Bosch FADB-04007-6--A, Руководство по установке и обслуживанию

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6 720 220 345 Revised 07-12 Subject to change without prior notice
introduced to the space will be unfi ltered and
unconditioned; potentially leading to moisture
concerns.
8. An air balance calculation should be conducted
to verify that there is not a negative pressure
being created. The amount of outside air being
introduced should be adjusted to provide a
positive pressure within the building if it is found
to be negative.
9. The damper should be in a position that allows
for easy maintenance and inspection.
10. The motorized damper is intended to be
installed in a conditioned space, not outdoors
exposed to the elements.
11. It is recommended to insulate the outside air
duct within the conditioned space to prevent
condensation forming in cold weather climate
conditions.
12. The height of the hooded louver intake should be
considered as well. The higher above grade the
intake is located, the better quality of fresh air
that is available. The minimum distance above
grade should be 2' (24").
InSTAllATIon
The fresh air duct system can be installed once the
above mentioned installation concerns have been
considered, the installation location of the intake
louver and the routing of the duct has been
determined.
1. Install the damper in the chosen location. The
orientation of the damper should follow the air
fl ow direction label. The crimped end should be
oriented towards the air handler. Support the
damper with two metal duct straps; the weight
of the damper should not be supported by the
duct work.
2. Ensure that the actuator motor is positioned on
the side and not the top of the duct when
installing in a horizontal position.
3. Drill or cut the required diameter hole through
the exterior wall for the intake hood and duct.
4. Securely fasten the hooded louver intake to the
exterior wall.
Installation IAQ Series 5
5. Route the required sized duct as determined by
the HVAC contractor or professional engineer
from the louver intake duct connection to the
damper.
6. Route the required sized duct as determined by
the HVAC contractor or professional engineer
from the damper to the connection location to
the HVAC system return air duct.
7. Ensure that the bird screen is installed securely
in the hooded louver and that there are no
gaps.
Caution
The duct installation, sizing, supporting, and
sealing should be conducted following the
latest SMACNA standards or following more
stringent local codes.
WIrIng
The motorized damper motor is controlled by a 24
VAC wall mounted, variable position potentiometer
switch. The wall controller has 3 wire leads to make
connections. Follow the wiring schematic shown in
Figure 2 on the next page.
1. Choose an appropriate location to mount the
wall controller. Available wall cavity space and
ease of access to the wall cavity space should
be considered when choosing an installation
location.
2. Route an 18 AWG size wire from the air handler
from the “G” terminal and connect to the “G”
connection the damper actuator motor.
3. Route an 18 AWG size wire from the air handler
from the “R” terminal and connect to the “24
VAC” connection the damper actuator motor.
4. Route an 18 AWG size wire from the air handler
from the “C” terminal and connect to the
“COM” connection the damper actuator motor.
5. Route an 18 AWG size wire from the “COM”
connection on the damper actuator motor to
the black wire lead out of the wall controller
and connect using a wire nut.
6. Route an 18 AWG size wire from the “+5”
connection on the damper actuator motor to
the red wire lead out of the wall controller and
connect using a wire nut.