Venting Installation Tips; Venting Configurations; Vertical Venting (Category Iv) - Stainless Steel And Polypropylene - Raypak Xfiire 300B Installation And Operation Manual

Venting Installation Tips

Support piping ( See vent manufacturer's instructions):
• horizontal runs—at least every 5' (1.5 m)
• vertical runs—use braces at least every 10' (3 m)
• under or near elbows
A WARNING: Examine the venting system at least
once a year. Check all joints and vent pipe connections
for tightness, corrosion or deterioration.

Venting Configurations

For heaters connected to gas vents or chimneys, vent
installations shall be in accordance with the NFGC (U.S.),
or B149 (Canada), or applicable provisions of local
building codes.
CAUTION: This venting system may require the
A
installation of supplemental condensate drains in the
vent piping per the vent manufacturer's instructions.
Failure to install these condensate drains in the venting
system may cause a non-warrantable failure.
Vertical Venting (Category IV)
- Stainless Steel and Polypropylene
Installation
The maximum and minimum venting length for this heater
is shown in Table S.
The following information is related to SS and Centrotherm
InnoFlue Polypropylene venting materials. See Table Q
and Table R for appropriate adapters.
Model Certified Vent
No. Material*
300B
SS Cat IV (UL Listed),
400B
Polypropylene,
PVC/CPVC
500B
ANSI/ASTM D1785
650B
Sch 40 PVC, ANSI
ASTM F441 Sch 40
800B
CPVC
1000B
* Special vent materials are still required.
** Subtract 10 ft (3 m)per elbow. Max. 4 elbows.
32
Total Vent Length
Vent Size in.
(eq. ft.)** (m)
(mm)
Min.
4 5
(100 mm) (1.5)
6
5
(150 mm) (1.5)
Table S. Category IV Vertical Venting
Any horizontal sections of a vent must have an upward
slope of not less than 1/4" per linear foot from the heater
to the vent terminal. The horizontal portions of the vent
shall also be supported for the design and weight of the
material employed to maintain clearances and to prevent
physical damage or separation of joints.
8' OR LESS
(2.4 m)
HEATER UNIT
Figure 31. Vertical Venting for Stainless Steel and
Polypropylene
Combustion
Air Intake
Pipe Material
Max.
100
(30)
Galvanized
Steel, PVC,
CPVC, ABS
100
(30)
24" MIN
(610 mm) D-15 VENT TERMINAL
CAT IV
VENT PIPE
TEST PORT
VENT DRAIN W/ TRAP
ROUTE TO CONDENSATE
TREATMENT OR
CONDENSATE PUMP
F10568
Air Inlet
Max Length** (eq. ft.) (m)
4" Ø 6" Ø
100
(30)
100
N/A
(30)