CFH Startup Guide
Part No. 750-293
7
Limit Controls
(see
Figure 7
)
The operating and high pressure limit controls are
externally mounted to the boiler casing. For control
settings and testing instructions, see the boiler
operation manual.
1.7 Filling Boiler
Ensure that all feedwater equipment is properly installed and any feed
pumps, valves, etc. are in good working order.
Begin with the control panel DEMAND switch and the CC-BLOWER
switch (see
Figure 8
) in the OFF position. Open the boiler vent valve
(see
Figure 9
).
Turn the Control Circuit/Blower Switch ON to enable the feedwater
control circuit. If the CB Falcon icon does not appear on the display
when the CC/Blower switch is turned on, see
STARTING THE
BOILER
below.
With the vent valve open, entrapped air will be allowed to escape
while the boiler fills with water. Do not close the vent valve until water
is visible in the gauge glass. The feed pump will shut off when water reaches the ‘Pump Off’ probe level.
Check to ensure that no leaks appear at any pipe connections and correct if water leaks are noticed.
!
Warning
T h e M o d e l C F H i s f a c t o r y t e s t e d .
Nevertheless, all burner safety controls
should be checked upon installation, prior to
initial firing.
Failure to verify burner control
functioning could result in severe bodily
injury or death.
For detailed procedures on how to test the
safety controls, see the boiler Operation and
Maintenance Manual.
The use of soft water is highly recommended. Failure to observe this recommendation can lead to dangerous operating conditions,
and may result in damage to the boiler. If necessary, your Cleaver-Brooks representative can provide additional information
regarding your water softening requirements.
Figure 9 Filling the Boiler
OLC
HLC
Figure 7 Limit Controls
Figure 8 Control Panel
Switches
Important
!
Vent Valve
Gauge
Glass
Feedwater
Inlet
