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13-25-629 v03 Page 68
SYMPTOM
POSSIBLE CAUSE
REMEDY
3.
Minimum pressure valve
stuck closed.
3.
Replace valve.
4.
Oil separator clogged.
4.
Replace.
5.
Condensate drain
solenoid valve is faulty.
5.
Inspect and replace.
6.
Leaks in the compressed
air system.
6.
Check for leaks, fix any leaks
found.
7.
V-Belts broken.
7.
Replace complete set.
8.
V-Belts slipping.
8.a
8.b
Inspect and clean belt.
Check that motor pivots freely
on bracket shaft.
9
Pressure limits incorrectly
set.
9
Check/correct pressure limits
in the Controller.
10
Aftercooler is frozen
10.
Thaw out. This machine
cannot operate in temperatures
below 32
F (0
C).
High discharge air
temperature
1.
Dirty or clogged cooler
core or fins.
1.
Clean cooler.
2.
Insufficient cooling air
flow.
2.
Provide unrestricted supply of
cooling air.
3.
Clogged oil filter or cooler
(interior).
3.
Replace filter or clean cooler.
4.
Low compressor oil level.
4.
Add oil to proper level.
5.
Faulty temperature
sensor.
5.
Replace sensor.
6.
Thermostatic mixing valve
stuck open.
6.
Inspect and/or replace valve.
Excessive oil
consumption
1.
Oil carryover through
lines.
1.
See “Oil Carryover”, in this
section.
2.
Oil leaks at all fittings and
gaskets.
2.
Tighten or replace fittings or
gaskets.
3.
Shaft seal leaking.
3.a
Inspect scavenge orifice
Summary of Contents for L4-5C
Page 27: ...13 25 629 v03 Page 27 FIGURE 4 5 WIRING DIAGRAM 380V 60 Hz 303ECA546 B Ref Drawing Page 1 of 3...
Page 28: ...13 25 629 v03 Page 28 FIGURE 4 6 WIRING DIAGRAM 380V 60 Hz 303ECA546 B Ref Drawing Page 2 of 3...
Page 29: ...13 25 629 v03 Page 29 FIGURE 4 7 WIRING DIAGRAM 380V 60 Hz 303ECA546 B Ref Drawing Page 3 of 3...
Page 30: ...13 25 629 v03 Page 30 FIGURE 4 8 WIRING DIAGRAM 575V 305ECA546 A Ref Drawing Page 1 of 3...
Page 31: ...13 25 629 v03 Page 31 FIGURE 4 9 WIRING DIAGRAM 575V 305ECA546 A Ref Drawing Page 2 of 3...
Page 32: ...13 25 629 v03 Page 32 FIGURE 4 10 WIRING DIAGRAM 575V 305ECA546 A Ref Drawing Page 3 of 3...
Page 61: ...13 25 629 v03 Page 61 Figure 9 5 Compressor Module Hardware...