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zone 1
zone 1
zone 2
zone 2
zone 3
zone 3
Fuse
Blower control
Thermal switch
Zone dampers
Jumper
Zone valves
(8”NC)
black
Draft
damper
motor
Internal
blower
Thermal
switch
Terminal
switch
Draft
damper
thermostat
Internal
blower speed
control
black
white
black
ground (bare)
110V
relay
yellow
white
black
External
blower
control
External
central heat
blower
24V
18ga
LVT
white
Figure 38: Wiring for all systems with a zone heat system
OPEL AP
Zone
thermostat
(Heat Only)
