25
● The inlet air is too hot. Establish normal operating conditions.
● The inlet pressure is too low. Establ
ish normal operating conditions.
● The flow of inlet air is higher than the flow of the dryer
- reduce flow - establish
normal operating conditions.
● The condenser is dirty
- clean it.
● The condenser fan does not work.
● Condensate has not been drained f
rom the dryer.
● The hot gas bypass valve is not properly set up
- contact an engineer in the field
of refrigeration.
● Leakage has occurred in the cooling circuit
- contact a specialist in the field of
refrigeration.
The dewpoint is too
low
● Fan always
on - PV pressure switch is defective - replace it.
● Ambient temperature is too low
- establish nominal operating conditions.
● The hot gas bypass valve is not properly set up
- contact an engineer in the field
of refrigeration.
Excessive pressure
drop in the dryer
● Condensate has not been drained from the dryer.
● Dew point is too low
- the condensate is frozen and blocks the air flow.
● Check the dampening of the pipe connections.
.....................................................................................................
The condensate was
not drained from
the dryer
● Check the electrical installation.
● Dew point is too low
- the condensate is frozen and blocks the air flow.
● The compressed air pressure is too low and the
condensate is not removed -
establish normal operating conditions.
● The electronic condensate drain is not working properly.
The dryer
continuously drains
the condensate
● The electronic condensate separator is dirty.
There's water in the
pipeline.
●
The dryer does not start.
●
If it is installed
- Unprepared air flows through the bypass conduit - close the
bypass conduit.
● The dryer does not discharge condensate.
● Dew point is too high.
High compressor
outlet temperature
● Check which of the following caused the activation:
1. Overload heat - set normal operating conditions.
2. The temperature of the input air is too high - establish normal operating
conditions.
3. The ambient temperature is too high, or the ventilation of the room is too low
- ensure adequate ventilation.
4. The condenser is dirty.
5. The fan does not work.
6. The hot gas bypass valve is not properly set up - contact the engineer in the
field of refrigeration.
7. Coolant is leaking - consult with an engineer in the field of refrigeration.
- Reset the thermal switch by pressing the button on the thermal switch itself -
check the proper operation of the dryer.
- TS thermal switch is defective - replace it.
Содержание RDP Series
Страница 28: ...28 16 Maintenance notebooks MAINTENANCE TYPE DATE SIGNATURE NOTES First installation...
Страница 29: ...29...
Страница 30: ...30 17 Drawings of RDP refrigeration air dryers RDP 20 100...
Страница 31: ...31 RDP 140 235...
Страница 32: ...32 RDP 300 480...
Страница 33: ...33 RDP 600 950...
Страница 34: ...34 RDP 1150 1900...
Страница 35: ...35 RDP 2600...
Страница 36: ...36 16 Electro schemes of RDP refrigeration air dryer RDP 20 180...
Страница 37: ...37 RDP 235 600...
Страница 38: ...38 RDP 750 1900...
Страница 39: ...39 RDP 2600...