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9
Table 2: Terminals for seven wires. 2-stage
heat/1-stage cool system
WIRING DIAGRAMS
Table 3: Terminals for six wires. 1-stage heat/1-
stage cool system
R C B Y1 W Y2 GL GH
24 VAC HOT
24 VAC COMMON
REVERSING VALVE
STAGE 1 COMPRESSOR
HEAT-ELECTRIC
INDOOR FAN-LOW
INDOOR FAN-HIGH
R C B Y1 W Y2 GL GH
24 VAC HOT
24 VAC COMMON
STAGE 1 COMPRESSOR
HEAT-ELECTRIC
INDOOR FAN-LOW
INDOOR FAN-HIGH
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