750-392
CBEX-DE
3-1
CHAPTER 3 Preparations for Startup
3.1 — Pre-Startup Adjustments
Each Cleaver-Brooks boiler is tested for correct operation before shipment from the factory. However, variable
conditions such as burning characteristics of the fuel and operating load conditions may require further adjust-
ment after installation to assure maximum operating efficiency and economy.
A combustion efficiency analysis made during the initial startup will help to determine what additional adjust-
ments are required in a particular installation.
Prior to placing the boiler into service, a complete inspection should be made of all controls, connecting piping,
wiring, and all fastenings such as nuts, bolts, and setscrews to be sure that no damage has occurred, or that
adjustments have not changed during shipment and installation.
These adjustment procedures apply to standard components furnished on steam or hot water boilers fired with
gas and/or light oil.
Verify supply of fuel and proper voltage. Check for blown fuses, open circuit breakers, dropped out overloads, etc.
Check reset of all starters and controls having manual reset features. Check the lockout switch on the flame safe-
guard and reset if necessary.
The pressure vessel support legs are welded to mounting skids in front and secured by bolts at the rear of the
pressure vessel. The bolts are tightened for shipment. When the boiler is installed, and prior to initial firing, the
bolts securing the rear legs to the skid must be loosened to allow for expansion and contraction caused by differ-
ences in temperature between pressure vessel and skids and to avoid damage to the equipment.
Prior to firing a boiler, be sure that discharge piping from safety valves or relief valves, and discharge piping from all
blowdown and drain valves, is piped to a safe point of discharge, so that emission of hot water or steam cannot pos-
sibly cause injury. Failure to follow these instructions could result in serious injury or death.
!
Caution
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Warning
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