27
3. To begin removing gas train assembly, gently lift up rear of housing cover while pulling back. Rotate the assembly
about 90 degrees toward the left side of the burner and gently extract burner head and electrode/sensor assembly
out of opening in housing taking extreme care to not dislocate or damage electrode or sensor probe (Figure 15).
Figure 15
Figure 16
4. When servicing, clean burner head ports, electrodes and sensor probe. Inspect the sensor probe and electrode
wires and porcelain insulators carefully for hairline cracks which might provide an electrical leak path that could
short out the ignition spark or flame signal.
5. Examine the electrode and sensor probe for any serious corrosion or deterioration of metal at the tips. Check for
proper dimensional settings of the sensor probe and electrode (See Figure 1). Adjust and/or replace these
assemblies as necessary. Make sure that the ignition and sensor probe wires go to the correct electrodes and the
ignition wire boot is in place over the electrode porcelain.
6. Make sure that the burner tube end is properly positioned in the combustion chamber entry. It must be set 1/2”
(12.7mm) short of the inside face of the combustion chamber.
Summary of Contents for EHG
Page 16: ...16 EHG POWER GAS BURNER WITH HONEYWELL S89F GAS PRIMARY AND GAS TRAIN ASSEMBLY Figure 11...
Page 35: ...35 Cover Manifold Orifice Assembly Figure 27...
Page 36: ...36 Burner Exploded and Assembled Views 64021 003 Figure 28...
Page 38: ...38 Control Box Assembly 63479 004 or 63479 005 Figure 29...
Page 39: ...39 Control Box Assembly 63479 004 or 63479 005 Figure 29 Continued...
Page 41: ...41 Gas Train Assembly with Regulator 63527 001 Figure 31...
Page 44: ...44 Flange 20614 Figure 33...
Page 47: ...47 NOTES...
