Columbia CEG-C, Инструкция по установке, эксплуатации и обслуживанию

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21
CLEANING BOILER FLUE-WAYS
To Clean The Boiler Flue-ways:
1.
Remove the burners from the combustion
chamber by raising the burners upward from the
manifold ori fi ces and pulling toward the front of
the boiler. To remove the burner with the pilot
burner attached, fi rst disconnect the pilot line
tubing and thermocouple or pilot generator leads
at the main electric gas valve. Do not remove the
pilot line tubing at the pilot as the pilot burner
ori fi ce may drop out and become damaged or
lost.
2.
Disconnect the vent pipe from the draft hood.
3. Remove the draft hood. The draft hood is
attached to the fl ue collector at the top by sheet
metal screw(s).
4.
Remove the top jacket panel. It is attached to the
jacket by sheet metal screws.
5.
Remove the fl ue collector from the boiler casting
by loosening the nuts on the “J” bolts at either
side of the fl ue collector.
6.
Place a sheet of heavy paper or similar material
over the bottom of the combustion chamber
and brush down the fl ue passageways. The soot
and scale will collect on the paper and is easily
removed with the paper.
7. With the paper still in place in the combustion
chamber, clean the top of the boiler castings of
the boiler putty or silicone used to seal between
the castings and the fl ue collector. Make certain
chips are not lodged in the fl ue-ways.
8.
When the cleaning process is completed, restore
the boiler components to their original position.
Use boiler putty or GE IS-808 silicone to seal
around the fl ue collector and castings. Make
certain the burner ends are inserted in the slots
at the back of the combustion chamber and well
down in position over the burner ori fi ces. Follow
the lighting instructions on the boiler to put the
burners back in operation.
Check Safety Control Circuit, after burner
adjustments are made, for satisfactory operation.
!
CAUTION
Label all wires prior to disconnection
when servicing controls. Wiring errors
can cause improper and dangerous
operation.
Verify proper operation after servicing.
1.
Pilot: with main burner operating turn the
pilot gas adjusting screw clockwise
until pilot gas is turned off. See fi gures 8 and 9 on
page 17. Within 90 seconds the main gas control
should close, shutting off the gas to the main
burner. After checking pilot operation, relight
following lighting instructions on pages 16-17.
2. Pressure control - on steam boilers - remove
cover and note pressure setting. With the boiler
operating, decrease the setting. When setting
is lower than boiler pressure, the control will
open, closing the automatic main gas valve. After
checking pressure control, reset control to original
setting.
3.
Mechanical Low water cut-off: Operation may
checked by opening the blow-off valve located
in the lower portion of the body. This will drain
water quickly from the cut-off body and break
circuit to automatic main gas valve. Owner should
blow off this control at least once each month of
the heating season.
!
WARNING
Water will be boiling hot water.
4.
Electronic Low Water Cut-off: Operation may be
checked by opening the drain valve in the back
side of the boiler. This will drain the water from
the boiler and break the electronic circuit to the
automatic gas valve.
IMPURITIES IN BOILER WATER of a steam
boiler may cause foaming and an unsteady water
line, or prevent steam generation. They may result
in objectionable odors escaping from the vents on
water boilers. This condition is caused by oil, grease,
and sediment from pipe fi ttings collecting within the
boiler and can be remedied only by giving the boiler a
thorough cleaning.
BOILERS CAN BE CLEANED by skimming or
blowing down.
!
CAUTION
Boiler should not be left unattended
during cleaning process.