Specifications

Symbol Name

MC1,2 Compressor motor

MF1 Fan motor (indoor)

MF2,3 Fan motor (outdoor)

52C1,2 Contactor (compressor)

52F1 Contactor (fan I/D)

52F2,3 Contactor (fan O/D)

51C1,C2 Overload Protector (compressor)

TB1,2,3 Terminal block

F1 Fuse (3.15A)

51F Overload Protector (fan I/D)

63H1,2 High-pressure switch

CH1,2 Crankcase heater

21S41,2 4 Way valve

26D1,2 Sensor (defrost)

26L1,2 Sensor (freeze protection)

PCB Printed Circuit Board

47 Phase Protector

DT1,2 Discharge Thermostat

X1,2 Auxilliary Relay (self hold)

49C1,C2 Compressor Internal Overload

CM1,2 Compressor Control Module

M(4)RT250AR

M(4)RT300AR

(STANDARD: IC CONTROL)

Caution,

1. To protect each Fan motor and Compressor from abnormal current, Overload

protectors are installed. Therefore, do not change factory set value of the overload

protector.

Note : 1. The dotted lines show field wiring

2. Color of earth wire is yellow and green twisting.

3. Specification subject to change without notice.

4. Each wire is addressed.

5. shows wiring for model RT300AR only

In the case of ART250AR : no wire connection at TB3(4) and (5), & 49C is replaced by single

wire.

*ART300AR onl