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Start-Up Procedures
A combustion test must be performed
after any burner adjustments are made.
Allow the unit to operate for approxi-
mately 10 minutes after adjustment
before measuring any combustion levels.
Failure to comply with these procedures
could result in severe personal injury,
death or substantial property damage.
Check overfire draft
The overfire draft should measure typi-
cally (-) 0.01” w.c to(-) 0.02” w.c in the
combustion chamber. Refer to Triangle
Tube’s Burner Specification for actual
measurements.
Measure Input - Natural Gas Only
1. Operate the unit for approximately 10
minutes.
2. Turn off all gas appliances within the
building.
3. At the gas meter, record the time
required to use one cubic foot of gas.
4. Calculate gas input using the following
equation:
3600 x 1000 / number of second record-
ed for one cubic of gas = BTU/H.
5. The BTU/H calculated should approxi-
mate the input rating listed on the unit.
WARNING
Natural Gas Propane Oil
O2 Min. 3.00% 3.00% 4.60%
O2 Max. 5.00% 5.00% 6.00%
CO2 Min 9.00% 10.50% 11.00%
CO2 Max 10.00% 12.00% 12.00%
Table 2: Recommended Combustion Levels