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Operating Guide
5.2 Schematic diagram
DH
Supply
DH
Return
Your substation might look different than the schematic diagram shown.
Schematic description
A
Heat exchanger, HE
B
Heat exchanger, DHW
M Electrical wiring box
1
Ball valve
2A Single check valve, WRAS
4
Safety valve
7
Thermostatic valve
DHW:
Domestic Hot Water
DCW:
Domestic Cold Water
HWC:
Hot Water Circulation
DH Supply:
District Heating Supply
DH Return:
District Heating Return
HE Supply:
Heating Supply
HE Return:
Heating Return
5.2.1 Technical parameters
Technical parameters
Nominal pressure:
Max. DH supply temperature:
Min. DCW static pressure:
Brazing material (HEX):
Heat exchangers test pressure:
Sound level:
Termix VVX Compact 28/18 – 7 Series BS-HC
9
Strainer
10 Circulator pump
11 Domestic hot water pump
14 Sensor pocket, energy meter
18 Thermometer
20 Filling/drain valve
24 Delivered loose with unit
PN 16
110 °C
0.5 bar
Copper
30 bar
≤ 55 dB
25 Pressure gauge with ball valve
26 Pressure gauge
31 Differential pressure controller
41 Fitting piece, energy meter
48 Air vent, manual
69 On/off valve
LGB42404
HE
Supply
HE
Return
DHW
DCW
HWC
DEN-GT
11
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Troubleshooting
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