Outdoor Installation - Raypak Xfiire 300B Installation And Operation Manual

The vent cap is not considered in the overall length of the
venting system.
The vent must be installed to prevent flue gas leakage.
Care must be taken during assembly to ensure that all
joints are sealed properly and are airtight. The vent must
be installed to prevent the potential accumulation of
condensate in the vent pipes. It is required that:
• The vent must be installed with a condensate drain
located in proximity to the heater as directed by the
vent manufacturer.
• The vent must be installed with a slight upward
slope of not less than 1/4" per foot of horizontal run
to the vent terminal.
Termination
The flue direct vent cap MUST be mounted on the exterior
of the building. The direct vent cap cannot be installed
in a well or below grade. The direct vent cap must be
installed at least 12" (305 mm) above ground level and
above normal snow levels. The approved horizontal, PVC/
CPVC flue direct vent cap that must be used is a Tee of
the same size as vent pipe. See Figure 38 and Figure
39. The vent terminal must be located NO CLOSER than
12" (305 mm) off the wall.

Outdoor Installation

Heaters must not be installed outdoors in freezing climates.
Heaters installed outdoors must be vented with listed UV-
resistant vent material per the following instructions and
installed with the factory-supplied Outdoor Vent Kit. See
Table U. A special vent cap is provided in accordance with
CSA requirements. This must be installed directly on the
vent pipe as illustrated in Figure 40.
Model No.
300B - 500B
650B - 1000B
Table U. PVC and CPVC Outdoor Vent Kits
NOTE: External support of outdoor venting is required
if the vent extends beyond the jacket top by more than
36" (914 mm).
The flue outlet is not designed to support the weight of
the vent system beyond 36" (914 mm) above the jacket
top. Supplemental support is required if the vent extend
beyond 36" (914 mm).
The Raypak Outdoor Vent Kits contain the following
components:
• SS Adapter
• SS Elbow
• 34in Straight SS Vent
• Termination Tee
38
Outdoor Kit No.
017754
017755
• Installation Instructions
Care must be taken when locating the heater outdoors,
because the flue gases discharged from the vent cap can
condense as they leave the cap. Improper location can
result in damage to adjacent structures or building finish.
For maximum efficiency and safety, the following
precautions must be observed:
1. When heaters are installed outdoors, they must
use the Outdoor Vent Kit that is available from the
manufacturer (See Table U or sales order option
D-11). Follow instructions provided with kit for
installation.
2. Periodically check venting system. The heater's
venting areas must never be obstructed in any
way and minimum clearances must be observed to
prevent restriction of combustion and ventilation air.
See Table I. Keep area clear and free of combustible
and flammable materials.
3. Do not locate adjacent to any window, door, walkway,
or gravity air intake. The vent must be located a
minimum of 4' (1.2 m) horizontally from such areas.
NOTE: Condensate can freeze on the vent cap. Frozen
condensate on the vent cap can result in a blocked flue
condition.
4. Install above grade level.
5. Vent terminal must be at least 3' (914 mm) above any
forced air inlet located within 10' (3 m).
6. Adjacent brick or masonry surfaces should be
protected with a rust-resistant sheet metal plate to
prevent staining/corrosion of the wall surfaces.
HEATER UNIT
Figure 40. Outdoor Installation
D-15
VENT TERMINAL
CAT IV
24" MIN
VENT PIPE
(610 mm)
TEST PORT
VENT DRAIN W/ TRAP
ROUTE TO CONDENSATE
TREATMENT OR
CONDENSATE PUMP
F10573