Alternatives For Hydraulic Connections; Connection Of The Underfloor Heating; Connection Of A Solar Hot Water Tank - REMEHA Calenta 25s Installation And Service Manual

4. Installation
4.5

Alternatives for hydraulic connections

3
7
1
8
7
26
4.5.1.
1
2
3
1
4
5
6
2
7
The boiler can be connected directly to an underfloor heating circuit.
5
If using plastic ducting (for the underfloor heating for example), the
plastic tubes must be totally oxygen-tight according to standard DIN
4
4726/4729. If the synthetic ducting used in the installation does not
conform to these standards, it is advisable to hydraulically separate
6
the boiler circuit from the central heating circuit by installing a plate
heat exchanger.
T001535-C
4.5.2.
1
2
3
3
2
4
5
6
4
7
8
5
Boilers, of the heating and domestic hot water production type, are
suitable for reheating downstream from solar DHW tanks. A kit
(accessory) is available for the connection.
6
T001534-C

Connection of the underfloor heating

Boiler
Expansion vessel
Stopcock
Regulator valve
Filling/drainage valve
Underfloor heating
Heating by radiators
Parameters p"8 and p"9 are used to modify the
pump settings.

Connection of a solar hot water tank

Boiler
Tank
Solar collector
Pump
Flow limiter
Safety unit
Mixer valve
Solar DHW sensor SCU-S02
See the solar domestic hot water tank's technical notes for
more information concerning hydraulic connections.
Calenta 25s - 28c - 35s - 40c
040412 - 7600585-01