Beko DRYPOINT AC Series Installation And Operating Manual page 48

Installation and operating manual
Symptom
Shuttle valves (9) fail to switch
(see P&ID diagrams on page 16)
Pressure gauge indicates backup
pressure during regeneration
During absorption, the pressure gauge
indicates a pressure that is too low,
and the plant releases air during the
pressure build-up phase
Dew point too high
48
Possible cause
Solenoid valve (5) failed to open
Shuttle valve (9) is defective
Control unit defective
Silencer blocked
Flow distributor in adsorber blocked
Solenoid valve (5) is not tight or fails to
close properly
Shuttle valve (9) is not tight or fails to
switch properly
Air does not meet inlet conditions
Regeneration gas volume too small
Condensate enters the adsorption dryer
DRYPOINT
Check solenoid valve; replace valve, if
necessary
Shut down the plant (see "9. Shutting
down plant") and depressurise it (see
"9.1. Depressurising plant").
Check shuttle valve; replace defective
components
Shut down the plant (see "9. Shutting
down plant") and depressurise it (see
"9.1. Depressurising plant").
Check control unit; replace, if necessary
Disassemble silencer; clean and
replace, if necessary
Shut down the plant (see "9. Shutting
down plant") and depressurise it (see
"9.1. Depressurising plant").
Contact customer service department
Check solenoid valve; replace valve, if
necessary
Check shuttle valve; replace defective
components
Shut down the plant (see "9. Shutting
down plant") and depressurise it (see
"9.1. Depressurising plant").
Check medium throughput rate,
pressure and temperature; readjust, if
necessary
Contact customer service department
Check prefilter and condensate drain
at prefilter; replace filter element or
condensate drain, if necessary
Shut down the plant (see "9. Shutting
down plant") and depressurise it (see
"9.1. Depressurising plant").
AC 410 – 495 | DRYPOINT
®
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Remedy
AC 410 – 495 MS
®