Form 2055
10
Revision Date 5/1/2015
Assurance that the boiler is fed with only treated water at all times and that chemical
treatment and blowdown procedures are always followed.
Notification to the manufacturer (or manufacturer’s agent) to provide start-up services if
the boiler was purchased with start-up by a factory representative.
Adherence to all of the start-up procedures noted in the boiler manual.
Considerations of warranty should the boiler be used for temporary heat without
adherence to the recommended start-up and operating procedures outlined in the
instruction manuals.
3.2 CLEANING THE BOILER AND SYSTEM - NEW SYSTEMS
3 . 2 . 1 B O I L O U T P R O C E D U R E
The internal surfaces of a newly installed boiler will have oil, grease or other protective coatings
used in manufacturing. Such coatings must be removed since these coatings lower the heat
transfer rate and reduce operating efficiency. The operator must be familiar with the procedure
outlined in the boiler operating instruction manuals.
In combination with system contamination, bacteria may cause objectionable odors, sometimes
resembling natural gas. It is important to keep these fumes from air intakes which would distribute
them throughout the building. On steam humidification systems this is especially critical. Consult
your local water treatment chemist for further information.
CAUTION
The boil out procedure outlined must be performed by, or under the direct supervision of, a
qualified technician. The chemicals used present a hazard of burns and physical injury if
mishandled. Always use suitable facemask, goggles, protective gloves and garments when
handling caustic chemicals. Do not permit the chemical to come into contact with skin or clothing.
Always follow the safety precautions on the container's label. Add chemicals slowly and in small
amounts to prevent excessive heat and agitation. Do not add water to acid. Do not add water to
dry chemicals. This will cause splattering and/or explosion and severe risk of personal injury.
Boiling out under pressure is not recommended. If boil out under pressure is required, competent
assistance must be provided.
Your water consultant or water treatment company will be able to recommend a cleaning or boil
out procedure. In the event that such service is unavailable or as yet not selected, the following
may be used:
The boil out of the boiler and system is neither difficult nor expensive. The chemicals needed for
cleaning are readily available. Tri-sodium phosphate or sodium hydroxide (lye) are the most
commonly used chemicals. Use only one type of solution in the system. The amount of chemical
required will vary according to conditions, but an amount of one pound of chemical per fifty gallons
of water is suggested.