Manuals / Toshiba / Household Appliance / Heat Pump

Toshiba HWS-3001CSHM3-E(-UK), HWS-802H-E System Diagram, Refrigeration Cycle / Water

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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Page 33

7-1. Water

		Air vent valve	Pressure relief valve
	Expansion vessel	Air vent valve	set : 3bar
	Expansion vessel		set : 3bar
	set : 1bar

Booster heater (local)

Boiler (local)

zone1

Fan coil unit

7-1. Water

7

32

Pressure switch 4.15MPa

Low pressure sensor

TC

Thermal protector Single operation set : 95 ± 5°C

TWO

Backup heater

Ø1 : 3kW

Ø3 : 6kW

Ø3 : 9kW

Water heat exchanger

max : 10bar

Pressure relief

Set value : 7bar(UK)

THO

Thermal protector

(auto)

set : 75 ± 3°CAC pump max : 10bar

Menometer gage : - 6bar

Water vent valve

Flow sw

TWI

Water outlet

Safety valve set : 3.5bar

	M	Motorized 3-way valve
	M	(locally procured)
		(locally procured)
		AC230V

Strainer

(locally procured)

40 mesh

Drain cock for water charge

(locally procured)

Relief valve(UK)

90°C

10 bar

By-pass valve

(locally procured)

2-way valve for
cooling mode
(locally procured)	Radiator unit
AC230V
	By-pass valve
	(locally procured)

zone2

Moterized mixing valve

System Diagram

Refrigeration Cycle / Water

Outdoor unit

8,11,14kw

Thermal cut-out (manual reset) 82°C (+3k/-2k)

Reducing valve(UK)

3.5bar

Water inlet

TTW

Cylinder heater

Ø1 : 2.75kW

AC pump

(locally procured)

TFI

Floor heating

(locally procured)

AC230V

M

System

Local hot water system

Hot water cylinder

Buffer tank(locally procured)

Diagram

Image 33

Toshiba HWS-3001CSHM3-E(-UK), HWS-802XWHT6-E, HWS-802H-E System Diagram, Refrigeration Cycle / Water

Contents

Hydro Unit AIR TO WATER HEAT PUMPOutdoor Unit Hot Water CylinderContents 9 Method of Defect Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . About symbols 1 SAFETY PRECAUTIONSDANGER DANGER•Do not disassemble or modify the parts also • Failure to do so may cause an electric shock 2 NEW REFRIGERANT R410A 2-1.Safety During Installation and Service2-2-1.Steel pipe and joint 2-2.Installing refrigerant pipeCopper pipe Table 2-1Wall thickness of copper pipeFlare dimension Flare and precautions2-2-2.Processing of piping materials FigureNominal diameter Flare connecting procedure and precautionsOuter diameter mm Tightening torque N•m kgf•m2-3.Tools 2-3-1.Necessary toolsGeneral tools Conventional tools are available Fig. 2-4-1Configuration of refrigerant charging 2-4.Recharging of refrigerantCylinder with siphon Low temperature brazing metal 2-5.Brazing of pipesWhy flux is necessary Characteristics of fluxFig Prevention of oxidation during brazing Specifications Unit name 4-1.Hydro unit 4 Outside DrawingHWS-802XWHM3-E, 802XWHT6-E HWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-EHWS-802H-E Outdoor unitHWS-1102H-E, 1402H-E 4-3.Hot water cylinder HWS-3001CSHM3-E-UKHWS-2101CSHM3-E-UKHWS-1501CSHM3-E-UK Hydro Unit Wiring DiagramHWS-1402XWHT9-E HWS-802XWHT6-EControl board 5-2.Outdoor Unit5-3.Hot Water Cylinder Unit Key Electric Component Rating 6-1.Hydro UnitHWS-802XWHM3-E, 802XWHT6-E Model name HWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-EComponent name Type nameHWS-802H-E 6-2.Outdoor UnitHWS-1102H-E, 1402H-E 6-3.Hot Water Cylinder Unit 6-4.Water Heat Exchange Control Board HWS-802H-E 6-5.Outdoor Control BoardHWS-1102H-E, 1402H-E System Diagram DiagramSystem 7-1.WaterInstallation example of water circuit HWS-802XWHM3-E, 802XWHT6-E/802H-E 7-2.Refrigeration Cycle System DiagramRefrigerant R410A ... 1.8 kgItem 8 Operational DescriptionItem Item Item Operation flow and applicable data, etc ItemTTW sensor Hot water cylinder unit2 Heating operation 3 Cooling operation Operation Item Switches to Hot waterOperation 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 Item Hz signal correctionOperation 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 Operation flow and applicable data, etc ItemTD C 111 109 106 103 96Item SettingsOperation flow and applicable data, etc Current degradationOperation flow and applicable data, etc ItemTL C WE tapOperation flow and applicable data, etc ItemTE C 2tap/20 secs to W1 24 Stop time count 2tap/20 secs to W1 21 1tap/20 secs to W1Outdoor fan Compressor4-wayvalve Outdoor PMV 0pulseUsual when TO sensor failsOperation flow and applicable data, etc ItemHeating 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 Defect mode detected by the water heat exchange 9-3-4.How to diagnose by error codePage 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 F19 Error THO sensor detach failure F18 Error THO sensor failureF23 Error Lo pressure sensor detach failure F20 Error TFI detach failureF30 Error Enhanced IC failure F29 Error EEPROM failureL07 Error L09 Error9-4-2.Outdoor Unit Failure Detection Diagnosis procedure for each check codeCheck code Any of the following abnormality may occur Check code Check code Check code Check code Check code Check code Check code TD, TL sensors TC, TWI, TWO, TFI, TTW, TE, TS, TO sensors9-5.Operation check by PC board switch 9-5-1.Operation check modeOperation check mode 9-6-1.Hydro unit 9-6.Brief method for checking the key components9-6-2.Outdoor unit Hydro unit 1. Hydro unit Setting 10Hydro unit and Outdoor Unit Settings2. Hydro unit Function Code Setting Item Function code tableDetails First shipmentItem Remote controller function code tableDetails Fist shipment1, 4 2, 1, 43. Trial Operation 4. Auto Curve Setting 1 4 5. Time Setting3,6,7 6. Scheduled Operation Setting2,3 1,3 7. Frost Protection Setting3 2,4 8. NIGHT Operation Setting9. Anti Bacteria Setting 2 3 43 2,4 51 11. Nighttime Low-noiseSetting 10. Hot Water Boost Setting13. Rated Operation Setting 12. Forced Defrosting Settingbutton for temperature setting Sensor temperature display callingPress the TEST and CL3 Pressing the TEST 15. Failure History Calling Functionbutton returns to the normal displayOutdoor unit 16 Outdoor Unit Setting 1 Overview Note: All the LEDs have no color when offFor operation For display2 -1.Indication switching list 2 LED indication switching SW800, SW803 operationSwitch Function and details2 -2.Abnormality indication Current value for the outdoor unit only is shown <Special operation> CN701 Between 1 to 4 Voltage = Approx. 1. Hydro Unit 11How to Exchange Main PartsWork procedure Electric parts assembly Work procedureRemarks Relay boardExchange parts name Work procedure Exchange parts nameRemarks Remarks Work procedurePump fixingFlow switch Work procedureFlow switch Exchange parts nameExchange parts name Exchange parts name 2.Outdoor Unit 2-1. HWS-802H-E Work procedureExchange parts RemarksExchange parts name Compressor lead, Relay connector Work procedureExchange parts RemarksExchange parts name name name Exchange parts Work procedureRemarks SW804name 2-2. HWS-1102H-E, 1402H-E Exchange parts name Exchange parts name name name Exchange parts Work procedureRemarks Recess Pulse motor valve body<Inspection items> 12Periodic Inspection ItemsHydro Unit 13Part Exploded View, Part ListPage Number of pieces per unit HWS802H-E Outdoor UnitSafety Reactor Control board assembly Bushing Collar Inverter Assembly HWS-802H-ESensor assembly 701 F6 TS, TE, TD sensor 707 FuseSafety Outdoor Unit HWS-1102H-E, 1402H-E Safety Reactor Control board assembly Bushing Collar Inverter Assembly HWS-1102H-E, 1402H-E707 Fuse Terminal 3PSafety