20
Symbol
Name
Symbol
Name
MC1,2
Compressor motor
<SW1>
Switch (Operation mode)
MF1
Fan motor (indoor)
<SW2>
Switch (on)
MF2,3
Fan motor (outdoor)
<23WA>
Thermostat (room temp.)
52C1,2
Contactor (compressor)
49F1,2
Internal thermostat (fan O/D)
52F
Contactor (fan I/D)
49C1,2
Internal thermostat (compressor)
TB1~3
Terminal block
CH1,2
Crankcase heater
F1, F2
Fuse (3.15A)
X1,2
Contactor (fan O/D)
Tr
Transformer
X3,4
Auxiliary relay (defrost)
51C1,2
Over current relay (compressor)
21S41,2
4-way valve
51F1
Over current relay (fan I/D)
HZ
Auxiliary relay (4-way valve)
51F2,3
Over current relay (fan O/D)
T1~4
Timer (defrost)
63H1,2
High-pressure switch
26D1,2
Thermostat (defrost)
FZ
Auxiliary relay (fan)
CZ
Auxiliary relay (compressor)
30CZ1,2
Auxiliary relay (check)
30FZ
Auxiliary relay (check)
C03,04
11~15
21~25
Connector
TCZ
Timer
CR1~3
Surge killer
Controller connection.
Symbol
No.
Function
PAC-204RC
terminal no.
1
Power (Active)
24VAC(L)
3
Cooling or Heating operation
COMP1
4
Cooling or Heating operation
COMP2
5
Reversing valve for Heating operation
4WV
6
Fan operation
FAN HI
TB2
7
Power (Neutral)
24VAC(N)
Caution,
1. To protect each Fan motor and Compressor from abnormal
current, Over current relays <51C1,2>, <51F1~3> are
installed. Therefore, do not change factory set value of Over
current relays.
2. Do no change the factory set value of all timers.
3. This timer <TCZ> installed because the power supply breaker
may operate if two compressors start at the same time.
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
ART150AR
ART200AR
(STANDARD)