Remote Temperature Probe For Room Units; Rooms With Various Heating / Cooling Systems; Geofencing - Rehau NEA SMART 2.0 Service Manual

4.6.10 Remote temperature probe for room units

All room units feature an additional input, which accepts a remote
temperature probe or a digital input.
For digital inputs see chapter 4.7.1.
With a temperature probe the following functions is possible:
- Limiting of minimum and maximum floor temperature:
minimum value for cooling and maximum value for heating – or –
2 minimum values for cooling or maximum value for heating
- Additional room temperature input:
room temperature is taken as the average reading from room unit and
remote probe
- Floor temperature control:
room is solely controlled via floor temperature
- Condensation protection for chilled ceilings:
Probe can be attached to chilled ceiling element or to flow pipe.
Assigned valve is closed when temperature comes close to dew
point of this room

4.6.11 Rooms with various heating / cooling systems

As described in chapter 4.2.1 and 4.2.2 a room may have different
systems in terms of type (floor, wall, ceiling) and in terms of operating
mode (heating, cooling, heating and cooling).
For each system there is an individual set of parameters which
considers the specific properties for room temperature control.
Example:
A room with a floor system (heating only) and ceiling system (cooling
only).
The ceiling system is based on plasterboard, the floor system is a
common screed based system. The thermal masses of floor and
ceiling system are very different. Because of this, the response time of
the ceiling system is much faster. This is taken into consideration
through the different pulse width cycle times for each system: default
value for floor system is 20 minutes, for ceiling system 10 minutes.
For each system, a separate channel on the Base or the
R-Module is required to ensure:
- the valve actuators can be connected directly to the output of
the Base without using any additional relays to switch the
output signal
- the heating / cooling systems are supplied according to their
respective requirements
With NEA SMART 2.0 it is possible to assign a single room unit
to multiple channels across a base station and any directly
connected R-Module. Each channel can then be assigned to a
different system.
It is not possible to assign a Room Unit or Room Probe to more
than one Base and the directly connected R-Module..

4.6.12 Geofencing

Geofencing is a smart option of the NEA SMART 2.0 App to allow
automatic reduction of energy use when the user is a minimum
distance away from home.
The method is based on an evaluation of the geographical position
and movement of the user, calculating the expected earliest time of
return.
The function can be enabled individually for each smart device the
NEA SMART 2.0 App is running on.
The default setting for this function is "disabled".
Activation of the energy saving reduced set point is only applicable to
rooms which are operating in TIMER mode.
The decrease in set point is limited to ensure the normal set point
temperature can be reached again in time for the occupants return.
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