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Figure 10 - Wiring for 4-Speed Direct Drive
Pan Control Relay-
Black & blue normal¬
ly closed
(Heating).
Black & Brown
closed for cooling.
24 Volt Coil
To
Thermostat
To
change
blower
speed for heating move
this wire to
1,2,3 or
4 terminal.
l=High
Speed
2—Medium
Speed
3=Medium Low Speed
4=Low
Speed
/
,!W"
Wire used with
Bryant A640B Valve
Pilot or
Pilot Relay
Figure 11 - Wiring for 4-Speed Direct Drive Using Relay
- 13-
393U
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