Raypak 106, Installation & Operating Instructions Manual

Page: 11 / 40

11
The outdoor stack serves the same function as the low
profile stackless top and should be installed in accor-
dance with the same clearance requirements. Follow
the installation instructions provided with the Outdoor
Stack Kit for installation.
Indoor Installation
The heater is design-certified for indoor installation
when equipped with the approved drafthood.
Locate heater as close as is practical to a chimney or
gas vent. Heater must always be vented to the out-
side. See Vent Piping section for details. Minimum
allowable space is shown on the rating plate. Follow
the installation instructions provided with the Indoor
Drafthood Kit for installation.
This drafthood must be installed without alteration. see
rating plate.
Ce coupe-tirage doit être installé sans modification.
Voir Ia plaque signalétique.
Combustion & Ventilation Air
(Indoor Units Only)
The heater must have both combustion and ventilation
air. Minimum requirements for net free air supply
openings are one opening that is 12 inches (30.5 cm)
from the ceiling for ventilation, and one opening that is
12 inches (30.5 cm) from the floor for combustion air
as outlined in the latest edition of the National Fuel
Gas Code, ANSI Z223.1 (Canada-CAN/CSA-B149)
and any local codes that may have jurisdiction.
NOTE: For Canada, indoor installation is restricted
to an enclosure that is not occupied and does not
directly communicate with an occupied area. Refer
to the latest edition of CAN/CSA-B149 for specific
requirements.
All Air from inside the building each opening shall •
have a minimum net free area as noted in Table E.
All air from outdoors when air is supplied directly •
from outside the building each opening shall have
a minimum net free area as noted in Table D.
Vent Piping
Vent piping the same size as the drafthood outlet is
recommended, however, when the total vent height is
at least 10 ft (3m) (drafthood relief opening to vent ter-
minal), the vent pipe size may be reduced as specified
in the National Fuel Gas Code, ANSI Z223.1 (Canada
- CAN/CSA-B149). As much as possible, avoid long
horizontal runs of vent pipe and too many elbows.
If installation requires horizontal runs, the vent pipe
must have a minimum of 1/4 in. (2cm per m) per ft rise
and should be supported at not more than five foot
intervals. Plumbers tape, criss-crossed, will serve to
space both horizontal and vertical piping. Gas vents
supported only by the flashing and extending above
the roof more than 5 ft (1.5m) should be securely
guyed or braced to withstand snow and wind loads.
We recommend use of insulated vent pipe spacers
through the roof and walls.
For protection against rain or blockage by snow, the
vent pipe must terminate with a vent cap which com-
plies with local codes or, in the absence of such codes,
the latest edition of the National Fuel Gas Code, ANSI
Z223.1 (Canada - CAN/CSA-B149).
WARNING: Indoor heaters require a drafthood
that must be connected to a vent ppe and properly
vented to the outside. Failure to follow this
procedure can cause fire or fatal carbon monoxide
poisoning.
Model Area
106 105 in² (677 cm²)
156 150 in² (968 cm²)
Model
Unrestricted
opening
Typical screened
or louvered opening
Typical screened
and louvered opening
106 27 in² (174 cm²) 41 in² (265 cm²) 54 in² (348 cm²)
156 38 in² (245 cm²) 57 in² (368 cm²) 76 in² (490 cm²)
CAUTION: Combustion air must not be
contaminated by corrosive chemical fumes which
can damage the heater and void the warranty. Do
not store chlorine, bromine, baquasil or acid in the
same room as the heater.
Table D: Minimum Air Net Area
Table E: Minimum Air Area