ROTOTERM MR-TR
6
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MOUNTING OF SENSORS
MOUNTING OF OUTSIDE AIR SENSOR AF 2000
Fix the sensor to the north side wall (or shady side) of the building at least 1.5 m
from the un der floor and from all possible heat sources (win dow, door, ventilating
channels, stacks, direct sunlight, above the win dows…)
Connect the sensor cable to the terminal pins 1 and 2 in the au to matics connection
box.
MOUNTING OF CLAMP-ON SENSOR VF 2000 - to the mixed flow line
Mount the sensor at least 20 cm above the mixing valve before or after the pump, as close-fit
sensor on the mixed flow hose under the iso lation or as immersion sensor in the cap.
Be careful not to let the sensor cable to touch the hot pipes (use proper isolation). Provide good
contact with the heating water line and apply thermal isolation. Connect it to terminal pins 3 and
4 in the controller connection box.
MOUNTING OF FLOOR SENSOR VF 2000 - for under floor heating only
Mount the sensor into flexible hose as close to the com po sition under floor surface as possible,
somewhere in the middle of the feeding and returning conduit.
Do not place it under thick carpet or furniture.
Be careful not to let the sensor cable to touch the hot pipes (use proper isolation) and apply
thermal isolation. Connect it to ter mi nal pins 7 and 8 in the controller connection box.
If you don’t install the sensor,
the terminal pins 7 and 8 should be connected to 2 k
W
resistance and parameter [t] set to value 35
(see setting of tem pera ture limits for under floor - parameter [t]). In that case you don’t have protection against floor overheating.
MOUNTING OF BOILER SENSOR KF 2000 - for radiator heating only
Mount the sensor into the cap next to the other boiler sensors. In case of 4-way mixing valve it
can also be mounted as close-fit sensor to the heating water line after the furnace out put.
If you don’t install the sensor
, the terminal pins 7 and 8 should be connected to 2,9k and
parameter [t] set to value 30 (see setting of temperature limits for under floor - pa ram eter [t]).
In that case you don’t have protection against boiler condensation.
Use the enclosed bolts and mount the room unit to the wall. The unit shall be fixed at least 1.5 m above the floor and at least 1m
away from all heating sources (radiator, sun influences, fire places, ...
).
ASSEMBLY OF ROOM UNIT AS 2000-E
(ROTOTERM MR-TR “plus” only)
If the room unit AS 2000-E is used as remote temperature corrector (correction of heating curve) is installation is not important
because the unit operates independently of the ambient temperature.
This happens in cases where in the
existing space are used additional
sources of heating - fireplace. In this case
side switch for selecting operation (see
description of the room unit AS2000-E)
shifted to the OFF position (factory set
to ON). This will enable heating of other
room in the building by heating curve.
WARNING!
In this position, a switch (5) in position
“ ” does not provide protection
against frost (room temperature
8-10°C), but the function of full-OFF
operation - unconditionally closes the
mixing valve.
When an additional heating source is no longer active, switch (14) moves back to ON, which provides us with a constant temperature
in the room.
Some examples of incorrect installation
Heating
source
Chimney
Gas
boiler
