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Cleaning heat exchanger flue side, 155 (continued)
&IGURE Accessing the burner or heat exchanger (see Legend on page 104)
Do NOT attempt to remove the burner from the
heat exchanger cover plate without first remov-
ing the heat exchanger cover plate from heat
exchanger. Damage to refractory will result. This
damage is difficult to detect without the removal
of the cover plate.
Part number 550-142-122/0513
105
TM
GAS-FIRED WATER BOILER — Boiler Manual
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