Home Support Colored Wiring Diagrams #8B - #8D2 #8B8

Colored Wiring Diagram #8B8

Forced Air Furnace having a replacement air supply duct controlled by a designated ventilation switch and/or bathroom timer and a kitchen exhaust fan

HMI Hoyme Manufacturing Inc. Special Note: Circuits are colored for clarification only and are not necessarily those found in actual installations.
Diagram #8B8: Forced Air Furnace having a replacement air  supply duct controlled by a designated ventilation switch and/or bathroom timer and a kitchen exhaust fan.  

1. Use replacement air control damper (Power Close) HAC-0x10-OPC .
2. Ventilation Switch and/or bathroom timer to supply Controlled 120Vac to furnace area.
3. 24Vac dry contact switch points close when kitchen exhaust fan is operating.
4. Relay adaptors (ADP-1101-05Aand (ADP-0242-05Ato function as control centers or use (ADP-1103-TW5).

OPERATION:  
1. Replacement Damper opens to provide fresh air during the heating cycles. 
2. Ventilation switch and/or bathroom timer turns on Ventilation Fan, opens Replacement Air Damper and turns on Furnace Fan simultaneously.  
3. Kitchen Exhaust Fan closes 24Vac contact points, opens Replacement Air Damper and turns on Furnace Fan simultaneously.  
4. Damper will remain closed during manual furnafe fan operation.  
5. Optional Switch (i.e. toggle switch) allows full control of the Replacement Air Damper to open separately provided it is a Power Close type Damper .

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.

1650-ld - Printed in Canada

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Last Updated (Tuesday, 03 January 2017 12:13)