Carrier 38MGR Series - CONNECTION DIAGRAMS; Wiring Diagrams for Unit Sizes

10 Specifications subject to change without notice. 38MGR-04SM
CONNECTION DIAGRAMS
Fig. 8 — Size 18K 2 Zone
Fig. 9 — Size 24K 3 Zone
208-230-1-60
FIELD POWER SUPPLY
208-230-1-60
Main
Power Supply
208-230-1-60
Power to
Indoor Unit A
Indoor
Unit A
Signal
High
Voltage
L2
L1(A)
S(A)
L2(A)
Ground
CONNECTING CABLE
OUTDOOR TO INDOOR
S
L1
L2
Indoor Unit A
Power Supply
208-230-1-60
Indoor
Unit A
Signal
High
Voltage
GND
Ground
CONNECTING CABLE
OUTDOOR TO INDOOR
S
L1
L2
Indoor Unit B
Power Supply
208-230-1-60
Indoor
Unit B
Signal
High
Voltage
GND
Ground
L1(B)
L2(B)
S(B)
Power to
Indoor Unit B
208-230-1-60
Indoor
Unit B
Signal
High
Voltage
208-230-1-60
FIELD POWER SUPPLY
208-230-1-60
Main
Power Supply
208-230-1-60
Power to
Indoor Unit A
Indoor
Unit A
Signal
High
Voltage
L2
L1(A)
S(A)
L2(A)
Ground
L1(B)
L1(C)
L2(B)
L2(C)
S(B) S(C)
Power to
Indoor Unit B
Power to
Indoor Unit C
208-230-1-60
208-230-1-60
Indoor
Unit B
Signal
High
Voltage
Indoor
Unit C
Signal
High
Voltage
CONNECTING CABLE
OUTDOOR TO INDOOR
S
L1
L2
Indoor Unit A
Power Supply
208-230-1-60
Indoor
Unit A
Signal
High
Voltage
GND
Ground
CONNECTING CABLE
OUTDOOR TO INDOOR
S
L1
L2
Indoor Unit B
Power Supply
208-230-1-60
Indoor
Unit B
Signal
High
Voltage
GND
Ground
CONNECTING CABLE
OUTDOOR TO INDOOR
S
L1
L2
Indoor Unit C
Power Supply
208-230-1-60
Indoor
Unit C
Signal
High
Voltage
GND
Ground