Section 7
TROUBLESHOOTING
41
COMPRESSOR WILL NOT
START
COMPRESSOR SHUTS DOWN
Main Disconnect Switch Open
Line Fuse Blown
Control Transformer Fuse Blown
Motor Starter Overloads Tripped
Low Incoming Line Voltage
Loss of Control Voltage
Low Incoming Voltage
Excessive Operating Pressure
P1 High Pressure Shutdown
Parameter is Adjusted Too Low
High Discharge Temperature
Close switch.
Replace fuse.
Replace fuse.
Reset. Should trouble persist, check whether
motor starter contacts are functioning proper-
ly.
Check voltage. Should voltage check low,
consult power company.
Reset. If trouble persists, check that line
pressure does not exceed maximum operat-
ing pressure of the compressor (specified on
nameplate).
Consult power company.
Separator requires maintenance; check dP1
under full load conditions.
Defective blowdown solenoid valve; repair if
defective (kit available).
Defective blowdown valve; blowdown valve
should exhaust sump pressure to the atmos-
phere when maximum operating pressure is
reached. Repair or replace as necessary (kit
available).
Readjust MAX P1 setpoint appropriately.
Cooling water temperature too high; increase
water flow (water-cooled).
Cooling water flow insufficient; check water
lines and valves. (water-cooled).
7.2 TROUBLESHOOTING GUIDE
SYMPTOM
PROBABLE CAUSE
REMEDY
7.1 TROUBLESHOOTING
The information contained in the Troubleshooting
chart is based upon both actual applied situations
and extensive testing at the factory. It contains
symptoms and usual causes for the described prob-
lems. However,
DO NOT
assume that these are the
only problems that may occur. All available data
concerning the trouble should be systematically
analyzed before undertaking any repair or compo-
nent 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 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.
Summary of Contents for LS20TS
Page 6: ......
Page 20: ...Section 2 DESCRIPTION 14 Figure 2 4A Control System Diagram Functional Components ...
Page 21: ...Section 2 DESCRIPTION 15 Figure 2 4B Control System Diagram START ...
Page 22: ...Section 2 DESCRIPTION 16 Figure 2 4C Control System Diagram MODULATION ...
Page 23: ...Section 2 DESCRIPTION 17 Figure 2 4D Control System Diagram FULL LOAD ...
Page 24: ...Section 2 DESCRIPTION 18 Figure 2 4E Control System Diagram UNLOAD ...
Page 40: ...NOTES 34 ...
Page 50: ...NOTES 44 ...
Page 53: ...NOTES 47 ...
Page 56: ...Section 8 ILLUSTRATIONS AND PARTS LIST 50 02250135 237R01 8 4 AIR INLET SYSTEM ...
Page 58: ...Section 8 ILLUSTRATIONS AND PARTS LIST 52 02250135 237R01 8 4 AIR INLET SYSTEM ...
Page 72: ...Section 8 ILLUSTRATIONS AND PARTS LIST 66 02250138 950R01 8 9 DISCHARGE SYSTEM ...
Page 74: ...Section 8 ILLUSTRATIONS AND PARTS LIST 68 02250138 950R01 8 9 DISCHARGE SYSTEM ...
Page 76: ...Section 8 ILLUSTRATIONS AND PARTS LIST 70 02250138 950R01 8 9 DISCHARGE SYSTEM ...
Page 78: ...Section 8 ILLUSTRATIONS AND PARTS LIST 72 02250139 578R00 8 10 CONTROL START SYSTEM ...
Page 80: ...Section 8 ILLUSTRATIONS AND PARTS LIST 74 02250139 578R00 8 10 CONTROL START SYSTEM ...
Page 82: ...Section 8 ILLUSTRATIONS AND PARTS LIST 76 02250137 724R02 8 11 CONTROL PANEL ...
Page 84: ...Section 8 ILLUSTRATIONS AND PARTS LIST 78 8 12 ENCLOSURE AND ENCLOSURE DECALS ...
Page 86: ...Section 8 ILLUSTRATIONS AND PARTS LIST 80 8 13 DECAL GROUP ...
Page 88: ...Section 8 ILLUSTRATIONS AND PARTS LIST 82 8 13 DECAL GROUP ...
Page 90: ...Section 8 ILLUSTRATIONS AND PARTS LIST 84 8 13 DECAL GROUP ...
Page 92: ...Section 8 ILLUSTRATIONS AND PARTS LIST 86 8 14 DECAL LOCATIONS OPEN WATER COOLED ...
Page 94: ...Section 8 ILLUSTRATIONS AND PARTS LIST 88 8 15 DECAL LOCATIONS CONTROL BOX ...
Page 97: ...NOTES 91 ...