EVCO S.p.A.
EV3 MVC & EVD MVC | Application manual ver. 1.0 | Code 144EV3MVI104
page 55 of 72
switch is active. It deactivates if the input is inactive.
Manual alarm
Main results
- The compressor is switched off.
AL12 AdS
Compressor discharge alarm
The alarm signal is activated if the value of the probe configured as
compressor discharge rises above the A11 parameter value, and it is
deactivated when this measurement falls below A11-A12
Automatic alarm
Main results
- The compressor is switched off.
AL13 AFnH
Fan hour alarm
The alarm signal is activated if the fan hour value is above the limit set
by parameter A01
The alarm switches off when the fan hours are reset on the menu.
Automatic alarm
Main results
- signal only
AL14 ACPH
Compressor hour alarm
The alarm signal is activated if the compressor hour value is above the
limit set by parameter A02
The alarm switches off when the compressor hours are reset on the
menu.
Automatic alarm
Main results
- signal only
AL15 AOdM
External air damper alarm
The alarm signal is activated when the limit switch sensors for the
external air damper do not react quickly enough (A10) when
movement is ordered.
Manual alarm
Main results
- All loads are switched off
AL16 Artc
Clock alarm
The alarm signal is activated when the clock shows an invalid date, is
broken or disabled (C09) and timer setting regulation is activated (t01)
Automatic alarm
Main results
- regulating using the clock is not permitted
AL17
AL18
AFLS
AFLr
Supply or return flow alarm
The alarm signal is activated when the input configured as a flow
switch is active for a time period equal to A07, with an A06 delay from
fan switch-on; it is deactivated when the input is not active for a time
period equal to A08
It reverts to manual reset if the number of alarm events in an hour
exceeds A09.
Main results
- when the alarm is in automatic mode the electric coils and
the compressor are switched off
- when the alarm is in manual mode all the loads are switched
off
AL19 ACnf Change-over probe not configured alarm