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[

VI

Refrigerant System Diagram ]

- 11 -

HWE18170

GB

VI

Refrigerant System Diagram

[1] Refrigerant system diagram

(A) Water outlet thermistor TH23

(B) Water outlet

(C) Water inlet

(D) Joint connection (connected on site)

(E) Water inlet thermistor TH22

(F) Pressure sensor (inner water) PS1

(G) Pressure sensor (outlet water) PS2

(H) Flow control valve FCV

(I)

Heat exchanger

(J)

Manual air purge valve

(K) Room temperature thermistor TH21

(I)

(K)

(C)

(A)

(E)

(F)

(H)

(D)

(B)

(J)

PS

(G)

PS

Capacity

PFFY-W20, 25, 32, 40, 50VCM-A

Water outlet

I.D. 20

Water inlet

I.D. 20

HWE18170.book 11 ページ２０１９年５月８日　水曜日　午前１０時３２分

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Содержание CITY MULTI PFFY-W20VCM-A

Страница 1: ......

Страница 2: ...refrigerant that is indicated on the unit when install ing or relocating the unit Infiltration of any other types of refrigerant or air into the unit may adversely affect the refrigerant cycle and may cause the pipes to burst or explode Consult your dealer or a qualified technician when moving or reinstall ing the unit Improper installation may result in water leakage electric shock or fire After ...

Страница 3: ...ii HWE18170 GB HWE18170 book ii ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 4: ...est points on the control board 17 5 Setting of Dip switch at delivery 18 6 Function setting 18 7 Selecting the external static pressure 19 8 Setting addresses 20 9 Setting of intermittent fan control 20 10 Function the LED of the indoor unit service board 20 11 Instructions for debris removal operation 21 12 Instructions for the air vent operation 21 VIII Disassembly Procedure 1 Disassembly Proce...

Страница 5: ...HWE18170 GB HWE18170 book 2 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 6: ...0 GB I Features 1 Features Model Cooling capacity Heating capacity kW PFFY W20VCM A 2 2 2 5 PFFY W25VCM A 2 8 3 2 PFFY W32VCM A 3 6 4 0 PFFY W40VCM A 4 5 5 0 PFFY W50VCM A 5 6 6 3 HWE18170 book 1 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 7: ... II Components and Functions 2 HWE18170 GB II Components and Functions 1 Components and Functions 1 Indoor Main Unit A Air A A HWE18170 book 2 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 8: ...CM A PFFY W32VCM A Power source 220 240V 50Hz 60Hz Cooling capacity 1 kW 2 2 2 8 3 6 Heating capacity 1 2 5 3 2 4 0 Power consumption Cooling kW 0 022 0 029 0 035 Heating 0 022 0 029 0 035 Current Cooling A 0 25 0 33 0 38 Heating 0 25 0 33 0 38 External finish Galvanized steel plate Dimension Height 2 mm 615 690 Width 700 Depth 200 Net weight kg 18 5 18 5 19 Heat exchanger Cross fin Aluminum fin a...

Страница 9: ...PFFY W50VCM A Power source 220 240V 50Hz 60Hz Cooling capacity 1 kW 4 5 5 6 Heating capacity 1 5 0 6 3 Power consumption Cooling kW 0 038 0 062 Heating 0 038 0 062 Current Cooling A 0 38 0 52 Heating 0 38 0 52 External finish Galvanized steel plate Dimension Height 2 mm 615 690 Width 900 Depth 200 Net weight kg 23 23 Heat exchanger Cross fin Aluminum fin and copper tube Fan Type x Quantity Sirocco...

Страница 10: ...MPa 0 25 x Vout V 0 125 Pressure psi 0 25 x Vout V 0 125 x 145 GND Black Vout White Vcc DC5V Red Connector PS1 1 3 2 1 2 3 Component Sym bol PFFY W40VCM A PFFY W50VCM A Room temperature thermistor TH21 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Water inlet pipe thermistor TH22 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Water outlet pi...

Страница 11: ... is for PFFY W40 50VCM A models which have 3 fans PFFY W20 25 32VCM A models have 2 fans D E F A C B 900 1 Water pipe PFFY W40 50VCM A 956 756 1002 802 800 600 9 7 700 PFFY W20 25 32VCM A Model ø22 ø22 860 660 From HBC Hydro unit 2 Water pipe To HBC Hydro unit A B Wall mounting hole pitch C 23 51 100 100 E 1 F D Duct 30 20 2 E ø2 9 holes 50 5 10 528 Wall mounting hole pitch 4 14 30 Slot Drain pipe...

Страница 12: ...nit Unit Maintenance space Maintenance space Top view Front view Secure enough access space to allow for the maintenance inspection and replacement of the motor fan heat exchanger drain pan and control box Maintenance access space HWE18170 book 7 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 13: ... 25 32VCM A models have 2 fans D E G H F A C B 900 1 Water pipe PFFY W40 50VCM A 956 756 1002 802 800 600 9 7 930 730 900 700 700 PFFY W20 25 32VCM A Model ø22 ø22 860 660 J 950 750 From HBC Hydro unit 2 Water pipe To HBC Hydro unit H B Wall mounting hole pitch C 23 51 100 100 E 1 F D Duct 30 20 2 E ø2 9 holes 50 5 10 528 Wall mounting hole pitch 4 14 30 Slot Drain pipe O D ø32 2 2 ø2 9 holes 150 ...

Страница 14: ...it Unit Maintenance space Maintenance space Top view Front view Secure enough access space to allow for the maintenance inspection and replacement of the motor fan heat exchanger drain pan and control box Maintenance access space HWE18170 book 9 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 15: ...ng to the local regulations 3 Earth leakage circuit breaker should be set up on the wiring of the power supply SYMBOL SYMBOL EXPLANATION NAME Power source terminal block Transmission terminal block Transmission terminal block Thermistor inlet air temp detection Thermistor piping temp detection inlet water Thermistor piping temp detection outlet water TB2 TB5 TB15 TH21 TH22 TH23 CN32 Connector Remo...

Страница 16: ...connection connected on site E Water inlet thermistor TH22 F Pressure sensor inner water PS1 G Pressure sensor outlet water PS2 H Flow control valve FCV I Heat exchanger J Manual air purge valve K Room temperature thermistor TH21 I K C A E F H D B J PS G PS Capacity PFFY W20 25 32 40 50VCM A Water outlet I D 20 Water inlet I D 20 HWE18170 book 11 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 17: ...inals with a tester Refer to the next page for details Normal Abnormal 4 3kΩ 9 6kΩ Open or short Refer to the thermistor characteristic graph below Low temperature thermistor Room temperature thermistor TH21 Water inlet thermistor TH22 Water outlet thermistor TH23 Thermistor R0 15 kΩ 3 Multiplier of B 3480 kΩ 2 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 2kΩ 30 C 4 3kΩ 40 C 3 0kΩ A Temperature C B Resis...

Страница 18: ...eration The output pulse changes in the following order When the valve closes 1 2 3 4 1 When the valve opens 4 3 2 1 4 A Yellow G Orange B White H Purple C Black I Control board D Brown J Connection CN60 E Green K Drive circuit F Blue L Flow control valve Output phase number Output status 1 2 3 4 4 ON ON OFF OFF 5 OFF ON ON OFF 7 OFF OFF ON ON 8 ON OFF OFF ON M L I A B C D E F G H J K 5 3 2 1 4 6 ...

Страница 19: ...PS1 Pressure sensor outlet water PS2 1 Check that the pressure sensor is connected 2 Check the pressure sensor wiring for breakage a Close b Open c Fully open valve 85 pulses d Fully close valve 770 pulses e No of pulses f Valve opening degree b a d f e c HWE18170 book 14 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 20: ...nal Get the motor to make a full rotation or more and measure the voltage at the test point VFG same with the voltage between fan connector 7 and 4 Is the fan motor connector CNMF1 fully inserted Is the voltage within the normal range Replace the motor Are 0VDC and 15VDC displayed alternately Check the power supply Measure the voltage at the indoor control board 310 340VDC same with the voltage be...

Страница 21: ...ach field work Refer to install manual of outdoor unit operate the address setting 3 Setting the address is combination of SW11 1st digit address setting and SW12 2nd digit address setting Address 3 setting is composed SW11 3 and SW12 0 Address 25 setting is composed SW11 5 and SW12 2 SW22 0 1 2 3 4 5 6 7 8 9 A BCDE F 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Indoor unit control board SW4 SW2 SW1 SW...

Страница 22: ...tem perature CN20 Thermistor Inlet air temperature CNMF1 Fan motor output 1 4 294 340 VDC 5 4 15 VDC 6 4 0 6 5 VDC 7 4 Stop 0 or 15 VDC Run 7 5 VDC 0 15 pulse CNSA Pressure sensor inner water CNSB Pressure sensor outlet water CN8A Flow control valve FCV 1 VFG Voltage on 3 of PC352 and the side of C081 Same with the voltage between 7 and 4 of CNMF VCC Voltage between the C084 pins 15 VDC Same with ...

Страница 23: ... 9 10 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 7 8 ON 1 2 3 4 ON OFF ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 7 8 ON 1 2 3 4 ON OFF ON 1 2 3 4 5 6 7 8 9 10 The figure at left shows that the switches 1 through 5 are set to ON and 6 through 10 are set to OFF Switch position Function Switch setting ON OFF 1 Active Thermistor Intake air thermistor Built in ther...

Страница 24: ...essure settings for the unit to that for the duct To set the external static pressure with the switches on the control board To set the external static pressure from the function selection screen on the remote controller Follow the instructions below and the instructions detailed in the remote controller manual for how to set the switches 1 Set the function setting No 32 Switch setting Function se...

Страница 25: ...en shipped from the factory These switches can be used to set unit addresses and branch numbers at will The determination of indoor unit addresses varies with the system at site Set them referring to the Data Book 9 Setting of intermittent fan control When the unit is used in a high temperature and humidity environment set the function setting No 119 to 2 Default setting 1 10 Function the LED of t...

Страница 26: ...r to the figure below for the position of the air vent valve on the indoor unit 12 Instructions for the air vent operation Details are described in the Instructions for the air vent operation section in the Troubleshooting chapter of the Service Handbook for the HBC or hydro unit Refer to the figure below for the position of the air vent valve on the indoor unit A A Air vent valve A A Air vent val...

Страница 27: ...Dip switch SW22 Function setting Rotary switches SW11 12 Address setting Rotary switch SW14 Branch port setting 2 Connection check of the lead wires listed below which are connected to the controller board Power supply lead wire Network remote controller transmission lead wire Fan motor lead wire FCV lead wire Pressure sensor inner water lead wire Pressure sensor outlet water lead wire Inlet air t...

Страница 28: ...or Intake air Exercise caution when removing heavy parts 1 Remove the control box cover with procedure 1 1 2 Remove the thermistor 1 Pull out the thermistor holder B and thermistor C on the control box Fig 3 C B HWE18170 book 23 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 29: ... Fig 4 3 Remove the fixing screws on the control box F to re move it Fig 5 Fig 5 4 Removing the drain pan 1 Pull out the drain pan in the direction of the arrow 1 Fig 6 Fig 6 Note Drain the water out of the drain pan before removing it To avoid dew condensation use insulated screws in the places marked with circles in Fig 7 Fig 7 D E F 1 D a a Insulation material HWE18170 book 24 ページ２０１９年５月８日水曜日...

Страница 30: ...e the front plate E with procedure 1 3 2 Remove the control box F with procedure 1 3 3 Pull out the drain pan with procedure 1 3 4 Remove a fixing screw on the heat exchanger cover G to remove it Fig 8 Fig 8 5 Remove the thermistor H from the thermistor holder J on the copper tube Fig 9 Thermistor size Water inlet ø8mm Water outlet ø6mm Fig 9 G H J HWE18170 book 25 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 31: ...emove the front plate K to remove it Fig 10 Fig 10 2 Removing the fan casing bottom half 1 Squeeze the tabs on the fan casing to remove it in the di rection of arrow 2 Fig 11 3 Removing the motor cable 1 Remove the motor cable threw the rubber bush Fig 11 4 Removing the fan motor and the Sirocco fan 1 Remove the two motor fixing screws to remove the motor and the Sirocco fan in the direction of ar...

Страница 32: ...ls only Be careful removing heavy parts 1 Removing the bearing 1 Remove the two fixing screws on the bearing cover M to remove it Fig 14 Fig 14 2 Remove the two bearing retainer screws to remove the bearing Fig 15 Fig 15 M HWE18170 book 27 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 33: ... Remove the control box F with procedure 1 3 4 Pull out the drain pan with procedure 1 3 2 Remove the heat exchanger cover 1 Remove the heat exchanger cover G with procedure 1 4 3 Removing the cover 1 Remove the three fixing screws on the cover N to re move it Fig 16 Fig 16 4 Removing the Heat exchanger 1 Remove the fixing screws on the heat exchanger P to remove it Fig 17 18 Fig 17 Fig 18 Removed...

Страница 34: ...Fig 20 Fig 21 5 Removing the pressure sensor 1 Debraze the brazed portion of the pressure sensors in the Fig 22 23 and then replace the pressure sensors with service parts c and d in the figures Fig 22 Note Before brazing remove the FCV according to the proce dures explained in the next section Fig 23 a b c d HWE18170 book 29 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 35: ...ring with a new one 6 Check the nipple grooves for dirt If dirty wipe them clean 7 Check the inner surface of the FCV and the inlet outlet piping for dirt If dirty wipe them clean 8 Before attaching the O ring to the nipple apply a light coating of the grease that is listed in the service parts list evenly to the entire O ring 9 Before inserting the nipple with the O ring into the FCV and the inle...

Страница 36: ... VIII Disassembly Procedure 31 HWE18170 GB 8 Control box inside layout Transmission terminal bed AC reactor W50 model only Power source terminal bed HWE18170 book 31 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 37: ...18170 GB 9 Sensor position Water inlet sensor Water outlet sensor PFFY W20 25VCM A Water inlet sensor Water outlet sensor PFFY W32VCM A PFFY W40 50VCM A Water inlet sensor Water outlet sensor HWE18170 book 32 ページ２０１９年５月８日水曜日午前１０時３２分 ...

Страница 38: ......

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