Mitsubishi Electronics PDFY-P06NMU-E, PDFY-P12NMU-E, PDFY-P15NMU-E, PDFY-P08NMU-E, PDFY-P18NMU-E User Manual

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TECHNICAL & SERVICE MANUAL

PDFY-P06NMU-E,PDFY-P08NMU-E

PDFY-P12NMU-E,PDFY-P15NMU-E

PDFY-P18NMU-E,PDFY-P24NMU-E

PDFY-P27NMU-E,PDFY-P30NMU-E

PDFY-P36NMU-E,PDFY-P48NMU-E

2005

Models

Ceiling Concealed Built-in

Series PDFY

CONTENTS

SAFETY PRECAUTIONS ·························

1. FEATURES············································

2. PART NAMES AND FUNCTIONS ········

3. SPECIFICATION ···································

4. OUTLINES AND DIMENSIONS············

5. WIRING DIAGRAM ·····························

REFRIGERANT SYSTEM DIAGRAM

····

7. TROUBLE SHOOTING························

8. DISASSEMBLY PROCEDURE···········

For use with the R410A & R22

AIR CONDITIONERS CITY MULTI

- Inadequate connection and fastening may generate heat and

cause a fire.

• Prepare for typhoons and other strong winds and earthquakes

and install the unit at the specified place.

- Improper installation may cause the unit to topple and result in

injury.

• Always use an air cleaner, humidifier, electric heater, and other

accessories specified by Mitsubishi Electric.

- Ask an authorized technician to install the accessories. Improper

installation by the user may result in water leakage, electric shock,

or fire.

• Never repair the unit. If the air conditioner must be repaired,

consult the dealer.

- If the unit is repaired improperly, water leakage, electric shock, or

fire may result.

• Do not touch the heat exchanger fins.

- Improper handling may result in injury.

• If refrigerant gas leaks during installation work, ventilate the

room.

- If the refrigerant gas comes into contact with a flame, poisonous

gases will be released.

• Install the air conditioner according to this Installation Manual.

- If the unit is installed improperly, water leakage, electric shock, or

fire may result.

• Have all electric work done by a licensed electrician according

to “Electric Facility Engineering Standard” and “Interior Wire

Regulations”and the instructions given in this manual and al-

ways use a special circuit.

- If the power source capacity is inadequate or electric work is per-

formed improperly, electric shock and fire may result.

• Securely install the cover of control box and the panel.

- If the cover and panel are not installed properly, dust or water

may enter the outdoor unit and fire or electric shock may result.

• When installing and moving the air conditioner to another site,

do not charge the it with a refrigerant different from the refrig-

erant (

- If a different refrigerant or air is mixed with the original refrigerant,

the refrigerant cycle may malfunction and the unit may be dam-

aged.

• If the air conditioner is installed in a small room, measures

must be taken to prevent the refrigerant concentration from

exceeding the safety limit even if the refrigerant should leak.

- Consult the dealer regarding the appropriate measures to pre-

vent the safety limit from being exceeded. Should the refrigerant

leak and cause the safety limit to be exceeded, hazards due to

lack of oxygen in the room could result.

• When moving and reinstalling the air conditioner, consult the

dealer or an authorized technician.

- If the air conditioner is installed improperly, water leakage, elec-

tric shock, or fire may result.

• After completing installation work, make sure that refrigerant

gas is not leaking.

- If the refrigerant gas leaks and is exposed to a fan heater, stove,

oven, or other heat source, it may generate noxious gases.

• Do not reconstruct or change the settings of the protection

devices.

- If the pressure switch, thermal switch, or other protection device

is shorted and operated forcibly, or parts other than those specified

by Mitsubishi Electric are used, fire or explosion may result.

1. Before installation and electric work

s Before installing the unit, make sure you read all the

“Safety precautions”.

s The “Safety precautions” provide very important

points regarding safety. Make sure you follow them.

s This equipment may not be applicable to EN61000-3-

2: 1995 and EN61000-3-3: 1995.

s Please report to or take consent by the supply au-

thority before connection to the system.

Symbols used in the text

Warning:

Describes precautions that should be observed to prevent danger

of injury or death to the user.

Caution:

Describes precautions that should be observed to prevent damage

to the unit.

Symbols used in the illustrations

: Indicates an action that must be avoided.

: Indicates that impor tant instructions must be followed.

: Indicates a part which must be grounded.

: Indicates that caution should be taken with rotating parts. (This

symbol is displayed on the main unit label.) <Color: Yellow>

: Beware of electric shock (This symbol is displayed on the main

unit label.) <Color: Yellow>

Warning:

Carefully read the labels affixed to the main unit.

Warning:

• Ask the dealer or an authorized technician to install the air con-

ditioner.

- Improper installation by the user may result in water leakage, elec-

tric shock, or fire.

• Install the air unit at a place that can withstand its weight.

- Inadequate strength may cause the unit to fall down, resulting in

injuries.

• Use the specified cables for wiring. Make the connections se-

curely so that the outside force of the cable is not applied to the

terminals.

This equipment may have an adverse effect equip-

ment on the same electrical supply system.

R22) specified on the unit.

• When handling this product, always wear protective equipment.

EG : Gloves, full arm protection namely boiler suit, and safety glasses.

- Improper handling may result in injury.

SAFETY PRECAUTIONS

2. Precautions for devices that use

Caution:

• Do not use the existing refrigerant piping.

- The old refrigerant and refrigerator oil in the existing piping con-

tains a large amount of chlorine which may cause the refrigerator

oil of the new unit to deteriorate.

• Use refrigerant piping made of C1220 (Cu-DHP) phosphorus

deoxidized copper as specified in the *JIS H3300 “Copper and

copper alloy seamless pipes and tubes”. In addition, be sure

that the inner and outer surfaces of the pipes are clean and

free of hazardous sulphur, oxides, dust/dirt, shaving particles,

oils, moisture, or any other contaminant.

- Contaminants on the inside of the refrigerant piping may cause

the refrigerant residual oil to deteriorate.

*JIS: Japanese Industrial Standard

• Store the piping to be used during installation indoors and keep

both ends of the piping sealed until just before brazing. (Store

elbows and other joints in a plastic bag.)

- If dust, dirt, or water enters the refrigerant cycle, deterioration of

the oil and compressor trouble may result.

• Use ester oil, ether oil or alkylbenzene (small amount) as the

refrigerator oil to coat flares and flange connections.

- The refrigerator oil will degrade if it is mixed with a large amount of

mineral oil.

• Use liquid refrigerant to fill the system.

- If gas refrigerant is used to seal the system, the composition of

the refrigerant in the cylinder will change and performance may

drop.

• Do not use a refrig

- If another refrigerant (R22, etc.) is used, the chlorine in the refrig-

erant may cause the refrigerator oil to deteriorate.

• Use a vacuum pump with a reverse flow check valve.

- The vacuum pump oil may flow back into the refrigerant cycle and

cause the refrigerator oil to deteriorate.

• Do not use the following tools that are used with conventional

refrigerants.

(Gauge manifold, charge hose, gas leak detector, reverse flow

check valve, refrigerant charge base, vacuum gauge, refriger-

ant recovery equipment)

- If the conventional refrigerant and refrigerator oil are mixed in the

• Do not use a charging cylinder.

- Using a charging cylinder may cause the refrigerant to deteriorate.

• Be especially careful when managing the tools.

- If dust, dirt, or water gets in the refrigerant cycle, the refrigerant

may deteriorate.

R410A refrigerant

erant other than R410A.

R410A , the refrigerant may deteriorated.

- If deteriorate.water is mixed in the R410A , the refrigerator oil may

- Since R410A does not contain any chlorine, gas leak detectors

for conventional refrigerants will not react to it.

Warning:

Note the following when building a heater in the air

conditioning system.

- Leave enough space between units for proper ventilation so that

the indoor unit temperature does not exceed 40

˚C when

windless.

- Keep the heater clean, and take appropriate measures so that

the indoor unit does not suck in the dust particles that

accumulate on the heater.

- Use the optional heater cable (PAC-YU24HT) to perform an

interlocked operation with indoor units.

- Do not build a heater inside the indoor unit.

•

Recommended circuit

FS1

FS2

FS1

FS2

CN24

88H

26H

88H

Wiring diagram

1-phase power

supply

208V, 230V/60Hz

Control board

FS1, 2 ----- Thermal fuse

H1, H2 ----- Heater

26H --------- Overheat protection

thermostat

88H --------- Electromagnetic contactor

PDFY-P06NMU-E

PDFY-P08NMU-E

PDFY-P12NMU-E

PDFY-P15NMU-E

PDFY-P18NMU-E

PDFY-P24NMU-E

PDFY-P27NMU-E

PDFY-P30NMU-E

PDFY-P36NMU-E

PDFY-P48NMU-E

1.8 / 2.0

2.3 / 2.6

3.5 / 4.0

4.4 / 5.0

5.3 / 5.9

7.0 / 7.9

7.9 / 8.8

8.8 / 10.0

10.6 / 11.7

14.1 / 15.8

Ceiling Concealed Built-in

Series PDFY

Models

Cooling capacity/Heating capacity

6000 / 6700

8000 / 9000

12000 / 13500

15000 / 17000

18000 / 20000

24000 / 27000

27000 / 30000

30000 / 34000

36000 / 40000

48000 / 54000

Btu / h

FEATURES1

Indoor unit

●

Remote

Indoor (Main) Unit

controller

● Operation buttons

[PAR-21MAA]

Once the controls are set, the same operation mode can

be repeated by simply pressing the ON/OFF button.

1 [Set Temperature] Button

2 [Timer Menu] Button

[Monitor/Set] Button

3 [Mode] Button

[Return] Button

4 [Timer On/Off] Button

[Set Day] Button

7 [Airflow Up/Down] Button

[Ventilation] Button

[Operation] Button

5 [Louver] Button

[Operation] Button

6 [Fan Speed] Button

[Check/Clear] Button

0 [Test run] Button

[Filter] Button

[ ] Button

[ON/OFF] Button

Position of built-in room temperature

[Set Time] Button

Ne• ver expose the remote controller to direct sunlight. Doing so can result in the erroneous measure-

ment of room temperature.

• Never place any obstacle around the lower right-hand section of the remote controller. Doing so can

result in the erroneous measurement of room temperature.

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

4D 568 9

PART NAMES AND FUNCTIONS2

Air outlet

Air inlet

[Display]

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

CHECK

CHECK MODE

FILTER

TEST RUN

FUNCTION

1Hr.

NOT AVAILABLE

STAND BY

DEFROST

TEMP.

OLGNIHJQ

Current time/Timer

Centralized control

Timer OFF

Timer indicator

Operation mode: COOL, DRY, AUTO, FAN, HEAT

“Locked” indicator

Set temperature

Power ON

Louver

Ventilation

Filter sign

Set effective for 1 hr.

Sensor position

Room temperature

Airflow

Fan speed

3-1. Specification

PDFY-P-NMU-E

Notes: *1 Cooling/Heating capacity indicates the maximum value at operation under the following condition.

Cooling: Indoor: 26.7

˚C [80 ˚F] DB/19.4 ˚C [67 ˚F] WB Outdoor: 35 ˚C [95 ˚F] DB

Heating: Indoor: 21.1

˚C [70 ˚ F] DB Outdoor: 8.3 ˚C [47 ˚F] DB/6.1 ˚C [43 ˚F] WB

*2 The operating noise is the data that was obtained in an anechoic room.

*3 As for the factory setting is below.

PDFY-P-NMU-E series

Item Model PDFY-P06NMU-E PDFY-P08NMU-E PDFY-P12NMU-E PDFY-P15NMU-E PDFY-P18NMU-E

Power sourse 208/230V, 60Hz

Capacity

Cooling

kW 1.8 3.5 4.4

BTU/h 6000 8000 12000 15000 18000

Heating

kW 2.

2.3

2.60 4.0 5.0

5.3

5.9

BTU/h 6700 9000 13500 17000 20000

Dimension

Height

mm 295

in 11-5/8

Width

mm 710 960

in 27-31/32 37-13/16

Depth

mm 735

in 28-15/16

Net weight

kg 26 26 27 32 34

lb 57 57 60 71 75

FAN

Airflow rate

(Low-(Middle2-Middle1-) High)

/min 6.0-6.5-7.5-8.5 6.0-6.5-7.5-8.5 6.0-6.5-7.5-8.5

10.0-11.0-12.5-14.0 10.0-11.0-12.5-14.0

cfm 211-229-264-300 211-229-264-300 211-229-264-300 353-388-441-494 353-388-441-494

External static

pressure *3

208V 30-50-80 30-50-80 30-50-80 30-50-80 30-50-80

230V 40-60-100 40-60-100 40-60-100 40-60-100 40-60-100

Noise level

(Low-(Middle2-Middle1-) High) *2

dB(A)

208V 26-28-31-34 26-28-31-34 26-28-31-34 32-34-35-37 32-34-35-37

230V 28-30-33-36 28-30-33-36 28-30-33-36 34-36-37-39 34-36-37-39

Filter Standard filter

Item Model PDFY-P24NMU-E PDFY-P27NMU-E PDFY-P30NMU-E PDFY-P36NMU-E PDFY-P48NMU-E

Power sourse 208/230V, 60Hz

Capacity

Cooling

kW 7. 7.90 8.8 10.6 14.1

BTU/h 24000 27000 30000 36000 48000

Heating

kW 7.9 8.8 10. 11.7 15.80

BTU/h 27000 30000 34000 40000 54000

Dimension

Height

mm 295 335

in 11-5/8 13-7/32

Width

mm 1160 1510

in 45-11/16 59-15/32

Depth

mm 735 775

in 28-15/16 30-17/32

Net weight

kg 39 39 39 52 52

lb 86 86 86 115 115

FAN

Airflow rate

(Low-(Middle2-Middle1-) High)

/min

12.5-14.0-16.0-18.0 13.5-15.5-17.5-19.5 14.0-16.5-18.5-21.0

19.5-28.0 24-34

cfm 441-494-565-635 477-547-618-689 494-582-653-741 688-988 847-1200

External static

pressure *3

208V 30-50-80 30-50-80 30-50-100 50-100-130 50-100-130

230V 40-60-100 40-60-100 40-60-115 60-115-150 60-115-150

Noise level

(Low-(Middle2-Middle1-) High) *2

dB(A)

208V 28-32-34-37 31-35-37-40 32-35-38-40 36-44 42-46

230V 30-34-36-39 32-36-38-40 34-37-40-42 38-45 43-47

Filter Standard filter

PDFY-P06NMU-E PDFY-P08NMU-E PDFY-P12NMU-E PDFY-P15NMU-E PDFY-P18NMU-E

208V 230V 208V 230V 208V 230V 208V 230V 208V 230V

50 60 50 60 50 60 50 60 50 60

PDFY-P24NMU-E PDFY-P27NMU-E PDFY-P30NMU-E PDFY-P36NMU-E PDFY-P48NMU-E

208V 230V 208V 230V 208V 230V 208V 230V 208V 230V

50 60 50 60 50 60 50 60 50 60

SPECIFICATION3

LEV

C1 3.0µF X 440V 5.0µF X 440V

5.0µF

X 440V

8.0µF

X 440V

6.0µF X 440V

MF1

PDFY-

P06,08,12

NMU-E

PDFY-

P30

NMU-E

PDFY-

P36

NMU-E

PDFY-

P48

NMU-E

PDFY-

P24,27

NMU-E

PDFY-

P15,18

NMU-E

3-2. Electrical parts specifications

Model

Parts

name

Tranrsformer T (Primary) 240V 60Hz (Secondary) (23.5V 0.9A)

TH21

Resistance 0˚C[32˚F]/15kΩ,10˚C[50˚F]/9.6kΩ,20˚C[68˚F]/6.3kΩ,25˚C[77˚F]/5.4kΩ,

30˚C[86˚F]/4.3kΩ,40˚C[104˚F]/3.0kΩ

Resistance 0˚C[32˚F]/15kΩ,10˚C[50˚F]/9.6kΩ,20˚C[68˚F]/6.3kΩ,25˚C[77˚F]/5.4kΩ,

30˚C[86˚F]/4.3kΩ,40˚C[104˚F]/3.0kΩ

Resistance 0˚C[32˚F]/15kΩ,10˚C[50˚F]/9.6kΩ,20˚C[68˚F]/6.3kΩ,25˚C[77˚F]/5.4kΩ,

30˚C[86˚F]/4.3kΩ,40˚C[104˚F]/3.0kΩ

TH22

Gas pipe

thermistor

FUSE 250V 6.3A

TB2 (L1,L2,G) 330V 30A

TB5

TB15

(1,2),(M1,M2,S) 330V 30A

Fuse

(Indoor con-

troller board)

Power supply

terminal bed

Transmission

terminal bed

OFF 130˚C±5˚C[266˚F±41˚F]

ON 90˚C±20˚C[194˚F±68˚F]

OFF 150˚C±5˚C[302˚F±41˚F]

ON 96˚C±15˚C[205˚F±59˚F]

Room

temperature

thermistor

Fan motor

(with Inner-

thermostat)

4-pole

Output 75W

D104P75MW

4-pole

Output 85W

D104P85MW

4-pole Output 95W

D104P95MW

4-pole

Output 140W

NC-100VM1

4-pole

Output 190W

NC-125VM1

Symbol

DC12V Stepping motor drive port dimension

3.2Ω (0~2000pulse) EDM-402MD

DC12V Stepping motor drive port dimension

5.2Ω (0~2000pulse) EDM-804MD

TH23

Inner-

thermostat

(Fan motor)

Liquid pipe

thermistor

Fan motor

capacitor

Linear

expansion valve

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