Goodman PGMDMD101/102 Motorized 25% Fresh Air Damper - Downflow

Most building codes require a certain amount of fresh air be introduced into the interior space. Use of fresh air dampers on HVAC equipment is an inexpensive way to allow fresh air into the building. McDaniel metals offers both a manual and motorized fresh air damper to fit Goodman light commercial packaged equipment. The manual fresh air damper is installed and fixed in place to allow a certain amount of fresh air to circulate at all times. The motorized fresh air damper includes a small two position actuator that opens the damper when the indoor blower is running and closes the damper when the blower turns off.

Motorized Fresh Air Damper Installation:

• 1. Remove the damper assembly from its container and inspect for damage or shortages.
• 2. Remove the large evaporator access panel.
• 3. Locate and remove the panel covering the horizontal return air opening. Retain the screws for step 4.
• 4. Feed the wiring harness into the duct opening and attach the damper to the side of the unit using the screws from step 3 and weatherproof with silicone sealant or other approved method where indicated in figure 1.
• 5. Connect the plug from the wiring harness to the plug provided inside the evaporator chamber of the unit.
• 6. Replace the evaporator access panel.

Specifications: