Buderus 800 - Page 20

Installation1
Wall-mounted condensing gas boiler Buderus 800 - Subject to modifications resulting from technical improvements!
20
1.9.3 Connecting a three-way valve of an external
storage-type water heater
 Three-way valve with plug:
Connect the plug-and-socket connector to the plug of
the external storage-type water heater (fig. 21).
 Three-way valve without plug:
Connect the three-way valve to terminals 9 and 11 of
the terminal strap (fig. 22, item 5).
1.9.4 External controls
The wall-mounted condensing gas boiler can be fitted
with the following control devices:
– Buderus programmable room thermostat
(see subsection 1.9.5).
– A room-temperature control device at 230V
connected to the RTH converter (see subsection
1.9.6);
– ON/OFF temperature controller, volt free
(see subsection 1.9.7);
fig. 21 Connecting a three-way valve of an external storage-
type water heater