ACV Delta Classic, Installation, Operating And Servicing Instructions

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2.2.2.2 ACV circulation kit
ACV offers an optional pre-assembled circulation kit comprising:
- a circulator.
- a 3-way manual motorisable valve.
- connecting pipes including a second optional circuit.
- two isolating valves.
- adapters for mounting safety valve and filling valve to right or
left of expansion tank.
2.2.2.3 Discharge
The drain cock and safety valve must be connected to the waste
water system in accordance with current regulations.
2.2.3 DOMESTIC HOT WATER CONNECTION
2.2.3.1 Pressure reducer
If the water mains pressure is greater than 6 bar, a pressure
reducer calibrated to 4.5
bar must be fitted.
2.2.3.2 Safety unit
The tank safety unit must be ACV approved and calibrated to 7
bar.
The valve discharge must be connected to the sewer drain.
2.2.3.3 Hot water expansion tank
Installing a hot water expansion tank avoids any risk of pressure
surges due to water-hammer.
2.2.3.4 Hot water circulation
If the tank is situated a long way from the point of use, then
installing a closed return circuit can provide a faster supply of
hot water always available.
2.2.3.5 Description
1. Safety unit
2. Pressure reducer
3. Thermostatic mixing valve
4. Hot water circulator
5. Non-return valve
6. Hot water expansion tank
7. Inlet valve
8. Draw-off valve
9. Emptying valve
IMPORTANT
As a safety measure against burns, we strongly advise
installing a thermostatic mixing valve (recommended
temperature: 60° C).
Optional fittings available
2 INSTALLATION
Fig. 5a: Configuration without thermostatic mixing valve
1
2
4
6
5
7
9
8
1
2
3
4
6
5
7
9
8
Fig. 5b: Configuration with thermostatic mixing valve
4
Fig. 4: ACV circulation kit assembly
Safety unit Ø 3/4”
Pressure reducer Ø 3/4”
Thermostatic mixer Ø 3/4”
Hot water expansion tank 5 litres