The GRE Ltd COMBIPUMP™ energy saving pump set featuresan innovative microprocessor controller and variable speedpump to maintain a set outlet pressure. This ensures that onlythe desired flow is delivered to the system and that energy use is optimised. When there is no demand the pump automatically switches to energy saving mode.

With auto changeover in the event of pump fail uninterrupted flow is maintained at all times.

• Monitoring and indication of High- and Low- side pressure, fluid temperature and ambient temperature

• Detection & alarm in the event of loss of flow

• Detection & alarm in the event of pump over-current trip

• Alarms in the event of high and low temperature

• Low pressure protection (e.g. in the event of a system leak)

• High pressure protection (e.g. in the event of a valve being inadvertently left closed or a system blockage)

• Alarm handling, including external alarm Volt-Free Contact

• Anti-frost protection by circulating pump if low ambient temperature is detected

• Visual indication of all operating parameters