Manuals / Toshiba / Household Appliance / Heat Pump

Toshiba HWS-2101CSHM3-E(-UK), HWS-802XWHT6-E, HWS-802H-E, HWS-802XWHM3-E, HWS-3001CSHM3-E(-UK)

Models: HWS-1402XWHT9-E HWS-1402XWHM3-E HWS-1402XWHT6-E HWS-1501CSHM3-E(-UK) HWS-1402H-E HWS-2101CSHM3-E(-UK) HWS-3001CSHM3-E(-UK) HWS-802XWHM3-E HWS-802H-E HWS-802XWHT6-E

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[A12] Error Heating or Hot water supply heater failure

Restart

Operation starts under 10 TWI 20°C

Freeze prevention control is detected once

Heater backup operation Heating: Booster heater

Hot water supply: Hot water cylinder heater

After 1 hour since heater operation started, neither TWI 15°C

nor TTW 20°C is met

	Water heat	No
	exchanger board DPSW11-1,2	No
	exchanger board DPSW11-1,2
	is ON
	Yes
	Backup heater or	No
	hot water cylinder terminal	No
	hot water cylinder terminal
	has 230ACV ( ± 23V)

A12 abnormality detection

Set water heat board DPSW11-1,2 to ON

	Yes	Power is connect		No	Place electric wire for
	Yes	Power is connect			backup heater
		to backup heater or hot water			backup heater
		to backup heater or hot water			Place electric wire for
		cylinder terminal			Place electric wire for
		cylinder terminal			hot water cylinder
					hot water cylinder
			Yes
			Yes		Set breaker for backup
					heater to ON
					Set breaker for hot water
					Set breaker for hot water
					cylinder to ON
					or check indoor wiring

Backup heater element	No
Backup heater element
is conductive	(Backup heater NG)
Yes
Hot water	No
Hot water
cylinder heater element
cylinder heater element	(Hot water cylinder heater NG)
is conductive	(Hot water cylinder heater NG)
Yes
TWI, TTW sensor
TWI, TTW sensor	No
characteristics are
characteristics are	(See characteristic table in page 101)
normal	(See characteristic table in page 101)
normal
Yes

Replace water heat
exchange control board

Replace booster heater unit and safety valve

Replace hot water cylinder heater

(Refer to hot water cylinder guide)

Replace TWI or TTW sensor

83

Image 84

Toshiba HWS-2101CSHM3-E(-UK), HWS-802XWHT6-E, HWS-802H-E, HWS-802XWHM3-E, HWS-3001CSHM3-E(-UK), HWS-1402H-E, HWS-1402XWHT6-E

Contents

AIR TO WATER HEAT PUMP Hydro UnitOutdoor Unit Hot Water CylinderContents 9 Method of Defect Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SAFETY PRECAUTIONS About symbolsDANGER DANGER•Do not disassemble or modify the parts also • Failure to do so may cause an electric shock 2-1.Safety During Installation and Service 2 NEW REFRIGERANT R410A2-2.Installing refrigerant pipe 2-2-1.Steel pipe and jointCopper pipe Table 2-1Wall thickness of copper pipeFlare and precautions Flare dimension2-2-2.Processing of piping materials FigureFlare connecting procedure and precautions Nominal diameterOuter diameter mm Tightening torque N•m kgf•m2-3.Tools 2-3-1.Necessary toolsGeneral tools Conventional tools are available 2-4.Recharging of refrigerant Fig. 2-4-1Configuration of refrigerant chargingCylinder with siphon 2-5.Brazing of pipes Low temperature brazing metalWhy flux is necessary Characteristics of fluxFig Prevention of oxidation during brazing Specifications Unit name 4 Outside Drawing 4-1.Hydro unitHWS-802XWHM3-E, 802XWHT6-E HWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-EOutdoor unit HWS-802H-EHWS-1102H-E, 1402H-E 4-3.Hot water cylinder HWS-3001CSHM3-E-UKHWS-2101CSHM3-E-UKHWS-1501CSHM3-E-UK Wiring Diagram Hydro UnitHWS-1402XWHT9-E HWS-802XWHT6-E5-2.Outdoor Unit Control board5-3.Hot Water Cylinder Unit Key Electric Component Rating 6-1.Hydro UnitHWS-802XWHM3-E, 802XWHT6-E HWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-E Model nameComponent name Type name6-2.Outdoor Unit HWS-802H-EHWS-1102H-E, 1402H-E 6-3.Hot Water Cylinder Unit 6-4.Water Heat Exchange Control Board 6-5.Outdoor Control Board HWS-802H-EHWS-1102H-E, 1402H-E Diagram System DiagramSystem 7-1.WaterInstallation example of water circuit 7-2.Refrigeration Cycle System Diagram HWS-802XWHM3-E, 802XWHT6-E/802H-ERefrigerant R410A ... 1.8 kg8 Operational Description ItemItem Item Item Item Operation flow and applicable data, etcTTW sensor Hot water cylinder unit2 Heating operation 3 Cooling operation Operation Switches to Hot water ItemOperation flow and applicable data, etc HOT WATER button set to ON8 Anti bacteria ANTI BACTERIA operation 9 Night set back NIGHT SET BACK operation 11 AUTO operation 12 Nighttime low-noiseoperation Hz signal correction ItemOperation flow and applicable data, etc Hydro unit1-2High temperature release control 2 Heater control 2 Control at the time of heating heater operation 3 Circulation pump control Operation flow and applicable data, etc Flow rateL/minFlow rateL/min Item Operation flow and applicable data, etc8-1Pipingfreeze prevention control 8-2Piping freeze prevention control 3. Hydro Unit Item Operation flow and applicable data, etcTD C 111 109 106 103 96Settings ItemOperation flow and applicable data, etc Current degradationItem Operation flow and applicable data, etcTL C WE tapItem Operation flow and applicable data, etcTE C 2tap/20 secs to W1 24 Stop time count 2tap/20 secs to W1 21 1tap/20 secs to W1Compressor Outdoor fan4-wayvalve Outdoor PMV 0pulsewhen TO sensor fails UsualItem Operation flow and applicable data, etcHeating TC Cooling TL C a b c d e9 Method of Defect Diagnosis 9-1.Matters to be confirmed first 9-3.Outline of the determination diagram 9-3-4.How to diagnose by error code Defect mode detected by the water heat exchangePage Page Defect mode detected by the outdoor unit Page Page Defect mode detected by the remote control 9-4.Diagnosis flow chart for each error code A01 Error Pump flow determination9-4-1.Hydro unit failure detection Page Page A04 Error Freeze prevention control A05 Error Piping freeze prevention control Page Page Page A11 Error Release protection operation Page E04 Error F03 Error TC sensor failure F04 Error TD sensor failureF06 Error TE sensor failure F07 Error TL sensor failure F08 Error TO sensor failureF10 Error TWI sensor failure F11 Error TWO sensor failure F14 Error TTW sensor failureF17 Error TFI sensor failure F18 Error THO sensor failure F19 Error THO sensor detach failureF20 Error TFI detach failure F23 Error Lo pressure sensor detach failureF29 Error EEPROM failure F30 Error Enhanced IC failureL07 Error L09 ErrorDiagnosis procedure for each check code 9-4-2.Outdoor Unit Failure DetectionCheck code Any of the following abnormality may occur Check code Check code Check code Check code Check code Check code Check code TC, TWI, TWO, TFI, TTW, TE, TS, TO sensors TD, TL sensors9-5.Operation check by PC board switch 9-5-1.Operation check modeOperation check mode 9-6.Brief method for checking the key components 9-6-1.Hydro unit9-6-2.Outdoor unit 10Hydro unit and Outdoor Unit Settings Hydro unit 1. Hydro unit Setting2. Hydro unit Function Code Setting Function code table ItemDetails First shipmentRemote controller function code table ItemDetails Fist shipment1, 4 2, 1, 43. Trial Operation 4. Auto Curve Setting 5. Time Setting 1 46. Scheduled Operation Setting 3,6,77. Frost Protection Setting 2,3 1,38. NIGHT Operation Setting 3 2,49. Anti Bacteria Setting 2 3 43 2,4 51 10. Hot Water Boost Setting 11. Nighttime Low-noiseSetting12. Forced Defrosting Setting 13. Rated Operation SettingSensor temperature display calling button for temperature settingPress the TEST and CL15. Failure History Calling Function 3 Pressing the TESTbutton returns to the normal displayOutdoor unit 16 Outdoor Unit Setting Note: All the LEDs have no color when off 1 OverviewFor operation For display2 LED indication switching SW800, SW803 operation 2 -1.Indication switching listSwitch Function and details2 -2.Abnormality indication Current value for the outdoor unit only is shown <Special operation> CN701 Between 1 to 4 Voltage = Approx. 11How to Exchange Main Parts 1. Hydro UnitWork procedure Work procedure Electric parts assemblyRemarks Relay boardExchange parts name Work procedure Exchange parts nameRemarks Work procedure RemarksPump fixingWork procedure Flow switchFlow switch Exchange parts nameExchange parts name Exchange parts name Work procedure 2.Outdoor Unit 2-1. HWS-802H-EExchange parts RemarksExchange parts name Work procedure Compressor lead, Relay connectorExchange parts RemarksExchange parts name name name Work procedure Exchange partsRemarks SW804name 2-2. HWS-1102H-E, 1402H-E Exchange parts name Exchange parts name name name Work procedure Exchange partsRemarks Recess Pulse motor valve body12Periodic Inspection Items <Inspection items>13Part Exploded View, Part List Hydro UnitPage Number of pieces per unit Outdoor Unit HWS802H-ESafety Inverter Assembly HWS-802H-E Reactor Control board assembly Bushing CollarSensor assembly 701 F6 TS, TE, TD sensor 707 FuseSafety Outdoor Unit HWS-1102H-E, 1402H-E Safety Inverter Assembly HWS-1102H-E, 1402H-E Reactor Control board assembly Bushing Collar707 Fuse Terminal 3PSafety