Troubleshooting
The steam generator is designed to operate smoothly and efficiently if properly maintained. However, in the
event of a problem, the following list of checks maybe employed. If an item on the list is followed by an asterisk
(*);. the work should be done only by a. qualified service representative.
CAUTION:
USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY GROEN OR THEIR
AUTHORIZED DISTRIBUTOR VOIDS ALL WARRANTIES, AND CAN CAUSE BODILY INJURY TO THE
OPERATOR AND DAMAGE TO THE EQUIPMENT. SERVICE PERFORMED BY OTHER THAN FACTORY
AUTHORIZED PERSONNEL WILL VOID ALL WARRANTIES.
NOTE: A wiring diagram is furnished on the inside of the cabinet door. The wiring of controls may be checked
against this diagram.
A. All models
SYMPTOM
WHAT TO CHECK
a.
That main water supply valve is open and water is
being supplied to the building.
b.
Water switch to confirm it is on.
c.
That electric power is on. Check main circuit
breaker or fuse and power supply to the building.
d.
Strainer for build-up of solids.
e.
For a defective water level control board (by
checking continuity) or for a loose connection (Ref.
22).'
f.
For defective water feed solenoid valve. Check coil
for continuity, and replace, if defective (Ref. 36).*
g.
Wiring for continuity."
h.
For a defect in the ON/OFF switch (Ref. 3).'
Water does not enter generator.
i.
Water level sensing probe for defect or sea's
accumulation. Clean or replace. if necessary (Ref.
6 or 38).*
a.
Levelness of unit, by placing a spirit level on top of
the cabinet.
b.
Water supply pressure may be too high. Adjust to
25 PSI.
c.
Water level control. Clean and adjust, if necessary
(Ref. 6 or 38).'
d.
That water feed solenoid valve closes. Clean valve
seat and strainer, if necessary (Ref. 5 or 38).*
Generator overfills with water.
e.
Water level control probe for a short (Ref. 6 or 38)'
Generator underfills with water.
a. Levelness of unit. by placing a spirit level on top of
the cabinet.
11
Содержание NGB
Страница 18: ......
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Страница 22: ...For NGB 2 NGB 2 E Made After August 7 1991...
Страница 23: ...Electrical Schematics For NGB 2 made between January 1 1988 and August 7 1991...
Страница 24: ...Electrical Schematics For NGB NGB E made before January 1 1988...
Страница 25: ...Wiring Ladder Diagrams...