Waterside Care
2-4
750-392
CBEX-DE
When initially firing a newly installed boiler, or when cutting an existing boiler into an operating system, the
boiler or boilers to be cut into operation MUST be pressurized equal to the system and/or other boilers prior to
opening the header valves.
Special caution must be taken to guard against any condition, or combination of conditions, that might lead to
the transfer of cold water to a hot boiler or hot water to a cold boiler. It cannot be overemphasized that rapid
changes in temperature within the boiler can cause damage.
2.3 — Water Treatment
Properly treated boiler feed water, combined with good engineering and operating practices, leads to maximum
effectiveness and long life of pressure vessels. Contact your local Cleaver-Brooks authorized representative for
information on how to prevent the presence of unwanted solids and corrosive gases.
Objectives of water treatment are:
1. Prevent hard scale deposits or soft sludge deposits, which reduce heat transfer and can lead to overheated
metal and costly downtime and repairs.
FIGURE 2-1. Internal Boiler Pressure
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