Diagnostics, 10 alarm fire/smoke – EVCO EPU2BXP1S1 User Manual
Page 56

EVCO S.p.A.
c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
page 56 of 68
PF33: Adjust the static pressure setpoint V1
PF34: V2 static pressure setpoint adjustment
PF35: Adjust the static pressure setpoint V3
PF36: Proportional pressure control static
PF37: Integral time for static pressure
PH44: Enable static pressure probe
PH46: pressure sensor probe
PH07: minimum threshold value for the probe pressure (Pa)
PH08: maximum threshold value for the probe pressure (Pa)
If PH44 = 1 Fan speed is equal to the supply and return fans.
If PH44 = 2 The fan speed is independent for supply and extract (pressure1 for channel flow and pressure for 2
channel recovery.)
6.8.9
Heating control depending on Return Air Temperature
It is possible to decide whether to control the space heating (by means of hot water coil or electric heaters) depending
on the return ait temperature instead of on the supply air temperature (Pb01=0). To use this function set Pb01=1 and
also set the SPHR parameter indicating the value of the regulation set point on the return air temperature. To use of
this the return air temperature probe must be enabled (PH41=1).
6.8.10
Alarm fire/smoke
This function is activated by parameter PA51. This parameter is used to determine the speed of the fans (return and
supply).
Here are the values:
• PA51 = 0: Disabled
• PA51 = 1: Stop (Fire Unit OFF)
• PA51 = 2: Stop V3 + supply fan - Fan recovery V3
• PA51 = 3: Stop + V0 supply fan - Fan recovery V3
The alarm is reset automatically and immediately reported.
7.
DIAGNOSTICS
The application can manage a series of alarms relevant to the fans and the devices configured. Depending on the
various types of alarm it is possible to configure a manual or automatic reset, a possible delay and the actions to carry
out in the specific case.
When one or more alarms are active the alarm icon
on the main page flashes, if configured (PH20=1) and only
with the machine ON the buzzer is also activated.
To display the alarms, select ALARMS on the general menu or press ESC from the main page and then select “Show
ALARMS >>”.
If the ESC key is pressed on an alarm page or you wait 60 seconds for timeout, go back to the main page of the
application. To scroll through the various active alarms, press ENTER again: the alarms are presented in the order of
priority, as they are listed in the alarms table.
To silence the buzzer, press the
Vgraph
down key for about 2 seconds.