Purging; Starting Up The Product; Running The Installation Assistants; Energy Balance Control - Vaillant VWL 57/5 IS Operating, Installation And Maintenance Instructions

7 Start-up
Note
If you fill the heating circuit at an external
location, you must install an additional mano-
meter to check the pressure in the installa-
tion.
13. Close the filling device.
14. Then check the heating installation pressure again (if
required, repeat the filling procedure).
15. Remove the filling hose from the filling device and
screw the screw cap back on.
16. Set automatic mode for the prioritising diverter valve
again (→ Page 34).
◁
When the product starts up, the diverter valve auto-
matically moves to the "Heating circuit" outlet posi-
tion.
7.5

Purging

1. Open the automatic air vent.
2. Start the purge programme for the building circuit P06
using: Menu Installer level 17 Test menu Check pro-
grammes Purge building circuit P06.
3. Allow the P06 function to run for 15 minutes.
◁
The programme runs for 15 minutes. For 7.5
minutes of that time, the prioritising diverter valve
is at the "heating circuit" position. The prioritising
diverter valve then switches to the "domestic hot
water cylinder" position for 7.5 minutes.
4. Once both purge programmes have finished, check
whether the pressure in the heating circuit is 1.5 bar.
◁
Top up with water if the pressure is below 1.5 bar.
7.6

Starting up the product

Caution.
Risk of material damage in the event of
frost.
If the installation is switched on when there is
ice in the lines, the installation may be mech-
anically damaged.
▶
You must observe the frost protection
instructions.
▶
Do not switch the installation on when
there is a risk of frost.
Note
The product does not have an on/off switch. The
product is switched on as soon as it is connected
to the power grid.
1. Use the partition that is installed on-site (e.g. fuses or
power switches) to switch on the product.
◁
The display shows the basic display.
◁
The basic display appears on the system control
display.
◁
The system's products start up.
◁
The heating and domestic hot water demand are
activated by default.
36
2. When you start up the heat pump system for the first
time after electrical installation, the installation assist-
ants for the system components will start automatically.
Set the required values on the control panel of the in-
door unit first, then on the optional system control and
the other system components.
7.7

Running the installation assistants

The installation assistant is launched when the product is
switched on for the first time. It provides direct access to
the most important check programmes and configuration
settings for starting up the product.
Menu → Installer level → 17 → Configuration.
Confirm the launch of the installation assistant. All heating
and domestic hot water demands are blocked whilst the in-
stallation assistant is active.
To access the next item, confirm by pressing Next in each
case.
If you do not confirm the launch of the installation assistant,
it is closed 10 seconds after you switch on the unit and the
basic display then appears.
7.7.1 Setting the language
▶
Press OK twice to confirm the set language and to avoid
unintentionally changing it.
▽
If you have accidentally set a language that you do
not understand:
▶
You can change the language as follows:
▶
Menu → Basic settings → Language.
▶
Select the required language.
▶
Confirm the selection by pressing OK.
7.7.2 Telephone number for the competent person
You can store your telephone number in the product menu.
The end user can display it in the information menu. The
telephone number can be up to 16 digits long and must not
contain any spaces. If the telephone number is shorter, end
the entry after the last digit by pressing
All of the digits to the right will be deleted.
7.7.3 Ending the installation assistant
▶
Once you have run through the installation assistant suc-
cessfully, confirm by pressing
◁
The installation assistant will close and will not launch
again when the product is next switched on.
7.8

Energy balance control

The energy balance is the integral from the difference
between the flow temperature actual value and target value,
which is added up every minute. If the set heat deficit (WE =
-60°min in heating mode) is reached, the heat pump starts.
If the supplied heat volume corresponds to the heat deficit
(integral = 0°min), the heat pump is switched off.
The energy balancing is used for heating and cooling mode.
Installation and maintenance instructions Hydraulic station 0020257319_02
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