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Start-Up Procedures e. Press the LEFT and RIGHT buttons to adjust the firing rate from 0% to 100%. Hold down the LEFT or RIGHT button to rapidly increase or decrease the firing rate. c Measure Input - Natural Gas Only 1. Ensure the boiler is firing at maximum firing rate. To manually place the boiler into high fire mode, reference page 60. 2. Operate the unit for approximately 10 minutes. Table 4: Recommended Combustion Levels Natural Gas Propane 3. Turn off all gas appliances within the building, except the PRESTIGE Solo. O2 Min. 2.30% 2.70% O2 Max. 5.30% 4.70% 4. At the gas meter, record the time required to use one cubic foot of gas. CO2 Min. 8.80% 10.70% CO2 Max. 10.50% 12.00% CO Max. 100 ppm 100 ppm 5. Calculate Natural gas input using the following equation: 3600 x 1000 / number of second recorded for one cubic foot of gas = BTU/H. 6. The BTU/H calculated should approximate the input rating listed on the unit. f. Press the OK button while the FAN icon is highlighted to shutdown the burner. g. Cycle power to the Prestige once combustion testing is complete to return to normal operation. WARNING The combustion levels should be measured at high firing rate. If the combustion levels are not within the range given in Table 4 for the firing rate, shut the boiler down and contact Triangle Tube Engineering Department. Failure to comply with this requirement could result in severe personal injury, death or substantial property damage. 61