heatapp! BASE Installationsanleitung Seite 47

There are three options for connection of the demand request:
OpenTherm: The OpenTherm protocol allows heatapp! to
•
specify the hot water and flow temperature, provided the heat
generator has an OT interface open to external connections.
E.g. an OT room station can be replaced by the heatapp! base.
Connect the OpenTherm link cable to the terminals OT/BUS (in
doing so, ensure correct polarity A / B!). Then subsequently
select the option "Heat generator (OT/Bus)" in the field "Heat
generator" in the set-up wizard.
• Actuator signal 0-10 V: The heatapp! base converts the flow
temperature specification or the heat generator power into a 0-
10 V output signal. The parameter setting for this is performed
in the Profi-mode of the heatapp! base menu.
Connect the actuator signal input (0-10 V) of the heat generator
to the A2 / GND terminals and subsequently select the option
"Heat generator with control signal 0-10V (A2)" in the field
"Heat generator" in the set-up wizard.
• Demand contact (thermostat): For a demand (heating
operation) from the rooms, the contact is closed. If there is no
demand from the rooms, the contact is opened. Connect the
demand contact cable to the A1 terminal and subsequently
select the option "Heat generator switching contact (A1)" in the
field "Heat generator" in the set-up wizard.
• Input E1 is not assigned and remains free.
C Connect the power supply according to the terminal configuration
on the heatapp! base. When connecting the power supply,
VDE 0100 or the corresponding national regulations must be
observed.
D Replace the terminal cover.
12 - EN