Troubleshooting- Supervisor; Troubleshooting Guide- Supervisor - Sullair LS-100L Operator's Manual

Section 7
MAINTENANCE
7.11 TROUBLESHOOTING- SUPERVISOR II
The information contained in the Supervisor II
Troubleshooting chart is based upon both the actu-
al applied situations and extensive testing at the
factory. It contains symptoms and usual causes for
the described problems. However, DO NOT
assume that these are the only problems that may
occur. All available data concerning a problem
should be systematically analyzed before undertak-
ing any repair or component replacement proce-
dures.
A detailed visual inspection is worth performing for
7.12 TROUBLESHOOTING GUIDE- SUPERVISOR II
SYMPTOM
T1 HI Message
T1 FAIL
P1 HI Message
46
PROBABLE CAUSE
Discharge Temperature Exceeded
225ºF (107ºC) for Pre-Alarm
Discharge Temperature Exceeded
235ºF (113ºC) for Shutdown
Ambient Temperature Exceeded
105ºF (41ºC)
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
almost any problems which may prevent unneces-
sary damage to the compressor. Always remember
to:
a. Check for loose wiring.
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.
REMEDY
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.