CleaverBrooks 4WI, Operation, Service And Parts Manual

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Starting and Operating Instructions
5-2 750-211 (revised 2009)
Promethean Boilers, Model 4WI Manual
Refer to Chapter 3 for water requirements. On a steam boiler, open the test valve to vent air displaced during filling.
Leave the test valve open until steam is noted after the burner is operating.
Check all linkage for full and free movement of the damper and metering valves and cams. The check can be done
by loosening the linkage at the damper motor connecting arm and manipulating the linkage by hand.
Check for rotation of all motors by momentarily closing the motor starter or relay. The blower impeller rotation is
counterclockwise when viewed from the front of the boiler. The air pump rotation is clockwise when viewed from
the drive end.
FIGURE 5-1.
Air Compressor Motor Rotation
Before operating the boiler feed pump or oil supply pump, be sure all valves in the line are open or properly posi-
tioned.
For safety reasons, perform a final pre-startup inspection, especially checking for any loose or incomplete piping or
wiring or any other situations that might present a hazard.
5.2 — Control Settings: Steam and Hot Water
See Chapter 6 for adjustment instructions for the following controls. Inspect the operating limit control for proper
setting as follows:
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 differences in temperature
between pressure vessel and skids and to avoid damage to the equipment.
! Caution