EVCO EPU2BXP1S1 - Manual (Page 57)

EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
page 57 of 68
7.1 Manual and automatic reset alarms
As shown previously there are two types of alarm. Those with manual reset and those with automatic reset. For some
alarms it is possible to set (Alarms Reset) the most suitable type of reset for user needs by means of the relevant
parameters. Other alarms have predetermined reset type.
7.1.1 Manual reset alarms
If a manual rest alarm occurs the alarm icon starts to flash and the buzzer is activated (if configured PH20=1).
Once the conditions for which the alarm has occurred are reset it is possible to manual reset the alarm. To perform
this operation:
⋅
Enter the relevant alarm page
⋅ hold the ENTER key down for about 2 seconds.
At this point, if there are no other active alarms, the page indicating “NO ALARMS” will be displayed, the icon
disappears, the buzzer switches off and the unit starts working normally. If there are other active alarms the page
relevant to the next active alarm will be displayed.
The consequences relevant to an active manual reset alarm remain valid until the user reset the alarm message.
7.1.2 Automatic reset alarms
If an automatic reset alarm occurs the alarm icon starts to flash and the buzzer is activated (if configured PH20=1).
Once the conditions for which the alarm occurred are reset the alarm message and the relevant consequences are
reset automatically without need of user intervention.
7.2 Alarms table
Below is a list of all alarms managed by the application. The order of presentation is the same as the order of active
alarms occurrence. The alarms can be displayed also with the machine in OFF status.
Code Alarm description Reset Consequence Delay
AL01 Supply fan thermal overload (*1) Automatic Switches all devices off Fixed 2 s
AL02 Return fan thermal overload (*1) Automatic Switches all devices off Fixed 2 s
AL03 Differential pressure switch (*1) Manual Switches all devices off Selectable
AL04 Hot water coil anti-freeze Automatic
- Open the hot water valve
completely
- Close the fresh air damper
- Switches fans OFF
Selectable
AL05
Electric heaters thermal overload – manual
reset
Manual Switches the heaters OFF Fixed 2 s
AL06
Outside air damper limit switch “completely
open” (*1)
Manual Switches all devices off Selectable
Outside air damper limit switch “completely
closed” (*1)
AL07
Electric heaters thermal overload – automatic
reset
Automatic Switches the heaters OFF Selectable
AL09 Supply fan running hours Manual (*2) Signalling only -
AL10 Return fan running hours Manual (*2) Signalling only -