3
GENERAL SAFETY INFORMATION
Failure to comply with the general
safety information may result in extensive
property damage, sever personal injury, or death.
This product must be installed by
a licensed plumber or gas fi tter when installed
within the Commonwealth of Massachusetts.
Installation must be made in accordance with local
codes, or in absence of local codes, with the latest
edition of the National Fuel Gas Code, ANSI Standard
Z223.1 (NFPA 54). All of the ANSI and NFPA Standards
referred to in these installation instructions are those that
were applicable at the time the design of this appliance
was certifi ed. The ANSI Standards are available from the
CSA Information Services, 1-800-463-6727, as well as at
www.ansi.org. The NFPA Standards are available from the
National Fire Protection Association, 1 Batterymarch
Park, Quincy, MA 02169, as well as at www.nfpa.org.
These duct furnaces are designed for use in airplane
hangars when installed in accordance with current ANSI/
NFPA No. 409 and in public garages when installed in
accordance with current NFPA No. 88A and NFPA No. 88B.
If installed in Canada, the installation must conform with
local building codes, or in absence of local building codes,
with CSA-B149.1 “Installation Codes for Natural Gas
Burning Appliances and Equipment” or CSA-B149.2
“Installation Codes for Propane Gas Burning Appliances
and Equipment.” These indoor duct furnaces have been
designed and certifi ed to comply with CSA 2.6. Also see
sections on installation in AIRCRAFT HANGARS and
PUBLIC GARAGES.
Do not alter the duct furnace in any
way or damage to the unit and/or severe personal
injury, or death may occur!
Disconnect all power and gas
supplies before installing or servicing the heater.
If the power disconnect is out of sight, lock it in
the open position and tag it to prevent unexpected
application of power. Failure to do so could result
in fatal electric shock, or severe personal injury.
Ensure that all power sources conform
to the requirements of the unit heater or damage to
the unit will result!
Follow installation instructions CAREFULLY to avoid
creating unsafe conditions. All wiring should be done and
checked by a qualifi ed electrician, using copper wire only.
All external wiring must conform to applicable local codes,
and to the latest edition of the National Electric Code
ANSI/NFPA No. 70. All gas connections should be made
and leak-tested by a suitable qualifi ed individual, per
instructions in this manual.
Also, follow procedures listed on the “Gas Equipment
Start-up” sheet located on the back cover of this manual.
Use only the fuel for which the heater is designed (see
rating plate). Using LP gas in a heater that requires
natural gas, or vice versa, will create the risk of gas leaks,
carbon monoxide poisoning and explosion.
Do not attempt to convert the
heater for use with a fuel other than the one
intended unless using an appropriate conversion
kit provided by the manufacturer. Such conversion
is dangerous and could create unsafe conditions
that result in death, serious personal injury or
property damage.
Make certain that the power source conforms to the
electrical requirements of the heater.
Do not depend upon a thermostat
or other switch as sole means of disconnecting
power when installing or servicing heater. Always
disconnect power at the main circuit breaker as
described above. Failure to do so could result in
fatal electric shock.
Special attention must be given to any grounding
information pertaining to this heater. To prevent the risk
of electrocution, the heater must be securely and
adequately grounded. This should be accomplished by
connecting a grounded conductor between the service
panel and the heater. To ensure a proper ground, the
grounding means must be tested by a qualifi ed technician.
Do not insert fi ngers or foreign objects into the heater or
its combustion air moving device. Do not block or tamper
with the heater in any manner while in operation or just
after it has turned off, as some parts may be hot enough
to cause injury.
This heater is intended for general heating applications
ONLY. It must NOT be used in potentially dangerous
locations such as fl ammable, explosive, chemical-laden
or wet atmospheres.
In cases in which property damage may result from
malfunction of the heater, a backup system or a
temperature sensitive alarm should be used.
The open end of gas piping systems
being purged shall not be discharged into areas
where there are sources of ignition or into confi ned
spaces UNLESS precautions are taken as follows: (1)
By ventilation of the space, (2) control of purging rate,
(3) elimination of all hazardous conditions. All
precautions must be taken to perform this operation
in a safe manner!
Unless otherwise specifi ed, the following conversions
may be used for calculating SI unit measurements:
1 foot = 0.305 m
1 inch = 25.4 mm
1 gallon = 3.785 L
1 pound = 0.453 kg
1 psig = 6.894 kPa
1 cubic foot = 0.028 m
3
1000 BTU per hour = 0.293 kW
1 inch water column = 0.249 kPa
1000 BTU/Cu.Ft. = 37.5 MJ/m
3
Liter/second = CFM x 0.472
Meter/second = FPM ÷ 196.8
