Troubleshooting Introduction; (Compressor); Troubleshooting - Sullair ES-8 Operator's Manual And Parts List

Section 9
COMPRESSOR MAINTENANCE
AND TROUBLESHOOTING
Figure 9 ---5 Inlet Control Valve
* Repair Kit P/N 02250050---614
Before doing compressor maintenance, discon-
nect compressor from power source and lock out
power source. Isolate compressor from line pres-
sure by closing recommended discharge shut---
off valve and releasing all internal pressure from
compressor.
Assure that line pressure gauge on compressor
indicates "ZERO" pressure before any work is
done. Failure to comply can cause injury.
1. Remove the two (2) rear access panels which
cover the inlet valve assembly.
2. Identify and tag the plastic lines connected to
the blowdown valve and disconnect.
3. Remove the three (3) capscrews from the inlet
valve cover.
9.8 TROUBLESHOOTING -- COMPRESSOR
SYMPTOM
T1 HI Message
34
*
*
WARNING
!
WARNING
!
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
4. Remove cover (with blowdown valve attached)
and o---rings.
5. Remove piston, piston spring, check spring and
valve stem.
6. Inspect and clean all parts.
7. Assemble valve stem, check spring, piston
spring and piston into inlet valve housing.
8. Lubricate new o---rings and install the inner and
outer o---rings onto cover.
9. Position cover in inlet valve housing and install
capscrews. Tighten capscrews to 6 ft. ---lbs.
(8.1Nm).
10. Reconnect the plastic lines to the appropriate
fittings on the valve.
11. Assemble two (2) rear access panels on the
compressor.
12. Start compressor and check for leaks.

9.7 TROUBLESHOOTING INTRODUCTION

(COMPRESSOR)

The information contained in the Troubleshooting
chart is based upon both the actual applied situa-
tions 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 the trouble should be systemati-
cally 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.
b. Check for damaged piping.
c. Check for parts damaged by heat or an electrical
hort circuit, usually apparent by discoloration or
a burnt odor.
Should your problem persist after making the rec-
ommended check, consult your nearest Sullair
representative 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.
REMEDY