8
#1
CONVENTIONAL:
HEATING ............................................................9
1-STAGE OR 2-STAGE
2, 3, 4, 5 WIRES
#2
CONVENTIONAL:
HEATING ..........................................................10
3-WIRE ZONE VALVE
3, 4 WIRES
#3
CONVENTIONAL:
COOLING ..........................................................11
1-STAGE
3, 4 WIRES
#4
CONVENTIONAL:
HEATING AND COOLING .....................................12
1-STAGE HEAT
4, 5 WIRES
#5
CONVENTIONAL:
HEATING AND COOLING .....................................13
2-STAGE HEAT
5, 6 WIRES
#6
CONVENTIONAL:
HEATING AND COOLING .....................................14
TWO-TRANSFORMERS
5, 6 WIRES
#7
HEAT PUMP:
HEATING AND COOLING .....................................15
SINGLE-STAGE ONLY
4, 5 WIRES
#8
HEAT PUMP:
HEATING AND COOLING .....................................16
WITH AUX / EMERGENCY HEAT
5, 6 WIRES
DIAGRAM
SYSTEM TYPE / DESCRIPTION
PAGE #
WIRING DIAGRAMS: