Toshiba HWS-P1105HR-E Service Manual Download Page 89

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[A09] Error Overheat prevention thermostat failure (Hot water supply / Heating operation)

Put water into water circuit

(Recommended: 1 - 2 Bar)

Replace heater unit

exchanger air vent valve

Replace flow switch

Water cycle contains water

Yes

Flow switch is normal

Yes

At normal temperature,

overheat preventive thermostat

is normal

Yes

Start

Replace water heat exchange control board

or overheat preventive thermostat failure

*Replace water heat exchange control board or overheat preventive thermostat failure: After the control
board is replaced, if the same operation repeats, the overheat preventive thermostat is determined as
defective (does not operate at 75 °C).

Summary of Contents for HWS-P1105HR-E

Page 1: ...r unit HWS P805HR E TR HWS P1105HR E TR AIR TO WATER HEAT PUMP Hydro unit HWS P805XWHM3 E TR HWS P805XWHT6 E TR HWS P805XWHT9 E HWS P1105XWHM3 E TR HWS P1105XWHT6 E TR HWS P1105XWHT9 E TR Service Manual FILE No A10 1705 ...

Page 2: ...lux 13 2 5 3 Brazing 13 3 Specifications 15 4 Outside drawing 17 4 1 Hydro unit 17 4 2 Outdoor unit 18 4 3 Hot water cylinder 19 5 Wiring diagram 20 5 1 Hydro unit 20 5 2 Outdoor unit 21 5 3 Hot water cylinder unit 22 6 Key electric component rating 23 6 1 Hydro unit 23 6 2 Outdoor unit 25 6 3 Hot water cylinder unit 25 6 4 Water heat exchange control board 26 6 5 Outdoor control board 27 7 Refrig...

Page 3: ...ler 73 9 3 3 How to cancel a check code on the remote controller 73 9 3 4 How to diagnose by error code 74 9 4 Diagnosis flow chart for each error code 82 9 4 1 Hydro unit failure detection 82 9 4 2 Outdoor unit failure detection 101 9 4 3 Temperature sensor temperature resistance characteristic table 113 9 5 Operation check by PC board switch 114 9 5 1 Operation check mode 114 9 6 Brief method fo...

Page 4: ... and warning Specific cautions are described in picture or text inside or near the symbol DANGER Turn off the power breaker Turn off the power breaker before removing the front panel and cabinet Failure to do so may cause a high voltage electric shock leading to death or injury During an operation the second side circuit of high pressure transmission are applied with a high voltage of 230 V or hig...

Page 5: ...R410A Also never use R410A for Air to Water Heat Pump using other refrigerant such as R22 A mixture of R410A with different ones excessively raises the pressure in the refrigerant cycle leading to an injury due to burst Do not make additional charge of the refrigerant An additional charge when refrigerant gas leaks changes the refrigerant composition in the refrigerant cycle causing the characteri...

Page 6: ...ne is harmless if it catches fire of a fan heater a space heater or a stove poisonous gases may be produced When installing the unit or re installing it after relocation follow the installation guide for proper operation A defective installation may cause a refrigerant cycle defective a water leak an electric shock or a fire Check after repair After a repair is completed check for any abnormality ...

Page 7: ...the conventional R22 to prevent incorrect filling Ventilate if refrigerant gas leaks during service work Should refrigerant gas catch fire poisonous gases may be produced A closed room full of leaking refrigerant results in the absence of oxygen it is dangerous Make sure to ventilate When the refrigerant cycle is refilled with refrigerant do not mix air or refrigerants other than the specified ref...

Page 8: ...hickness of copper pipe used for R410A Never use commercially available thin walled copper pipe of 0 8 mm thick or less Table 2 1 Wall thickness of copper pipe Joints For the joint of copper pipe flared joint and socket joint are used Remove impurities from a joint before using it Flared joint A flared joint cannot be used for the copper pipe whose outer diameter is 20 mm or larger A socket joint ...

Page 9: ... clasps and copper pipe are clean Flare correctly using the clasp Use a flare tool for R410A or the conventional one Flare processing dimension varies depending on the flare tool type When using the conventional flare tool use a gauge for size adjustment to secure the A dimension Table 2 2 3 Flare processing related dimension for R410A Table 2 2 4 Dimension of flare for R410A and flare nut Figure ...

Page 10: ... may occur If it is too strong the flare nut may crack and may be made non removable When choosing the tightening toque comply with values designated by products Table 2 2 5 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the product Using any other oil deteriorates the lubricating oil possibly causing the compressor to burn out Table 2 2 5 Tight...

Page 11: ... General tools Conventional tools are available In addition to the above dedicated tools the following equipment also available for R22 is necessary as the general tools Also prepare the following equipment for other work methods or run check No Tool to be used Usage R410A Air to Water Hear Pump installation Conventionalrefrigerant Air to Water Heat Pump installation For R410A Existenceofnew equip...

Page 12: ...over the refrigerant and check that no refrigerant remains in the refrigerant cycle Connect the charge hose to packed valve service port on the outdoor unit s gas side Connect the charge hose to the vacuum pump adapter Open fully both packed valves on the liquid and gas sides Open fully the handle of gauge manifold Lo turn on the vacuum pump and then perform vacuum evacuating When the compound gau...

Page 13: ...d upside down NOTE Because R410A is HFC mixed refrigerant charging with gas changes the charged refrigerant composition causing the equipment characteristics to change Cylinder with siphon Cylinder without siphon Gauge manifold Outdoor unit Refrigerant cylinder Electronic balance Gauge manifold Outdoor unit Refrigerant cylinder Electronic balance Siphon pipe ...

Page 14: ...te type of flux according to metal treatment type brazing metal and brazing method or other conditions Type of flux Non corrosive flux It is generally a compound of borax and boric acid It is effective when brazing temperature is higher than 800 C Active solvent Most of this type of flux is generally used for silver brazing It features the increase of oxide film while moving the capability to the ...

Page 15: ...keep the nitrogen gas flowing until the pipe cools down to a certain extent Temperature where the pipe is cool enough to be touched by hands 7 Remove the flux completely after brazing Fig 2 5 1 Prevention of oxidation during brazing M Flow meter Stop valve From nitrogen cylinder Nitrogen gas Robber plug Pipe Nitrogen gas cylinder ...

Page 16: ...76 3 66 Hydro unit Outer dimension Height mm 925 Width mm 525 Depth mm 355 Net weight kg 49 Color Silky shade Munsell 1Y8 5 0 5 Remote controller Outer dimension 3 Height mm 120 Width mm 120 Depth mm 16 Circulation pump Motor output W 125 MAX Flow rate L min 22 9 17 2 Type Non self suction centrifugal pump Heat exchanger Plate type heat exchange Outdoor unit Outer dimension Height mm 1340 Width mm...

Page 17: ...3 00 Hydro unit Outer dimension Height mm 925 Width mm 525 Depth mm 355 Net weight kg 52 Color Silky shade Munsell 1Y8 5 0 5 Remote controller Outer dimension 3 Height mm 120 Width mm 120 Depth mm 16 Circulation pump Motor output W 190 MAX Flow rate L min 32 1 28 9 Type Non self suction centrifugal pump Heat exchanger Plate type heat exchange Outdoor unit Outer dimension Height mm 1340 Width mm 90...

Page 18: ... 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 controller 135 5 158 186 5 59 5 144 5 116 19 5 352 37 5 920 54 Hot water outlet connecting pipe 1 1 4 Water inlet connecting pipe 1 1 4 Gas line dia 15 88 Liquid line dia 9 52 309 5 259 Drain nipple 371 5 355 40 40 9 Anchor bolt long hole pitch Manometer 525 19 5 ...

Page 19: ... 534 85 Z 43 5 5 Drain hole 20 88 burring hole Air intake Air intake Air discharge Portion A Portion B Drain hole 25 burring hole Mounting bolt hole 12 17 long hole Details of portion A Details of portion B Mounting bolt hole 12 17 U shape hole Description Name Refrigerant piping outlet Hydro and outdoor connecting line outlet Power source intake hole 38 knockout hole Refrigerant liquid connection...

Page 20: ...ot water cylinder 550 595 2066 6 2040 550 595 1114 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 1501CSHM3 E UK ...

Page 21: ...1 2 3 2 1 1 3 4 5 5 6 9 7 8 7 9 RED WHI WHI BLU BRW YEL YEL GRN BLU CN10 WHI RY 10 CR10 CR11 CR12 CR13 RY 11 RY 12 RY 13 1 6D 6C 6B 6A A B 7B 7A Type 1 3 wire SPDT type Type 1 2 wire spring return Type 2 3 wire SPST type Type 2 3 wire SPST type Type 3 3 wire SPDT type 2 4 3 2 3 4 2 4 3 2 1 3 4 See DIP SW13_1 YEL GRN BRW BLU BLK Power supply 220 230V 50Hz or 380 400V 50Hz Symbol WPM Water pump moto...

Page 22: ...Filter 63H High pressure switch SW802 CN600 White CN710 White CN704 Blue CN701 White SW803 CN601 White CN602 Yellow CN603 White CN604 White RY704 CN04 White CN609 Blue SW800 CN610 Yellow SW804 SW801 CN300 White Fuse F01 T25 A 250 V CN202 CN201 CN200 P07 P06 L F Black Red White Red White Black P C board MCC 1571 Fuse F03 T10 A 250 V White White Gray Gray P04 P05 Power Supply 220 230 V 50 Hz Earth s...

Page 23: ...r cylinder unit 1 2 TB03 230 V A B TB06 TTW Supply 220 230 V from hydro unit Cable size 1 5 mm2 minimum To hydro unit Green Yellow Blue Double pole thermal cut out Blue Brown Brown TTW sensor Hot water cylinder heater ...

Page 24: ...nsor TFI sensor O O O 10 kΩ 25 C 10 Low pressure sensor O O O Operating pressure 0 20 MPa 11 Bimetal thermostat auto O O O Operating temperature 75 3 C DC12 V 0 2 A 12 Bimetal thermostat single operation O O O Operating temperature 95 5 C AC250 V 16 A 13 Flow switch O O O Operating flowing quantity 13 min 14 Output board OP OP OP OP TCB PCIN3E AC230 V 0 5 A DC24 V 1 A 15 Input board OP OP OP OP TC...

Page 25: ...0 kΩ 25 C 10 Low pressure sensor O O O Operating pressure 0 20 MPa 11 Thermal protector auto O O O Operating temperature 75 3 C DC42 V 0 2 A 12 Thermal protector single operation O O O Operating temperature 95 5 C AC250 V 16 A 13 Flow switch O O O Operating flowing quantity 18 L min 14 Output board OP OP OP OP TCB PCIN3E AC230 V 0 5 A DC24 V 1 A 15 Input board OP OP OP OP TCB PCM03E Contact input ...

Page 26: ... DC12 V 6 Compressor case thermostat US 622KXTMQO SS OFF 125 4 C ON 90 5 C 7 PC board MCC 1571 Input 1Ø AC220 230 V 10 50 60 Hz 8 High pressure sensor NSK BH042D 430 0 4 15 MPa 9 2 way valve coil VPV MOAJ510B0 AC220 240 V 10 High pressure switch ACB 4UB154W OFF 4 15 0 0 15 MPa No Component name Model name Type name Rating 1501 CSH M3 E UK 2101 CSH M3 E UK 3001 CSH M3 E UK 1 Hot water cylinder heat...

Page 27: ...N102 Flow switch connector CN200 Overheat protection thermostat input connector CN202 TWO sensor connector CN205 TWI sensor connector CN204 THO sensor connector CN206 TTW sensor connector CN214 Low pressure sensor connector CN207 CN212 Remote controller connector CN41 TC sensor connector CN203 TFI sensor connector CN213 Backup heater 1 drive connector CN605 Mixing valve drive connector CN604 Hot w...

Page 28: ...3 PMV connector CN710 White PD sensor CN606 Red 2 way valve CN702 White Initialization switch SW802 4 way valve protection fuse F700 250 V 3 15 A plastic case Power supply protection fuses F01 250 V 25 A Earth lead wire P09 Black Connecting cable connector CN04 White Connecting cable protection fuse F03 250 V 10 A Electrolytic capacitors Compressor output terminals CN202 CN201 CN200 Power supply c...

Page 29: ...cured AC230 V Safety valve set 3 5bar Boiler local Drain cock for water charge locally procured Cylinder heater Ø1 2 7 kW Relief valve UK 90 C 10 bar Water outlet Water inlet Reducing valve UK 3 5 bar Pressure relief Set value 7 bar UK Water heat exchanger max 10bar Backup heater Ø1 3 kW Ø3 6 kW Ø3 9 kW Flow sw Thermal protector auto set 75 3 C Thermal protector Single operation set 95 5 C Low pre...

Page 30: ...quires18 min P805XWH 13 min or more This water flowing requires 5 or more branches of Floor heating or Radiator etc Less than 5 branches may cause a flow deficiency In this case please provide a buffer tank and secondary pumps as shown in 4 Please check how to install the boiler See page 40 1 2 3 4 5 6 ...

Page 31: ...unit TS TD Accumulator PMV TO Flow switch Plate type water heat exchanger Air vent valve Manometer P Expansion vessel High pressure sensor PD High pressure switch TE Low pressure sensor TWO Water vent valve Backup heater TWI Circulation pump THO TL 4 way valve TC Hydro unit Outdoor heat exchanger Compressor 2 way valve Heating Hot water supply Defrosting Cooling Safety valve ...

Page 32: ...perature release low temperature release 2 Heater control 3 Circulation pump control 4 Control by the flow switch 5 Mixing Valve control 2 temperature heating control 6 Room temperature control 7 Room temperature control with the thermostat 8 Hot water cylinder thermostat control 9 Control of force stop and restart 10 Control of limit of heat pump operation 11 Output signal control 1 12 Output sig...

Page 33: ...ive Remote controller settings Heating Temperature setting Hot water supply Temperature setting Cooling Temperature setting Auto Temp Anti bacteria Frost protection Hot water boost Water heat exchange Sub board Outdoor unit control Serial signals transmit and receive Outdoor unit control Inverter frequency control Waveform synthesis function Calculation function Temperature calculation AD conversi...

Page 34: ...e outdoor unit 2 The hydro unit performs the operation controls shown on the left while also controlling the circulation pump backup booster heater ON OFF water 2 way valve and water 3 way valve 3 The outdoor unit controls the compressor outdoor fan motor electric expansion valve and 4 way valve based on the operation signals transmitted by the hydro unit Item Operation flow and applicable data et...

Page 35: ... the circulation pump water 2 way valve and water 3 way valve 3 The outdoor unit controls the compressor outdoor fan motor pulse motor valve and 4 way valve based on the operation signals transmitted by the hydro unit Item Operation flow and applicable data etc Operation description Hydro unit control Circulation pump ON OFF control Water 3 way valve control Water 2 way valve control Cooling tempe...

Page 36: ...WH E 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 To Water temperature at inlet TWI Cooling operation range Heat pump operation range of hot water supply and heating With the exception of TO 25 C or higher for heating Heater operation Heat pump operation r...

Page 37: ...elated FC 3 When the outside temperature is 0 C or below the boil up temperature will be higher that setting temperature in hot water supply mode Item Operation flow and applicable data etc Operation mode Controlled object Cooling only Heating only Hot water supply only Heating and Hot water both operate Cooling and Hot water both operate Heat pump select for heating Heat pump select for hot water...

Page 38: ...mp operation selection 1 2 When TWI TSC_F d zone in the right figure is met the heat pump operation is selected Thermostat status OFF When TWI TSC_F e zone in the right figure is met the thermostat status OFF is selected 3 Operation stop condition When the following condition is met the heating operation stops The remote controller gives a stop instruction 1 When the outside temperature is 25 C or...

Page 39: ...pply of hot water for up to 30 minutes during a simultaneous operation g zone Operation with heating priority A heat pump operation is performed in the heating side and a cylinder heater operation in the hot water supply side Operation mode by zone 2 Note that after a heat pump operation for Hot water supply is selected in f zone when the operation moves to a heater operation for hot water and the...

Page 40: ...ot water supply is permitted Under the setting the heat pump runs for the hot water supply side when TTW is less than 38 C The operation mode returns to normal when TTW become 45 C or more FC variable Related FC Item Operation flow and applicable data etc FC No Setting item Default Setting available range 22 Priority mode switch temperature 0 C 20 20 C Hot water supply side Cooling side Normal Hea...

Page 41: ...C_3E is set to 1 the boiler continues to run even after temperature reaches the hydro unit s temperature setting The setting of FC_3E is effective during the HP Boiler operation Coordination setting of the boiler and heat pump when FC_5B 0 the boiler and heat pump runs simultaneously When FC_5B 1 only the boiler runs pump ON However if the external air temperature becomes the boiler HP switching t...

Page 42: ...perature control by boiler with P1 OFF is required DPSW10_3 OFF Item Operation flow and applicable data etc E 10 I zone J zone Heat pump operation Heat pump boiler operation TO Diff 5K Boiler position DPSW02_1 FC62 Activate deactivate A02 error detection Temperature range in which the boiler signal is output Detected temperature of TWI TWO or THO OFF After 3 way valve heating side 0 TWI or TWO or ...

Page 43: ...ed for changing the set temperature during a Hot water boost operation Change the BOOST set temperature with FC_09 if necessary Related FC Item Operation flow and applicable data etc FC No Setting item Default Variable range 23 Boiler heat pump switching temperature 10 C 20 20 C 3E Control priority between the hydro unit and boiler Control valid for operating heat pump mode 0 Hydro unit control In...

Page 44: ... supply start condition TTW 38 C and forcibly performs a hot water operation During Anti bacteria operation Forcible hot water operation at 75 C the hot water set temperature display is not changed If it is changed from the remote controller the normal hot water set temperature will be changed Related FC Item Operation flow and applicable data etc Anti bacteria button set to ON Anti bacteria start...

Page 45: ...eration 2 Automatic stop of Frost protection operation The operation period of Frost protection can be set at FC 12 and 13 on the remote controller Longest period available 20 days and 23 hours By entering the operation period day and hour at FC 12 and 13 on the remote controller and pressing the Frost protection button the operation period is set and the Frost protection operation will automatica...

Page 46: ... two methods FC_A2 One is a percentage of ZONE1 the other is a fixed value FC_A2 0 Percentage method that is set by FC_31 FC_A2 1 Fixed value method that is set by FC_A3 A4 and A5 However it is automatically controlled the set temperature of ZONE1 to be the ZONE2 or more Item Operation flow and applicable data etc TSC_F C A 40 B 35 C 30 D 25 E 20 T0 20 T2 0 20 TO T1 10 T3 10 5K adjustable FC 27 C ...

Page 47: ...ler set temperature 1 1 Compressor control Calculates the different between the remote controller set temperature TSC_H TSC_F and the water outlet temperature Hot water supply THO Heating TWO Sets the Hz signal correction amount that determines the number of compressor rotations by the temperature difference Detects the number of compressor rotations Compares the Hz signal correction amount and th...

Page 48: ...ation as shown in the table below according to the calculated values of TC and TWO If TC TWO falls below 15 for a total of 10 times the compressor stops abnormally and fault code A10 is displayed on the remote controller When cooling operation has lasted normally for 10 minutes the abnormality detection counter is reset to 0 Item Operation flow and applicable data etc T7 Forcible stop O down P slo...

Page 49: ...perature TSC_F and the heater outlet temperature THO When the heating set temperature TSC_F is reached the hydro stops energizing the backup heater 1 HWS M3 E model has the backup heater 1 of 3 kW only 2 HWS T6 E model has the backup heater 2 of 3 kW Total 6 kW Restriction of backup heater energization during heating mode For energy saving When outdoor temperature is higher than the reference valv...

Page 50: ...ter is energized β can be changed for energy saving Defrosting ends according to the usual heater control Related FC 2 4 Forcible heater energization To prevent freeze the unit energizes or stops energizing a backup heater 3 kW regardless of the unit status not operated or in operation Object to be controlled Backup heater 1 Energization start condition TWO 4 or TWI 4 or THO 4 2 Energization stop ...

Page 51: ...n pump P1 during the heating operation using DP_SW10 2 DP_SW10 2 OFF Default The pump is always energized DP_SW10 2 ON The pump stops when To 20 C Practically the HP for heating is turned off 3 4 Synchronized external circulation pump P2 Pump type DC motor rated voltage 220 230 V connectable directly up to 200W rated power output You can select whether the pump P2 is synchronized with the pump P1 ...

Page 52: ...higher than the Boiler heat pump switching temperature Because when To is lower than the Boiler heat pump switching temperature the boiler output is ON state But if the pump stops due to the intermittent operation the boiler output is also turned OFF Related FC Item Operation flow and applicable data etc FC No Setting item Default Setting value 5A Control of the pump P1 during the hot water supply...

Page 53: ...FF Related FC 6 Room temperature control You can install a sub remote controller separately purchased in a room to control room temperature 6 1 Installing the sub remote controller Wiring with the main unit See the figure on the right After detaching the front panel connect the sub remote controller to the right terminal on the main remote controller which is connected with the hydro unit No polar...

Page 54: ...ontrol Heating Cooling D zone Setting is corrected upward Water temperature setting is up by 1deg every 30 minutes Setting is corrected upward Water temperature setting is down by 1deg every 30 minutes C zone No correction No correction B zone Setting is corrected downward Water temperature setting is down by 1deg every 30 minutes Setting is corrected downward Water temperature setting is down by ...

Page 55: ...eat pump shifts to the thermostat off operation 7 4 Cooling thermostat operation When the cooling thermostat does not reach the assigned temperature the circuit between 2 and 3 is open cooling starts under the setting that water temperature fro cooling is 20 C FC_96 If the cooling thermostat has not reached the assigned temperature 30 minutes after cooling had started the water temperature setting...

Page 56: ...d however that the hot water heat pump might stop if the water input temperature becomes high 8 4 Hot water thermostat operation hot water supply heating operation If hot water is used when the hot water thermostat is at the assigned temperature the circuit between 1 and 2 is open the hot water heat pump starts with the hot water thermostat closed In 30 minutes the hot water heat pump stops After ...

Page 57: ... was stopped with an external input the new status is reflected to the setting on the remote controller FC61 2 Hot water supply only FC61 3 Heating only It is possible to control each of the heating and hot water supply with the following settings FCB6 1 Default 0 and FC61 3 and DP_SW02_3 OFF Default OFF The terminals 1 and 3 is the heating control The terminals 2 and 3 is the hot water supply con...

Page 58: ... 1 There are 4 operation combination pattern for Heating Hot water When pulse signal is input the operation status change to the next status For example if current operation status is heating ON and hot water OFF then next status to be heating OFF hot water OFF when pulse is input Hydro unit memorize the status of the operation pattern before changing OFF status by pulse signal If pulse is input a...

Page 59: ...ting operation continues at least 30 minutes 4 The LED on the PC board lights up when the input signal is ON 11 Output signal control 1 TCB PCIN3E optional PC board is required Connect its connection cable to the CN208 terminal on the PC board in the hydro unit The circuit between the terminals 1 and 2 gets closed as an error detection signal is output The circuit between the terminals 3 and 4 get...

Page 60: ...ad m Minimum flow rate Hydraulic heat exchanger 8 kW QH characteristics 0 5 10 15 20 25 30 35 0 1 2 3 4 5 6 7 8 9 10 Pump duty 80 Pump duty 100 Pump duty 60 Hydro unit QH Characteristics 220 230 V Out of range Minimum flow rate Hydraulic heat exchanger 11 kW QH characteristics Head m 0 1 2 3 4 5 6 7 8 9 10 0 10 20 30 40 50 Flow rate L min Pump duty 100 Pump duty 80 Pump duty 60 Hydro unit QH Chara...

Page 61: ...ntion control start temperature the unit operate the circulation pump During a freeze prevention operation a heat pump operation does not start When neither Hot water supply nor heating cooling is in operation if the end condition is not met when 3 minutes has passed after an operation starts the unit performs the operation in 3 2 to prevent freeze 3 2 How to operate circulation pump backup heater...

Page 62: ...tes At the next time of defrosting the start condition is not met Defrosting operation for heating or hot water supply 3 Error display If freeze determination cancellation condition is not met A08 error is displayed 16 High return water protect control The hydro unit protects against high return water which made by separate boiler system When A02 error appeared the built in circulation pump will s...

Page 63: ...t is repaired first check that the resistance of each sensor or the refrigerant cycle has no problem then start the operation 2 Discharge temperature release control This control detects an abnormality of the refrigerant cycle or compressor to perform failure prevention This control reduces operation frequency if the PMV control does not lower the outlet temperature or if the outlet temperature ra...

Page 64: ...umber instructed by the hydro unit within the specified value range Heating Hot water supply Cooling No cooling operation available for TO 10 C Item Operation flow and applicable data etc Outdoor unit current inverter Main circuit control current Compressor operation Hz down Outside air temperature TO Current release point setting Capacity control continue Operation current Settings Current degrad...

Page 65: ...taps For 60 seconds after the start the maximum fan tap for each zone that is shown in the following table is fixed After that the fan is controlled according to the TG TG temperature converted from PD HWS P805HR E P1105HR E Item Operation flow and applicable data etc Temperature range P805HR E P1105HR E 50 C TO 14 1 45 C TO 50 C 14 1 39 C TO 45 C 14 1 TO 39 C 14 1 TO error 14 1 W1 W2 W3 W4 W5 W6 ...

Page 66: ... 150 seconds This intermittent running is not abnormal NOTE If the heat pump was thermo off the out door fan motor up down continue to run 10 min with W3 rotation When the water pump of hydro unit turns on the fan motor will operate sensing value of outside air temperature TO Item Operation flow and applicable data etc TE C 24 21 18 15 1 tap 20 secs to W1 2 tap 20 secs to W1 2 tap 20 secs to W1 St...

Page 67: ...ven if the TE sensor temperature is below 7 C the defrosting ends 3 After the defrosting stop the compressor for approx 40 seconds before starting a heating operation 4 Switching the jumper J805 and J806 of the outdoor control board can change the time of d above mentioned Factory default 150 minutes Item Operation flow and applicable data etc Heating operation starts 2 5 10 23 TE C 0 10 15 39 45 ...

Page 68: ...off during defrosting preliminary operation When defrosting preliminary operation is carried out more than 10 minutes 3 Control details Target SH during defrosting preliminary operation will be 6 to 10 K refer to 8 4 1 See page 62 PMV control interval will be shorter than normal Operation frequency will be fixed 1 When TD 50 C Advance defrosting will be skipped Item Operation flow and applicable d...

Page 69: ...ol 1 In 11 minutes after the operation start the compressor may not stop for protection This status is not abnormal The operation duration time of the compressor varies depending on a operation status 2 If the operation stops with the remote controller the operation does not continue 9 Over current protection control 1 A detection of abnormal current with the over current protection control stops ...

Page 70: ... about an check code displayed see the check code list See page 74 11 Compressor case thermostat The compressor case thermostat functions to protect the compressor when the blow out temperature from the compressor is too high The compressor case thermostat on the upper part of compressor stops the compressor The compressor will restart three minutes after stopping If the compressor case thermostat...

Page 71: ...pressor rotational speed is increasing Pd Y zone and To C zone When the compressor is stopped Defrosting When the compressor is stopped Cooling Any of the following cases Compressor rotational speed is increasing and The hydro unit is not operating release control When the compressor rotational speed is increasing 14 Start up from hibernation This control operates at startup in order to warm up th...

Page 72: ...program operation Non defective program operations for the protection of the heat pump unit 9 3 Outline of the determination diagram 9 3 1 Procedure of defect diagnosis 9 3 2 How to determine from the check code on the remote controller 9 3 3 How to cancel a check code on the remote controller 9 3 4 How to diagnose by error code With reference to the check code roughly identify the defect from the...

Page 73: ...peration please confirm whether it falls under any of the contents in the following table If it does please understand that the symptom is not a defect of the equipment and it is an operation necessary for the control and maintenance of the heat pump unit Table 9 2 1 Non defective operation No Operation of the heat pump system Explanation 1 The compressor sometimes does not operate even within the...

Page 74: ...cement etc please perform a repair If its abnormality is determined the abnormality is noticed by indicating the check code on the remote controller check code display part while sounding off a buzzer 9 3 3 How to cancel a check code on the remote controller Press or button on the operation side to clear the check code Although the above procedure cancels the check code the hardware error will be ...

Page 75: ...flow switch 2 82 A02 Temperature increase error heating When one of the TWI TWO and THO sensors exceeds 70 C Heating Hot water O O 1 Check the water inlet water outlet and heater outlet TWI TWO THO sensors 2 Defect of the backup heater defect automatic reset thermostat 1 83 A03 Temperature increase error hot water supply When the TTW sensor exceeds 85 C Heating O Hot water O 1 Check the hot water ...

Page 76: ...oling Hot water O 1 Almost no water flow 2 Defect of the flow switch 3 Check the water outlet temperature sensor TWO 10 90 A12 Heating hot water heater The antifreeze control is detected under the condition of TWI 15 C while TWI 15 C TTW 20 C is not detected after the heater backup O O 1 Activated by a large load of heating or hot water supply 2 Check the heater power circuit backup or hot water c...

Page 77: ...the master and slave Hydro unit 1 F03 TC sensor error Open or short circuit in the heat exchange temperature sensor O O 1 Check the resistance value and connection of the heat exchange temperature sensor TC 1 93 F10 TWI sensor error Open or short circuit in the water inlet temperature sensor O O 1 Check the resistance value and connection of the water inlet temperature sensor TWI 1 95 F11 TWO sens...

Page 78: ...O O 1 Check the connection body or connection wiring of the low pressure sensor 2 Check the resistance value of the low pressure sensor 3 Check the refrigeration cycle gas leak 1 99 F29 EEROM error Inconsistency is detected once without verify ACK after writing to EEPROM 1 Replace the water heat exchange control board 1 99 F30 Extended IC error When the extended IC is abnormal 1 Replace the water ...

Page 79: ...nk temperature sensor O 1 Check the resistance value and connection of the heat sink temperature sensor TH 8 111 F15 TE TS sensors error TE TS sensor connections are opposite O 1 Check for any wrong installation of the heat exchange temperature sensor TE and the suction temperature sensor TS 4 111 F24 PD sensor error Open or short circuit in the high pressure sensor O 1 Check the value of PD senso...

Page 80: ...eat sink grease between the outdoor control board and the heat sink 2 Check the heat sink fan duct 3 Check the resistance value of the heat sink temperature sensor TH 4 105 P15 Detection of gas leak When the discharge temperature sensor TD exceeds 106 C for consecutive 10 min When the suction temperature sensor TS exceeds 60 C for cooling or 40 C for heating for 10 consecutive min When TG TC 10 K ...

Page 81: ...e connector 3 Check the power supply voltage AC220 230 V 10 8 109 P26 Short circuit of the compressor driver element error When an abnormal short circuit of IGBT is detected O 1 P26 abnormality occurs when operating with the compressor wiring disconnected Check the control board 2 No abnormality occurs when operating with the compressor wiring disconnected Compressor rare short 8 109 P29 Compresso...

Page 82: ... controller and the base unit of the Hydro unit detected on the remote controller side Stop Automatic reset Displayed when the abnormality is detected Defect in the reception of the remote controller 1 Check the remote controller crossover 2 Check the remote controller 3 Check the hydro power supply wiring 4 Check the water heat exchanger board E02 Defect in the signal transmission to the hydro un...

Page 83: ...board No No Identify causes and resolve strainer Excess air noise comes from inside the pump Flow switch is connected to board Pump is connected to board Flow switch is normal Chattering noise comes from flow switch Pump stops 2 3 minutes after its rotation started TC sensor characteristic is correct Yes Yes A01 occurs Operation restarts Water heat exchanger control board is defective replace it P...

Page 84: ... 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 circuits does not come in No Failure of backup heater Too large heater input thermostat short circuit Replace heater unit Yes Backup heater is energized No Measure heater current Start Replace water heat exchange control board Yes Flow...

Page 85: ...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 temperature 82 C Start Replace water heat exchange control board Replace Mg sw No Mg sw RY05 for heater operates Yes Operating noise at normal time ...

Page 86: ...ter heat exchanger board DP_SW11 1 is ON Power is connect to backup heater terminal Backup heater terminal has AC 220 230 V 10 Start Operation restart Replace water heat exchange control board Perform air vent Set heater breaker to ON Check hydro wiring Replace flow switch No No Yes Yes Yes Yes Replace backup heater unit No Backup heater NG See Characteristic table on page 101 Backup heater elemen...

Page 87: ...ter terminal Yes Yes Restart TWI 4 TWO 4 or THO 4 is detected Circulation pump keeps being energized or 3 minutes passed after the start No No Place power cable for backup heater Set breaker for backup heater to ON or Check hydro electronic wiring No Backup heater element is conductive Yes Replace TWI TWO and THO sensors No TWI TWO THO sensor characteristics are correct Yes Yes Replace water heat ...

Page 88: ...iciently excess air Place buffer tank and the second pump No Excess air noise comes from inside pump Chattering noise comes from flow switch Start No No Yes Raise set temperature Yes Cooling overload operation Continued operation at low outside temperature and at 15 C or lower set temperature No Defrost outdoor unit where frost remains Yes Defrosting takes 15 mins or longer Frost remains No Replac...

Page 89: ...ater Yes Flow switch is normal Yes No At normal temperature overheat preventive thermostat is normal Yes Start Replace water heat exchange control board or overheat preventive thermostat failure Replace water heat exchange control board or overheat preventive thermostat failure After the control board is replaced if the same operation repeats the overheat preventive thermostat is determined as def...

Page 90: ...e Flow switch is normal Secure water circulation amount Circulation flow shortage Replace control board 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 Recharge refrigerant Raise the set water temperature Add fan coils No Excess air noise comes from inside pump Chattering noise comes f...

Page 91: ...ger 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 comes from inside pump Chattering noise comes from flow switch Start No No Yes Attach TWI sensor No TWI sensor is attached to pipe Yes Replace TWI or TWO sensor No TWI and TWO sensor characteristics are normal Yes Yes Yes Replace water heat exchange control boar...

Page 92: ...er Hot water supply Hot water cylinder heater After 1 hour since heater operation started neither TWI 15 C nor TTW 20 C is met Freeze prevention control is detected once No No Place electric wire for backup heater Place electric wire for hot water cylinder Set breaker for backup heater to ON Set breaker for hot water cylinder to ON or check hydro wiring No Backup heater element is conductive Yes R...

Page 93: ...92 A13 Pump error Input appropriate voltage Yes Yes Start No No Reject the factor Replace pump Input voltage is appropriate The water pump is locking by some factor ...

Page 94: ...t Correct wiring and connecting wire No Yes CN04 connector and terminal block 1 2 3 wiring are normal Correct connector and terminal block wiring No Yes When power is on again D502 Amber LED blinks Check water heat exchanger board If defective replace it No Yes Correct TC sensor connection Replace TC sensor No No TC sensor connector CN203 is connected Yes TC sensor resistance characteristic is nor...

Page 95: ...teristic table on page 113 Correct TE sensor connection Replace TE sensor No No TE sensor connector CN601 is connected Yes TE sensor resistance characteristic is normal Yes Start Replace water heat exchange control board Refer to Characteristic table on page 113 Correct TL sensor connection Replace TL sensor No No TL sensor connector CN604 is connected Yes TL sensor resistance characteristic is no...

Page 96: ...o Characteristic table on page 113 Correct TWI sensor connection Replace TWI sensor No No TWI sensor connector CN205 is connected Yes TWI sensor characteristic is normal Yes Start Replace water heat exchange control board Refer to Characteristic table on page 113 Correct TWO sensor connection Replace TWO sensor No No TWO sensor connector CN205 is connected Yes TWO sensor characteristic is normal Y...

Page 97: ...haracteristic table on page 113 Correct TFI sensor connection Replace TFI sensor No No TFI sensor connector CN213 is connected Yes TFI sensor characteristic is normal Yes Start Replace water heat exchange control board Refer to Characteristic table on page 113 Correct THO sensor connection Replace THO sensor No No THO sensor connector CN206 is connected Yes THO sensor characteristic is normal Yes ...

Page 98: ...ensor No No THO sensor is attached to pipe Yes THO sensor characteristic is normal Yes Replace TWO sensor No TWO sensor characteristic is normal Yes Start Replace water heat exchange control board Refer to Characteristic table on page 113 Refer to Characteristic table on page 113 ...

Page 99: ... Make the mixing valve setting correct No No Mixing valve is attached Yes Mixing valve connection is correct Yes No FC_0C Mixing valve running time 30sec to 120sec Mixing valve setting is correct Yes Replace TWO sensor No TWO sensor characteristic is normal Yes Start Replace water heat exchange control board Refer to Characteristic table on page 113 Refer to Characteristic table on page 113 Refer ...

Page 100: ...rvice board L02 Combination Error The model name of the outdoor unit is not HWS P805HR E or HWS P1105HR E Replace the outdoor unit with the proper model L07 Error At the time of power on detecting the above failure automatically activates the automatic address setting mode Check code is not output Note that if the above failure is detected in the automatic address setting mode a check code may be ...

Page 101: ...er if ZONE1 is not set and ZONE2 is set L16 displays abnormality Set correctly DP_SW12 2 3 No Set hydro unit capacity data Setting item code FC_01 8 kW 12 11 kW 15 Water heat exchange control board MCC 1511 Check If defective replace it Yes Hydro unit capacity is not set ...

Page 102: ...rough D804 lit yellow indicates that a failure occurred Indication 1 With the status above pressing the SW800 button for one second causes the yellow LED to blink Indication 2 Pressing again SW800 for one second or longer returns to Indication 1 The combination of Indication 1 and Indication 2 can determine what kind of abnormality Check code Outdoor LED indication Check and Action procedure No sp...

Page 103: ...d board side compressor side reactor power lead Check and correct wiring connection No Yes Power voltage is normal AC220 230 V 10 PC board P805HR E P1105HR E MCC 1571 CN609 connector and case thermostat is normal Correct connector Replace case thermostat Check for piping collapse and break If defective repair or replace it No Yes If case thermostat is short circuited cooling and heating can operat...

Page 104: ...temperature Check code Outdoor LED indication Check and Action procedure No specific description indicates outdoor unit parts Cut jumper line by following the instruction comes with the service board package Replace the hydro unit with the proper model Check outdoor control board If defective replace it PC board P805HR E P1105HR E MCC 1571 No gas leakage Appropriate refrigerant amount Correct defe...

Page 105: ...h normal Reset the power supply and then do a test run according to the season Is there any element which blocks heat exchanger of the outdoor unit Clogging of heat exchanger Short circuit Parts check Defective Replace Elimination of blocking element Check Comp IPDU PC board Defective Replace Wiring check Correct Open service valve fully Repair defective position Overcharge of refrigerant Clogging...

Page 106: ... single phase PC board P805HR E P1105HR E MCC 1571 Check outdoor control board If defective replace it Yes Yes No The screws are loose in motor drive element Q200 300 400 of outdoor control board and rectifier DB01 02 03 MCC 1571 Radiation grease was not applied to backside of Q200 DB01 DB02 or DB03 No Is not the ventilation flue of the heat sink blocked Is not the fan blocked Short circuit etc HW...

Page 107: ...leakage Appropriate refrigerant amount Correct defective portion Re charge refrigerant No Yes Pulse motor valve is normal Correct defective portion Replace defective parts No Yes Service valve is fully opened Open fully service valve No Yes Piping collapse Repair or replace pipe Yes No Temperature sensor check Discharge sensor CN603 Suction sensor CN600 Correct connector Replace sensor NG OK PC bo...

Page 108: ...her the board is good With digital tester Although values shown has some range if its maximum value is 180DCV or higher the board is good Check code Outdoor LED indication Check and Action procedure No specific description indicates outdoor unit parts Temperature sensor check TE sensor CN601 TS sensor CN600 Hydro TWO sensor If defective repair or replace it 4 way valve check If defective replace i...

Page 109: ...s No Check outdoor fan If defective replace or tighten it Yes Outdoor fan operates normally No Check the same item as those for P22 abnormality Reset the power source and perform a trail operation according to the season Something prevents outdoor unit heat exchange Clogged heat exchanger short circuit No Yes Check for refrigerant overcharged clogged cycle pipe break abnormal overload etc If defec...

Page 110: ...indicates outdoor unit parts Check outdoor control board If defective replace it No Yes Yes Check wiring Request power source repair When not energized the fan motor can be smoothly rotated by hand Fan motor coil resistance is normal Between red white leads 12 20 Between white black leads 12 20 Between black red leads 12 20 No Replace fan motor Power voltage is normal AC220 230 V 10 single phase P...

Page 111: ...ription indicates outdoor unit parts TD sensor connector CN603 is connected Correct TD sensor connection Replace outdoor control board No TD sensor resistance characteristic is normal Replace TD sensor No Yes Yes PC board P805HR E P1105HR E MCC 1571 See the characteristic table on page 92 TE sensor connector CN601 is connected Correct TE sensor connection Replace outdoor control board No Yes TE se...

Page 112: ...e TO sensor No Yes PC board P805HR E P1105HR E MCC 1571 See the characteristic table on page 92 TS sensor connector CN600 is connected Correct TS sensor connection Replace outdoor control board No Yes TS sensor resistance characteristic is normal Replace TS sensor No Yes PC board P805HR E P1105HR E MCC 1571 Replace outdoor control board PC board P805HR E P1105HR E MCC 1571 TE and TS sensor is atta...

Page 113: ...ED indication Check and Action procedure No specific description indicates outdoor unit parts PD sensor connector CN606 is connected Correct PD sensor connection Replace outdoor control board No Yes PD sensor is normal Replace PD sensor No Yes Check outdoor control board If defective replace it PC board P805HR E P1105HR E MCC 1571 ...

Page 114: ...5 12 26 55 28 03 40 5 013 5 192 5 375 50 17 00 17 92 18 86 50 3 312 3 451 3 594 60 11 74 12 34 12 95 60 2 236 2 343 2 454 70 8 269 8 668 9 074 70 1 540 1 623 1 709 80 5 925 6 195 6 470 80 1 082 1 146 1 213 90 4 321 4 507 4 696 90 0 7740 0 8237 0 8761 100 3 205 3 336 3 468 100 0 5634 0 6023 0 6434 0 10 0 10 20 30 40 50 60 10 20 30 40 50 60 70 80 90 100 0 0 0 5 10 15 20 50 100 150 200 10 20 30 40 50...

Page 115: ... alive for 3 sec 3 3WV_W 4 Mixing valve Alive for 30 sec in the forward direction Alive for 30 sec in the reverse direction 5 Built in circulation pump Alive not alive for 20 sec 6 External circulation pump 1 Alive not alive for 20 sec 7 External circulation pump 2 Alive not alive for 20 sec Reserved 8 Water heat exchange backup heater Repeat heater 1 heater 2 and OFF every 20 sec The built in cir...

Page 116: ...sor Hot water cylinder temperature TTW sensor Floor inlet temperature TFI sensor Remove the connector and measure the resistance value with a tester Normal temperature Temperature 0 C 10 C 20 C 30 C Sensor Water heat exchange temperature TC sensor 33 8 kΩ 20 35 kΩ 12 59 kΩ 7 99 kΩ Water inlet temperature TWI sensor Water outlet TWO sensor Hot water cylinder temperature TTW sensor Floor inlet tempe...

Page 117: ... connector and measure the resistance value with a tester 10 20 kΩ Normal temperature 7 Discharge temperature TD sensor Remove the connector and measure the resistance value with a tester Red White Black Location Resistance value Red White 1 04 1 16 Ω White Black 1 04 1 16 Ω Black Red 1 04 1 16 Ω At 20 C Red White Black Location Resistance value Red White 14 8 1 5 Ω White Black Black Red M 1 Black...

Page 118: ...s run Heat pump activate OFF 10_2 Pump P1 operation during room heating P1 pump stop or not using outside air temperature OFF Continuous run ON Pump P1 stop when TO 20 o C Available to change the temperature setting by FC 9E Continuous run OFF 10_3 Synchronization of Pump P1 and P2 Non synchronous OFF 10_4 Pump P1 ON OFF cycling During long periods of system OFF No OFF SW11 Switching details Facto...

Page 119: ...tion switching SPST OFF 13_2 Boiler output enabled No OFF 13_3 Auto Restart of power outage after system power failure Yes OFF 13_4 ON 1 Press the button and the button at same time for 4 seconds or longer on the top screen to display the FIELD SETTING MENU 2 Press the button to select FC for Hydro unit on the FIELD SETTING screen then press the button 3 Press the button to select FC number or Dat...

Page 120: ...top screen to display the FIELD SETTING MENU 2 Press the button to select FC for Remote controller on the FIELD SETTING screen then press the button 3 Press the button to select FC number or Data then press the button to set the value 4 Press the button The set value is registered FIELD SETTING MENU 2 2 FC for Hydro unit FC for Remote controller SET FC for Remote controller FC No Data FIX 0000 ...

Page 121: ...ion start 0020 20 C 0010 10 C 0000 0 C 25 Hot water temperature compensation value 0000 0K 0015 15K 0003 3K 26 Night setback change temperature range 0003 3K 0020 20K 0005 5K 27 Set temperature shift with heating Auto 0005 5K 0005 5K 0000 0K 29 Outside air temperature T1 temperature 0015 15 C 0000 0 C 0010 10 C 2B Outside air temperature T3 temperature 0000 0 C 0015 15 C 0010 10 C 2C Set temperatu...

Page 122: ...onal output For the optional PC board connected to CN209 0000 1 3 During defrosting 2 3 While compressor is running 0001 1 3 As error is detected 2 3 During operation 0000 1 3 During defrosting 2 3 While compressor is running 6E To diff temperature when pump P1 stop at to 20 C 0001 1K 0005 5K 0002 2K 73 Hot water tank heater start time of heat pump while operating 0000 30 min passed 0003 120 min p...

Page 123: ...m temperature sensor cooling 10K 10K By 1K steps 1 1K correction 05 24H 12H display switching 0 24H display 1 12H AM PM display 0 24H display 09 Night time low noise mode 0 Invalid 1 Valid 0 Invalid 0A Night time low noise start time 0 23 0 00 to 23 00 22 22 00 0B Night time low noise end time 0 23 0 00 to 23 00 06 06 00 0C Anti bacteria start time 0 23 0 00 to 23 00 22 22 00 0D Anti bacteria star...

Page 124: ...switch SW07 until the yellow LED turns off When the tactile switch SW07 has been press for 5 sec flashing becomes quickly And when the switch will be pressed further 5 sec the yellow LED will turn off When the SW07 is released the yellow LED start to flash quickly again 3 Turn off the power supply of the hydro unit and the outdoor unit 4 Set SW06_1 and _2 to OFF 5 Replace the electrical box cover ...

Page 125: ...a few second the operation starts Check that the hydro unit starts cooling and that the floor heating system is not cooled Press the button to stop the operation Press the button to start the Hot water supply operation Check that there is no air entrainment Check that hot water is present at the connection port of the hot water cylinder Press the button or ON OFF button to stop the operation 1 Pre...

Page 126: ...ton and the button at same time for 4 seconds or longer on the top screen to display the FIELD SETTING MENU 2 Press the button to select FC for Hydro unit on the FIELD SETTING screen then press the button 3 Press the button to select FC number or Data then press the button to set the value 4 Press the button The set value is registered FIELD SETTING MENU 2 2 FC for Hydro unit FC for Remote control...

Page 127: ... 20 60 C 2E Setting temperature C at T2 0 C 30 20 60 C 2F Setting temperature D at T3 25 20 60 C 30 Setting temperature E at 20 C 20 20 60 C A1 Outside temperature T0 20 30 20 C 29 Outside temperature T1 10 15 0 C 2B Outside temperature T3 10 0 15 C 27 Set temperature shift with heating set to auto 0 5 to 5K TSC_F C A 40 B 35 E 20 T0 20 20 TO C T1 10 FC_A2 1 Fixed value method TSC_F C A 40 B 35 C ...

Page 128: ...creen 2 Press the button for 4 seconds or longer to enter the setting mode The function code setting screen appears FC No 27 Shifted temperature Range 5 5 Default 0 3 Press the button to select Data value then press the button to adjust the temperature between 5K to 5 K 4 Press the button The set temperature is registered Auto mode MENU 1 2 Schedule timer Night setback Silent mode Hot water boost ...

Page 129: ... press the button 4 Press the button to select the date month year and time 5 Press the button to set the value then press the button The clock display appears on the top screen The clock display blinks if the clock setting has been reset due to power failure or other cause Anti bacteria MENU 2 2 Frost protection Setting Information SET Initial setting Setting Schedule setting SET Clock Initial se...

Page 130: ...U screen then press the button 2 Press the button to select Schedule setting on the setting screen then press the button 1 Press the button to select Condition setting on the Schedule setting screen then press the button 2 Press the button to select the day then press the button to input running pattern 3 Press button to select the change item then press the button Anti bacteria MENU 2 2 Frost pro...

Page 131: ...ng temperature Z2 ZONE2 setting temperature HW Hot water supply operation setting temperature Start Operation start time 0 00 23 59 End Operation end time 0 00 24 00 means the operation continues If End time is set earlier than Start time an error is displayed Schedule timer confirm Condition setting NO YES ...

Page 132: ... 55 45 00 00 03 00 Condition setting 1 2 HEAT ALL TUE WED THU FRI SAT SUN Mode Start End Z1 Z2 HW MON COPY RESET DAY SET 12 13 14 15 16 17 18 19 20 21 22 23 2 3 4 5 6 7 8 9 10 11 12 0 1 MON TUE Heating 55 45 21 00 Condition setting 1 2 COPY RESET HEAT ALL TUE WED THU FRI SAT SUN Mode Start End Z1 Z2 HW MON DAY SET 55 45 02 30 03 00 Condition setting 1 2 HEAT ALL TUE WED THU FRI SAT SUN Mode Start ...

Page 133: ...e button then the contents of the setting is cleared Condition setting 1 2 ALL TUE WED THU FRI SAT SUN Mode Start End SET DAY COPY RESET Z1 Z2 HW MON Copy the previous day setting Condition setting NO YES 55 45 08 00 22 00 25 23 00 65 18 00 19 00 Condition setting 1 2 COOL HW HEAT ALL TUE WED THU FRI SAT SUN Mode Start End Z1 Z2 HW MON SET DAY COPY RESET 55 45 08 00 22 00 25 23 00 65 18 00 19 00 C...

Page 134: ... button 2 Press the button to select object then press the button to select LOCK or UNLOCK LOCK 3 Press the button to Fix When LOCK is selected the key cannot be used during Key lock and schedule timer The factory default is UNLOCK 1 Press the button to select Schedule timer on the MENU screen then press the button 2 Press the button to select ON on the Schedule timer screen then press the button ...

Page 135: ...ver the Night setback operation that is set separately Start the heating operation before making the setting It may not be able to go to the setting screen immediately after start In that case select Frost protection again after tens of seconds 1 Press the button to select Frost protection on the MENU screen then press the button 2 Press the button to select ON on the Frost protection screen then ...

Page 136: ...r longer to enter the setting mode The function code setting screen appears FC No 12 End days Range 0 20 Default 0 13 End times Range 0 23 Default 0 ex Code No 12 05 13 13 5 days 13 hours 3 Press the button to select FC number or Data then press the button to set the value 4 Press the button The set value is registered MENU 2 2 Frost protection Setting Information SET Anti bacteria Frost protectio...

Page 137: ...t the heating or cooling operation then the mark appears on the top screen 1 Press the button to select an Night setback on the MENU screen 2 Press the button for 4 seconds or longer to enter the setting mode The function code setting screen appears FC No 0E Start time Range 0 23 Default 22 0F End time Range 0 23 Default 06 3 Press the button to select FC number or Data then press the button to se...

Page 138: ...i bacteria start time and cycle This function is available only for the header remote controller 1 Press the button to select Anti bacteria on the MENU screen then press the button 2 Press the button to select ON on the Anti bacteria screen then press the button 3 Start the hot water operation then the mark appears on the top screen 1 Press the button to select Anti bacteria on the MENU screen 2 P...

Page 139: ...f seconds Hot water boost operation with the heat pump and heater ends when the water temperature reaches 75 C however the normal hot water supply operation automatically starts after 60 minutes even if the temperature is not as high as 75 C How to set Hot water boost operation time and temperature In FC_08 or 09 the operation time and set temperature can be changed FC_08 Operation time change ran...

Page 140: ...ent mode screen then press the button 3 Start the heating cooling or hot water operation The mark appears on the top screen during the set up time zone 1 Press the button to select Silent mode on the MENU screen 2 Press the button for 4 seconds or longer to enter the setting mode The function code setting screen appears FC No 0A Start time Range 0 23 Default 22 0B End time Range 0 23 Default 06 3 ...

Page 141: ...heating operation starts To perform defrosting again start with 1 above Performing the forced defrosting once cancels the forced defrosting setting above described 1 Press the button and the button at same time for 4 seconds or longer on the top screen to display the FIELD SETTING MENU 2 Press the button to select Forced defrosting on the FIELD SETTING screen then press the button 3 Press the butt...

Page 142: ...he button at same time for 4 seconds or longer on the top screen to display the FIELD SETTING MENU 2 Press the button to select Service monitor on the FIELD SETTING MENU screen then press the button 3 Press the button to select the unit then press the button to display the status Service monitor FIELD SETTING MENU 2 2 FC for Hydro unit FC for Remote controller SET Service monitor UNIT 1 UNIT 4 UNI...

Page 143: ...61 Outside air temperature TO C 62 Discharge temperature TD C 63 Suction temperature TS C 65 Heat sink temperature THS C 6A Current 10 A 6D Heat exchanger coil temperature TL C 70 Compressor operation Hz Hz 72 Number of revolutions of outdoor fan lower or 1 fan model rpm 73 Number of revolutions of outdoor fan upper rpm 74 Outdoor PMV position 1 10 pls Service data Item code Data name Unit F0 Micr...

Page 144: ... 1 Press the button and the button at same time for 4 seconds or longer on the top screen to display the FIELD SETTING MENU 2 Press the button to select Alarm history on the FIELD SETTING MENU screen then press the button 1 Press the button to reset the alarm history 2 Press the button then all alarm data is cleared Test mode FIELD SETTING MENU 1 2 Floor drying Forced defrosting Information input ...

Page 145: ...r longer FC 14 setting start and End temperature 20 55 C FC 15 setting Max temperature 20 55 C FC 16 continuation days for every step up to Max temperature 1 7 days FC 17 temperature difference for every step up to Max temperature 1 10 K FC 18 continuation days for every step down to End temperature 1 7 days FC 19 temperature difference for every step down to End temperature 1 10 K FC 1A Continuat...

Page 146: ... the heating operation on the top screen Then ZONE1 mark blinks during Floor drying operation and lapsed days are displayed If some abnormalities occur during Floor drying operation the System stops and Alarm history screen is displayed After heating operation is stopped by operating the remote controller during Floor drying operation if heating operation is again started within 30 minutes Floor d...

Page 147: ...g the operation D805 green LED blinks Note that this operation lasts for 10 minutes 3 After 3 minutes has passed close the liquid side valve 4 After the refrigerant recovery is completed close the gas side valve 5 Press again the push button switch SW801 for approx 1 second The outdoor unit stops operation cooling 1 If can not remove the water Operate the circulation pump to prevent freezing 1 Tur...

Page 148: ...t air duct through the fan guard or a heat exchanger gap and causing motor lock If the outside air temperature is 0 C below this control operates the outdoor fan in W5 even if the compressor is not in operation Defrosting time change J805 J806 If the defrosting interval is shorter than the standard the jumper wire is cut For the control details or how to cut the jumper wire see defrosting control ...

Page 149: ... unit and outdoor unit serial communication D503 Green LED Signal display signals from the outdoor unit of communication between hydro unit and outdoor unit serial communication D800 to D804 Yellow LED Abnormality indication All OFF of SW803 or the lit status of any of D800 to D804 indicates that the outdoor control unit detects an abnormality Setting SW803 to other than OFF shows details with LED...

Page 150: ...mality details of the current one is displayed This setting does not display a TO sensor failure Check for the failure with the setting for current abnormality See 2 2 Temperature sensor indication These switches indicate the temperature sensor detecting value TC TWO 2 heating hot water supply TC TWO cooling See 2 3 Current indication This switch indicates the current value in the outdoor unit See...

Page 151: ...t sink temperature sensor TH failure Heat exchanger suction sensor TE TS wrong wiring High pressure sensor PD failure EEPROM failure Compressor break down Compressor lock Current detection circuit failure Faulty compressor case thermostat Not set up the capacity Combination failure between the hydro unit Communication failure between MCUs Other abnormality e g Compressor s loss of synchronism Abno...

Page 152: ... 13 13 9 14 14 9 15 15 9 16 16 9 17 17 9 18 18 9 19 19 9 20 20 9 21 21 9 22 22 9 23 23 9 24 24 9 25 25 9 26 26 9 27 27 9 28 28 9 29 29 9 30 30 9 31 or higher 0 4 5 9 10 14 15 19 20 24 25 29 30 34 35 39 40 44 45 49 50 54 55 59 60 64 65 69 70 74 75 79 80 84 85 89 90 94 95 99 100 104 105 109 110 114 115 119 120 124 125 129 130 134 135 139 140 144 145 149 150 154 155 or higher 0 19 20 39 40 59 60 79 8...

Page 153: ...e operation returns to the normal control Caution Although these controls are available during an operation basically perform them when no operation is in progress Performing these controls during an operation may cause dangerously rapid pressure change No operation particularly PMV full open operation Fully opens PMV Pulse motor valve When SW801 is pressed again or after 2 minutes the operation r...

Page 154: ... When SW801 is pressed again or after 2 minutes the operation returns to the normal control Heater output relay operation RY703 CN703 for check Sets relay for optional heater RY703 to ON When SW801 is pressed again or after 2 minutes the operation returns to the normal control External output relay operation RY704 CN704 for check Sets relay for external output RY704 to ON When SW801 is pressed aga...

Page 155: ...tching Cut these jumper wires according to the following table J804 J811 Settings Set these jumper wires to the settings of the PC board before replacement DIP switch SW802 Settings Set SW802 to the setting of the PC board before replacement SW803 LED indication switching Set SW803 to all OFF SW804 Special operations for service Set SW804 to all OFF SW805 Only H8series Special operations for servi...

Page 156: ...ing repair Failure to do so may cause an injury when accidentally contacting the parts Thick gloves such as cotton work gloves No Exchange parts name Work procedure Remarks 1 Common procedure Front panel Electrical control box cover lower Electrical control box cover upper 1 How to remove 1 Stop the hydro unit operation and turn off the power breaker 2 Remove the front panel ST1T Ø4 10 6 screws 3 ...

Page 157: ...ensor 2P Red CN206 THO sensor 3P White CN207 Low pressure sensor 2P Blue CN212 Low pressure sensor 4P White CN213 TB 06 4P Terminal block 3P White CN214 TB 06 4P Terminal block 2P White CN305 TB 01 3P Terminal block 3P Green CN500 PWM control line 6P Blue CN501 Relay board 6P Yellow CN601 Relay 05 3P Red CN602 TB 04 6P Terminal block 7P White CN603 Pump 3P Yellow CN604 Relay 06 TB 04 4P Terminal b...

Page 158: ... CN200 Flow switch 3P Red CN201 Pressure switch 2P White CN202 Bimetal thermostat 3P Yellow CN203 TC sensor 2P Yellow CN204 TWI sensor 3P Brown CN205 TWO sensor 2P Red CN206 THO sensor 3P White CN207 Low pressure sensor 2P Blue CN212 Low pressure sensor 4P White CN603 Pump 3P Yellow Disconnect the heater power source cable For backup heater and hot water cylinder heater from the MgSW NOTE When rem...

Page 159: ...he side board Left ST1T Ø4 10 5 screws 7 Upper board 1 Perform the step 1 1 1 2 3 and step 6 2 Remove the fixed screws of the upper board ST1T Ø4 10 4 screws 8 Bottom board 1 Perform the step 1 1 1 2 3 and step 6 2 Remove the fixed screws of the bottom board ST1T Ø4 10 4 screws Removal is required if water and refrigerant piping are connected No Exchange parts name Work procedure Remarks Side boar...

Page 160: ...nd When installing the expansion vessel please attach the waterproof seal at the water connection To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the hydro unit The Overpressure preventive valve connection uses an O ring for water seal Be careful not to scratch the O ring otherwise water leakage may occur After the Overpressure pre...

Page 161: ...s To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the hydro unit The pump connection uses a liquid packing for water seal When replacing the pump use a packing which was slathered with the liquid gasket Part code Service parts 37595721 Packing After the pump replacement repair open the water supply source valve and water piping val...

Page 162: ...hydro unit The flow switch connection uses an O ring for water seal Be careful not to scratch the O ring otherwise water leakage may occur After the flow switch replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the flow switch connection has no water leakage Flow switch Flow switch Flow switch Flow switch Flow switch Fl...

Page 163: ...the valve of water pipe connected to the hydro unit The heater connection uses a liquid packing for water seal When replacing the heater use a packing which was slathered with the liquid gasket Part code Service parts 37595721 Packing After the heater assembly replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the heater...

Page 164: ...cted to the hydro unit and then remove the refrigerant and water piping Perform refrigerant recovery with the outdoor unit Disconnect all the power source cable outdoor unit connection cable and cylinder connection cable The heater connection uses a packing for water seal Be careful not to scratch the packing otherwise water leakage may occur After the water heat exchanger assembly replacement rep...

Page 165: ...t the power source cable and connecting cables between hydro and outdoor from the cord clamp and terminals 4 Remove the top board Hex Ø4 10 5 screws 2 How to attach 1 Attach the top board Hex Ø4 10 5 screws 2 Connect the power source cable and connecting cables between hydro and outdoor to the terminal and fix them with the cord clamp NOTE The power source cable and connecting cable between hydro ...

Page 166: ...Perform the step 1 1 2 Remove the screws that fixes the inverter assembly and the side cabinet ST1T Ø4 8 2 screws 3 Remove the screws of the side cabinet and valve fixing board ST1T Ø4 8 2 screws 4 Remove the screws of the side cabinet and piping panel back Hex Ø4 10 2 screws 5 Remove the screws of the side cabinet and bottom board Hex Ø4 10 1 screws 6 Remove the screws of the side cabinet and fin...

Page 167: ... Ø3 20 1 screw 6 Remove the control board Supporter 5 positions Note Removing the control board may be difficult due to the heat release grease for the heat sink 7 Attach a new control board NOTE Be careful for not taking the compressor lead V CN201 White for the reactor lead CN05 or 06 White The compressor lead has a transparent sleeve at its ring terminal The reactor lead ring terminal does not ...

Page 168: ...ght screw Ø4 6 4 screw 5 Attach a new reactor NOTE Be sure to bind the removed binding tie by using the commercially available binding tie Make sure that the fan motor lead and the reactor body do not contact each other No Exchange parts name Work procedure Remarks Reactor body Fan motor lead Binding tie Compressor lead Binding tie Compressor lead Reactor lead Binding tie Fan motor lead Reactor le...

Page 169: ...ngth of fan motor lead fixing rubber so that it does not slack Attach the fan motor lead fixing rubber to the parting board so that the projection part is placed on the refrigerant cycle side Make sure that the reactor body and the fan motor lead do not contact each other Be sure to bind the removed binding tie by using the commercially available binding tie Be sure to re attach the ferrite core o...

Page 170: ...hite W CN202 Black 9 Remove the outlet and suction pipes connected to the compressor by using a burner WARNING When removing the piping by burning the solder take enough care for a fire going off at the moment the wax melts if oil remains inside the piping NOTE Do not make fire flame contact with the 4 way valve and pulse motor valve This may cause an operation failure 10 Pull out the discharge an...

Page 171: ...ay fail How to make pulse motor valve forcible full open Turn on the electric leakage breaker Set the SW804 dip switch 1 and 3 on the outdoor unit control board to ON Press SW801 on the outdoor unit control board for 1 second or longer After pressing SW801 for 1 second or longer turn off the electric leakage breaker within 2 minutes 4 Charge refrigerant 1 Add refrigerant whose amount is defined ac...

Page 172: ...ing damaged 2 Remove the outlet cabinet and put with the fan guard side down 3 Remove the screw for the bell mouth and fan guard PT2P Ø3 x 14 and washer 4 pcs 4 Release the hooks 8 positions of the fan guard 2 How to attach 1 Press the hooks 8 positions with hands from the front side to fix them 2 Attach the bell mouth fixed with screws and washers PT2P Ø3 x 14 and washer 4 pcs NOTE Check that all...

Page 173: ... nuts fixing the compressor 10 Remove the screw fixing the partition plate and bottom plate 1 pcs ST1T Ø4 8 11 Remove the screws fixing the heat exchanger and bottom plate 2 pcs ST1T Ø4 8 12 Disconnect the connector of the bottom plate heater from the CDB PC board 13 Lift the main unit up and detach the bottom plate 14 Replace the heater 21 pcs ST2T Ø4 8 and 2 pcs hex screw Ø5 10 2 Attachment Exec...

Page 174: ...dro unit to place humidity location or high humidity region also user use cooling mode please attach moisture proof parts which parts are contained in Hydro unit Insulator Hydro unit Stick the optional insulator for cooling to the bottom of the Hydro Unit ...

Page 175: ...er control board Terminal block Annually Check for loose connector and connecting terminal Outdoor unit HWS P805HR E P1105HR E Frequency Periodic inspection details 1 Insulation measurement Power source circuit Compressor Annually Insulation measurement with a mega tester 2 Power source measurement No load voltage Rated operation Annually Electronic voltage measurement 220 230 V 10 Single phase ty...

Page 176: ...175 15Part exploded view part list Hydro Unit 241 242 209 218 244 243 213 242 211 202 203 201 206 215 216 217 207 204 236 205 237 210 203 212 208 238 Portion A Details of portion A ...

Page 177: ...176 E P Box Assembly Hydro Unit 220 221 223 222 224 225 226 227 228 229 230 231 232 233 239 240 235 234 235 224 ...

Page 178: ...1 1 1 216 37551737 SWITCH FLOW 1 1 1 217 43F32441 NIPPLE DRAIN 1 1 1 1 1 1 218 37595721 PACKING ASSY 1 1 1 1 1 1 220 3026V072 PC BOARD ASSY 1 1 1 1 1 1 221 4316V338 PC BOARD ASSY 1 1 1 1 1 1 222 43152401 CONTACTOR MAGNETIC 2 3 3 2 3 3 223 43158187 TRANSFORMER 1 1 1 1 1 1 224 43154156 RELAY LY1F 1 2 2 1 2 2 225 43054107 RELAY LY1F 1 1 1 1 1 1 226 43160297 FUSE 4 6 8 4 6 8 227 43060059 FUSE HOLDER 4...

Page 179: ...or Unit HWS P805HR E P1105HR E 001 002 018 055 056 013 017 030 029 022 015 052 020 014 011 019 012 010 021 005 023 007 008 036 006 009 016 057 058 003 028 026 032 031 033 024 034 035 027 037 004 025 038 053 054 ...

Page 180: ... 43120244 FAN PROPELLER PB521 2 2 022 43122113 BELL MOUTH 2 2 023 4312C100 MOTOR FAN ICF 280 A100 1 A 2 2 024 43146676 J0INT CHECK 1 1 025 4314N092 VALVE PACKED 9 52 1 1 026 37546878 VALVE 4 WAY STF H0404 1 1 027 43146724 VALVE BALL SBV JA5GTC 1 R0HS 1 1 028 43148170 ACCUMULATOR ASS Y 1 1 029 37546876 CONDENSER ASSY DOWN 1 1 030 37546877 CONDENSER ASSY UP 1 1 031 4314N023 VALVE PLUS MODULAING UKV ...

Page 181: ...180 Inverter Assembly HWS P805HR E P1105HR E 711 709 710 705 706 707 704 703 701 708 702 TD TL TS TE TO TO TE ...

Page 182: ...ICE 3 3 702 43F63325 HOLDER SENSOR TE 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 SENSOR 1 1 709 43163059 SPACER BUSH 1 1 710 43163060 SPACER COLLAR 1 1 711 3026V074 PC BOARD ASSY MCC 1571 1 1 ...

Page 183: ...182 ...

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