3. INSTALLATION PROCEDURES
CODE REQUIREMENTS
Installation must be in accordance with
local
codes
, or, in the absence of local codes, with the latest
editions of the
National Fuel Gas Code
,
ANSI Z223.1,/
NFPA 54,
and the
National Electrical Code
,
ANSI/
NFPA 70.
In Canada installations must conform with the
current
CAN/CGA B149.1
or
.2
and the
Canadian
Electrical
Code Part 1 CSA C22.2 No.1.
Where
required by the authority having jurisdiction, the installa-
tion must conform to American Society of Mechanical
Engineers Safety Code for Controls and Safety Devices
for Automatically Fired Heaters,
No. CSD-1.
MOUNTING BASE
Heater should be mounted on a level surface. Each
heater is designed with a built-in sub-base approved for
mounting the heater on combustible flooring. Heater
must
NOT
be installed on carpet flooring.
NOTE:
The heater should be located in an area where
water leakage will not result in damage to the area
adjacent to the appliance or to the structure. When such
locations cannot be avoided, it is recommended that a
suitable drain pan, adequately drained, be installed
under the appliance. The pan must not restrict air flow.
In addition, the heater shall be installed such that the
gas ignition system components are protected from
water (dripping, spraying, rain, etc.) during appliance
6
operation and service (circulator replacement, control
replacement, etc.)
CLEARANCE REQUIREMENTS
1) Minimum Clearances From Combustible Materials
Model Floor Front Back Right Left Top Flue
No.
Vent
0090
0135 Comb. Alcove 6" 6" 6" 16" 6"
0195
2) A front clearance of at least 24" is recommended
for adequate service of burner-tray and controls.
3) Except for carpeted flooring, heaters are certified
for installation on combustible floors.
4) For un-insulated hot water pipes, maintain a 2"
clearance, or consult local authority having
jurisdiction.
COMBUSTION/VENTILATION AIR
WARNING:
Air supply to the heater room must not be
affected by mechanical exhaust vents located in other
parts of the house, such as kitchen or bathroom fans, or
attic blowers. Mechanical exhaust vents may create a
negative pressure condition in the heater room that can
become a hazard of asphyxiation, explosion or fire.
CAUTION:
Combustion air must not be contaminated
by corrosive chemical fumes which can damage the
heater. Measures must be taken to prevent the entry of
corrosive chemical fumes to the combustion and venti-
lation air supply. Such chemicals include, but are not
limited to, chlorinated and/or fluorinated hydrocarbons
such as found in refrigerants, aerosol propellants, dry-
cleaning fluids, degreasers, and paint removers. Other
harmful elements may come from bleaches, air freshen-
ers, or mastics. Vapors from these types of products
can form corrosive acid compounds when burned in a
gas flame. The resulting acid condensate can damage
or substantially reduce the life of the heater. It may be
necessary to provide outside air directly to the heater in
order to avoid this problem.
1) The heater must be provided with adequate supply
of air for proper combustion and ventilation in
accordance with
Sec. 5.3,
of the latest edition of
the
National Fuel Gas Code
,
ANSI Z223.1,
or
applicable provisions of the local building codes.
Fig.# 8196.0
Fig.# 8193.1
