Emerson Dixell XC645D - Page 43

1592001830 XC645D GB r3.4 04.09.2017.docx XC645D 43/50
Code
Description
Cause
Action
Reset
P1
P1 probe
failure alarm
Probe failure or
out of range
 The
compressors
are activated
according to
the SPr or
PoPr
parameters.
Automatically as soon as the probe restarts working.
P2
P2 probe
failure alarm
Probe failure or
out of range
 The fans are
activated
according to
the FPr
parameters.
Automatically as soon as the probe restarts working.
P3
P3 probe
failure alarm
Probe 3 failure
or out of range
 The functions
related to the
third probe
are disabled.
Automatically as soon as the probe restarts working.
P4
P4 probe
failure alarm
Probe 4 failure
or out of range
 The functions
related to the
fourth probe
are disabled.
Automatically as soon as the probe restarts working.
EA1
EA2
EA3
EA4
Load safeties
alarm
Safeties
compressor/fan
input activation.
NOTE: with step
compressors 1
input for each
compressor has
to be used.
 the
correspondin
g load is
turned off.
(with step
compressors
all relays
referred to
the input are
disabled).
Recovery depends on ALMr parameter:
With ALMr = no The instrument restart the standard
operating mode when the input is disabled.
With ALMr = yES manual recover for the alarms of
compressors and fans. Push the DOWN key for 3s.
C1-LA
Minimum
pressure
(temperature)
alarm
compressors
section
Suction pressure
or temperature
lower than
LAL value
signaling only
Automatically: as soon as the pressure or
temperature reaches the (LAL+ differential) value.
(differential = 0.3bar or 1°C)
F-LA
Minimum
pressure
(temperature)
alarm fans
section
Condensing
pressure or
temperature
lower than
LAF value
signaling only
Automatically: as soon as the pressure or
temperature reaches the (LAF+ differential) value.
(differential = 0.3bar or 1°C)
C1-HA
Maximum
pressure
(temperature)
alarm
compressors
section
Suction pressure
or temperature
higher than
HAL value
signaling only
Automatically: as soon as the pressure or
temperature reaches the (HAL - differential) value.
(differential = 0.3bar or 1°C)
F-HA
Maximum
pressure
(temperature)
alarm fans
section
Condensing
pressure or
temperature
higher than
HAF value
Depends on the
parameter HFC
Automatically: as soon as the pressure or
temperature reaches the (HAF - differential) value.
(differential = 0.3bar or 1°C)