18
Symbol
Name
Symbol
Name
Symbol
Name
MC
Compressor motor
CR1,2
Surge killer
CH
Crankcase heater
MF1
Fan motor (indoor)
63H
High-pressure switch
T1,2
Timer (defrost)
MF2
Fan motor (outdoor)
FZ
Auxiliary relay (fan)
21S4
4-way valve
52C
Contactor (compressor)
CZ
Auxiliary relay (compressor)
C03,04,05,11-15
Connector
52F
Contactor (fan I/D)
30CZ,FZ
Auxiliary relay (check)
X1
Contactor (fan O/D)
TB1~3
Terminal block
<SW1>
Switch (Operation mode)
X2
Auxiliary relay (defrost)
F1, F2
Fuse (3.15A)
<SW2>
Switch (on)
26D
Thermostat (defrost)
Tr
Transformer
<23WA>
Thermostat (room temp.)
HZ
Auxiliary relay (4-way valve)
51C
Over current relay (compressor)
49F
Internal protector (fan O/D)
SV
Solenoid valve
51F1,2
Over current relay (fan I/D,O/D)
49C
Internal thermostat compressor
Note : 1. The dotted lines show field wiring
2. The figure in the parentheses show field supply parts.
3. Color of earth wire is yellow and green twisting.
4. If the power supply is 380AV, change the “C03”
connector with silver color tape to red color tape
5. Refer below example about wiring mark
Controller connection.
Symbol
No. Function
PAC-204RC
terminal no.
1
Power (Active)
24VAC(L)
3
Cooling or heating operation
COMP1
4
Reversing valve for heating operation
4WV
5
Fan operation
FAN HI
TB2
6
Power (Neutral)
24VAC(N)
Caution,
1. To protect each Fan motor and Compressor from abnormal
current, Over current relays <51C>, <51F1,2> are installed.
Therefore, do not change factory set value of Over current
relays.
2. Do not change factory set value of all timers.
ART080AR
ART100AR
(STANDARD)