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FOR CANADIAN INSTALLATIONS ONLY
1. All installations must conform with local building
codes, or, in the absence of local codes, with
current CAN/CGA-B149-Installation Codes For
Gas Burning Appliances and Equipment.
2. All electrical connections must be in accor-
dance with Canadian Electrical Code, Part 1,
CSA Standard C22.1.
This equipment must be installed and wired in accor-
dance with regulations of the National Board of Fire
Underwriters, National Electrical Code, and local
governing bodies. The following recommendations are
not intended to supplant any requirements of federal,
state, or local codes having jurisdiction. Authorities
having jurisdiction should be consulted before installa-
tions are made. Local codes may require additional
safety controls and/or interlocks.
All installations in airplane hangers must be in accor-
dance with current ANSI/NFPA No. 409. All installa-
tions in public garages must be in accordance with
current NFPA No. 88A and NFPA No. 88B.
CAUTION: Do not install heating system in
corrosive or flammable atmospheres! Premature
failure of, or severe damage to the unit will result!
CAUTION: Heating system must not be installed in
locations where air for combustion would contain
chlorinated, halogenated or acidic vapors. If
located in such an environment, premature failure
of the unit will occur!
A. Handling the Equipment
The Direct Gas-Fired unit has been designed for
rigging and handling through the use of special lifting
lugs installed on the sides of each unit. As explained
previously, the basic unit is designed for shipping in
one piece where shipping limitations allow. Some
optional accessories may require field mounting.
When unloading and setting the unit, use the lifting lugs
provided or move the equipment on rollers. Hooks,
jacks, or chains must not be used around the casing,
main control panel or exterior mounted controls.
During transit, unloading and setting of the unit, bolts
and nuts may have become loosened, particularly in
the pillow block ball bearing assemblies in the fan
section. It is recommended that all nuts and set screws
be tightened. Turn fan shaft by hand to make certain
that blower does not rub against blower housing, and
that bearing set screws are tight. If units are not set
immediately, cover all openings that might be exposed
to the weather.
SECTION III - INSTALLATION
Open the cover on the electrical control box located on
the unit. Inspect all wire terminals and wiring termina-
tions to ensure that all connections are tight.
If units are not set immediately, cover all openings that
might be exposed to the weather.
Rotate fans monthly.
B. Locating the Unit
Prior to locating the unit, authorities having jurisdiction
should be consulted before installations are made.
Approval permits should be checked against the unit
received.
If in doubt regarding the application of this appliance,
consult the factory.
Locate the unit exactly level. Special attention should
be given to the duct, electrical, and fuel connection
points. Install duct work with adequate flexible connec-
tions to isolate vibration from the duct work. All duct
work should have taped or caulked seams. Duct work
should be properly sized so as not to inhibit airflow.
This information should be cross-checked with the
position of support beams and stand pipes to insure
that clearance dimensions coincide with those of the
unit. The minimum clearance to combustible material
must be maintained as listed in Table 1.
Table 1
Minimum clearance to combustible material,
also consult local codes and regulations.
Clearances to Combustible Material
Vertical Units Horizontal Units
Front* 39 inches 39 inches
Rear 6 inches 6 inches
Right 6 inches 6 inches
Left 6 inches 6 inches
Top 12 inches 12 inches
Floor Zero 6 inches
*Consider control side as front of unit.
**Optimum clearance for shaft removal would be
equivalent to cabinet width.
On outdoor curb mounted installations, flash and seal
the roof curb to prevent leakage. The cross section of
factory provided curb is formed to accept wood nailing
strip and insulation provided by others.
Make a visual inspection to insure no damage has
occured to the unit during installation.
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