GENERAL SAFETY INFORMATION
3
liter/second = CFM x 0.472
meter/second = FPM Ö 196.8
1000 Btu per hour = 0.293 kW
1000 Btu/Cu. Ft. = 37.5 MJ/m
3
1 inch water column = 0.249 kPa
1 cubic foot = 0.028 m
3
Failure to comply with the general
safety information may result in extensive
property damage, severe 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 ANSI Standard Z223.1 (N.F.P.A. No. 54)
National Fuel Gas Code.
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 certified. The ANSI Standards
are available from the American National Standards
Institute, Inc., 11 West 42nd Street, New York, NY
10036 or www.ansi.org. The NFPA Standards are
available from the National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269. These unit
heaters are designed for use in airplane hangars when
installed in accordance with ANSI/NFPA No. 409 and in
public garages when installed in accordance with 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 CGA-B149.1 ÒInstallation Codes for Natural
Gas Burning Appliances and EquipmentÓ or CGA-B149.2
ÒInstallation Codes for Propane Gas Burning Appliances
and EquipmentÓ. These unit heaters have been designed
and certiÞ ed to comply with CGA 2.6. Also see sections
on installation in AIRCRAFT HANGARS and PUBLIC
GARAGES.
Do not alter the unit heater 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.
Insure 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 external wiring must
conform to applicable current local codes, and to the
latest edition of the National Electric Code ANSI/NFPA
No. 70. In Canada, all external wiring must conform to
the Canadian Electric Code, Part 1 CSA Standard C22.1.
All wiring should be done and checked by a qualified
electrician, using copper wire only. All gas connections
should be made and leak-tested by a suitably qualiÞ ed
individual, per instructions in 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. Such conversion is dangerous, as it
will create the risks listed previously.
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 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 qualiÞ ed electrician.
Do not insert Þ ngers or foreign objects into the heater
or its air moving device. Do not block or tamper with the
heater in any manner while in operation or just after it
has been 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 ß ammable, explosive, chemical-laden
or wet atmospheres.
Do not attach ductwork to this product or use it as a
makeup air heater. Such usage voids the warranty and
will create unsafe operation.
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 piping systems being
purged shall not discharge into areas where there
are sources of ignition or into confined 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 speciÞ ed, the following conversions
may be used for calculating SI unit measurements:
1 gallon = 3.785 L
1 foot = 0.305 m
1 inch = 25.4 mm
1 psig = 6.894 kPa
1 pound = 0.453 kg
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