EVCO S.p.A.
c-pro 3 nano CHIL | Application manual ver. 1.0 | Code 144CP3NCHE104
page 74 of 90
To bring the compressor to normal operation, you have to refresh the Enable compressor PM1x parameter to the Auto (Automatic)
value; otherwise the compressor in question would continue to operate manually, not complying with the request for switch-on/switch-
off calculated by the configured control.
8.21.2 Fans
Manual or automatic operation of two condensation fans and one dedicated to free-cooling is guaranteed by the parameters PM51
(Circuit # 1) , PM52 (Circuit # 2), and PM65 (free-cooling fan):
• If set on Auto, it sets the normal behaviour of the device;
• If set on Manu, it disables the fan, reversing it to manual function.
A manually activated fan does not take part in the controls and can be forced in ON/OFF mode setting it in the parameters
PM63,PM64,PM67 and modulated setting it in the parameters PM61, PM62, and PM66.
In any event, as already stated, the fan stays sensitive to any alarm and relative consequences.
To bring the fan to normal operation, you have to refresh the parameter PM51/PM52/PM65 parameter to the “A” (Automatic) value;
otherwise the fan in question would continue to operate manually, not complying with the request for switch-on/switch-off calculated by
the configured control.
8.21.3 Pumps
Manual or automatic operation of the circulation pump and source pumps is guaranteed by parameters PM35 (Pump# 1), PM36 (Pump#
2) ePM45 (Source Pump# 1), PM46 (Source Pump# 2):
• If set on Auto, it sets the normal behaviour of the device;
• If set on Manu, it disables the fan, reversing it to manual function.
A manually activated pump does not take part in the controls and can be forced in ON/OFF mode setting it in the parameters
PM37,PM38, and in parameters PM47, PM48 for the source pumps.
In any event, as already stated, the pump stays sensitive to any alarm and relative consequences.
To bring the pump to normal operation, you have to restore the parameters PM35/PM36/PM45/PM56 to the “A” (Automatic) value;
otherwise the pump in question would continue to operate manually, not complying with the request for switch-on/switch-off calculated
by the configured control.
8.22 Restoring the Preset Parameters
Using the “Restore Parameters” procedure you can restore the original preset values of all system parameters. After accessing the InSt-
>MAP menu by LED display or INSTALLER->SAVE/RESTORE via V-Graph – accessible only with the machine switched off – set
parameter PH15=1 and wait for the “0” value to appear on the display again; the system will automatically restore the parameters to
the preset values.
After this operation you must disconnect the machine from the mains and then reconnect it to prevent risk of malfunctioning.
SAVE/RESTORE
Save parameters >
Restore parameters >
Load preset par?
PH15 NO
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