Fuel Conversion Instructions - IBC SL 26-260 G3 Quick Start Manual

Fuel Conversion Instructions

The following procedure must be carried out by a qualified technician.
Caution
Before you disconnect the electrical power, you must shut off the gas supply.
To perform a fuel conversion:
1. Ensure that the gas supply is turned off at the gas shut-off valve.
2. Undo the brass coupling nut between the gas valve and the venturi mixing device.
3. Move the gas valve to the side.
4. Note the orientation and the screw positions of the venturi mixing device.
5. Remove the venturi mixing device from the base of the fan by unscrewing the Phillips Head screws.
6. Install the new fuel-appropriate venturi mixing device using the Phillips Head screws.
7. Check that the gasket is in place between the gas valve and the venturi mixing device.
8. Connect the gas valve to the venturi mixing device using the brass coupler nut attached to the gas valve.
Now, carefully follow the procedures on combustion testing and the correct adjustment.
Combustion testing and adjustment
Danger
A combustion test checks that the gas valve is operating properly in the field. To perform a
combustion test, you must be a qualified, trained and licensed gas fitter.
Making adjustments to the IBC gas valve without a properly calibrated gas combustion analyzer and
by people who are not trained and experienced in its use is forbidden. Failure to use an analyzer can
result in an immediate hazard.
Model Number
SL 26-260 G3
Table 2 Rated input of a converted boiler
Normal ignition system sequence of operation:
The boiler control, upon a call for heat or DHW, turns on the combustion fan for a 20-second pre-purge, then
energizes the spark electrode and gas valve for a 4-second trial for ignition.
SL 26-260 G3 - Conversion to propane (NG-LP) - P-Kit 300
High Fire Input
260 MBH
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