28
6.3 ALAr and LOg Menus
The activated alarms of the unit are displayed in the ALAr menu. More alarms
can be activated at the same time. The alarms are recorded in a permanent LOG
memory.
The last 10 recorded alarms are displayed in the LOg menu. The fol-
lowing table shows the alarm codes and description:
Code
Alarm description
Auto
Manual
Notes
ADC
microprocessor error
l
CPF
failure of HP transducer, off scale
l
EPF
failure of LP transducer, off scale
l
REF
refrigerant leak - low pressure
l
CPnc
failure of HP transducer, unchanged pressure
l
EPnc
failure of LP transducer, unchanged pressure
l
CFC1
failure of compressor 1
l
wrong rotation
CFC2
failure of compressor 2
l
wrong rotation
EWTH
failure of return water probe
l
short-circuit
EWTL
failure of return water probe
l
not connected
LWTC
no variation in the leaving water temperature
l
LWTH
failure of leaving water probe
l
short-circuit
LWTL
failure of leaving water probe
l
not connected
DISH
failure of compressor discharge temperature probe
l
short-circuit
DISL
failure of compressor discharge temperature probe
l
not connected
OATH
failure of air temperature probe
l
short-circuit
OATL
failure of air temperature probe
l
not connected
OC1H
failure of temperature probe - coil 1
l
short-circuit
OC1L
failure of temperature probe - coil 1
l
not connected
OC2H
failure of temperature probe - coil 2
l
short-circuit
OC2L
failure of temperature probe - coil 2
l
not connected
HPP
first high pressure protection
l
stop1 compressor
HP
high pressure protection from transducer
l
l
auto reset 3 times
HPC
high pressure protection - locked circuit
l
LP
low pressure protection
l
l
auto reset 3 times
DIS
excessive discharge temperature of compressors
l
LO
too low leaving water temperature
l
l
auto reset 3 times
HI
excessive entering water temperature
l
FS
electrical flow switch or water differential pressure switch
l
CF1
thermal protection, compressor 1
l
CF2
thermal protection, compressor 2
l
OF1
thermal protection, fans
l
PF
thermal protection, pump
l
LOu
low water volume
l
EEP
microprocessor error
l
JUMP
failure dip switch
l
not connected
ConF
wrong configuration
l
6 - AQL/AQH Control
Содержание AQC 40-75
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