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13-11-607 Page 54
SYMPTOM
POSSIBLE CAUSE
REMEDY
Compressor is low on delivery
and pressure
1. Restricted air filter.
1. Clean or replace filter.
2. Sticking inlet valve.
2. Inspect and clean inlet
valve.
3. Unload pressure adjusted too
low.
3. Adjust the unload pressure.
See Section 4.
4. Discharge check valve
stuck closed.
4. Disassemble and clean
valve.
5. Subtractive valve is active.
5. Adjust subtractive valve to
start operating at 1 psi
above the desired full load
operating pressure. Clean
or replace if output is not
linear - 2.3 psi output per 1
psi input.
High discharge air temperature
1. Dirty or clogged cooler face.
1. Clean cooler.
2. Insufficient cooling air flow
2. Provide unrestricted supply
of cooling air.
3. Clogged water injection filter
or cooler (interior).
3. Replace filter or clean
cooler.
4. Reservoir water level low
4. See “Reservoir water level
low” details.
Reservoir water level low
1. Drain valve leaking
1. Inspect and clean or
replace.
2. RO producing none to low
water.
2. See RO Troubleshooting
details.
3. Condensate return strainer
and/or orifice plugged.
3. Inspect and clean.
Abnormal water volume found
in package discharge air
1.
Condensate return strainer
and/or orifice plugged.
1.
Inspect and clean.
NOTICE
Gardner Denver factory remanufactured replacement compressor airend units
are available from your authorized distributor, on an exchange basis, for all
rotary screw compressor units.
Summary of Contents for PUREAIR EWC99C
Page 7: ...13 11 607 Page 2 Figure 1 2 PACKAGE ILLUSTRATION 307EWC797 B Ref Drawing...
Page 8: ...13 11 607 Page 3 Figure 1 3 AIR WATER SCHEMATIC 308EWC797 F Ref Drawing...
Page 25: ...13 11 607 Page 20 Figure 4 2 FLOW CHART FOR SETUP PROGRAMMING 300EWC1255 Ref Drawing...
Page 38: ...13 11 607 Page 33 Figure 4 4 WIRING DIAGRAM FULL VOLTAGE 305EWC546 B Ref Drawing Page 1 of 2...
Page 39: ...13 11 607 Page 34 305EWC546 B Ref Drawing Page 2 of 2...
Page 41: ...13 11 607 Page 36 306EWC546 B Ref Drawing Page 2 of 2...