With the use of any electrical appliance, it is important to observe all basic precautions to minimize the risk associated with use, such as electrical shock, fire, or injury to persons.

If you have doubts or are unfamiliar with this type of installation work, seek the services of a qualified electrician. ESP Energy assumes no responsibility for installation of the Ductstat®.

Never expose the DuctStat® to temperatures over 140°F (71°C).

For your safety and protection follow all instructions and adhere to applicable building and/or electrical Standards and Codes.

In order to prevent excessive stress on the mounting screws support the Ductstat® unit when unplugging connected devices.

Do NOT use the Ductstat® outdoors or in damp locations.

The Ductstat® is intended to control the automatic On/Off operation of In-Line Duct Fans™ installed in the ductwork of forced air distribution systems.

The Ductstat® can also control the line voltage to any electrical device with a maximum 5 Amperes load.

The Ductstat® is equipped with an external, replaceable 5 AMP fuse to protect the electronic circuitry from overload or short circuits. Before replacing this fuse, check what caused the fuse to blow, i.e. faulty wiring, overload, etc.

1. Locate the position between the In-Line Duct Fan™ and the register where you wish to mount the Ductstat®. Preferably, mount between 1 and 10 feet downstream from the In-Line Duct Fan™.

2. Tape the template supplied with the Ductstat® to the air duct to mark the mounting holes to be drilled.

3. Drill a hole in the air duct for the Air Intake Hole shown on the template. This hole should be ½" in diameter.

4. Drill holes in the air duct to line up with the appropriate holes located on the template. On round ducts, two screws placed through the slots in Ductstat® unit's base will be adequate (placement shown on template). On square or rectangular ducts use four screws, one at each corner of the Ductstat® (placement shown on template).

5. Tighten the supplied screws snugly in the appropriate placement for your ductwork. DO NOT OVER TIGHTEN

6.Wire a grounded power line to the In-Line Duct Fan™ and plug into the outlet on the face of the Ductstat® unit. Observe all applicable electrical Standards and Codes.

7. Plug the Ductstat® power cord into a 110 volt grounded household outlet.

8. Follow Operation/Settings to adjust the Ductstat® unit.

9. Always leave the DuctStat® Accessible for adjustment and service.

1. Make sure the blower on your furnace is not running.

2. Set the Sensitivity Differential switch to the MIN position.

3. Set the Function switch to Auto Heat (winter) or Auto Cool (summer).

4. To adjust the In-Line Duct Fan™ motor ON/OFF point rotate the Set Point knob in the proper direction for your heating or cooling application until the In-Line Duct Fan™ motor switches ON, then slightly turn the control knob in the opposite direction until the In-Line Duct Fan™ motor stops. DO NOT FORCE.

5. If you find that the DuctStat® switches the load that is plugged into it several times ON and OFF in rapid succession, set the Sensitivity Differential switch to the MAX position.

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