Gardner Denver APEXVS7-11A, Руководство по эксплуатации и обслуживанию

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13-25-603 Page 66
SYMPTOM POSSIBLE CAUSE REMEDY
Compressor
does not
unload (or
load) 1. Improperly adjusted controller 1. Refer to Control Manual 13-17-600 and
adjust control.
2. Feed 3-way solenoid valve
malfunction 2. Repair, clean or replace valve.
3. Inlet valve stuck 3. Inspect and replace valve.
4. Blow down valve malfunction 4. Repair, clean or replace valve.
Compressor
cycles from
load to unload
excessively 1. Insufficient receiver capacity 1. Increase receiver size
2.
Restriction in service piping
2.
Inspect and clean service piping.
3. Restriction in control tubing 3. Inspect and clean control tubing.
Compressor
starts too
slowly 1. Acceleration time in VFD set too
long 1. Contact your Gardner Denver distributor.
2.
Minimum Pressure/Check Valve
is leaking 2.
Repair or replace.
Compressor is
low on delivery
and pressure 1, Improperly adjusted control 1. Refer to Control Manual 13-17-600 and
adjust control.
2. Restricted air filter 2. Clean or replace filter element.
3. Inlet valve not fully open 3. Inspect, adjust or replace feed solenoid
valve and/or pressure regulator.
4. Minimum pressure valve stuck
closed 4. Inspect service or replace valve.
5. Blowdown valve leaking 5. Inspect or replace solenoid valve. Ensure
local ambient temperature has not
exceeded 113
°
F. limit.
6. Air demand exceeds supply 6. Make sure air demand matches
compressor specifications for flow and
pressure.