TacoTherm Dual ZEPTO

Functional description

3.3 Components

Components and options

Fig. 7: Components and options

1 Cold water main supply line connection

2 Hot water distribution connection

3 Primary connection for the heat supply return line

4 Primary connection for the heat supply flow line

5 Heating connection return line

6 Heating connection flow line

7 Accessory: Flushing bypass ( Ä page

8 Pressure indicator

9 Strainer (

Ä page 25)

10 Fill bypass

11 Heating circulation pump ( Ä page 26)

12 Heat exchanger: Primary circuit ( Ä page

13 Air bleed valve (

Ä page 26)

14 Control valves

15 Controller

16 Heat exchanger: Secondary circuit ( Ä page

17 Flow rate sensor ( Ä page 28)

18 Expansion vessel ( Ä page 26)

19 Option: Differential pressure control valve ( Ä page

27)

20 Thermal actuator (TacoDrive)

21 Fill and drain valve ( Ä page 27)

22 Option: Magnetic separator

23 Option: Water hammer damper ( Ä page 30)

24 Option: Heat meter

25 Option: Secondary DCW/DHW safety valve ( Ä page

12)

26 Accessory: Connecting rail incl. ball valves and

bypass (

Ä page 29)

27 Safety valve secondary heating (behind manom-

eter)(

Ä page 27)

24

Operating instructions

V03 06/2025 Item no. 215250 EA no. 1292

29)

28)

28)