Broan ERV140TE Guia De Instalacion página 8

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3. INSTALLATION (
CONT
3.6 I
D
NSTALLING THE
UCTWORK AND
3.6.1 F
D
S
ULLY
UCTED
Never install a stale air exhaust register in a closed room where a combustion device operates, such as a gas
furnace, a gas water heater or a fireplace.
Stale air exhaust ductwork
• Install the stale air exhaust registers where the contaminants are produced: kitchen, living room, etc. Position the registers as far
from the stairway as possible and in such a way that the air circulates in all the lived-in spaces in the house.
• If a register is installed in the kitchen, it must be located at least 4 feet (1.2 m) from the range.
• Install the registers 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall OR install them in the ceiling.
• 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.
Fresh air distribution ductwork
• Install the fresh air distribution registers in bedrooms, dining rooms, living room and basement.
• Keep in mind that the fresh air registers must be located as far as possible from the stale air registers.
• Install the 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's level.)
• If a register must be floor installed, direct the airflow up the wall.
3.6.2 C
D
P
ENTRAL
RAW
Stale air exhaust ductwork
Same as for Fully Ducted System, described on point 3.6.1
When performing duct connections, always use approved tools and materials. Respect all corresponding laws and
safety regulations. Please refer to your local building code.
When performing duct connections to the furnace supply duct, this duct must be sized to support the additional
airflow produced by the unit. Also, the use of metal duct is highly recommended.
Fresh air distribution ductwork
• There are 2 methods for connecting the unit to the furnace/air handler:
Method 1: Supply side connection
• Cut an opening into the furnace supply duct at least 18 inches (0.5 m) from the
furnace/air handler.
• Connect this opening to the Fresh air distribution port of the unit (use metal
duct, see figure at right).
• Make sure the unit duct forms an elbow inside the furnace/air handler ductwork.
• If desired, interlock (synchronize) the furnace/air handler blower operation (see
Section 5 ELECTRICAL CONNECTION TO FURNACE).
Method 2: Return side connection
• Cut an opening into the furnace return duct not less than 10 feet (3.1 m) from the
furnace/air handler (A+B).
• Connect this opening to the Fresh air distribution port of the unit (see figure at
right).
NOTE: For Method 2, it is not essential that the furnace/air handler runs when the
unit is operation, but we recommend it. If desired, interlock (synchronize)
the furnace/air handler blower operation (see Section 5 ELECTRICAL
CONNECTION TO FURNACE).
'
)
D
R
EGISTERS
(
S
YSTEM
AS ILLUSTRATED IN
ECTION
S
(
OINT
YSTEM
AS ILLUSTRATED IN
2.1)
!
WARNING
S
2.2)
ECTION
!
WARNING
CAUTION
8
M
ETAL DUCT
VJ0061
A+B =
NOT LESS
10' (3.1
THAN
VJ0062
M
18"
INIMUM
(0.5
)
M
A
B
)
M

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