Outdoor Installation; Combustion And Ventilation Air - Raypak XTherm 1005A Installation And Operation Manual

24" (610 mm)
XTHERM
36" (914 mm)
SERVICE
1" (25 mm)
CLEARANCE
REAR EXHAUST INSTALLATION
10" (254 mm)
SERVICE
CLEARANCE
MIN 4" HOUSEKEEPING PAD (BY OTHERS)
REQUIRED FOR GRAVITY DRAIN OF CONDENSATE
VERTICAL CLEARANCE
Figure 6. Minimum Clearances from Combustible
Surfaces – Indoor and Outdoor Installations
8
TOP VIEW
36" (914 mm)
SERVICE
CLEARANCE
24"
(610 mm)
FRONT VIEW
(ALL INSTALLATION)

3.4. Outdoor Installation

Heaters must not be installed under an overhang unless
clearances are in accordance with local installation codes
and the requirements of the gas supplier.
Three sides must be completely open in the area under
the overhang. Roof water drainage must be diverted away
from heaters installed under overhangs.
CAUTION: Do not install where the condensate can
A
freeze. Take appropriate measures.
Minimum
Clearances from
Heater Side Combustible
Surfaces
in. (mm)
Rear 12 (305)
Right Side 1 (25)
Left Side 1 (25)
Top Unobstructed
Vent
12 (305)
Termination
Table D. Clearances – Outdoor Installations

3.5. Combustion and Ventilation Air

NOTE: Use of this heater in construction areas where
fine particulate matter, such as concrete or dry-wall dust,
is present may result in damage to the heater that is not
covered by the warranty. If operated in a construction
environment, a clean source of combustion air must be
provided directly to the heater.
3.5.1. Indoor Units
NOTE: On Indoor installations, the clear panel in the outer
bezel may be removed to allow access to the touchscreen
without removing the outer panel.
This heater must be supplied with sufficient quantities of
non-contaminated air to support proper combustion and
equipment ventilation. Combustion air can be supplied via
conventional means where combustion air is drawn from
the area immediately surrounding the heater, (as shipped
from factory, combustion air is drawn through louvers in
jacket panels) or via direct vent, where combustion air
is drawn directly from outside. (See Section 3.6.1 for
instructions on how to connect ducting to the unit). All
installations must comply with the requirements of the
NFGC (U.S.) and B149 (Canada), and all local codes.
CAUTION: Combustion air must not be contaminated
A
by corrosive chemical fumes which can damage the
heater and cause a non-warrantable failure. See the
Appendix.
NOTE: It is recommended that the intake vent be insulated
to minimize sweating in freezing climates.
Minimum Service
Clearance
in. (mm)
36 (914)
24 (610)
1 (25)
Unobstructed
12 (305)