MECHANICAL CLAMP
STOP ASSEMBLY
Assembled in USA wal(
by Belimo for
CARRIER @ Override
35 in-lb (4 Nm)
80..110s
24VAC/DC
50/60Hz
3VA 2W
/
WIRING
KNOCKOUTS
/
ACTUATOR MANUAL OVERRIDE
SWITCH
/
MOTHERB©ARD
ACCESS
Fig. 2 -- Zone Controller
WIRING
ACCESS
SUPPLY AIR TEMPERATURE (SAT) SENSOR -- The
33ZCSENSAT supply air temperature sensor is required for
reheat applications or stand-alone operation. The sensor has an
operating range of -40 to 245 F (-40 to 118 C) and includes a
6-in. sttfinless steel probe and cable.
DUCT AIR TEMPERATURE SENSOR -- The 33ZCSENDAT
Duct Air Temperature Sensor is required for cooling only appli-
cations on non-33CS or non-Career dmnpet_. The sensor is used
for supply tilt monitoring. The sensor has an operating range of
_40 to 245 F (-40 to 118 C) and includes a mounting grommet
and 75-in. cable.
RELATIVE HUMIDITY SENSOR --The 33AMSENRHS000
relative humidity sensor is required for zone humidity control
(dehumidification) when in a linked system with a rooftop unit
equipped with a dehumidification device. Othet-wise, the RH
sensor is used for monitoring only.
NOTE: The relative humidity sensor and CO 2 sensor cannot be
used on the same zone controllet:
INDOOR AIR QUALITY (CO2) SENSOR -- An indoor fur
quality sensor is required for optional demand control
ventilation. The 33ZCSENCO2 CO 2 sensor is an indoor, wall
mounted sensor with an LED display. The 33ZCT55CO2 and
33ZCT56CO2 CO 2 sensors tue indoor, wall-mounted sensors
without display.
NOTE: The relative humidity sensor and CO 2 sensor cannot be
used on the same zone controllet:
Mount Zone Controller (Retrofit Applica-
tions) -- The zone controller is factory-tnounted on Cturier
round and rectangular dampers. When retrofitting a zone
controller on an existing dmnper, perform the following
procedures.
LOCATION -- The zone controller must be mounted on the
air temfinal's damper actuator shaft. For service access, there
should be at least 12 in. of clearance between the front of the
zone controller and adjacent surfaces. Refer to Fig. 3.
MOUNTING- Perform the following steps to mount the
zone control let:
1. When retrofitting a zone controller on an existing
damper, prior to inst_dling the zone controllet: remove all
existing hardware.
2. Round or rectangular &_mper brackets may be attached to
the dmnper to provide a cle_uance for the &Lmper be_uing
when the zone controller is inst_dled on older style VVT®
dmnpers. The zone controller is used to determine the
location of the bracket. Attach the bracket to the zone con-
troller using a single screw through the anti-rotation tab.
3. Visually inspect the &_mper and determine the direction
in which the &tmper shaft moves to open the &_mper-
clockwise (CW) or counterclockwise (CCW). Refer to
Fig. 4.
If the &_mper rotates CCW to open, it does not require
any configuration changes.
If the dmnper rotates CW to open, then the &_mper
actuator logic must be reversed. This is done in the
software when performing system st_ut-up and damper
calibration test. Do not attempt to change &tmper rotation
by changing wiring. This will upset the dmnper position
feedback potentiometer readings.
4. Rotate the damper shaft to the fully closed position. Note
direction of rotation.
5. Press the release button on the actuator and rotate the
clamp in the same direction that was required to close the
damper in Step 4.
6. Press the release button on the actuator and rotate the
actuator back one position graduation. Release the button
and lock the actuator in this position.
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