Sullair LS-25S, Руководство оператора и список запасных частей

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Section 6
MAINTENANCE
39
TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE REMEDY
COMPRESSOR WILL NOT START Main Disconnect Switch Open Close switch.
Line Fuse Blown Replace fuse.
Control Transformer Fuse Blown Replace fuse.
Motor Starter Overloads Tripped Reset. Should trouble persist, check
whether motor starter contacts are
functioning properly.
Low Incoming Line Voltage Check voltage. Should voltage check low,
consult power company.
Supervisor Panel Fuse is Blown Replace fuse.
Replace Supervisor controller if no display
or erratic display.
COMPRESSOR SHUTS DOWN
WITH AIR DEMAND PRESENT Loss of Control Voltage Reset. If trouble persists, check that line
pressure does not exceed maximum
operating pressure of the compressor
(specified on nameplate).
Low Incoming Voltage Consult power company. The Sullair
Supervisor will provide indication of most
maintenance problems if control power has
not been lost. Shutdowns will occur upon a
faulty condition or a bad sender condition.
Excessive Operating Pressure Check maximum P2 pressure setting.
“High Press P1” display; Max P1 pressure
may be set too low. Consult factory for
recalibration.
Defective solenoid valve; solenoid valve
should cause control lever to move to
unload stop when the pressure switch
contacts open. Repair if defective.
Defective blowdown valve; blowdown valve
should exhaust sump pressure to 40 to 50
psig (2.8 bar to 3.4 bar) when maximum
operating pressure is reached. Repair if
defective.
Open or shorted P1, P2, P3 or P4 sender
message; replace sender indicated.
“High Temp T1“ or “T3” Message Cooling water temperature too high;
Displayed increase water flow (water---cooled only).
Cooling water flow insufficient; check water
lines and valves (water---cooled only).
Cooler plugged; clean tubes. If plugging
persists, install water conditioner
(water---cooled only).
Cooling air flow restricted; clean cooler and
check for proper ventilation.
Ambient temperature is too high; provide
sufficient ventilation.
Low fluid level; add fluid.
Clogged filter; change the fluid filter
element as indicated by Supervisor control.
Thermal valve not functioning properly;
replace element (air---cooled only).
Water flow regulating valve not functioning
properly; change (water---cooled only).
Open or shorted T1 or T2 sender; check for
a short or open circuit to probe and
correct wiring.