Mitsubishi PEFY-P12NMAU-E, PEFY-P06NMAU-E, PEFY-P27NMAU-E, PEFY-P36NMAU-E, PEFY-P15NMAU-E Technical & Service Manual

Air-Conditioners

TECHNICAL & SERVICE MANUAL

2009

Models

PEFY-P06NMAU-E, PEFY-P27NMAU-E
PEFY-P08NMAU-E, PEFY-P30NMAU-E
PEFY-P12NMAU-E, PEFY-P36NMAU-E
PEFY-P15NMAU-E, PEFY-P48NMAU-E
PEFY-P18NMAU-E, PEFY-P54NMAU-E
PEFY-P24NMAU-E

For use with R410A, & R22

Safety Precautions

Read before installation and performing electrical work

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.

Symbol explanations

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

Ask your dealer or a qualified technician to install the unit.

Improper installation by the user may result in water leak­age, 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.

In the event of a refrigerant leak, thoroughly ventilate the
room.

If gaseous refrigerant leaks out and comes in contact with
an open flame, toxic gases will be generated.

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 electri­cian 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.

HWE09040 GB

ii

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 infil­trate 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.

When installing the unit in a small space, take appropriate
precautions to prevent leaked refrigerant from reaching the
limiting concentration.

Leaked refrigerant gas will displace oxygen and may cause
oxygen starvation. Consult your dealer before installing the
unit.

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 gener­ated.

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 recom­mended by Mitsubishi Electric may result in smoke, fire, or
explosion.

Consult your dealer for proper disposal method.

Do not use a leak detection additive.

Precautions for handling units for use with R410A

CAUTION

Do not use the existing refrigerant piping.

A large amount of chlorine that may be contained in the re­sidual refrigerant and refrigerator oil in the existing piping
may cause the refrigerator oil in the new unit to deteriorate.

Use refrigerant piping materials made of phosphorus deox­idized copper. Keep the inner and outer surfaces of the
pipes clean and free of such contaminants as sulfur, oxides,
dust, dirt, shaving particles, oil, and moisture.

Contaminants in the refrigerant piping may cause the refrig­erator oil to deteriorate.

Store the piping materials indoors, and keep both ends of
the pipes sealed until immediately before brazing. (Keep el­bows and other joints wrapped in plastic.)

Infiltration of dust, dirt, or water into the refrigerant system
may cause the refrigerator oil to deteriorate or cause the
compressor to malfunction.

Use a small amount of ester oil, ether oil, or alkyl benzene
to coat flares and flanges.

Infiltration of a large amount of mineral oil may cause the re­frigerator oil to deteriorate.

Charge the system with refrigerant in the liquid phase.

If gaseous refrigerant is drawn out of the cylinder first, the
composition of the remaining refrigerant in the cylinder will
change and become unsuitable for use.

Only use R410A.

The use of other types of refrigerant that contain chloride
may cause the refrigerator oil to deteriorate.

Use a vacuum pump with a check valve.

If a vacuum pump that is not equipped with a check valve is
used, the vacuum pump oil may flow into the refrigerant cy­cle and cause the refrigerator oil to deteriorate.

Prepare tools for exclusive use with R 410A. Do not use the
following tools if they have been used with the conventional
refrigerant: gauge manifold, charging hose, gas leak detec­tor, check valve, refrigerant charge base, vacuum gauge,
and refrigerant recovery equipment.

If the refrigerant or the refrigerator oil that may be left on these
tools are mixed in with R410A, it may cause the refrigerator oil
in the new system to deteriorate.
Infiltration of water may cause the refrigerator oil to deteriorate.
Leak detectors for conventional refrigerants will not detect an
R410A leak because R410A is free of chlorine.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of the refrigerant
in the cylinder will change and become unsuitable for use.

Exercise special care when handling tools for use with R410A.

Infiltration of dust, dirt, or water into the refrigerant system
may cause the refrigerator oil to deteriorate.

HWE09040 GB

ii

CONTENTS

I

II

III

IV

V

VI

VII

VIII

IX

Features

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

Components and Functions

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

Specifications

[1] Specifications............................................................................................................................ 4

1.Specifications.......................................................................................................................... 4

2.Electrical component specifications........................................................................................ 7

Outlines and Dimensions

[1] Outlines and Dimensions.......................................................................................................... 8

Wiring Diagram

[1] Wiring Diagram......................................................................................................................... 9

Refrigerant System Diagram

[1] Refrigerant system diagram.................................................................................................... 11

Microprocessor Control

[1] Microprocessor Control........................................................................................................... 12

1.Cool operation ...................................................................................................................... 12

2.Dry operation ........................................................................................................................ 13

3.Fan operation........................................................................................................................ 14

4.Heat operation ...................................................................................................................... 15

5.Auto operation [Automatic cool / heat change over operation] ............................................. 16

6.When unit is stopped control mode ...................................................................................... 17

7.Heater control ....................................................................................................................... 17

Troubleshooting

[1] Troubleshooting ...................................................................................................................... 21

1.Check methods..................................................................................................................... 21

2.DC fan motor (fan motor/indoor control board)..................................................................... 25

3.Address switch setting .......................................................................................................... 26

4.Voltage test points on the control board ............................................................................... 27

5.Dipswitch setting (Factory setting)........................................................................................ 28

Disassembly Procedure

[1] Disassembly Procedure.......................................................................................................... 31

1.Control box ........................................................................................................................... 31

2.Thermistor (Intake air) .......................................................................................................... 32

3.Drainpan ............................................................................................................................... 33

4.Thermistor (Gas pipe) (Liquid pipe) ...................................................................................... 34

5.Fan and fan motor ................................................................................................................ 35

6.Heat exchanger .................................................................................................................... 36

HWE09040 GB

HWE09040 GB

[ I Features ]

IFea tures

[1] Features

PEFY-P06NMAU-E 6000/6700 1.8/2.0

PEFY-P08NMAU-E 8000/9000 2.3/2.6

PEFY-P12NMAU-E 12000/13500 3.5/4.0

PEFY-P15NMAU-E 15000/17000 4.4/5.0

PEFY-P18NMAU-E 18000/20000 5.3/5.9

PEFY-P24NMAU-E 24000/27000 7.0/7.9

PEFY-P27NMAU-E 27000/30000 7.9/8.8

PEFY-P30NMAU-E 30000/34000 8.8/10.0

PEFY-P36NMAU-E 36000/40000 10.6/11.7

PEFY-P48NMAU-E 48000/54000 14.1/15.8

PEFY-P54NMAU-E 54000/60000 15.8/17.6

Model Cooling capacity/Heating capacity

BTU/h kW

HWE09040 GB

- 1 -

[ II Components and Functions ]

IIComponen ts and Functions

[1] Components and Functions

1. Indoor (Main) Unit

(1) In case of rear inlet (2) In case of bottom inlet

Air inlet

Air outlet

2. Remote Controller
[PAR-21MAA]

Once the operation mode is selected, the unit will remain in the selected mode until changed.

Air inlet

Air outlet

(1) Remote Controller Buttons

1 [Set Temperature] Button 7 [Vane Control] Button
2 [Timer Menu] Button 8 [Ventilation] Button

[Monitor/Set] Button [Operation] Button

3 [Mode] Button 9 [Check/Clear] Button

[Back] Button 10 [Test Run] Button

4 [Timer On/Off] Button 11 [Filter] Button

[Set Day] Button [ ] Button

5 [Louver] Button 12 [ON/OFF] Button

[Operation] Button 13 Position of built-in room thermistor

6 [Fan Speed] Button 14 [Set Time] Button

Keep the remote controller out of direct sunlight to ensure accurate measurement of room temperature.
The thermistor at the lower right-hand section of the remote controller must be free from obstructions to ensure accurate mea-

surement of room temperature.

HWE09040 GB

- 2 -

[ II Components and Functions ]

(2) Remote Controller Display

A Current time/Timer time I Louver swing

B Centralized control indicator J Ventilation

C Timer OFF indicator K Filter sign

D Timer mode indicator L Sensor position

E Operation mode display: COOL, DRY, AUTO,

M Room temperature

FAN, HEAT

F Function mode indicator N Vane setting

G Preset temperature O Fan speed

H Power indicator P Operation lamp

HWE09040 GB

- 3 -

[ III Specifications ]

III Specifications

[1] Specifications

1. Specifications

Model PEFY-P06NMAU-E PEFY-P08NMAU-E PEFY-P12NMAU-E PEFY-P15NMAU-E

Power source 1-phase 208/230V 60Hz
Cooling capacity *1 BTU / h 6,000 8,000 12,000 15,000
(Nominal) *1 kW 1.8 2.3 3.5 4.4

Power input kW 0.06 0.06 0.09 0.09

Current input A 0.56 0.56 0.66 0.67
Heating capacity *2 BTU / h 6,700 9,000 13,500 17,000
(Nominal) *2 kW 2.0 2.6 4.0 5.0

Power input kW 0.04 0.04 0.07 0.07

Current input A 0.45 0.45 0.55 0.56
External finish Galvanized
External dimension H x W x D in. 9-13/16x27-9/16x28-7/8 9-13/16x27-9/16x28-7/8 9-13/16x27-9/16x28-7/8 9-13/16x35-7/16x28-7/8

mm 250 x 700 x 732 250 x 700 x 732 250 x 700 x 732 250 x 700 x 732
Net weight lbs (kg) 51(23) 51(23) 51(23) 58(26)
Heat exchanger Cross fin(Aluminium fin and copper tube)
FAN Type x Quantity Sirocco fan x 1 Sirocco fan x 1 Sirocco fan x 1 Sirocco fan x 1

External in.WG 0.14-0.20-0.28-0.40-0.60
static press. Pa 35-50-70-100-150
Motor type DC brushless motor
Motor output kW 0.085 0.085 0.085 0.085
Driving mechanism Direct-driven by motor
Airflow rate cfm 212-265-300 212-265-300 265-318-371 353-424-494
(Low-Mid-High) m3 / min 6.0-7.5-8.5 6.0-7.5-8.5 7.5-9.0-10.5 10.0-12.0-14.0

L / s 100-125-142 100-125-142 125-150-175 167-200-233
Sound pressure level
(Low-Mid-High)
(measured in anechoic room)
Insulation material EPS, Polyethylene foam,Urethane foam
Air filter PP Honeycomb fabric
Protection device Fuse
Refrigerant control device LEV
Connectable outdoor unit R410A,R22 CITY MULTI

Diameter of Liquid (R410A)
refrigerant (R22 ) 1/4 (6.35) Brazed 1/4 (6.35) Brazed 1/4 (6.35) Brazed 1/4 (6.35) Brazed
pipe Gas (R410A)
(O.D.) (R22 ) 1/2 (12.7) Brazed 1/2 (12.7) Brazed 1/2 (12.7) Brazed 1/2 (12.7) Brazed
Diameter of drain pipe in. (mm) O.D. 1-1/4(32)
Drawing External KB94R527

Wiring KB94R531

Refrigerant cycle ­Standard Document Installation Manual, Instruction Book
attachment Accessory Insulation pipe for refrigerant pipe, Washer, Drain hose, Tie band
Optional External heater adaptor PAC-YU25HT
parts Filter box PAC-KE91TB-E PAC-KE91TB-E PAC-KE91TB-E PAC-KE92TB-E
Remark Installation Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other

Note : *1 Nominal cooling conditions *2 Nominal heating conditions Unit convertor

Indoor : 80degF D.B. / 67degF W.B. 70degF D.B. kcal/h = kW x 860

Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B. cfm = m3/min x 35.31

Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)

Level difference : 0 ft. (0 m) 0 ft. (0 m) *Above specification data is
*The external static pressure is set to 0.20in. WG(50Pa) at factory shipment. subject to rounding variation.
*Due to continuing improvement, above specification may be subject to change without notice.

dB <A> 26-28-29 26-28-29 28-30-34 28-30-34

in. (mm)

in. (mm)

(26.7degC D.B. / 19.4degC W.B.) (21.1degC D.B.) BTU/h = kW x 3,412

(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.) lbs = kg / 0.4536

1/4 (6.35) Brazed 1/4 (6.35) Brazed 1/4 (6.35) Brazed 1/4 (6.35) Brazed

1/2 (12.7) Brazed 1/2 (12.7) Brazed 1/2 (12.7) Brazed 1/2 (12.7) Brazed

items shall be referred to the Installation Manual.
Due to continuing improvement, above specifications may be subject to change without notice.

HWE09040 GB

- 4 -

[ III Specifications ]

Model PEFY-P18NMAU-E PEFY-P24NMAU-E PEFY-P27NMAU-E PEFY-P30NMAU-E
Power source 1-phase 208/230V 60Hz
Cooling capacity *1 BTU / h 18,000 24,000 27,000 30,000
(Nominal) *1 kW 5.3 7.0 7.9 8.8

Power input kW 0.11 0.12 0.14 0.14

Current input A 0.77 1.04 1.18 1.18
Heating capacity *2 BTU / h 20,000 27,000 30,000 34,000
(Nominal) *2 kW 5.9 7.9 8.8 10.0

Power input kW 0.09 0.10 0.12 0.12

Current input A 0.66 0.93 1.07 1.07
External finish Galvanized
External dimension H x W x D in. 9-13/16x35-7/16x28-7/8 9-13/16x43-5/16x28-7/8 9-13/16x43-5/16x28-7/8 9-13/16x43-5/16x28-7/8

mm 250 x 900 x 732 250 x 1100 x 732 250 x 1100 x 732 250 x 1100 x 732
Net weight lbs (kg) 58(26) 71(32) 71(32) 71(32)
Heat exchanger Cross fin(Aluminium fin and copper tube)
FAN Type x Quantity Sirocco fan x 1 Sirocco fan x 2 Sirocco fan x 2 Sirocco fan x 2

External in.WG 0.14-0.20-0.28-0.40-0.60
static press. Pa 35-50-70-100-150
Motor type DC brushless motor
Motor output kW 0.085 0.121 0.121 0.121
Driving mechanism Direct-driven by motor
Airflow rate cfm 424-512-600 477-565-671 512-636-742 512-636-742
(Low-Mid-High) m3 / min 12.0-14.5-17.0 13.5-16.0-19.0 14.5-18.0-21.0 14.5-18.0-21.0

L / s 200-242-283 225-267-317 242-300-350 242-300-350
Sound pressure level
(Low-Mid-High)
(measured in anechoic room)
Insulation material EPS, Polyethylene foam,Urethane foam
Air filter PP Honeycomb fabric
Protection device Fuse
Refrigerant control device LEV
Connectable outdoor unit R410A,R22 CITY MULTI

Diameter of Liquid (R410A)
refrigerant (R22 ) 3/8 (9.52) Brazed 3/8 (9.52) Brazed 3/8 (9.52) Brazed 3/8 (9.52) Brazed
pipe Gas (R410A)
(O.D.) (R22 ) 5/8 (15.88) Brazed 5/8 (15.88) Brazed 5/8 (15.88) Brazed 5/8 (15.88) Brazed
Diameter of drain pipe in. (mm) O.D. 1-1/4(32)
Drawing External KB94R527

Wiring KB94R531

Refrigerant cycle ­Standard Document Installation Manual, Instruction Book
attachment Accessory Insulation pipe for refrigerant pipe, Washer, Drain hose, Tie band
Optional External heater adaptor PAC-YU25HT
parts Filter box PAC-KE92TB-E PAC-KE93TB-E PAC-KE93TB-E PAC-KE93TB-E
Remark Installation Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other

Note : *1 Nominal cooling conditions *2 Nominal heating conditions Unit convertor

Indoor : 80degF D.B. / 67degF W.B. 70degF D.B. kcal/h = kW x 860

Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B. cfm = m3/min x 35.31

Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)

Level difference : 0 ft. (0 m) 0 ft. (0 m) *Above specification data is
*The external static pressure is set to 0.20in. WG(50Pa) at factory shipment. subject to rounding variation.
*Due to continuing improvement, above specification may be subject to change without notice.

dB <A> 28-32-35 29-32-36 30-34-38 30-34-38

in. (mm)

in. (mm)

(26.7degC D.B. / 19.4degC W.B.) (21.1degC D.B.) BTU/h = kW x 3,412

(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.) lbs = kg / 0.4536

1/4 (6.35) Brazed 3/8 (9.52) Brazed 3/8 (9.52) Brazed 3/8 (9.52) Brazed

1/2 (12.7) Brazed 5/8 (15.88) Brazed 5/8 (15.88) Brazed 5/8 (15.88) Brazed

items shall be referred to the Installation Manual.
Due to continuing improvement, above specifications may be subject to change without notice.

HWE09040 GB

- 5 -

[ III Specifications ]

Model PEFY-P36NMAU-E PEFY-P48NMAU-E PEFY-P54NMAU-E
Power source 1-phase 208/230V 60Hz
Cooling capacity *1 BTU / h 36,000 48,000 54,000
(Nominal) *1 kW 10.6 14.1 15.8

Power input kW 0.24 0.34 0.36

Current input A 1.50 2.08 2.24
Heating capacity *2 BTU / h 40,000 54,000 60,000
(Nominal) *2 kW 11.7 15.8 17.6

Power input kW 0.22 0.32 0.34

Current input A 1.39 1.97 2.13
External finish Galvanized
External dimension H x W x D in. 9-13/16x55-1/8x28-7/8 9-13/16x55-1/8x28-7/8 9-13/16x63x28-7/8

mm 250 x 1400 x 732 250 x 1400 x 732 250 x 1600 x 732
Net weight lbs (kg) 93(42) 93(42) 102(46)
Heat exchanger Cross fin(Aluminium fin and copper tube)
FAN Type x Quantity Sirocco fan x 2 Sirocco fan x 2 Sirocco fan x 2

External in.WG 0.14-0.20-0.28-0.40-0.60
static press. Pa 35-50-70-100-150
Motor type DC brushless motor
Motor output kW 0.244 0.244 0.244
Driving mechanism Direct-driven by motor
Airflow rate cfm 812-989-1165 989-1201-1412 1042-1254-1483
(Low-Mid-High) m3 / min 23.0-28.0-33.0 28.0-34.0-40.0 29.5-35.5-42.0

L / s 383-467-550 467-567-667 492-592-700
Sound pressure level
(Low-Mid-High)
(measured in anechoic room)
Insulation material EPS, Polyethylene foam,Urethane foam
Air filter PP Honeycomb fabric
Protection device Fuse
Refrigerant control device LEV
Connectable outdoor unit R410A,R22 CITY MULTI

Diameter of Liquid (R410A)
refrigerant (R22 ) 3/8 (9.52) Brazed 3/8 (9.52) Brazed 3/8 (9.52) Brazed
pipe Gas (R410A)
(O.D.) (R22 ) 3/4 (19.05) Brazed 3/4 (19.05) Brazed 3/4 (19.05) Brazed
Diameter of drain pipe in. (mm) O.D. 1-1/4(32)
Drawing External KB94R527

Wiring KB94R531

Refrigerant cycle ­Standard Document Installation Manual, Instruction Book
attachment Accessory Insulation pipe for refrigerant pipe, Washer, Drain hose, Tie band
Optional External heater adaptor PAC-YU25HT
parts Filter box PAC-KE94TB-E PAC-KE94TB-E PAC-KE95TB-E
Remark Installation Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other

Note : *1 Nominal cooling conditions *2 Nominal heating conditions Unit convertor

Indoor : 80degF D.B. / 67degF W.B. 70degF D.B. kcal/h = kW x 860

Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B. cfm = m3/min x 35.31

Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)

Level difference : 0 ft. (0 m) 0 ft. (0 m) *Above specification data is
*The external static pressure is set to 0.20in. WG(50Pa) at factory shipment. subject to rounding variation.
*Due to continuing improvement, above specification may be subject to change without notice.

dB <A> 32-37-41 35-40-44 36-41-45

in. (mm)

in. (mm)

(26.7degC D.B. / 19.4degC W.B.) (21.1degC D.B.) BTU/h = kW x 3,412

(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.) lbs = kg / 0.4536

3/8 (9.52) Brazed 3/8 (9.52) Brazed 3/8 (9.52) Brazed

5/8 (15.88) Brazed 5/8 (15.88) Brazed 5/8 (15.88) Brazed

items shall be referred to the Installation Manual.
Due to continuing improvement, above specifications may be subject to change without notice.

HWE09040 GB

- 6 -

[ III Specifications ]

2. Electrical component specifications

Component Sym-

bol

Room temperature

TH21

thermistor

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

PEFY-

P06NMAU-E

PEFY-

P08NMAU-E

PEFY-

P12NMAU-E

Liquid pipe thermistor 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

Gas 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 85W SIC-70CW-D885-1

Linear expansion valve LEV 12VDC Stepping motor drive port diameter ø3.2 (0~2000 pulse)

Power supply terminal
block

Transmission terminal
block

TB2

TB5

TB15

(L1, L2, G) 250V 20A

(1, 2) 250V 15A, (M1, M2, S) 250V 20A

Drain float switch DS Open/short detection

Initial contact resistance 500 m or less

Component Sym-

bol

Room temperature

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

PEFY-

P15NMAU-E

PEFY-

P18NMAU-E

PEFY-

P24NMAU-E

PEFY-

P27NMAU-E

PEFY-

P30NMAU-E

thermistor

Liquid pipe thermistor 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

Gas 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 85W

SIC-70CW-D885-2

8-pole, Output 121W

SIC-70CW-D8121-1

Linear expansion valve LEV 12VDC Stepping motor drive port diameter ø3.2 (0~2000 pulse)

Power supply terminal

TB2 (L1, L2, G) 250V 20A

block

Transmission terminal
block

TB5

TB15

(1, 2) 250V 15A, (M1, M2, S) 250V 20A

Drain float switch DS Open/short detection

Initial contact resistance 500 m or less

Component Sym-

bol

Room temperature

TH21

thermistor

Liquid pipe thermistor TH22 Resistance 0°C/15k, 10°C/9.6k, 20°C/6.3k, 25°C/5.4k, 30°C/4.3k

Gas 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 244W SIC-101CW-D8244-1

Linear expansion valve LEV 12VDC Stepping motor drive port diameter ø3.2 (0~2000 pulse)

Power supply terminal

TB2

block

Transmission terminal
block

TB5

TB15

Drain float switch DS Open/short detection

HWE09040 GB

PEFY-

P36NMAU-E

PEFY-

P48NMAU-E

PEFY-

P54NMAU-E

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

, 40°C/3.0k



(L1, L2, G) 250V 20A

(1, 2) 250V 15A, (M1, M2, S) 250V 20A

Initial contact resistance 500 m or less

- 7 -

[ IV Outlines and Dimensions ]

IV Outlines and Dimensions

[1] Outlines and Dimensions

1. PEFY-P06, 08, 12, 15, 18, 24, 27, 30, 36, 48, 54NMAU-E

Access door

777(30-5/8)

(11-13/16)

More than 300

450(17-3/4)

450(17-3/4)

Access door

(A)

50(2)

250~300

50(2)

H

(9-7/8~11-13/16)

Note2

Ceiling surface

More than 20(13/16)

More than 10(7/16)

(B)

(11-13/16)

Less than 300

0

-10

65

0

-7/16

(2-9/16 )

(27-9/16)

(Actual length)

Less than 700

<accessory>

Drain hose (I.D.ij32(1-1/4))

JKx(M-1)=NJ6(1/4)

(4-7/16) (4-7/16)

112 112 11(7/16)

KLK

Ø6.35

Liquid pipe

2

Unit:mm(in.)

Ø12.7

Gas pipe

1

P

10

(1/4)

(1/2)

(3/8)

Ø9.52

(5/8)

Ø15.88

12

10

10

12

(8-5/16)

18 (3/4) 210

Note 5

Suspension bolt hole

4-14x30(9/16X1-3/16) Slot

3-Ø2.9(1/8) mounting hole

Fresh air intake Ø100(3-15/16)

knock out hole

153 (6-1/16)

378 (14-15/16)

Drain pipe(O.D. Ø32(1-1/4))

(Emergency draining)

120°

(5-3/8)

135

120°

Ø125

(4-15/16)

200(7-7/8)

15 (5/8)

40 (1-5/8)40 (1-5/8)

2xE-Ø2.9(1/8)

Air filter

G

C

B(Suspension bolt pitch)

A

Air

inlet

Air

outlet

100(3-15/16)X(E-1)=F30 (1-3/16)

D(Duct)20 (13/16)

10 (7/16)

100(3-15/16)

73 (2-7/8)
58 (2-5/16)

100 (3-15/16)

21 (7/8)

23 (15/16)

(O.D.Ø32(1-1/4))

(28-7/8)

(27-9/16)

Drain pipe

(25-3/8)

732

700

643

(Suspension bolt pitch)

238 (9-3/8)

10 (7/16)

32 (1-5/16)

57 (2-1/4)

Refrigerant piping

2

P-ij2.9(1/8)

250 (9-7/8)
217 (8-9/16)

41 (1-5/8)

Control box

Terminal block(Transmission)

2×2-Ø2.9(1/8)

(DUCT)

Refrigerant piping

1

67136

(2-11/16)(5-3/8)

brazing connection (gas)

Terminal block(Power source)

356 (1/16)

33 (1-5/16) 122 (4-13/16)

100 (3-15/16)

Drain pump

brazing connection (liquid)

40 (1-5/8)
23 (15/16)178 (7-1/16)

N

780

990

(39)

1280

1480

(50-7/16)

5

4

4

M

LK

300150

(11-13/16)

260

330

(13)(1-15/16)

49

1200

(39-3/8) (2-3/16) (10-1/4) (30-3/4)

1058

(33-13/16)

1000

9

11

(33-7/8) (31-1/2)

1200

(39-3/8)(37-9/16)(35-7/16)

1154 1060

1100

(12-5/8)

54 320

(2-3/16)(59-1/16)

1500

(47-1/4)

(41-11/16)

1300 1358

(51-3/16) (53-1/2)

14

1360

(41-3/4) (39-3/8)

1500

(59-1/16) (53-9/16)

1454

(45-7/16) (47-1/4)

1400

(55-1/8) (57-1/4)

(43-5/16)

1700 54 370

15581500

16

1560

1700

16541600

(5-15/16)(1-3/4)

J

44800

H

1000 54

(31-1/2)

G

858

658

(25-15/16)

F

800

600

Drain pipe(O.D.Ø32(1-1/4))(Spontaneous draining)

7

860

660

CDE

800

1000

(31-1/2)

B

954900

(29-11/16)

A

700 754

(27-9/16) (26) (23-5/8)

Model

PEFY-P06,08,12NMAU-E

PEFY-P15,P18NMAU-E

PEFY-P24,27,30NMAU-E

PEFY-P36,48NMAU-E

PEFY-P54NMAU-E

(58-5/16)(14-5/8)(2-3/16)

5

(66-15/16)

(61-7/16) (59-1/16) (61-3/8)

(66-15/16)

(63) (65-1/8)

(A) Space required for service and maintenance.
(B) Provide an access door for maintenance at the bottom.

Note 1 Use M10 suspension bolts. (not supplied)

2 Provide an access door for maintenance at the bottom.
3 The dimensions in the table are those of the PEFY-P24, 27, 30, 36, 48, 54NMAU-E models, which have 2

fans. The PEFY-P06, 08, 12, 15, 18NMAU-E model have 1 fans.

4 To connect an intake duct, uninstall the air filter on the unit, and install a locally procured air filter on the intake

duct on the intake side.

5 Heat air to 0°C(32°F) or higher when taking fresh air with a fresh air intake.

HWE09040 GB

- 8 -