UMT/WG T MT Rev3.0 – 08/10/2021 Pag. 27-EN
Gas cooler pressure probe broken
or disconnected.
Gas cooler pressure probe broken,
disconnected or not properly
configured
No action on the regulation
The opening of HPV valve
will be fixed at a safety
value settable in mask
Fhb13
External temperature probe broken
or disconnected.
External temperature probe could
be broken, disconnected or not
properly configured
All Functions managed by
this probe will be disabled:
- Floating Condensing
setpoint
- auto-switch of regulation
on T_ext in case of
T_outlet_GC is fault (mask
Dag14)
- speed up opening of gas
cooler 3way-valve according
to T_ext (mask Dag13)
Suction pressure probe broken or
disconnected.
Suction pressure probe broken,
disconnected or not properly
configured
Shut off of LT/MT
compressor (according to
the setting made on mask
Cag03)
Suction temperature probe broken
or disconnected.
Suction temperature probe broken,
disconnected or not properly
configured
No action on the regulation
gas cooler out temp.probe broken.
Gas Cooler outlet temperature
probe broken, disconnected or not
properly configured
Shut off Gas Cooler 3Way
Valve
Receiver pressure probe broken,
disconnected or not properly
configured
No action on the regulation
RPRV will open at a safety
position(settable by Fhb26)
Common high condensing pressure
switch alarm.
High Pressure pressure switch (for
Parallel/MT compressor). It is active
when Gas Cooler pressure is higher
than the pressure switch threshold
Shut off Parallel/MT
compressor
Low condensing pressure alarm.
Gas Cooler pressure is lower than
the threshold set in the mask De07
Shut off the Gas Cooler
3Way-Valve
High condensing pressure alarm.
Gas Cooler pressure is higher than
the threshold set in the mask De06
Forces Gas Cooler 3Way-
Valve at 100%
High suction pressure.
Suction pressure higher than alarm
threshold (settable by mask Cae24)
Low suction pressure.
Suction pressure (read by probe)
lower than the alarm threshold
(settable by mask Cae26)
Shut off LT/MT compressor
(settable by mask Cae27)