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ADP-0240-3WS - Installation Instructions

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3-Way Switch – Damper/Furnace Control 

Easy to Follow Installation Instructions for the

HMI HOYME Adaptor ADP-0240-3WS  

 

A Forced Air Heating System having a Fresh Air Intake Duct leading into the return plenum is often equipped with a Power Open Damper.  Usually the thermostat causes the damper to open for fresh air during furnace firing and allows the Damper to close when the fire stops. To open the Fresh Air Damper at times when the furnace is not firing requires the use of a 3-way switch (SPDT). Purchasing a 3-way switch and the necessary extras can be time consuming. By purchasing this Ready Mounted 3-way Switch, Adaptor ADP-0240-3WS, you have eliminated the trouble of buying a 3-way switch, an electrical enclosure, necessary connectors, all separately, plus the problems of assembly. This adaptor comes completely assembled with simple, easy-to-follow installation instructions which follow:


1. Mount the Adaptor ADP-0240-3WS in a convenient place on or around the furnace area with two screws supplied.

2. Inside the adaptor are terminals “W”, “C” and “R” which are to be connected to corresponding terminals inside your furnace. Use 3-C 18Ga. thermostat wire.

3.  Connect adaptor terminals “#2” and #4 to the two wires on the motor of the Hoyme Power Open Damper.

Connect adaptor terminals “#2” and #4 to the two wires on the motor of the Hoyme Power Open Damper.  

 

Automatic Setting: When the Adaptor switch is in the “Automatic” position, the thermostat will operate normally which will cause the damper to open during the heating cycle and will allow the damper to close when the fire stops.

 

Manual Setting: In the “Manual”position, the switch will override the thermostat and will power the damper to remain in the open position.

 

               (For Adaptor applications, see Color Wire Diagrams #3A2; #4A2 & #8C3.)

 


 

  This Schematic Wiring Diagram in also on the Inside Cover of the Adaptor

 

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Last Updated (Friday, 01 April 2016 09:50)