Manual Toshiba HWS-1402XWHM3-E

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  • Toshiba HWS-1402XWHM3-E - page 1

    Toshiba Model name: Outdoor Unit HWS-802H-E HWS-1102H-E HWS-1402H-E AIR TO WATER HEAT PUMP Hydro Unit HWS-802XWHM3-E HWS-802XWHT6-E HWS-1402XWHM3-E HWS-1402XWHT6-E HWS-1402XWHT9-E Hot Water Cylinder HWS-1501CSHM3-E(-UK) HWS-2101CSHM3-E(-UK) HWS-3001CSHM3-E(-UK) SERVICE MANUAL A09-002 +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 1 Monday , Octobe ...

  • Toshiba HWS-1402XWHM3-E - page 2

    1 Toshiba Contents 1 SAFETY PRECAU TIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 NEW REFRIGERANT (R410A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2-1.Safety During Inst allation an d Service . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Toshiba HWS-1402XWHM3-E - page 3

    2 Toshiba 9 Method of Defect Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 9-1.Matter s to be con firmed fir st . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 9-1-1.Che ck the po wer supply voltage . . . . . . . . . . . . . . . . . ...

  • Toshiba HWS-1402XWHM3-E - page 4

    3 Toshiba 1 SAFETY PRECAUTIONS The unit and th is servi ce guide li st very import ant safety pre cautions. Understan d the follow ing detail s (indicat ions and symbol s) before rea ding the body text , and follow the instruc tions. [About indication] * Property damag e indicate s extended dama ge to property, furniture, livesto ck, or pets. [Abou ...

  • Toshiba HWS-1402XWHM3-E - page 5

    4 Toshiba <No modification> Do not modify the unit. • Do not disassemble or modify the parts also. • A fire, an electric shock, or an injury may occur. <Use specified parts> Use the specified parts ( ∗ ) w hen replacing them. • Using parts other than specified ones may cause a fire or an electric shock. ∗ : For details, see th ...

  • Toshiba HWS-1402XWHM3-E - page 6

    5 Toshiba <Check insulation> After the w ork is completed, check w ith an insu lating-resistance tester (500V) that the insulation resistance betw een the live and dead-metal parts is 2 M Ω or higher. • A low insulation resistance may cause a disaster at a customer site due to electrical leakage or an electric shock. <Ventilate> Vent ...

  • Toshiba HWS-1402XWHM3-E - page 7

    6 Toshiba 2 NEW REFRIGERANT (R410A) This Air to Water Heat Pump adopts a new refrigeran t HFC (R410A ) to prevent de structi on of the ozone l ayer. The workin g pressure of R410A refrigerant is 1.6 times higher than that of th e conventio nal refriger ant R22.Th e refrigera nt oil i s also chang ed for the new re frigerati on. Therefor e, during i ...

  • Toshiba HWS-1402XWHM3-E - page 8

    7 Toshiba 2-2. Installing refrigerant pipe 2-2-1. Steel pipe and joint For refrig erant piping , steel pipe and joint s are mainly used. Sele ct those com ply with JIS (Japanese Industrial Standards ) for a serv ice work. Also, us e such cle an piping ma terials t hat less i mpuriti es attach t o the insi de of pipe and joints . Copper pipe Use cop ...

  • Toshiba HWS-1402XWHM3-E - page 9

    8 Toshiba 2-2-2. Processing of piping materials When installing refrigerant pipe, preve nt water or du st from enter ing the pipe, a nd do not use o il other than lu bricant used for Air to Water He at Pump. Ma ke sure that no ref rigerant lea k occurs. If piping ne eds lubricat ion, use lubr icating oil whose water content is r emoved. After the o ...

  • Toshiba HWS-1402XWHM3-E - page 10

    9 Toshiba Flare connecting procedure and precautions 1) Make su re that the fl are and connec ting porti ons do not have an y flaw and dust . 2) Corre ctly ali gn the flared surface and t he connecti ng axis. 3) Tight en the fla re with d esignated torque by mean s of a torq ue wrench. The tight ening torque for R410A is the same as that for the co ...

  • Toshiba HWS-1402XWHM3-E - page 11

    10 Toshiba 2-3. Tools 2-3-1. Necessary tools In Air to W ater Heat P ump using R41 0A, the ser vice port di ameter of pa cked valv e of the outdoo r unit is c hanged to prevent mixin g of other refrige rant. To reinfo rce the press ure resistance , flare dimension s and opposite sid e dimensio ns of fl are nut (F or Ø 12.7 copper pi pe) of th e re ...

  • Toshiba HWS-1402XWHM3-E - page 12

    11 Toshiba 2-4. Recharging of refrigerant Recharge, if necessary , the sp ecified amo unt of new r efrigerant according t o the followin g procedu re. NOTE • Never charge ref rigerant ex ceeding the specified amount. • I f the specif ied amount of refrigeran t cannot be char ged, charge i t a littl e at a time whi le running r efrigerant recove ...

  • Toshiba HWS-1402XWHM3-E - page 13

    12 Toshiba NOTE • Make sure that t he setting is appropriat e so that liq uid can b e charged. • A cylinder wi th siphon ena bles li quid to be char ged without the cylinde r turned upsi de down. NOTE • B ecause R410A is HFC mix ed refrigera nt, chargi ng with gas ch anges the char ged refrige rant composi tion, causing th e equipment ch arac ...

  • Toshiba HWS-1402XWHM3-E - page 14

    13 Toshiba 2-5. Brazing of pipes 2-5-1. Materials of brazing Silver brazing metal Silver brazing metal is an alloy main ly comp osed of silver a nd copper. It uses ir on, copper, or copper allo y, and is rel atively expensiv e though it ex cels in sol dering. Phosphor bronze brazing metal Phosphor b ronze braz ing metal is g enerally used to join c ...

  • Toshiba HWS-1402XWHM3-E - page 15

    14 Toshiba 5) Use th e reducing va lve to adjus t the nitro gen gas flow sp eed to 0.05 m 3 /hour or 0.02 MPa (0.2 kgf/cm 2 ). 6) Afte r the steps abo ve, keep the ni trogen gas flowing until t he pipe coo ls down to a certain extent. (Te mperature wh ere the pipe i s cool enough to be tou ched by hands) 7) Remove the flux comple tely after brazing ...

  • Toshiba HWS-1402XWHM3-E - page 16

    15 Toshiba 3 Specifications *1 Heating performance mea surement conditions: outside air temperatu re 7 or 6 °C, water supply tempe rature 30 °C, outlet tem perature 35 °C, ref rigerant piping length 7.5 m (no height difference), ca pacity 97%, COP 95%, ope rating noise +3 dB *2 Cooling performance measu rement conditions: o utside air temperatur ...

  • Toshiba HWS-1402XWHM3-E - page 17

    16 Toshiba *1 Heating performance mea surement conditions: outside air temperatu re 7 or 6 °C, water supply tempe rature 30 °C, outlet tem perature 35 °C, ref rigerant piping length 7.5 m (no height difference), ca pacity 97%, COP 95%, ope rating noise +3 dB *2 Cooling performance measu rement conditions: o utside air temperature 35 °C, water s ...

  • Toshiba HWS-1402XWHM3-E - page 18

    17 Toshiba 4 Outside Drawing 4-1. Hydro unit HWS-802XWHM3-E, 802XWHT6-E HWS-1402XWHM3-E, 1402XWHT6-E, 1402X WHT9-E 960 Anchor bolt long hole pitch B leg part 40 380 40 20 20 72.5 72.5 2-dia.12x17 long hole (for dia.8-10 anchor bolt) 2-dia.12x17 U-shape hole (for dia.8-10 anchor bolt) A leg part Remote controler 135.5 158 186.5 59.5 144.5 116 19.5 3 ...

  • Toshiba HWS-1402XWHM3-E - page 19

    18 Toshiba 4-2. Outdoor unit HWS-802H-E Portion B Drain hole ( 25 burring hole) Portion A Air outlet 900 Air inlet Air inlet 5-Drain hole ( 20 88 burring hole) ( 12 17 long hole) Mounting bolt hole Details of portion A Details of portion B Mounting bolt hole ( 12 17 U-shape hole) Name Description Refrigerant piping outlet Indoor and outdoor connect ...

  • Toshiba HWS-1402XWHM3-E - page 20

    19 Toshiba HWS-1102H-E, 1402H-E Portion B 96 39 48 54 600 Portion A 70 34 75 46 170 60 380 200 17.5 128 Air inlet 118 74 383 Air outlet 150 17.5 365 Mounting bolt hole Power source intake hole Mounting bolt hole Details of portion A 40 40 Details of portion B 12 2 1 Description 38 knockout hole Name 65 83 Knockout for lower part of piping Z arrow v ...

  • Toshiba HWS-1402XWHM3-E - page 21

    20 Toshiba 4-3. Hot water cylinder 550 595 2066.6 2040 550 595 111 4 1090 595 1497.6 1474 550 Specification for UK only Specification for UK only Specification for UK only HWS-3001CSHM3-E(-UK) HWS-2101CSHM3-E(-UK) HWS-1501CSHM 3-E(-UK) +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 20 Monday , October 5, 2 009 2:09 PM ...

  • Toshiba HWS-1402XWHM3-E - page 22

    21 Toshiba 5 Wiring Diagram 5-1. Hydro Unit 11 3 3 1 2 3 4 5 6 1 4 5 6 2 3 WHI WHI Transformer ORN ORN RED RED BRW BRW CN102 (WHI) 1 1 3 2 3 CN101 (WHI) CN202 (YEL) BLK BLK CN201 (WHI) 22 11 Thermal protector (auto) 75 ± 3 High pressure switch 4.15MPa RED YEL CN200 (RED) 2 33 1 7 2 GRN 2 2 8 1 CN211 (BLK) 2 3 4 1 Flow switch 4 1 CN210 (RED) 2 3 CN ...

  • Toshiba HWS-1402XWHM3-E - page 23

    22 Toshiba 5-2. Outdoor Unit Control board (Blue) ( White ) HMS-1102, 1402H-E only ( White ) ( White ) Upper ( White ) Operating power 4-way valve coil Reactor 230V 50Hz Earth screw Earth screw Earth screw Hydro unit Outdoor unit Power supply single phase ( Yellow ) ( White ) ( White ) ( Yellow ) ( White ) ( White )( White )( White ) ( White ) WR B ...

  • Toshiba HWS-1402XWHM3-E - page 24

    23 Toshiba 5-3. Hot Water Cylinder Unit 12 TB03(230V) AB TB06(TTW) Supply 230 V from hydro unit Cable size 1.5 mm 2 (minimum) To hydro unit Green / Yellow Green / Yellow Blue Double pole thermal cut out Blue Brown Brown TTW sensor Hot water cylinder heater +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 23 Monday , October 5, 2 009 2:09 PM ...

  • Toshiba HWS-1402XWHM3-E - page 25

    24 Toshiba 6 Key Electric Component Rating 6-1. Hydro Unit HWS-802XWHM3-E, 802XWHT6-E O ········· Applied OP ······· O ptional accessory No. Component name Model name Type name Rating M3-E T6-E 1 Circulat ing pump OO UPS025-65 K 130 AC230 V 0.54 A (MAX) 2 Backup h eater 6 kW OO – AC 400 V (3N) 6 kW (A C230 V 3 kW compatib le) 3 Ba ...

  • Toshiba HWS-1402XWHM3-E - page 26

    25 Toshiba HWS-1402XWHM3-E, 1402XWHT6-E, 1402X WHT9-E O ········· Applied OP ······· O ptional accessory No. Component name Model name Type name Rating M3-E T6-E T9-E 1 Circulat ing pump OOO UPS25-80 130 AC230 V 0.8 3 A (MAX) 2 Backup h eater 6 kW OO – AC 400 V (3N ) 6 kW ( AC230 V 3kW compatible) 3 Backup h eater 9 kW O– AC 400 ...

  • Toshiba HWS-1402XWHM3-E - page 27

    26 Toshiba 6-2. Outdoor Unit HWS-802H-E No. Component name Type name Rating 1 Compress or DA220A2F-22L 2 Outdoor fan moto r ICF-280-A 60-1 Outpu t 60 W 3 4-way valve coil VHV-01AP5 52B1 AC230 full-wave rect ifier input, alive time 10 sec or le ss 4 Pulse motor v alve (PMV) coil CAM-MD12T F-15 D C12 V 5 Compress or case thermostat US- 622KXTMQO -SS ...

  • Toshiba HWS-1402XWHM3-E - page 28

    27 Toshiba HWS-1102H-E, 1402H-E No. Component name Type name Rating 1 Compress or DA422A3F-25M 2 Outdoor fan moto r (x2) ICF-280-A 100-1 Output 100 W 3 Reactor (x2 ) CH-44 1.4 mH, 25 A 4 4-way valve coil U KV-A038 AC230 V full-wave rec tifier input , alive time 10 s ec or less 5 Pulse motor v alve (PMV) coil VHV-01AP55 2B1 DC 12 V 6 Board MCC-1560 ...

  • Toshiba HWS-1402XWHM3-E - page 29

    28 Toshiba 6-3. Hot Water Cylinder Unit O ········· Applied No. Component name Model name Type na me Rating 1501 CSH M3-E (-UK) 2101 CSH M3-E (-UK) 3001 CSH M3-E (-UK) 1 Hot water cylinder he ater OOO – AC230 V 2.75 KW 2 Hot water cylinder t emperature sensor (TTW s ensor) OOO – 10 k Ω (25°C) 3 Thermal cut-out OOO – Operatin g temp ...

  • Toshiba HWS-1402XWHM3-E - page 30

    29 Toshiba 6-4. Water Heat Exchange Control Board HWS-802XWHM3-E, 802XWHT6-E HWS-1402XWHM3-E, 1402XWHT6-E, 1402X WHT9-E Relay board connector CN501 Transformer input connector CN101 AC power supply connector CN100 Serial input connector CN305 Backup heater 2 drive connector CN606 3WV drive connector CN602 Transformer connector CN102 Flow switch con ...

  • Toshiba HWS-1402XWHM3-E - page 31

    30 Toshiba 6-5. Outdoor Control Board HWS-802H-E Electrolytic capacitors Reactor connection connecto r Compressor output terminals CN202 CN201 CN200 Fan motor output CN300 (White) Case thermostat connector CN609(Blue) 4-way valve connector CN701(White) Compressor ON output connector CN704( Blue ) Heater output connector CN703(Grey) External input c ...

  • Toshiba HWS-1402XWHM3-E - page 32

    31 Toshiba HWS-1102H-E, 1402H-E Fan motor output (Upper) CN400(White) Fan motor output (Lower) CN300(White) Case thermostat connector CN609(Blue) Power circuit protection fuse F100(250V,3.15A, plastic case) 4-way valve connector CN701(White) Compressor ON output connector CN704(Blue) External input connector CN610(Yellow) Special operation switches ...

  • Toshiba HWS-1402XWHM3-E - page 33

    32 Toshiba 7 Refrigeration Cycle / Water System Diagram 7-1. Water System Diagram M M Fan coil unit Radiator unit Floor heating By-pass valve (locally procured) By-pass valve (locally procured) Moterized mixing valve (locally procured) AC230V Buffer tank(locally procured) AC pump (locally procured) AC pump max : 10bar Strainer (locally procured) 40 ...

  • Toshiba HWS-1402XWHM3-E - page 34

    33 Toshiba Installation example of water circuit The water c ircuit f or a system without bu ffer tank ((1), (2), (3), (5)) requires 5 or more branc hes of Flo or heating or Radiator etc. Less than 5 br anches may cause a flow d eficiency. In this case, please provide a buff er tank and sec ondary pu mps as shown in (4). (1) (2) (3) (4) (5) (6) +00 ...

  • Toshiba HWS-1402XWHM3-E - page 35

    34 Toshiba 7-2. Refrigeration Cycle System Diagram HWS-802XWHM3-E, 802XWHT6-E/802H-E HWS-1402XWHM3-E, 1402XWHT6-E , 1402XWHT9-E/1102H-E, 1402H-E P TWO THO TWI TC TE TO TS TD Outdoor unit Refrigerant R410A ... 1.8 kg Expansion vessel Backup heater Manometer Low pressure sensor Pressure switch W ater vent valve Safety valve Air vent valve Circulating ...

  • Toshiba HWS-1402XWHM3-E - page 36

    35 Toshiba 8 Operational Description This chapt er describe s the worki ng circuit and control of Air to W ater Heat Pu mp about the fol lowing ope rations. Item Page 8-1 Basic Operat ion 1) Operation control 2) Hot water supply operation 3) Heating operation 4) Cooling operation 36-38 8-2 Operatio n Mode and C ontrol Met hod 1) Hot water supply op ...

  • Toshiba HWS-1402XWHM3-E - page 37

    36 Toshiba Item Operation flow and app licable data, etc. Operation description 8-1. Basic Operation 1) Operation contr ol Remote controller 1. Purpose The operations of the hydro unit and the outdoor unit are controlled according to user-defined operation condition settings. 2. Details The operation controls include those shown in the left. 3. Ope ...

  • Toshiba HWS-1402XWHM3-E - page 38

    37 Toshiba 8-1. Basic Operation 2) Hot w ater supply operation Hot water supply operation 1. Purpose Hot water supply 2. Details This section performs hot water s upply op erati on acco rding t o heat ing conditions specified for the steps in the left. 3. Operations 1) Set the [HO T WATER] remote controller button to “ON”. 2) The hy dro unit co ...

  • Toshiba HWS-1402XWHM3-E - page 39

    38 Toshiba 8-1. Basic Operation 4) Cooling operation NOTE: No coding mode i n default set ting. When use t he cooling mode , please change th e FC02 to “ 0”. Relat ed FC 1. Purpose Cooling 2. Details This section performs cooling operation according to cooling conditions specified for the steps in the left. 3. Operations 1) Set the [ZONE1, 2 ] ...

  • Toshiba HWS-1402XWHM3-E - page 40

    39 Toshiba Item Operation flow an d applicable data, etc. 8-2. Operation Mode and Control Method The following shows the operation modes and controlled objects. O Possible × Not possible 1) Hot w ater supply operation 1) Operation start condition When the [HOT WATER] remote controller button is pressed and the following operation start condition i ...

  • Toshiba HWS-1402XWHM3-E - page 41

    40 Toshiba 8-2. Operation Mode and Control Method 2) Heating operation <Operation only for ZONE1> • This operation is enabled when DP_SW12_2 ZONE1 is set to "ON" (default). • The remote controller displays settings, and only the set temperature of can be changed. <Operation for ZONE1 and ZON E2 (2 temperatures control)> ? ...

  • Toshiba HWS-1402XWHM3-E - page 42

    41 Toshiba 8-2. Operation Mode and Control Method 3) Cooling operation Pressing the [ZONE1, 2] button and then [OPERATION MODE] starts a cooling operation. 1) Operation start condition Pressing the [ZONE1, 2] button and then [OPERATION MODE] starts a cooling operation. 2) Operation mode selection An operation mode is determined according to the tem ...

  • Toshiba HWS-1402XWHM3-E - page 43

    42 Toshiba 8-2. Operation Mode and Control Method 5) Simultaneous operations of "hot wa ter supply" and "cooling" For simultaneous operations of "hot water supply" and "cooling", basically cooling runs by a heat pump operation, and hot water supply by a heater operation. * Note that after a "cooling" ...

  • Toshiba HWS-1402XWHM3-E - page 44

    43 Toshiba 8-2. Operation Mode and Control Method 7) Hot wa ter boost operation A hot water boost operation boils water quickly to the set temperature TSC_H = 75°C (FC_09). 1) How to operate • When pressing the [HOT WATER BOOST] button after pressing the remote controller [HO T WATER] button, a heat pump operation in progress in the heating side ...

  • Toshiba HWS-1402XWHM3-E - page 45

    44 Toshiba 8-2. Operation Mode and Control Method 8) Anti bacteria (ANTI BACTERIA) o peration An anti bacteria operation regularly per forms a Hot water supply operation with the set temperatu re TSC_H = 75°C (can be set with FC_0A). 1) How to operate • Pressing the [HOT WATER] button and then the remote controller [ANTI BACTERIA] button changes ...

  • Toshiba HWS-1402XWHM3-E - page 46

    45 Toshiba 8-2. Operation Mode and Control Method 9) Night set back (NIGHT SET BACK) operation A night set back operation performs heating at 5°K lower and cooling at 5°K temperatures against the remote controller set temperature from the setting start time (22:00) to the end time (6:00) every day. Note) • Set the remote controller time before ...

  • Toshiba HWS-1402XWHM3-E - page 47

    46 Toshiba 8-2. Operation Mode and Control Method 11) AUTO operation An auto operation sets the water temperature T SC_F depending on the outside temperature TO by following the table below. 1) How to operate • Pressing the remote controller [ZONE1, 2] button and then the [AUTO] button starts AUT O operation for heating. An operation starts at th ...

  • Toshiba HWS-1402XWHM3-E - page 48

    47 Toshiba 8-2. Operation Mode and Control Method 12) Nighttime l ow-noise operation A night time low-noise operation reduces operation frequency and the number of outdoor fan rotations for a cert ain period during nighttime as noise control for neighborhood. Maximum operation frequency 40.2 Hz (Hot water supply/ Heating/ Cooling) Maximum fan tap 4 ...

  • Toshiba HWS-1402XWHM3-E - page 49

    48 Toshiba 8-3. Hydro Unit Control 1) Capacity contr ol (compressor, high-temperature release, low-temperature r elease) This unit controls the compressor frequency and heater output so that the water outlet temperature matches the remote controller set temperature. 1-1) Compressor control • Calculates the different between the remote controller ...

  • Toshiba HWS-1402XWHM3-E - page 50

    49 Toshiba 8-3. Hydro Unit Control 1-2) High temperature r elease control A heat pump operation is performed as shown in the table below according to the TC sensor detecting tempera ture. • For the detected temperature, TC (= TWO + 2 deg ree) of a heat pump oper ation is used. The values of T7 through T10 vary depending on TWI. (See the tab le be ...

  • Toshiba HWS-1402XWHM3-E - page 51

    50 Toshiba 8-3. Hydro Unit Control 2) Heater control 2-1) Hot w ater supply operation During a hot water heat pump operation, the u nit energizes the hot water cylinder heater (2.75 kW) when all the following conditions are met. Note that w hen the hot wate r supply set temperature ( TSC_F) is reached, the unit stops energizing the heater. • When ...

  • Toshiba HWS-1402XWHM3-E - page 52

    51 Toshiba 8-3. Hydro Unit Control 2) Control at the time of heating heater operation • Controlled Object: Backup heater, Booster heater The backup heater control starts when 13 minutes has passed after the heating heat pump operat ion started. The backup heater control increases, decreases, or maintains the number of heaters every 10 minutes (FC ...

  • Toshiba HWS-1402XWHM3-E - page 53

    52 Toshiba 8-3. Hydro Unit Control 3) Circulation pump control One circulation pump (enhancing pump P2) can be connected to the unit in addition to the built-in circulation pump P1. DP_SW10-1, 3 within the water heat ex changer enables the built-in pump P1 to be set either to usual energization or only HP and backup heater energization, and also en ...

  • Toshiba HWS-1402XWHM3-E - page 54

    53 Toshiba 8-3. Hydro Unit Control 5) Mixing Valve control (2-temperature heating control) To set different radiator unit supply temperatures or floor heating supply temperatures, the unit performs Mixing Valve control. When Mixing Valve "Yes" is selected, the unit controls Mixing Valve every 4 minutes ( FC) based on the difference T SC_ ...

  • Toshiba HWS-1402XWHM3-E - page 55

    54 Toshiba 8-3. Hydro Unit Control 7) Automatic restart control The unit records operation information before a power outage and retrieves the information after the pow er is on again to restart automatically the operation with the inform ation. 7-1) Operation dur ing remote controller • The operation status before a power o utage automatically r ...

  • Toshiba HWS-1402XWHM3-E - page 56

    55 Toshiba 8-3. Hydro Unit Control 8-2) Piping freeze prevention control 2 TC and TWO activates freeze prevention regardless of a heat pump operation mode. 1) Determination condition: TWO>20°C, 2*T C+TWO<-12°C is continuously detected for 30 seconds or longer. Or TWO 20°C , TC+TWO<4°C is continuously detected for 30 seconds or longer. ...

  • Toshiba HWS-1402XWHM3-E - page 57

    56 Toshiba 3. Hy dro Unit Control 10) Room temperature thermostat control (Option board TCB-PCM03E is necessary. Connect the connection cable to the water heat exchange board CN211.) When the room thermostat is connected and heating or cooling operates with DP_SW12-4 set to ON, an room thermostat operation is performed. 10-1)Heating thermostat oper ...

  • Toshiba HWS-1402XWHM3-E - page 58

    57 Toshiba 8-4. Outdoor unit control 1) PMV (Pulse motor valve) control Valve opening is controlled using the expansion valve with a pulse motor according to a heat pump operation status. • PMV is controlled between 30 and 500 pulses during an operation. • At the time of a cooling operation, PMV is controlled with the usual target value of 1 to ...

  • Toshiba HWS-1402XWHM3-E - page 59

    58 Toshiba 8-4. Outdoor unit control 3) Current r elease control The number of compressor rotation is controlled so that current value of the compressor drive ci rcuit does not exceed the specified value. • The outdoor unit detects the input current. • The outside air temperature is detected and used to set the specified value of current. • T ...

  • Toshiba HWS-1402XWHM3-E - page 60

    59 Toshiba 8-4. Outdoor unit control 5) Outdoor fa n control The outdoor side control part controls the number of fan motor rotations by receiving an operation instruction from the indoor side (Hydro unit) control part. * Although the fan motor is a DC motor, which has non-step variable numbers of rotations, it is limited to some steps for conven i ...

  • Toshiba HWS-1402XWHM3-E - page 61

    60 Toshiba 8-4. Outdoor unit control 5-2) Hot w ater supply and heating fan control 1) The TE sensor, TO sensor and operation frequency control the outdoor fan. (The minimum W1 to the maximum are controlled according to the table below.) 2) For 3 minutes after the start, the max imum fan tap for each zone that is shown in the following table is fix ...

  • Toshiba HWS-1402XWHM3-E - page 62

    61 Toshiba 8-4. Outdoor unit control 6) Defrosting control This control defrosts the outdoor heat exchanger. The temperatur e sensor (TE sensor) of the outdoor heat ex changer determines frost formation, and then defrosting is performed in the 4-way valve reverse defrosting method. 1) During a heating operation, defrosting is performed when the TE ...

  • Toshiba HWS-1402XWHM3-E - page 63

    62 Toshiba 8-4. Outdoor unit control 7) Winding heating control 1) This control energizes the inactive compressor instead of th e case heater to warm the compressor. The purpose is to prevent the refrigerant from staying inside the compressor. 2) After the unit is installed, failure to perform energization for the given time period may cause the co ...

  • Toshiba HWS-1402XWHM3-E - page 64

    63 Toshiba 8-4. Outdoor unit control 10) High temperature release control 1) To prevent excessive hi pressure rise, operation frequency is controlled by the TL sensor when cooling and by TWO sensor when heating. 2) If the TL sensor when cooling or the T WO sensor when heating detects an abnormal stop zone temperature , the compressor stops and the ...

  • Toshiba HWS-1402XWHM3-E - page 65

    64 Toshiba 9 Method of Defect Diagnosis In order to di agnose the def ective par t of the heat pump system, fi rst underst and the symptom of the defect. (1) Check th e operation s tatus. (It does not move, or it moves but stops, et c.) (2) Flashin g display o n the dis play part of the hy dro unit. (3) Check t he “check co de” by the remot e c ...

  • Toshiba HWS-1402XWHM3-E - page 66

    65 Toshiba 9-1. Matters to be confirmed first 9-1-1. Check the power supply voltage Check tha t the powe r supply vo ltage is AC230 V± 23 V. If the power s upply vol tage is no t in this range, it may not operate norma lly. 9-1-2. Check for any miswiring of the connection cables between the hydro unit and the outdoor unit The hydro unit an d the o ...

  • Toshiba HWS-1402XWHM3-E - page 67

    66 Toshiba 9-3. Outline of the determination diagram The first d eterminati on of whethe r a defectiv e part is in the hydro unit o r the outdoor un it can be perf ormed by the following me thod. 9-3-1. Procedure of defect diagnosis In the case of a defect, pl ease apply the f ollowi ng procedure i n order to fi nd the defect ive part. 9-3-2. How t ...

  • Toshiba HWS-1402XWHM3-E - page 68

    67 Toshiba 9-3-4. How to diagnose by error code Defect mode detected by the water heat exchange O ... Possible × .... Not possible Check code Diagnostic functional o peration Determination and actio n Number of abnorm alities for confirm ation Detail ed item Operational cause Backup present Automat ic reset A01 Pump or f lowing quantity error 1) D ...

  • Toshiba HWS-1402XWHM3-E - page 69

    68 Toshiba A07 Pressure sw itch operation The press ure switch operates for 300 sec conti nuously during the heat pump operation. O × 1. Almost no or l ittle water fl ow. 2. Defect of th e flow switch. 3. On-load operation unde r the above condition s. 4. De fect in the pressu re switch . 17 9 A08 Low pressure sensor operat ion error The low press ...

  • Toshiba HWS-1402XWHM3-E - page 70

    69 Toshiba F17 TFI sensor err or Open or short c ircuit in the floor temperature s ensor. × O 1. Ch eck the resist ance value and disconnecti on of the floor-i nlet temperature s ensor (T FI). 18 7 F18 THO sensor error Open or shor t circ uit in the heat er outlet temperature s ensor. × O 1. Ch eck the resist ance value and disconnection of the h ...

  • Toshiba HWS-1402XWHM3-E - page 71

    70 Toshiba Defect mode detected by the outdoor unit O ... Possible × .... Not possible Check code Diagnostic functional op eration Determination and actio n Number of abnorm alities for confirm ation Detail ed item Operational cause Backup present Automat ic reset F04 TD sensor error Open or short circu it in the dischar ge temperature s ensor. O ...

  • Toshiba HWS-1402XWHM3-E - page 72

    71 Toshiba H04 Operation of case thermost at When the cas e thermos tat exceeds 125°C. O × 1. Check the refri geration cycle (gas leak). 2. Check the case thermostat and connector . 3. Ch eck that the service val ve is fully open. 4. Defect of the pulse moto r valve. 5. Ch eck for a kinked pipi ng. 49 2 L10 Unset service PC boar d jumper Jumpers ...

  • Toshiba HWS-1402XWHM3-E - page 73

    72 Toshiba P20 High pressur e protectio n operation When an abnormal stop oc curs due to the high pre ssure r elease con trol. When the heat exchange temperature sensor (T L) detects 63°C during the cooling oper ation. When the water outl et sensor (TWO) detects 60°C during the heating or hot water supply operation. O × 1. Ch eck that the servic ...

  • Toshiba HWS-1402XWHM3-E - page 74

    73 Toshiba Defect mode detected by the remote control Check co de Diagnostic functio nal operation Determination and act ion Operational cause Status of air- conditio ning Conditi on Not display ing at all (cannot operate by the remote control) No communicat ion betw een hydro unit an rem ote contro ller • The remote cont rol wiring is not connec ...

  • Toshiba HWS-1402XWHM3-E - page 75

    74 Toshiba 9-4. Diagnosis flow chart for each error code 9-4-1. Hydro unit failure detection [A01] Error Pump flow determination Pump rotates Replace TC sensor Remove waste Dirt clogging inside water circuit 12 M or longer water pipe to a branch, or 5 or less branches Fit buffer tank and the second pump Attach or replace flow switch Connect flow sw ...

  • Toshiba HWS-1402XWHM3-E - page 76

    75 Toshiba [A02] Error Temperature rise and error sh ort circuit Replace TWI, TWO, and THO sensors No (TWI,TWO,THO 70°C) TWI, TWO, and THO sensor characteristics are correct Yes No Water outlet temperature is 70 °C or higher Yes Correct water circuit (To prevent hot water of other circuits from entering) Yes Hot water from boiler or other circuit ...

  • Toshiba HWS-1402XWHM3-E - page 77

    76 Toshiba [A03] Error Temperature rise and error sh ort circuit Replace TTW sensor No (TTW 85°C is detected) TTW sensor characteristic is correct Yes No Hot water cylinder heater is energized Yes No At normal temperature, tank thermostat is energized Yes Replace hot water cylinder thermostat No Hot water cylinder thermostat operates Yes Operation ...

  • Toshiba HWS-1402XWHM3-E - page 78

    77 Toshiba [A04] Error Freeze prevention control When the o utside temp erature or inlet wate r tempera ture is low (a pprox. 20° C or lower) a nd the roo m load is lar ge (operatio n frequency ratin g), the freez e preventio n control may be a ctivated . Excess air inside pump Secure water circulation amount Circulation flow shortage Dirt cloggin ...

  • Toshiba HWS-1402XWHM3-E - page 79

    78 Toshiba [A05] Error Piping freeze prevention control Water heat exchange control board DPSW11-1 is ON Replace backup heater and safety valve Set water heat board DPSW11-1 to ON No (Backup heater NG) Backup heater terminal has 230ACV ( ± 23V) Power is connect to built-in heater terminal Yes Yes Restart TWI 4, TWO 4, or THO 4 is detected Circulat ...

  • Toshiba HWS-1402XWHM3-E - page 80

    79 Toshiba [A07] Error Pressure switch operation (Hot water supply/Heating operation) Replace flow switch Remove waste Flow switch is normal Secure water circulation amount Circulation flow shortage Waste stuck inside water circuit 12 M or longer water pipe to a branch, or 5 or less branches Remove sufficiently excess air Place buffer tank and the ...

  • Toshiba HWS-1402XWHM3-E - page 81

    80 Toshiba [A08] Error Lo pressure sensor lowering operati on failure (Cooling/ Defrosting operation) Replace flow switch Remove waste Flow switch is normal Secure water circulation amount Circulation flow shortage Waste stuck inside water circuit 12 M or longer water pipe to a branch, or 5 or less branches Remove sufficiently excess air Place buff ...

  • Toshiba HWS-1402XWHM3-E - page 82

    81 Toshiba [A09] Error Overheat prevention thermostat failure (Hot water s upply/Heating operation) Put water into water circuit (Recommended: 1 - 2 Bar) Replace heater unit exchanger air vent valve Replace flow switch No No Water cycle contains water Yes Flow switch is normal Yes No At normal temperature, overheat preventive thermostat is normal Y ...

  • Toshiba HWS-1402XWHM3-E - page 83

    82 Toshiba [A11] Error Release protection operation Replace flow switch Remove waste Flow switch is normal Secure water circulation amount Circulation flow shortage Waste stuck inside water circuit 12 M or longer water pipe to a branch, or 5 or less branches Remove sufficiently excess air Place buffer tank and the second pump No Excess air noise co ...

  • Toshiba HWS-1402XWHM3-E - page 84

    83 Toshiba [A12] Error Heating or Hot wa ter supply heater failure Water heat exchanger board DPSW11-1,2 is ON Replace booster heater unit and safety valve Set water heat board DPSW11-1,2 to ON A12 abnormality detection No (Backup heater NG) Backup heater or hot water cylinder terminal has 230ACV ( ± 23V) Power is connect to backup heater or hot w ...

  • Toshiba HWS-1402XWHM3-E - page 85

    84 Toshiba [E04] Error Outdoor unit operates Group address of remote controller is correctly set Yes Check water heat exchanger control board If defective, replace it Check outdoor control board If defective, replace it No Check item code "14" No Yes Hydro unit Internal wiring and connecting wire (1, 2, 3) are correct Correct wiring and c ...

  • Toshiba HWS-1402XWHM3-E - page 86

    85 Toshiba [F03] Error TC sensor failure [F04] Error TD sensor failure [F06] Error TE sensor failure Correct TC sensor connection Replace TC sensor No No TC sensor connector (CN203) is connected Yes TC sensor resistance characteristic is normal Yes Start Replace water heat exchange control board Correct TD sensor connection Replace TD sensor No No ...

  • Toshiba HWS-1402XWHM3-E - page 87

    86 Toshiba [F07] Error TL sensor failure [F08] Error TO sensor failure [F10] Error TWI sensor failure Correct TL sensor connection Replace TL sensor No No TL sensor connector (CN604) is connected Yes TL sensor resistance characteristic is normal Yes Start Replace water heat exchange control board (See characteristic table on page 101) Correct TO se ...

  • Toshiba HWS-1402XWHM3-E - page 88

    87 Toshiba [F11] Error TWO sensor failure [F14] Error TTW sensor failure [F17] Error TFI sensor failure Correct TWO sensor connection Replace TWO sensor No No (See characteristic table on page 101) TWO sensor connector (CN205) is connected Yes TWO sensor characteristic is normal Yes Start Replace water heat exchange control board Correct TTW sensor ...

  • Toshiba HWS-1402XWHM3-E - page 89

    88 Toshiba [F18] Error THO sensor failure [F19] Error THO senso r detach failure Correct THO sensor connection Replace THO sensor No No (See characteristic table on page 101) THO sensor connector (CN206) is connected Yes THO sensor characteristic is normal Yes Start Replace water heat exchange control board Attach THO sensor to pipe Replace THO sen ...

  • Toshiba HWS-1402XWHM3-E - page 90

    89 Toshiba [F20] Error TFI detach failure [F23] Error Lo pressure sensor detach failure Attach TFI sensor to pipe Replace TFI sensor No No TFI sensor is attached to pipe Yes TFI sensor characteristic is normal Yes Replace TWI sensor No (See characteristic table on page 101) (See characteristic table on page 101) TWI sensor characteristic is normal ...

  • Toshiba HWS-1402XWHM3-E - page 91

    90 Toshiba [F29] Error EEPROM failure A failu re is detec ted in the IC10 non-vo latile m emory on the wa ter heat exc hanger board du ring a hot w ater suppl y unit operat ion. Rep lace the servi ce board. * If t he unit doe s not hav e EEPROM inser ted when t he power is turned on, or if EEPROM d ata read o r write is unavailab le, autom atic add ...

  • Toshiba HWS-1402XWHM3-E - page 92

    91 Toshiba 9-4-2. Outdoor Unit Failure Detection Diagnosis procedure for each check code • One check code may indicat e multipl e symptoms. I n such a cas e, see the LE D indica tion on the outdoor board to narrow down the c heck deta ils. • The handy remote c ontrolle r displays a check co de only when the same fai lure repeat edly occurs whil ...

  • Toshiba HWS-1402XWHM3-E - page 93

    92 Toshiba [H02] <Indication 1> <Indication 2> [Compres sor lock] [H04] <Indication 1> <Indication 2> [Case thermos tat operati on] [L10] <Indication 1> <Indication 2> [Model not set ] Only w hen ser vice board is used Check code Outdoor L ED indication Check and Action procedure (No specific description ind icat ...

  • Toshiba HWS-1402XWHM3-E - page 94

    93 Toshiba [L29] * Any of the following abnormality may occur. Seeing the LED on the out door board can det ermine which abnormalit y occurs. Communicati on failure bet ween MCUs, Heat si nk temperatu re sensor ( TH) fai lure, EEPRO M failure, Mode l not specif ied, Heat sink overheat fai lure, gas leak age detectio n, 4-way valve invert failu re & ...

  • Toshiba HWS-1402XWHM3-E - page 95

    94 Toshiba [P03] <Indication 1> <Indication 2> [A bnormal outlet tem perature] [P04] * Any of the following abnormality may occur. Seeing the LED on the out side board ca n determine which abnormali ty occurs. Power source fai lure (Vdc) , Hi pressu re protecti on operation, Ca se thermosta t operation <Indication 1> <Indicatio ...

  • Toshiba HWS-1402XWHM3-E - page 96

    95 Toshiba [P07] <Indication 1> <Indication 2> [Heat sink overheat fail ure] [P15] <Indication 1> <Indication 2> [Gas leakage detection ] Check code Outdoor LE D indication Check and Action procedure (No specific description ind icates outdoor unit parts.) The screws are loose in motor drive element, Q200/300/400, of outdoor ...

  • Toshiba HWS-1402XWHM3-E - page 97

    96 Toshiba [P19] <Indication 1> <Indication 2> [4-w ay valve invert failur e] Outdoor c ontrol boar d operation c heck di rection ( Self-hold valve) 1) With the dip switch SW804 set as in the table below, pres sing SW801 for appr ox. 1 second can check the operation of s witching to coolin g cycle or to heating cycle. • The board are ...

  • Toshiba HWS-1402XWHM3-E - page 98

    97 Toshiba [P20] <Indication 1> <Indication 2> [Hi pressur e protectio n operation] Check code Outdoor LE D indication Check and Action procedure (No specific description ind icates outdoor unit parts.) No Yes Service valve is fully opened. No Open fully service valve Yes Outdoor TL sensor is normal. (Measure resistance) Cooling season ...

  • Toshiba HWS-1402XWHM3-E - page 99

    98 Toshiba [P22] <Indication 1> <Indication 2> [Blower system failu re] Outdoor fan sole oper ation chec k 1) With the dip switch SW804 set as in the table below, pres sing SW801 for appr ox. 1 second can chec k the outdoor fan sole o peration. Pe rform this check to determine which o f upper or lower fan has a problem. • When SW801 i ...

  • Toshiba HWS-1402XWHM3-E - page 100

    99 Toshiba No code <Indication 1> <Indication 2> [Discharge abnormalit y] Compres sor's loss of synchronism due to rapid load chang e, etc. * Although the outdoor LED indicates abnormality, the compres sor res tarts and no abnorma lity is confirme d. * This may occur due to th e open phase of the comp ressor or wiring detach. [F04] ...

  • Toshiba HWS-1402XWHM3-E - page 101

    100 Toshiba [F12] <Indication 1> <Indication 2> [Suction te mperature sen sor (TS) fai lure] [F13] <Indication 1> <Indication 2> [Heat sink te mperature se nsor (TH) failure ] [F15] <Indication 1> <Indication 2> [Heat exch anger sens or (TE, TS) wrong w iring] [F31] <Indication 1> <Indication 2> [EEPR ...

  • Toshiba HWS-1402XWHM3-E - page 102

    101 Toshiba 9-4-3. Temperature sensor, temperat ure-resistance characteri stic table TC, TWI, TW O, TFI, TTW, T E, TS, TO sensor s TD, TL sen sors Typical v alue Typical v alue Temperature (°C) Resistance value (k Ω ) Temperature (°C) Resistance value (k Ω ) (Minimum) (Standard) (Maximum) (Minimum) (Standard) (Maximum) -10 55.42 55.73 60.04 0 1 ...

  • Toshiba HWS-1402XWHM3-E - page 103

    102 Toshiba 9-5. Operation check by PC board switch 9-5-1. Operation check mode This mode al lows to che ck the operat ions of the w ater 2-wa y valve, wat er 3-way valv e, mixing v alve, and c irculati ng pump. Operation check mode (1) Preparatio n • Turn all of the remote contr ols "OFF" for the ho t water supply and heating. • Tu r ...

  • Toshiba HWS-1402XWHM3-E - page 104

    103 Toshiba 9-6. Brief method for checking the key components 9-6-1. Hydro unit No. Component name Check procedure 1 Water heat exch ange temperature (TC) sensor Water inlet te mperature (TWI) s ensor Water outlet t emperature (TWO) sensor Hot water cylinder t emperature (TTW) sensor Floor inlet te mperature (TFI) sensor Remove the c onnector an d ...

  • Toshiba HWS-1402XWHM3-E - page 105

    104 Toshiba 9-6-2. Outdoor unit No. Component name Check procedure 1 Compresso r Ty pe DA220A2F-22 L (802H-E) DA422A3F-25 M (1102,1402H- E) Measure the resist ance valu e of each winding with a tester. 2 Outdoor fan moto r Ty pe ICF-280-A 60-1 (802H-E) ICF-280-A 100-1 (1102,1402H- E) Measure the resist ance valu e of each winding with a tester. 3 4 ...

  • Toshiba HWS-1402XWHM3-E - page 106

    105 Toshiba 10 Hydro unit and Outdoor Unit Settings Hydro unit 1. Hydro unit Setting 1-1. Setti ng sw itch names and posi tions 1-2. SW02 ( Syste m switching 1) 1-3. SW10 ( Pump switching) 1-4. SW11 (H eater Yes/ No sw itching) 1-5. SW12 ( Syste m switching 2) 1-6. SW13 ( Syste m switching 3) SW02 Switching details Factory setting Remarks 02_1 – ...

  • Toshiba HWS-1402XWHM3-E - page 107

    106 Toshiba 2. Hydro unit Func tion Code Setting 2-1. How to set func tion code <Procedure> Perform the following when no opera tion is in progress. 1 Press the SET and TEST and SELECT buttons at the same time for 4 seconds or longer. (See display ) 2 Specify CODE NO. (FC) with the TEMP. button for temperature setting. 3 Select a setting data ...

  • Toshiba HWS-1402XWHM3-E - page 108

    107 Toshiba Function code table FC Item Details First shipment 01 Water heat exchanger capacity 0012: 802XWH**-E 0017: 1402XWH**-E Depends on type 02 Cooling/Non-cooling switching 0000: Cooling 0001: No cooling 0001: No cooling 07 Hot water HP op eration mode upper time limit 00 00: 0 mins - 0120: 12 0 mins 0030: 30 mins 08 Hot Water Boost operatio ...

  • Toshiba HWS-1402XWHM3-E - page 109

    108 Toshiba Remote contr oller func tion code table FC Item Details Fist shipment 05 24H/12H display switching 0: 24H display 1: 12H (AM/PM) display 0: 24H display 09 Nighttime low-noise mode 0: Disabled 1: Enabled 0: Disabled 0A Nighttime low-noise start time 0 - 23 ( 0:00 to 23:00) 22: 22:00 0B Nighttime low-noise end time 0 - 23 (0:00 to 23:00) ...

  • Toshiba HWS-1402XWHM3-E - page 110

    109 Toshiba 3. Trial Operation <Procedure> A trial op eration is availabl e with an act ual operati on in progres s or stopped. A trial oper ation is av ailable i n any of the hot wate r supply, heat ing, or cool ing mode. The co mpressor st arts accord ing to the tri al operati on frequency. A trial op eration aut omaticall y stops afte r 30 ...

  • Toshiba HWS-1402XWHM3-E - page 111

    110 Toshiba 4. Auto Curve Setting FC code sett ing can make fl exible A uto-Curve setting s. <Preparation > 1 Press the TEST and SET and SELECT buttons at the same time for 4 seconds or longer. (See display ) (Make sure t hat no operati on is in pr ogress.) 2 Specify an item code (FC) from among 29 to 2F w ith the TEMP. button for temperature ...

  • Toshiba HWS-1402XWHM3-E - page 112

    111 Toshiba 5. Time Setting 1 Press the TIME button for 4 seconds or longer. ( The screen moves to the t ime setting mode.) (See display ) Day, time, , and ind ications blink. (Time sett ing is avai lable d uring an operat ion.) 2 Specify a day to be set. Press the DAY button to select th e current day. The symbol mo ves along above the days. ( mo ...

  • Toshiba HWS-1402XWHM3-E - page 113

    112 Toshiba 6. Scheduled Operation Setting Schedule set ting makes th e following m odes to b e flexibly se t: hot water supply, he ating, cooling , hot water supply and heating , hot water su pply and cooli ng, and stop, and set tempera ture. 6-1. How to set sc hedule d operatio n <Preparation > Set the remot e controll er time. 1 Press the ...

  • Toshiba HWS-1402XWHM3-E - page 114

    113 Toshiba 6-2. How to star t and cancel schedul e operation <Operati on start> Without sche dule ope ration set, press the r emote cont roller SCHEDULE butto n. blinks. Pressin g the SET button during the 5- second bli nking chang es to lit, and the sc hedule operat ion starts . <Operati on cancel> With schedule operat ion set, pre ss ...

  • Toshiba HWS-1402XWHM3-E - page 115

    114 Toshiba 8. NIGHT Operation Setting For nightti me hours, th is setti ng changes set temperatur e of heating o r cooling by 5k as save operat ion. 1 Press the ZONE1,2 button to start a heating or a cooling operation. (See display ) (Nightt ime operati on is not avai lable for hot water sup ply. Use the schedule oper ation.) 2 Pressing the NIGHT ...

  • Toshiba HWS-1402XWHM3-E - page 116

    115 Toshiba 9. Anti Bacteria Setting This sett ing regular ly raises th e hot water cyl inder temper ature to preve nt bacteri a from growin g. 1 Press the HOT WATER button to start a hot water supply operation. (Normal hot water su pply oper ation) (No anti ba cteria s etting is provided to he ating and coo ling.) 2 Pressing the ANTI BACTERIA butt ...

  • Toshiba HWS-1402XWHM3-E - page 117

    116 Toshiba 10. Hot Wate r Boost Settin g This sett ing heats the water whenev er necessar y by using the heat pu mp and hot water cylinder heat er. 1 Press the HOT WATER button to start a hot water supply operation. (Normal ho t water suppl y operation) 2 Pressing the HOT WATER BOOST button display s the symbol. (See display ) (The set temper atur ...

  • Toshiba HWS-1402XWHM3-E - page 118

    117 Toshiba 12. Forced Defrosting Setting The FC code set ting (See 2- 2) can activ ate the force d defrosti ng mode for the out door unit ope ration. (Preparation ) 1 Press the remote controller buttons, TEST , SET , and SELECT , at the same time for 4 seconds or longer.(Make sure that no opera tion is in progress.) 2 Specify CODE NO. (FC) 46 with ...

  • Toshiba HWS-1402XWHM3-E - page 119

    118 Toshiba 14. Display Function of Set Temperature and Other Settings ■ Sensor temperature display calling <Details> This func tion call s the servi ce monito r mode from the remote contr oller to show the da ta of the remot e controll er, the hydro uni t, and outdoor unit. <Procedure> 1 Press the TEST and CL buttons at the same time ...

  • Toshiba HWS-1402XWHM3-E - page 120

    119 Toshiba 15. Failure History Calling Function <Details> This functio n calls the previous fa ilure details. <Procedure> 1 Press the TEST and SET buttons at the same t ime for 4 seconds or longer to call the service check mode. The service check lig hts up with CODE No. "01 " displaye d at first, and the lat est warnin g det ...

  • Toshiba HWS-1402XWHM3-E - page 121

    120 Toshiba Outdoor unit 16 Outdoor Unit Setting 16-1. Refrige rant recov ery con trol Although HFC refrig erant is "Oz one depleti on potential = 0", emiss ion control is applie d to it as a greenho use effect gas. This model h as a switch for the outdoor unit to perfo rm an environ ment-frien dly refriger ant recover y operation (pump d ...

  • Toshiba HWS-1402XWHM3-E - page 122

    121 Toshiba 16-3. Ser vice support funct ions (LED indi cation, Sw itch operation method) The follow ing setti ngs are avai lable wi th dip swi tches. (1) Overview Using 3 di p switc hes (SW802, S W803, SW8 04) and 2 push- button swi tches (SW 800, SW801) can make set tings availabl e and con firm oper ations. For operatio n For display Note: All t ...

  • Toshiba HWS-1402XWHM3-E - page 123

    122 Toshiba (2) LED indicatio n switchi ng (SW800, S W803 operati on) (2) -1. Indication sw itching list Operating SW803 can swi tch the ind ications of LED D800 t o D804 on the outd oor control board. Swit ch Function and details Abnormality indicat ion (Curr ent abnorma lity) This s witch indicat es the c urrent abnor mality. Without an abnor mal ...

  • Toshiba HWS-1402XWHM3-E - page 124

    123 Toshiba (2) -2. Abnormalit y indicati on The current ab normality an d the latest abnormalit y (includi ng the current one) can be iden tified by the LED D800 to D 804 on the outdoo r control bo ard. 1) Setting all th e SW803 d ip switches to OFF indica tes the curr ent abnor mality statu s. 2) Sett ing SW803 di p switch < 1> only to ON i ...

  • Toshiba HWS-1402XWHM3-E - page 125

    124 Toshiba (2)-3. Sens or, Current , Compres sor operati on frequency, P MV openness ind ication The value s detecte d by con troller, suc h as temp erature se nsor or cu rrent value s, can be easily che cked. * TD, TL, and TH show er rors below t he ordinar y temper ature beca use they are sensor s for high te mperature . * Current value fo r the ...

  • Toshiba HWS-1402XWHM3-E - page 126

    125 Toshiba (3) Special operati on for maintena nce and inspe ction (SW 801, SW804) SW801 and SW 804 can perfor m the follow ing speci al operatio ns for maint enance and inspe ction. 1) Switches the dip switch SW80 4. (See th e table be low) 2) Pres ses the push- button swi tch SW801 fo r approx. 1 sec ond. 3) Star ts the funct ions shown b elow. ...

  • Toshiba HWS-1402XWHM3-E - page 127

    126 Toshiba (Note 1) The forced trial opera tion with this setti ng cannot be can celled by the re mote control ler in the hydr o unit. Be sure to ca ncel the oper ation from t he outdoor uni t. (Press a gain SW801 f or 1 second) Self-holdin g v alve vacu um operati on (Switch to heating cycle) ( RY700, RY701, RY705, CN701 for check) Sets relay RY7 ...

  • Toshiba HWS-1402XWHM3-E - page 128

    127 Toshiba 11 How to Exchange Main Parts 1. Hydro Unit WARNING <Turn off the pow er breaker> Because the electrical components are energized w ith high voltage, always turn off the po wer b reaker before starti ng to w ork. <Check> After a repair is complete, perform a trial operation (after attaching the front panel, upper and low er ...

  • Toshiba HWS-1402XWHM3-E - page 129

    128 Toshiba 2 Remote controll er 1.How to remove 1) Perform the s tep 1-1. 2) Remove the remote c ontroller from the holder using a flat-blade s crewdriver. ( Release the s topper.) 3) Disconnect the remote cont roller cabl e from the terminal bloc k on the back s ide of the remote controller . 2.How to attac h 1) Attach it in the rev erse order of ...

  • Toshiba HWS-1402XWHM3-E - page 130

    129 Toshiba 4 Relay board MCC-1431 1. How to remove 1) Perform the s tep 1-1. 2) Disconnect the connector s and lead cables connected to other parts fr om the relay board. 1. Connector CN01: TB 01 3P T erminal bloc k (3P: White) CN02: Water heat exchanger board (5P: White) CN10: TB 05 9P T erminal bloc k (9P: White) Note When removing the con necto ...

  • Toshiba HWS-1402XWHM3-E - page 131

    130 Toshiba 6 Side board 1. Side board ( Right) 1) Perform the s tep 1-1. 2) Remove the fixed scr ews of the side board (R ight). (ST1T Ø4 × 10 , 5 screw s) 3) Remove the fixed scr ews of the side board (R ight) and the manometer fixi ng board. (ST1 T Ø4 × 10, 2 screws) 2. Side board (Left ) 1) Remove the fixed scr ews of the side board (L eft) ...

  • Toshiba HWS-1402XWHM3-E - page 132

    131 Toshiba 9 Expansion ves sel 1) Perform the step 1-1 , step 5, 6, and 7. 2) Remove the fixed band of the exp ansion vess el. (ST1T Ø4 × 8, 4 screw s) 3) Remove the expansion v essel conn ection (thr ee- piece flare nut ). Replace the pac king to new one when installing the expansion ves sel. 10 Relief valv e 1) Perform the step 1-1 , step 5, 6 ...

  • Toshiba HWS-1402XWHM3-E - page 133

    132 Toshiba 12 Pump 1. How to remove 1) Perform the step 1-1 , step 5, 6, and 10. 2) Remove the fixed scr ews of the pump fixing board. (ST1T Ø4 × 8, 2 screw s) 3) Remove the 2 nuts of t he heater connec tion and the lower side of the pump. 4) Remove the pump fixing boar d. (ST3T Ø6 × 16 , 2 screw s) 5) Remove the nut of the upper par t of the ...

  • Toshiba HWS-1402XWHM3-E - page 134

    133 Toshiba 13 Flow switch 1. How to remove 1) Perform the step 1-1 and step 5. 2) Remove the flow switch. 2. How to attach 1) Attach a new flow sw itch i n the reve rse order of the removal. Note1) As shown on the right, place a flow sensor parallel to th e w ater heat exchanger in let pipe so that the w ire is pla ce on the right si de from the f ...

  • Toshiba HWS-1402XWHM3-E - page 135

    134 Toshiba 15 Heater ass embly 1. How to remove 1) Perform the step 1-1 , step 5, 6, 7, and 11. 2) Remove the nut of the heater connection . 3) Remove the 2 fixed scr ews of the heater. 4) Pull the heater out upward. 5) Remove the insulato r from the heater. 2. How to attach 1) Attach a new heater in the rever se order of the removal. 16 TC sensor ...

  • Toshiba HWS-1402XWHM3-E - page 136

    135 Toshiba 17 Water heat exchanger ass embly 1. How to remove 1) Perform the step 1-1 , step 5, 6, and 8. 2) Remove the water pipe fixing board . (ST2T Ø4 × 8, 2 screw s) 3) Remove the refriger ant piping fixin g board. (ST2T Ø4 × 8, 3 screw s) 4) Remove the nut of the heater connection . 5) Remove the fixed scr ews of the electric parts box f ...

  • Toshiba HWS-1402XWHM3-E - page 137

    136 Toshiba 2. Outdoor Unit 2-1. HWS-802H-E No. Exchange parts name Work procedure Re marks 1 Common procedure Note Wear gloves w hen per forming the w ork. Failure to do so may cause an injur y w hen accidental ly contacting the parts. 1. How to remove 1) Stop the operation by remote contr oller and turn off the breake r. 2) Remove the front panel ...

  • Toshiba HWS-1402XWHM3-E - page 138

    137 Toshiba 2 Outlet cabinet How to remove 1) Perform the s tep 1-1. 2) Remove the screws of the out let cabinet and parting boar d. (ST1T Ø4 × 8, 3 screw s) 3) Remove the screws of the out let cabinet and bottom board. (Hex Ø4 × 10, 2 sc rews) 4) Remove the screws of the out let cabinet and motor base . (ST1T Ø4 × 8, 2 screw s) 5) Remove the ...

  • Toshiba HWS-1402XWHM3-E - page 139

    138 Toshiba 4 Electri c parts replacement 1. Control board 1) Perform the s tep 1-1. WA RNING For 1 minute after the p ow er is turne d off, do not disassemble t he inverter to prevent an el ectric shock. 2) Remove the connect or connected to the control board. (Hydro power source, t emperature s ensor, elec tric control val ve coil, 4-w ay valve c ...

  • Toshiba HWS-1402XWHM3-E - page 140

    139 Toshiba 4 Electri c parts replacement 2. Reactor 1) Perform the s tep 1-1. 2) Remove the relay connector c onnected to the control bo ard. 3) Cut the binding t ie that binds the compr essor l eads and relay connectors . 4) Remove the reactor . (Truss B tight screw Ø4 × 6, 2 screws) 5) Attach a new reactor. Note) Be sure to bind the removed bi ...

  • Toshiba HWS-1402XWHM3-E - page 141

    140 Toshiba 5 Fan m otor 1) Perform the step 1-1 and step 2. 2) Remove the fan motor and the flang e nut that fixes the propelle r fan. • To loosen the flan ge nut, turn it c lockwise. (Turn it cou nterclockw ise for ti ghtening .) 3) Remove the propeller fan. 4) Remove the connect or for fan motor fr om the inverter. (control bo ard) 5) Remove t ...

  • Toshiba HWS-1402XWHM3-E - page 142

    141 Toshiba 6 Compresso r Compressor le ad 1. Remove defect ive compres sor 1) Perform refriger ant gas recov ery. 2) Perform the s tep 1-1 and s tep 2 and 3. 3) Remove the piping panel (F ront). Remove scr ews of the piping panel (Fr ont) and bottom board. (Hex Ø4 × 10, 2 sc rews) Remove scr ews of the piping panel (Fr ont and Back). (Hex Ø4 × ...

  • Toshiba HWS-1402XWHM3-E - page 143

    142 Toshiba 6 Compresso r Compressor le ad 10) Remove the dischar ge and suc tion pipes connected to the c ompressor by using a burner . WA RNING When removing th e piping by bur ning the sol der, take enough car e for a fire go ing off at th e moment the w ax melts if oil r emains insid e the piping. Note) Do not make fire fla me contact with the ...

  • Toshiba HWS-1402XWHM3-E - page 144

    143 Toshiba 6 Compresso r Compressor le ad 2. Attach the compress or 1) Attach the compr essor in the rever se order of the removal. Note) • Be sure to repl ace the compr essor le ad after the compress or replac ement. (Compr essor l ead spare parts code: 43160591) At this tim e, w ind the ferrite core wi th the compress or lead for 4 times. Bind ...

  • Toshiba HWS-1402XWHM3-E - page 145

    144 Toshiba 6 Compresso r Compressor le ad 3. Vacuuming 1) Connect the vacuu m pump to the charge por t of the gas pipi ng valve t o operate the v acuum pump. 2) Perform vacuumi ng until the vacuum low press ure gauge shows 1(mmHg). Note) Open fully the pulse motor v alve before vacuuming. Wi th the valve c losed, vac uuming between the outdoor u n ...

  • Toshiba HWS-1402XWHM3-E - page 146

    145 Toshiba 8 Fan guard 1. How to remove 1) Perform the s tep 1-1 and s tep 2. Note Perform a r eplacement w ork on cardboard or cloth to pr event the product f rom being damaged. 2) Remove the outlet cabi net and put with the fan guard side down. 3) Release the hook s (8 pos itions) of the fan guard. 2. How to attach 1) Press the hooks (8 positio ...

  • Toshiba HWS-1402XWHM3-E - page 147

    146 Toshiba 2-2. HWS-1102H-E, 1402H-E No. Exchange parts name Work procedure Re marks 1 Common procedure Note Wear gloves w hen per forming the w ork. Failure to do so may cause an injur y w hen accidental ly contacting the parts. 1. How to remove 1) Stop the operation by remote contr oller and turn off the breake r. 2) Remove the front panel. (Hex ...

  • Toshiba HWS-1402XWHM3-E - page 148

    147 Toshiba 2 Outlet cabinet How to remove 1) Perform the s tep 1-1. 2) Remove the screws of the out let cabinet and parting boar d. (ST1T Ø4 × 8, 4 screw s) 3) Remove the screws of the out let cabinet and bottom board. (Hex Ø4 × 10, 2 sc rews) 4) Remove the screws of the out let cabinet and motor base . (ST1T Ø4 × 8, 2 screw s) 5) Remove the ...

  • Toshiba HWS-1402XWHM3-E - page 149

    148 Toshiba 4 Electri c parts replacement 1. Control board 1) Perform the s tep 1-1. WA RNING For 1 minute after the p ow er is turne d off, do not disassemble t he inverter to prevent an el ectric shock. 2) Remove the connect or connected to the control (Hydro power source, t emperature s ensor, elec tric control val ve coil, 4-w ay valve co il, c ...

  • Toshiba HWS-1402XWHM3-E - page 150

    149 Toshiba 4 Electri c parts replacement 2. Reactor 1) Perform the s tep 1-1. 2) Remove the react or lead conn ected to the control board. CN05 White, CN06 Whit e 3) Cut the binding t ie that binds the compr essor l eads and fan motor leads . 4) Remove the reactor . (Truss B tight screw Ø4 × 6, 2 screw) 5) Attach a new reactor. Note) Be sure to ...

  • Toshiba HWS-1402XWHM3-E - page 151

    150 Toshiba 5 Fan m otor 1) Perform the step 1-1 and step 2. 2) Remove the fan motor and the flang e nut that fixes the propelle r fan. • To loosen the flan ge nut, turn it c lockwise. (Turn it cou nterclockw ise for ti ghtening .) 3) Remove the propeller fan. 4) Remove the connect or for fan motor fr om the inverter. (control bo ard) (Remove the ...

  • Toshiba HWS-1402XWHM3-E - page 152

    151 Toshiba 6 Compresso r Compressor le ad 1. Remove defect ive compres sor 1) Perform refriger ant gas recov ery. 2) Perform the s tep 1-1 and s tep 3. 3) Remove the pi ping panel (Front ). Remove scr ews of the piping panel (Fr ont) and bottom board. (Hex Ø4 × 10, 2 sc rews) Remove scr ews of the piping panel (Fr ont and Back). (Hex Ø4 × 10, ...

  • Toshiba HWS-1402XWHM3-E - page 153

    152 Toshiba 6 Compresso r Compressor le ad 2. Attach the co mpressor 1) Attach the compr essor i n the rever se order of the removal. Note) • Be sure to repl ace the compr essor le ad after the compress or replac ement. (Compr essor l ead spare parts code: 43160591) At this tim e, w ind the ferrite core wi th the compress or lead for 4 times. • ...

  • Toshiba HWS-1402XWHM3-E - page 154

    153 Toshiba 7 Pulse m otor valve co il 1. How to r emove 1) Perform the s tep 1-1. 2) Remove the coil from t he pulse motor v alve body by pulling upward while rotating the coil. 2. How to atta ch 1) Fix the coil by exactly adjustin g the coil pos itioning project ion to the r ecess of the puls e motor v alve body. 8 Fan guard 1. How to remove 1) P ...

  • Toshiba HWS-1402XWHM3-E - page 155

    154 Toshiba 12 Periodic Inspection Items For a long-te rm safe operat ion of this equipment, pe rform perio dic inspec tion and part s replaceme nt. <Inspection items> Hydr o unit (HWS-802**-E, 1402**-E) Frequency Periodic inspection details 1. Ins ulation meas urement (Power sour ce circ uit/ Heat er circuit) Annually Insulat ion measurement ...

  • Toshiba HWS-1402XWHM3-E - page 156

    155 Toshiba 13 Part Exploded View, Part List Hydro Unit 201 203 208 202 219 236 218 209 210 211 213 203 214 215 206 216 207 212 204 205 217 +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 155 Monday , October 5, 2009 2:09 PM ...

  • Toshiba HWS-1402XWHM3-E - page 157

    156 Toshiba 220 223 235 234 222 225 226 231 232 229 228 235 233 230 221 224 227 +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 156 Monday , October 5, 2009 2:09 PM ...

  • Toshiba HWS-1402XWHM3-E - page 158

    157 Toshiba Safety Locatio n No. Part No. D escription Number of pieces per un it HWS- 1402XW HM3-E HWS- 1402XW HT6-E HWS- 1402XW HT9-E HWS- 802XWH M3-E HWS- 802XWH T6-E 201 37500802 CABINET, FRONT 11111 202 37500800 PLATE, UP 11111 203 37500801 PLATE, SIDE 22222 204 37500803 PLATE, DN, ASSY 11111 205 37566705 REMOTE CONTROLLER 1 1 1 1 1 206 375468 ...

  • Toshiba HWS-1402XWHM3-E - page 159

    158 Toshiba Outdoor Unit (HWS-802H-E) 021 016 015 023 022 029 020 024 013 019 005 030 028 031 032 026 017 004 003 006 027 025 034 008 007 035 010 009 011 033 002 001 014 018 012 +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 158 Monday , October 5, 2009 2:09 PM ...

  • Toshiba HWS-1402XWHM3-E - page 160

    159 Toshiba Safety Locatio n No. Part No. D escription Number of pieces per un it HWS-802H-E 001 43019904 HOLDER, SENSOR 1 002 43032441 NIPPLE, DRAIN 1 003 43041798 COMPRESSOR, DA220A2F-22L 1 004 43046493 COIL, PMV 1 005 43046451 VALVE, 4-WAY, STF-0218G 1 006 43047246 BONNET, 3/8 IN 1 007 43047669 NUT, FLANGE 1 008 43049739 CUSHION, RUBBER 3 009 43 ...

  • Toshiba HWS-1402XWHM3-E - page 161

    160 Toshiba Inverter Assembly (HWS-802H-E ) 1 1 2 2 3 3 R R S S T T 703 Sensor assembly (F4) TD, TL sensor TS, TE, TD sensor 705 707 T erminal (3P) Fuse 706 T erminal 3P 708 Sensor holder (TO) 702 Sensor holder (TE) 712 Sensor holder (TS) 713 Sensor holder (TD) 711 Control board assembly 704 Reactor 710 Collar 709 Bushing 701 Sensor assembly (F6) + ...

  • Toshiba HWS-1402XWHM3-E - page 162

    161 Toshiba Safety Locatio n No. Part No. D escription Number of pie ces per unit HWS-802H-E 701 43050425 SENSOR ASSY, SERVICE 3 702 43063325 HOLDER, SENSOR 1 703 43150319 SENSOR ASSY, SERVICE 2 704 43155188 REACTOR, CH-56-2Z-T 2 705 43160565 TERMINAL BLOCK, 3P, 20A 1 706 43160581 TERMINAL 1 707 43160589 FUSE 1 708 43163055 HOLDER, SENSOR 1 709 431 ...

  • Toshiba HWS-1402XWHM3-E - page 163

    162 Toshiba Outdoor Unit (HWS-1102H-E, 1402H-E) 020 015 021 022 029 030 017 013 018 028 026 032 019 014 011 031 024 034 035 001 002 033 027 037 004 003 016 025 006 009 008 005 010 012 007 036 023 +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 162 Monday , October 5, 2009 2:09 PM ...

  • Toshiba HWS-1402XWHM3-E - page 164

    163 Toshiba Safety Locatio n No. Part No. D escription Number of pieces per un it HWS-1102H-E HWS-1402H-E 001 43019904 HOLDER, SENSOR 3 3 002 43032441 NIPPLE, DRAIN 1 1 003 43041794 COMPRESSOR, DA422A3F-25M 1 1 004 43047246 BONNET, 3/8 IN 1 1 005 43047669 NUT, FLANGE 2 2 006 43049739 CUSHION, RUBBER 3 3 007 43050407 THERMOSTAT,BIMETAL 1 1 008 43063 ...

  • Toshiba HWS-1402XWHM3-E - page 165

    164 Toshiba Inverter Assembly (HWS-1102H-E, 1402H-E) 1 1 2 2 3 3 R R S S T T 703 Sensor assembly (F4) 705 707 T erminal (3P) Fuse 706 T erminal 3P 708 Sensor holder (TO) 702 Sensor holder (TE) 711 Control board assembly Reactor 710 Collar 709 Bushing 701 Sensor assembly (F6) TD, TL sensor TS, TE, TO sensor 704 +00A09-002_01EN_SVM_ALL_ Air_to_Water. ...

  • Toshiba HWS-1402XWHM3-E - page 166

    165 Toshiba Safety Locatio n No. Part No. D escription Number of pieces per un it HWS-1102H-E HWS-1402H-E 701 43050425 SENSOR ASSY, SERVICE 3 3 702 43063325 HOLDER, SENSOR 1 1 703 43150319 SENSOR ASSY, SERVICE 2 2 704 43158190 REACTOR 2 2 705 43160565 TERMINAL BLOCK, 3P, 20A 1 1 706 43160581 TERMINAL 1 1 707 43160589 FUSE 1 1 708 43163055 HOLDER, S ...

  • Toshiba HWS-1402XWHM3-E - page 167

    166 Toshiba +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 166 Monday , October 5, 2009 2:09 PM ...

  • Toshiba HWS-1402XWHM3-E - page 168

    Toshiba +00A09-002_01EN_SVM_ALL_ Air_to_Water.book Page 167 Monday , October 5, 2009 2:09 PM ...

Manufacturer Toshiba Category Heat Pump

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