18
Installation components
18 Air vent
19 Flexible connection
20 Check valve
21 Charge valve
22 Anti-vibration mounting
23 Pump support
24 Water heat exchanger inlet
25 Water heat exchanger outlet
26 Customer water inlet connection
27 Customer water outlet connection
--- Hydronic module (unit with hydronic module)
Note:
-
The system is protected against frost (anti-freeze solution or electric heater).
-
The hydronic module is protected against frost by electric heaters (item 12).
-
The unit water heat exchanger is protected against frost by a factory-
installed electric heater (‘water heat exchanger frost protection’ option)
legend
Components of the unit and hydronic module
1
Victaulic screen filter
2
Expansion tank
3
Safety valve
4
Available pressure pump
5
Pressure tap
6
Pressure gauge to measure the component pressure drop
7
Pressure gauge system drain valve
8
Drain valve
9
Flow control valve
10 Heat exchanger
11 Water heat exchanger defrost heater
12 Hydronic module defrost heater
13 Air vent (water heat exchanger)
14 Water drain (water heat exchanger)
15 Expansion compensator (flexible connections)
16 Flow switch
17 Water temperature
This diagram illustrates a typical hydronic installation.
8.2 - hydronic connections
8.2.1 - Unit equipped with hydronic module option
1
2
3
4
5
5
6
7
9
20
19
21
12
12
12
14
13
15
15
16
5
5
8
18
17
17
12
12
19
10
11
20
12
12
5
8
24
15
15
4
2
23
26
22
12
3
9
25
5
5
5
7
6
27
12
1
