Propane Gas Combustion Calibration - Watts AERCO Benchmark BMK5000 Operation And Service Manual

Benchmark Platinum-Edge [ii]: Operation-Service Manual
SECTION 4 – INITIAL START-UP

4.5.2 PROPANE Gas Combustion Calibration

These instructions apply only to units running PROPANE gas.
PROPANE Combustion Calibration Instructions
1. Set the Edge Controller's Enable/Disable switch to Disable.
2. Open the water supply and return valves to the unit and ensure that the system pumps are
running.
3. Open the PROPANE supply valve to the unit.
4. Turn external AC power to the unit ON.
5. On the Controller, go to:
enter a technician level password.
6. The first Manual Combustion Calibration screen appears. Complete the three steps
listed before continuing with the instructions. In addition, if your unit is running AERtrim,
you must turn that feature off before continuing, as AERtrim will interfere with combustion
calibration.
Figure 4-7: First Manual Combustion Calibration Screen
7. Connect the gas pressure manometer to the upstream side of the gas train's SSOV, as
shown in Section 4.2.2 and connect the Combustion Analyzer and Multimeter, as shown in
Section 4.2.3, and ensure that the heating loop is capable of dissipating sufficient heat at
full fire.
8. Verify that the incoming gas pressure to the unit is within the allowable range (see the
Benchmark Gas Supply Guide (TAG-0047, GF-2030)).
9. Once you have completed the previous step, move the manometer (or use a secondary
one) to the downstream side of the SSOV and press Next to continue.
10. For the NOx requirement choose None.
OMM-0137_J •
12/20/2022
Main Menu → Calibration → Manual
Figure 4-8: Choose NOx Requirement
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
Combustion. If necessary,
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