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Sharp WH-237DP, Руководство по обслуживанию

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SHARP SERVICE MANUAL

ELECTRIC WATER HEATER

MODELS

WH-237DP
WH-247D

SHARP CORPORATION

TABLE OF CONTENTS

PARTS IDENTIFICATION AND SPECIFIC INFORMATION  ..............................................

EXTERNAL DIMENSION ...................................................................................................

CAUTION FOR USE ..........................................................................................................

HOW TO USE ....................................................................................................................

WIRING DIAGRAM ............................................................................................................

INSTALLATION ADVICE ....................................................................................................

ELECTRIC WIRE CONNECTIONS ....................................................................................

SHOWER SET ....................................................................................................................

REPLACING METHOD FOR MAIN PARTS .......................................................................

TROUBLESHOOTING .......................................................................................................

CIRCUIT DIAGRAM (PCB-A) .............................................................................................

SERVICE PARTS LIST .......................................................................................................

Page

2

3

3

4

5

5-8

8-10

10

11-16

17

18

19-21

In the interests of user-safety (Required by safety 

regulations in some countries) the set should be restore 

to its original condition and only parts identical to those 

specifi ed should be used.

Содержание WH-237DP

Страница 1: ...WIRING DIAGRAM INSTALLATION ADVICE ELECTRIC WIRE CONNECTIONS SHOWER SET REPLACING METHOD FOR MAIN PARTS TROUBLESHOOTING CIRCUIT DIAGRAM PCB A SERVICE PARTS LIST Page 2 3 3 4 5 5 8 8 10 10 11 16 17 18 19 21 In the interests of user safety Required by safety regulations in some countries the set should be restore to its original condition and only parts identical to those specified should be used ...

Страница 2: ... 25 o C and flow rate is 2 3 liters min 220 50 2 4 3 500 Single point Electronic control automatic constant temperature approximately 32 o C 48 o C 0 02 MPa 0 21 Bar 0 34 MPa 3 39 Bar 236 x 378 x 86 IP25 4 500 Main breaker ELB lamp Power lamp Temperature control button Power SW button Display 1 MPa Megapascal 10 2 Kilograms Square centimeter Power cord and ground wire Control lamp Shower head Show...

Страница 3: ...ill flow slowly therefore the temperature will rise temporary before revert back This is not a heater malfunction Please turn the water volume knob or press the temperature volume button appropriately 7 In the event of thunder and lightning storm turn off the main breaker to prevent the damage that may occur on this appliance 8 Close supervision is necessary in order to check on the water temperat...

Страница 4: ...ult temperature if it is off for more than 2 5 minutes 4 HOW TO USE BEFORE USE The installation work is to be done by the Authorized SHARP Dealer The electric home shower unit must earthed Special skill is required Never try to repair the unit by yourself 1 Open the main water valve from the home main water pipe 2 Open the main breaker switch 3 Push up ELB breaker to activate the heater electrical...

Страница 5: ... incoming water flows too much and the warm water temperature is out of control then the control lamp will flash 1 8 Bath a cold water by pressing the temperature button until the temperature is lower then 32 o C The indicator will display OF and flashes 3 times Press the temperature button again when OF is flashing and OF off will stop flashing and the orange lamp will also be off 5 WIRING DIAGRA...

Страница 6: ...3 39 Bar Please follow the picture below to check water pressure Water shall overflow at the end of the tube within 2 3 meters above the faucet 2 INSTALLATION THE UNIT 2 1 Preparing installation area The unit must be mounted to the wall in a vertical position only See in the picture Leave this unit away from the wall for both sides more than 200 millimeters About 2 3 meters Fig 5 Fig 6 The minimum...

Страница 7: ...th approximately 25 millimeters in depth Install wall anchors into the holes Screw the top wall anchors leave screw length around 8 10 millimeters and hang the unit on the screw then marked the position in order to drill another 2 holes at the bottom drill the holes and install the rest of wall anchors then fasten all of 4 screws Fig 12 Notification in connecting the shower hose Shower head PCB co...

Страница 8: ... between the unit and the water volume knob and twist the shower hose by hands until it tight Do not use any tools during assembly because it may cause the damage to plastic components 2 Tighten the connection into the thread located at the bottom of the water volume knob Force gauge do not exceed 40 kgf cm 3 Connect water inlet pipe and water outlet pipe as shown in the picture Fig 14 Water inlet...

Страница 9: ...connection to the unit can be done by 2 methods as illustrated Drill a small hole at the rubber to insert the wire on side or at the rear of the unit Peel the wire and connect to the ELB checker by connecting the high voltage cable to the terminal L and connect neutrons wire into the terminal N Use screwdriver to tighten the wires Force gauge approximately 12 kgf cm If the wires are connected into...

Страница 10: ...g process 4 Ground resistance must be less than 5 ohm 5 After grounding process is completed if ground resistance is higher than 5 ohm additional ground rod must be embedded Leave the additional one away from the previous ground rod at least equal to the length of ground rod Connect them together in parallel SHOWER SET Shower heads allow users to adjust into 3 types by simply twisting the shower h...

Страница 11: ...ting wire for PCB from the PCB control 4 Now the body is free REMOVE OF BODY Fig 21 Body Screw Back cover REPLACING METHOD FOR MAIN PARTS 1 Turn out the joint body between the body with the shower hose manually Never use other tools to avoid breaking plastic parts REMOVE OF SHOWER HOSE Fig 20 Body Shower hose ...

Страница 12: ...push SW set to the back cover 3 Now the push SW set is free REMOVE OF PUSH SWITCH SET Body Remove the guide pin Flat screwdriver 1 Remove the body in accordance with REMOVE OF BODY 2 Push the claws of the guide pin by flat screwdriver and remove the guide pin from the body 3 Now the power SW button is free REMOVE OF POWER SWITCH BUTTON Power SW button ...

Страница 13: ...screws of the reed switch at the specified torque 3 4 kgf cm REMOVE OF REED SWITCH Fig 25 Reed SW Screw Body valve Reed SW lead wire Fig 24 REMOVE OF TRIAC 1 Remove the body in accordance with REMOVE OF BODY 2 Disconnect 3 lead wires from the triac 3 Remove 2 screws holding to the heater tank ass y 4 Now the triac is free Triac Heater tank Screw White lead wire Breaker lead wire Triac lead wire Br...

Страница 14: ...27 Back cover Thermostat lead wire yellow Screw Screw L wire earth Lead wire brown Lead wire yellow Thermistor ass y Breaker lead wire black Triac lead wire brown Screw Screw Cable tie Heater tank support Heater tank Thermostat REMOVE OF BODY VALVE ASS Y AND WATER OUTLET 1 Remove the body in accordance with REMOVE OF BODY 2 Remove the reed SW in accordance with REMOVE OF REED SWITCH 3 Remove the p...

Страница 15: ...al key top 4 Now the display board is free REMOVE OF DISPLAY BOARD Fig 29 1 Remove the body in accordance with REMOVE OF BODY 2 Pull out all lead wires from the PCB control 3 Remove 3 screws holding the PCB control 4 Now the PCB control is free REMOVE OF PCB CONTROL Fig 28 Screw Back cover Digital key top Body Connecting wire for PCB Screw Display board PCB control ...

Страница 16: ...0 times Then the power lamp is not lights up ELB lamp is lights up Possible cause The water is not supply or the water pressure is too low Display shows and sounds short beep 2 times long beep 1 time and so on until 8 times Then the power lamp is not lights up ELB lamp is lights up Possible cause The water pressure is too low and the temperature is too high in the heater tank So that the thermosta...

Страница 17: ...hermostat trip Cut off Reed SW is defected Body valve ass y is defected PCB control is defected Triac ass y is defected PCB control is defected PCB control is defected PCB control is defected O ring is clogged Shower ass y is clogged Main water valve is open too low Main water valve is closed Water volume is closed Power switch button is defected Water is not hot ELB lamp is lights up Power lamp i...

Страница 18: ...18 CIRCUIT DIAGRAM PCB A ...

Страница 19: ...13 7D601 AC LINE CLAMP 1 2 14 7N608 RUBBER CAP 1 2 15 71M216SET PUSH SWITCH SET 1 2 16 71M410ASY BODY VALVE ASS Y 1 2 17 71J305 HEATER TANK SUPPORT 1 2 18 71M301SET HEATER TANK SET 1 2 19 71J306 CABLE TIES 1 2 20 71C204ASY SHOWER ASS Y 1 2 21 7A9012ASY SHOWER HOSE ASS Y 1 2 22 7A910 SHOWER STAND 1 2 23 7G801ASY WATER INLET BODY ASS Y 1 2 24 7A912 O RING FIXER 1 ELECTRIC PARTS 3 1 7A605 BREAKER 220...

Страница 20: ...AC LINE CLAMP 1 2 14 7N608 RUBBER CAP 1 2 15 71M216SET PUSH SWITCH SET 1 2 16 71M410ASY BODY VALVE ASS Y 1 2 17 71J305 HEATER TANK SUPPORT 1 2 18 71N301SET HEATER TANK SET 1 2 19 71J306 CABLE TIES 1 2 20 71A204ASY SHOWER ASS Y 1 2 21 7A901ASY SHOWER HOSE ASS Y 1 2 22 7A910 SHOWER STAND 1 2 23 7G801ASY WATER INLET BODY ASS Y 1 2 24 7A912 O RING FIXER 1 ELECTRIC PARTS 3 1 7A605 BREAKER 220V 30A 1 3 ...

Страница 21: ...21 ...

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