18
PEH-2.5/3/4/5EKH(S)A
2
.TH
1. Since the indoor transformer (T) is connected with 240V power, if 220, 230V power is used.
Change the wiring connection showing fig :
W
1.
when power supply is fig :
W
1
2. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring
for servicing.
3. Indoor and outdoor connecting wires are made with polarities,make wiring matching terminal num-
bers (1 and 2).
4. Symbols used in wiring diagram above are.
/
:Terminal block.
:Connector,
:PC board
insertion tab.
5. Emergency operation
If a trouble occurs with either the remote controller or the indoor microcomputer and no other truble
exists. emergency operation for cooling or heating can be performed by changing the setting of dip
switch (SW3<I.B>) on the indoor controller board.
(emergency dry operation is not possible.)
240
230
220
230V
220V
YELLOW
ORANGE
RED
[Check items]
(1)Make sure that no other trouble exists with the outdoor unit .Trouble with the outdoor unit prevents emer-
gency operation. (If any trouble exists with the outdoor unit error code “P8”will be displayed on the remote
controller and the trouble position will be shown on the outdoor controller board LED. See electric wiring
diagram of the outdoor unit for details.)
(2)Make sure that there is no trouble with the indoor fan.
Emergency operation will be a continuous run with the power ON/OFF (ON/OFF with the remote controller
is not possible).
[Emergency operation procedure]
(1) Set the dip switch (SW3<I.B>) on the indoor controller board to
1
•
2
•
3
on and
4
off for cooling, and
2
•
3
•
4
on and
1
off for heating.
(2) Turn on the outdoor unit side circuit breaker.
(3) During emergrncy operation indoor fan runs at High speed.
(4) Thermostat will not function. Cold air blows out for defrosting during heating thus do not operate defrost-
ing for a long time.
(5) Emergency cooling should be limited to 10 hours maximum(the indoor unit heat exchanger may freeze).
1
2
3
1
2
3
2
1
3
5
3
2
1
4
5
AO1
BO2
BLU
RED
RED
88H
FS
H
T
C
S
R
26H
RED
BLU
GRN/YLW
BLU
BLU
BRN
ORN
YLW
YLW
ORN
RED
RED
RED
BLU
YLW
YLW
YLW
YLW
YLW
WHT
ORN
RED
BRN
BRN
BRN
WHT
I.B
TB6
TB5
TB4
TB2
R.B
SW18
CN51
CENTRALLY
CONTROL
CN21
PIPE
DRAIN CN50
HEATER
CN24
CN1
14.5VAC
10.8VAC
CN2
4 3 2 1
ON
OFF
SW17
4 3 2 1
8 7 6 5
ON
OFF
SW3
4 3 2 1
SW6
4 3 2 1
SW5
4 3 2 1
SW2
4 3 2 1
5 6
SW1
4 3 2 1
8 7 6 5
1 0 9
OFF
ON
INDOOR UNIT
REMOTE CONTROLLER
TRANSMISSION WIRES DC12V
TO OUTDOOR UNIT
CONNECTING WIRES
DC 12V(polar)
POWER SUPPLY
~ (1 PHASE)
AC220~240V
50Hz
L
N
1
2
MF
88H
3
1
2
4
5
6
6 5
2 1
2 1
CN20
INTAKE
TRANS
CN4T
OUTDOOR
CN30
2 1
2
3
1
2
3
4
1
REMOCON
POWER
CN40
TO
REMOCON
CN22
CN2L
LOSSNAY
2
3
4
1
2
3
4
5
1
6
BLU
BRN
BLK
WHT
RED
ORN
X6
X5
X4
X6 X5 X4
ZNR
RT1
RT2
F
TRANS
M3
M2 M1
M0
SYMBOL
C
CN1<R.B>
CN2<R.B>
CN2L<I.B>
CN51<I.B>
F<I.B>
FS
H
I.B
LCD
MF
R.B
SW1<I.B>
SW2<I.B>
SW3<I.B>
SW5<I.B>
SW6<I.B>
NAME
FAN MOTOR CAPACITOR
PROGRAM TIMER CONNECTOR
REMOTE SWITCH CONNECTOR
LOSSNAY CONNECTOR
CENTRALLY CONTROL CONNECTOR
FUSE 16.3A 250V
THERMAL FUSE
ELECTRIC HEATER
INDOOR CONTROLLER BOARD
LIQUID CRYSTAL DISPLAY
INDOOR FAN MOTOR
REMOTE CONTROLLER BOARD
MODE SELECTOR
ADDRESS SELECTOR
EMERGENCY OPERATION SWITCH
MODEL SELECTOR
MODEL SELECTOR
SYMBOL
SW17<R.B>
SW18<R.B>
T
TB2
TB4
TB5.6
RT1
RT2
X4<I.B>
X5<I.B>
X6<I.B>
ZNR<I.B>
88H
NAME
ADDRESS SELECTOR
FUNCTION SELECTOR
TRANSFORMER
POWER SUPPLY TERMINAL BLOCK
INDOOR/OUTDOOR CONNECTING WIRE
TERMINAL BLOCK
REMOTE CONTROLLER TRANSMISSION
LINE TERMINAL BLOCK
ROOM TEMPERATURE THERMISTOR
(0
:
/15kΩ. 25
:
/5.4kΩ)
INDOOR COIL THERMISTOR
(0
:
/15kΩ. 25
:
/5.4kΩ)
FAN MOTOR AUXILIARY RELAY
FAN MOTOR AUXILIARY RELAY
FAN MOTOR AUXILIARY RELAY
VARISTOR
ELECTRIC HEATER CONTACTOR
SYMBOL
26H
NAME
OVER HEAT PREVENTION THERMAL
SWITCH
WIRING DIAGRAM
6
