CleaverBrooks 4WI, Operation, Service And Parts Manual

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750-211 (revised 2009)
Promethean Boilers, Model 4WI Manual 8-3
8.2 — Fireside Cleaning
Cleaver-Brooks boilers are designed, engineered, and built to provide long life and excellent service. Good operat-
ing practices and conscientious maintenance and care will assure efficiency and economy from their operation, and
will contribute to many years of performance.
A total protection plan includes a Planned Maintenance Program that covers many of the items included in this
chapter.
For information regarding a total protection plan, contact your local Cleaver-Brooks authorized representative.
8.2 — Fireside Cleaning
Soot and non-combustibles are effective insulators, and, if allowed to
accumulate, will reduce heat transfer to the water and increase fuel
consumption. Soot and other deposits can be very moisture-absor-
bent, and may attract moisture to form corrosive acids that will dete-
riorate fireside metal.
Clean-out should be performed at regular and frequent intervals,
depending upon load, type, and quality of fuel, internal boiler
temperature, and combustion efficiency. A stack temperature
thermometer can be used as a guide to clean-out intervals since an
accumulation of soot deposits will raise the flue gas temperature.
FIGURE 8-1.
Stack Thermometer
Tube cleaning is accomplished by opening the front and rear
doors. Tubes may be brushed from either end. All loose soot and
accumulations should be removed. Any soot, or other deposits,
should be removed from the furnace and tube sheets.
Refer to Section 8.17 for instructions on properly closing rear
heads.
FIGURE 8-2.
Front Head Open
NOTE: Cleaver-Brooks genuine parts should be used to ensure proper operation. Contact your local Cleaver-Brooks
representative for parts information and ordering.