Vent switch and interlocking replacement air - Power
Hoyme Manufacturing Inc. Special Note: Circuits are colored for
and are not necessarily those found in actual installations.
Wires of the
Combustion Air Damper, however, are
colored as shown.
Forced Air Furnace having a
supply duct together with a designated
to turn on an
exhaust fan INTERLOCKED
to a replacement
air control damper
Relay and End Switch (HAC-0x11-SPC).
2. Ventilation Switch and/or bathroom timer with
supply to furnace area.
3. Relay Adaptor (ADP-1102-TPX)
functions as a control centre.
1. Replacement air damper opens during furnace firing.
2. Ventilation Switch
and/or bathroom timer opens the Replacement Air Damper.
After Damper proves to be opened (INTERLOCKED),
the exhaust Fan and Furnace Fan will turn on.
(i.e. toggle switch, timer, de-humidistat) allows full control of Replacement
Air Damper to open at any time provided it is the
N.B. Replacement Air Damper is not affected by the ‘Manual’ setting of
the furnace fan.
1222-ld - Printed in Canada
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