50 / 102
L
ON
M
ARK
®
certified individual room controllers for fan coil systems with heat-
ing and/or cooling. The heating/cooling switch can be centrally controlled,
or controlled via the average temperature. Incoming air and room tempera-
ture can be controlled in sequence. Fans are controlled continuously, 3-speed
or on-off depending on the fan coil controller type. The controller can be
operated in a stand-alone system or within a L
ON
W
ORKS
®
network.
PI control with individual P-band and I-time settings for heating and cooling
can be set. Values can be monitored and parameters can be set centrally via
the central system or remotely with the TAC Xenta Operator Panel.
FUNCTIONAL FEATURES
•
Various applications:
Single-step control with
cooling, heating or changeover
operation for cooling/heating.
Two-step control with cooling
and heating in sequence. Fan
control via 3-step relays, on/off
or speed control.
•
Slave function mode of
operation and setpoint for
several slave controllers are
controlled by one master
controller.
•
Setpoint adjustment via a wall
module with setpoint adjuster,
or via a L
ON
W
ORKS
®
network
variable.
•
Seven types of operation:
comfort, stand-by, bypass,
unoccupied, off, slave, fan
only.
•
Several fan operation modes.
•
Min and Max values limit air
flow.
•
Alarm monitoring high or
low room temperature, open
window, temperature sensor
error etc.
•
Occupancy sensor, window
contact and cool-down
protection, CO
2
measurement
input.
SPECIFICATIONS
Operating voltage . . . . . . . . . . . . . 24 V AC or 230 V AC ±20%
Power consumption . . . . . . . . . . . . 4 VA
Dimensions . . . . . . . . . . . . . . . . . . . 127 x 126 x 50mm (5” x 5” x 2”)
Ambient temperature
Operation . . . . . . . . . . . . . . . . . . . . 0°C to +50°C (32°F to 122°F)
Storage . . . . . . . . . . . . . . . . . . . . . . –20°C to +50°C (–4°F to 122°F)
Humidity . . . . . . . . . . . . . . . . . . . . . max. 90% RH non-condensing
Enclosure rating . . . . . . . . . . . . . . . . IP 30
Inputs and outputs
Window contact . . . . . . . . . . . . . . . Digital input
Occupancy sensor . . . . . . . . . . . . . Digital input
Cooling valve. . . . . . . . . . . . . . . . . . 3-point, on/off or PWM control
Heating valve . . . . . . . . . . . . . . . . . 3-point, on/off or PWM control
Fan . . . . . . . . . . . . . . . . . . . . . . . . . 3-step (250 V / 3 A) 101-VF
Room temperature . . . . . . . . . . . . . Thermistor input
Inlet air temperature . . . . . . . . . . . . Thermistor input
Wall module . . . . . . . . . . . . . . . . . . As selected
For further specifications, see technical data sheet.
TAC Xenta 101-VF
Fan Coil Unit Controller
DESCRIPTION
0-073-0505-0 TAC Xenta 101-VF/24 Fan Coil Unit heating/cooling, Fan 3 steps
0-073-0507-0 TAC Xenta 101-VF/230 Fan Coil Unit heating/cooling, Fan 3 steps
50