Velleman VMB1TSW User Manual download pdf (Page 14)

Cooling or heating mode

When the temperature sensor is configured to control an air-conditioning system, the frost flower LED (upper LED)

will be lit. Setting the heating or cooling mode can only be done through a temperature controller (VMB1TC /

VMB1TCW) or through the Velbus link program.

Heating mode Cooling mode

Air-conditioner or heater active

When the heater (valve open) or air-conditioner is active, a red LED will be lit.

The red output LED can indicate following error conditions:

 Flashing (short on, long off): the heater/cooler should be off but it did not

receive the command from the relays module.

 Flashing (short off, long on): the heater/cooler should be on but it did not

receive the command from the relays module.

 Fast flashing: configuration of the sensor chip failed.

Note: as long as the error condition exists the output status wil be re-

transmitted every minute.

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Velleman VMB1TSW User Manual Page 14