Mitsubishi Electric Mr.SLIM PCA-RP71HA Manuale utente

SERVICE MANUAL

No. OC329

REVISED EDITION-B

INDOOR UNIT

REMOTE CONTROLLER

Indoor unit

[Model names] [Service Ref.]

PCA-RP71HA

PCA-RP71HA#1

PCA-RP125HA

PCA-RP125HA#1

CONTENTS

1. TECHNICAL CHANGES.................................. 2

2. REFERENCE MANUAL...................................2

3. SAFETY PRECAUTION...................................3

4. PART NAMES AND FUNCTIONS....................

5. SPECIFICATIONS............................................9

6. NOISE CRITERION CURVES........................10

7. OUTLINES AND DIMENSIONS......................11

WIRING DIAGRAM.................................................

REFRIGERANT SYSTEM DIAGRAM....................

10. TROUBLESHOOTING....................................15

11. SPECIAL FUNCTION.....................................26

12. DISASSEMBLY PROCEDURE.......................29

13. PARTS LIST....................................................

14. RoHS PARTS LIST.........................................

ON/OFF

TEMP.

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SPLIT-TYPE, AIR CONDITIONERS

May 2008

Model name

indication

Revision:

•PCA-RP71·125HA#1 are added

in REVISED EDITION-B.

•Some descriptions have been

modified.

Note:

•This manual describes only

service data of the indoor units.

•RoHS compliant products have

<G> mark on the spec name

plate.

•For servicing of RoHS com-

pliant products, refer to the

RoHS Parts List.

•Please void OC329

REVISED EDITION-A.

2-1. OUTDOOR UNIT’S SERVICE MANUAL

2-2. TECHNICAL DATA BOOK

2REFERENCE MANUAL

TECHNICAL CHANGES

Service Ref. Service Manual No.

PUHZ-RP35/50/60/71/100/125/140VHA(1)

PUHZ-RP100/125/140YHA OC334

PUHZ-RP71/100/125/140VHA(1)-A OC337

PUHZ-RP200/250YHA(1)(2) OC338

PUHZ-RP200/250YHA(1)-A OC339

PU(H)-P • VGAA.UK

PU(H)-P • YGAA.UK OC336

PUHZ-P100/125/140VHA.UK OC359

PUHZ-RP35/50/60/71/100/125/140VHA2(1)

PUHZ-RP100/125/140YHA2(1)

PUHZ-RP35/50/60/71/100VHA3

PUHZ-RP100YHA3

OC374

PU(H)-P71/100VHA(1).UK

PU(H)-P100/125/140YHA(1).UK OC379

PUHZ-P100/125/140VHA2(1).UK OCH415 / OCB415

PUHZ-RP71/100/125/140VHA2-A

PUHZ-RP100/125/140YHA2-A OCH422 / OCB422

PUHZ-BP100/125/140VHA-A

PUHZ-BP200/250YHA-A OCH423 / OCB423

PUHZ-P200/250YHA2 OCH424 / OCB424

PUHZ-HRP71/100VHA

PUHZ-HRP100/125YHA OCH425 / OCB425

PUHZ-RP200/250YHA2 OCH428 / OCB428

Series (Outdoor unit) Manual No.

PUHZ-RP • HA(-A) OCS01

PU(H)-P • GAA.UK OCS02

PUHZ-RP • HA2 OCS05

PUHZ-P • HA OCS06

PU(H)-P • HA OCS07

PUHZ-P • VHA2, PUHZ-P • YHA OCS08

PUHZ-RP • HA2-A OCS09

PUHZ-BP • HA OCS10

PUHZ-HRP • HA OCS11

PCA-RP71HA PCA-RP71HA#1

PCA-RP125HA PCA-RP125HA#1

INDOOR CONTROLLER BOARD(I.B.) has been changed.

SAFETY PRECAUTION

Cautions for units utilising refrigerant R407C

3-2. 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 ESTER , 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.

3-1. ALWAYS OBSERVE FOR SAFETY

Before obtaining access to terminal, all supply

circuits must be disconnected.

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.

—

[3] Service tools

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

[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

[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 utilising refrigerant R410A

CAUTIONS RELATED TO NEW REFRIGERANT

Use new refrigerant pipes.

Make sure that the inside and outside of refrige-

rant piping is clean and it has no contamination

such as sulfur hazardous for use, oxides, dirt,

shaving particles, etc.

In addition, use pipes with specified thickness.

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.

In case of using the existing pipes for R22, be careful with

the followings.

· For RP71VHA3 and RP125 be sure to perform

replacement operation before test run.

· Change flare nut to the one provided with this product.

Use a newly flared pipe.

· Avoid using thin pipes.

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

Contamination inside refrigerant piping can cause deterio-

ration of refrigerant oil etc.

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.

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 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.)

[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.

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

Gravimeter

Unit

4PART NAMES AND FUNCTIONS

Indoor (Main) Unit

Air outlet

Air intake

Oil filter (Air intake)

+It prevents oil from

getting into the unit.

Left/right guide vanes

Change the direction of airflow

from the horizontal blower.

Up/down guide vanes

Change the direction of airflow from the

vartical blower.

Remote controller

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

Operation buttons

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

Set Temperature 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

door.

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 preceding operation

number.

Ventilation button

(Operation button)

To next operation number.

Display

For purposes of this explanation,

all parts of the display are shown

as lit. During actual operation, only

the relevant items will be lit.

°F°C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

OFF

AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLY

SIMPLE

AUTO OFF

Identifies the current operation

Shows the operating mode, etc.

* Multilanguage display is sup-

ported.

“Centrally Controlled” indicator

Indicates that operation of the re-

mote 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 orAuto Off

timer is set.

If the simple or Auto Off timer is set, shows the time

remaining.

“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

Comes 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

The indicator shows the direc-

tion of the outcoming airflow.

“One Hour Only” indicator

Displayed if the airflow is set to

low and downward during COOL

or DRY mode. (Operation varies

according to model.)

The indicator goes off after one

hour, at which time the airflow di-

rection also changes.

Room Temperature display

Shows the room temperature.

Louver display

Indicates the action of the swing

louver. Does not appear if the

louver is stationary.

(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.

Caution

 Only the Power on indicator lights when the unit is stopped and power supplied to the unit.

 If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “NotAvailable”

message.

If you are using the remote controller to drive multiple indoor units, this message will appear only if he feature is not

present at every unit connected.

 When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indication

(For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.

SPECIFICATIONS

*/min(CFM)

Pa(mmAq)

mm(in.)

kg(lbs)

Service Ref.

Mode

Power supply(phase, cycle, voltage)

Input

Running current

Starting current

External finish

Heat exchanger

Fan Fan(drive) x No.

Fan motor output

Airflow(Low-High)

External static pressure

Operation control & Thermostat

Noise level(Low-High)

Unit drain pipe I.D.

Dimensions

Weight

INDOOR UNIT

PCA-RP125HA, PCA-RP125HA#1

Cooling

0.26

1.19

2.38

Heating

0.26

1.19

2.38

Single phase, 50Hz, 230V

Stainless steel

Plate fin coil

Sirocco fan (direct) x 4

0.08 + 0.08

30-38(1,060-1,350)

0(direct blow)

Remote controller & built-in

44-50

26(1)

1,520(59-7/8)

650(25-5/8)

280(11)

56(124)

Cooling

0.09

0.43

0.86

Heating

0.09

0.43

0.86

Single phase, 50Hz, 230V

Stainless steel

Plate fin coil

Sirocco fan (direct) x 2

0.04

17-19(600-670)

0(direct blow)

Remote controller & built-in

34-38

26(1)

1,136(44-3/4)

650(25-5/8)

280(11)

41(90)

PCA-RP71HA, PCA-RP71HA#1

*/min(CFM)

Pa(mmAq)

mm(in.)

kg(lbs)

Service Ref.

Mode

Power supply(phase, cycle, voltage)

Input

Running current

Starting current

External finish

Heat exchanger

Fan Fan(drive) x No.

Fan motor output

Airflow(Low-High)

External static pressure

Operation control & Thermostat

Noise level(Low-High)

Unit drain pipe I.D.

Dimensions

Weight

INDOOR UNIT

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB ( 0dB = 0.0002 μbar )

BAND CENTER FREQUENCIES, Hz

PCA-RP71HA

PCA-RP71HA#1

NOTCH

High

Low

SPL(dB)

LINE

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB ( 0dB = 0.0002 μbar )

BAND CENTER FREQUENCIES, Hz

PCA-RP125HA

PCA-RP125HA#1

NOTCH

High

Low

SPL(dB)

LINE

1m unit

about 1.4m

MICROPHONE

ceiling

NOISE CRITERION CURVES

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