Connection Diagrams; Size 18K 2 Zone; Size 24K 3 Zone - Carrier 38MGR Series Service Manual

CONNECTION DIAGRAMS

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