Bosch GWH C 800 ES - Vent Material and Specifications

6 720 608 643
Installation instructions
17
3.12.1 Vent material and specifications
All combustion air and vent pipe materials and fittings
must comply with the following:
For specific questions concerning vent material,
specifications, usage or installation, please
contact the vent manufacturer directly.
Maximum vent length
Item Material United States Canada
Vent or
air pipe
and
fitting
PVC schedule 40 ANSI/ASTM D1785
CSA or ULC
certified only
(ULC-S636)
PVC-DWV ANSI/ASTM D2665
CPVC schedule 40 ANSI/ASTM F441
ABS-DWV schedule 40 ANSI/ASTM D2661
Pipe
cement /
primer
PVC ANSI/ASTM D2564
CPVC ANSI/ASTM F493
ABS ANSI/ASTM D2235
Table 3 Approved vent material
Warning: Protect the exhaust and inlet
from leaves and debris by installing a
screen on the end of the terminator.
Failure to do so may result into
malfunction or damage to the appliance.
i
Do not use cellular foam core pipe.
i
Ensure that a condensate drain is always
installed at the condensate outlet on the
bottom of the appliance. See section
“3.12.3 Connecting the condensate water
drain” on page 23.
Single
pipe
Diam.
Max.
length
Allowed
terminals
Exhaust
vent
3 or 4
inches
26 feet +
1st elbow +
end terminal
“T” terminal
90° elbow
18 feet +
1st elbow +
end terminal
Concentric
(KGAVT0601CVT)
Intake
vent
3 or 4
inches
26 feet +
1st elbow +
end terminal
“T” terminal
90° elbow
18 feet +
1st elbow +
end terminal
Concentric
(KGAVT0601CVT)
Table 4 Maximum vent length (intake + exhaust)
i
Note:
B For twin pipe a maximum combination
length:
52 ft + two 90º elbows + two terminals.
B For concentric solution a maximum
combination length:
36 ft + two 90º elbows + two terminals.
Description Part no.
Kit part no. and
quantity
KGAVT0601CVT
3- In. Rain Cap 320561-402 1
4- In. Diameter
SDR-26 Pipe
24 In. long 1
3- In. Y
Concentric Fitting
320656-402 1
2- ½ In. Diameter
SDR-26 Pipe
37-1/8 in. long 1
Table 5 Concentric vent part breakdown