en
9
EN
661Y1400• C
INSTALLATION
HYDRAULIC CONNECTION
The installation of a safety unit
iscompulsory.
To avoid water discharge on to the
tank, the safety unit must never
be installed above the tank.
In certain countries the domestic
kits must be approved and
included a temperature and
pressure relief valve fitted in the
hot outlet.
To avoid any risk of corrosion,
connect the stainless steel tank
directly to the earth.
Hot water can burn!
ACV recommends using
apreset thermostatic mixer
valve in order to provide hot
water at a maximum of 60°C.
Recommendations
• The tank’s cold water supply pipe must
be fitted with a safety unit that includes
at least: an isolating valve, anon-return
valve, a domestic safety valve calibrated
to 7 bar and an expansion vessel of
suitable size.
• When the operating pressure exceeds
6 bar, a pressure reducer (2) must be
installed before the safety unit.
• Union fittings are recommended
for the easy dismantling of the DHW
connections. Ideally, the “dielectric”
version is favourable to protect
theconnections from corrosion with
the presence of different metals such
ascopper and galvanised steel.
• The installation of a domestic expansion
vessel avoids discharge from the safety
valve (loss of water).
• Capacity of domestic water vessels:
5 Litres for the models : 100 / 130
8 Litres for the models : 160 / 210
12 Litres for the model : 240
Refer to the manufacturer’s
technical instructions on the
expansion vessel for more details.
DHW connection kit available
(code:10800102)
A. DHW temperature control valve
B. Mixed domestic hot water outlet
C. Cold water supply
D. Drainage connection
E. DHW expansion vessel connection
S. Safety valve (7 bar)
TH. Tank hot water outlet
TC. Tank cold water inlet
A
B
E
S
DC
TCTH
