Sterling RT - Manual (Page 3)

3
II. GENERAL SAFETY REQUIREMENTS
Open all disconnect switches
before installing the unit. Failure to do so may
result in personal injury or death from electrical
shock.
Failure to comply with the general
requirements 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.
Do not alter the duct furnace in any
way or damage to the unit, severe personal injury
or death will occur.
Never service any component
without fi rst disconnecting all electrical and gas
supplies to the unit or severe personal injury or
death may occur.
Insure that all power sources conform
to the unit requirements or damage to the unit may
result.
For all units that are equipped with gas fi red outdoor duct
furnaces (certifi ed by ETL) installation must be made in
accordance with local codes, or in the 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 was certifi ed. 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.
If installed in Canada, the installation must conform with
local building codes, or in the 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 outdoor duct furnaces have been
designed for and certifi ed to comply with CSA 2.8.
These units have been designed certifi ed for outdoor
use only, and may be located on the roof of the building
or at any convenient location external to the building to
be heated.
Make certain that the power sources conform to the
requirements of the heater.
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 gas connections should be made and leak-tested by a
suitably qualifi ed individual, per instructions in this manual.
Use only the fuel for which the heater is designed (see
nameplate). 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 could create
unsafe conditions that result in death, serious
injury or substantial property damage.
Make certain that power source conforms to electrical
requirements of heater. Disconnect power before installing
or servicing heater. If power disconnect is out of sight,
lock it in open position and tag it to prevent unexpected
application of power. Failure to do so could result in fatal
electric shock.
Do not depend upon a thermostat
or other switch as the sole means of dis-
connecting 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 from the service panel to the conduit
box of the heater. To ensure proper ground, the grounding
means must be tested by qualifi ed fi eld technician.
Do not insert fi 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 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.