Mitsubishi HWE05070 Service Manual
SERVICE MANUAL
<indoor unit> Service ref.
Models
PEHD-P35EAH
PEHD-P50EAH
PEHD-P60EAH
PEHD-P71EAH
PEHD-P100EAH
PEHD-P125EAH
PEHD-P140EAH
TM
1. REFERENCE MANUAL ····························· 1
2. SAFETY PRECAUTION ···························· 2
3. PART NAMES AND FUNCTIONS ············· 4
4. SPECIFICATION ······································· 6
5. FAN PERFORMANCE AND
CORRECTED AIR FLOW ························ 8
6. OUTLINES & DIMENSIONS ···················· 12
7. WIRING DIAGRAM ·································· 14
8. REFRIGERANT SYSTEM DIAGRAM ······ 15
9. TROUBLESHOOTING ···························· 16
10
. DISASSEMBLY INSTRUCTIONS ············ 28
11
. PARTS LIST ············································· 30
12
. OPTIONAL PARTS ·································· 36
CONTENTS
INDOOR UNIT
REMOTE CONTROLLER
ON/OFF
TEMP.
Series PEHD
/
PEAD
R407C
2005
SPLIT-TYPE, HEAT PUMP
AIR CONDITIONERS
NOTE:
• This manual describes only
service data of the indoor
units.
1
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
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
OCS02
1-2. TECHNICAL DATA BOOK
2
SAFETY PRECAUTION
2
[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
3
[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.
4
PART NAMES AND FUNCTIONS
3
● Indoor Unit
In case of rear inlet
Air intake (sucks
the air inside the
room into the
unit)
Air outlet
In case of bottom inlet
(Only P35~60EAH)
A
A
5
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 indica-
tion (For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.
6
4
SPECIFICATION
INDOOR UNIT
Service Ref. PEHD-P35EAH PEHD-P50EAH
Power supply Single phase,50Hz,220-240V
Input ✻1 kW 0.13 0.13 <1.13> 0.15 0.15 <1.15>
Running current ✻1 A 0.55 0.55 <4.71> 0.63 0.63 <4.79>
External finish Galvanized sheets
Heat exchanger Plate fin coil
Fan
Booster heater ✻1 kW <1.0> <1.0>
Operation control & Thermostat Built in remote controller
Noise level (Lo-Hi) dB 34-38 36-40
Unit drain pipe O.D mm (in.) 32 (1-1/4)
Dimensions
Weight kg (lbs) 35 (77) 35 (77)
Starting current ✻1A ––––
Fan (drive) × No. Centrifugal (direct) × 2
Fan motor output kW 0.043 (at 70 Pa) 0.076 (at 70 Pa)
Airflow (Lo-Hi)
External static pressure Pa (mmAq) 30/70
W mm (in.) 935 (36-13/16)
D mm (in.) 700 (27-5/8)
H mm (in.) 295 (11-5/8)
3
m
/min (CFM)
Cooling Heating Cooling Heating
11-14 <388-494> 13.5-17 <477-600>
Service Ref.
Power supply
Input ✻1kW
Running current ✻1A
External finish
Heat exchanger
Fan
INDOOR UNIT
Booster heater ✻1kW
Operation control & Thermostat
Noise level (Lo-Hi) dB
Unit drain pipe O.D mm (in.)
Dimensions
Weight
Service Ref.
Power supply
External finish
Heat exchanger
Fan
INDOOR UNIT
Booster heater ✻1kW
Operation control & Thermostat
Noise level (Lo-Hi) dB
Unit drain pipe O.D mm (in.)
Dimensions
Weight kg (lbs)
Notes 1. Above data based on indicated voltage
Starting current ✻1A
Fan (drive) × No.
Fan motor output kW
Airflow (Lo-Hi)
External static pressure Pa (mmAq)
W mm (in.)
D mm (in.)
H mm (in.)
Input ✻1kW
Running current ✻1A
Starting current ✻1A
Fan (drive) × No.
Fan motor output kW
Airflow (Lo-Hi)
External static pressure Pa (mmAq)
W mm (in.)
D mm (in.)
H mm (in.)
Indoor Unit: Single phase 240V 50Hz
Outdoor Unit: Single phase 240V 50Hz / 3 phase 415V 50Hz
3
m
/min (CFM)
kg (lbs)
3
m
/min (CFM)
PEHD-P60EAH
Cooling Heating
PEHD-P71EAH PEHD-P100EAH
Cooling Heating Cooling Heating
0.40 0.40 <2.50> 0.62 0.62 <3.02>
1.70 1.70 <10.41> 2.64 2.64 <12.58>
–– ––
20-25 <706-883> 27-34 <953-1,200>
1,175 (46-1/8) 1,415 (55-11/16)
46 (101) 65 (143)
Single phase,50Hz,220-240V
0.17 0.17<1.67>
0.72 0.72<6.96>
––
0.15 0.27
<2.1> <2.4>
37-41 41-46
Galvanized sheets
Plate fin coil
Centrifugal (direct) × 2
0.116 (at 70 Pa)
17-21<600-741>
30/70
<1.5>
Built in remote controller
37-41
32 (1-1/4)
1,175 (46-1/8)
700 (27-5/8)
295 (11-5/8)
44 (97)
Single phase,50Hz,220-240V
Galvanized sheets
Plate fin coil
Centrifugal (direct)
70 (130)
Built in remote controller
32 (1-1/4)
740 (29-1/8)
325 (12-13/16)
× 2
7
Service Ref. PEHD-P125EAH PEHD-P140EAH
Power supply Single phase,50Hz,220-240V
Input ✻1 kW 0.64 0.64 <3.64> 0.66 0.66< 3.66>
Running current ✻1 A 2.72 2.72 <15.17> 2.79 2.79 <15.24>
External finish Galvanized sheets
Heat exchanger Plate fin coil
Fan
INDOOR UNIT
Booster heater ✻1 kW <3.0> <3.0>
Operation control & Thermostat Built in remote controller
Noise level (Lo-Hi) dB 44-50 46-51
Unit drain pipe O.D mm (in.) 32 (1-1/4)
Dimensions
Weight kg (lbs) 68 (150) 73 (161)
Notes 1. Above data based on indicated voltage
Starting current ✻1A ––––
Fan (drive) × No. Centrifugal (direct) × 2
Fan motor output kW 0.40
Airflow (Lo-Hi)
External static pressure Pa (mmAq) 70 (130)
W mm (in.) 1,415 (55-11/16) 1,715 (67-1/2)
D mm (in.) 740 (29-1/8)
H mm (in.) 325 (12-13/16)
Indoor Unit: Single phase 240V 50Hz
Outdoor Unit: Single phase 240V 50Hz / 3 phase 415V 50Hz
3
m
/min (CFM)
Cooling Heating Cooling Heating
33.5-42 <1,183-1,483> 36.5-46 <1,288-1,624>
8
PEHD-P35EAH
PEHD-P50EAH
5
FAN PERFORMANCE AND CORRECTED AIR FLOW
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
8
610121416
Air Flow (CMM)
Fan Performance <70Pa>
Hi
Lo
Corrected Air Flow
Cooling
1.1
1.0
0.9
0.8
Correction factor
6810121416
Air flow (CMM)
Heating
1.3
1.2
1.1
1.0
Correction factor
0.9
0.8
6 8 10 12 14 16
Air flow (CMM)
Capacity
input
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
Fan Performance <70Pa>
80
10 126 8 14 16 18
Hi
Lo
Air Flow (CMM)
Hi
Corrected Air Flow
Cooling
1.1
1.0
0.9
0.8
Correction factor
8 10121416 18 20 22
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
8 10121416 18 20 22
Air flow (CMM)
9
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
1.1
1.0
1.3
1.2
0.9
0.8
12 16 20 24 28 32
Air flow (CMM)
Correction factor
Heating
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
=
Hi
Lo
PEHD-P71EAH
PEHD-P60EAH
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)
10
PEHD-P100EAH
PEHD- P125EAH
Fan performance <130Pa>
200
180
160
140
120
100
80
=
60
Lo
40
(1Pa 0.1mmAq)
20
External static pressure (Pa)
26 28 30 32 34 36 38 40
Air flow
Corrected Air Flow
Cooling
1.1
(CMM)
Hi
Capacity
Input
Fan performance <70Pa>
220
200
180
160
140
120
100
80
=
60
40
(1Pa 0.1mmAq)
20
External static pressure (Pa)
24 26 28 30 32 34 36 38
Air flow
Heating
1.2
1.1
Hi
Lo
(CMM)
1.0
0.9
Correction factor
0.8
24 26 28 30 32 34 36 38 40
Air flow (CMM)
Fan performance <130Pa>
220
200
180
160
140
120
100
80
=
60
(1Pa 0.1mmAq)
40
20
External static pressure (Pa)
Lo
32 34 36 38 40 42 44 46 48
Air flow
(CMM)
Hi
1.0
0.9
Correction factor
0.8
24 26 28 30 32 34 36 38 40
Air flow (CMM)
Fan performance <70Pa>
220
200
180
160
140
120
100
80
=
60
(1Pa 0.1mmAq)
40
20
External static pressure (Pa)
32 34 36 38 40 42 44 46
Air flow
Hi
Lo
(CMM)
Corrected Air Flow
Cooling
1.1
1.0
0.9
Correction factor
0.8
32 34 36 38 40 42 44 46 48
Air flow (CMM)
Capacity
Input
Heating
1.2
1.1
1.0
0.9
Correction factor
0.8
32 34 36 38 40 42 44 46 48
Air flow (CMM)
11
PEHD-P140EAH
Fan performance <130Pa>
220
200
180
160
140
120
100
=
80
60
(1Pa 0.1mmAq)
40
20
External static pressure (Pa)
Lo
36
38 40 42 44 46 48 50
Air flow
Hi
52
(CMM)
Corrected Air Flow Capacity
Cooling
1.1
1.0
0.9
Correction factor
0.8
36 38 40 42 44 46
Input
48 50
Air flow (CMM)
52
Fan performance <70Pa>
200
180
160
140
120
=
100
80
(1Pa 0.1mmAq)
60
40
External static pressure (Pa)
20
Lo
36
38 40 42 44 46 48
Air flow
(CMM)
Heating
1.2
1.1
1.0
0.9
Correction factor
0.8
36 38 40 42 44 46
Air flow (CMM)
Hi
50
48
50 52
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