Nortek FG7MQ - Combustion Air Quality; Corrosive Atmosphere Warning; Heating Load Considerations

5


Commercial buildings
Buildings with indoor pools




Permanent wave solutions

Chlorine based swimming pool chemicals


Carbon Tetrachloride
Halogen type refrigerants

Printing inks, paint removers, varnishes, etc.
Hydrochloric Acid
Cements and glues
Antistatic fabric softeners
Masonry acid washing materials
Heating Load
This furnace should be sized to provide the design heating

using approved methods available from Air Conditioning


or other approved engineering methods. 
       
 The ductwork should
be appropriately sized to the capacity of the furnace to
ensure its proper airflow rating.
Zoned systems may increase undesirable effects of
      
the heating load for zoned installations.

a sea level input rating large enough that it will meet the
heating load after deration for altitude.
       


furnace can function like 11 different furnaces.

         



      
heat output needed and changes the step accordingly.
         

are 5 additional steps that use different on and off times.


thermostat can control the heat delivered to the residence

The information listed below is for reference purposes only

state codes. Always consult with local authorities before
installing any gas appliance.

 

       


 
       
  
      

Electrical Connections
 
 

 
 
General Installation
     

       


 
     


 


 


CAUTION:
       

       
must be free of chemicals that can form corrosive acidic
compounds in the combustion gases. The recommended
source of combustion air is to use outdoor air. However,
the use of indoor air in most applications is acceptable

        

the outdoors by way of attic, crawl space, air duct, or

page 8 