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Mitsubishi Electric City Multi PEFY-WP15VMS1-E, Service Manual

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Mitsubishi Electric City Multi PEFY-WP15VMS1-E Service Manual Download Page 14

[ 

VI 

 Refrigerant System Diagram ]

- 10 -

HWE12090

GB

VI 

Refrigerant System Diagram

[1] Refrigerant system diagram

(A)

Water outlet thermistor TH23

(B)

Water outlet

(C)

Water inlet

(D)

Screw connections

(E)

Water inlet thermistor TH22

(F)

Heat exchanger

(G)

Manual air purge valve

(H)

Room temperature thermistor TH21

Capacity

PEFY-WP15, 20, 25, 32, 40, 50VMS1-E

Water outlet

Rc3/4 screw

Water inlet

Rc3/4 screw

(F)

(H)

(C)

(A)

(E)

(D)

(B)

(G)

HWE12090.book  10 ページ  ２０１３年２月２２日　金曜日　午後１時３０分

Summary of Contents for City Multi PEFY-WP15VMS1-E

Page 1: ...Air Conditioners TECHNICAL SERVICE MANUAL Models PEFY WP15VMS1 E PEFY WP20VMS1 E PEFY WP25VMS1 E PEFY WP32VMS1 E PEFY WP40VMS1 E PEFY WP50VMS1 E 2013 ...

Page 2: ...SHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant Ask your dealer or a qualified technician to install the unit Improper installation by the user may result in water leak age electric shock or fire Properly install the unit on a surface that can withstand its weight Unit installed on an unstable surface may fal...

Page 3: ...mpleting the service work check for a refrigerant leak If leaked refrigerant is exposed to a heat source such as a fan heater stove or electric grill toxic gases will be gener ated Do not try to defeat the safety features of the unit Forced operation of the pressure switch or the temperature switch by defeating the safety features for these devices or the use of accessories other than the ones tha...

Page 4: ...I Troubleshooting 1 Troubleshooting 11 1 Check methods 11 2 DC fan motor fan motor indoor control board 13 3 Address switch setting 14 4 Voltage test points on the control board 15 5 Dipswitch setting Factory setting 16 6 Instructions for debris removal operation 18 7 Instructions for the air vent operation 18 VIII Disassembly Procedure 1 Disassembly Procedure 19 1 Control box 19 2 Thermistor Inta...

Page 5: ...E12090 GB I Features 1 Features Model Cooling capacity Heating capacity kW PEFY WP15VMS1 E 1 7 1 9 PEFY WP20VMS1 E 2 2 2 5 PEFY WP25VMS1 E 2 8 3 2 PEFY WP32VMS1 E 3 6 4 0 PEFY WP40VMS1 E 4 5 5 0 PEFY WP50VMS1 E 5 6 6 3 ...

Page 6: ... II Components and Functions 2 HWE12090 GB II Components and Functions 1 Components and Functions 1 Indoor Main Unit A Air A A ...

Page 7: ... Heating kW 0 030 0 031 0 040 Current consumption 2 Cooling A 0 44 0 49 0 51 Heating A 0 33 0 38 0 40 External finish Munsel No Galvanized Dimensions Height mm 200 Width mm 790 Depth mm 700 Net weight kg 19 20 Heat exchanger Cross fin Aluminium fin and cupper tube Fan Type Sirocco fan x 2 Airflow rate Low Mid High m3 min 5 0 6 0 7 0 5 5 6 5 8 0 5 5 7 0 9 0 External static pressure Pa 5 15 35 50 5 ...

Page 8: ...77 Heating A 0 50 0 62 0 66 External finish Munsel No Galvanized Dimensions Height mm 200 Width mm 990 1190 Depth mm 700 Net weight kg 25 27 Heat exchanger Cross fin Aluminium fin and cupper tube Fan Type Sirocco fan x 3 Sirocco fan x 4 Airflow rate Low Mid High m3 min 8 0 9 5 11 0 9 5 11 0 13 0 12 0 14 0 16 5 External static pressure Pa 5 15 35 50 5 15 35 50 5 15 35 50 Motor Output kW 0 096 Air f...

Page 9: ...mission terminal block TB5 TB15 1 2 M1 M2 S 250V 20A Drain float switch DS Open short detection Initial contact resistance 500 m or less Component Sym bol PEFY WP32VMS1 E PEFY WP40VMS1 E PEFY WP50VMS1 E Room temperature thermistor TH21 Resistance 0 C 15k 10 C 9 6k 20 C 6 3k 25 C 5 4k 30 C 4 3k 40 C 3 0k Water inlet pipe therm istor TH22 Resistance 0 C 15k 10 C 9 6k 20 C 6 3k 25 C 5 4k 30 C 4 3k 40...

Page 10: ...rew To HBC unit From HBC unit 1198 998 A Model PEFY WP15VMS1 E 1152 952 B 1100 900 C 1060 860 D 11 9 E 1000 800 F G 57 15 700 150 Duct 200 23 677 23 90 20 C D Duct A M L 49 625 Suspension bolt pitch 23 B Suspension bolt pitch 270 48 270 170 10 100 100 E 1 F 30 25 100 25 20 100 100 H J 12 88 37 100 37 88 12 157 5 20 G 10 Water pipe 1 Watetr pipe 2 Less than 300mm 65 0 10 Less than 550mm accessory D...

Page 11: ... the maintenance inspection and replacement of the motor fan drain pump heat exchanger and electric box in one of the following ways Select an installation site for the indoor unit so that its maintenance access space will not be obstructed by beams or other objects 1 When a space of 300mm or more is available below the unit between the unit and the ceiling Fig 1 Create access door 1 and 2 450x450...

Page 12: ...SW11 1s digit SW1 A B I B 3 1 1 2 3 4 5 5 4 1 8 5 4 1 8 1 2 3 4 5 8 1 4 5 3 4 5 1 2 MS 3 8 7 6 5 4 3 2 1 4 3 2 1 1 M 4 2 3 1 1 3 2 4 1 2 1 4 5 6 7 3 1 1 3 5 1 2 1 3 2 4 8 1 3 2 4 5 6 7 1 3 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 IT terminal PAC IT51AD E IT terminal PAC IT52AD E CN52 Green CN100 CN51 CN100 CN100 IT terminal CN82 CN43 L1 t t U LED1 LED2 DC310 340V Rec...

Page 13: ...ock CN90 Connector Wireless SW11 A B Switch For setting the 1 s digit in the address FUSE Fuse AC 250V 6 3A CN100 Connector IT terminal SW12 A B Switch For setting the 10 s digit in the address ZNR01 02 Varistor FS Float switch SW14 A B Switch connection No set ting DSA Arrester TH21 Thermistor inlet air SWA A B Switch static pressure set ting X1 Aux relay TH22 Thermistor water in SWB A B Switch f...

Page 14: ...diagram A Water outlet thermistor TH23 B Water outlet C Water inlet D Screw connections E Water inlet thermistor TH22 F Heat exchanger G Manual air purge valve H Room temperature thermistor TH21 Capacity PEFY WP15 20 25 32 40 50VMS1 E Water outlet Rc3 4 screw Water inlet Rc3 4 screw F H C A E D B G ...

Page 15: ...otor fan motor indoor control board 3 Drain up mechanism Measure the resistance between the terminals with a tester coil temperature 20 C Normal Abnormal 4 3k 9 6k Open or short Refer to the thermistor characteristic graph below Low temperature thermistor Room temperature thermistor TH21 Water inlet pipe thermistor TH22 Water outlet pipe thermistor TH23 Drain sensor DS Thermistor R0 15 k 3 Multipl...

Page 16: ...switch CN4F Disconnect the connector and measure the resistance between terminals with a tester A Moving part B Switch C Magnet Position of the moving part Normal Abnormal Up Short any position but short Down Open any position but open 1 2 3 4 A A B C ...

Page 17: ...sition thermistor signal 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 CNMF 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...

Page 18: ...er is used On site address setting is required for the indoor units to run 2 Address settings vary in different systems Refer to the section on address setting in the outdoor unit installation manual 3 Address is set with a combination of SW12 10 s digit and SW11 1 s digit To set the address to 3 set SW12 to 0 and SW11 to 3 To set the address to 25 set SW 12 to 2 and SW 11 to 5 A Indoor unit contr...

Page 19: ...A terminal A CN44 Thermistor water inlet water out let temperature CN4F Float thermistor CN20 Thermistor Inlet temperature CN3C Indoor outdoor transmission 0 24VDC CNMF Fan motor output 1 4 310 340 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 CNP Drain up mechanism output 200VAC 1 VFG Voltage on the side of PC941 and C25 Same with the voltage between 7 and 4 of CNMF VCC...

Page 20: ...etection Available Unavailable 3 Filter life 2500 hr 100 hr 4 Outdoor air intake Enabled Disabled 5 Remote display Thermo ON signal Fan output 6 Humidifier operation During heating mode During heating operation 7 Fan speed Low Very low 8 Fan speed at heating Thermo OFF Preset fan speed Follows the setting of SW1 7 9 Auto restart after power failure Enabled Disabled 10 Power start stop Enabled Disa...

Page 21: ... static pressure 1 SWA SWC 1 Address board Note Changes that are made to the dipswitches SWA and SWC immediately become effective regardless of the unit s operation status RUN STOP or the remote controller status ON OFF 5 1 s and 10 s digits 1 SW11 SW12 Rotary switch The use of a network remote controller PAR F27MEA requires address setting 1 Address board Address settings must be made while the u...

Page 22: ...ils are described in section 9 Instructions for debris removal operation under chapter IX Troubleshooting in the Service Handbook for the HBC Refer to the figure below for the position of the air vent valve on the indoor unit 7 Instructions for the air vent operation Details are described in section 9 Instructions for debris removal operation under chapter IX Troubleshooting in the Service Handboo...

Page 23: ... 19 HWE12090 GB VIII Disassembly Procedure 1 Disassembly Procedure 1 Control box Exercise caution when removing heavy parts 1 Removing the control box cover 1 Remove the two fixing screws on the cover A to remove it Fig 1 Fig 2 A ...

Page 24: ...en removing heavy parts 1 Remove the control box cover according to the procedure in section 1 2 Remove the thermistor 1 Remove the two fixing screws on the metal base B to re move it Fig 3 2 Pull out the thermistor holder C and thermistor D on the control box Fig 4 B C D P63 model only ...

Page 25: ...filter in the direction of the arrow 1 2 Remove the fixing screws on the bottom plate D E to remove it Fig 5 2 Removing the drainpan 1 Pull out the drain pan in the direction of the arrow 1 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 Figure 7 Fig 7 a Insulation material D a a a a E a E ...

Page 26: ... the drain pan according to the procedure in sec tion 3 2 Removing the Heat exchanger cover 1 Remove the four fixing screws on the heat exchanger cov er F to remove it Fig 8 3 Removing the thermistor 1 Remove the thermistor G from the thermistor holder H on the copper tube Thermistor size Water in ø8mm Water out ø6mm Fig 9 HEX F H G ...

Page 27: ...ing metal 1 Remove the two fixing screws on the punching metal K to remove it Fig 11 3 Removing the fan casing bottom half 1 Squeeze the tabs on the fan casing to remove it in the di rection of arrow 2 4 Removing the motor cable 1 Remove the motor cable threw the rubber bush 5 Removing the fan motor and the Sirocco fan 1 Remove the two motor fixing screws to remove the motor and the Sirocco fan in...

Page 28: ... Bearing P40 P50 P63 models only Exercise caution when removing heavy parts 1 Removeing the bearing 1 Remove the two fixing screws on the bearing cover M to remove it Fig 14 2 Remove the two bearing retainer screws to remove the bearing Fig 15 M ...

Page 29: ...ccording to the procedure in section 3 2 Remove the heat exchanger cover according to the proce dure in section 4 2 3 Removing the cover 1 Remove the two fixing screws on the cover T to remove it Fig 16 T Pipe support plate 4 Removing the Heat exchanger 1 Remove the fixing screws on the heat exchanger S to re move it Fig 17 T S ...

Page 30: ... heavy parts 1 Remove the drain pan according to the procedure in section 3 2 Removing the air vent pipe 1 Remove the air vent pipe a from the cable strap b Fig 18 3 Removing the drain pump 1 Remove the four screws that are holding the drain pump and the float switch in place Fig 19 a b ...

Page 31: ...he procedure in section 3 2 Removing the air vent pipe 1 Remove the air vent pipe a from the cable strap b Fig 20 3 Removing the drain pump 1 Remove the four screws that are holding the drain pump and the float switch in place Fig 21 4 Removing the float switch 1 Remove the two screws that are holding the float switch in place Fig 22 a b ...

Page 32: ...Feb 2013 HWE12090 Printed in Japan New publication effective Feb 2013 Specifications subject to change without notice ...

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