Setting The Holiday Mode; Setting The Boost Mode; Setting Limp Home Mode; Activating The Anti-Legionella Function - Vaillant aroSTOR VWL B 200/5 UK Operating Instructions Manual

4.8 Setting the holiday mode

This mode puts the product into standby
operation in which the frost protection
function remains active. This is a program-
mable mode. A duration between 1 and 99
days can be programmed. When you con-
firm the number of days (1 day = 24-hour
time period), the mode will be activated.
This mode temporarily suspends the set
time programming.
The mode ends automatically once
the set number of days has expired.
Throughout the holiday, the display shows
HOLI.RETUR. (return from holiday) and
the number of days remaining.
▶
Press the menu button.
▶
Turn the rotary knob until the HOLI
DAYS menu appears in the display.
▶
Press the rotary knob.
▶
Turn the rotary knob to set the required
number of days' holiday.
▶
Press the rotary knob.
▶
Press the menu button to return to the
original display.
▶
If you return from holiday earlier than
planned, repeat the steps described
above and set the number of days' holi-
day to 0.

4.9 Setting the boost mode

This mode enables temporary simultan-
eous operation of the back-up heater (im-
mersion heater) and the heat pump, in
order to heat up the domestic hot water
more quickly. The symbol (back-up heater
in operation) flashes. If the set target tem-
perature in the domestic hot water cylinder
is reached, the mode is automatically de-
activated.
This mode is automatically deactivated at
most 24 hours after it was activated.
This mode temporarily suspends the set
time programming.
▶
Press the menu button.
0020285064_00 aroSTOR Operating instructions
▶
Turn the rotary knob until the BOOST
menu appears in the display.
▶
Press the rotary knob.
▶
Turn the rotary knob to activate the
BOOST mode.
▶
Press the rotary knob.
▶
Press the menu button to return to the
original display.

4.10 Setting limp home mode

This mode enables a limp home mode for
cases where use of the heat pump is pre-
vented (air pipes not yet connected, dust-
intensive work in the product's vicinity...).
In this mode, energy savings cannot be
achieved by using the heat pump. It should
therefore be used in exceptional circum-
stances and for a limited time period only.
▶
Press the menu button.
▶
Turn the rotary knob until the ELEC.
MODE menu appears in the display.
▶
Press the rotary knob.
▶
Turn the rotary knob to activate the limp
home mode.
▶
Press the rotary knob.
▶
Press the menu button to return to the
original display.
4.11 Activating the anti-legionella
function
The product has an anti-legionella func-
tion. In doing so, the water in the domestic
hot water cylinder to a temperature
between 60 °C and 70 °C.
Consult your competent person to activate
or deactivate the anti-legionella function.

4.12 Frost protection function

Note
The product is protected by the
frost protection function. The hot
and cold water circuit is not protec-
ted by the product.
Function 4
13