73
DBP BLOWER PURGE HEATED DRYER
Section 6
TROUBLESHOOTING
Symptom
Probable Cause
Remedy
High humidity alarm (with
optional dew point monitor)
The regeneration of the desiccant
beds is insufficient.
Reset the alarm with the “Alarm Reset”
push button. Verify the heating and cooling
operations by observing regenerations. Are
the regeneration temperatures in
accordance with those listed in
Is the regeneration blower motor
operational?
The dewpoint probe service valves
are closed.
Open the probe service valves.
Loss of power alarm
The control circuit fuse has blown.
Check the fuse and replace if necessary.
The PLC has failed or is in an
alarm condition.
Check the PLC to verify if any outputs are
“on” or if the PLC alarm LED is on. Replace
the PLC if necessary.
The system incoming power has
been lost.
Check the incoming power and restore the
supply.
Blower overload alarm
The motor overload has operated.
Check the motor overload to see if it is
defective. Check the operating conditions to
see if the motor is operating overloaded as
a result of a problem with the blower or
motor bearing, etc.
Vessel #1 De-pressurization
failure
The depressurization valve did not
open.
Check the solenoid valves for correct
operation. Check the valve actuator for
correct operation.
Vessel did not depressurize.
Check if the depressurization muffler is
plugged.
Vessel depressurized but alarm is
on.
Check pressure switch for correct
operation.
Vessel #2 De-pressurization
failure
The depressurization valve did not
open.
Check the solenoid valve for correct
operation. Check the valve actuator for
correct operation.
Vessel did not depressurize.
Check if the depressurization muffle is
plugged.
Vessel depressurized but alarm is
on.
Check pressure switch for correct
operation.
Vessel #1 Re-pressurization
failure
The repressurization valve did not
open.
Check the air actuated ball valve for correct
operation. Check the valve actuator for
correct operation and check the pilot
solenoid valve.
Vessel re-pressurized but the
alarm is on.
Check pressure switch PSH-1 for correct
operation.
Summary of Contents for 1000-DBP
Page 5: ...TABLE OF CONTENTS SECTION 9 SPARE PARTS LIST 80 9 1 SPARE PARTS LIST ...
Page 6: ...TABLE OF CONTENTS ...
Page 8: ...8 NOTES ...
Page 14: ...14 NOTES ...
Page 18: ...18 NOTES ...
Page 20: ...20 NOTES ...
Page 24: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 24 5 9 ID DBP 500 02250195 346 ...
Page 26: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 26 5 10 ID DBP 650 02250195 347 ...
Page 28: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 28 5 11 ID DBP 800 1000 02250195 348 ...
Page 30: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 30 5 12 ID DBP 1250 1500 02250195 349 ...
Page 32: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 32 5 13 ID DBP 2000 02250195 350 ...
Page 34: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 34 5 14 ID DBP 2500 3000 02250195 351 ...
Page 36: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 36 5 15 P I 02250195 361 ...
Page 38: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 38 5 16 WD DBP 500 02250195 378 ...
Page 40: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 40 5 17 WD DBP 650 02250195 379 ...
Page 42: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 42 5 18 WD DBP 800 02250195 380 ...
Page 44: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 44 5 19 WD DBP 1000 02250195 381 ...
Page 46: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 46 5 20 WD DBP 1250 02250195 382 ...
Page 48: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 48 5 21 WD DBP 1500 02250195 383 ...
Page 50: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 50 5 22 WD DBP 2000 02250195 384 ...
Page 52: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 52 5 23 WD DBP 2500 02250195 385 ...
Page 54: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 54 5 24 WD DBP 3000 02250195 386 ...
Page 56: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 56 5 25 WD DBP 3500 02250195 387 ...
Page 58: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 58 5 26 WD DBP 4000 02250195 388 ...
Page 60: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 60 5 27 WD DBP 5000 02250195 389 ...
Page 62: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 62 5 28 WD DBP 6000 02250195 390 ...
Page 64: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 64 5 29 WD DBP 7000 02250195 391 ...
Page 66: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 66 5 30 WD DBP 8000 02250195 392 ...
Page 68: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 68 5 31 WD DBP 9000 02250195 393 ...
Page 70: ...DBP BLOWER PURGE HEATED DRYER SECTION 5 70 5 32 WD DBP 10000 02250195 394 ...
Page 72: ...72 NOTES ...
Page 76: ...76 NOTES ...
Page 78: ...78 NOTES ...
Page 79: ...Section 9 79 DBP BLOWER PURGE HEATED DRYER SPARE PARTS LIST ...
Page 83: ...NOTES 83 ...