Vaillant uniTOWER plus, Руководство по эксплуатации

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Installation and maintenance instructions 0020291525_04
▶
Activate the internal electric back-up heater with one of
the output levels.
▶
You can find the output levels for the electric back-up
heater in the tables in the appendix.
5.4 kW back-up heater at 230 V and at 400 V
(
→
Appendix K)
▶
Ensure that the maximum output for the electric back-up
heater does not exceed the output of the fuse protection
for the household electricity system .
8.10 Setting the anti-legionella function
▶
Set the anti-legionella function using the system control.
To ensure sufficient anti-legionella protection, the electric
back-up heater must be activated.
Condition : Internal electric back-up heater deactivated or external back-up
heater
The anti-legionella function can be used without a back-up
heater in the outdoor temperature range of -10 °C to +30 °C;
outside of this temperature range, the function can only be
used with an activated internal or external back-up heater.
An external back-up heater must be protected against over-
heating, for example, so that it is intrinsically safe. An ex-
ternal back-up heater must be connected to contact
X14 via
a cut-off relay. On the indoor unit's control, the setting must
be converted to the external back-up heater under
MO relay .
Menu
→
Installer level
→
Configuration .
8.11 Calling up the installer level
1. Press and at the same time.
2. Navigate to Menu
→
Installer level and confirm by
pressing ( OK ).
3. Set the value 17 and confirm by pressing .
8.12 Checking the configuration
You can recheck and set the most important system para-
meters. Call up
Configuration to configure the menu item.
Menu
→
Installer level
→
Configuration .
8.13 Calling up statistics
Menu
→
Installer level
→
Test menu
→
Statistics
You can use this function to call up the statistics for the heat
pump.
8.14 Displaying the filling pressure in the building
circuit
The product has a pressure sensor in the heating circuit and
a digital pressure display.
▶
Select Menu Live Monitor to display the filling pressure
in the building circuit.
8.15 Activating cooling mode
▶
Go to the indoor unit's control panel.
▶
Navigate to: Menu
→
Installer level
→
Configuration
→
Cooling technology .
▶
Select: Active cooling.
▶
If this involves a heat pump cascade, implement this set-
ting for every heat pump with cooling function.
Condition : System control present
▶
Go to the system control.
▶
Activate cooling mode (
→
Instructions for the system con-
trol).
8.16 Checking function and leak-tightness
Before you hand the product over to the end user:
▶
Check the heating installation (heat generator and sys-
tem) and the domestic hot water pipes for tightness.
▶
Check whether the drain pipework for the purging con-
nections has been installed correctly.
8.16.1 Checking the heating mode
▶
Start check programme P.04.
8.16.2 Checking the domestic hot water generation
▶
Check whether the cylinder is purged and the domestic
hot water temperature is reached.
8.17 Floor drying
–
Condition: No system control connected
Caution.
Risk of damage to the product caused by
impermissible purging
Without purging the heating circuit, the sys-
tem may become damaged.
▶
If the screed drying is activated without a
system control, purge the system manu-
ally. No automatic purging takes place.
–
You can use this function to "dry heat" freshly laid screed
in accordance with the construction regulations, accord-
ing to a defined time and temperature schedule, without
the need for a system control to be connected.
VIH QW 190/6
If there is no electric back-up heater, screed drying is
only possible with this product if the return temperature is
above 10 °C. This corresponds approximately to an outdoor
temperature of +5 °C. At outdoor temperatures below
+5 °C, there is a risk of increased icing of the fin-type heat
exchanger in the outdoor unit.
When screed drying is activated, all the selected operating
modes are interrupted. The function controls the flow tem-
perature of the controlled heating circuit according to a pre-
set programme, regardless of the outdoor temperature.
The display shows the target flow temperature. You can
manually set the current day.