The Partially Dedicated Installation
•Stale air drawn from key areas of home (bathroom, kitchen, laundry)
•Fresh air supplied to return air duct of air handler
FOUR PORT MODELS
WARNING
HRV must be balanced.
Refer to “Airflow Balancing” in this manual.
DIRECT CONNECTION of the SUPPLY AIR STREAM to the FURNACE COLD AIR RETURN
(Stale air drawn from key areas of home)
Return Air
Outdoors* Unit is normally balanced on HIGH speed
with furnace blower ON.
3' (1 m) min . recommended
Cool Air
Return
NOTES:
1.Furnace blower is recommended to operate when HRV is on to provide good air distribution.
2.Weatherhood arrangement is for drawing purposes only. 6' (2 m) minimum separation required. 18" (460 mm) above grade minimum.
3.Due to the differences in pressure between the HRV and the equipment it is being connected to, the HRV's airflow must be confirmed on site, using the balancing procedure found in
the installation manual.4.The duct port configuration (Fresh Air from Outside, Stale Air to Outside, etc.) varies from model to model. Check specifications for the duct configuration on your model.
Forced Air
Furnace
FIVE PORT MODELS - Partially Dedicated Installation for Models RNC10/RNC20
Outdoors
Stale Air To Outside | Return Air |
3' (1 m) min . recommended
Fresh Air From Outside
Cool Air
Return
STALE AIR from various parts of home.
i.e. bathrooms (if required), kitchens (if required).
Balancing Damper
High efficiency filter
Handler
(optional)
WARNING
Defrost air port needs to be drawn from clean area without combustion appliances. To avoid backdrafting of combustion products, never draw defrost air from a room with a naturally aspirated appliance, i.e. furnace, hot water heater, gas dryer, stove, fire place etc.
or electronic air cleaner
*Unit is normally balanced on HIGH speed
with furnace blower ON.
CAUTION
Weatherhood arrangement - requires a minimum of 6' (2m) separation and a minimum of 18" (460mm) clearance above grade or anticipated snow level.
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