750-392
CBEX-DE
2-1
CHAPTER 2 Waterside Care
The operator should be familiar with this chapter before attempting to place the unit into operation.
Although it is of prime importance, the subject of water supply and treatment cannot thoroughly be covered
within the scope of this manual. For additional assistance with your water treatment needs, contact your Cleaver-
Brooks service and parts representative. Ultimately a water treatment expert should be consulted to obtain the
best treatment plan for your location.
Feedwater equipment should be ready for use upon installation of the boiler. Be sure that all valves, piping, boiler
feed pumps, and receivers are installed in accordance with prevailing codes and practices.
Strict attention to waterside care is essential during initial commissioning and throughout the lifetime of the
boiler. When placing the pressure vessel into initial service, keep in mind that the waterside of new boilers and
new or remodeled steam systems may contain oil, grease or other foreign matter. A method of boiling out the ves-
sel to remove the accumulations is described later in this chapter.
2.1 — Water requirements - steam boilers
Feed Pump Operation
Before turning on the pump motor be certain that all valves in the water feed line are open to prevent possible
damage to the feed pump mechanism. After opening the valves, momentarily energize the feed pump motor to
establish correct pump rotation. With the correct rotation established, close the boiler feed pump entrance
switch. The pump should shut down when the water level reaches the proper level.
Feedwater pumps must have adequate capacity to maintain required water level under all operating conditions.
Check the feedwater pumps periodically and maintain as necessary to prevent unexpected breakdowns.
NOTE: Prior to operating the pump, carefully check the alignment of the flexible coupling, if one is used. A properly
aligned coupling will last a long time and provide trouble-free mechanical operation.
NOTE: For new installations a startup strainer is recommended. Contact the pump manufacturer for details.
NOTE: In the event that water column isolation valves are provided, it must be established that the valves are open
and seated or locked in the open position. It is illegal to operate the boiler with closed or unseated open valves.
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