VAL
S
TEAM
ADCA
We reserve the right to change the design and material of this product without notice.
IMI ECRU E 01.18
3.2 Function
The standard control system includes a main incoming (isolator) switch, contactors and overloads for each pump. The
front of the control panel includes a ‘Power On’ LED indicator, pump ‘Running’, pump ‘Trip’ LED indicators for each
pump and a selector switch for alternating between automatic, off, and manual operation. Pump operation itself is
controlled via ‘Start’ and ‘Stop’ buttons that are separate for each pump.
Also included are two LED indicators that light up in case of a ‘Low water level’ or ‘High water level’ alarm. Volt-free
telemetry terminals are included for remote stats: ‘Low water level’, ‘High water level’ alarm and pump fault (‘Trip’)
alarms.
The ‘Low water level’ and ‘High water level’ alarms (both visual indicators and volt-free terminals) are cleared out
automatically when the condensate level is between normal levels. Consider normal levels every time the water level
is above the ‘Lower water level’ and below the ‘High water level’.
Level measurement is performed by means of bi-stable magnetic reed switches installed on a magnetic level indicator
or conductive level probes installed on top of the vessel. Both versions share the same control features. The version
which includes conductive level measurement is fitted as standard with a level gauge.
The control system features an alternating relay, which alternates the duty of each pump at the end of every cycle.
Each pump will start its duty when the ‘Pump start level’ is reached and will stop as soon as the water level drops
belo
w the ‘Pump stop level’. In case of a peak demand, although one of the pumps will start working when the level
reaches ‘Pump start level’, the water level will continue rising and, in that case, as soon as it reaches the ‘Pump
cascade level’, both pumps will run simultaneously to relieve this peak demand. The pumps will stop running as soon
as the water level drops below the ‘Pump stop level’. In the next cycle, the system will resume in alternating mode.
The pump ‘Running’ LED indicators will light up each time a pump starts running, and will turn off as soon as it stops.
Manual operation can be selected at any time by turning the operating mode selector switch
to the ‘Manual’ position.
Pumps can be turned off using the same switch or alternatively by pr
essing the respective ‘Stop’ buttons. ‘Automatic’
is the standard operation mode for normal operating conditions.
Pumps are prevented from dry running in both manual and automatic operating modes, and will only work when the
‘Low water level’ is surpassed.
In case of a pump ‘Trip’ (which happens in case of a current overload) the respective LED indicator will light up and
that pump will be prevented from
working. The pump which is operational will start operating as soon as the ‘Pump
cascade level’ is achieved, and on the following cycles, it will always work between the ‘Pump stop level’ and ‘Pump
cascade level’. When the issue is resolved, by human intervention, the system will resume in alternating mode.
3.3 Certification
This product has been designed for use with hot condensate, if required to work with other liquid, factory should be
contacted to ensure compatibility.
It is designed to operate exclusively at atmospheric pressure and therefore is outside the scope of the European
Pressure Equipment Directive. It complies with the European Machinery Directive and therefore carries the CE mark.
When supplied with an integrated control panel the compliance with the Low Voltage Directive and the
Electromagnetic Compatibility Devices Directive is also ensured.
A declaration of conformity is delivered with the equipment according with the relevant Directives in use.
