Riello 20120391, Инструкции для установщика и технической поддержки

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INSTALLATION
INSTALLATION
2.9.1 Connection diagram
1 Brazed plate heat exchanger
2 Heat exchanger electric heating element
3 Shut-off valve
4 Filling unit
5 Air vent
6 Pressure gauge
7 Anti-vibration joints
8 Mesh filter
9 Expansion tank
10 Safety valve
11 Discharge valve
12 Pressure sensor
13 Pipe electric heating element (optional)
14 Circulation pump (single or double)
15 Non-return valve (if second pump is present)
16 Temperature probe
17 Backup tank (optional)
18 Water flow control valve (not required with variable
speed pump)
1 Brazed plate heat exchanger
2 Heat exchanger electric heating element
3 Shut-off valve
4 Filling unit
5 Air vent
6 Pressure gauge
7 Anti-vibration joints
8 Mesh filter
9 Expansion tank
10 Safety valve
11 Discharge valve
12 Flow Switch
13 Pipe electric heating element (optional)
14
Circulation pump (single or double)
15 Non-return valve (if second pump is present)
16 Temperature probe
17 Backup tank (optional)
18 Water flow control valve (not required with variable
speed pump)
NXC-NXH with hydronic module
NXC-NXH without hydronic module
2
1
13 13
13
13
16
13
14
15 10
11
8
3
4
3
3
3
Connections to be
made by the installer
18
3 3
7
7
6
6
5 5
T
16
17
T
11
11
9
P
12
P
12
NXC-NXH unit
2
1
13 13
13
13
16
13
14
15 10
8
3
4
3
3
3
Connections to be made by the installer
18
3 3
7
7
6
6
5
T
16
17
T
11
11
9
F
12
NXC-NXH unit
The water connections must be completed by installing:
− expansion tank if system water volume is higher than the maximum value listed in the tables in section "System water
content and flow rate"
− an appropriately sized technical water accumulation tank
− filling unit
− air vent valves in the piping highest points in addition to those already present on the equipment
− flexible elastic joints
− shut-off valves
− a by-pass valve between the device's delivery and return lines, in order to prevent freezing during the wintertime.