Nstalling The Ductwork And The Registers; Fully Ducted System; Exhaust Ducted System - Venmar AVS ERV DUO 1.5 Mode D'emploi

3. INSTALLATION (
3.5 I

NSTALLING THE DUCTWORK AND THE REGISTERS

Never install a stale air exhaust register in a room where there is a combustion device, such as a gas furnace, a
gas water heater or a fireplace.
The ductwork is intended to be installed in compliance with all local and national codes that are applicable.
3.5.1 F
ULLY DUCTED SYSTEM
S
TALE AIR EXHAUST DUCTWORK
• Install registers in areas where contaminants are produced: Kitchen, bathrooms, laundry room, etc.
• Install registers 6" to 12" (152 mm to 305 mm) from the ceiling on an interior wall OR install them in the ceiling.
• Install the kitchen register at least 4 feet (1.2 m) from the range.
• If possible, measure the velocity of the air flowing through the registers. If the velocity is higher than 400 ft/min. (122 m/min), then
the register type is too small. Replace with a larger one.
F
RESH AIR DISTRIBUTION DUCTWORK
• Install registers in bedrooms, dining room, living room and basement.
• Install registers either in the ceiling or high on the walls with air flow directed towards the ceiling.
(The cooler air will then cross the upper part of the room, and mix with room air before descending to occupant level.)
• If a register must be floor installed, direct the air flow up the wall.
3.5.2 E
XHAUST DUCTED SYSTEM
S
TALE AIR EXHAUST DUCTWORK
Same as for Fully Ducted System, described on point 3.5.1 above)
F
RESH AIR DISTRIBUTION
When performing duct connection to the furnace, installation must be done in accordance with all applicable
codes and standards. Please refer to your local building code.
When performing duct connection to the furnace supply duct, this duct must be sized to support the additional
airflow produced by the ERV. Also, use a metal duct. It is recommended that the ERV is running when the furnace
is in operation in order to prevent backdrafting inside ERV.
There are two methods for connecting the unit to the furnace:
M 1: S
ETHOD UPPLY SIDE CONNECTION
• Cut an opening into the furnace supply duct at least 18 inches (0.5 m) from the
furnace.
• Connect this opening to the fresh air distribution port of the ERV (use metal duct,
see illustration at right).
• Make sure that the ERV duct forms an elbow inside the furnace ductwork.
• If desired, interlock (synchronize) the furnace blower operation with the ERV
operation (see Section
M 2: R
ETHOD ETURN SIDE CONNECTION
• Cut an opening into the furnace return duct not less than 10 feet (3.1 m) from the
furnace (A+B).
• Connect this opening to the fresh air distribution port of the ERV (see illustration at
right).
NOTE: For Method 2, it is not essential that the furnace blower runs when the unit
is in operation, but we recommend it. If desired, synchronize the furnace
blower operation with the ERV operation (see Section 5).
' )
CONT D
( S
AS ILLUSTRATED IN ECTION
:
:
( S
AS ILLUSTRATED IN ECTION
:
:
5).
!
WARNING
CAUTION
2.1)
2.2)
!
WARNING
CAUTION
8
M
ETAL DUCT
VD0172
A
A+B=
NOT LESS
VD0108
10' (3.1
THAN
M
INIMUM
18'' (0.5 )
M
B
)
M