Mitsubishi Electric PLFY-P20VCM-E2.TH Manual de funcionamiento

TECHNICAL & SERVICE MANUAL

Indoor unit

[Model names] [Service Ref.]

PLFY-P20VCM-E2.TH

PLFY-P25VCM-E2.TH

PLFY-P32VCM-E2.TH

PLFY-P40VCM-E2.TH

INDOOR UNIT

CONTENTS

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

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

3. SPECIFICATIONS...................................9

4. 4-WAY AIR FLOW SYSTEM.................11

5. OUTLINES AND DIMENSIONS............13

6. WIRING DIAGRAM...............................14

REFRIGERANT SYSTEM DIAGRAM......

8. TROUBLESHOOTING..........................16

9. DISASSEMBLY PROCEDURE.............

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

R407C R22

R410A

Model name

indication

No.OCH463

PLFY-P20VCM-E2

PLFY-P25VCM-E2

PLFY-P32VCM-E2

PLFY-P40VCM-E2

May 2009

Note :

• This manual describes

only service data of the

indoor units.

• RoHS compliant products

have <G> mark on spec

name plate.

PARTS CATALOG (OCB463)

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 enters, 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 indoors during

installation and 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.

[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 which is 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 all the 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

Cautions for units utilizing refrigerant R410A

Store the piping to be used indoors during

installation and 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.

Handle tools with care.

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

cause deterioration of refrigerant oil or malfunction of com-

pressor.

If large amount of mineral oil enters, 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.

[1] Cautions for service

(1) Perform service after recovering 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 standing vertically. (Refrigerant is charged from liquid phase.)

Gravimeter

Unit

[3] Service tools

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

No. Tool name 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.

5Adapter 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

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 horizontal airflow automatically

during cooling or dehumidifying.

Air Intake

Inhales air from room.

2PART NAMES AND FUNCTIONS

Indoor Unit

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

Temperature setting buttons

Down

Timer Menu button

(Monitor/Set button)

Mode button (Return button)

Set Time buttons

Back

Ahead

Timer On/Off button

(Set Day button)

Opening the

lid

ON/OFF button

Fan Speed button

Filter button

(<Enter> button)

Test Run button

Check button (Clear button)

Airflow Up/Down button

Louver button

( Operation button)

To return operation

number

Ventilation button

( Operation button)

To go to next operation

number

Built-in temperature sensor

Wired remote controller

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

Wired remote controller

●

°F°C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

OFF

AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLY

SIMPLE

AUTO OFF

●

Note:

“PLEASE WAIT” message

This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure.

“NOTAVAILABLE” message

This message is displayed if an invalid button is pressed (to operate a function that the indoor unit does not have).

If a single remote controller is used to operate multiple indoor units simultaneously that are different types, this message will not be displayed as

far as any of the indoor units is equipped with the function.

Display Section

For purposes of this explanation,

all parts of the display are shown

as lit. During actual operation, only

the relevant items will be lit.

Identifies the current operation

Shows the operating mode, etc.

*Multilanguage display is available.

“Centrally Controlled” indicator

Indicates that operation from the

remote controller has been prohib-

ited by a master controller.

“Timer is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

Day-of-Week

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off

timer is set.

If the simple or Auto Off timer is set, the time to be

switched off is shown.

“Sensor” indication

Displayed when the remote controller

sensor is used.

“Locked” indicator

Indicates that remote controller but-

tons have been locked.

“Clean The Filter” indicator

To be displayed on when it is time to

clean the filter.

Timer indicators

The indicator comes on if the corre-

sponding timer is set.

Up/Down Air Direction indica-

tor

Shows the direction of the

outcoming airflow.

“One Hour Only” indicator

Room Temperature display

Shows the room temperature. The room

temperature display range is 8~39.

The display blinks if the temperature

is less than

8or 39

or more.

Louver display

Indicates the action of the swing louver.

Does not appear if the louver is not

running.

(Power On indicator)

Indicates that the power is on.

Fan Speed indicator

Shows the selected fan speed.

Ventilation indicator

Appears when the unit is running in

Ventilation mode.

Displayed if the airflow is set to

low or downward during COOL

or DRY mode. (Operation varies

according to model.)

The indicator goes off in one hour,

when the airflow direction also

changes.

Wireless remote controller

ON/OFF TEMP

FAN

VANE

TEST RUN

AUTO STOP

AUTO START

min

LOUVER

MODE

CHECK

RESETSET CLOCK

MODEL SELECT

NOTAVAILABLE

CHECK

TEST RUN

°C

AMPM

VANE CONTROL button

Used to change the air flow

CLOCK button

RESET button

SET button

ON/OFF button

The unit is turned ON and OFF alternately

each time the button is pressed.

LOUVER button

Changes left/right airflow direction.

(Not available for this model.)

MODE SELECT button

Used to switch the operation mode between

cooling, drying, fan, heating and auto mode.

CHECK-TEST RUN button

Only press this button to perform an

inspection check or test operation.

Do not use it for normal operation.

FAN SPEED SELECT button

Used to change the fan speed.

TIMER display

Displays when in timer operation or when

setting timer.

button

SET TEMPERATURE button sets any desired

room temperature.

CLOCK display

Displays the current time.

“ ” “ ” display

Displays the order of timer operation.

“ ” “ ” display

Displays whether timer is on or off.

In case the outdoor unit is cool only type,

the heating and auto mode are not

available.

Buttons used to set the “hour and minute” of

the current time and timer settings.

h and min buttons

display

FAN SPEED display indicates which fan

speed has been selected.

display

The vertical direction of air flow is indicated.

display

Blinks when model is selected.

display

CHECK and TEST RUN display indicate that

the unit is being checked or test-run.

display

OPERATION MODE display

Operation mode display indicates which

operation mode is in effect.

TIMER CONTROL buttons

AUTO STOP (OFF timer): when this switch is

set, the air conditioner will be automatically

stopped at the preset time.

AUTO START (ON timer): when this switch is

set, the air conditioner will be automatically

started at the preset time.

MODEL SELECT

CHECK

TEST RUN

SET TEMP. display indicates the set desired

temperature.

Lights up while the signal is transmitted to

the indoor unit when the button is pressed.

3-1. SPECIFICATIONS

3SPECIFICATIONS

1 Nominal cooling condition

Note : Indoor :

Outdoor :

Pipe length :

Level difference :

27˚CDB/19˚CWB (81˚FDB/66˚FWB)

35˚CDB (95˚FDB)

7.5 m (24-9/16 ft)

0m (0 ft)

2 Nominal cooling condition

27˚CDB/19.5˚CWB (81˚FDB/67˚FWB)

35˚CDB (95˚FDB)

5m (16-3/8 ft)

0m (0 ft)

3 Nominal heating condition Unit converter

20˚CDB (68˚FDB)

7˚CDB/6˚CWB (45˚FDB/43˚FWB)

7.5 m (24-9/16 ft)

0 m (0 ft)

* Due to continuing improvement, above specification may be subject to change without notice.

* Nominal conditions 1, 3 are subject to JIS B8615-1.

kcal = kW × 860

Btu/h = kW × 3,412

cfm = m3/min x 35.31

lb = kg / 0.4536

Model

Power source

Cooling capacity

(Nominal)

Heating capacity

(Nominal )

External finish

External dimension H x W x D

Net weight

Decoration panel

Heat exchanger

FAN

Noise level (Low-Mid-High)

(measured in anechoic room)

Insulation material

Air filter

Protection device

Refrigerant control device

Connectable outdoor unit

Diameter of

refrigerant pipe

Field drain pipe size

Standard

attachment

Remark

Power input

Current input

Power input

Current input

Model

External finish

Dimension

H × W × D

Net Weight

Cord heater

Type × Quantity

External static press.

Motor type

Motor output

Driving mechanism

Airflow rate

(Low-Mid-High)

Liquid

Gas

Document

Accessory

Optional parts

Installation

kcal / h

Btu / h

kcal / h

Btu / h

in.

kg (lb)

in.

kg (lb)

m3/ min

L / s

cfm

dB <A>

mm (in.)

PLFY-P20VCM-E2

Single phase 220-230-240V 50Hz

Unit: Galvanized sheets with grey heat insulation

White Munsell(6.4Y 8.9/0.4)

Cross fin (Aluminum fin and copper tube)

Turbo fan × 1

Single phase induction motor

Direct-driven by motor

Polyethylene foam

PP honeycomb fabric (long life type)

Fuse

LEV

R410A, R407C, R22 CITY MULTI

Installation manual, Instruction book

Drain hose I.D. 32mm (1-1/4"), Wireless junction cable

Decoration panel : SLP-2AAW or SLP-2ALW

*PLFY-P-VCM-E2 should use together with Decoration panel.

2.2

1,900

7,500

2,000

0.05

0.23

2.5

2,200

8,500

0.05

0.23

208 × 570 × 570

8-1/4" × 22-1/2" × 22-1/2"

15.5 (35)

SLP-2AAW or SLP-2ALW

20 × 650 × 650

13/16" × 25-5/8" × 25-5/8"

3 (7)

0.015

0Pa (0mmH2O)

0.011

8-9-10

133-150-167

283-318-353

28-31-35

ø6.35 (ø1/4") Flare

ø12.7 (ø1/2") Flare

PLFY-P25VCM-E2

2.8

2,400

9,600

2,500

0.05

0.23

3.2

2,800

10,900

0.05

0.23

208 × 570 × 570

8-1/4" × 22-1/2" × 22-1/2"

15.5 (35)

20 × 650 × 650

13/16" × 25-5/8" × 25-5/8"

3 (7)

0.015

0Pa (0mmH2O)

0.015

8-9-10

133-150-167

283-318-353

29-31-37

ø6.35 (ø1/4") Flare

ø12.7 (ø1/2") Flare

PLFY-P32VCM-E2

3.6

3,100

12,300

3,150

0.06

0.28

4.0

3,400

13,600

0.06

0.28

208 × 570 × 570

8-1/4" × 22-1/2" × 22-1/2"

17 (38)

20 × 650 × 650

13/16" × 25-5/8" × 25-5/8"

3 (7)

0.015

0Pa (0mmH2O)

0.02

8-9-11

133-150-183

283-318-388

29-33-38

ø6.35 (ø1/4") Flare

ø12.7 (ø1/2") Flare

PLFY-P40VCM-E2

4.5

3,900

15,400

4,000

0.06

0.28

5.0

4,300

17,100

0.06

0.28

208 × 570 × 570

8-1/4" × 22-1/2" × 22-1/2"

17 (38)

20 × 650 × 650

13/16" × 25-5/8" × 25-5/8"

3 (7)

0.015

0Pa (0mmH2O)

0.02

8-9-11

133-150-183

283-318-388

30-34-39

ø6.35 (ø1/4") Flare

ø12.7 (ø1/2") Flare

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items shall be referred to

the Installation Manual.

O.D. 32mm (1-1/4") (PVC pipe VP-25 connectable)

SLP-2AAW or SLP-2ALW SLP-2AAW or SLP-2ALW SLP-2AAW or SLP-2ALW

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 +

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

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

PLFY-P25VCM-E2.THPLFY-P20VCM-E2.TH PLFY-P32VCM-E2.TH PLFY-P40VCM-E2.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-LD

6-pole OUTPUT 11W

PK6V11-LF 6-pole OUTPUT 20W

PK6V20-LM

6-pole OUTPUT 20W

PK6V20-LL

MSBPC20M13

DC12V 300



/phase

PLD-12230ME-1

INPUT 12/10.8W 241/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$2

1.5× 440V1.0× 440V

Fan motor capacitor

Vane motor

Drain pump

Drain sensor

Linear expansion valve

[coil]

+Note: Refer to WIRING DIAGRAM for the supplied voltage.

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