Sullair LS-10 25HP Operators Manual And Parts Lists page 45

atically analyzed before undertaking any repair or
component replacement procedures.
A detailed visual inspection is worth performing for
almost any problems which may prevent unneces-
sary damage to the compressor. Always remember
to:
a. Check for loose wiring.
TROUBLESHOOTING -- SUPERVISOR II
SYMPTOM (DISPLAY)
T1 HI Message
T1 FAIL
P1 HI Message
P1, P2, P3 FAIL
P3 LOW
SEP MNTN Message
PROBABLE CAUSE
Discharge Temperature Exceeded
225_F (107_C) for Pre--- Alarm
Discharge Temperature Exceeded
235_F (113_C) for Shutdown
Ambient Temperature Exceeded
105_F (41_C)
Fluid Level in Sump is Too Low
Thermal Valve Malfunctioned
Cooler Fins are Dirty (Air--- cooled only)
Water Flow is Low (Water--- cooled
Packages Only)
Water Temperature is High (Water---
Cooled Packages Only)
Cooler is Plugged (Water--- Cooled
Packages Only)
Temperature RTD Malfunction
Discharge Pressure Exceeded
Shutdown Level Because:
P1 MAX--- 3psi (0.2 Bar) Exceeded
for Pre--- Alarm
P1 MAX Exceeded for Shutdown
Unloading Device (i.e., Blowdown
Valve) Failed to Operate
Pressure Regulator Adjusted Incorrectly
Solenoid Valve Failed
to Operate
Control Air Signal Leaks
Control Air Signal Filter Clogged
Pressure Transducer Malfunction
Oil Pressure Falls Below 10 psig (0.7 bar)
or Less than 1/2 of P1 while Compressor
is Running Because:
Oil Filter Clogged
Sump Oil Level Too Low
Plugged Separator
P1 > 10 psi (0.7 Bar)
n
MAINTENANCE
b. Check for damaged piping.
c. 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 rec-
ommended check, consult your nearest Sullair rep-
resentative or the Sullair Corporation factory.
Improve local ventilation (i.e.,
remote intake of process and/or
cooling air).
Check/correct fluid level.
Check/replace thermal valve.
Clean cooler fins.
Check cooling water supply (i.e.,
closed valves).
Increase water flow, lower water
temperature.
Clean tubes and/or shell --- if tube
plugging persists, provide cleaner
water.
Check connections from RTD.
If connection is good, replace RTD.
Check operation of unloading device.
Check operation of pressure regulator.
Check operation of solenoid valve.
Check tubework feeding control
signal for leaks.
Service filter assembly.
Check connections from transducer.
If connections are good, replace transducer.
Replace filter element.
Replenish oil level.
Replace separator element.
Check P1 & P2 pressure transducers.
Section 7
REMEDY
39