4000
AM (Air Management) Model

Design: Variable outdoor air from
100% to 20%, and a modulating burner with a 25:1 turn-down ratio.
Discharge air volume is fixed.

Function: Automatically responds
to building pressure and temperature needs.

Application: Used in industrial
and commercial buildings that have air quality and air management
requirements for health, safety, comfort, and economy.



4000 AR (Air
Rotation) Model

Design: Fixed 80% air rotation
rate and 20% outdoor air replacement rate.

Function: Provides efficient, low-cost
heating where minimum ventilation rates are required.

Application: Used in warehouses,
distribution centers, retail outlets, etc.
NOTE: All models are available
in upright or horizontal, as well as indoor or outdoor, configurations.
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4000
MUA (Make-Up Air) Model

Design: Fixed 100% replacement
air.

Function: Supplies direct replacement
air for building mechanical exhaust.

Application: Used as make-up air
for paint booths and other industrial processes which incorporate
mechanical exhaust.
 

4000 VAV (Variable
Air Volume) Model

Design: Discharge air volume is
variable.

Function: Works the same as the
AM Model, except all recirculated air passes through a bypass section,
not the building.

Application: Used where building
pressurization is desired and where contaminants produced by the
industrial or commercial process should not be recirculated. |