Section 8
TROUBLESHOOTING
33
8.1 INTRODUCTION
The foregoing information has been com-
piled from operational experience with your
package. It identifies symptoms and diagno-
sis of SEVERAL probable difficulties, but
NOT ALL of those possible.
The systematic collection of operational data
cannot be over--emphasized, as it may give
evidence of the presence (or not) of a fault
before it turns into a serious breakdown -- for
example, the vibrations signature increase of
a damaged bearing, or the efficiency de-
crease of a dirty heat exchanger.
A detailed visual inspection is worth perform-
ing for almost all problems and may avoid un-
necessary additional damage to the com-
pressor. Always remember to:
1. Check for loose wiring.
2. Check for damaged piping.
3. Check for parts damaged by heat or an
electrical short circuit, usually apparent by
discoloration or a burnt odor.
Should your problem persist after making the
recommended check, consult your nearest
Sullair representative or the Sullair Corpora-
tion factory toll free at 1--800--SULLAIR.
8.2 TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE REMEDY
T1 HI Message Discharge Temperature Exceeded
225
_
F (107
_
C) for Pre--Alarm
Discharge Temperature Exceeded
235
_
F(113
_
C) for Shutdown
Ambient Temperature Exceeded Improve local ventilation (i.e.,
105
_
F(41
_
C) remote intake of process and/or
cooling air.
Fluid Level in Sump is Too Low Check/correct fluid level.
Thermal Valve Malfunctioned Check/replace thermal valve.
Cooler Fins are Dirty Clean cooler fins.
Water Flow is Low (water--cooled Check cooling water supply (i.e.,
packages only) closed valves).
Water Temperature is High (water-- Increase water flow , lower water
cooled packages only) temperature.
Cooler is Plugged (water--cooled Clean tubes and/or shell -- if tube
packages only) plugging persists, provide cleaner
water.
Temperature RTD Malfunction Check connections from RTD.
If adequate, replace RTD.
P1 HI Message P1 MAX -- 3psi (.2 bar) Exceeded for
Pre--Alarm
P1 MAX Exceeded for Shutdown
Discharge Pressure Exceeded
Shutdown Level Because:
Unloading Device (i.e., Blowdown Check operation of unloading device.
Valve, Inlet Poppet Valve, Optional
Spiral Valve) Failed to Operate
Pressure Regulator Maladjusted Check operation of pressure regulator .
Solenoid Valve Failed Check operation of solenoid valve.
to Operate
Control Air Signal Leaks Check tubework feeding control
signal for leaks.
Control Air Signal Filter Clogged Service filter assembly .
SEP MNTN Message Plugged Separator Replace separator elements.
dP1 > 10 psi (0.7 bar) Check P1 & P2 pressure transducers.
COMPRESSOR DOES NOT Air Demand Exceeds Supply Check air service lines for open
BUILD FULL DISCHARGE valves or leaks.
PRESSURE
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