Gardner Denver PUREAIR EWC99C, Руководство по эксплуатации и обслуживанию

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ADVISORY TROUBLESHOOTING GUIDE
All advisories are indicated on the keypad by a yellow indicator in the Status area, and one of the
following messages alternating with the normal lower line display. Perform service or maintenance as
indicated, the clear the advisory as instructed in Section 4.
Message Action Needed
CHNG AIR FILTER Excessive vacuum has been detected after the air filter, indicating it has
become full. Change the air filter to ensure maximum air delivery.
CHNG H
2
O FILTER The differential pressure across the water filter has risen to over 30 psid.
Change the filter to ensure an adequate flow of coolant.
RELUBE The unit has been operated for the programmed number of hours since the
last lubricant change or addition. Change or add lubricant as indicated in the
lubrication instructions to ensure lubricant quality.
HIGH DISCH TEMP
The temperature was greater than 180
°
F (82
°
C) at the airend discharge.
Ensure that the compressor receives adequate cooling air or water, and that
the coolers are not plugged.
LOW AMB TEMP
The temperature was less than 40
°
F (4
°
C) at the airend discharge. Ensure
that the compressor is located in a room kept above freezing.
SHUTDOWN TROUBLESHOOTING GUIDE
All shutdowns are indicated on the keypad by the word “SHUTDOWN” on the top line of the display, and
one of the following messages on the lower line of the display. The red indicator in the Status area will be
steadily lit while the conditions exist, and will flash after the condition has been corrected. Perform
service as indicated. Press the [STOP/RESET] key to clear the shutdown.
Message Action Needed
BAD FLOAT
SWITCH 120 volts is present at both terminal 6 and 7 of the terminal strip. This
indicates a likely wiring error to the float switch; check and correct. It may also
indicate a short within the switch itself.
CHECK CN7 All inputs at connector 7 of the controller are off. The most common cause for
this is that the connector plug has been pulled out. Plug the connector back in
firmly.
CHECK CN5 120 volts has been removed from ALL inputs to connector 5 of the controller.
The most common cause for this is that the connector plug has been pulled
out. Plug the connector back in firmly.
CHNG H
2
O FILTER The differential pressure across the water filter has risen to over 40 psid.
Change the filter to ensure an adequate flow of coolant.
EMERGENCY STOP The Emergency Stop button has been pressed. Pull it back out to its normal
position. If the button has not been pressed, check that the contact block is
firmly mounted in the right or left (not center) position of the operator. Check
for loose connections which would remove 120 volts from connector 5-8 of the
controller.