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

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

No. OC213

Series PLFY

Indoor unit [Model names] [Service Ref.]

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

Ceiling Cassettes

INDOOR UNIT

R407C

CONTENTS

1. SAFETY PRECAUTION ························3

2. PART NAMES AND FUNCTIONS·········5

3. SPECIFICATION ···································7

4. 4-WAY AIR FLOW SYSTEM·················8

5. OUTLINES AND DIMENSIONS··········12

6. WIRING DIAGRAM ·····························13

REFRIGERANT SYSTEM DIAGRAM

8. TROUBLE SHOOTING ·······················15

9. DISASSEMBLY PROCEDURE ···········20

10. PARTS LIST ········································23

11. OPTIONAL PARTS ·····························26

R22

····14

SAFETY PRECAUTION

Cautions for devices that use R407C refrigerant.

· Do not use the existing refrigerant piping.

-The old refrigerant and lubricating oil in the existing piping contains a large amount of chlorine which may cause the lubricating oil 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 lubricating oil 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 Suniso 4GS or 3GS (small amount) as the lubricating oil to coat flares and flange connection parts.

-The lubricating oil used with the air conditioner is highly hygroscopic. If it is used, water may be mixed in and deterioration

of the lubricating oil may result.

· Use liquid refrigerant to charge the system.

-If gas refrigerant is used to charge the system, the composition of the refrigerant in the cylinder will change and perfor-

mance 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 lubricating 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 lubricating oil to deteriorate.

[1] Service tools

Gravimeter

Unit

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 35kgf/cm

2 Charge hose ·Only for R407C.

·Use pressure performance of 52kgf/cm2or 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 all the refrigerant in the unit, work may be started.

·Do not release the refrigerant in the air.

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

or over.

[3] Refrigerant recharging

(1) Refrigerant recharging process

Direct charging from the cylinder.

·Confirm that the cylinder is suitable for syphoning.

·Raise the cylinder and recharge the unit by syphoning liquid refrigerant.

(2) Recharge when refrigerant leakage has occurred.

·After recovering all the refrigerant in the unit, work may be started.

·Do not release the refrigerant in the air.

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

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

OPERATION SWITCH button

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

TEMPERATURE 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 switches the horizontal fan motion ON and OFF.

(This button does not operate on 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

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

Filter Removes dust and pollutants from intake air

Grille

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

● Remote controller

● Operation buttons

Air Intake Intakes air from room.

[PAR-F25MA]

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

● Display

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 dis played from the time the heating operation starts until 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 setting 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.

FAN SPEED display

The selected fan speed is displayed.

Operation lamp

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

ROOM TEMPERATURE display

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

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 TEMPERATURE 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 needs to be cleaned.

Item

·Hz

kcal/h

BTU/h

kcal/h

BTU/h

kW kW kW

A % %

mm mm mm

k/min

[mm [mm [mm

Cooling capacity

Power

Heat exchanger

Insulator

Air filter

Fan ✕ No

Air flow #3

Pipe

dimensions

Drain pipe size

Noise level

Exterior

(munsell symbol)

Fan motor

output

External

static pressure

Liquid

side

Gas side

Heating capacity

F a n

Dimensions

Height

Width

Depth

Electric characteristic

Power

supply

input

Cooling Heating Cooling Heating Cooling Heating

Rated

current

Power

factor

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

Single phase 220V-240V 50 Hz

8,000

31,800

9.3

9,000

35,800

10.5

0.18

0.86

0.86 95 - 87 95 - 87

10,000 39,600

11.6 11,200 44,500

13.0

0.30

1.43

1.43 95 - 87 95 - 87

12,500

49.700

14.5 14,000 55,600

16.3

0.34

1.64

94 - 86 94 - 86

30-28-25-22

43-41-38-35

30<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

28-26-23-20

Polyethylene sheet

PP honey comb fabric (long life)

O.D.32 (PVC pipe O.D.32 connectable)

41-39-36-33

30<5>

258<30>

22-20-18-16

0.070

15.88(5/8")

9.52(3/8")

37-35-32-30

24<5>

298<30>

0.120

19.05(3/4")

9.52(3/8")

Product weight

SPECIFICATION

3-1. Specification

Note 1. Rating conditions(JIS B 8615)

Note 2. The number indicated in < > is just for the grille. Note 3. Air flow and the noise level are indicated as High-Middium 1-Middium 2-Low.

Cooling : Indoor : D.B. 27°C W.B. 19.5°C Heating : Indoor : D.B. 21°C

outdoor : D.B. 35°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

Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k"

250V 6.3A

240V 21.8W

(L, N, ;) 330V 30A

(M1, M2, S) 250V 30A

Liquid pipe thermistor

Gas pipe thermistor

Fan motor capacitor

Vane motor

Drain-up mechanism

Drain sensor

Linear expansion valve

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

Room temperature thermistor

Fuse (Indoor controller board)

Fan motor (with inner-thermostat)

Inner-thermostat (Fan motor)

Electric heater (Condensation proof)

Power supply terminal block

Transmission terminal block

6-pole OUTPUT 120W

D176P120MS

6-pole OUTPUT 70W

D17B6P70MS

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

Discharge direction

pattern

4-direction<Table 1> 3-direction 2-direction Note :

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 outlets

fully closed

4-1. Placement of the air outlets

For this grille, the discharge 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 the Table below according to the location in which you want to install the unit.

1) Decide on the pattern of the airflow direction.

4-WAY AIR FLOW SYSTEM

A.B

SW5

240V220V

SWA

3 2 1

SWB

2 3 4

(RED)

ADDRESS

CN43

(RED)

ADDRESS

CN82

Standard

2.7m

3.0m

3.3m

High ceiling 1

3.0m

3.3m

3.5m

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.UK

PLFY-P100VAM.UK PLFY-P125VAM.UK

4 3 2

Standard

3.2m

3.6m

4.0m

High ceiling 1

3.6m

4.0m

4.2m

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 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 etc.

Green

Yellow

Orange

Connector (5P)

Package side

Multiple remote controller adapter PAC-SA88HA-E

Be sure to secure insulation material by tape etc.

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 (Location for installation)

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 add 135mm 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

Whenever the indoor unit is operating, the duct fun also

(1)Connect the optional multiple remote controller

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

(w)Use a relay under 1W.

duct fan (Booster fan)

operates.

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

between the Yellow and Orange connector lines.

MB: Electromagnetic switch power relay for duct fan.

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

+ 19 hidden pages