Mitsubishi Electric CITY MULTI PEFY-WP10VMS1-E Manuale operativo

Air-Conditioners

TECHNICAL & SERVICE MANUAL

Models PEFY-WP10VMS1-E

PEFY-WP15VMS1-E

PEFY-WP20VMS1-E

PEFY-WP25VMS1-E

PEFY-WP32VMS1-E

PEFY-WP40VMS1-E

PEFY-WP50VMS1-E

2017

2nd edition

HWE1209A GB

Safety Precautions

Read before installation and performing electrical work

Symbol explanations

Thoroughly read the following safety precautions prior to installation.

Observe these safety precautions for your safety.

This equipment may have adverse effects on the equipment on the same power supply system.

Contact the local power authority before connecting to the system.

WARNING

This symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or death.

CAUTION

This symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or dam-

age to the unit.

Indicates an action that must be avoided.

Indicates important instructions.

Indicates a parts that requires grounding.

Indicates that caution must be taken with rotating parts. (This symbol is on the main unit label.) <Color: Yellow>

Indicates that the parts that are marked with this symbol pose a risk of electric shock. (This symbol is on the main

unit label.) <Color: Yellow>

WARNING

Carefully read the labels affixed to the main unit.

WARNING

Do not use refrigerant other than the type indicated in the

manuals provided with the unit and on the nameplate.

Doing so may cause the unit or pipes to burst, or result in explosion

or fire during use, during repair, or at the time of disposal of the unit.

It may also be in violation of applicable laws.

MITSUBISHI 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 fall and cause injury.

Only use specified cables. Securely connect each cable so

that the terminals do not carry the weight of the cable.

Improperly connected cables may produce heat and start a fire.

Take appropriate safety measures against wind gusts and

earthquakes to prevent the unit from toppling over.

Improper installation may cause the unit to topple over and

cause injury or damage to the unit.

Only use accessories (i.e., air cleaners, humidifiers, electric

heaters) recommended by Mitsubishi Electric.

Do not make any modifications or alterations to the unit.

Consult your dealer for repair.

Improper repair may result in water leakage, electric shock,

or fire.

Do not touch the heat exchanger fins with bare hands.

The fins are sharp and pose a risk of cuts.

Properly install the unit according to the instructions in the

Installation Manual.

Improper installation may result in water leakage, electric

shock, or fire.

Have all electrical work performed by an authorized electri-

cian according to the local regulations and the instructions

in this manual. Use a dedicated circuit.

Insufficient power supply capacity or improper installation

of the unit may result in malfunctions of the unit, electric

shock, or fire.

HWE1209A.book i ページ２０１７年３月９日　木曜日　午後５時３７分

HWE1209A GB

Precautions for handling units for use with water

WARNING

Keep electrical parts away from water.

Wet electrical parts pose a risk of electric shock, smoke, or

fire.

Securely attach the control box cover.

If the cover is not installed properly, dust or water may infil-

trate and pose a risk of electric shock, smoke, or fire.

Only use the type of refrigerant that is indicated on the unit

when installing 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 reinstalling the unit.

Improper installation may result in water leakage, electric

shock, or fire.

After completing 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 that are recom-

mended by Mitsubishi Electric may result in smoke, fire, or

explosion.

Consult your dealer for proper disposal method.

CAUTION

Do not use the existing water piping.

Store the piping materials indoors, and keep both ends of

the pipes sealed until immediately before installation. Keep

the joints wrapped in plastic bags. If dust or dirt enters the

water circuit, it may damage the heat exchanger and cause

water leakage.

Only use water.

Only use clean water as a refrigerant. The use of water out-

side the specification may damage the refrigerant circuit.

HWE1209A.book ii ページ２０１７年３月９日　木曜日　午後５時３７分

CONTENTS

HWE1209A GB

I Features

[1] Features.................................................................................................................................... 1

II Components and Functions

[1] Components and Functions...................................................................................................... 2

III Specfications

[1] Specifications............................................................................................................................ 3

1.Specfications .......................................................................................................................... 3

2.Electrical component specifications........................................................................................ 5

IV Outlines and Dimensions

[1] Outlines and Dimensions.......................................................................................................... 6

V Wiring Diagram

[1] Wiring Diagram ......................................................................................................................... 8

VI Refrigerant System Diagram

[1] Refrigerant system diagram.................................................................................................... 10

VII 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 (Intake air) .......................................................................................................... 20

3.Drainpan ............................................................................................................................... 21

4.Thermistor (Water outlet) (Water inlet) ................................................................................. 22

5.Fan and fan motor ................................................................................................................ 23

6.Bearing ................................................................................................................................. 24

7.Heat exchanger .................................................................................................................... 25

8.Drain pump ........................................................................................................................... 26

9.Float Switch .......................................................................................................................... 27

HWE1209A.book 1 ページ２０１７年３月９日　木曜日　午後５時３７分

[ I Features ]

- 1 -

HWE1209A GB

I Features

[1] Features

Model Cooling capacity/Heating capacity

PEFY-WP10VMS1-E 1.2/1.4

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

HWE1209A.book 1 ページ２０１７年３月９日　木曜日　午後５時３７分

[ II Components and Functions ]

- 2 -

HWE1209A GB

II Componen ts and Function s

[1] Components and Functions

1. Indoor (Main) Unit

(A) Air

(A)

HWE1209A.book 2 ページ２０１７年３月９日　木曜日　午後５時３７分

[ III Specfications ]

- 3 -

HWE1209A GB

III Specfications

[1] Specifications

1. Specfications

*1 <Cooling> Indoor temperature: 27°CDB/19°CWB (81°FDB/66°FWB Outdoor temperature: 35°CDB (95°FDB)

<Heating> Indoor temperature: 20°CDB (68°FDB) Outdoor temperature: 7°CDB/6°CWB (45°FDB/43°FWB)

*2 The external static pressure is set to 15Pa at factory shipment.

Model PEFY-

WP10VMS1-E

PEFY-

WP15VMS1-E

PEFY-

WP20VMS1-E

PEFY-

WP25VMS1-E

Power supply Voltage V 220-240

Frequency Hz 50/60

Cooling capacity *1 kW 1.2 1.7 2.2 2.8

Heating capacity *1 kW 1.4 1.9 2.5 3.2

Power consumption *2 Cooling kW 0.030 0.050 0.051 0.060

Heating kW 0.030 0.030 0.031 0.040

Current consumption *2 Cooling A 0.22 0.44 0.49 0.51

Heating A 0.21 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 4.0-4.5-5.0 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 5/15/35/50 5/15/35/50 5/15/35/50

Motor Output kW 0.096

Air filter PP Honeycomb fabric (washable)

Diameter of

water pipe

Inlet in Rc3/4 screw

Outlet in Rc3/4 screw

Drain pipe dimensions mm [in.] O.D. 32 [1-1/4]

Operating noise

(Low-Mid-High)

5Pa dB (A) 20-21-22 22-24-26 22-25-28 23-25-29

15Pa 20-23-25 22-24-28 22-25-29 24-26-30

35Pa 23-24-25 24-26-29 25-27-30 25-28-31

50Pa 23-25-27 24-27-30 25-28-32 25-29-33

HWE1209A.book 3 ページ２０１７年３月９日　木曜日　午後５時３７分

[ III Specfications ]

- 4 -

HWE1209A GB

*1 <Cooling> Indoor temperature: 27°CDB/19°CWB (81°FDB/66°FWB Outdoor temperature: 35°CDB (95°FDB)

<Heating> Indoor temperature: 20°CDB (68°FDB) Outdoor temperature: 7°CDB/6°CWB (45°FDB/43°FWB)

Model PEFY-WP32VMS1-E PEFY-WP40VMS1-E PEFY-WP50VMS1-E

Power supply Voltage V 220-240

Frequency Hz 50/60

Cooling capacity *1 kW 3.6 4.5 5.6

Heating capacity *1 kW 4.0 5.0 6.3

Power consumption Cooling kW 0.071 0.090 0.090

Heating kW 0.051 0.070 0.070

Current consumption Cooling A 0.61 0.73 0.77

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 filter PP Honeycomb fabric (washable)

Diameter of

water pipe

Inlet in Rc3/4 screw

Outlet in Rc3/4 screw

Drain pipe dimensions mm [in.] O.D. 32 [1-1/4]

Operating noise

(Low-Mid-High)

5Pa dB (A) 26-29-32 29-31-34 29-32-35

15Pa 28-30-33 30-32-35 30-33-36

35Pa 30-32-35 31-34-37 31-35-39

50Pa 31-33-36 32-34-38 32-36-40

HWE1209A.book 4 ページ２０１７年３月９日　木曜日　午後５時３７分

[ III Specfications ]

- 5 -

HWE1209A GB

2. Electrical component specifications

Component Sym-

bol

PEFY-

WP10VMS1-E

PEFY-

WP15VMS1-E

PEFY-

WP20VMS1-E

PEFY-

WP25VMS1-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°C/3.0k

Water outlet pipe

thermistor

TH23 Resistance 0°C/15k , 10°C/9.6k , 20°C/6.3k , 25°C/5.4k , 30°C/4.3k , 40°C/3.0k

Fuse FUSE 250V 6.3A

Fan motor 8-pole, Output 96W SIC-70CW-D8114-1

Power supply terminal

block

TB2 (L, N, ) 330V 30A

Transmission 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°C/3.0k

Water outlet pipe

thermistor

TH23 Resistance 0°C/15k , 10°C/9.6k , 20°C/6.3k , 25°C/5.4k , 30°C/4.3k , 40°C/3.0k

Fuse FUSE 250V 6.3A

Fan motor 8-pole, Output 96W SIC-70CW-D896-2

Power supply terminal

block

TB2 (L, N, ) 330V 30A

Transmission 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

HWE1209A.book 5 ページ２０１７年３月９日　木曜日　午後５時３７分

[ IV Outlines and Dimensions ]

- 6 -

HWE1209A GB

IV Outlines and Dimensions

[1] Outlines and Dimensions

1. PEFY-WP10, 15, 20, 25, 32, 40, 50VMS1-E

Unit : mm

116

10 102

Water pipe(To HBC unit)

Rc3/4 screw

Water pipe(From HBC unit)

Air

outlet Air

inlet

(O.D.

32)

Drain pipe

Drain pump

Terminal bed(Transmission)

Drain pipe(O.D.

32)

(Spontaneous draining)

Terminal bed(Power source)

Suspension bolt hole

4-14×30 Slot

Air filter

Control box

E-

2.9

K-

2.9

Knockout hole

(Power source wiring)

(Transmission wiring)

PEFY-WP50VMS1-E

PEFY-WP40VMS1-E

PEFY-WP32VMS1-E

PEFY-WP25VMS1-E

PEFY-WP20VMS1-E

1190

990

790

1239

1039

839

900

700

500

1060

860

660

LJHK

700 752 798 660 7 600

Rc3/4 screw

(To HBC unit)

(From HBC unit)

1198

998

Model

PEFY-WP15VMS1-E

PEFY-WP10VMS1-E

1152

952

1100

900

1060

860

1000

800

700

150(Duct)

200

23 677

D (Duct)

49 625(Suspension bolt pitch)

23 B (Suspension bolt pitch)

270

170

100

(E-1)=F

100

100×H=J

37 100 37

157.5

20 G

Water pipe

Watetr pipe

Less than 300mm

-10

Less than 550mm

Drain

hose

(I.D. 32)

(Actual length)

(A) Space required for service and maintenance.

(B) Provide an access door for maintenance at the bottom.

Note 1 Use M10 screw for the suspension bolt (field supply).

2 Keep the service space for the maintenance at the bottom.

3 This chart indicates for PEFY-WP32, 40VMS1-E models, which has 3 fans.

PEFY-WP10, 15, 20, 25VMS1-E models have 2 fans.

PEFY-WP50VMS1-E models have 4 fans.

4 In case an inlet duct is used, remove the air filter (supply with the unit), then install the filter (field supply) at

suction side.

HWE1209A.book 6 ページ２０１７年３月９日　木曜日　午後５時３７分

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