Carrier 38QUS018DS2 Series Installation Manual page 29

5. WIRING
38QUS027DS3*/ 38VNM327713
N(A) S(A)
L N L(A)
POWER
SUPPLY
L N S
Indoor A
38QUS036DS4*/ 38VNM436713
L N L(A) N(A) S(A)
POWER
SUPPLY
L N S
Indoor A
CAUTION
Make sure that the indoor unit (A, B,...) connects to the valves and signal wire terminal (A, B, ...) of
outdoor unit as identified with their respective matched connection.
L(B) N(B) S(B) N(C)
L(C)
To Indoor A
Clamp Filter: Clamp to indoor/outdoor
connecting wire (Field supply)
L N S
L N S
Indoor B
Indoor C
L(B) N(B) S(B) N(C)
L(C)
L N S L N S
Indoor B Indoor C
S(C)
POWER SUPPLY
To Indoor C
To Indoor B
S(C)
L(D) N(D) S(D)
To Indoor D
To Indoor A
To Indoor B
Clamp Filter: Clamp to indoor/outdoor
connecting wire (Field supply)
L N S
Indoor D
Power input cord
60mm
GND
10mm 40mm
Connective Cable
60mm
GND
10mm 40mm
Power input cord
60mm
GND
10mm 40mm
Connective Cable
60mm
GND
10mm 40mm
To Indoor C
GB-28