Ventilator Performance Calculation; Installation Procedure - Bosch HCP50652UC Installation Manual

Ventilator Performance Calculation

Duct Piece
Smooth, straight
3¼" x 10", straight
3¼" x 14", straight
90° elbow , round
45° elbow , round
3¼" x 10",
90° elbow , round
3¼" x 10",
45° elbow , round
3¼" x 10", Flat elbow
Round to 3¼" x 10"
3¼" x 10" to round

Installation Procedure

The ducting from this fan to the outside of the building has
a strong effect on the air flow, noise and energy use of the
fan. Use the shortest, straightest duct routing possible for
best performance, and avoid installing the fan with smaller
ducts than recommended. Insulation around the ducts can
reduce energy loss and inhibit mold growth. Fans installed
with existing ducts may not achieve their rated airflow.
Ensure duct joints and exterior penetrations are sealed
with caulk or other similar material to create an air-tight
path and to minimize building heat loss and gain and
reduce the potential for condensation.
Place/wrap insulation around duct and/or fan to in order to
minimize possible condensation buildup within the duct,
building heat loss and gain.
CAUTION
Ensure that there are no electric wires, gas or water pipes
in the area where holes are to be made.
Page 8
Equivalent
Size (in)
Length (ft)
6 1.2
8 0.7
10 0.6
N/A 1
N/A 0.7
6 12
8 6
10
5
6 5
8 3
10 2
N/A 5
N/A 15
N/A 20
6 1
8 10
6 5
8 2
NOTE: These commonly used installation parts can be purchased at a
local hardware store. Bosch does not manufacture all these parts.
Duct Piece
Round to 3¼" x 10"
90° elbow ,
3¼" x 10" to round
90° elbow ,
3¼" x 10" Center
reverse elbow , left
3¼" x 10", Center
reverse elbow , right
3¼" x 10", Left
reverse elbow
3¼" x 10", Right
reverse elbow
Round wall cap
Round roof cap
2' long, 3¼" x 10" flex
3¼" x 10", Roof jack
and shutter
Roof
Venting Venting
A
B
B
C
C
A. Roof cap A. Wall cap
B. 8" (20.3 cm) B. 8" (20.3 cm)
round vent round vent
C. Seal duct joints C. Seal duct joints
with duct tape/ with duct tape/
caulk caulk
Equivalent
Size (in)
Length (ft)
6 10
6 10
N/A 15
N/A 25
N/A 15
N/A 25
6 2
8 2
10 2
6 2
8 2
10 2
N/A 20
N/A
2
Wall Non Vented
(Recirculating)*
A
B
C
A. Diverter
B. 8" (20.3 cm)
round vent
C. Seal duct joints
with duct tape/
caulk