Vaillant vrnetDIALOG 820 Instrucciones De Instalación página 136

5 Electrical installation
Fig. 5.6 Inserting the SIM card
• Before mounting the antenna, check the
reception at the installation location. Use a
mobile phone from the same provider. Hold
it at exactly the position where the GSM
antenna is to be mounted.
• Fit the antenna on a window, or if this is not
possible, near a window as far up as it will go.
14
All manuals and user guides at all-guides.com
Note
If the SIM card is already enabled,
you can also test the reception quali-
ty with the green LED, see 6.2
Note
The GSM antenna may not be mount-
ed directly beside the heater or any
other electrical appliance (such as
the vrnetDIALOG). This can cause
interference.
Installation Manual for vrnetDIALOG
.