VRT 390 BEDIENUNGS- UND MONTAGEANLEITUNG ... - Vaillant

Operating elements
1 Day temperature selector
for adjusting to required room temperature.
2 Override/one-off filling of cylinder
for temporary deactivation of heating program or for oneoff
heating up of tank water (Domestic hot water for VUW
combination boilers only in GB)
5 Device cover
6 Display
The display shows the time and day, along with controller
mode and status information
7 Operating mode switch
”Program“ setting
In this setting, the room temperature is controlled by the
pre-set program.
“Heating“ setting
In this setting, the room temperature is permanently
controlled according to the temperature pre-selected on the
day-temperature selector (1).
“Reduce“ setting
In this setting, the room temperature is permanently
controlled according to the reduced (night) temperature.
GB
Display, Overview
A Day of the week
B Status indicator
Heating mode The appliance is in heating mode.
Hot Water The appliance is in hot water mode.
Party The appliance is in party (override) mode
(see page 10).
The “Heating mode“ display message is
blocked-out as heating and hot water are
both available in this operating mode.
1x filling The appliance fills the hot-water tank on a
single occasion (see page 11). (Not
applicable in GB).
Holiday The holiday program is active (see p. 34).
Error messages (see page 40)
Malfunction There is heating system fault.
Connection Data transfer from the controller to the
heating unit has been interrupted.
Maintenance The heating appliance must be serviced.
(only available with compatible boiler
and electronics; not available in GB)
D Operating mode "Night setting”
E Operating mode "Heating”
F Operating mode "Program”
G Actual temperature
(only shown on wall-mounted version)
H Actual time
6