Durodyne
 

 

 

 

AQC-Air Quality Control

Dyna-Fresh AQC Air Quality Control Center

When tightly insulated homes have windows and doors shut, stale air is sealed in and fresh air is sealed out. Fresh air provides a healthier home and work environment. The key to eliminating moisture, bacteria, carbon monoxide and household odors is bringing fresh air indoors. The Dyna-Fresh Air Quality Control System brings outdoor air inside to make a more comfortable and healthy environment. The key component is a control panel which draws air into the home or workplace at pre-determined intervals with a 24 volt timer or manual override for continuous fresh air flow. The fresh air is drawn in through a motorized round damper. This fresh air is mixed with the indoor air already inside the heating / cooling system. The mixture is now circulated through the ductwork while stale air is vented out through an existing ventilation (such as a bathroom exhaust fan).

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EC-1 Economizer Control

The EC-1 is used in conjunction with two Duro Zone zone dampers and an enthalpy control to create an economizer package for an air-conditioning system. At rest, (outside conditions not conducive for cooling), the return air damper will be open, the fresh air damper will be closed, and the compressor will function normally. When correct enthalpy conditions are attained, (humidity and temperature conducive for cooling), the EC-1 will close the return air damper and open the fresh air damper. At the same time the compressor will shut down, but the fan will continue to run, drawing fresh air from outside to satisfy the cooling demand.

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EC-2 Economizer Control

The EC-2 is used in conjunction with two Duro Zone fresh air 4 position dampers and an enthalpy control to create an economizer package for an air-conditioning system. The EC-2 incorporates a 4 position rotary switch to allow mixing of the outside air with return air. At rest (humidity and temperature not conducive for cooling), the return air damper and fresh air damper will be in the position indicated on the switch and the compressor will function normally. When correct enthalpy conditions are attained, (outside conditions conducive for cooling), the return air damper and the fresh air damper will change positions. At the same time, the compressor will shut down, but the fan will continue to run, drawing fresh air from the outside to satisfy the cooling demand.

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