Commissioning
OPERATION MANUAL Chapter 2
Unistat® V2.0.0en/09.06.16//15.09
2.12.3 Connecting the functional earth
PROCEDURE
Connect the temperature control unit’s >Functional earth terminal< [87] with the building’s
grounding point. Use a ground strap for this purpose. Please refer to the wiring diagram from
page 96 in section »Annex« for the exact position and thread size.
2.12.4 Converting the power supply connection
To restore the factory settings, the connection values must be re-entered.
The following temperature control units can be converted:
Unistat tango, tango wl
Unistat 405, 405w, 410w, 705, 705w.
▪ The temperature control units can be set to either 230 V/50 Hz or to 400 V/50 Hz.
▪ Install the temperature control unit at the location provided.
▪ The maximum current consumption at 230 V operation is just below 16 A.
However, there are 230 V power supplies with a smaller fuse protection. During initial startup you
will be prompted to adjust the power consumption of the temperature control unit to your cur-
rent power supply.
The choices are:
16 A 100% heating power with switched on compressor.
10 A Reduced heating power with switched on compressor.
A disconnected compressor does not effect the heating power:
16 A 100% heating power with switched off compressor.
10 A 100% heating power with switched off compressor.
It does not impact the control mode.
You can also change the maximum power consumption at the Pilot ONE menu later on.
▪ The supply voltage must be selected during start-up for some temperature control units. This
selection can be changed later in the Pilot ONE menu ([Category menu] > [Installation] > [Power
supply]). The menu option “Voltage Supply” is visible only if the temperature control unit sup-
ports manually switching the voltage supply. The supply voltage must be reselected if the tem-
perature control unit has been reset to the factory settings.