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

Omega II

®

 Installation, Operation & Maintenance 

Page 28 

Combustion Research Corporation 

GENERAL SAFETY INFORMATION 

Follow all local electrical and safety codes, as well as the 
National Electrical code (NEC) and the Occupational Safety 
and Health Act (OSHA). 

1. 

OMEGA II

®

 BURNER ASSEMBLY

 must be securely 

and adequately grounded.  This can be accomplished 
by wiring with a grounded, metal-clad raceway system, 
by using a separate ground wire connected to the bare 
metal of the blower frame, or other suitable means. 

2.  Always disconnect power source before working on or 

near a motor to its connected load.  If the power 
disconnect point is out of sight, lock it in the open 
position and tag to prevent unexpected application of 
power. 

3.  Be careful when touching the exterior of an operating 

motor -- it may be hot enough to be painful or cause 
injury.  With modern motors, this condition is normal 
when operating at rated load and voltages -- modern 
motors are built to operate at higher temperatures. 

4.  Protect the power cable from coming in contact with 

sharp objects. 

5.  Do not kink the power cable and never allow the cable 

to come in contact with oil, grease, hot surfaces, or 
chemicals. 

6.  Make certain that the power source conforms to the 

requirements of your equipment. 

7.  When cleaning electrical or electronic equipment, 

always use an approved cleaning agent such as dry 
cleaning solvent. 

8.  This is not an explosion proof blower.  Do not use 

where explosive fumes or gases are present. 

OPERATION 

Before connecting the system to the electric supply, check 
the electrical characteristics as indicated on the Rating/ 
Nameplate to insure proper voltage. 

With the air system in full operation and all ducts attached, 
measure current input to the motor and compare with the 
nameplate rating to determine if the motor is operating at 
safe load conditions and not overloaded. 

RADIANT TUBING CHECK 

1.  Inspect entire network of radiant tubing to insure that all 

fittings are securely screwed together. 

2.  Inspect entire network of radiant tubing to insure that 

system is straight and assembled in a good 
workmanship manner. 

PRECONDITIONS TO BE CHECKED 
BEFORE BURNER SYSTEM STARTUP 

1.  System has been installed to Combustion Research 

Corporation recommendations in Installation Manual 
and nameplate data. 

2.  the system must be installed with adequate clearance to 

combustibles as outlined in this manual. In storage 
areas where stacking of materials may occur, the 

installer must provide signs which specify the maximum 
stacking height so as to maintain the required clearance 
to combustibles. 

3.  Electrical input to building.  It must provide a minimum 

service requirement for each heating zone as follows:  
15 amp service, 115V AC/60 Hz (1-ph.).  Check total 
system amperage requirements for proper service 
requirements 

4.  NATURAL GAS SERVICE 

a.  Meter and pipe work to be adequate size for total 
building requirements 
b.  1030 Btu/ft

3

 at minimum of six inches (6") or seven 

inches (7"), as outlined in the technical data section of 
this manual, W.C. at input side of burner regulator 
during full operational load.  (Manifold pressure is 3.5" 
W.C.). 

5.  Propane Service  

a.  Storage tanks should be large enough to vaporize 
required maximum load of the installed heating 
equipment. 
b.  Vaporizer system and high pressure regulators 
system installed as required and set at 13.5 W.C. outlet. 
c. 2500 Btu/ft

3

 at minimum of 11.0" at input side of 

regulator on burner during operation.  (Manifold 
pressure is 10.0" W.C.) 

6.  All gas valves in meter house and service cocks open.  

All feed lines have been purged of air. 

7.  When high pressure gas supplies are used, make sure 

the proper regulators, manual valves and flexes have 
been installed properly. 

8.  Combustion air and exhaust connections have been 

installed and are secure.