Mitsubishi PLFY-P80VAM-A.UK, PLFY-P100VAM-A.UK, PLFY-P125VAM-A.UK Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

No. OC260

Series PLFY

Indoor unit [Model names] [Service Ref.]

PLFY-P80VAM-A PLFY-P80VAM-A.UK PLFY-P100VAM-A PLFY-P100VAM-A.UK PLFY-P125VAM-A PLFY-P125VAM-A.UK

INDOOR UNIT

Ceiling Cassettes

R407C

CONTENTS

1. SAFETY PRECAUTION·····················2

2. PART NAMES AND FUNCTIONS······4

3. SPECIFICATION ·································6

4. 4-WAY AIR FLOW SYSTEM···············7

5. OUTLINES AND DIMENSIONS ·······10

6. WIRING DIAGRAM ···························11

REFRIGERANT SYSTEM DIAGRAM

8. TROUBLE SHOOTING·····················13

9. DISASSEMBLY PROCEDURE·········18

10. PARTS LIST ·····································21

11. OPTIONAL PARTS ···········Back cover

R22

·12

SAFETY PRECAUTION

Cautions for using with the outdoor unit which adopts R407C refrigerant.

· Do not use the existing refrigerant piping.

-The old refrigerant and lubricant in the existing piping contains a large amount of chlorine which may cause the lubricant of the new unit to deteriorate.

· Use “low residual oil piping”.

-If there is a large amount of residual oil (hydraulic oil, etc.) inside the piping and joints, deterioration of the lubricant will result.

· 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 ESTR , ETHER or HAB as the lubricant to coat flares and flange connection parts.

Use liquid refrigerant to seal 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 refrigerant other than R407C.

-If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may cause the lubricant 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 lubricant to deteriorate.

Gravimeter

Unit

[1] Service tools

Use the below service tools as exclusive tools for R407C refrigerant.

No. Tool name Specifications

1 Gauge manifold ·Only for R407C.

·Use the existing fitting SPECIFICATIONS. (UNF7/16)

·Use high-tension side pressure of 3.43MPa·G or over.

2 Charge hose ·Only for R407C.

·Use pressure performance of 5.10MPa·G or over.

3 Electronic scale 4 Gas leak detector ·Use the detector for R134a or R407C. 5 Adapter for reverse flow check. ·Attach on vacuum pump. 6 Refrigerant charge base. 7 Refrigerant cylinder. ·For R407C ·Top of cylinder (Brown)

·Cylinder with syphon

8 Refrigerant recovery equipment.

[2] Notice on repair service

·After recovering the all refrigerant in the unit, proceed to working.

·Do not release refrigerant in the air.

·After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

[3] Refrigerant recharging

(1) Refrigerant recharging process

1Direct charging from the cylinder.

·R407C cylinder are available on the market has a syphon pipe.

·Leave the syphon pipe cylinder standing and recharge it. (By liquid refrigerant)

(2) Recharge in refrigerant leakage case

·After recovering the all refrigerant in the unit, proceed to working.

·Do not release the refrigerant in the air.

·After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

Auto Air Swing Vane Disperses airflow up and down and adjusts the angle of airflow direction.

Grille

Filter Remove dust and pollutants from return air

Horizontal Air Outlet Sets airflow horizontal automatically during cooling or dehumidifying.

Air Intake Returns air from room.

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

˚C

CHECK

CHECK MODE

FILTER

TEST RUN FUNCTION

˚C

1Hr.

NOT AVAILABLE

STAND BY DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

Press this button to switch the cooler, electronic dry (dehumidify), automatic and heater modes.

OPERATION SWITCH button

This sets the room temperature. The temperature setting can be performed in 1: units Setting range Cooler 19: to 30: Heater 17: to 28:

TEMP. ADJUSTMENT button

This switches between continuous operation and the timer operation.

TIMER button

This switches between the operation and stop modes each time it is pressed. The lamp on this button lights during operation.

ON/OFF button

Only press this button to perform an inspection check or test operation. Do not use it for normal operation.

CHECK-TEST RUN button

This switch the horizontal fan motion ON and OFF.

(Not available for this model.)

LOUVER button

This adjusts the vertical angle of the ventilation.

AIR DIRECTION button

This resets the filter service indication display

FILTER button

This sets the current time, start time and stop time.

TIME SETTING button

This sets the ventilation fan speed.

AIR SPEED button

PART NAMES AND FUNCTIONS

● Indoor (Main) Unit

● Remote controller

● Operation buttons

[PAR-20MAA]

● Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.

● Display

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

˚C

CHECK

CHECK MODE

FILTER

TEST RUN FUNCTION

˚C

1Hr.

NOT AVAILABLE

STAND BY DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

CENTRALLY CONTROLLED display

This indicates when the unit is controlled by optional features such as central control type remote controller.

TIMER display

This indicates when the continuous operation and time operation modes are set. It also display the time for the timer operation at the same time as when it is set.

OPERATION MODE display

This indicates the operation mode.

STANDBY display

The [STANDBY] symbol is only displayed from the time the heating operation starts unit the heated air begins to blow.

DEFROST display

This indicates when the defrost operation is performed.

CLOCK display

The current time , start time and stop time can be displayed in ten second intervals by pressing the time switch button. The start time or stop time is always displayed during the timer operation.

In this display example on the bottom left, a condition where all display lamps light is shown for explanation purposes although this differs from actual operation.

AIR DIRECTION display

This displays the air direction.

AIR SPEED display

The selected fan speed is displayed.

ROOM TEMPERATURE display

The temperature of the suction air is displayed during operation. The display range is 8°C to 39°C. The display flashes 8°C when the actual temperature is less than 8°C and flashes 39°C when the actual temperature is greater than 39°C.

Operation lamp

This lamp lights during operation, goes off when the unit stops and flashes when a malfunction occurs.

CHECK MODE

TEST RUN

This display lights in the check mode or when a test operation is performed.

display

FILTER display

CHECK display

This indicates when a malfunction

has occurred in the unit which should be checked.

SET TEMPERATURE display

This displays the selected setting

temperature.

Caution

● Only the Power display lights when the unit is stopped and power supplied to the unit.

● When the central control remote control unit, which is sold separately, is used the ON-OFF button, operation switch button

and TEMP. adjustment button do not operate.

● “NOT AVAILABLE” is displayed when the Air speed button are pressed.This indicates that this room unit is not equipped with the fan direction adjustment function and the louver function.

● When power is turned ON for the first time, it is normal that “H0” is displayed on the room temperature indication (For max. 2minutes). Please wait until this “H0” indication disappear then start the operation.

POWER display

This lamp lights when electricity is supplied to the unit.

This lamp lights when the filter need to be cleaned.

Item

kW kW kW kW

A A

— mm mm mm

—

k/min

—

[mm(in.) [mm(in.)

[mm

Cooling capacity

Power

Heat exchanger

Insulator

Air filter

Fan ✕ No

Air flow W3

Pipe

dimensions

Cond. drain pipe size

Noise level W3 Product weight

Exterior

(munsell symbol)

Fan motor

output

External

static pressure

Liquid

side

Gas side

Heating capacity

F a n

Dimensions

Height

Width

Depth

Electric characteristic

Input

Cooling Heating Cooling Heating

Current

PLFY-P80VAM-A.UK

PLFY-P100VAM-A.UK PLFY-P125VAM-A.UK

9.0

10.0

0.18

0.86

11.2

12.5

0.30

1.43

14.0

16.0

0.34

1.64

28-26-23-20

41-39-36-33

30<5>

22-20-18-16

37-35-32-30

24<5>

Unit : Galvanized sheets with gray heat insulation Grille : ABS resin Munsell<0.70Y 8.59/0.97>

840<950> 840<950>

Cross fin

Turbo fan ✕ 1

Polyethylene sheet

PP honey comb fabric

O.D.32 (PVC pipe VP-25 connectable)

258<30>

298<30>

30-28-25-22

43-41-38-35

30<5>

0.070

0.120

15.88(5/8")

9.52(3/8")

19.05(3/4")

9.52(3/8")

Single phase , 220-230-240V , 50Hz

[,V,Hz

SPECIFICATION

3-1. Specification

Note 1. Rating conditions(JIS B 8616)

Note 2. The number indicated in < > is just for the grille.

W 3. Air flow and the noise level are indicated as High-Middium 1-Middium 2-Low.

Cooling : Indoor : D.B. 27°C W.B. 19.0°C

outdoor : D.B. 35°C

Heating : Indoor : D.B. 20°C

outdoor : D.B. 7°C W.B. 6°C

3-2. Electrical parts specifications

Parts name

Model

Symbol

TH21

TH22

TH23

FUSE

LEV

TB2

TB5

TB15

Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.2k", 30:/4.3k", 40:/3.0k"

250V 6.3A

240V 21.8W

(L, N, ;) 330V 30A

(M1, M2, S) 250V 20A

(1, 2) 250V 10A

Liquid pipe thermistor

Gas pipe thermistor

Fan motor capacitor

Vane motor

Drain-up mechanism

Drain sensor

Linear expansion valve

PLFY-P80VAM-A.UK PLFY-P100VAM-A.UK PLFY-P125VAM-A.UK

Room temperature thermistor

Fuse (Indoor controller board)

Fan motor (with inner-thermostat)

Electric heater (Condensation proof)

Power supply terminal block

Transmission terminal block

MA remote controller terminal block

6-pole OUTPUT 120W

D176P120MS

6-pole OUTPUT 70W

D17B6P70MS

Inner-thermostat

MSBPC20M04

DC12V 300

/phase

PLD-12230ME-1

INPUT 12/10.8W 24R/Hr

Thermistor resistance 0:/6k", 10:/3.9k", 20:/2.6k", 25:/2.2k", 30:/1.8k", 40:/1.3k"

DC12V Stepping motor drive port dimension 5.2" (0~2000pulse)

EDM-804ME

OFF 130: i 5:

ON 90: i 20:

3.5+ ✕ 440V 7.0+ ✕ 440V

Blowout direction

pattern

4-direction<Table 1> 3-direction 2-direction Note1.

For 3 and 2-directional, please use the air outlet shutter plate (option).

Pattern 1 Factory setting Pattern 4 One air outlet

fully closed

Pattern 6 Two air outlet

fully closed

4-1. Placement of the air outlets

• For this grille, the blowout direction comes in 11 patterns. Also, by setting the dip switches (SWA and SWB) on the indoor board to the appropriate settings, you can adjust the air flow and speed. Select the settings from Table according to the location in which you want to install the unit.

4-WAY AIR FLOW SYSTEM

1) Decide on the pattern of the airflow direction.

A.B

SW5

240V220V

SWA

3 2 1

SWB

2 3 4

(RED)

ADDRESS

CN43

(RED)

ADDRESS

CN82

1

Standard

2.7m

3.0m

3.3m

2

High ceiling 1

3.0m

3.3m

3.5m

3

High ceiling 2

3.5m

3.5m —

CONNECTION

No.

SW14

SWC

SW1

87654321

OFF

SW11

SW12

1ST.DIGIT2ND.DIGIT

3RD.DIGIT

4 direction 3 direction 2 direction

SWA

SWB

PLFY-P80VAM-A.UK

PLFY-P100 / P125VAM-A.UK

4 3 2



Standard

3.2m

3.6m

4.0m

2

High ceiling 1

3.6m

4.0m

4.2m

3

High ceiling 2

4.2m

4.2m —

4 direction 3 direction 2 direction

SWA

SWB

4 3 2

2) According to the number of air outlets and height of the ceiling to install the unit, be sure to set the up switches

Fresh air intake hole

Fresh air intake hole diagram

3 - {2.8 Burring hole

{125 Burring hole pitch

{100 (Cut out hole)

Refrigerant pipe Drain pipe

Ceiling surface

120_

w158

CN51

Multiple remote controller adapter PAC-SA88HA-E

Indoor controller board

Distance between indoor controller board and relay must be within 10m.

Be sure to secure insulation material by tape and such

Green

Yellow

Orange

Connector (5P)

Package side

Multiple remote controller adapter PAC-SA88HA-E

Be sure to secure insulation material by tape and such

Installation at site

CN51 on indoor unit board

Red

Brown

CN51

(SWA, SWB) on the indoor board to the appropriate setting.

• Correspondence of ceiling heights to numbers of air outlets.

4-2. Fresh air intake (Installation of site)

• At the time of installation, use the duct holes (cutout) located at the positions shown in following diagram, as and when required. Note :

Be sure to add135mm to the dimensions in the diagram that are marked with a “w” if installing a multi function casement (Option)

4-3. Interlocking operation method with

duct fan (Booster fan)

● Whenever the indoor unit is operating, the duct fun also

operates. (1)Connect the optional multiple remote controller

adapter(PAC-SA88HA-E)to the connector CN51 on the indoor controller board.

(2)Drive the relay after connecting the 12V DC relay

between the Yellow and Orange connector lines.

(w)Use a relay under 1W. MB: Electromagnetic switch power relay for duct fan.

X: Auxiliary relay (12V DC LY-1F)

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