Combustion Air Damper:
#1. Combustion Air Damper (HOM-0x11-SF1) Interlocked to One Furnace.
HMI Hoyme Manufacturing Inc. Special Note: Circuits are colored for clarification only and are not necessarily those found in actual installations. Combustion Air Damper Wires, however, are colored as shown.
Diagram #1: A Forced Air Furnace or Boiler having a Combustion Air Supply Duct.
- Combustion Air Damper for One Furnace or Boiler (HOM-0x11-SF1)
OPERATION:
Combustion Air Damper is interlocked to the Thermostat/Aqua-Stat and the Gas Valve so that the Damper proves to be open to supply fresh air before the furnace/boiler fires. The Damper closes to conserve energy when the fire stops.
Hoyme Colored Wiring Diagram #1 – Printer friendly (pdf)