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52
C6.1.11/0718-0619/E
Alarms Circuit 1
Code
Name on
Visograph
Description
Cause
Action
Reset
LL1
LL1
Liquid level alarm
in Circuit 1
Proper digital input enabled
(the input is configured as
DI1 = 109 liquid level Circuit 1)
After delay CDI1
Only signalling
Automatically
as soon as the input is
disabled
PrSH1
PRSH1
Pre-alarm for
superheat in
Circuit 1
Superheat 1 is ≤ ASH1 + ASH2
and
≥ ASH2
Only signalling
Automatically
when superheat exceeds
ASH1 + ASH2 + hysteresis
ALSH1
ALSH1
Alarm for
superheat in
Circuit 1
Superheat 1 is ≤ ASH2
Depends on ASH4
Automatically
when superheat exceeds
ASH5 + ASH2
LPC1
LPC1
Electronic
pressure switch
for low
temperature /
pressure in
Circuit 1
Pressure/temperature < AL21
▪
Disables the compressors
▪
Fans follow SL16
Automatically
when the
pressure/temperature exceeds
AL21 + differential
PR1
PREG1
Suction probe
failure alarm in
Circuit 1
Suction probe failure or out of
range, eg, the probe is
configured as AIC = 1 NTC probe
regulation suction Circuit 1
▪
The compressors are
activated according to the
AL14/AL15 parameters
▪
Fans follow SL16
Automatically
as soon as the probe
restarts working
PR3
PREG3
Condensing probe
failure alarm in
Circuit 1
Condensing probe failure or out
of range, eg, the probe is
configured as AIC = 2 NTC probe
regulation condensing Circuit 1
▪
Fans are activated
according to the AL31
parameters
▪
Compressors are off
▪
HPV is GC34/GC35
depending on the mode
Automatically
as soon as the probe
restarts working
Floodback 1
FBSH1
Floodback alarm
in Circuit 1
ASH2 > superheat (suction
pressure & suction temperature)
for 90 minutes
Only signalling
Automatically
when superheat exceeds
ASH2
Summary of Contents for Copeland EazyCool OME-4MTL-09X
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