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SECTION 14: REPLACEMENT PARTS
37
14.3 Ignition Electrode and Flame Probe
14.4 Heat Exchanger
The heat exchanger consists of a six-pass design with 1.5" outer diameter [aluminized steel] [409 stainless
steel] tube. The tube plates are made of [aluminized steel] [409 stainless steel]. The tube supports are
made of [galvannealed steel] [409 stainless steel].
Inshot
Burners
.120
(3 mm)
spark
gap
Ignition
Electrode
Burner Compartment
Front Views
Manual Reset
Limit Switch
(Position may vary.)
Ignition
Electrode
Flame
Probe
Limit
Switch
Flame
Probe
Inshot
Burners
Description Part Number Qty
Spark Electrode 90427411 1
Automatic Ignition Flame Probe 90439300 1
Transformer 90436900K 1
Ignition Module 90434008 1
Inshot Burners UHD[X][S][R] 75 92000002 5
Inshot Burners UHD[X][S][R] 100 92000002 6
Inshot Burners UHD[X][S][R] 125 92000002 7
Limit Switch 90412104 1
Manual Reset Limit Switch (75 only) 90412106 1
To replace the electrode or flame probe, remove the electrical lead and screw.
Pull out from mounting. Refit in reverse ensuring that the gap to burner is as shown in the
front view of the burner compartment.