Start-Up Procedures
WARNING
Venting system must be sealed
Check Gas Piping
1.Check around the unit for gas odor fol- lowing the procedure outlined in this manual on Page 49.
WARNING
If any gas leaks are found or suspected, shut the unit down immediately. Use a gas detection device or bubble test to locate the source of the gas leak and repair at once. Do not operate the unit until the leak is corrected. Failure to comply with this procedure could result in severe personal injury, death or sub- stantial property damage.
Verify Flame Pattern and Combustion
Check the flame pattern through the inspection port of the burner. The flame should be blue and stable. The flame should be the length of the burn- er head openings.
Remove the test plug located on the flue hood and insert a combustion test probe.
Test for CO2 or O2 and for CO. The combustion reading should be within the range listed in Table 5. The CO level should not exceed 100 ppm when combustion is correct.
To adjust the combustion level open or close the air shutter by a 1/2 setting.
-Closing the air shutter will decrease the O2 level and increase the CO2 level.
-Opening the air shutter will increase the O2 level and decrease the CO2 level.
WARNING
A combustion test must be performed after any adjustments are made. Allow the unit to operate for approximately 10 minutes after adjustment before measur- ing any combustion levels. Failure to comply with these procedures could result in severe personal injury, death or substantial property damage.
Table 5: Recommended Combustion Levels
| Natural Gas | Propane |
|
|
|
O2 Min. | 3.00% | 3.00% |
O2 Max. | 5.00% | 5.00% |
CO2 Min | 9.00% | 10.50% |
CO2 Max | 10.00% | 12.00% |
|
|
|
WARNING
Replace the test port plug when the com- bustion test is completed to prevent flue gas spillage into the building. Failure to comply with this procedure could result in severe personal injury, death or sub- stantial property damage.
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.
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