IVT Vent 402, Руководство по установке

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Service menu overview
Vent 402 – 6721815546 (2021/03)
42
CAN-BUS connected accessories, e.g. output limiter, are connected to
the installer module in the heat pump parallel to the CAN-BUS
connection to the heat pump. They can also be connected in series with
other CAN-BUS connected units.
12.13.2 EMS-BUS
The user interface and installer module are connected with an EMS-BUS.
The user interface is powered via the BUS cable. Polarity is not important
for the two cables in the EMS-BUS.
In case of EMS-BUS accessories it is important to note that (please also
refer to the installation instructions for each accessory):
▶ If several BUS units are installed, there must be a minimum spacing of
100 mm between them.
▶ If several BUS units are installed, they must be connected in a series
or a star network.
▶ Use cable with a conductor cross section of at least 0.5 mm
2
.
▶ In case of external inductive interferences (e.g. from PV systems),
use screened cables. The screen should only be earthed to a chassis
at one end.
12.13.3 Circulation pump for DHW PW2
WhenPW2(accessory) is connected to the installer module, it runs
constantly, no adjustments are made in the user interface. DHW
circulation must be connected to an external DHW cylinder, to not
disrupt the stratification in the integrated cylinder.
12.13.4 Several heating circuits
The user interface can handle a heating circuit without a mixing valve in
standard configuration. To install additional circuits, a mixing valve
module (accessory) is required for each circuit.
▶ Install the mixing valve module, mixing valve, DHW circulation pump
and other components in accordance with the selected system
solution.
▶ Connect the mixing valve module to terminal EMS on the installer
module in the electrical box in the heat pump module.
▶ Adjust the settings for several heating circuits following the
installation instructions for the user interface.
12.13.5 Room controller
If a room controller (accessory) is installed after the system has been
commissioned, it must be selected as the control unit for heating circuit
1 in the commissioning menu.
▶ Install the room controllers as per the instructions
▶ Connect the room controllers to terminal EMS on the installer module
in the electrical box in the heat pump.
▶ Set the room controller RC100 to remote control before starting the
system (see instructions for room controllers).
▶ Adjust the setting of the circuit on the room controllers before
starting the system (see instruction for room controllers).
▶ Indicate when starting the system that room controller RC100 has
been installed as control unit for heating circuit1.
▶ Set the room temperature in the user interface.
If there is already a connection on the EMS terminal, make a parallel
connection on the same terminal. If several EMS modules are installed in
the system, these shall be connected as indicated in the wiring diagram.
Fig. 54 EMS connection on installer module
12.13.6 Filter dryer accessory
If an intervention in the refrigerant circuit is made, use the filter dryer kit.
12.13.7 Pipe hiding accessory
To install the pipe hiding accessory, use the pipe hiding kit which
contains 2 sheet metals, 2 stabilization bars and screws.
12.13.8 Supply air module - accessories
The supply air module is intended for heating supply air in the system.
The module is complete with fan, filter, water battery and protective
equipment at too low a battery temperature.
13 Service menu overview
The menu options are shown in the order below. Some options are only
visible if a corresponding accessory has been installed.
Service
Commissioning
– Country
– Min. outdoor temperature
– Only DHW Production
– Exhaust air heat recovery installed
– Heating system HC1
– Radiators
– Convectors
– Radiant floor heating
– Max. temp HC1
– Max. temp HC1
– Heating system HC2
– Radiators
– Convectors
– Radiant floor heating
– Max. temp HC2
– Max. temp HC2
– Fuse
– Store installer settings
6 720 809 156-42.2I
EMS NSC/IP