5
INSTALLATION EXAMPLES — It is the responsibility of
the installer to ensure all ductwork is sized and installed as
designed to ensure the system will perform as intended. All air
movement devices have a performance curve. The amount of
air (cfm) that an HRV will deliver is directly related to the total
external static pressure (E.S.P.) of the system. Static pressure is
a measure of resistance imposed on the blower by length of
duct work/number of fittings used in ductwork, duct heater etc.
Fully Dedicated System (New Construction) — Stale air is
drawn from key areas of home (bathroom, kitchen, laundry).
Fresh air is supplied to main living areas. The HRV must be
balanced. See Fig. 14.
Partially Dedicated System — Stale air drawn from key areas
of home (bathroom, kitchen, laundry) Fresh air supplied to
main living areas via the forced air system. HRV must be bal-
anced. See Fig. 15 and 16.
SUPPLY
EXHAUST
BEDROOMS
FRESH AIR
EXHAUST AIR
1800 MM
460 MM
HRV
EXHAUST
BATHROOM
CENTRAL CONTROL
(OPTIONAL)
FRESH AIR TO
LIVING ROOM
Fig. 14 — Fully Dedicated System
HRV CONNECTION
BEDROOMS
FRESH AIR
1800 MM
460 MM
HRV
EXHAUST
BATHROOM
CENTRAL CONTROL
(OPTIONAL)
FURNACE
THERMOSTAT
EXHAUST AIR
RETURN AIR
TWO SPEED
FURNACE
MIXED SUPPLY /
VENTILATION
AIR
Fig. 15 — Partially Dedicated System
