Introduction - Sullair DR13 125H Operator's Manual And Parts List

8.1 INTRODUCTION

The following information has been compiled
from operational experience with your package.
It identifies symptoms and describes probable
causes for problems. However DO NOT assume
that these are the only problems that may occur.
The collection of operational data concerning
possible trouble should be analyzed to prevent
complete compressor breakdown. An example
of this would be the vibrations signature in-
crease of a damaged bearing or the efficiency
8.2 TROUBLESHOOTING
SYMPTOM/MESSAGE
COMPRESSOR WILL NOT START;
POWER LED OFF
MOTOR OL
T--- 1, T--- 2, T--- 3
T--- 4, T--- 5 FAIL
P--- 1, P--- 2, P--- 3
P--- 4 FAIL
E--- STOP
COOL FLT
COMPRESSOR SHUTS DOWN
WITH AIR DEMAND:
MOTOR OL
P2 LO
P3 LO
(I) Also check that the compressor---motor driveline rotates freely. In case of rotating resistance or rubbing, contact
Sullair Service Department.
PROBABLE CAUSE
Main Disconnect Switch Open
Line Fuse Blown
Control Transformer Fuse Blown
Motor Starter Overloads Tripped
Low Incoming Line Voltage
Temperature Transducer Failure
Pressure Transducer Failure
Emergency Switch Open
(Depressed)
Cooling Fan Motor Starter Overloads
Tripped
Motor Starter Overloads Tripped
Low Incoming Line Voltage
The Machine Ran at a Final Discharge
Pressure Below 50 psig (3.4 bar) for
five minutes
Oil Pressure Falls Below 25 psig
(1.7 bar) While Package is Running
Because:
Oil Pump Malfunctioned
Oil Filter Clogged
TROUBLESHOOTING
decrease of a dirty heat exchanger.
A detailed visual inspection should be per-
formed for all problems. Always remember to:
1. Check for loose wiring.
2. Check for damaged piping.
3. Check for parts damaged by heat or an electri-
cal short circuit, usually apparent by discolor-
ation or a burnt odor.
Should your problem persist after making the
recommended check, consult your nearest Sull-
air representative or the Sullair Corporation.
REMEDY
Close switch.
Replace fuse.
Replace fuse.
Reset after heater elements cool
down. Should trouble persist, check
whether motor starter contacts are
functioning properly.
Check voltage. Should voltage check
low, consult power company.
Check connections from
transducer. If adequate, replace
transducer.
Check connections from
transducer. If adequate, replace
transducer.
Close switch (pull).
Reset after heater elements cool
down. Should trouble persist, check
whether motor starter contacts are
functioning properly.
Reset after heater elements cool
down. Should trouble persist,
check whether motor starter contacts
are functioning properly.(I)
Check voltage. Should voltage
check low, consult power company.
Adjust valve downstream of package to
hold minimum 70 psig (4.8 bar) line
pressure.
Consult Sullair Service Dept.
Replace filter element.
Section 8
37