Combustion Research Omega II, Installation, Operating, Maintenance And Parts 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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