Overview and specifications
Zone Ctrl II and
VAV Zone II Secondary Duct Installation and Start-up Guide
CARRIER CORPORATION ©2019
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Zone Ctrl II specifications
Driver
drv_b3popn02
Maximum number of control
programs*
1
Maximum number of
BACnet objects*
300
* Depends on available memory
Power
24 Vac ±10%, 50–60 Hz
14 VA power consumption
26 Vdc (25 V min, 30 V max)
Single Class 2 source only, 100 VA or less
Actuator
Belimo brushless DC motor, torque 45 inch-pounds (5 Nm), runtime 154 seconds
Act Net port
To connect the actuator cable and the VAV Zone II Secondary Duct
BACnet port
For communication with the controller network using ARC156 or MS/TP (9600
bps–76.8 kbps)
Rnet port
•
Supports up to 5 wireless and/or ZS sensors, and one Equipment Touch or
TruVu™ ET Display.
•
Supplies 12 Vdc/200 mA power to the Rnet at an ambient temperature of
77°F (25°C) with a 24 Vac nominal power source.
NOTE Ambient temperature and power source fluctuations may reduce the
power supplied by the Rnet port.
NOTE
If the total power required by the sensors on the Rnet exceeds the power
supplied by the Rnet port, use an external power source. The Wireless Adapter,
Equipment Touch, or TruVu™ ET Display must be powered by an external power
source. See the specifications in each device's Installation and Start-up Guide to
determine the power required.
Local Access port
For system start-up and troubleshooting
Inputs
4 inputs configurable for thermistor or dry contact. Inputs 1 and 2 are also
configurable for 0–5 Vdc.
Input resolution
10 bit A/D
Input pulse frequency
10 pulses per second. Minimum pulse width (on or off time) required for each
pulse is 50 msec.
Binary outputs
3 binary outputs, relay contact rated at 1 A max. @ 24 Vac/Vdc. Configured
normally open.
Analog output
1 analog output, 0–10 Vdc (5 mA max)
Output resolution
8 bit D/A
Integral airflow sensor
Precision differential pressure sensor 0–2 in. H2O, sensitive down to ±0.001 in.
H2O. Barbed tapered airflow connections accept 3/16 in. (4.75 mm) I.D. tubing.
Allows for readings across the 0–2 in. H2O range, accurate to ±5% of full flow at 2
in. H2O.
Microprocessor
High speed 16-bit microprocessor with ARCNET communication co-processor