EVCO EPK4BHQ1AH Installer manual - Manual (Page 91)

EVCO S.p.A. c-pro 3 NODE kilo AHU | Application manual ver. 1.0
page 91 of 114
When the control ramp exceeds PP02 the pump will activate; when it falls below PP03 a timer will activate keeping the
pump active for a set period of time (parameter PP04). The timer resets if the ramp returns above PP02. The pump
will be shut down by using the shutdown command from the unit cancelling the active timer.
Note: in case where the primary control is on the fans (PG04=0), this control can be used only if the fan control is in
the modulating type.
6.18.3 Pump status
Both pumps may assume any of the following operating states:
7. Disabled: the pump is not managed by the controller. In the user interface you will see the symbol “ - “ when
in this state.
8. Off: the pump is off. In the user interface you will see written “ON” when in this state “OFF”.
9. Waiting for shutdown: the pump is in the process of shutting down, and is in queue for scheduled protection.
In this status in the user interface you will see written (and flashing) “WOFF”.
10. On: the pump is on. In the user interface you will see written “ON” when in this state.
11. Alarm: the pump alarms are on. In the user interface you will see written “ALARM” when in this state.
6.18.4 Pump alarm inputs
Thermal pump alarm management is provided for both configured pumps.
Control ramp
PP02: Set % Pump
PP03: Set % Pump
Ramp %
Pump
ON
OFF