Section 8
TROUBLESHOOTING
38
8.2 TROUBLESHOOTING (CONTINUED)
SYMPTOM/MESSAGE
PROBABLE CAUSE
REMEDY
P3 LO (continued)
Oil Pressure Falls Below 25 psig
(1.7 bar) While Package is Running
Because:
Oil Temperature Too Low
Check state of globe valve feeding
oil cooler. In cold ambient envi---
ronments below 40
_
F (4
_
C) sump
heating may be required.
Sump Oil Level Too Low
Replenish oil level.
Sump Strainer Clogged
Refer to Section 7.7.5 for oil sump strainer
maintenance.
LO P1
P3 and/or dP Transducer at Fault
Check connection from
transducer. If adequate, replace
transducer.
T1 HI
LP Inlet Air Temperature Above
Maintain inlet air temperature below
115
_
F (46
_
C)
115
_
F (46
_
C).
High Interstage Pressure (Loaded)
Insufficient oil flow to jackets.
Air flow to intercooler.
Defective HP stage.
Cooling Fan Motor Starter Overloads
Reset after heater elements cool
tripped down. Should trouble persist,
check whether motor starter
contacts are functioning
properly.
Temperature Transducer Failure
Check connections from transducer
If adequate, replace transducer.
Blowdown Valve Failed to Open
Refer to Component Manual for valve
or Operated Sluggishly
maintenance.
T2 HI
Intercooler Core Fouled
Clean finning.
Discharge Check Valve Leaking
Refer to compressor’s Operators Manual
During Unloaded Operation
for check valve maintenance.
Inlet Throttling Valve Not Fully Open
See inlet valve adjustment.
During Loaded Operation
Low oil pressure defective control
solenoid valve.
Inlet Air Filter Clogged
Refer to compressor’s Operators
Manual
for filter maintenance.
Line Pressure is Too High
Reset Supervisor unload pressure.
Temperature Transducer Failure
Check connection from trans---
ducer. If adequate, replace
transducer.
Blowdown Valve Failed to Open
Refer to Component Manual for valve
or Operated Sluggishly
maintenance.
P1 HI
Defective HP Stage
Consult Sullair Service Department.
Pressure Transducer Failure
Check connection from trans---
ducer. If adequate replace
transducer.
P2 HI
Blowdown Valve Failed to Open
Refer to Component Manual for valve
maintenance.
Limit Switch Controlling Blowdown
Check actuation and butterfly disc
Valve Failed to Operate
See Section 7.7 for blowdown
valve maintenance.
Control Air Filter Clogged
See Section 7.7 for control filter
maintenance.
Summary of Contents for DR-13 Series
Page 6: ...NOTES ...
Page 14: ...8 NOTES ...
Page 18: ...Section 4 COMPRESSOR SYSTEMS 12 Figure 4 5 Piping and Instrumentation Diagram Air cooled ...
Page 21: ...Section 5 SUPERVISOR II 15 Figure 5 1 Supervisor II Panel ...
Page 28: ...22 NOTES ...
Page 32: ...26 NOTES ...
Page 42: ...Section 7 MAINTENANCE 36 Table 1 Installation Data ...
Page 46: ...40 NOTES ...
Page 48: ...Section 9 ILLUSTRATIONS AND PARTS LIST 42 9 3 COMPRESSOR MOTOR AND FRAME ...
Page 50: ...Section 9 ILLUSTRATIONS AND PARTS LIST 44 9 4 AIR INLET SYSTEM ...
Page 52: ...Section 9 ILLUSTRATIONS AND PARTS LIST 46 9 5 COOLER ASSEMBLY ...
Page 54: ...Section 9 ILLUSTRATIONS AND PARTS LIST 48 9 6 LP HOT LP COLD ...
Page 56: ...Section 9 ILLUSTRATIONS AND PARTS LIST 50 9 7 HP DISCHARGE ...
Page 58: ...Section 9 ILLUSTRATIONS AND PARTS LIST 52 9 8 LUBE SYSTEM ...
Page 60: ...Section 9 ILLUSTRATIONS AND PARTS LIST 54 9 9 ELECTRICAL BOX ...
Page 62: ...Section 9 ILLUSTRATIONS AND PARTS LIST 56 9 10 CONTROL SYSTEM CONDENSATE DRAIN ...
Page 64: ...Section 9 ILLUSTRATIONS AND PARTS LIST 58 9 11 CANOPY ...
Page 66: ...Section 9 ILLUSTRATIONS AND PARTS LIST 60 9 12 DECALS ...
Page 68: ...Section 9 ILLUSTRATIONS AND PARTS LIST 62 9 12 DECALS ...
Page 70: ...Section 9 ILLUSTRATIONS AND PARTS LIST 64 9 12 DECALS ...
Page 72: ...Section 9 ILLUSTRATIONS AND PARTS LIST 66 9 13 DECAL LOCATIONS ...
Page 74: ...Section 9 ILLUSTRATIONS AND PARTS LIST 68 9 13 DECAL LOCATIONS ...
Page 76: ...Section 9 ILLUSTRATIONS AND PARTS LIST 70 9 13 DECAL LOCATIONS ...
Page 78: ...Section 9 ILLUSTRATIONS AND PARTS LIST 72 9 14 WIRING DIAGRAM ...
Page 79: ...NOTES ...