9
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For a system to which only the “Alfa term 27” stove is connected, we recommend an expansion vessel of 25 (l) and
not more than 18 (l), which should be fitted on the return pipe, as close to the boiler as possible, and no block valves
can be fitted between the boiler and expansion vessel.
In order to reduce the risk of condensation, it is recommended to use a three-way mixing valve with a fitting thermostat
when installing the solid fuel.
We recommend that you do not adjust the water temperature below 57 ºC due to possible condensation of the boiler,
neither above 75ºC.
Scheme of the hydraulic installation of a solid fuel
(radiator heating)
Scheme of the hydraulic installation of a solid fuel (radiator and floor heating)
Legend:
1.
Solid fuel
2. Auto Air Vent
3.
Safety valve
3 bar
4.
Non-return valve
5.
Circulation pump
6.
Closed expansion
vessel
7. Contact thermostat
Note:
- It is mandatory to install a thermal discharge valve with thermal
protection, the so-called thermal fuse in accordance with the
recommendations from the technical instructions.
- Install the safety valve directly on the boiler, at the connection
provided, which is described in the instructions.
Legend:
1.
Solid fuel
2.
Auto Air Vent
3.
Safety valve
3 bar
4.
Hydraulic crossover
5.
Circulation pump
6.
Non-return valve
7.
Circulation pump
8.
Closed expansion vessel
9.
Three-way mixing valve with
fitting thermostat
10.
Circulation pump
11.
Underfloor heating separator
12. Contact thermostat
Note: - It is mandatory to install a thermal discharge valve with
thermal protection, the so-called. thermal fuse in accordance with the
recommendations from the technical instructions.
- If only underfloor heating is connected to the stove, be sure to
install a storage tank (BUFFER)
- Install the safety valve directly on the boiler, at the connection
provided, which is described in the instructions.
