10
List of the alarm codes
Shutting Down the Unit
Temporary shutdown
If the unit is to be taken out of operation for a longer pe-
riod of time, for example, over the winter, proceed as
follows:
1. Use the remote control to shut down all of the inner
units.
2. Switch off the internal regulation in the chiller (or the
remote control).
3. Have the percentage of glycol is checked by an
authorised company.
4. If only water was used in the hydraulic cycle and no
brine (water and antifreeze), this water must be
drained from system components in areas suscepti-
ble to frost during the period of non-operation. When
the unit is put back into operation, the amount of wa-
ter that has been drained must be refilled!
5. Check the inner units and the chiller for any visible
damage.
6. Clean the inner units and outer parts as described in
section 5 “Maintenance” and cover the chiller, if pos-
sible, with a plastic sheet to protect it from weather
conditions.
When the unit is put back into operation after a long pe-
riod of non-operation, it must first be checked for exter-
nal damage before operation.
Code
Alarm Type
AUTO
MANUAL
E00
Remote control defective (open contact)
E01
High pressure alarm Cycle 1
E02
Low pressure alarm Cycle 1
E03
Condenser overheating Cycle 1
E04
Condenser temperature too high
E05
Frost protection Cycle 1 activated
E06
Sensor defective ST 2 outgoing water Cycle 1
E07
Sensor defective ST 5 condenser Cycle 1
E21
High pressure alarm Cycle 1
E22
Lobe pressure alarm Cycle 1
E23
Condenser overheating Cycle 2
E24
Condenser temperature too high
E25
Frost protection Cycle 2 activated
E26
Sensor defective ST 3 outgoing water Cycle 2
E27
Sensor defective ST 6 condenser Cycle 2
E40
Sensor defective ST 1 incoming water
E41
Flow switch (differential pressure monitor) activated
E42
Hardware defective
The second parameter level can be
programmed to reset the alarms.
Enter the changed resets in the left-
hand column.
All settings made at the factory
have been pre-programmed to
AUTOMATIC.
Alarm Description
To protect the unit, the CH-DIN regulation and the C2-
DIN additional regulation use sensors to check the unit’s
safety mechanisms for temperature, pressure, internal
configuration, etc.
The value display of the CH-DIN regulation indicates the
alarm code by displaying the letter E followed by two
numbers. The cause of the alarm can be determined by
finding the code in the table below. The C2-DIN addi-
tional module also displays the alarm with a correspond-
ing LED.
On the second parameter level, resetting the alarm can
be programmed after the malfunction has been fixed
The alarms are pre-programmed to automatically reset
at the factory.
If the alarms have been reprogrammed to be reset
manually, the alarm must be reset after the problem has
been fixed by switching the CH-DIN and then on again
with the ON/OFF/RESET button (see programming ex-
ample below).
Resetting the alarms after the problem has been fixed
The alarms can be reset by following the programming process below. As an example, the compressor switched off
due to a malfunction caused by dirt in the condenser fins.
3
1
2
0
Overheating of the
condenser as a
result of dirt in the
fins
1
2
E
Alarm
Temperature of the
condenser is low-
ered and the fins of
the heat exchanger
are cleaned
ON/OFF
RESET
Alarm
ON/OFF
RESET
Programming process
Permanent shutdown
For environmental safety reasons, the chiller may only
be disassembled by authorised service centres.
REMKO GmbH & Co. KG or your contract partner would
be happy to provide you with the name of a service cen-
tre in your area.
