HDG Compact 25, Руководство по эксплуатации

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4 Planning and installation – Electrical system
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H
YDRAULIC SYSTEMS
The hydraulic systems are to be implemented in accordance with
HDG specifications.
✎
The available hydraulic system options can be found in the section
“4.10 HDG hydraulic systems” in this chapter or in the information
booklet “Hydraulic Solutions for the HDG Hydronic”.
4.7 Electrical system
The electrical connections must be made in accordance with DIN IEC
60364 “Setting up low-voltage electrical installations”.
✎
The technical details are described in the chapter “3 Mode of ope-
ration”, section “3.3 Technical data”.
The circuit boards must be connected in accordance with the circuit
diagram.
✎
The circuit diagram is enclosed with the supplied documentation.
4.8 Water
The heating system must be filled with water in accordance with VDI
guideline 2035, “Avoiding damage in hot water heating systems”.
The diaphragm expansion vessel must be constructed in accordance
with DIN EN 13831 “Closed expansion vessels with built-in dia-
phragm for integration in water installations”.
Before putting the system into operation, the pressure of the dia-
phragm expansion vessel must be adjusted for the conditions in the
heating system and in the building.
2. Ensure the connections (1) of
the indoor thermostat unit
are correct for the respective
function:
• Connections 1 + 2: Room
sensor
• Connections 1 + 3: Remote
adjustment
Figure 4/51 - Connections of indoor thermostat unit
1