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Domesticwater recirculation ring(optional)
Insulation valve
Heating circulation pump
Tank
circulation pump
Boiler
Safety valve
Exp.
vessel
Insulation valve
Differential pressure valve (*)
Manometer
Thermostatic
mixing valve
Sanitary hot
water
Sanitary safety group
7 bar NF
Sewer
Cold water net
Non return valves
Pressure reducer
(required if P
COLD WATER
> 5 bar)
CA disconnection function to
avoid the returns to the tap
water.
Automatic air
purging
(**)
Tank
(placed next to the
boiler)
Sanitary
water
expansion
(recommended)
Filling valve
INSTALLATION OF THE BOILER ASSOCIATED TO A SANITARY
HOT WATER TANK PRODUCTION
The diagram is not a contract document.
Certain devices are not part of the scope of
our supply but are mentioned because
required for a good plant performance.
(*)
If all the plant radiators are equipped with thermostatic valves, a differential pressure valve should be placed
between the delivery and return boilers.
(**)
If the tank is placed higher than the boiler, an automatic draining valve should be arranged.
When connecting the circuit of domestic hot water, the copper tubes must not in any case enter too much inside the tubes
of connection of the tank, neither be in direct contact with those ones. The connections to a copper drain must obligatorily
be done by the intermediary of a cast-iron sleeve, out of steel or plastic.
It is a must to position the safety group always supplied together with the tank and including:
-
locking valve (A) with built-in retaining valve
-
safety valve - metering 7 bar
-
drain opening (C)
