Hot Water Controls (All Fuels) - CleaverBrooks FLX Operation, Service And Parts Manual

Chapter 1
1 2
1.
HIGH LIMIT PRESSURE CONTROL
2.
OPERATING LIMIT PRESSURE CONTROL
3.
MODULATING PRESSURE CONTROL
Figure 1-3: Steam Controls
Figure 1-4: Low Water Cut Off (LWCO)
Figure 1-5: Low Water Cut Off Pump Control
(Cutaway)
1-4
avoid overtightening, which can distort the seats. Use
only flat-jawed wrenches on the flats provided. When
installing a flange-connected valve, use a new gasket and
3
draw the mounting bolts down evenly. Do not install or
remove side outlet valves by using a pipe or wrench in
the outlet.
Only properly certified personnel such as
the safety valve manufacturer's certified
representative can adjust or repair the
boiler safety valves. Failure to follow these
i n s t r u c t i o n s c o u l d r e s u l t i n s e r i o u s
personal injury or death
E. Hot Water Controls (All Fuels)
1. Water Temperature Gauge (Figure 1-7): Indicates the
boiler internal water pressure.
2. Water Pressure Gauge (Figure 1-7): Indicates the internal
pressure of the boiler.
3. Operating Limit Temperature Control (Figure 1-7):
Breaks a circuit to stop burner operation on a rise of
boiler temperature at a selected setting. It is adjusted to
GENERAL DESCRIPTION
WARNING
! DANGER
Figure 1-6: Safety Valve Cutaway
750-177