Table of Contents
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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.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
TABLE OF CONTENTS
1. Safety Precautions.............................................2
2. Specification .......................................................4
3. Features ..............................................................5
4. Location ..............................................................6
5. Dimensions .........................................................7
5.1
WH-TD20B3E3.............................................7
5.2
WH-TD30B3E5.............................................8
6. Water Cycle Diagram .........................................9
7. Installation Instruction.....................................10
7.1
Piping and Wiring Installation.....................10
7.2
Charge the Water .......................................13
7.3
Examine the Anode once a year ................13
7.4
Discharge of Water.....................................13
7.5
Precaution on Usage..................................13
WARNING
PRECAUTION OF LOW TEMPERATURE
8. Operation Control.............................................14
9. Troubleshooting Guide....................................15
10. Disassembly Instructions................................16
11. Technical Data ..................................................17
12. Replacement Parts List ...................................18
8.1
Safety Valve ...............................................14
8.2
Thermostat .................................................14
8.3
3-Way Valve ...............................................14
10.1
Replacing the Heating Element..................16
10.2
Replacing the Thermostat ..........................16
10.3
Replacing the Sacrificial Anode .................16
11.1
Tank Thermistor .........................................17
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010.
Unauthorized copying and distribution is a violation of law.
Order No: PHAAM1004143C2
WH-TD20B3E5
WH-TD30B3E5
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Summary of Contents for Panasonic WH-TD20B3E5
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Page 1: Table Of Contents
Piping and Wiring Installation.....10 Charge the Water ........13 12. Replacement Parts List ........18 Examine the Anode once a year ....13 Discharge of Water........13 Precaution on Usage........13 © Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2010. Unauthorized copying and distribution is a violation of law. -
Page 2: Safety Precautions
1. Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before installation of Domestic Hot Water Tank Unit (hereafter referred to as “Tank Unit”). • Electrical works and water installation works must be done by licensed electrician and licensed water system installer respectively. - Page 3 CAUTION 1. Installation work. Three people are required to carry out the installation work. The weight of Tank Unit might cause injury if carried by one person. 2. Do not install Tank Unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the Tank unit, it may cause fire.
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Page 4: Specification
2. Specification Model WH-TD20B3E5 WH-TD30B3E5 Phase, Hz Single, 50 Power Supply Connection inch Stainless Steel 5/4 (CW602N brass quality) Material Incoloy 825 Electric Element Capacity Btu/h 10243 kJ/h 10800 Material Stainless Steel F18MT / AISI 444 / DIN 1.4521 Pressure vessel... -
Page 5: Features
3. Features • A hot water storage tank with capacity of 300Litres and 200Litres • High Efficiency • High Durable Made of clean stainless steel, the tank is designed to provide long lasting durability and toughness and exceptional resistance to rust. •... -
Page 6: Location
4. Location Main components 1. Hot water outlet (3/4”BSP) 2. Electrical box 3. Sensor pocket (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. -
Page 7: Dimensions
5. Dimensions WH-TD20B3E3 Unit: mm... -
Page 8: Wh-Td30B3E5
WH-TD30B3E5 Unit: mm... -
Page 9: Water Cycle Diagram
6. Water Cycle Diagram • Connection for WH-SDH series or equivalent. • Connection for WH-SDF / SDC series or equivalent. -
Page 10: Installation Instruction
7. Installation Instruction Dimension (mm) Capacity Model (Litre) Height Diameter WH-TD20B3E5 1150 WH-TD30B3E5 1600 Main components 1. Hot water outlet – 19.05 mm (3/4"BSP) 2. Electrical box 3. Sensor socket – 12.70 mm (1/2"BSP) 4. Flow inlet – 19.05 mm (3/4"BSP) 5. - Page 11 WARNING This section is for authorized and licensed electrician / water system installer only. Besure to switch off all power supply (Tank Unit power supply, indoor unit power supply, heater power supply etc.) before performing installlation. Install adjustable legs at bottom of tank (3 locations) then adjust the height until the unit stable. Fix the anode bar into socket.
- Page 12 7.1.1 Wiring at Tank Unit (Electrical box) SDH 07/09/12/14/16 MODELS SDF/SDC 07/09/12/14/16 MODELS Cap tire cable (2.5 mm × 5 cable) Earth BOOSTER HEATER Earth 14 13 Cap tire cable (2.5 mm × 3 wires) BOOSTER TANK HEATER Must not change the volume knob. Must not change the volume knob.
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Page 13: Charge The Water
Charge the Water WARNING Make sure Tank Unit filled up with water before switch on the power. 1) Make sure all the piping installations are properly done. 2) Set the water supply valve “OPEN” and all hot water tap “OPEN”. 3) Start filling water to the Tank Unit. -
Page 14: Operation Control
8. Operation Control Safety Valve • Use commercial T-joint to joint connection (D) of safety valve. Please install between water supply inlet and water supply tube at below of front side of Safety valve main unit. • Please connect discharge drain at connector (R). During boiling, when pressure is above 9bar, Drain connection water discharge (3/4BSP) -
Page 15: Troubleshooting Guide
9. Troubleshooting Guide Type of failure Possible cause Diagnostic and what to do No power supply to the water Check if there is any power on the Heater. power supply terminal on the thermostat. No hot water The fuse or safety cut-off to Press the reset button. -
Page 16: Disassembly Instructions
10. Disassembly Instructions 10.1 Replacing the Heating Element 1. Disconnect the power cable. Fig. A 2. Remove the electric box lid (1). 3. Open Safety Relief valve (2) for a few seconds to relieve some of the pressure. This is done by turning knob counter-clockwise. -
Page 17: Technical Data
11. Technical Data 11.1 Tank Thermistor Minimum Standard Maximum Temperature (°C) -
Page 18: Replacement Parts List
12. Replacement Parts List REF. NO. PART NAME & DESCRIPTION WH-TD20B3E5 WH-TD30B3E5 REMARK ANODE 56200 56250 ELECTRIC BOX LID 74000 ← THERMOSTAT KIT 80060 ← 5/4" HEATING ELEMENT 1 x 240V 71259 ← THERMISTOR POCKET 81020 ← SAFETY RELIEF VALVE SV-2 90405 ←...