Cambridge Air Solutions
30
S-Series Technical Manual
INSTALLATION INSTRUCTIONS
VERTICAL S-SERIES 3’, 4’, & 5’ DUCT EXTENSIONS
The vertical S-Series duct extensions (3’, 4’, & 5’) are suitable for horizontal pad mount and vertical up blast
configurations in both indoor and outdoor locations. The different duct sizes allow for combinations to achieve
different desired discharge heights. All ducts come with four mounting brackets which can be used for rigging,
securing the duct to other accessories, and securing the duct work to the building structure. All ducts are insulated
with 1” fiberglass insulation to mitigate thermal losses and reduce vibrations and noise.
Heater Size
Duct Weight
A
B
C
S400/S800
3’
95 lbs.
36”
25 3/8”
25 1/4”
4’
135 lbs.
48”
25 3/8”
25 1/4”
5’
160 lbs.
60”
25 3/8”
25 1/4”
S950/S1200/S1600
3’
120 lbs.
36”
28 1/8”
42”
4’
165 lbs.
48”
28 1/8”
42”
5’
200 lbs.
60”
28 1/8”
42”
S1850/S2200/S3200
3’
140 lbs.
36”
37 1/2”
47 1/8”
4’
200 lbs.
48”
37 1/2”
47 1/8”
5’
240 lbs.
60”
37 1/2”
47 1/8”
Airflow
Accessory
brackets (Qty 4)
C
B
A
Airflow
5’ duct
extension
Horizontal Mounted
4’ duct
extension
3’ duct
extension
Airflow
Accessory
brackets (Qty 4)
C
B
A
Airflow
5’ duct
extension
Horizontal Mounted
4’ duct
extension
3’ duct
extension
