Velleman projects VMB1TC Short user manual - Manual (Page 5)

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2. Temperature sensor 'VMB1TS' connection and button+indicators overview
ENGLISH
BUS TWISTED PAIR (0.5mm²)
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3
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10 11 12 13
LED indication Settings
1 Cooling mode 8 Address setting*
2 Comfort mode 9 Terminator
3 Day mode
4 Night mode Wiring
5 Heating or air-conditioning on 14 power supply 12 to 18Vdc
15 Velbus
Sensor
6 Temperature sensor
Controls
7 Mode pushbutton
7+11 Assign high temperature alarm*
7+12 Assign low temperature alarm*
7+13 Assign circulation pump*
10 Assign airco (COOL)*
11 Assign day setup for Central heating (DAY)*
12 Assign extra fan for boost heat (BOOST)*
13 Assign heater (HEAT)*
* only available for the VMB1TS module