Checking Function And Leak-Tightness; Thoroughly Flushing The Heating Installation ("Hot"); Adapting The Unit To The Heating Installation; Burner Anti-Cycling Time - Vaillant ecoTEC plus Installation And Maintenance Instructions Manual

▶
If an adjustment is not possible in the specified adjust-
ment range, you must not start up the product.
▶
If this is the case, inform Customer Service.
▶
Screw the covering cap back in.
▶
Install the front casing.
7.16

Checking function and leak-tightness

Before you hand the product over to the operator:
▶
Check the gas line, the flue gas installation, the heating
installation and the hot water pipes for leaks.
▶
Check that the air/flue pipe and condensate drain pipe-
work have been installed correctly.
▶
Check that the front casing has been installed correctly.
7.16.1 Checking the heating mode
1. Make sure that there is a heat requirement.
2. Call up the Live Monitor.
◁
If the product is working correctly, the display shows
S.04.
7.16.2 Checking the hot water generation
Applicability: Product with integrated hot water generation
1. Open a hot water valve all the way.
2. Call up the Live Monitor.
◁
If the hot water generation is working correctly, S.14
appears in the display.
7.16.3 Checking the hot water generation
Applicability: Product with heating mode only
1. Ensure that the cylinder charging mode is requesting
heat.
2. Call up the Live Monitor.
◁
If the cylinder is charged correctly, the display
shows S.24.
3. If you have connected a controller which can be used to
set the hot water temperature, set the hot water temper-
ature on the boiler to the maximum possible temperat-
ure.
4. Adjust the target temperature for the connected do-
mestic hot water cylinder to the controller.
◁
The product adopts the set target temperature that
is set on the controller.
7.17 Thoroughly flushing the heating installation
("hot")
1. Operate the appliance until the boiler and the heating
system are up to temperature.
2. Check the heating system for leaks.
3. Connect a hose to the drain valve located at the lowest
position of the heating system.
4. Shut off the boiler, open the drain valve and all purge
valves on the radiators and allow the water to flow out
of the heating system and the boiler quickly and fully.
5. Close the drain valve.
0020209591_01 ecoTEC plus Installation and maintenance instructions

Adapting the unit to the heating installation 8

6. Fill the heating system again with water as described in
Filling the heating installation (→ Page 23) and Purging
the heating installation (→ Page 24).
7. Re-fill the system until the system design pressure of
0,1 MPa (1,0 bar) is attained.
8. Install the front casing.
8 Adapting the unit to the heating
installation
To reset the most important system parameters, use the
Appliance config. menu point.
Menu → Installer level Appliance config.
Or manually relaunch the installation assistant.
Menu → Installer level → Start inst. assistant
You can find setting options in the Diagnostics menu.
Menu → Installer level Diagnostics menu
Overview of diagnostics codes (→ Page 41)
8.1

Burner anti-cycling time

To prevent frequent switching on and off of the burner and
thus prevent energy losses, an electronic restart lockout
is activated for a specific period each time the burner is
switched off. The burner anti-cycling time is only active
for the heating mode. Hot water handling during a burner
anti-cycling time does not affect the time function element
(default setting: 20 mins).
8.1.1 Setting the burner anti-cycling time
Navigate to Menu → Installer level → Diagnostics
1.
menu → D.002 Max. anti-cycl. time: Heating and con-
firm by pressing
2. Set the burner anti-cycling time and confirm by pressing
.
Note
The actual reading on the digital pressure
gauge should ideally be 0,05 MPa (0,5 bar)
plus an additional pressure corresponding
to the highest point of the system above the
base of the boiler – 10 m head equals an ad-
ditional 1 bar reading on the pressure gauge.
The minimum pressure should not be less
than 0,1 MPa (1 bar) in any installation. If
the system is to be treated with an inhibitor it
should be applied at this stage in accordance
with the manufacturer's instructions. Further
information can be obtained from Sentinel,
Betz Dearborn Ltd., Tel: 0151 420 9595, or
Fernox, Alpha– Fry technologies. Tel: 0870
8700362.
.
27