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ABB i-bus® KNX
Heating, Ventilation and Air Conditioning

Fan Coil Controller, 2 x PWM, 0-10 V, MDRC
For the control of fan coil units. Via two electronic outputs, two thermoelectric or one mo-
tor-driven valve drive can be controlled for heating and cooling. For the fan control the de-
vices features an analog output for the control of a continues fan. A relay output switches an
additional load of up to 16 A, such as auxiliary heating. Over 4 inputs the room status can be
detected and monitored (Use for window contact, dew point sensor, level sensor or tem-
perature sensor). Also it is possible to connect one analog room control unit (SAR/A or
FCC/S 1.5.2.1 SAF/A) to the inputs of the device. The device has an integrated room temperature controller
for the control of the room temperature, which can be used directly to control the outputs of
the device. The FCC/S 1.5.2.1 features an easy to use manual operation.
Both devices support the ABB i-bus® Tool for advanced diagnosis and improved commis-
sioning.

Description Mod. Order details Price Weight Pack
width 1 piece 1 piece unit
Type code Order code kg pc.
6 FCC/S 1.5.1.1 2CDG110234R0011 0.21 1
Manual operation 6 FCC/S 1.5.2.1 2CDG110235R0011 0.215 1

Blower Actuator, 6 A, MDRC
to control blowers or fans with up to three fan speeds via step or changeover control.
The FCL/S 1.6.1.1 have one fan output and one additional floating switch output. The
FCL/S 2.6.1.1 feature two fan outputs plus two floating switch outputs. Alternatively the sec-
ond fan output can be used as three switch outputs.
The fan speed can be directly choosen, increased and decreased as well as controlled by the
FCL/S 2.6.1.1 control value of a closed-loop controller.

Description Mod. Order details Price Weight Pack
width 1 piece 1 piece unit
Type code Order code kg pc. 14
1-fold 4 FCL/S 1.6.1.1 2CDG110163R0011 0.18 1
2-fold 6 FCL/S 2.6.1.1 2CDG110164R0011 0.26 1

ABB Caldion® NEW
ABB Caldion® Room Temperature Controller for fan coil units with 2 pipe, 2 pipe with electric
heater or 4 pipe system, Flush Mounted, BS standard. Available for standalone function or as
KNX device with integrated bus coupling unit. Build in temperature sensor, 2 x binary input
for window, dewpoint, condensate alarm. Integrated actuator output control for ON/Off or
0-10 V Valve and 3 x fan speed control. Dedicated capacitive touch RTC control button for in-
CAR/U 4.1.1.1-71 tuitive control, mode operation and frameless design with large display.
Only available on the Chinese market.

Description Mod. Order details Price Weight Pack
width 1 piece 1 piece unit
Type code Order code kg pc.
Black – CAR/U4.1.1.1-71 2TAZ740010R2001 0.272 1
Black – CAR/U4.2.1.1-71 2TAZ741010R2001 0.272 1
White – CAR/U4.1.1.1-84 2TAZ740010R0001 0.272 1
White – CAR/U4.2.1.1-84 2TAZ741010R0001 0.272 1