User Manual

Omega II
®
Installation, Operation & Service
Combustion Research Corporation
WARNING
FIRE OR EXPLOSION HAZARD
Can cause death, severe injury and/or property damage.
1. Read this manual carefully before installing or servicing
this equipment. Improper installation, service or
maintenance can cause death, injury and/or property
damage.
2. Check clearances given on the outside of each burner to
make sure the product is suitable for your application.
3. Installer must be a trained, experienced service
technician.
4. All service must be performed only by a trained service
technician or representative
5. After installation is complete, check system operation as
provided in these instructions.
Combustibles: Failure to maintain the specified minimum
clearances to combustibles could result in a serious fire
hazard. Do not locate flammable or combustible materials
within this distance. Signs must be posted near thermostat
and in storage areas to specify maximum stacking height to
maintain required clearances to combustibles. Do not locate
in hazardous atmospheres containing flammable vapors or
combustible dust.
United States: Installations in public garages or airplane
hangars are permitted when in accordance with NFPA-88
(latest edition) and NFPA-409 (latest edition) Codes.
Canada: Installation in public garages and airplane hangars
is permitted when in accordance with CAN/CGA B.149.1 &
CAN/CGA B149.2.
Vehicles: Minimum clearances must be maintained from
vehicles parked, below the heater. Ensure that adequate
clearance is maintained where vehicles are in operation or
being serviced.
Gas Connection: There is an expansion of the radiant pipe
With each firing cycle, and this will cause the burner to move
with respect to the gas line. This can cause a gas leak
resulting in an unsafe condition if the gas connection in not
made strictly in accordance with page 13 of these
instructions.
Ignition: This appliance does not have a pilot. It is equipped
with an ignition device, which automatically lights the burner.
Do not try to light the burner by hand.
Mechanical Hazard - Vacuum Exhauster: High speed
rotating vacuum exhauster impeller/wheel can cause severe
injury. Do not operate the vacuum exhauster without
impeller. Loose clothing can be drawn into unguarded inlet
and entangle with impeller wheel. Keep hands and fingers
away from inlet and outlet. Install exhaust duct with "bird
screen" or approved vent cap on vacuum exhauster outlet.
Mechanical Hazard - Suspension: Use appropriate
suspension hardware, beam clamps (rod or perforated
strap) and turnbuckles at predetermined locations. The
weight and normal movement of the heating system may
cause support failure if the following minimum suspension
requirements are not met: Distance between combination
hangers must be 10-ft. (3 M) or less; chain size must be 3/0
minimum or equivalent.
NOTICE CAUTION
Failure to follow these instructions can cause personal injury
or property damage:
Caution must be used when running the system near
combustible materials such as wood, paper, rubber, etc.
Consideration should be given to partitions, storage racks,
hoists, building construction, etc. Page 16 & 17 outlines
minimum acceptable clearances to combustibles.
If the building has a slight negative pressure or
contaminants are present in the air, an outside combustion
air supply to the heaters is strongly recommended.
Do not use in an atmosphere containing halogenated
hydrocarbons or other corrosive chemicals. Some
compounds in the air can be drawn into the equipment and
can cause an accelerated rate of corrosion of some parts of
the radiant heat exchanger. The use of such chemical
compounds in or near the enclosure should be avoided
where a longer life of the burner, tubing and other parts is
desirable.
Failure to follow these instructions can cause damage to the
system components:
DO NOT high-pressure test the gas piping with the burners
connected. Failure to follow this procedure will exceed the
pressure rating of burner gas controls and this will require
complete replacement of these parts.
DO NOT operate a blower with an unrestricted inlet. An
unrestricted airflow will overload the motor, which can cause
burnout or failure.
This heater is designed for heating nonresidential indoor
spaces. These instructions, the layout drawing, local codes
and ordinances, and applicable standards that apply to gas
piping, electrical wiring, venting, etc. must be thoroughly
understood before proceeding with the installation.
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