Form No. 43539470
Oct 2019 A
–26–
15.9)
REMOVAL OF MAIN BURNER – ALL MODELS
Replacement procedure:
1.
Rotate the latching knob and open the large size door at the burner/gas valve compartment.
Remove the gas valve as described in 14.9
2.
Remove the screw attaching the ground wiring onto the burner.
3.
For Pilot models disconnect the pilot assembly from the main burner by removing the wing screw.
4.
Remove the machine screw and washer from the bottom of the heater that is securing the main burner
and orifice holder block.
5.
Remove the (2) long screws that attach the burner. The spacers located between the burner and mounting
plate must be retained for re-installation.
6.
Start by pulling the burner foot out first. Care must be given not to disturb the spark or hot surface ignitor
and flame sensor.
7.
Replace these in reverse order. Perform a gas leak test in accordance with Section 8.0. Repeat lighting
and shutdown procedures in accordance with Section 10.0 to ensure proper burner ignition.
16.0)
GAS TYPE CONVERSION
Conversion procedure:
1.
Remove the gas train assembly as described in section 5.8)
2.
Remove the orifice as described in 5.8) 6.
3.
Install new orifice for the different gas type. See section 5.0) SPECIFICATIONS and section 18.0)
REPLACEMENT PARTS GUIDE.
4.
Reinstall gas train assembly as described in section 5.8)
5.
Attach conversion label to heater.
6.
Commission heater and adjust gas valve pressures as per section 8.0)