Sullair Supervisor II User Manual

Section 5
MAINTENANCE AND TROUBLESHOOTING
23
5.4 B --- TROUBLESH OOTING GUIDE --- LS --- 12; LS --- 16; LS --- 20; LS --- 20S; LS --- 25 a nd EU ROPE
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) p lugging 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, Sullicon Actuator, 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.
COMPRES SOR DOES NOT
BUILD FULL DISCHARGE
PRES SURE Air Demand Exceeds Supply Check air service lines for open
valves or leaks.
Inlet Air Filter Clogged Check for maintenance message
on Supervisor display. Inspect and/or
change element.
Inlet Valve Not Fully Open Check actuation and butterfly disc
position.
Pressure Sensor and/or Connections Check connections from trans---
at Fault ducer. If adequate, replace trans---
ducer.
OIL MNTN Message Plugged Oil Filter Replace oil filter.
Oil Differential Check oil differential switch, switch open or if
dP2 > 20 psi (1.38 bar) machine has P3 & P4 pressure transducer,
check transducers.

Sullair Supervisor II Specifications

General

Brand	Sullair
Model	Supervisor II
Category	Controller
Language	English