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7Aiv. Fresh Air Damper (FAD) or HRV/ERV location
The fresh air damper (FAD) can be located anywhere in the fresh air inlet duct. Minimize the
length of the inlet duct to improve airfl ow and improve system effi cency. It is recommended that the
damper be as close to the return air plenum as possible, and that the inlet duct connect to the
return plenum upstream of the system fi lter, and downstream of any duct-mounted sensors.
FIGURE 19 - Fresh Air Damper (FAD) and Fresh Air Intake location
FIGURE 20 - ERV/HRV and Fresh Air Intake location
The HRV/ERV unit should be installed in an area where the air is tempered to avoid freezing of the
condensate line. The contractor should install the unit in an area that is very accessible to allow the
homeowner easy access for maintenance.
It is very important to install an electric receptacle (115V) near the HVR/ERV, a seperate circuit
breaker is also recommended. You should have access to a condensate drain near the HRV/ERV to
avoid the use of condensate pump.
As a minimum, double the continuous ventilation fl ow rate for sizing the HRV/ERV product. Use the
HRV/ERV air fl ow rate as the CFM HEAT and CFM COOL dial setting one the FAVC unit.
P/N 780100700 07/18 Rev F
FAVC
6” - 10”
MINIMUM
