User manual

VAI 3-MWN-U_EN - 10/13 - Vaillant

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OPERATING INSTRUCTIONS

7.8 Indicators of the indoor unit

Fig. 7.21 Overview of the display in the indoor unit.

Legend

1 HEATING indicator

2 COOLING indicator

3 TEMPERATURE indicator

4 ON-OFF indicator

5 DEFROST indicator

7.9 Emergency operation

Only use this function when the remote controller is broken or

has been mislaid.

In order to activate:

• Press the emergency operation switch.

• A beeping noise is heard which indicates that the function

has been put into operation.

Fig 7.22 Emergency operation/operation test switch.

Operating sequence:

• With the rst press of the button, the unit enters into Auto

mode.

• With the second press of the button, the unit switches off.

NOTE:

During Emergency Operation, the unit operates in

AUTO mode by default.

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