Mitsubishi PEA-RP200GA, PEA-RP250GA, PEA-RP400GA, PEA-RP500GA Service Manual
SERVICE MANUAL
• This manual describes only
service data of the indoor
units.
[Model names]
PEA-RP200GA
PEA-RP250GA
PEA-RP400GA
PEA-RP500GA
CONTENTS
1.
TYPES OF CONNECTED OUTDOOR UNITS
····2
2. SAFETY PRECAUTION···································3
3. PART NAMES AND FUNCTIONS····················8
4. SPECIFICATIONS··········································10
5. DATA ·······························································11
6. OUTLINES AND DIMENSIONS·····················13
7. WIRING DIAGRAM ········································16
8. REFRIGERANT SYSTEM DIAGRAM············18
9. TROUBLESHOOTING ···································19
10. SERVICE DATA (PARTS NAME)···················30
Indoor unit
Remote controller
SPLIT-TYPE, HEAT PUMP
AIR CONDITIONERS
2007
2
1 TYPES OF CONNECTED OUTDOOR UNITS
Indoor Unit List
Indoor unit Outdoor unit
PEA - RP200GA
PEA - RP250GA
PEA - RP400GA
PEA - RP500GA
PUHZ-BP200YHA
PUHZ-BP250YHA
PUHZ-BP200YHA x 2
PUHZ-BP250YHA x 2
Standard Model
Steel fan
PEA-RP200GA
PEA-RP250GA
PEA-RP400GA
PEA-RP500GA
PEA-RP200GA.TH-AF
PEA-RP250GA.TH-AF
PEA-RP400GA.TH-AF
PEA-RP500GA.TH-AF
PEA-RP200GA.TH-AFMF
PEA-RP250GA.TH-AFMF
-
-
Model name
Specification
3
SAFETY PRECAUTION
2
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.
á Be sure to perform replacement operation
before test run.
á 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.
4
[2] Storage of Piping Material
(1) Storage location
Store the pipes to be used indoors. (Warehouse at site or ownerÕs warehouse)
Storing them outdoors may cause dirt, waste, or water to infiltrate.
(2) Pipe sealing before storage
Both ends of the pipes should be sealed until immediately before brazing.
Wrap elbows and TÕs in plastic bags for storage.
* The new refrigerator oil is 10 times more hygroscopic than the conventional refrigerator oil (such as Suniso). Water
infiltration in the refrigerant circuit may deteriorate the oil or cause a compressor failure. Piping materials must be stored
with more care than with the conventional refrigerant pipes.
OK
OK
NG
NG
5
[3] Brazing
No changes from the conventional method, but special care is required so that foreign matter (ie. oxide scale, water, dirt,
etc.) does not enter the refrigerant circuit.
Example: Inner state of brazed section
When non-oxide brazing was not used When non-oxide brazing was used
Items to be strictly observed:
1. Do not conduct refrigerant piping work outdoors on a rainy day.
2. Apply non-oxide brazing.
3. Use a brazing material (BCuP-3) which requires no flux when brazing between copper pipes or between a copper
pipe and copper coupling.
4. If installed refrigerant pipes are not immediately connected to the equipment, then braze and seal both ends of them.
Reasons:
1. The new refrigerant oil is 10 times more hygroscopic than the conventional oil. The probability of a machine failure if
water infiltrates is higher than with conventional refrigerant oil.
2. A flux generally contains chlorine. A residual flux in the refrigerant circuit may generate sludge.
Note:
¥ Commercially available antioxidants may have adverse effects on the equipment due to its residue, etc. When
applying non-oxide brazing, use nitrogen.
6
[4] Airtightness Test
No changes from the conventional method. Note that a refrigerant leakage detector for R22 cannot detect R407C leakage.
Halide torch R22 leakage detector
Items to be strictly observed:
1. Pressurize the equipment with nitrogen up to the design pressure and then judge the equipmentÕs airtightness, taking
temperature variations into account.
2. When investigating leakage locations using a refrigerant, be sure to use R407C.
3. Ensure that R407C is in a liquid state when charging.
Reasons:
1. Use of oxygen as the pressurized gas may cause an explosion.
2. Charging with R407C gas will lead the composition of the remaining refrigerant in the cylinder to change and this
refrigerant can then not be used.
Note:
¥ A leakage detector for R407C is sold commercially and it should be purchased.
[5] Vacuuming
1. Vacuum pump with check valve
A vacuum pump with a check valve is required to prevent the vacuum pump oil from flowing back into the refrigerant
circuit when the vacuum pump power is turned off (power failure).
It is also possible to attach a check valve to the actual vacuum pump afterwards.
2. Standard degree of vacuum for the vacuum pump
Use a pump which reaches 0.5 Torr (500 MICRON) or below after 5 minutes of operation.
In addition, be sure to use a vacuum pump that has been properly maintained and oiled using the specified oil. If the
vacuum pump is not properly maintained, the degree of vacuum may be too low.
3. Required accuracy of the vacuum gauge
Use a vacuum gauge that can measure up to 5 Torr. Do not use a general gauge manifold since it cannot measure a
vacuum of 5 Torr.
4. Evacuating time
¥ Evacuate the equipment for 1 hour after Ð755 mmHg (5 Torr) has been reached.
¥ After envacuating, leave the equipment for 1 hour and make sure the that vacuum is not lost.
5. Operating procedure when the vacuum pump is stopped
In order to prevent a backflow of the vacuum pump oil, open the relief valve on the vacuum pump side or loosen the
charge hose to drawn in air before stopping operation.
The same operating procedure should be used when using a vacuum pump with a check valve.
NG
NG
7
[6] 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.)
[7] 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
Gravimeter
Unit
8
3
PART NAMES AND FUNCTIONS
● Remote controller
Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
● Operation buttons
● Indoor Unit
PEA-RP200GA
PEA-RP250GA
PEA-RP400GA
PEA-RP500GA
Air intake duct flange
Air outlet duct flange
Air outlet
Air intake
(sucks the air inside the room into the unit)
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.
9
● 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
˚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.
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 “Not Available”
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 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.
10
4
SPECIFICATIONS
Model name
Cooling
1.00
1.8
Heating
1.00
1.8
H
W
D
Hi
Lo
kW
A
CMM
L/s
CMM
L/s
Pa
mmAq
dB(A)
dB(A)
mm
mm
mm
kg
lbs
PEA-RP200GA PEA-RP250GA
3PH 4W 50Hz 380-415V
Galvanized steel
Cross fin coil
Centrifugal (direct) o2
0.77
65
1083
52
867
150
15
Remote control & built in
51
48
R1
400
1400
634
70
154
Cooling
1.10
2.1
Heating
1.10
2.1
3PH 4W 50Hz 380-415V
Galvanized steel
Cross fin coil
Centrifugal (direct) o2
0.77
80
1333
64
1067
150
15
Remote control & built in
52
49
R1
400
1600
634
77
169
Power supply (phase, cycle,voltage)
Input
Running current
External finish
Heat exchanger
Operation control & Thermostat
Sound level
Drain connection
Dimensions
Weight
Mode
Fan (drive) o No.
Fan motor output
Airflow
External static pressure
Hi
Lo
Model name
Cooling
1.55
3.8
Heating
1.55
3.8
H
W
D
kW
A
CMM
L/s
Pa
mmAq
dB(A)
mm
mm
mm
kg
lbs
PEA-RP400GA PEA-RP500GA
3PH 4W 50Hz 380-415V
Galvanized steel
Cross fin coil
Centrifugal (direct) o2
1.3
120
2,000
150
15
Remote control & built in
52
R1
595
1947
764
130
286
Cooling
2.84
5.4
Heating
2.84
5.4
3PH 4W 50Hz 380-415V
Galvanized steel
Cross fin coil
Centrifugal (direct) o2
1.8
160
2,667
150
15
Remote control & built in
53
R1
595
1947
764
133
293
Power supply (phase, cycle,voltage)
Input
Running current
External finish
Heat exchanger
Operation control & Thermostat
Sound level
Drain connection
Dimensions
Weight
Mode
Fan (drive) o No.
Fan motor output
Airflow
External static pressure
Fan
Fan
11
DATA5
5-1. Sound Data
Indoor units
Indoor unit
Position measurement
Measurement point
Inlet
Outlet
1.5m
2m
1m
PEA-RP200,250: Upper High/Lower Low
SPL
dB(A) 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz
51 55 54 51 49 47 43 33 27
48 50 50 47 46 44 40 29 21
52 56 55 52 50 48 44 34 28
49 51 51 48 47 45 41 30 22
53 55 54 51 50 48 44 40 31
52 53 51 52 50 46 44 39 30
PEA-RP200GA
PEA-RP250GA
PEA-RP500GA
PEA-RP400GA
Model
OCTAVE BAND FREQ.Hz
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