Domestic Hot Water Connection - ACV E-Tech S 160 Installation & Servicing Instructions Manual

InstallatIon

DOMESTIC HOT WATER CONNECTION

Pressure reducer
If the water mains pressure is greater than 6 bar, a pressure reducer
calibrated to 4.5 bar must be fitted.
Safety unit
The tank safety unit must be ACV approved and calibrated to 7 bar.
The valve discharge must be connected to the waste water disposal
system.
Domestic hot water expansion tank
Installing a domestic hot water expansion tank avoids any risk of
overpressure due to pressure surges and also makes sure that there
is a always water flowing through the safety unit when refilling the
domestic hot water tank.
Hot water circulation
If the tank is located a long way from the point of use, then installing
a closed recirculation circuit ensures that a faster supply of hot water
is 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. Domestic hot water expansion tank
7. Inlet valve
8. Draw-off valve
9. Bleed valve
IMPORTANT
As a safety measure against burns, we strongly advise
installing a thermostatic mixing valve (recommended
temperature: 60° C).
This is available as an optional accessory
Safety unit
Pressure reducer
Thermostatic mixing valve
Expansion tank
664Y4600 • D
Ø 3/4"
Ø 3/4"
Ø 3/4"
5 liter
EN • 4
2
1
7
9
6
Connection without thermostatic mixing valve
2
1
7
9
6
Connection with thermostatic mixing valve
5 4
8
5 4
8
3