Honeywell WEB-VA423B24N - Specifications; Universal Inputs (UI) Circuits

COMPACT VAV CONTROLLER WEB-VA423B24N – INSTALLATION INSTRUCTIONS
3 31-00362-01
SPECIFICATIONS
General
For a complete list of all terminals and their
description of their functions, see Table 4 on pg.4.
NOTE:
All terminal blocks capable of carrying either
low voltage or line voltage are orange-colored.
The product package includes a plastic bag
containing additional, removable terminal blocks.
Power Supply Terminals
Power is supplied to the controller via a removable
terminal plug (Color coded grey, terminal 1 and 2).
CAUTION
Do not mix-up power terminal block
(terminal 1 to 3, Grey color) with
BACnet MS/TP terminal block (terminal
4 to 6, black color) located adjacent to
each other. Interchanging the terminals
will damage the controller.
See also section "Power supply" on pg. 9
Power Supply
20-30 VAC at 50/60 Hz, Class 2
transformer
Power
Consumption
• Controller with all
connected loads: 100 VA
maximum
• Controller only: 20 VA
maximum
Auxiliary
Output
20 VDC ± 10% at 75 mA
Ambient Environmental Limits
Storage
-40 °F to 150 °F (-40 °C to 66 °C)
Operation
32 °F to 122 °F (0 °C to 50 °C)
Humidity
5% to 95% RH., non-condensing
Differential Pressure Sensor
Bi-Directional
Operating Range: 0 to 2.0 in. H
2
O (0 to 500 Pa).
Actuator Specifications
Rotation Stroke
95° ± 3° for CW or CCW
opening dampers
Torque Rating
44 in-lbs (5 Nm)
Runtime for 90°
rotation
108 seconds at 50 Hz
90 seconds at 60 Hz
Real Time Clock
Operating Range: 24 hour, 365 day, multi-year
calendar including day of week and configuration
for automatic daylight savings time adjustment to
occur at 2:00 a.m. local time on configured start
and stop dates.
Power Failure Backup: 72 hours.
Accuracy: ±3.5 minute per month at 77 °F (25 °C)
Digital Relay Outputs (DO)
Voltage Rating: 24 VAC at 50/60Hz
Current Rating: 1.5 A continuous, and 3.5 A (AC
RMS) for 100 milliseconds per DO channel.
Analog outputs (AO)
Analog outputs can be individually configured for
current or voltage.
Analog Current Outputs
Current Output Range: 4.0 to 20.0 mA DC
Output Load Resistance: 550 Ω maximum
Analog Voltage Outputs
Voltage Output Range: 0.0 to 10.0 VDC
Maximum Output Current: 10.0 mA DC
Universal Inputs (UI) Circuits
See table below for the UI circuit specifications.
Table 3: Universal inputs types and characteristics
Input Type
Sensor
Type
Operating Range
Room/Zone
Discharge Air
Outdoor Air
Temperature
20k Ω NTC
-40 °F to 199 °F
(-40 °C to 93 °C)
Outdoor Air
Temperature
PT1000
(IEC751
3850)
-40 °F to 199 °F
(-40 °C to 93 °C)
Resistive
Input
Generic
100 Ω to 100K Ω
Voltage Input
Transducer
Controller
0-10 VDC
Discrete Input
Dry Contact
Closure
0-10 VDC without
pull-up resistor,
External 499 Ω
resistor required to
measure 0-20 mA
Pulse Input
a
Counter/M
eter
Maximum
Frequency: 15 Hz
Minimum Pulse
Width: 33 ms.
a
One Universal Input (UI-1) on the WEB-
VA423B24N is user selectable as a fast digital
pulse meter.