Triggering Of The Low-Pressure Relay - Comprag Rdx Serie Bedienungsanleitung

ALARMANZEIGE
A11 low pressure switch
triggered
A21 Signal interruption
(OPE) or short circuit
(SHr) of the Evaporator
temperature sensor
for more than 5 sec.
A22 Signal interruption
(OPE) or short circuit
(SHr) of the condenser
temperature sensor
for more than 5 sec.
A31 Exceeding the dew
point temperature
(F11) for 5 min.
A32 Exceeding the
condensation
temperature (F12)

4.4 Triggering of the low-pressure relay

The low pressure relay is mainly used to protect the refrigerant compressor. In the event of a
refrigerant leak, the low pressure switch is triggered and the compressor is switched off.
22
refrigerant leak
-
1. Refrigerant leak.
2. Heat overheating
of the system.
3. Due to too
high ambient
temperatures
or incoming
compressed air, etc.
3. The fan has
failed.
4. The condenser is
clogged.
Further use of the refrigeration dryer is only possible once the
fault has been rectified. Please contact our service center or an
appropriate specialist.
1. Fix the leak Manual reset by
2. Refill the pressing any button
refrigerant and restoring
normal pressure
values
Eliminate the cause Automatic reset
after elimination of
interruption or short
circuit
1. Fix the leak. Manual reset by
Recharge the pressing any key
refrigerant. and restoring
2. Install normal values
aftercooler. Reduce
Manual reset
theheat load.
by pressing any
3. Replace the fan.
key (when the
4. Clean the
temperature falls
condenser.
below (F12)) and
restore the normal
values
Version 2.7