Raypak Xfiire 300B Installation And Operation Manual page 28

NOTE: For additional
categorization, see appropriate ANSI Z21 Standard
and the NFGC (U.S.), or B149 (Canada), or applicable
provisions of local building codes.
A WARNING: Mixing of different manufacturers
venting material is not permitted as this may create an
unsafe condition.
CAUTION: Condensate drains for the vent piping are
required for installations of the XFiire. Follow vent
manufacturer instructions for installation and location
of condensate drains in the vent. Condensate drain
must use a trap and the trap must be primed with water
to prevent flue gas leakage and must be routed to an
appropriate container for treatment before disposal, as
required by local codes.
WARNING: Contact the manufacturer of the vent
A
material if there is any question about the appliance
categorization and suitability of a vent material for
application on a Category IV vent system. Using
improper venting materials can result in personal injury,
death or property damage.
NOTE: Ensure that clearances are maintained per Table
F and Table I.
Use only the special gas vent pipes listed for use with
Category IV gas burning heaters as listed in Table Q
and Table R. Follow the vent manufacturer's installation
instructions carefully.
In addition to the stainless steel and polypropylene vents
listed in Table Q and Table R, the XFiire product is also
certified for use with PVC, CPVC, and vent products.
Certified Materials
PVC, CPVC, Centrotherm
InnoFlue Polypropylene
and Stainless Steel
UL listed
ANSI/ASTM D1785 Sch
40 PVC, ANSI ASTM
F441 Sch 40 CPVC
28
information on appliance
Exhaust Heater Venting
Configuration
Vertical Venting
Horizontal Through-
the-Wall Venting
Vertical Venting
Horizontal Through-
the-Wall Venting
Table P. Venting Category Requirements
Extractors, Draft Inducers, and Motorized
Combustion Air Dampers
When extractors or inducers are used in the venting
system, they must be interlocked with each connected
appliance, to ensure proper operation. If individual
motorized combustion air dampers are used, they must
be interlocked to their respective appliance. See Field
Wiring Connection section of this manual for proper wiring
instructions, using Fan/Damper dry contacts and external
interlock.
Support of Vent Stack
The weight of the vent stack or chimney must not rest on
the heater vent connection. Support must be provided in
compliance with applicable codes. The vent should also be
installed to maintain proper clearances from combustible
materials.
Combustion Air
Category Supply
From Inside Building
(Non-Direct Venting)
IV
From Outside
Building
(Direct Venting)
Combustion Air Inlet
Material
Galvanized Steel
PVC
ABS
CPVC