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Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 4
– INITIAL START-UP
OMM-0145_A99
• GF-218 • 9/18/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
67
of
157
4.6 DUAL FUEL SWITCHOVER
All Benchmark Dual Fuel models contain a fuel selector switch, located to the right of the I/O
board, behind the front panel.
Figure 4-10: Dual Fuel Switch
Switchover from NATURAL GAS to PROPANE Instructions
1. Set the Edge [i] Controller
’s
Enable/Disable
switch to
Disable
.
2. Close the external Natural Gas supply valve.
3. Open the external Propane gas supply valve.
4. Locate the Fuel Selector Switch (see Figure 4-10), behind the front door.
5. Set the Fuel Selector Switch from
NAT GAS
to
PROPANE
.
6. Replace the front door panel previously removed from the boiler.
Switchover from PROPANE to NATURAL GAS Instructions
1. Set the Edge [i] Controller
’s
Enable/Disable
switch to
Disable
.
2. Close the external Propane Gas supply valve.
3. Open the external Natural Gas supply valve.
4. Locate the Fuel Selector Switch (see Figure 4-10), behind the front door.
5. Set the Fuel Selector Switch from
PROPANE
to
NAT GAS
.
6. Replace the front door panel previously removed from the boiler.
FUEL SELECTOR
SWITCH