. HEAT MODE Outdoor Ambient  Control details: To enable the unit to operate either heat or cool mode automatically, heat to cool set temperature and cool to heat set temperature can be set by control panel.
  • Page 45 12.1.5 Tank Mode Operation Control contents:  3 ways valve direction 3 ways valve switch to tank side during Tank Thermo ON condition. Switch 3 ways valve to room side when tank achieve Tank Thermo OFF temperature and SOLAR turn ON condition. ...
  • Page 46 57°C 57°C 57°C 57°C...
  • Page 48 12.1.6 Heat + Tank Mode Operation Setting 1: When Heating priority is set by control panel: 1. 3 ways valve control: o 3 ways valve switch to room side during External Room Thermo ON OR Solar 3 ways valve ON OR Tank Thermo OFF time, and switch to tank side at External Room Thermo OFF AND Solar 3 ways valve OFF.
  • Page 49 Characteristic of heat pump thermo ON/OFF under tank side condition Water Outlet Thermo condition Heat pump THERMO OFF TEMP: 1. Heat pump THERMO OFF TEMP = 53°C + [+4°C]. 2. Water outlet temperature > Heat pump THERMO OFF TEMP for continuous 90 seconds, heat pump OFF and water pump continue ON.
  • Page 50 Heat + Tank Mode (Heating priority set) Under Solar Priority Set Condition: Under Solar Priority Not Set Condition:...
  • Page 51 Setting 2: When heating priority is not set by control panel:  When Solar Priority is set/not set by control panel: 1. 3 ways valve control: 3 ways valve switch to room side during heating heat-up interval, and switch to tank side during tank heat-up interval.
  • Page 52 Characteristic of heat pump thermo ON/OFF under tank side condition Water Outlet Thermo condition Heat pump THERMO OFF TEMP: 1. Heat pump THERMO OFF TEMP = 53°C + [+4°C] 2. Water outlet temperature > Heat pump THERMO OFF TEMP for continuous 90 seconds, heat pump OFF but water pump continue ON.
  • Page 55 50°C 57°C 57°C 50°C...
  • Page 56 12.1.7 Cool + Tank Mode Operation 12.1.7.1 Cooling Priority SET 1. 3 ways valve control:  3 ways valve switch to room side during External Room Thermo ON OR Tank Thermo OFF time, and switch to tank side at External Room Thermo OFF AND Solar 3 ways valve OFF. 2.
  • Page 57 Characteristic of heat pump thermo ON/OFF under tank side condition a) Water Outlet Thermo Condition Heat pump THERMO OFF TEMP: 1. Heat pump THERMO OFF TEMP = [53°C] + [+4°C]. 2. Water outlet temperature > Heat pump THERMO OFF TEMP for continuous 3 minutes, heat pump OFF. Next THERMO ON TEMP: 1.
  • Page 58 12.1.7.2 Cooling Priority NOT SET 1. 3 ways valve control:  3 ways valve switch to room side during room cooling interval and switch to tank side during tank heat-up interval. Both modes will switch alternately. Tank mode is the initial running mode of this cool + tank mode. 2.
  • Page 59 Water Inlet Thermo Condition Heat pump THERMO OFF TEMP: Water inlet temperature > [55°C] for continuous 60 seconds, heat pump OFF. THERMO ON TEMP: THERMO ON TEMP = Water inlet temperature > [55°C]. c) Solar Operation Condition (Only under Solar Priority Set Condition) ...
  • Page 60 12.1.8 Setting Water Outlet Temperature for Heat Mode  The set temperature defines the parameters for the outdoor ambient temperature dependent operation of the unit. Where by the internal water setting temperature is determined automatically depending on the outdoor temperature. The colder outdoor temperatures will result in warmer water and vice versa. The user has the possibility to shift up or down the target water temperature by control panel setting.
  • Page 61 12.1.9 Water Temperature Thermo Shift Setting  Switchs are ignored during “PUMPDW” = ON.  Switchs are ignored during “STATUS” = ON. ▲ ▼  “ ”, “ ”, ”SELECT” switch are ignored if “SETTING” = OFF.  “CANCEL” switch is ignored if “SETTING” = OFF & “STATUS” = OFF. ...

  • Page 62: Water Pump

    12.2 Water Pump 12.2.1 Water Pump Control  Once the indoor unit is ON, the water pump will be ON immediately and no error judgement for 9 minutes. However, during this 9 minutes operation, if there is any abnormality cause at outdoor or malfunction, the compressor should be OFF immediately and restart delay after 3 minutes.
  • Page 63 12.2.2 A-class Pump Specification Power for drive DC280-373V Pump Power for control DC15±10% Control Signal DC0V-DC6V Feedback Speed (puls signal) 4puls/rotation Control signal is analog voltage (DC0V-6V) generated by microcomputer PWM port. Microcomputer can change analog voltage by changing PWM duty. 12.2.3 Water Flow Rate Setting ...

  • Page 64: Pump Down Operation [Service Mode: 01]

    12.2.4 Water Pump Speed Feedback Error  Basically pump speed feedback is control by micon.  When pump speed is below low limit or over high limit for a few seconds, micon detect pump error and system is stopped.  Error detection conditions: ...

  • Page 65: Indoor Unit Safety

    12.5 Indoor Unit Safety 12.5.1 Indoor Unit Safety Control When water pump is ON, the system will start checking flow switch status (ON/OFF). If the flow switch ON for 10 seconds, the system will check on the water inlet temperature for 10 seconds. If the water inlet temperature not exceeds 80°C, the water pump shall be continuously running with normal mode.

  • Page 66: Indoor Back-Up Heater Control

    12.8 Indoor Back-Up Heater Control 12.8.1 Indoor Electric Heater Control Normal Heating Mode Heater On condition: a. Heater switch is ON b. After Heatpump thermo ON for [30] mins c. After water pump operate [9] mins d. Outdoor air temperature < Outdoor set temperature for heater e.

  • Page 67: Tank Booster Heater Control

    12.9 Tank Booster Heater Control 12.9.1 Tank Booster Heater Control Heating operation condition: Heater OFF Tank set temperature + Tank set temperature + [-5°C] [+2°C] Heater ON Booster heater Turn On condition: After BOOSTER HEATER DELAY TIMER fulfill during heatpump startup time in tank mode, or during switching from heating heat-up interval to tank heat-up interval in heat + tank mode (heating priority not set).

  • Page 68: Sterilization Mode

    12.11 Sterilization Mode  Purpose: To sterilize water tank by setting the required boiling temperature.  Control start condition: Tank connection menu is set to YES by control panel. Sterilization menu is set to YES by control panel. Sterilization signal received from control panel by timer. ...

  • Page 69: Anti Freeze Control

    12.13 Anti Freeze Control  Anti freeze protection control menu can be set YES or NO by control panel.  In heatpump system, there are 3 types of anti freeze control: 1. Expansion tank anti-freeze control  Expansion tank anti freeze heater ON condition: Outdoor ambient temp.

  • Page 70: Solar Operation (Optional)

    12.14 Solar Operation (Optional) 12.14.1 Solar Operation: External solar heat source signal can be connect to unit for proper control of heat source switching during tank boiling time. Control according to preset whether solar priority is set or not. When tank connection is NOT set at SETTING mode, solar operation is disabled. When Pump A (from solar pump station) is detected On through connection Y3 and Y4, then the Solar pump 3 Way Valve is requested ON (Refer to figure below).
  • Page 71 Solar Operation Chart in different mode and condition Tank Mode (Solar Priority SET condition) Tank Mode (Solar Priority NOT SET condition)
  • Page 72 Heat + Tank Mode (Heating Priority NOT SET) (Solar Priority SET condition) When solar 3 way valve turn on during Tank interval, cancel Tank interval immediately and switch 3-way valve to the After heating/cooling interval, stand by to go in tank side after solar 3 way room side and start a heating/cooling interval.
  • Page 73 Heat + Tank Mode (Heating Priority SET) & Cool + Tank Mode 3 way valve Room Side Heatpump Booster heater Off due to solar 3 way valve on Booster heater Thermo Off Solar priority set Booster heater Solar priority not Solar request Solar off due to upper limit...

  • Page 74: External Room Thermostat Control (Optional)

    12.15 External Room Thermostat Control (Optional) Purpose: Better room temperature control to fulfill different temperature request by external room thermostat. Recommended external room thermostat: Maker Characteristic Siemen (REV200) Touch panel Siemen (RAA20) Analog Connection of external room thermostat: Wire Connection and thermo characteristic of Siemen REV200: Setting L/L1 (H) Heat Thermo...

  • Page 75: Three Ways Valve Control

    12.16 Three Ways Valve Control Purpose: - 3 ways valve is used to change flow direction of hot water from heat pump between heating side and tank side. Control contents: 3 ways valve switch Off: During 3 ways valve switch Off time, the hot water will provide heat capacity to heating side. 3 ways valve switch On: During 3 ways valve switch On time, the hot water will provide heat capacity to tank side.

  • Page 76: External Off/On Control

    12.18 External OFF/ON Control  Communication circuit between indoor unit and external controller is as per below. External Controller mico Panasonic CN-THERMO  Maximum length of communication cable is 20 meter.  Control content: External Control Switch Control Panel OFF/ON...

  • Page 77: Holiday Mode

    12.19 Holiday Mode  Purpose: Promotes energy saving by allowing the user to stop the system during holiday and enables the system to resume at the preset temperature after holiday.  Control details: Range of days can be set in holiday mode is from 1 to 999 days. After days of holiday have been set, heat pump will stop and only resume operation at 12.00am at the end of holiday countdown.

  • Page 78: Protection Control

    13. Protection Control 13.1 Protection Control for All Operations 13.1.1 Time Delay Safety Control The compressor will not start for three minutes after stop of operation. 13.1.2 30 Seconds Forced Operation Once the compressor starts operation, it will not stop its operation for 30 seconds. However, it can be stopped using control panel at indoor unit.
  • Page 79 13.1.6 Low Frequency Protection Control 2  When all the below conditions comply, the minimum compressor frequency will change to lower frequency. Temperature, T, for: Heating Cooling Outlet water (°C) T < 14 or T ≥ 48 T < 14 or T ≥ 30 Outdoor air (°C) T <...

  • Page 80: Protection Control For Heating Operation

    13.2 Protection Control for Heating Operation 13.2.1 Outdoor Air Temperature Control The maximum current value is regulated when the outdoor air temperature rises above 14°C in order to avoid compressor overloading. 13.2.2 Deice Operation When outdoor pipe temperature and outdoor air temperature is low, deice operation start where outdoor fan motor stop.
  • Page 81  Deice operation time diagram a. Deice mode 1 control: Free Free Compressor Four way valve ID pump OD fan Free Free Expansion valve Free max 9 minutes 30 seconds deice 1 b. Deice mode 2 control: Deice mode 2 Normal Heating Deice...

  • Page 82: Protection Control For Cooling Operation

    13.3 Protection Control for Cooling Operation 13.3.1 Outdoor Air Temperature Control  The Compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.  This control will begin 1 minute after the compressor starts. ...

  • Page 83: Servicing Guide

    14. Servicing Guide 14.1 How to Take Out Front Plate 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). Remove the 2 mounting screws which located at bottom of the front plate and 1 mounting screw at the front of the plate.

  • Page 84: How To Adjust Water Flow Rate [Service Mode: 02]

    14.5 How to Adjust Water Flow Rate [SERVICE MODE: 02] Before adjust the water flow rate, make sure that the total water volume in the installation is 50 litres minimum for heating side. The default setting is SPEED 3 (Only for WH-S**09*3E8 and WH-S**09/12*9E8) and SPEED 4 for WH- S**14/16*9E8.

  • Page 85: Dry Concrete [Service Mode: 03]

    14.8 Dry Concrete [SERVICE MODE: 03]  If Dry Concrete has been set, Dry Concrete status can be activated and monitored by following procedure. Press SERVICE button for 5 seconds. Press ▲ to enter menu Sr: 03 and press SET buttonto activate Dry Concrete function. Press OFF/ON button to quit setting.

  • Page 86: Maintenance Guide

    15. Maintenance Guide In order to ensure optimal performance of the unit, checks and inspections on the unit and the field wiring must be carried out regularly. Before carried out any maintenance or repair work, and removing the front plate of heat exchanger unit, always switch off all power supply (i.e.
  • Page 87 Reset overload protector Overload protector serves the safety purpose to prevent the water over heating. When the overload protector trip at high water temperature, take below steps to reset it. a. Take out OLP cover. b. Use a test pen to push the centre button gently in order to reset the Overload protector. c.

  • Page 88: Troubleshooting Guide

    16. Troubleshooting Guide 16.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan.

  • Page 89: Relationship Between The Condition Of The Air-To-Water Heatpump Indoor And Outdoor Units And Pressure And Electric Current

    16.2 Relationship between the Condition of the Air-to-Water Heatpump Indoor and Outdoor Units and Pressure and Electric Current Heating Mode Cooling Mode Condition of the Air-to-Water Heatpump Low Pressure High Pressure Electric current Low Pressure High Pressure Electric current indoor and during operation during operation outdoor units...

  • Page 90: Breakdown Self Diagnosis Function

    16.3 Breakdown Self Diagnosis Function 16.3.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  When abnormality occur during operation, the system will stop operation, and OFF/ON control panel LED will blink and error code will display on the control panel Timer display LCD. ...

  • Page 91: Error Codes Table

    16.4 Error Codes Table Diagnosis display Abnormality/Protection control Abnormality judgement Primary location to verify No abnormality detected — —  Indoor/outdoor connection wire  Indoor/outdoor PCB Indoor/Outdoor capacity unmatched 90s after power supply  Specification and combination table in catalogue ...
  • Page 92 Diagnosis display Abnormality/Protection control Abnormality judgement Primary location to verify  Outdoor air temperature sensor Outdoor air temperature sensor Continue for 5 sec. abnormality (defective or disconnected)  Water inlet temperature sensor Indoor water inlet temperature sensor Continue for 5 sec. abnormality (defective or disconnected) Outdoor discharge pipe temperature...

  • Page 93: Self-Diagnosis Method

    16.5 Self-diagnosis Method 16.5.1 Connection Capability Rank Abnormality (H12) Malfunction Decision Conditions: During startup operation of cooling and heating, the capability rank of indoor checked by the outdoor is used to determine connection capability rank abnormality. Malfunction Caused: Wrong model interconnected. Wrong indoor unit or outdoor unit PCB (main) used.
  • Page 94 16.5.2 Compressor Tank Temperature Sensor Abnormality (H15) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the compressor tank temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 95 16.5.3 Indoor Refrigerant Liquid Temperature Sensor Abnormality (H23) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the indoor refrigerant liquid temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 96 16.5.4 Compressor Low Pressure Protection (H42) Malfunction Decision Conditions: During operation of heating and after 5 minutes compressor ON, when outdoor pipe temperature below -29°C or above 26°C is detected by the outdoor pipe temperature sensor. Malfunction Caused: Dust accumulation on the outdoor unit heat exchanger. Air short circuit at outdoor unit.
  • Page 97 16.5.5 Water Flow Switch Abnormality (H62) Malfunction Decision Conditions: During operation of cooling and heating, the water flow detected by the indoor water flow switch is used to determine water flow error. Malfunction Caused: Faulty water pump. Water leak in system. Faulty connector connection.
  • Page 98 16.5.6 Outdoor High Pressure Abnormality (H64) Malfunction Decision Conditions: During operation of cooling and heating, when the outdoor high pressure sensor output signal is 0 Vdc or 5 Vdc. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 99 16.5.7 Indoor Backup Heater OLP Abnormality (H70) Malfunction Decision Conditions: During operation of indoor backup heater, when no power supplies to indoor backup heater or OLP open circuit. Malfunction Caused: Faulty power supply connector connection. Faulty connector connection. Faulty indoor backup heater overload protector (OLP). Faulty indoor unit PCB (main).
  • Page 100 16.5.8 Tank Temperature Sensor Abnormality (H72) Malfunction Decision Conditions: When tank connection is set to ON, the temperatures detected by the tank temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty indoor unit PCB (main). Abnormality Judgment: Continue for 5 seconds.
  • Page 101 16.5.9 Indoor-Control Panel Communication Abnormality (H76) Malfunction Decision Conditions: During standby and operation of cooling and heating, indoor-control panel error occur. Malfunction Caused: Faulty connector connection. Faulty control panel. Faulty indoor unit PCB (main).
  • Page 102 16.5.10 Indoor/Outdoor Abnormal Communication (H90) Malfunction Decision Conditions: During operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused: Faulty outdoor unit PCB (main). Faulty indoor unit PCB (main). Indoor-outdoor signal transmission error due to wrong wiring.
  • Page 103 16.5.11 Tank Booster Heater OLP Abnormality (H91) Malfunction Decision Conditions: During operation of tank booster heater, and tank booster heater OLP open circuit. Malfunction Caused: Faulty connector connection. Faulty tank booster heater overload protector (OLP). Faulty indoor unit PCB (main). Abnormality Judgment: Continue for 60 seconds.
  • Page 104 16.5.12 Unspecified Voltage between Indoor and Outdoor (H95) Malfunction Decision Conditions: The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused: Insufficient power supply. Faulty outdoor unit PCB (noise filter/main).
  • Page 105 16.5.13 Outdoor High Pressure Protection (H98) Malfunction Decision Conditions: During operation of heating, when pressure 4.0 MPa and above is detected by outdoor high pressure sensor. Malfunction Caused: Faulty water pump. Insufficient water flow rate in system. Water leak in system. 2/3 way closed.
  • Page 106 16.5.14 Indoor Freeze-up Protection (H99) Malfunction Decision Conditions: During anti-freezing control in cooling operation, when the indoor refrigerant liquid temperature < 0°C. Malfunction Caused: Faulty water pump. Insufficient water flow rate in system. Water leak in system. 2 way valve partially closed. Clogged expansion valve or strainer.
  • Page 107 16.5.15 Outdoor High Pressure Switch Activate (F12) Malfunction Decision Conditions: During operation of cooling and heating, when pressure 4.5 MPa and above is detected by outdoor high pressure switch. Malfunction Caused: Dust accumulation on the outdoor unit heat exchanger. Air short circuit at outdoor unit. Faulty water pump.
  • Page 108 16.5.16 Compressor Rotation Failure (F14) Malfunction Decision Conditions: A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused: Compressor terminal disconnect. Faulty outdoor unit PCB (main). Faulty compressor. Abnormality Judgment: Continue 4 times in 20 minutes.
  • Page 109 16.5.17 Outdoor Fan Motor (DC Motor) Mechanism Locked (F15) Malfunction Decision Conditions: The rotation speed detected by the Hall IC of the fan motor during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550 rpm or < 50 rpm). Malfunction Caused: Operation stop due to short circuit inside the fan motor winding.
  • Page 110 16.5.18 Input Over Current Detection (F16) Malfunction Decision Conditions: During operation of cooling and heating, when outdoor current above 15.5 A (Heating) and 7.71 A (Cooling) is detected by the current transformer (CT) in the outdoor unit PCB. Malfunction Caused: Excessive refrigerant.
  • Page 111 16.5.19 Compressor Overheating (F20) Malfunction Decision Conditions: During operation of cooling and heating, when temperature above 112°C is detected by the compressor tank temperature sensor. Malfunction Caused: Faulty compressor tank temperature sensor. 2/3 way valve closed. Refrigerant shortage (refrigerant leakage). Clogged expansion valve or strainer.
  • Page 112 16.5.20 IPM Overheating (F22) Malfunction Decision Conditions: During operation of cooling and heating, when temperature 95°C is detected by the outdoor IPM temperature sensor. Malfunction Caused: Faulty outdoor unit fan motor. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue 3 times in 30 minutes.
  • Page 113 16.5.21 Output Over Current Detection (F23) Malfunction Decision Conditions: During operation of cooling and heating, when outdoor DC current is above 54.0 ± 4.0 A is detected by the IPM DC Peak sensing circuitry in the outdoor unit PCB (main). Malfunction Caused: Faulty outdoor unit PCB (main).
  • Page 114 16.5.22 Refrigeration Cycle Abnormality (F24) Malfunction Decision Conditions: During operation of cooling and heating, compressor frequency > Frated. During operation of cooling and heating, running current: 0.65 A < I < 1.65 A. During operation of cooling, water inlet temperature - indoor refrigerant liquid temperature < 5°C. During operation of heating, indoor refrigerant liquid temperature - water inlet temperature <...
  • Page 115 16.5.23 Four Way Valve Abnormality (F25) Malfunction Decision Conditions: During heating operation, when the indoor pipe temperature of thermostat ON indoor unit < 0°C. During cooling operation, when the indoor pipe temperature of thermostat ON indoor unit > 45°C. Malfunction Caused: Faulty sensor.
  • Page 116 16.5.24 Outdoor High Pressure Switch Abnormal (F27) Malfunction Decision Conditions: During compressor stop, and outdoor high pressure switch is remain opened. Malfunction Caused: Faulty connector connection. Faulty switch. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue for 1 minute.
  • Page 117 16.5.25 Outdoor Air Temperature Sensor Abnormality (F36) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 118 16.5.26 Indoor Water Inlet Temperature Sensor Abnormality (F37) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the indoor water inlet temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 119 16.5.27 Outdoor Discharge Pipe Temperature Sensor Abnormality (F40) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 120 16.5.28 Power Factor Correction (PFC) Abnormality (F41) Malfunction Decision Conditions: During operation of cooling and heating, when the PFC protection circuitry in the outdoor unit PCB (main) senses abnormal high DC voltage level. Malfunction Caused: Power supply surge. Compressor windings not uniform. Faulty outdoor unit PCB (main).
  • Page 121 16.5.29 Outdoor Pipe Temperature Sensor Abnormality (F42) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 122 16.5.30 Outdoor Defrost Temperature Sensor Abnormality (F43) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor defrost temperature sensor are used to determine sensor error. Malfunction Caused: Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB (main).
  • Page 123 16.5.31 Indoor Water Outlet Temperature Sensor Abnormality (F45) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the indoor water outlet temperature sensor are used to determine sensor errors. Malfunction Caused: Faulty connector connection. Faulty sensor.
  • Page 124 16.5.32 Outdoor Current Transformer Open Circuit (F46) Malfunction Decision Conditions: A current transformer (CT) open circuit is detected by checking the compressor running frequency ( rated frequency) and CT detected input current (< 0.65 A) for continuously 20 seconds. Malfunction Caused: CT defective.
  • Page 125 16.5.33 Cooling High Pressure Overload Protection (F95) Malfunction Decision Conditions: During operation of cooling, when pressure 4.0 MPa and above is detected by outdoor high pressure sensor. Malfunction Caused: Dust accumulation in the outdoor unit heat exchanger. Air short circuit at outdoor unit. 2 way valve closed.

  • Page 126: Disassembly And Assembly Instructions

    17. Disassembly and Assembly Instructions WARNING High Voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 17.1 To Remove Front Plate Please follow the steps below for take out front plate.

  • Page 127: To Remove Pressure Gauge

    17.3 To Remove Pressure Gauge Pressure Gauge 1. Remove 3 screws then use spanner to release nut of Pressure Gauge. 17.4 To Remove Control Panel 1. Disconnect the connector Control Panel of CN-REMOTE2 (WHT) from the Electronic Controller Board. Electronic Controller Board 2.

  • Page 128: To Remove Rccb

    17.5 To Remove RCCB 1. Disconnect 4 lead wires (Black, 2. Disconnect 4 lead wires (Black, Grey, Yellow and Blue). Grey, Yellow and Blue). 3. Remove screws to remove RCCB. RCCB 17.6 To Remove Transformer and Electronic Controller Board Transformer 4.

  • Page 129: To Remove Pressure Relief Valve, Flow Switch And Air Purge Valve

    17.7 To Remove Pressure Relief Valve, Flow Switch and Air Purge Valve 1. Remove 2 retaining ring. 3. Pull outward to remove Pressure Relief Valve. Air Purge Valve Pressure Relief Valve 5. Turn the Air Purge Valve anti-clockwise then remove. 2.

  • Page 130: To Remove Water Pump And Bottle Complete

    17.8 To Remove Water Pump and Bottle Complete 2. Loosen the nut. 3. Remove 2 retaining ring then pull out the Water Pump. Water Pump 1. Disconnect CN-PUMP2 from Electronic Controller. When reinstall the water pipe, use grease or water at the joining.
  • Page 131 4. Disconnect the connector of CN-OLP1 and lead wire HT1-L1, HT1-L2 and HT1-L3. 5. Loosen 3 nuts. Bottle Complete 6. Remove 4 screws to remove the Bottle Complete. When reinstall the water pipe, use grease or water at the joining.

  • Page 132: Technical Data

    18. Technical Data 18.1 Operation Characteristics 18.1.1 WH-SXC16F9E8 WH-UX16FE8 Heating Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 7°C (DBT), 6°C (WBT) Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Piping length : 7 m 18.000...
  • Page 133 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7 m 14.500 13.000 11.500 10.000 8.500 7.000 Outdoor Temperature (°C) 5.000 4.300 3.600...
  • Page 134 Cooling Characteristics at Different Outdoor Air Temperature Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 18°C Piping length : 7 m 15.500 14.000 12.500 11.000 9.500 8.000 Outdoor Temperature (°C) 4.500 3.800 3.100...
  • Page 135 Heating Characteristics at Different Piping Length Condition Outdoor air temperature : 7°C (DBT), 6°C (WBT) Indoor water inlet temperature : 30°C Indoor water outlet temperature : 35°C Piping length : 7 m 18.000 17.000 16.000 15.000 14.000 13.000 Piping Length (m) 4.200 4.000 3.800...
  • Page 136 Cooling Characteristics at Different Piping Length Condition Outdoor air temperature : 35°C (DBT), -°C (WBT) Indoor water inlet temperature : 12°C Indoor water outlet temperature : 7°C Piping length : 7 m 13.000 12.400 11.800 11.200 10.600 10.000 Piping Length (m) 5.000 4.900 4.800...

  • Page 137: Heating Capacity Table

    18.2 Heating Capacity Table 18.2.1 WH-SXC16F9E8 WH-UX16FE8 Water Out (°C) Input Input Input Input Input Input Outdoor Air (°C) Capacity Capacity Capacity Capacity Capacity Capacity Power Power Power Power Power Power 16000 6300 16000 6890 16000 7450 16000 8100 16000...

  • Page 138: Exploded View And Replacement Parts List138

    19. Exploded View and Replacement Parts List 19.1 Indoor Unit Note:  The above exploded view is for the purpose of parts disassembly and replacement.  The non-numbered parts are not kept as standard service parts.
  • Page 139 <Model: WH-SXC16F9E8> SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-SXC16F9E8 REMARK BASE PAN CWD521279 HOT WATER COIL - COMPLETE CWB90C1108 RECEIVER CWB141039 FLOW SWITCH CWB621128 FLARE NUT(3/8) CWT251061 FLARE NUT (5/8) CWT251064 WATER PUMP CWB532116 PACKING (O-RING) I.D 32MM CWB811082...

  • Page 140: Outdoor Unit

    19.2 Outdoor Unit Note:  The above exploded view is for the purpose of parts disassembly and replacement.  The non-numbered parts are not kept as standard service parts.
  • Page 141 Note:  The above exploded view is for the purpose of parts disassembly and replacement.  The non-numbered parts are not kept as standard service parts.
  • Page 142 Note:  The above exploded view is for the purpose of parts disassembly and replacement.  The non-numbered parts are not kept as standard service parts.
  • Page 143 <Model: WH-UX16FE8> SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-UX16FE8 REMARK BASE PAN ASS'Y CWD52K1275 COMPRESSOR 5JD650XBA22 ANTI-VIBRATION BUSHING CWH50055 NUT - COMPRESSOR MOUNT CWH561049 GASKET FOR COMPRESSOR CWB811017 CRANKCASE HEATER CWA341053 CONDENSER COMPLETE CWB32C3945 HIGH PRESSURE SENSOR CWA501463 DISCHARGE MUFFLER CWB121014 HEATING PRESSURE SWITCH CWA101013...
  • Page 144 SAFETY REF. NO. DESCRIPTION & NAME QTY. WH-UX16FE8 REMARK 2-WAYS VALVE CWB021637 V-COIL COMPLETE (2 WAY VALVE) CWA43C2607 CAPACITOR (6.0Uf/440V) DS451605DPQB PTC THERMISTORS D4DDG1010001 WASHER FOR P.FAN CWH571067 WASHER FOR P.FAN CWH571068 SOUND PROOF MATERIAL CWG302821 CWG861204 SHOCK ABSORBER CWG712922 BASE BOARD - COMPLETE CWG62C1086 SHOCK ABSORBER (TOP LEFT RIGHT)

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