STIEBEL ELTRON HSBC 200 Operation And Installation page 10

INSTALLATIoN
Installation
Supply lines
f The maximum permissible line length between the appli- f
ance and the heat pump will vary, depending on the version
of the heating system (pressure drop). As a standard value,
assume a maximum line length of 10 m and a pipe diameter
of 22-28 mm.
f Protect the flow and return lines against frost with sufficient f
thermal insulation.
f Also protect all supply lines/cables against humidity, damage f
and UV radiation by means of a conduit.
Pressure hoses against structure-borne sound transmission:
The appliance and the heat pump are connected to each other
hydraulically via pipes carrying heating water. To reduce the trans-
mission of structure-borne sound on the water side, connect the
appliance to the heat pump with pressure hoses (not required for
WPL 15-25 A).
Pressure differential:
If the available external pressure difference is exceeded, the pres-
sure drop in the heating system could result in a reduced heating
output.
f When sizing the pipes, ensure that the available external f
pressure differential is not exceeded (see chapter "Specifica-
tion / Data table").
f When calculating the pressure drop, take account of the flow f
and return lines and the pressure drop of the heat pump.
The pressure drop must be covered by the available pressure
differential.
38 | HSBC
11.2.2 Fitting the pump assembly (accessory) if required
To extend the appliance with a heating circuit with mixer, you can
install pump assembly HSBC-HKM (available as accessory).
- Insulated connection pipes
- Pre-fitted contact thermostat
- Heating circuit pump
- 3-way mixer with servomotor
- 2 plastic fixing aids
- Supplement, HSBC-HKM installation and electrical connection
- Operating and installation instructions for the heating circuit
pump
1
2
3
4
1 Dummy plug
2 Union nut (mixed heating return connection)
3 Plastic fixing aid
4 Tee (mixed heating flow connection)
f Replace the dummy plugs with the enclosed plastic fixing f
aids at the mixed heating flow and return connections.
f Remove the union nut at the mixed heating return f
connection.
f Remove the tee at the mixed heating flow connection of the f
buffer cylinder.
f Fit the pump assembly connection pipes. f
Observe the parameter settings in menu "SETTINGS / HEATING /
HEATING CIRCUIT 2" in the enclosed operating and installation
instructions for the heat pump manager.
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