Connecting Tr2 Room Thermostat; Connecting A Hot Water Cylinder - Benchmark ZSBR 7-30 RD 430i Installation And Servicing Instructions

Electrical connections
4.2

Connecting TR2 Room thermostat

The TR2 should be connected to terminals 3, 4 and F
beneath the Textdisplay, page 8, Fig. 4, Pos. 422.
4.3 Mains Voltage external controls
connections
Please note, that the in-built supplied controls and text
display timer prevent and negate the need for any fur-
ther external controls.
4.4

Connecting a Hot Water Cylinder

The sensor for the connection is in the package of the
appliance.
B Snap out plastic tongue.
B Insert cylinder NTC sensor lead.
B Plug connector into PCB.
1 2 4 7 8 9
Fig. 29
Position the sensor for the Hot Water
i
Cylinder according to the cylinder manu-
facturers instruction.
In the event of no instruction, the sensor
should be in contact with the outside of
the cylinder wall (below any insulation*)
approximately one third of the way up from
the cylinder base.
* Care must be taken not to damage the cylinder when
removing any insulation.
22
4151-48.10R
6 720 611 449 GB (03.11)