High volume Kitchen Exhaust fan interconnected to a Forced Air Heating System, replacement air with inlet fan interlocked with a 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 #12C: High Volume Kitchen Exhaust Fan interconnected to aForced Air Heating system having a special Replacement Air supply duct equipped and an Inlet Fan that is INTERLOCKED to a Power Open Damper.
1. Power Open Damper with an End Switch (HAC-0x10-SPO where “x”= diameter). 2. Ventilation Switch to simultaneously turn on Kitchen Exhaust Fan and to signal the Interface Relay Adaptor (ADP-1102-TPX) which acts as a control centre.
OPERATION: 1. Thermostat controls the heating and cooling appliance. 2. The Kitchen Ventilation Switch turns on the Kitchen Exhaust Fan, the appliance Circulating Fan and opens the Inlet Damper simultaneously. After the Inlet Damper proves to be open the Damper End Switch turns on the replacement air Inlet Fan. (Inlet Fan is therefore Inter-locked to the Inlet Damper.)
Option: An Inline electric heater c/w an airflow switch to temper cold incoming air.
N.B.: When adding the above Adaptor to an existing ventilation system using a designated ventilation switch, the existing system requires a Hoyme Adaptor 1101-05A before adding the Adaptor 1102.TPX. The Gt and the Gf terminals of both Adaptors are to be in series with the G of the thermostat and the G of the furnace. i.e. The G of the thermostat connects to the Gt of the first Adaptor and the G of the furnace connects to the Gf of the second Adaptor.
0940 Printed in Canada
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