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Toshiba HWS-802H-E, HWS-802XWHT6-E service manual Hydro Unit Outdoor Unit, Hot Water Cylinder

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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A09-002

AIR TO WATER HEAT PUMP

SERVICE MANUAL

Model name:

Hydro Unit

Outdoor Unit

HWS-802XWHM3-E HWS-802H-E

HWS-802XWHT6-E HWS-1102H-E

HWS-1402XWHM3-E HWS-1402H-E

HWS-1402XWHT6-E

HWS-1402XWHT9-E

Hot Water Cylinder

HWS-1501CSHM3-E(-UK)

HWS-2101CSHM3-E(-UK)

HWS-3001CSHM3-E(-UK)

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Toshiba HWS-802H-E, HWS-802XWHT6-E, HWS-802XWHM3-E, HWS-1402H-E service manual Hydro Unit Outdoor Unit, Hot Water Cylinder

Contents

Hot Water Cylinder Hydro Unit Outdoor UnitHWS-802XWHT6-E HWS-1102H-E HWS-1402XWHM3-E HWS-1402H-E HWS-1501CSHM3-E-UK HWS-2101CSHM3-E-UK HWS-3001CSHM3-E-UK Contents Method of Defect Diagnosis ∗ For details, see the schematic About symbols∗ Ground wire of class D grounding About indication Do not make additional charge of the refrigerant No modification Do not modify the unit∗ For details, see the parts price list ∗ Thick gloves such as cotton work gloves Failure to do so may cause an electric shock NEW Refrigerant R410A Safety During Installation and Service Steel pipe and joint Installing refrigerant pipeCopper pipe Wall thickness of copper pipe Flare dimension Flare and precautions3 Flare processing related dimension for R410A 4 Dimension of flare for R410A and flare nut 5 Tightening torque of flare for R410A Reference values Flare connecting procedure and precautions Necessary tools ToolsGeneral tools Conventional tools are available Gauge manifold For refrigerant charging, see the figure below Recharging of refrigerant Gauge manifold Outdoor unit Refrigerant cylinder Cylinder without siphon Materials of brazing Brazing of pipesFlux Brazing Robber plug Prevention of oxidation during brazing Specifications Page Hydro unit Outside Drawing HWS-802H-E HWS-1102H-E, 1402H-E HWS-1501CSHM3-E-UK HWS-3001CSHM3-E-UKHWS-2101CSHM3-E-UK Block of the outdoor unit Wiring Diagram Control board Hot Water Cylinder Unit HWS-802XWHM3-E, 802XWHT6-E Key Electric Component RatingModel name Component name Type name Rating M3-E T6-E Model name Component name Type name Rating M3-E T6-E T9-E CAM-MD12TF-15 Component name Type name RatingUS-622KXTMQO-SS OFF = 125 ± 4 C, on = 90 ± 5 C Type name Rating Model name Component nameThermal cut-out CSH Water Heat Exchange Control Board Outdoor Control Board P01Red P02White Earth lead wire P09 BlackD503 Green, Outdoor = Hydro F03 250 V, 10 a F700250V,3.15A System Diagram DiagramSystem Water Installation example of water circuit HWS-802XWHM3-E, 802XWHT6-E/802H-E Refrigeration Cycle System DiagramHWS-1402XWHM3-E, 1402XWHT6-E, 1402XWHT9-E/1102H-E, 1402H-E Outdoor unit Hydro unit Operational Description Heating Temperature setting Operation Remote control settingsHot water supply Temperature setting Cooling Temperature setting Heating temperature 20C to 55C Hot water temperature 40C to 75CBackup heater control Hydro unit Transmit Cooling temperature 10C to 25COutdoor unit TTW sensor Operation flow and applicable data, etcHot water cylinder unit TWI Starts a cooling operation Pressing the ZONE1, 2 button and then Operation ModePump priority Zone Operation with heating priority Simultaneous operations of hot water supply and cooling HOT Water button set to on HOT Water Boost button set to on Switches to Hot water Supply operationHeating side 75C Hot water operation Anti bacteria Anti Bacteria operation HOT Water button set to onAnother 30 minutes can be set with FC0B Supply heater Night set back Night SET Back operation Operation 35B 30C 25D 20E Nighttime low-noise operation Operation Controller set temperature Hz signal correctionTemperature settings Water outlet temperature Inverter output change TC=TWO TC TWO Keep THO TSCF-2 TSCF-0Keep TSCF-4 Non-interlocked with the built-in pump Circulation pump control Hydro Unit SW3 SW2 Flow rateL/minSW1 SW3 Automatic restart control 1Piping freeze prevention controlHeating operation Night Set Back TWO Piping freeze prevention controlTWI, TWO, THO TCB-PCMO3E Hydro Unit Room temperature thermostat control Option PMV Pulse motor valve control Current degradation Settings YesCurrent release control Main circuit control current Number of rotation hold TL C WE tap + 1 tap/20 secs For 802H-E Hot water supply and heating fan controlFor 1102H-E For 1402H-E Inside brackets For 802H-E Heating operation startsOFF Intermittently energized Not energizedOutput equal to 40W Continuously energized 802H-E 1102H-E, 1402H-E Heating Cooling TC TWO+2 61C Method of Defect Diagnosis Procedure of defect diagnosis Remark About the installation of the temperature sensor Check the power supply voltageMatters to be confirmed first 1 Non-defective operation Procedure of defect diagnosis Outline of the determination diagramHow to determine from the check code on the remote control How to cancel a check code on the remote controller Defect mode detected by the water heat exchange How to diagnose by error code2TWO 3TWI Diagnostic functional operation Number Diagnostic functional operation Number Defect mode detected by the outdoor unit Diagnostic functional operation Number Diagnostic functional operation Number Diagnostic functional operation Defect mode detected by the remote controlDetermination and action A01 Error Pump flow determination Diagnosis flow chart for each error codeHydro unit failure detection Replace flow switch A02 Error Temperature rise and error short circuitReplace TWI, TWO, and THO sensors Yes Water outlet Start A03 Error Temperature rise and error short circuitYes TTW 85C is detected Replace TTW sensor A04 Error Freeze prevention control A05 Error Piping freeze prevention control Remove waste Yes Lower set temperatureWater circuit Place buffer tank Where frost remains Yes Raise set temperatureCooling overload operation Yes Defrost outdoor unit Put water into water circuit Recommended 1 2 Bar Water cycle contains water Secure water Waste stuck inside Remove waste A11 Error Release protection operationTWI sensor is Attach TWI sensor A12 Error Heating or Hot water supply heater failure E04 Error F04 Error TD sensor failure F03 Error TC sensor failureF06 Error TE sensor failure Yes Replace water heat exchange control board F08 Error to sensor failure F07 Error TL sensor failureF10 Error TWI sensor failure F14 Error TTW sensor failure F11 Error TWO sensor failureF17 Error TFI sensor failure F19 Error THO sensor detach failure F18 Error THO sensor failure F23 Error Lo pressure sensor detach failure F20 Error TFI detach failureLo pressure sensor Yes Is detached CN207 When operation TFI s ensor Is attached to pipe F30 Error Enhanced IC failure F29 Error Eeprom failureL07 Error L09 Error Outdoor Unit Failure Detection Diagnosis procedure for each check code Is normal Check and correct Board side Wiring connectionCompressor is normal Yes Lock compressor Replace it Yes Communication failure between MCUs Heat sink temperature sensor TH failure → See F13 detailsCheck outdoor control board If defective, replace it Eeprom failure → See F31 details Power voltage abnormally Yes Heat sink overheat failure Deal with short circuit Short circuit, etc YesOutdoor control Is cleared, Blower is not blocked SW804 SW801 Way valve invert failure Yes Outdoor fan operates normally Check the same item as Heating operationElement Short circuit Diagram Yes Power voltage is normal Check wiring 230ACV ±Correct wiring Replace outdoor board Replace fan motor TL sensor connector CN604 is connected Characteristic tableTL sensor resistance characteristic is normal Correct TE sensor TS sensor resistance characteristic is normal Suction temperature sensor TS failure100 TC, TWI, TWO, TFI, TTW, TE, TS, to sensors 101TD, TL sensors Operation check mode Operation check by PC board switchOperation check mode Rotary Check contents Remark Switch Brief method for checking the key components Component name Check procedureHydro unit 103 104 Outdoor unit802H-E 32.6 ± 3.3 Ω 14.8 ± 1.5 Ω Hydro unit Hydro unit Setting 10Hydro unit and Outdoor Unit Settings105 106 Hydro unit Function Code Setting Details First shipment 107 Details Fist shipment 108Nighttime low-noise end time 109 Trial Operation Set temperature A40 B35 C30 D25 E20 20 T1 Auto Curve Setting110 TSC-F 111 Time Setting Set temperature, day , and time Scheduled Operation Setting112 113 Frost Protection Setting 114 Night Operation Setting 115 Anti Bacteria Setting Nighttime Low-noise Setting Hot Water Boost Setting116 Rated Operation Setting Forced Defrosting Setting117 118 Display Function of Set Temperature and Other Settings 119 Failure History Calling Function 120 Outdoor unit Outdoor Unit Setting 121 Function and details 122 123 124 Item setting Temperature sensorCurrent Compressor PMV openness Operation Pulse Frequency LED indication 125 Operation when press button switch SW801 is pressedSW804 126 SW804 Operation when press button switch SW801 is pressed Work procedure Remarks 11How to Exchange Main PartsHydro Unit 127 128 Remote controller cableRemote Controller holder 129 Electric parts assemblyRelay board MgSW 130 131 Exchange parts name Work procedure RemarksExpansion vessel Pump 132Fixing Board 133 Exchanger inlet pipe so that the wire is place onManometer 134 135 136 Outdoor Unit 2-1. HWS-802H-E 137 138 Remove the power source cable from the powerLead CN202 Black 139 Fan motor lead Binding tie Compressor lead, Relay connector Propeller fan Turn it right to loosen 140Flange nut Fan motor 141 142 143 Spring 144Valve body Pulse motor 145 146 147 Inverter assemblyHeat exchanger Valve fixing board Case thermostat, fan motor 148Reactor lead CN05 White 149 Name Electric parts Reactor Replacement 1Perform the stepReactor lead Reactor lead Binding tie Reactor body Fixing rubber Projection/Refrigerant cycle side Fan motor 150 Compressor nut 3 nuts 151 152 153 Pulse motor valve coil 1. How to remove 1Perform the stepRecess Pulse motor valve body Positioning Motorized Projection Control valve coil Inspection items 12Periodic Inspection Items154 155 13Part Exploded View, Part List 156 157 Outdoor Unit 158HWS802H-E 002 159 Sensor assembly 701 F6 TS, TE, TD sensor Inverter Assembly HWS-802H-E160 TD, TL sensor 161 Outdoor Unit HWS-1102H-E, 1402H-E 162 163 164 Inverter Assembly HWS-1102H-E, 1402H-ETS, TE, to sensor 43158190 165Reactor 4316V357 166