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Simplified Installation
Option 1
(Return/Return Method)
Note: Option 1 is the preferred / recommended method
when doing a simplified installation.
Example diagram only - duct configuration
may change depending on model
*Unit is normally balanced on HIGH speed
with furnace blower ON.
RETURN AIR
DIRECT CONNECTION of both the HRV/ERV SUPPLY AIR STREAM and
EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN
40" (1m) MINIMUM
Outdoors
Cool Air
Return
NOTES:
1. Furnace blower is required to operate when ventilation from HRV/ERV is required.
The furnace must be set to run continuously or interlocked with HRV/ERV.
2. A minimum separation of 40 inches (1 m) is required between the two direct connections.
3. The exhaust air connection should be upstream of the supply air connection to prevent
exhausting any fresh air.
4. Weatherhood arrangement is for drawing purposes only. Six feet (2 m) minimum separation required.
Eighteen inches (460 mm) above grade minimum.
5. Due to the differences in pressure between the HRV/ERV and the equipment it is being
connected to, the HRV/ERV's airflow must be confirmed on site, using the balancing
procedure found in the installation manual.
3’ min.
recommended
Forced Air
Furnace
Installation Diagrams
Duct configuration may change depending on the
model. See Specifications for your unit.
ATTENTION