Replacement Air Damper, Power Close with relay and ADP-0241-05A relay adaptor:
#6B4. Adaptors (ADP-0241-05A), One Power Close Fresh Air Damper (-PC) with relay, Opens during Furnace firing and cooling cycle.
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 #6B4: Forced Air Furnace having a replacement air supply duct.
- Replacement Air Control Damper (PC) with Relay (HAC-0x11-OPC), energized relay opens damper during cooling cycle.
- Relay Adaptor (ADP-0241-05A) to open damper during heating cycle.
OPERATION:
- The Damper opens to provide fresh air during the heating and cooling cycle.
- Optional Switch (i.e. toggle switch, timer, de-humidistat) allows full control of the Replacement Air Damper to open as required provided it is PC type.
N.B. Replacement Air Damper is not affected by the ‘Manual’ setting of the furnace fan.