ROTOTERM MR-TR
2
www.first.si
The ROTOTERM MR-TR heating controller is a 3-port PID
controller used for under floor or radiator heating. Via its outputs
it controls the motor actuator for mixing valve and circulation
pump.
Basically it controls the temperature of mixed flow in dependence
on exterior tem pera ture, deviation of the required and actual
room temperature and parameters set.
The controller operates according to nonlinear heating curves,
which enables correct heating even with higher exterior
temperatures. Setting of the curve ratio is possible also from
0,1 do 2 in resolution per 0,1 (20 curves). Parallel shift of the
curve enable settings within the limits from -10 to +10, which
means, that the starting points of the curves can be moved by
+/- 10°C.
By means of the three digit display and the three keys it is possible
to set all the parameters and to control all the temperatures. The
display also shows all errors of the sensors (disconnection “Er1”
and short circuit “Er2”).
The design of controller allows also operation without room unit
AS2000-E - operating regarding selected heating curve. This is
especially useful for under floor heating, where night reductions
do not present any advantage, due to the system inertia.
When the controller switches over to under floor operating mode,
it automatically assumes individual limits: temperature of the
mixed flow is 50°C, setting of heating curve ratio is possible
only from 0.1 - 1 and influence of the room units is possible only
between 0 and 5. The under floor sensor of the controller prevents
the under floor to get too hot, thus prevents the unpleasant feeling
of warmth in your feet.
When used with radiator version, the sensor is located into the
boiler in order to prevent condensation or overheating of the
boiler. In case the boiler temperature falls bellow the condensing
temperature, the controller momentarily chokes the mixing
valve, thus reducing the consumption and assuring quick and
easy heating of the boiler to the required temperature. If for
any reasons the temperature of the boiler exceeds 95°C, the
controller opens the mixing valve, speeds up the consumption
and prevents overheating of the boiler and cut-off of the thermal
breaker.
The controller automatically activates the pump, immediately
when heating is re quired and switches it off when the heating
water line is cooled down bellow the set temperature. This
temperature can be adjusted within the range of 20°C to 45°C.
When switched on, the display of the ROTOTERM MR-TR
controller illuminates and shows the tests of sensor, pump and
mixing valve operation. After some 5 seconds the controller starts
with normal operation.
TECHNICAL DATA
Supply voltage ...........................................................................................................................................................230V , 50Hz
Power consumption ............................................................................................................................................................max. 4VA
Relay outputs...................................................................................................................................................1(1)A, 230V , 50Hz
Power consumption ....................................................................................................................................................................4VA
Humidity: .............................................................................................................................................5% - 70% (without condense)
Storage temperature: .........................................................................................................................................................0°C-70°C
Mounting: .........................................................................................................................................................................on the wall
Recommended cable use: ..............................................................................................................sensor cable: J-Y (St) 1X 2X0,6
.............................................................................................................................................Pump, actuator cable: H03VV-F 3x0,75
Sensor type ................................................................................................................................................................PTC KTY 10-6
Temperature measuring range ....................................................................................................................................-40°C...160°C
Room temperature setting ................................................................................................................................................5°C...25°C
Program settings:
Heating curve ratio setting .......................................................................................................................................................0,1...2
Parallel shift ..........................................................................................................................................................................+/- 10°C
Room unit influence
..................................................................................................................................................................1...15
Controller type .............................................................................................................................................................................PID
Floor temperature limit....................................................................................................................................................15°C...35°C
Summer periodic run of pump and mixing valve ........................................................................................... every 72 hours for 30s
Connection mode ..........................................................................................................................................................terminal pins
Parameters selection mode .......................................................................................................................................................keys
Parameters ...................................................................................................................................................... factory built-in values
Dimension of sensors:
l
l=1,5m sensor BSF1, PVC (grey cable)
l=2m
sensor KF, silicon (red cable)
CONTROLLER ROTOTERM MR-TR OPERATION