EN • 10
INSTALLATION
8
8
4
3
1
2
5
6
9
7
HEATING SYSTEM CONNECTION
TYPICAL SINGLE CIRCUIT CONFIGURATION
1. 3-way motorised mixer valve.
2. Safety valve calibrated to 3 bar, with pressure gauge.
3. Pump.
4. Check valve.
5. System filling valve.
6. Expansion vessel.
7. Controller ACV 13.00
(see Controller Kit on page 11)
8. Isolating valve, heating system.
9. Drain cock.
DRAIN
The drain cock and safety valve must be connected to the sewer.
DOMESTIC HOT WATER CONNECTION
TYPICAL CIRCUIT WITH THERMOSTAT VALVE
1. Safety group
2. Pressure reducing valve
3. Thermostatic mixer
4. Hot water pump
5. Check valve
6. Hot water expansion vessel
7. Cold water supply tap
8. Drawoff tap
9. Drain cock
10. Air vent
11. Isolating valve
PRESSURE REDUCING VALVE
If the mains water pressure exceeds 6 bar, a pressure reducing
valve calibrated to 4.5 bar must be installed.
SAFETY GROUP
The safety group of the water tank must be approved by ACV and
calibrated to 7 bar; the group’s valve discharge must be connected
to the sewer.
HOT WATER EXPANSION VESSEL
Installing a hot water expansion vessel will prevent any risk of excess
pressure due to water hammer or pressure fluctuations.
HOT WATER CIRCULATION
If the water tank is a long way from the point of use, installing a
closed recirculation circuit can ensure a faster hot water drawoff
at any time.
ACV HYDRAULIC KIT
ACV can supply an optional
pre-assembled water kit.
This kit comprises:
• A pump;
• A 3-way manual valve. This valve can be
motorised if required;
• Connection pipes that can be used to
connect a second heating circuit;
• Two isolating valves;
• Connectors for the right or left hand
mounting of the expansion vessel, the
safety valve with pressure gauge and the
filling valve. The expansion vessel is not
included.
4
5
3
11
8
10
6
9
7
5
2
1
Optional accessories
Safety group
Ø 3/4”
Pressure reducing valve
Ø 3/4”
Thermostatic mixer
Ø 3/4”
Expansion vessel
5 litres
IMPORTANT
As a safety
measure, we
strongly advise
the installation of
a thermostatic
mixer to prevent
any risk of
burning to
persons.
Summary of Contents for Delta F25
Page 18: ...EN 18 ...
