23
Water scheme for HT + LT circuit system and domestic water storage tank (3-way command)
LP
direct circuit
HP
direct circuit
1
4
8
9
5
6
7
4
6
4
5
4
4
4
3
2
10
Fig. 19
1
Heat generator
2
Expansion vessel (indoor also available as an option)
3
System filter
4
System shut-off valve
5
Circulator (230Vac / 50Hz / P<120W)
6
Non-return valve
7
Safety thermostat with contact even compatible with
low voltage/low current
8
Mixer valve (24VAC/ 50Hz / P<50W / 120sec)
9
BT circuit probe (NTC 10K
Ώ
@25°C
β
3545)
10
Storage cylinder
