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D-EIMAC01706-18EN - 13/32
Fig. 5
– Hydraulic diagram without pump(s) on board (max. operating pressure 20 bar)
Fig. 6
– Hydraulic diagram with pump(s) on board (opt. 78÷81) (max. operating pressure 6 bar)
Fig. 7 - Hydraulic scheme with hydronic kit (opt.134÷137) (max. operating pressure 6 bar)
Legend
BPHE
Plate heat exchanger
5
Pump (or pumps) in line
FS
Flow switch
6
Filling group
TT
Temperature probe
7
Safety valve (Pt= 6 bar)
2
Filter
8
Anti-vibration joint
3
Pressure Gauge
9
Electrical resistance
4
Shut-off valve