ECO P N
42
EN
cod. 3541S060 - Rev. 00 - 05/2019
2.5 Connection to an external tank for domestic hot water production
Connection with circulating pump
The unit's electronic board is arranged for managing an external storage tank for domestic hot water production. Carry
out the plumbing connections according to the diagram fig. 10 (pumps and non-return valves must be supplied sepa-
rately). Carry out the electrical connections as shown in the wiring diagram (see fig. 18). A LAMBORGHINI probe must
be used. At the next lighting, the boiler control system detects the hot water tank probe and automatically configures
the DHW function, activating the display and relevant controls.
fig. 10 - Diagram of connection with circulating pump
Legend
8
Domestic hot water outlet
9
Cold water inlet
10
System delivery
11
System return
32
Heating circulating pump
42
DHW temperature sensor
130
Hot water tank circulating pump
8
9
10
11
32
130
42
