3004256-2014-09-10 Weekly plan Operation It is important to follow the instructions below when the weekly plan is active: 21 °C 0% 29-05-2009 14:32 Set ventilation to OFF. If the HMI panel shows 0% (VEX is inactive) and the unit is operating to a weekly plan when servicing begins, there is a risk that the program may change via a timer operation and restart the VEX unit. Ventilation % Change ventilation 30 20 10 Off Prior to servicing, always set the ventilation to OFF via the user menu. BMS unit or Web server BMS unit or Web server operation: If BMS or Web server controls are used, they could override the OFF function and the VEX may start up irregularly. To disconnect the BMS or WEB server connection, you must remove the plug from the EXact2 main board. Refer to the section on the terminal board in the Electrical Installation Guide. Connect service panel When connecting the service panel you are recommended to use an extra HMI panel connected to the VEX at the connection box. NB The socket on the side of the VEX is only meant for the service HMI. For permanent connection of the HMI, use the external bus connector on the EXact2 main board. 45/72
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