69
Installation
EN
Hydraulic connection diagram for NXC 017-021 units
T
T
2
1
3
3
4
5
6 7
8
B
A
11 12 11
13
14
14
15
16
11
11
11
11
17
17
9
18
18
19
19
10
Hydraulic connection diagram for NXC / NXH 026-040 units
4
5
6 7
10
9
T
T
2
1
3
3
8
B
A
11
12
11
13
14
14
15
16
11
11
11
11
17
17
18
18
19
19
A Factory connections
B Connections to be made by the installer
1 Plate exchanger
2 Exchanger electric heating element
3 Temperature probe
4 Pipe electric heating element
5 Circulation pump
6 Safety valve
7 Flow Switch
8 Discharge valve
9 Expansion tank
10 Mesh filter
11 Shut-off valve
12 Filling unit
13 Pressure gauge
14 Discharge valve
15 By-pass valve for anti-freeze protection
16 Calibration valve (supplied with the machine)
17 Anti-vibration joints
18 Air vent
19 Thermometer
2.9.1 Connection diagrams
