14
4 - Installation
When two or several units are connected in parallel, to balance the
load losses of the various circuits, it is recommended to execute a
“reverse return” connection (see the diagram below).
UNIT 1
UNIT 2
Legend
S On/Off valves
VG Balancing valves
WARNING
Always install the flow switch kit and the
water filter kit supplied loose with the unit (see
accessory chapter for more information). The
lack of these components will void the warranty
Instruction for external pump
Single phase motor pump > 0,37 kW
Threephase motor pump
Single phase motor pump < 0,37 kW
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