Mounting / Installation; Mechanical Design - Ait Rfv Split Montageanweisung

MAV 1350-1
RFV SPLIT
231891
General
ROOM SENSOR RFV SPLIT is used together with SPLIT
indoor unit with integrated tank / SPLIT indoor unit without
integrated tank.
The room sensor can correct the temperature to radiators,
floor loops or fan convectors depending on the increased
indoor temperature in connection with solar incident
radiation, heating from another heat source or increased
indoor activity.
The room sensor can also quickly correct the temperature
in connection with the reconnection of disconnected po-
wer output, for example, centralised load control.
The room sensor must be positioned with care to work
correctly, see the Installation section.
Mounting & Installation
It is important that the room sensor is not disturbed by any
other heat source, for example, lamps, TV or other warm
objects. Curtains should not block the sensor.
Install in a neutral position where the set temperature
is required. A suitable place is on a free inner wall in a
hall approx. 1.5 m above the floor. However, the sensor
must not be prevented from measuring the correct indoor
temperature, for example, by placing in a niche, between
shelves, behind a curtain, above or close to a heat source
or the like. Also consider any draughts from exterior doors.
Neither must the unit be affected by solar incident radia-
tion.
The conduit should be sealed next to the sensor to prevent
a draught in the pipe, which could affect the sensor.
INSTALLATION INSTRUCTIONS
RFV SPLIT
Setting
This room sensor measures the temperature in homes and
regulates the heat to the heating/cooling system.
If there are thermostat valves on the radiators in the same
room as the room sensor these should be fully open in
order for the room sensor to work correctly.
However, radiator valves in areas such as bedrooms, where
a slightly lower temperature is required, should be set to
the required temperature.
The required temperature can be set using the knob on
the room sensor unit. The scale is graduated 1 – 9, where
5 equals approximately 21 °C (house type relevant setting
of curve slope and parallel displacement). Reading the set
temperature can be done on the display screen on the ap-
paratus. The maximum room temperature setting is 30 °C
and the lowest setting is approximately 15 °C.*
If the room temperature changes the room sensor senses
this and compensates the flow temperature to the radia-
tors to maintain the required temperature in the room. The
reason for the lower temperature can be intensive airing
or disconnection of the power during specific periods, i.e.
centralised load control. Centralised load control is desig-
ned to save and redistribute electrical power during peri-
ods when power consumption is high and means that the
immersion heaters in heating installations do not get the
necessary power to maintain a specific room temperature.
Under normal conditions the room temperature does not
change that much.

Mechanical design

Room temperature sensor RFV SPLIT is intended for wall
mounting. Installation can either be surface mounted or
using recessed connection boxes. The connection cable
can be either recessed or surface mounted. It should be a
screened three wire cable, where the screen is connected
to the signal ground.
The enclosure is manufactured of plastic and consists of a
bottom section with terminal blocks and components for
setting and measuring the room temperature and a knob
to set the required temperature.
The temperature sensing element is made up of an NTC-
resistor.
* 10 °C for SPLIT indoor unit with integrated tank / SPLIT
indoor unit without integrated tank.
GB