Installing Components For The Energy Supply Company Lockout Function; Limiting The Power Consumption; Menu Functions Without The Optional System Control - Vaillant VWL 57/5 IS Operating, Installation And Maintenance Instructions

6 Electrical installation
▶
Ensure that the mains voltage is in the
permissible range.
X311 X310
1. Install a separate type B residual-current circuit breaker
for the product.
2. Note the specifications on the sticker on the electronics
box.
3. Use a 5-pole power supply cable (low tariff) with a con-
ductor cross-section of 2.5 mm
istance of 90 °C. Use a 3-pole power supply cable (high
tariff) with a conductor cross-section of 0.75 mm
temperature resistance of 90 °C.
4. Remove the cable jacket until there is only 70 mm left
for the 5-pole cable, and only 30 mm left for the 3-pole
cable.
5. Remove the jumper from between connections L1 and
L2.
6. Connect the power supply cable, as shown.
7. Observe the instructions on connecting a dual-tariff
supply; see (→ Page 30).
6.4 Installing components for the energy supply
company lockout function
The heat generation of the heat pump can be switched off in-
termittently. It is switched off by the energy supply company
and usually with a ripple control receiver.
Option 1: Actuating connection S21
▶
Connect a 2-pole control cable to the relay contact (po-
tential-free) for the ripple control receiver and to the con-
nection S21, see appendix.
Note
In the event of control via connection S21, the
energy supply does not have to be disconnec-
ted on-site.
▶
In the system control, set whether the back-up heater,
the compressor or both should be blocked.
▶
Set the parametrisation for connection S21 in the system
control.
Option 2: Disconnect the power supply with con-
tactor
▶
Upstream of the indoor unit, install a contactor into the
power supply for the low tariff.
30
X300
2
and a temperature res-
2
and a
Installation and maintenance instructions Hydraulic station 0020257319_02
▶
Install a 2-pole control cable. Connect the control output
for the ripple control receiver to the control input for the
contactor.
▶
Undo the lines to plug X311, which were installed at the
factory, and remove these along with plug X310.
▶
Connect an unblocked power supply to X311.
▶
Connect the power supply that is switched by the con-
tactor to X300, see appendix.
Note
When the energy supply (for the compressor
or back-up heater) is switched off via the tariff
contactor, S21 is not connected.
6.5

Limiting the power consumption

The electrical power for the back-up heater on the product
and the compressor for the outdoor unit can be limited. You
can set the maximum output in the product's display.
6.6 Menu functions without the optional system
control
If no system control is installed and this has been confirmed
in the installation assistant, the following additional functions
are displayed in the indoor unit's control panel:
–
End user level
–
Room temperature setpoint
–
Screed drying activ.
–
Target cylinder temp.
–
Domestic hot water cylinder temp.
–
Manual cooling activation
–
Installer level
–
Heat curve
–
Summer sw.-off temp.
–
Heating biv. point
–
DHW bivalence point
–
Heating alt. point
–
Max. flow temperature
–
Min. flow temperature
–
Heating mode activ.
–
DHW activation
–
Cyl. charg. hysteresis
–
Limp home mode Immersion heater: Heating/DHW
–
Cooling target flow
–
Screed drying day
If the system control has been retroactively removed or a
defect is present, you must restart the installation assistant
and confirm the function without a system control in order
to obtain the additional functions in the indoor unit's control
panel.