Atlantic CHAUFFEO Installation And Operating Manual page 39

EN
Installation Manual: Overall assembly diagram
General installation diagram
Example with a vertical wall-mounted water heater
Pressure reducer
The pressure reducer is an additional accessory
which should be installed at your water meter's
outlet if the water pressure in your house is greater
than 0.5 MPa (5 bar).
It prevents the safety unit's
valve from opening errati-
cally when the water hea-
ter is not operational.
To determine the water
pressure in your house.
You can find out more
from your water supplier
Warning: the pressure limiter must never be
positioned between the safety unit and the cold
water inlet
Pressure reducer
Safety unit
Safety unit
The safety unit is a mandatory accessory. Its role is
to maintain an interior water pressure of 0.7 MPa
(7 bar) to prevent explosion (it fulfils the same
role as a valve on a pressure cooker).
The safety unit therefore lets water escape when
the water heater is operational. This flow may
represent up to 3% of the volume of the water
heater cycle.
Caution: the safety unit must always be directly
connected to the tank's cold water tank. Nothing
should be fitted between the safety unit and the
water heater. (no valve, no pressure limiter, etc.).
Mains water
000 0000
Water meter
General valve
Waste water
drainage (drains)
inlet
37