FIELD CONTROLS FC-1400 User Manual

 

  

 

1.  The filter must be installed on the return side of 

the HVAC system, between the return air duct 
and the intake of the system blower. NEVER 
install on the supply side of the HVAC system. 

2.  The filter access panel MUST be installed where 

there is at least twenty-six (26) inches in front of it. 
This allows clearance for the replacement of the 
media filter.  

3.  Some installations may require a duct transition. 

Transitions may be needed to reduce pressure 
drop and maintain appliance efficiency. The 
appliance must operate within the manufacturer’s 
recommended temperature and pressure drop 
requirements. 

4.  Check the flow capacity and pressure drop 

(Figure 6) to determine the filter is properly sized. 

 Always shut off the electrical power supply before working on the appliance. 

1.  Refer to the typical mounting positions (Figures 1 to 5) for proper placement of the filter cabinet.  

2.  Remove the metal filter cabinet from the carton and plastic bag. 

3.  Remove the access panel door and pull the media filter (in plastic bag) out of the cabinet.  DO NOT install the media 

filter with the plastic bag around it. 

4.  Position cabinet so access panel is available for easy media filter replacement The access panel MUST be accessible 

to remove and replace the media filter. (Note: Minimum of twenty-six (26) inches for front clearance).  

5.  Position the filter cabinet onto return air side of the appliance (Figures 1 to 5). Duct transitions may be required to 

properly mount the filter cabinet.  

6.  When the filter cabinet is mounted directly to the appliance or existing duct, mark the inside opening of the filter cabinet 

and all 12 mounting screw locations. 

7.  Drill the marked mounting holes with a 1/8 inch diameter drill bit. Remove the marked filter opening with metal cutting 

shears or equivalent.  

8.  Attach filter cabinet to the appliance or duct work using #8 X 1/2 inch long sheet metal screws or pop rivets. Seal the 

housing connections with aluminum duct tape or equivalent. 

9.  Remove media filter from the plastic bag and discard the plastic bag.

Write the installation date on filter next to 

directional arrow for future filter replacement reference.  The media filter MUST be installed WITHOUT the plastic bag.  

10.  Install media filter into the filter cabinet. 

11.  Install the filter cabinet access panel. 

12. Place appliance back into service. Appliance must operate within the appliance manufacturer’s recommended 

temperature and pressure drop requirements.