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Colored Wiring Diagram #8B6

Forced Air Furnace with a replacement air supply duct controlled by a fresh air Power Open Damper

HMI Hoyme Manufacturing Inc. Special Note: Circuits are colored for clarification only and are not necessarily those found in actual installations.
Diagram #8B6: Forced Air Furnace having a replacement air  supply duct into the return plenum which provides fresh air for the living area in the home. Also included is a separate fresh air duct for a 120Vac Gas Dryer.  

1. Fresh Air Damper with Relay and End Switch MAC-0x11-SPC (Power Close).
2. 24Vac Relay Adaptor with a Duplex Receptacle and a Red Light (on/off) Switch (RADP-0242-S10A).  
3. Replacement Air Control Damper HAC-0x10-OPO (Power Open)

OPERATION:  
1. The MAC Fresh Air Damper is interlocked to open prior to the Gas Dryer operation. 
2. The HAC-0x10-OPO and the furnace circulation fan are interconnected to operate simultaneously with the MAC Fresh Air Damper during the dryer operation.  
3. The HAC-0x10-OPO will also open by itself during the heating cycle of the furnace.  
4. The Gas Dryer cord is plugged into the receptacle of the Adaptor RADP-0242-S10A and the Adaptor cord is plugged into wall outlet previously occupied by the dryer.  
5. Manually turning on the Red Light Switch opens the MAC fresh air damper which in turn lights the switch. The Dryer may now be programmed to run. When the Dryer has completed its cycle, the Adaptor Red Light Switch is to be turned off causing the MAC/HAC dampers to close and the furnace circulation fan to stop.
The HAC Damper may be continually left open by using the Optional on/off Switch.

Note: This installation does not interfere with the normal operation of the heating cycle of the furnace or the cooling cycle of the air conditioner.

1222-ld - Printed in Canada

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Last Updated (Tuesday, 20 October 2015 14:33)