Mitsubishi Electric City Multi PEFY-WP15VMS1-E User manual

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

ii
HWE12090 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.
Onlyuseaccessories(i.e.,aircleaners,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.
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ii
HWE12090 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.
Infiltrationofany other typesofrefrigerant or airinto 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 featuresfor 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.
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CONTENTS
HWE12090 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
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[ I Features ]
- 1 -
HWE12090 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
HWE12090.book 1 ページ ２０１３年２月２２日 金曜日 午後１時３０分

[ II Components and Functions ]
- 2 -
HWE12090 GB
II Components and Functions
[1] Components and Functions
1. Indoor (Main) Unit
(A) Air
(A)
(A)
HWE12090.book 2 ページ ２０１３年２月２２日 金曜日 午後１時３０分

[ III Specfications ]
- 3 -
HWE12090 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-
WP15VMS1-E PEFY- WP20VMS1-E PEFY- WP25VMS1-E
Power supply Voltage V 220-240
Frequency Hz 50/60
Cooling capacity *1 kW 1.7 2.2 2.8
Heating capacity *1 kW 1.9 2.5 3.2
Power consumption *2 Cooling kW 0.050 0.051 0.060
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 5/15/35/50 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) 22-24-26 22-25-28 23-25-29
15Pa 22-24-28 22-25-29 24-26-30
35Pa 24-26-29 25-27-30 25-28-31
50Pa 24-27-30 25-28-32 25-29-33
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[ III Specfications ]
- 4 -
HWE12090 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
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[ III Specfications ]
- 5 -
HWE12090 GB
2. Electrical component specifications
Component Sym-
bol 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
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[ IV Outlines and Dimensions ]
- 6 -
HWE12090 GB
IV Outlines and Dimensions
[1] Outlines and Dimensions
1. PEFY-WP15, 20, 25, 32, 40, 50VMS1-E
Unit : mm
64
70116
10 102
Water pipe(To HBC unit)
Rc3/4 screw Rc3/4 screw
Water pipe(From HBC unit)
Air
outlet Air
inlet
(O.D.
ø
32)
Drain pipe
Drain pump
Terminal bed(Transmission)
Drain pipe(O.D.
ø
32)
(Spontaneous draining)
1
2
Terminal bed(Power source)
Suspension bolt hole
4-14×30 Slot
Air filter
Control box
2
×
E-
ø
2.9
2
×
2-
ø
2.9
K-
ø
2.9
Knockout hole
ø
27
Knockout hole
ø
27
(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
M
24
20
16
900
700
500
9
7
5
1060
860
660
LJHK
700 752 798 660 7 600
Rc3/4 screw
(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
FG
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>
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-WP15, 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.
HWE12090.book 6 ページ ２０１３年２月２２日 金曜日 午後１時３０分