SCM Cuno 2 Aqua - Page 31

EN
OEM Manual – CUBO
2
AQUA
UMT/WG T BT Rev3.0 – 08/10/2021 Pag. 29-EN
Mask
index
Topic
Description
Serious
alarm
Normal
alarm
Action
Delay
Reset
ALB03
Low condensing pressure alarm.
Gas Cooler pressure is lower than
the threshold set in the mask De07
x
Shut off the Gas Cooler
3Way Valve
Settable
(by mask
De03)
Automatic
ALB04
High condensing pressure alarm.
Gas Cooler pressure is higher than
the threshold set in the mask De06
x
Forces Gas Cooler 3Way
valve at 100%
Settable
(by mask
De01)
Automatic
ALB15
SUCTION PRESSURE
High suction pressure.
Suction pressure higher than alarm
threshold (settable by mask Cae24)
x
No action
Settable
(by mask
Cae25)
Automatic
ALB16
Low suction pressure.
Suction pressure (read by probe)
lower than the alarm threshold
(settable by mask Cae26)
x
Shut off LT/MT compressor
(settable by mask Cae27)
Settable
(by mask
Cae27)
Automatic
ALB21
GAS COOLER PRESSURE
Blocking alarm for high pressure
prevent.
When GC pressure rises above the
prevent threshold the compressor
speed is reduced up to switch off
the compressor. The threshold is
settable in mask Hb01
x
Decrease the compressor
speed and after a delay
Shut off the compressor
No delay
Automatic
/ manual
ALG01
GENERIC
Al_Clock.
No communication between CPU
and Internal clock
x
Disable all functions
involving scheduler
No delay
---
ALG02
Extended memory error. Faulty
controller
x
Shut off the unit
No delay
---
ALG03
EVAPORATORS
Unreliable condition because of no
MPXPRO connected. The unit will
switch OFF in xx hours.
System shut off the unit when some
controller for evaporators have
been configured in fieldbus but
they result off-line
x
Shut off the unit
---
---
ALT15
SUPERHEAT
Low shuperheat alarm.
Low SH alarm settable by mask
Cae30 (threshold and delay). A
warning for Low SH will be issued
without any delay
x
No action (by default). A
compressor shut off can be
configured by mask Cae30
Settable
by mask
Cae30
Automatic
/ manual
(settable
by mask
Cae30)
ALT19
DSH Low liquid flowback.
This alarm occurs when suction SH
is lower than 0 K AND discharge SH
(DSH) is lower than 10 K for a
period higher than the one set in
mask Cae41
x
Shut off compressor
Settable
by mask
Cae41
Automatic
/ manual
(default)
ALT20
TRANSCRITICAL
HPV Valve position warning.
HPV valve opening is higher that a
threshold for a certain time
(settable by mask Fhb30)
x
No action
Settable
by mask
Fhb30
Automatic
ALT17
Warning setpoint HPV. Gas cooler
press.too low/high, different from
current setpoint.
Difference between Gas Cooler
Pressure and HPV setpoint is
greater than the threshold set on
mask Fhb20 (disabled by default).
x
No action
Settable
by mask
Fhb20
Automatic
ALT18
High receiver pressure alarm.
Receiver Pressure higher than
x
Shut off compressor
(according to configuration
Settable
by mask
Fhb28
Automatic