38MAR-04SI Specifications subject to change without notice. 15
ELECTRICAL DATA
Table 10 — Electrical Data
*Permissible limits of the voltage range at which the unit will operate satisfactorily.
LEGEND
FLA - Full Load Amps
MCA - Minimum Circuit Amps
MOCP - Maximum Over-Current Protection
RLA - Rated Load Amps
CONNECTION DIAGRAMS
Fig. 23 —Connection Diagrams
NOTES:
1. Do not use the thermostat wire for any connection between indoor and outdoor units.
2. All connections between the indoor and outdoor units must be made as shown in Figure 23. The connections are sensitive to polarity and will
result in a fault code.
MAR OUTDOOR UNIT SIZE 12K 9K 12K 18K 24K 30K 36K
Power Supply
Volts-PH-Hz 115-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60
Max – Min* Oper. Voltage 126-104 253-187 253-187 253-187 253-187 253-187 253-187
MCA 15 9 9 18202025
Max Fuse/ CB AMP20151525303035
Compressor
Volts-PH-Hz 115-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60
RLA 9 5.25 5.65 12.3 14 15 17
Outdoor
Fan Motor
Volts-PH-Hz 115-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60
FLA 0.6 0.38 0.38 0.42 0.5 0.6 0.6
Rated HP 0.053 0.053 0.053 0.067 0.16 0.16 0.16
Output 40 40 40 50 120 120 120
3(S)
1(L) 2(N)
115-1-60
Main
Power Supply
115-1-60
1(L)
2(N) 3(S) 1(L) 2(N)
Power to
Indoor Unit
CONNECTING CABLE
OUTDOOR TO INDOOR
GND
Ground
Indoor
Signal
High
Voltage
115-1-60
115-1-60
FIELD POWER SUPPLY
GND
Indoor
Signal
High
Voltage
Indoor Unit
Power Supply
3(S)1(L1)
208/230-1-60
Main
Power Supply
1(L1) 2(L2) 3(S) 1(L1) 2(L2)
CONNECTING CABLE
OUTDOOR TO INDOOR
Indoor Unit
Power Supply
208/230-1-60
Indoor
Signal
High
Voltage
GND
Ground
Power to
Indoor Unit
Indoor
Signal
High
Voltage
208/230-1-60
FIELD POWER SUPPLY
GND
208/230-1-60
115V Indoor Unit 115V Outdoor Unit 230V Outdoor Unit230V Indoor Unit
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