Mitsubishi Electric Mr.SLIM PC-2GAKD Operating manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, COOLING AIR CONDITIONERS
CONTENTS
1. PART NAMES AND FUNCTIONS········2
2. SPECIFICATIONS·································4
3. DATA·····················································9
4. OUTLINES AND DIMENSIONS··········16
5. WIRING DIAGRAM·····························21
6. REFRIGERANT SYSTEM DIAGRAM ······22
7. TROUBLE SHOOTING·······················27
8. FUNCTION SETTING ·························40
9. SYSTEM CONTROL···························46
10. DISASSEMBLY PROCEDURE···········60
11. PARTS LIST········································65
12. RoHS PARTS LIST·····························73
13. OPTIONAL PARTS·····························81
Indoor unit
PC-2GAKD
PC-2.5GAKD
PC-3GAKD
PC-4GAKD
PC-5GAKD
PC-6GAKD
No. OC382
REVISED EDITION-B
[ Model names] PC-2GAKD
PC-2.5GAKD
PC-3GAKD
PC-4GAKD
PC-5GAKD
PC-6GAKD
[Service Ref.]
INDOOR UNIT
Ceiling Suspended
Series PC
REMOTE CONTROLLER
February 2008
ON/OFF
TEMP.
Note:
• This manual does not cover the out-
door units. When serving outdoor
units, please refer to the service man-
ual No.OC152, OC206, OC353,
OCH/OCB414, OCH/OCB431 and
this manual in a set.
• RoHS compliant products have <G>
mark on the spec name plate.
• For servicing RoHS compliant prod-
ucts, refer to the RoHS Parts List.
Revision:
• Combination of outdoor units (PU-
3/4VAKR type) has been added in
REVISED EDITION-B.
• Some descriptions have been modified.
•Please void OC382 REVISED
EDITION-A.
OC382B--1.qxp 08.2.19 8:28 AM Page 1

2
1PART NAMES AND FUNCTIONS
● Indoor Unit
Air outlet
Intake grille Air intake
Left/right guide vanes
Change the direction of airflow
from the horizontal blower.
Long-life filter
Removes dust and foreign matter from air coming in
through the grille (Recommended cleaning interval :
Approx, every 2,500 operating hours).
Up/down guide vanes
Change the direction of airflow from the
vertical blower.
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
Temperature setting 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
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
Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
● Wired remote controller
OC382B--1.qxp 08.2.19 8:28 AM Page 2

3
˚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
●
●
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
The indicator shows the direc-
tion 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.
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 simultaneously operate multiple indoor units that are different types, this message will not be displayed as
far as any of the indoor units is equipped with the function.
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 1 hour,
when the airflow direction also
changes.
OC382B--1.qxp 08.2.19 8:28 AM Page 3

4
2SPECIFICATIONS
Notes : w1. Rating condition (JISB8616)
Indoor : D.B 27
O
C (80
O
F) , W.B. 19
O
C (66
O
F)
Outdoor : D.B 35
O
C (95
O
F) , W.B. 24
O
C (75
O
F)
Refrigerant piping length (one way) : 5m (16ft)
w2. Total input based indicated voltage (In/Out)
w3. The capacity of crankcase heater (W) shows the
case of 220V.
w4. Rating condition (SSA385, 386)
Indoor : D.B 29
O
C (84
O
F) , W.B. 19
O
C (66
O
F)
Outdoor : D.B 46
O
C (115
O
F), W.B. 24
O
C (75
O
F)
Refrigerant piping length (one way ) : 5m (16ft)
w5. Inner thermostat, HP switch, LP switch
w6. Thermal switch, Reversed-phase protector, HP switch,
LP switch, Thermal relay
w7. Thermal switch, HP switch, LP switch, Inner thermostat
w8. Thermal switch, HP switch, Inner thermostat
w9. PU-3J-type···PU-3VJC1.TH, PU-3YJC.TH, PU-3NJA.TH
w10.PU-4JSA-type···PU-4VLJSA2.TH, PU-4YJSA1.TH,
PU-4TJSA.TH
2-1. STANDARD SPECIFICATIONS
Service Ref.
External finish
Fan motor output
Airflow Low-High
External static pressure
Operation control & Thermostat
Noise level Low-High
Cond. drain connector
Dimensions
Weight
Service Ref.
External finish
Refrigerant (R-22) control
Crankcase Heater w3
Compressor output
Protection devices
Fan motor output
Airflow
Noise level
Dimensions
Weight
W
Btu/h
W
Btu/h
W
Btu/h
K /min
CFM
K /min
CFM
Pa(mmAq)
dB
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs.)
W
kW
kW
K/min(CFM)
K/min(CFM)
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs.)
50Hz
60Hz
60Hz
50Hz
60Hz
50Hz
60Hz
O.D.
W
D
H
50/60Hz
50/60Hz
50Hz
60Hz
50/60Hz
W
D
H
Munsell 0.70Y 8.59/0.97
0 (Direct blow)
Remote control & Built-in
Munsell 3.0Y 7.8/1.1
Capillary tube
295+24 (11-5/8 add 1)
10,300
35,200
11,400
39,000
9,300
31,700
3.49/4.47
PC-4GAKD
0.09
20-25
706-883
20-25
706-883
40-45
40-45
26 (1)
1310 (51-9/16)
680 (26-3/4)
270 (10-5/8)
37 (82)
w10 PU-4JSA-type
32/38
2.7/2.7
w7(V)/w6(Y,T)
0.065+0.065
95 (3352)
95 (3352)
54/55
870 (34-1/4)
1258 (49-1/2)
94 (207)
Cooling capacity w1
Cooling capacity w4
Total input (50/60Hz) w2
Item Service Ref. PC-4GAKD
7,600
25,900
8,200
28,000
6,500
22,200
3.30/3.60
PC-3GAKD
0.07
14-18
494-635
14-18
494-635
37-43
37-43
26 (1)
1310 (51-9/16)
680 (26-3/4)
210 (8-1/4)
34 (75)
w9 PU-3J-type
32/38
2.2/2.2
w5
0.085
50 (1765)
50 (1765)
52/53
870 (34-1/4)
850 (33-7/16)
73 (161)
PC-3GAKD
6,500
22,200
7,000
23,900
6,200
21,200
2.58/3.07
PC-2.5GAKD
0.07
14-18
494-635
14-18
494-635
37-43
37-43
26 (1)
1310 (51-9/16)
680 (26-3/4)
210 (8-1/4)
34 (75)
PU-2.5VJA1.TH/
PU-2.5NJA.TH
32/-
2.0/1.7
w5
0.085
50 (1765)
50 (1765)
52/53
870 (34-1/4)
850 (33-7/16)
71 (157)
PC-2.5GAKD
5,600
19,100
5,600
19,100
4,300
14,700
2.54/2.60
PC-2GAKD
0.054
10-13
353-459
10-13
353-459
37-42
37-42
26 (1)
1000 (39-3/8)
680 (26-3/4)
210 (8-1/4)
27 (60)
PU-2VJA1.TH/
PU-2NJA.TH
32/-
2.0/1.5
w5
0.065
45 (1588)
45 (1588)
49/50
870 (34-1/4)
650 (25-5/8)
60 (132)
PC-2GAKD
Indoor unitOutdoor unit
Models PC-2,2.5,3 PC-4,5,6
50Hz 1ph220V / 1ph220V 1ph220V / 3ph380V
60Hz 1ph220V / 1ph220V
1ph220V / 3ph220V
OC382B--1.qxp 08.2.19 8:28 AM Page 4

5
Service Ref.
External finish
Fan motor output
Airflow Low-High
External static pressure
Operation control & Thermostat
Noise level Low-High
Cond. drain connector
Dimensions
Weight
Service Ref.
External finish
Refrigerant (R-22) control
Crankcase Heater w3
Compressor output
Protection devices
Fan motor output
Airflow
Noise level
Dimensions
Weight
W
Btu/h
W
Btu/h
W
Btu/h
K/min
CFM
K/min
CFM
Pa(mmAq)
dB
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs.)
W
kW
kW
K/min(CFM)
K/min(CFM)
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs.)
50Hz
60Hz
60Hz
50Hz
60Hz
50Hz
60Hz
O.D.
W
D
H
50/60Hz
50/60Hz
50Hz
60Hz
50/60Hz
W
D
H
Munsell 0.70Y 8.59/0.97
0 (Direct blow)
Remote control & Built-in
Munsell 3.0Y 7.8/1.1
Capillary tube
15,200
51,900
15,600
53,300
13,400
45,700
5.31/6.41
PC-6GAKD
0.15
27-34
953-1,200
27-34
953-1,200
42-48
42-48
26(1)
1,620(63-3/4)
680(26-3/4)
270(10-5/8)
45(99)
PU-6YJSA1.TH PU-6TJSA.TH
—
4.2 4.0
w8 w7
0.10+0.10
100(3530)
100(3530)
56
970(38-3/16)
345+24(13-9/16+1)
1,258(49-1/2)
117(258)
Cooling capacity w1
Cooling capacity w4
Total input (50/60Hz) w2
Item Service Ref. PC-6GAKD
13,300
45,400
14,200
48,500
11,600
39,600
PC-5GAKD
0.15
27-34
953-1,200
27-34
953-1,200
41-46
41-46
26(1)
1,620(63-3/4)
680(26-3/4)
270(10-5/8)
43(95)
PU-5YJSA1.TH PU-5TJSA.TH
—
3.5
w8 w7
0.10+0.10
100(3530)
100(3530)
55
970(38-3/16)
345+24(13-9/16+1)
1,258(49-1/2)
114(251)
PC-5GAKD
Indoor unitOutdoor unit
4.76/5.89
OC382B--1.qxp 08.2.19 8:28 AM Page 5