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MODELS:PU24/30/36EK-I, PU42EK2-I, P U L 2 4 E K - I WIRING DIAGRAM
C
COMPRESSOR CAPACITOR
L D l -LD8
LED (CHECK, SERVICE)
TH3
OUTDOOR COIL THERMISTOR
C3 4
FAN CAPACITOR
M C
COMPRESSOR (INNER THRMOSTAT)
X I 1
(0
B)
CRANK CASE HEATER RELAY
C H
CRANKCASE HEATER
MF1.2
O U T D O O R F A N M O T O R (INNER THRMOSTAT)
X12
(0
B)
COMPRESSOR RELAY
CN3
(0
B)
CONNECTOR (CONNECTING WIRES
0
B
OUTDOOR CONTROLLER BOARD
ZN R
VARISTOR
INDOOR OUTDOOR)
SW1 2 310 B)SELECTSWlTCH (CHECK. SERVICE)
52C
CONTACTOR
CN4T
(0
B) CONNECTOR (TRANSFORMER)
T
TRANSFORMER
63H2
HIGH PRESSURE SWITCH (PROTECT)
FC (0 B>
FAN CONTROLLER
F
(0
B>
FUSE t6A)
F R O M
INDOOR
UNI T
. .
.
- I -
CONNECING
W I R E S
.
2@=
12V DC
lpolarl
TH3
I' U WCR
S U P P L Y
2 0 8 / 2 3 0 V
I
o n a s e
6
0
~
~
TB 1
TERMINAL BLOCKtPOWER SUPPLY)
R
RESISTOR
(PU42EK2-1)
7 8 3
TERMINAL BLOCK (CONNECTING
C5
COMPRESSOR START CAPACITOR (PU42EK2 1)
WIRES INDOOR/OUTDOOR>
19
COMPRESSOR START RELAY
(PU42EK2
1)
Mam funct~ons of LED
( w h e n b o t h
Nos 1
and
2
o f
[SW3]
are
'OFF
-
-
Output dlspldv (steddy Iiqht)
LED NO
L
-
Check dlsplay (flash~ng)
- -
- -
LD1
Compressor ~ndoor command
--
- -
- -
- -
- -
A
TH3 short open
-
--
- -
- - -
63H2 functions
t -
-
- -
2
-
-
LD6
-
- -
- -
- -
--
*
- -
LD8
Crankcase heater ON
Defect~ve ~ n p u t
R E D
NOTE
If the operatton stops to functlon of the protection dev~ce the check dlsplay flashes
How to use SW1 and 2
OPresslng
[FCC
-
erases the pdst check contents loaded on the rnlcro
computer
.The
output d~spla) (I~ght) remams durlng operatlon but pressmg SW2
dlsplays the past check contents In flash~ng mode Presslriq the sw~tcli
again returns to output display (Ilghti
WN
FORSERVLNG-;
Whirr
cunnertor
.The
connector marked
-
1
1 s to turn the compressor ON OFF durlrig servicinq
The compressor stops by disconnecting the whlte connector as shown at the nght
-
- -
&
When
power Supply
IS
208V
EAUTIONS
-
FOR
- -
POWER SUF~LY
W I R ~ N G
OStnce LD8 lhahts when normal w w e r
IS
tumed ON
check the Dower suuulv with the ON or OFF
LD8
aSlnce the Indoor transformer (T) is connected wlth 230V power ~f 208V power
IS
used chanqe the wlnng
connection In the follow~nq Procedure
OSlnce the Indoor and outdoor
connecting
wlres has polanty make sure to connect the same terminal numbers 1 1 21 for tndoor and outdoor unlts
56
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