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Panasonic WH-TD20B3E5, Service Manual

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Panasonic WH-TD20B3E5 Service Manual Download Page 18

18 

12.  Replacement Parts List 

 

 

 
 
 

REF. NO. 

PART NAME & DESCRIPTION 

QTY

WH-TD20B3E5 

WH-TD30B3E5 

REMARK 

1 ANODE 

1 

56200 

56250 

 

 

2 ELECTRIC 

BOX 

LID 

1 

74000 

←

 

  

3 THERMOSTAT 

KIT 

1 

80060 

←

 

  

4 

5/4" HEATING ELEMENT 1 x 240V 

1 

71259 

←

 

  

5 THERMISTOR 

POCKET 

1 

81020 

←

 

 

6 

SAFETY RELIEF VALVE SV-2 

1 

90405 

←

 

  

7 ADJUSTABLE 

FEET 

3 

60710 

←

 

 

8 THERMISTOR 

SENSOR 

1 

81809 

←

 

 

9 3-WAY 

VALVE 

1 

90250 

←

 

 

10 ACTUATOR 

FOR 

VALVE 

1 

90252 

←

 

 

 
(Note) 

•

  The non numbered parts are not kept as standard service parts. 

•

  All parts are supplied from PHAAE, Germany. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Printed in Malaysia 

SO1105-2 

Summary of Contents for WH-TD20B3E5

Page 1: ...cing the Heating Element 16 10 2 Replacing the Thermostat 16 10 3 Replacing the Sacrificial Anode 16 11 Technical Data 17 11 1 Tank Thermistor 17 12 Replacement Parts List 18 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 te...

Page 2: ...hock 6 Install at a flat horizontal strong and firm location which is able to withstand the Tank Unit s weight If the location is slanting or strength is not enough the set will fall and cause injury 7 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 ...

Page 3: ...t an installation location where it is accessible for maintenance 5 Do not install this appliance in a laundry room or other high humidity location This condition will cause rust and damage to the Tank unit 6 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 7 After install...

Page 4: ...ial Stainless Steel LDX 2101 DIN 1 4162 Lean Duplex Diameter Thickness mm Ø 22 0 8 Heating coil Surface area m 2 0 8 Material ECO Foam PUR Thickness mm 40 Insulation Heat loss Approx 2 1 24hours Insulation Jacket Material Epoxy coated steel 90 gloss white Diameter mm 580 580 Dimension Height mm 1150 1600 Weight Net kg 45 59 Cold water inlet inch 3 4 inside baffle plate Hot water outlet inch 3 4 CW...

Page 5: ...nce and safety o Hot water setting temperature of tank 40 C Max 75 C Set by remote control of indoor unit Safety by 2 thermostats o 1st stage Set 88 C Can be cancelled by remote control o 2nd stage Set 95 C Can be cancelled by thermostat reset button Maximum compatibility o Built in coil in stainless steel which is designed for circulation from solar panel etc Serviceability Feature o Easy drainin...

Page 6: ...t 1 2 BSP 4 Flow inlet 3 4 BSP 5 Return outlet 3 4 BSP 6 Cold water inlet 3 4 BSP 7 Threaded Sensor hole for solar station connection 1 2 BSP 8 Anode connector 3 4 BSP 2 Electrical box detail Reset button Safety cut out Thermostat Electric element 5 4 Temperature adjustment Must not change the volume knob ...

Page 7: ...7 5 Dimensions 5 1 WH TD20B3E3 Unit mm ...

Page 8: ...8 5 2 WH TD30B3E5 Unit mm ...

Page 9: ...9 6 Water Cycle Diagram Connection for WH SDH series or equivalent Connection for WH SDF SDC series or equivalent ...

Page 10: ...4 BSP 7 Threaded Sensor hole for solar station connection 12 70 mm 1 2 BSP 8 Anode connector 19 05 mm 3 4 BSP Accessory parts A 3 way valve B Sensor C Installation manual D Safety valve E Adjustable legs X 3 F Anode bar 7 1 Piping and Wiring Installation 6 5 7 4 3 1 Panasonic Heating B side A B A side 3 way valve Hot water connection Anode bar insert 300mm or more Drain connection water discharge ...

Page 11: ...on is at Heating Side On condition is at Tank Unit 5 Insert sensor until it touches securely end of socket tighten the cap of socket so that it is not shifted Refer bottom diagram 6 Connect the cable between heater and OLP which located inside electrical box as shown at below section Wiring at Tank Unit Electrical Box and Wiring at Indoor Unit Use cap tire cable 2 mm 2 for wiring For SDH series 3 ...

Page 12: ...LS Earth 6 5 Earth 8 7 14 13 7 1 2 Wiring at Indoor Unit SENSOR 3W A YVAL VE BOOSTER HE A TER 1 2 3 4 5 6 Booster Heater Tank OLP 3 way valve Earth Booster heater lead wire 3 way valve lead wire Sensor lead wire Earth Sensor lead wire 3 way valve lead wire Booster heater lead wire For SDH07 09 models 1 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 For SDH12 14 16 models For SDF SDC MDF ...

Page 13: ...ding on the water quality corrode When diameter is approx 8mm the anode must be replaced It is easy to check and replace the anode 1 Turn off power supply 2 Close water supply valve 3 Manually open the safety valve and drain approx 2ltrs 4 Unscrew the anode check and if necessary replace 7 4 Discharge of Water 1 Turn off power supply 2 Close water supply valve 3 Open safety valve by turning knob c...

Page 14: ... supply Safety valve R D K 8 2 Thermostat 1st stage Set 88 C Can be cancelled by remote control Must not change the volume knob 2nd stage Set 95 C Can be cancelled by thermostat reset button Reset button located on upper part of the thermostat this button will release and cut all power to the heating element if the internal temperature in the water heater rises above 98 C If this occurs the functi...

Page 15: ...at up using a std screwdriver Water not warm enough Heating element or the internal electrical wiring partially out of order Check the resistance of the heating element on the connector of the heater bundle and the condition of the internal wiring Safety valve SV is dripping Water expands when heated If there is no consumption of hot water over a period of time pressure builds up causing the safet...

Page 16: ...1 covering the electric box 3 Loosen screws see fig B and disconnect the electric wires 4 Remove thermostat 4 by pulling back slightly on steel clip S using two fingers then lifting the thermostat slightly horizontally out of the clip before removing it from the electrical box 5 Replace thermostat by again pulling back on steel clip S before slotting the new thermostat into place 6 Reconnect the w...

Page 17: ...17 11 Technical Data 11 1 Tank Thermistor 0 1 2 3 4 5 6 7 8 9 10 0 10 30 50 70 90 110 Temperature C Resistance kΩ Minimum Standard Maximum ...

Page 18: ...KIT 1 80060 4 5 4 HEATING ELEMENT 1 x 240V 1 71259 5 THERMISTOR POCKET 1 81020 6 SAFETY RELIEF VALVE SV 2 1 90405 7 ADJUSTABLE FEET 3 60710 8 THERMISTOR SENSOR 1 81809 9 3 WAY VALVE 1 90250 10 ACTUATOR FOR VALVE 1 90252 Note The non numbered parts are not kept as standard service parts All parts are supplied from PHAAE Germany Printed in Malaysia SO1105 2 ...

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