Groen NGB, Руководство оператора

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a.
Strainer screen on water feed Solenoid valve,
and clean or replace, if necessary (Ref. 6 or
38).*
b.
Seat of feed valve for dirt or lime
accumulation. Clean necessary (Ref.'6 or
38)*
Water enters generator very slowly.
c.
Pressure of water supply. Adjust to 25-30
PSI, if necessary-*
a.
Water level. If it is low, wait for generator to
till.
Indicator light does not come on when generator
is reset manually.
b. For defective indicator light (Ref. 2). *
a.
That main gas supply cock is open (handle is
parallel to gas pipe) and that gas is being
supplied to the building.
b.
Position of gas valve knob. See the "Opera-
tion" section of this manual.
c.
Electric power supply. Check main circuit
breaker or fuse and confirm that power is be-
ing supplied to the building.
d.
That there is water in the generator. If not,
see "Symptoms: Water does not enter
generator."
e.
Voltage at gas valve. If not correct, inspect
wiring.*
f.
Pressure switch. If set too low. reset. If con-
tinuity check reveals a defect replace. (Ref.
23).*
Main burner will not light.
g.
Gas valve and replace if defective. (Ref. 10).*
a.
Position of gas valve knob. See "Operation"
section or this manual.
b.
Pressure gauge. Shut down generator and
relieve all pressure. If gauge does not return
to zero, replace it. (Ref. 1).'
c. Air vent. and replace if defective (Ref. 4).*
Generator fails to build up pressure when water
level is proper.
d.
For insufficient flames or inadequate gas sup-
ply. Adjust gas flow. (Ref, 10)*
a.
Valve in sight gauge assembly. Make sure it
is open.
a.
Pressure gauge. Shut down generator and
relieve all pressure. If the gauge does not
return to zero. replace it. (Ref. 1)'
b.
Pressure switch. If set too high, adjust. If
defective, replace. (Ref 23).*
c.
That gas valve cuts off gas supply when
demands of pressure switch have been met.
Water level in gauge glass jumps up and
down,
Generator fails to cut off after reaching
operating pressure.
If not, replace gas valve. (Per. 10).*
12
SYMPTOM. WHAT TO CHECK