FULTON VSRT 10, Инструкция по установке и эксплуатации, Страница: 64 / 91

4 - MAINTENANCE & TROUBLESHOOTING
© Fulton 2018
4-4
VSRT_IOM_2018-1213
compounds, make sure that this treatment
is carried out carefully and according to the
chemical supplier’s instructions.
OTE:
–
Fulton recommends that the feedwater
chemical treatment should be added between the
pump and the boiler.
4. Check water level in sight glass.
5. Check to be sure feed water pump is working.
6. For float type water level control, blow down the
float chamber.
7. Check water chemistry.
!
CAUTION
If the feed water is being treated by chemical
compounds, make sure that this treatment is
carried out carefully and according to the supplier’s
instructions.
NOTE
Recommended Weekly Maintenance
Schedule
Weekly maintenance and inspection must include
checking that the low water cut-off relay is operating
correctly in the following manner:
1. Make sure that the boiler is cool with little or no
pressure showing on the steam pressure gauge.
2. With burner operating, open the boiler blow-
down valves. When the water drops below the
required level (note the level in the water gauge
glass), the burner should shut off; this is when
the water level falls below the primary low water
cutoff device in the water column assembly and/
or the boiler shell. Manual reset of the secondary
low water cutoff device is required.
!
CAUTION
Correct combustion air adjustment is essential for the
efficient operation of this boiler. If an adjustment to
the combustion is necessary, the flue gas composition
should be checked with a combustion analyzer to set
conditions.
QUICK OPENING VALVE
A B C
PRIMARY
LOW WATER
CUTOFF
PUMP OFF
PUMP ON
SLOW OPENING VALVE
AUX LOW
WATER
CUTOFF
BOILER SHELL
BOILER WATER COLUMN
Length Part#
A: 7¼" 2-20-000010
B: 9¼" 2-20-000011
C: 10½" 2-20-000106
D: 19" 2-20-000290
SIGHT GLASS
BLOWDOWN
VALVE
WATER COLUMN
BLOWDOWN
VALVE
TOP OF BOILER
Figure 20 - Water Column