Mitsubishi Electric PLFY-P20VCM-E Manuel d'utilisation

TECHNICAL & SERVICE MANUAL

Indoor unit

[Model names] [Service Ref.]

PLFY-P20VCM-E PLFY-P20VCM-E.TH

PLFY-P25VCM-E PLFY-P25VCM-E.TH

PLFY-P32VCM-E PLFY-P32VCM-E.TH

PLFY-P40VCM-E PLFY-P40VCM-E.TH

No. OC314

INDOOR UNIT

Ceiling Cassettes

CONTENTS

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

2. PART NAMES AND FUNCTIONS··········6

3. SPECIFICATIONS···································8

4. 4-WAY AIR FLOW SYSTEM·················10

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

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

REFRIGERANT SYSTEM DIAGRAM

·····14

8. DISASSEMBLY PROCEDURE·············15

9. TROUBLE SHOOTING·························18

10. PARTS LIST··········································25

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

R407C R22

R410A

Model name

indication

Series PLFY

OC314--1.qxp 04.8.27 11:43 Page 1

1SAFETY PRECAUTION

[1] Cautions for 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.

Cautions for units utilizing refrigerant R407C

CAUTIONS RELATED TO NEW 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 deterioration of the new unit.

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.

Use ESTR , ETHER or HAB as the lubricant to

coat flares and flange connection parts.

If large amount of mineral oil enter, that can cause

deterioration of refrigerant oil etc.

Use liquid refrigerant to charge 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 deterioration.

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 deterioration.

Store the piping to be used during installation

indoors with keep both ends 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. Ventilate the room if refrigerant leaks during

operation. If refrigerant comes into contact with

a flame, poisonous gases will be released.

OC314--1.qxp 04.8.27 11:43 Page 2

[3] Service tools

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

No. Tool name Specifications

1Gauge manifold ·Only for R407C.

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

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

2Charge hose ·Only for R407C.

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

3Electronic scale

4Gas leak detector ·Use the detector for R134a or R407C.

5Adapter for reverse flow check. ·Attach on vacuum pump.

6Refrigerant charge base.

7Refrigerant cylinder. ·For R407C ·Top of cylinder (Brown)

·Cylinder with syphon

8Refrigerant recovery equipment.

[2] 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.

Gravimeter

Unit

OC314--1.qxp 04.8.27 11:43 Page 3

Cautions for units utilizing refrigerant R410A

Store the piping to be used during installation

indoors and keep both ends of the piping sealed

until just before brazing. (Leave elbow joints, etc.

in their packaging.)

Use ester oil, ether oil or alkylbenzene oil (small

amount) as the refrigerant oil applied to flares

and flange connections.

Charge refrigerant from liquid phase of gas

cylinder.

If the refrigerant is charged from gas phase, composition

change may occur in refrigerant and the efficiency will be

lowered.

Do not use refrigerant other than R410A.

If other refrigerant (R22 etc.) is used, chlorine in refrige-

rant can cause deterioration of refrigerant oil etc.

Use a vacuum pump with a reverse flow check

valve.

Vacuum pump oil may flow back into refrigerant cycle and

that can cause deterioration of refrigerant oil etc.

Use the following tools specifically designed for

use with R410A refrigerant.

The following tools are necessary to use R410A refrigerant.

Keep the tools with care.

If dirt, dust or moisture enter into refrigerant cycle, that can

cause deterioration of refrigerant oil or malfunction of com-

pressor.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigera-

nt will change and the efficiency will be lowered.

Flare tool

Electronic refrigerant

charging scale

Vacuum pump adaptor

Size adjustment gauge

Gauge manifold

Torque wrench

Gas leak detector

Charge hose

Tools for R410A

If dirt, dust or moisture enter into refrigerant cycle, that can

cause deterioration of refrigerant oil or malfunction of com-

pressor.

If large amount of mineral oil enter, that can cause deterio-

ration of refrigerant oil etc.

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 deterioration of the new unit.

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.

Ventilate the room if refrigerant leaks during

operation. If refrigerant comes into contact with

a flame, poisonous gases will be released.

OC314--1.qxp 04.8.27 11:43 Page 4

[1] Cautions for service

(1) Perform service after collecting the refrigerant left in unit completely.

(2) Do not release refrigerant in the air.

(3) After completing service, charge the cycle with specified amount of refrigerant.

(4) When performing service, install a filter drier simultaneously.

Be sure to use a filter drier for new refrigerant.

[2] Additional refrigerant charge

When charging directly from cylinder

· Check that cylinder for R410A on the market is syphon type.

· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)

Gravimeter

Unit

[3] Service tools

Use the below service tools as exclusive tools for R410A refrigerant.

No. Specifications

1Gauge manifold ·Only for R410A

·Use the existing fitting specifications. (UNF1/2)

·Use high-tension side pressure of 5.3MPa·G or over.

2Charge hose ·Only for R410A

·Use pressure performance of 5.09MPa·G or over.

3Electronic scale

4Gas leak detector ·Use the detector for R134a, R407C or R410A.

5Adaptor for reverse flow check ·Attach on vacuum pump.

6Refrigerant charge base

7Refrigerant cylinder ·Only for R410A Top of cylinder (Pink)

Cylinder with syphon

8Refrigerant recovery equipment

OC314--1.qxp 04.8.27 11:43 Page 5

Auto Air Swing Vane

Disperses airflow up and

down and adjusts the angle

of airflow direction.

Grille

Filter

Remove dust and pollutants

from inhaled air

Horizontal Air Outlet

Sets airflow horizontal automatically

during cooling or dehumidifying.

Air Intake

Inhales air from room.

2PART NAMES AND FUNCTIONS

● Indoor Unit

[PAR-20MAA]

● Once the controls are set, the same operation mode can

be repeated by simply pressing the ON/OFF button.

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 between

cool,

dry, automatic and heat 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

● Remote controller

● Operation buttons

OC314--1.qxp 04.8.27 11:43 Page 6

Caution

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

●“NOT AVAILABLE” is displayed when the Air speed button is 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.

CENTRALLY

CONTROLLED display

This indicates when the unit is con-

trolled 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.

CHECK display

This indicates when a malfunction

has occurred in the unit which should

be checked.

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.

●Display

In this display example on the bot-

tom left, a condition where all dis-

play lamps light is shown for expla-

nation purposes although this differs

from actual operation.

Operation lamp

This lamp lights during operation,

goes off when the unit stops and

flashes when a malfunction occurs.

POWER display

This lamp lights when electricity is

supplied to the unit.

SET TEMPERATURE display

This displays the selected setting

temperature.

AIR DIRECTION display

This displays the air direction.

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 tem-

perature is greater than 39°C.

display

This display lights in the check

mode or when a test operation is

performed.

CHECK MODE

TEST RUN

This lamp lights when the filter need

to be cleaned.

AIR SPEED display

The selected fan speed is displayed.

FILTER 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

OC314--1.qxp 04.8.27 11:43 Page 7

SPECIFICATION

3-1. Specifications

3SPECIFICATIONS

Item

—

k/min

—

[mm(in.)

[mm

Cooling capacity

Power

Heat exchanger

Insulator

Air filter

Fan ✕No

Air flow W3

Pipe

dimensions

Unit drain pipe size

Noise level W3

Product weight

Exterior

(munsell symbol)

Fan motor

output

External

static pressure

Liquid

side

Gas

side

Heating capacity

Dimensions

Height

Width

Depth

Electric characteristic

Input

Cooling

Heating

Cooling

Heating

Current

PLFY-P25VCM-E.TH PLFY-P32VCM-E.TH

PLFY-P20VCM-E.TH PLFY-P40VCM-E.TH

2.2

2.5

0.011

35-31-28 37-31-29 38-33-29 39-34-30

0.015 0.020

10-9-8

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

208 <20>

570<650>

Cross fin

Turbo fan ✕1

Polyethylene sheet

PP honey comb fabric

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

Single phase 220-230-240V 50Hz

V·Hz

2.8

3.2

3.6

4.0

4.5

5.0

0.06

0.28

0.05

0.23

11-10-9

[12.7(1/2")

[6.35(1/4")

17<3>15.5<3>

Note 1. Rating conditions(JIS B 8616)

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

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

W3. Air flow and the noise level are indicated as High-Medium-Low.

OC314--1.qxp 04.8.27 11:43 Page 8

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:/5.4k", 30:/4.3k", 40:/3.0k"

250V 6.3A

240V 15W

(L, N, ;) Rated to 330V 30A w

(M1, M2, S) Rated to 250V 20A w

(1, 2) Rated to 250V 10A w

PLFY-P25VCM-E.THPLFY-P20VCM-E.TH PLFY-P32VCM-E.TH PLFY-P40VCM-E.TH

Thermistor

(Room temperature

detection)

Thermistor

(Pipe temperature

detection/ Liquid)

Thermistor

(Pipe temperature

detection/ Gas)

Fuse

(Indoor controller board)

Fan motor

(with Thermal fuse) Thermal fuse

Electric heater

(Condensation proof)

Power supply terminal

block

Transmission terminal

block

MA remote controller

terminal block

6-pole OUTPUT 15W

PK6V15-LC

6-pole OUTPUT 11W

PK6V11-LE 6-pole OUTPUT 20W

PK6V20-LK

6-pole OUTPUT 20W

PK6V20-LJ

MSBPC20M13

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-40YGME

OFF 145:i2:

1.5+✕440V1.0+✕440V

Fan motor capacitor

Vane motor

Drain pump

Drain sensor

Linear expansion valve

[coil]

w Note: Refer to WIRING DIAGRAM for the supplied voltage.

OC314--1.qxp 04.8.27 11:43 Page 9

4 4-WAY AIR FLOW SYSTEM

4-1. Fresh air intake (Location for installation)

At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required.

Detail drawing of fresh air intake

Ceiling surface

Refrigerant pipe Drain pipe

Electrical Box

Cut out hole

[73.4

Burring hole

3-[2.8 hole

[100

118

120°

Fresh air intake

Static pressure : P [Pa] Air flow : Q [m3/min]

-50

-100

-150

-200

-250

-300

00.5 1.0 1.5 2.0 2.5 3.0 3.5

PLFY-P20VCM-E.TH

PLFY-P25VCM-E.TH

PLFY-P32VCM-E.TH

PLFY-P40VCM-E.TH

Taking air into the unit

4-2. Fresh air intake amount & static pressure characteristics

1Curve in the

left praphs.

Duct characteristics

at site

E C

A D

Q…Planned amount of fresh air intake

A…Static pressure loss of fresh air

intake duct system with air flow

amount Q

B…Forced static pressure at air condi-

tioner inlet with air flow amount Q

C…Static pressure of booster fan with

air flow amount Q

D…Static pressure loss increase

amount of fresh air intake dust sys-

tem for air flow amount Q <Pa>

E…Static pressure of indoor unit with air

flow amount Q

Qa…Estimated amount of fresh air

intake with out D <m3/min>

<Pa>

How to read curves

NOTE: Fresh air intake amount should be 20% or less of

whole air amount to prevent dew dripping.

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.

MB: Electromagnetic switch power relay for duct fan.

X:Auxiliary relay (For DC 12V, coil rating : 1.0W or below)

CN51

Multiple remote

controller adapter

PAC-SA88HA-E

Indoor controller board

Distance between indoo

controller board and rela

must be within 10m.

Be sure to secure insulation

material by tape and such

5Green

Yellow

Orange

Connector (5P)

Package side Multiple remote

controller adapter

PAC-SA88HA-E Be sure to secure insulat

material by tape and such

Installation at site

CN51

on indoor

controller board

Red

Brown

CN51

OC314--1.qxp 04.8.27 11:43 Page 10

Ce manuel convient aux modèles suivants

Table des matières

Autres manuels Mitsubishi Electric Climatiseur

Mitsubishi Electric

Mitsubishi Electric MSZ-JP09WA Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MU-GA50VB Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric PLA-ZP50EA Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric PUHZ-RP35VHA2 Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric PKA-A12HA Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MS-A18WV Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSC-A07YV Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSZ-DW25VF Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSZ-D30NA Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric Mr. Slim MXZ-3A30NA Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric PLFY Series Manuel d'utilisation

Mitsubishi Electric

Mitsubishi Electric PRC- 8MYA Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric PUHZ-P200YKA3 Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MUFZ-KJ25VEHZ Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric TRANE TPKA0A 1KA70 Series Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSZ-GL06NA Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric s-MEXT-G00 006-044 Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSZ-AP42VGK Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSZ-GA50VA Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSZ-GF60VE Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSZ-HR42VFK Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MSZ-AP60VGK Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric MFZ-KW25VG-E1 Manuel utilisateur

Mitsubishi Electric

Mitsubishi Electric PQHY-P72TYHMU-A Comment utiliser

Manuels Climatiseur populaires d'autres marques

Spheros

Spheros CC 355 Manuel utilisateur

Bosch

Bosch Climate 5000 SCI 24 CAS/ OU- OUE Manuel utilisateur

Panasonic

Panasonic CS-E12HKEW Manuel utilisateur

nedis

nedis ACMB1WT7 Manuel utilisateur

Samsung

Samsung AR KV Series Mode d’emploi

Daikin

Daikin FCFV50A Manuel utilisateur

Fujitsu

Fujitsu Inverter ASBA30JFC Manuel utilisateur

Toshiba

Toshiba RAS-M10SMUV-E Manuel utilisateur

Daikin

Daikin FXLQ20MAVE Manuel utilisateur

Hitachi

Hitachi RAS-E24CAK Manuel utilisateur

CIAT

CIAT Magister 2 Series Mode d’emploi

Bestron

Bestron AAC6000 Manuel utilisateur

Hisense

Hisense 7K Manuel technique

Frigidaire

Frigidaire FFRE0533S1E0 Manuel utilisateur

Samsung

Samsung AS09HM3N Manuel utilisateur

Frigidaire

Frigidaire CRA073PU11 Manuel du propriétaire

Soleus Air

Soleus Air GB-PAC-08E4 Manuel utilisateur

McQuay

McQuay MCK020A Manuel utilisateur