9
#1
CONVENTIONAL:
HEATING ONLY ..................................................10
SINGLE-STAGE
2, 3, or 4 WIRES
#2
CONVENTIONAL:
COOLING ONLY .................................................11
SINGLE-STAGE
3 or 4 WIRES
#3
CONVENTIONAL:
HEATING AND COOLING .....................................12
SINGLE-STAGE
4 or 5 WIRES
#4
CONVENTIONAL:
HEATING AND COOLING .....................................13
TWO-TRANSFORMERS, SINGLE-STAGE
5 or 6 WIRES
#5
HEAT PUMP:
HEATING AND COOLING .....................................14
NO AUXILIARY / EMERG HEAT, SINGLE-STAGE
4 or 5 WIRES
DIAGRAM
SYSTEM TYPE / DESCRIPTION
PAGE #
WIRING DIAGRAMS:
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