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Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
4.6.2 Switchover from PROPANE to NATURAL GAS
To switch from Propane Gas to Natural Gas operation, proceed as follows:
Switchover from PROPANE to NATURAL GAS
1. Set the ON/OFF switch on the C-More Controller to the OFF position.
2. Close the external Propane Gas supply valves.
3. Open the external Natural Gas supply valves.
4. Refer to Figure 4-6 and locate the Fuel Selector Switch on the front of the unit.
5. Set the Fuel Selector Switch to the NATURAL GAS position. A Low Gas pressure Fault
message will be displayed on the Control Box.
6. Clear the Low Gas Pressure Fault by pressing the CLEAR key.
7. Apply AC power to the unit.
8. Press the MENU key once. Setup Menu will be displayed.
9.
Press the ▲ arrow key once. Password will be displayed.
10. Press the CHANGE key. Password will begin to flash.
11. Using the ▲ arrow key, increment the display and stop at 159.
12. Press the ENTER key to store the displayed password.
13. Password 1 will be displayed, indicating that the valid Level 1 password has been stored.
14. Next, access the Configuration Menu by pressing the MENU key once.
15. Using the ▲ and ▼ arrow keys, scroll through the Configuration Menu and stop at Fuel
Type.
OMM-0099_0A
GF-145
CHAPTER 4 – INITIAL START-UP
PARTIAL FRONT VIEW WITH FRONT DOOR REMOVED
Figure 4-6: Dual-Fuel Switchover Location
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
FUEL SELECTOR
SWITCH
Page 65 of 234
PR1: 05/21/2014
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