Immergas 3.011668 Manual page 5

NOTES FOR COMBINATION WITH SYSTEMS WITH
EXTERNAL CIRCULATOR PUMPS (MAX. 3):
The "Zone system connection kit" can also manage systems
designed for operation with external circulator pumps (max.
3). For these applications, in addition to inserting any one-way
valves and regulating valves, check the flow rate/head graph
in the boiler instruction booklet to assess the maximum flow
rate circulating in the boiler. For further information, please
contact the Immergas Consultancy Service.