Mitsubishi HWE05210 Service Manual

SERVICE MANUAL

<indoor unit> Service ref.

Models

PEAD-RP35EA(2)
PEAD-RP50EA
PEAD-RP60EA
PEAD-RP71EA
PEAD-RP100EA(

2)

PEAD-RP125EA
PEAD-RP140EA

TM

1. REFERENCE MANUAL ····························· 2

2. SAFETY PRECAUTION ···························· 3

3. PART NAMES AND FUNCTIONS ············· 7

4. SPECIFICATION ······································· 9

5. FAN PERFORMANCE AND
CORRECTED AIR FLOW ························ 12

6. SOUND LEVELS ······································ 16

7. OUTLINES & DIMENSIONS ···················· 18

8. WIRING DIAGRAM ·································· 20

9. REFRIGERANT SYSTEM DIAGRAM ······ 21

10

. TROUBLESHOOTING ···························· 22

11

. DISASSEMBLY INSTRUCTIONS ············ 34

12

. PARTS LIST ············································· 36

13

. OPTIONAL PARTS ·································· 42

CONTENTS

INDOOR UNIT

REMOTE CONTROLLER

ON/OFF

TEMP.

Series PEAD

R407C/R410A

2005

SPLIT-TYPE, HEAT PUMP
AIR CONDITIONERS

NOTE:

• This manual describes only
service data of the indoor
units.

2

REFERENCE MANUAL

1

Service Ref.

PUHZ-RP35/50/60/71/100/125/140VHA
PUHZ-RP100/125/140YHA

PUHZ-RP71/100/125/140VHA-A
PUHZ-RP200/250YHA
PUHZ-RP200/250YHA-A

PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK

SUZ-KA·VA.TH

Service Manual No.

OC334
OC337

OC338
OC339

PUHZ-P100/125/140VHA.UK

OC359
OC336
OC322

1-1. OUTDOOR UNIT’S SERVICE MANUAL

Series (Outdoor unit)

PUHZ-RP·VHA(-A)
PUHZ-RP·YHA(-A)

PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK

Manual No.

OCS01

PUHZ-P·VHA.UK

OCS06
OCS02

1-2.TECHNICAL DATA BOOK

3

[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.

[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 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 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.

Gravimeter

Unit

SAFETY PRECAUTION

2

4

[3] 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.

5

<Cautions for units utilizing refrigerant R410A>

CAUTIONS RELATED TO NEW REFRIGERANT

Use new refrigerant pipes.

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

· For RP100,125 and 140 be sure to perform pipe
replacement operation before test run.

· Use flare nut as provided with this product.
Use a newly flared pipe.

· Avoid using thin pipes. For the detail, please refer to the
outdoor unit service manual.

Do not use refrigerant other than R410A.

If other refrigerant (R22 etc.) is used, chlorine in refrige­rant can cause deterioration of refrigerant oil etc.

Use a vacuum pump with a reverse flow check
valve.

If no reverse flow check valve is used, 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 com­pressor.

Do not use a charging cylinder without syphone
tube.

If a charging cylinder is used without syphone tube, the
composition of refrigerant 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)

Make sure that the inside and outside of refrige­rant piping is clean and it has no contamination
such as sulfur which is 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.

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.

Contamination inside refrigerant piping can cause deterio­ration of refrigerant oil etc.

If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com­pressor.

If large amount of mineral oil enter, that can cause deterio­ration 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 installing or relocation of unit

(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 system with the specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.

Be sure to use a filter drier for new refrigerant.

6

Gravimeter

Unit

[3] Service tools

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

No. Specifications

1

Gauge manifold • Only for R410A

• Use the existing fitting

specifications

. (UNF1/2)

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

2

Charge hose • Only for R410A

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

3

Electronic scale

4

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

5

Adaptor for reverse flow check • Attach on vacuum pump.

6

Refrigerant charge base

7

Refrigerant cylinder • Only for R410A Top of cylinder (Pink)

Cylinder with syphon

8

Refrigerant recovery equipment

[2] Additional refrigerant charge

When charging directly from cylinder

Ensure that the cylinder for R410A is syphon type.
Charging should be performed with the syphon cylinder type stood vertically.
(Refrigerant must be charged from liquid phase.)

7

PART NAMES AND FUNCTIONS

3

•

Indoor Unit

Air intake (sucks the
air inside the room
into the unit)

In case of rear inlet

Air outlet

In case of bottom inlet

(

Only RP35~60EA

)

RP35EA2

8

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

˚F˚C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

ON
OFF

Hr
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 re­mote controller has been prohib­ited 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, shows the time
remaining.

“Sensor” indication

Displayed when the remote controller
sensor is used.

“Locked” indicator

Indicates that remote controller but­tons 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 corre­sponding timer is set.

Up/Down Air Direction indica­tor

The indicator shows the direc­tion of the outcoming airflow.

“One Hour Only” indicator

Displayed if the airflow is set to
weak and downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off after one
hour, at which time the airflow di­rection also changes.

Room Temperature display

Shows the room temperature. The room
temperature display range is 8–39°C.
The display flashes if the temperature
is less than 8 °C or 39 °C or more.

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.

• Remote controller

• Display

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.

MENU

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

Set Temperature buttons

Down
Up

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.

Built-in temperature sensor

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 “Not Available”

message.
If you are using the remote controller to drive multiple indoor units, this message will appear only if the feature is not
present at the parent unit.

● 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.

9

Service Ref.
Power supply

Input kW
Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat
Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

Notes 1. Above data based on indicated voltage

Indoor Unit: Single phase 230V 50Hz
Outdoor Unit: Single phase 230V 50Hz/3 phase 400V 50Hz

INDOOR UNIT

Weight

30Pa
70Pa

Service Ref.
Power supply

Input kW

Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat
Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

INDOOR UNIT

Weight

30Pa
70Pa

Service Ref.
Power supply

Input kW

Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat
Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

INDOOR UNIT

Weight

30Pa
70Pa

Single phase, 50Hz, 220-240V

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

30/70

–

Built in remote controller

R1 (External thread)

935 (36-13/16)

700 (27-5/8)
295 (11-5/8)

33 (73)

0.13

0.55

0.8

0.043

11-14<388-494>

34-38
36-43

0.14

0.61

0.9

0.076

13.5-17<477-600>

36-40
38-44

PEAD-RP35EA PEAD-RP35EA

2

Single phase, 50Hz, 220-240V

0.14

0.61

0.9

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

0.076

13.5-17<477-600>
30/70

–

Built in remote controller

36-40
38-44

R1 (External thread)

935 (36-13/16)

700 (27-5/8)
295 (11-5/8)

35 (77)

PEAD-RP50EA

Single phase, 50Hz, 220-240V

0.16

0.70

1.0

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

0.116

17-21<600-741>

30/70

–

Built in remote controller

37-41
39-46

R1 (External thread)

1,175 (46-1/8)

700 (27-5/8)
295 (11-5/8)

42 (92)

PEAD-RP60EA

SPECIFICATION

4

10

Service Ref.
Power supply

Input kW
Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat
Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

INDOOR UNIT

Weight

70Pa

(130Pa)

Service Ref.
Power supply

Input kW

Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat
Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

INDOOR UNIT

Weight

70Pa

(130Pa)

Service Ref.
Power supply

Input kW

Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat
Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

INDOOR UNIT

Weight

70Pa

(130Pa)

Notes 1. Above data based on indicated voltage

Indoor Unit: Single phase 230V 50Hz
Outdoor Unit: Single phase 230V 50Hz/3 phase 400V 50Hz

Single phase, 50Hz, 220-240V

0.35

1.55

2.0

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

0.15

20-25<706-883>

70/(130)

–

Built in remote controller

37-41
40-45

R1 (External thread)

1,175 (46-1/8)

740 (29-1/8)

325 (12-13/16)

44 (97)

PEAD-RP71EA

Single phase, 50Hz, 220-240V

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

70/(130)

–

Built in remote controller

R1 (External thread)

1,415 (55-11/16)

740 (29-1/8)

325 (12-13/16)

0.57

2.53

3.2

0.24

27-34<953-1,200>

41-46
42-48

62 (136)

0.59

2.62

3.4

0.27

33.5-42<1,183-1,483>

44-50
46-52

65 (143)

PEAD-RP100EA PEAD-RP100EA

2

Single phase, 50Hz, 220-240V

0.59

2.62

3.4

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

0.27

33.5-42<1,183-1,483>
70/(130)

–

Built in remote controller

44-50
46-52

R1 (External thread)

1,415 (55-11/16)

740 (29-1/8)

325 (12-13/16)

65 (143)

PEAD-RP125EA

11

Service Ref.
Power supply

Input kW
Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat
Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

INDOOR UNIT

Weight

70Pa

(130Pa)

Notes 1. Above data based on indicated voltage

Indoor Unit: Single phase 230V 50Hz
Outdoor Unit: Single phase 230V 50Hz/3 phase 400V 50Hz

Single phase, 50Hz, 220-240V

0.61

2.69

3.5

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

0.27

36.5-46<1,288-1,624>
70/(130)

–

Built in remote controller

46-51
47-53

R1 (External thread)

1,715 (67-1/2)

740 (29-1/8)

325 (12-13/16)

70 (154)

PEAD-RP140EA

12

PEAD-RP35EA

PEAD-RP50EA, PEAD-RP35EA2

FAN PERFORMANCE AND CORRECTED AIR FLOW

5

100

80
60
40

(1Pa 0.1mmAq)

20

External static pressure (Pa)

140
120
100

80
60
40

(1Pa 0.1mmAq)

External static pressure (Pa)

20

Fan Performance <30Pa>

Hi

Lo

610121416

8

Air Flow (CMM)

Fan Performance <70Pa>

Hi

Lo

Corrected Air Flow

Cooling

1.1

1.0

0.9

0.8

Correction factor

10 12 14 16 18 20

Air flow (CMM)

Heating

1.3

1.2

1.1

1.0

Correction factor

0.9

0.8
81012141618

Air flow (CMM)

Capacity

input

10 126 8 14 16 18

Air Flow (CMM)

140
120
100

(1Pa 0.1mmAq)

External static pressure (Pa)

160
140
120
100

Fan Performance <30Pa>

80
60
40

20

6 8 10 12 14 16 18 20

Air Flow (CMM)

Fan Performance <70Pa>

80

Hi

Lo

Hi

Corrected Air Flow

Cooling

1.1

1.0

0.9

0.8

Correction factor

810121416182022

Air flow (CMM)

Heating

1.3

1.2

1.1

1.0

Capacity

input

60

(1Pa 0.1mmAq)

40

External static pressure (Pa)

20

8 10121416182022

Lo

Air Flow (CMM)

Correction factor

0.9

0.8

810121416182022

Air flow (CMM)

13

140
120
100

200
180
160

80
60
40
20

12 16 20 24 28 32

Air flow

(CMM)

Fan performance <130Pa>

External static pressure (Pa)

(1Pa 0.1mmAq)

140
120
100

180
160

80
60
40
20

12 16 20 24 28 32

Air flow

(CMM)

Fan performance <70Pa>

External static pressure (Pa)

(1Pa 0.1mmAq)

=

Lo

Hi

Corrected Air Flow

Capacity
Input

1.1

1.0

0.9

0.8

12 16 20 24 28 32

Air flow (CMM)

Correction factor

Cooling

=

Hi

Lo

1.1

1.0

1.3

1.2

0.9

0.8
12 16 20 24 28 32

Air flow (CMM)

Correction factor

Heating

PEAD-RP71EA

PEAD-RP60EA

Fan Performance <30Pa>

120
100

80
60
40

(1Pa 0.1mmAq)

20

External static pressure (Pa)

8 1012141618202224

Fan Performance <70Pa>

140
120
100

80

Lo

Air Flow (CMM)

Corrected Air Flow

Capacity

input

Cooling

1.1

1.0

Hi

0.9

0.8

Correction factor

12 14 16 18 20 22 24 26

Air flow (CMM)

Heating

1.3

1.2

1.1

Hi

1.0
60
40

(1Pa 0.1mmAq)

External static pressure (Pa)

20

10 12 14 16 18 20 22 24 26

Lo

Air Flow (CMM)

Correction factor

0.9

0.8

12 14 16 18 20 22 24 26

Air flow (CMM)