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51
Zone Controllers
L
ON
M
ARK
®
certified individual room controllers for VAV applications (Variable
Air Volume) connected to an external air flow controller (Belimo VAV Com-
pact). The controller keeps a constant temperature in the zone by controlling
the air flow, optional heating stages, and fan in sequence. By using a carbon
dioxide sensor, the air quality can be controlled in the zone. The controller
can be operated stand-alone or within a L
ON
W
ORKS
®
network. PI control with
individual P-band and I-time setting for heating and cooling. Can be moni-
tored and parameters can be set centrally via the central system or remotely
with the TAC Xenta L
ON
W
ORKS
®
Operator Panel.
FUNCTIONAL FEATURES
•
Various applications:
Single-step control with
setpoint calculation of an
external air flow controller.
Two-step setting with cooling
and heating in sequence.
Heating operation via an
electric reheater or hot water.
•
Slave function mode of
operation and setpoint for
several slave controllers are
controlled by one master.
•
Setpoint adjustment via a wall
module with setpoint adjuster
or via a L
ON
W
ORKS
®
network
variable.
•
Seven modes of operation:
comfort, standby, bypass,
unoccupied, off, slave and
purge mode.
•
Air quality based adjustments.
•
Configurable limit values MIN
and MAX air flow limit.
•
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 ±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
Air damper . . . . . . . . . . . . . . . . . . . . . . 0 – 10 VDC
Heating valve . . . . . . . . . . . . . . . . . . . . 2-point output
(102-EF); 0 - 10 VDC (102-VF)
Room temperature . . . . . . . . . . . . . . . . Thermistor input
Air flow . . . . . . . . . . . . . . . . . . . . . . . . 0 – 10 VDC
CO
2
sensor . . . . . . . . . . . . . . . . . . . . . . 0 – 10 VDC
Wall module. . . . . . . . . . . . . . . . . . . . . As selected
For further specifications, see technical data sheet.
DESCRIPTION
0-073-0531-0 TAC Xenta 102-B VAV Controller
0-073-0533-0 TAC Xenta 102-EF VAV Controller electrical reheat
0-073-0535-0 TAC Xenta 102-VF VAV Controller valve reheat
TAC Xenta 102-B, 102-EF,
102-VF VAV Controllers