0020262548_01 Operating instructions
17
6.1
Implementing the setting if the heat pump
fails
If the fault message
Restricted operation/ comfort pro-
tection Inactive
appears on the display, the heat pump has
failed and the system control enters limp home mode. The
back-up boiler now supplies the heating installation with
heating energy. During installation, the competent person
has restricted the temperature for limp home mode. You can
feel that the domestic hot water and heating are not becom-
ing very hot.
While you wait for the competent person to come, you can
use the rotary knob to implement the following settings:
Inactive
: The system control works in limp home mode;
heating and domestic hot water become moderately hot.
Heating
: The back-up boiler takes over the heating mode;
the heating becomes hot, the domestic hot water is cold.
DHW
: The back-up boiler takes over the domestic hot water
mode; the domestic hot water becomes hot, the heating is
cold.
DHW+heat.
: The back-up boiler takes over the heating and
domestic hot water mode; the heating and the domestic hot
water become hot.
The back-up boiler is not as efficient as the heat pump,
meaning that using only the back-up boiler to generate heat
is expensive.
If you want to implement settings on the system control, click
Back
and the basic display appears in the display. After five
minutes of no operation, the fault message appears again in
the display.
7
Care
7.1
Caring for the product
▶
Clean the casing with a damp cloth and a little solvent-
free soap.
▶
Do not use sprays, scouring agents, detergents, solvents
or cleaning agents that contain chlorine.
8
Decommissioning
8.1
Decommissioning the product
If you want to replace or remove the product, you must de-
commission the heating installation.
▶
This work should be carried out by a competent person.
8.2
Recycling and disposal
▶
Observe the recycling and disposal information in the
installation instructions.
9
Guarantee and customer service
9.1
Guarantee
We only grant a Vaillant manufacturers warranty if a suitably
qualified engineer has installed the system in accordance
with Vaillant instructions. The system owner will be granted
a warranty in accordance with the Vaillant terms and condi-
tions. All requests for work during the guarantee period must
be made to Vaillant Service Solutions.
9.2
Customer service
For contact details for our customer service department, you
can write to the address that is provided on the back page,
or you can visit www.vaillant.co.uk.
10 Technical data
10.1
Product data in accordance with EU
Ordinance no. 811/2013, 812/2013
On units with integrated weather-compensated controls, in-
cluding a room thermostat function that can be activated, the
seasonal room-heating efficiency always includes the cor-
rection factor for control technology class VI. The seasonal
room-heating efficiency may deviate if this function is deac-
tivated.
Temperature control class
VI
Contribution to the seasonal room-heat-
ing energy efficiency ɳs
4.0 %
