Schneider Electric MicroNet BACnet VAV Controllers Specifications
TAC I/A Series
MicroNet BACnet VAV Controllers
MicroNet BACnet VAV Controllers MNB-Vx
The TAC I/A Series™ MicroNet™ BACnet™
VAV (Variable Air Volume) Controllers are
interoperable controllers with native BACnet MS/TP
communications support. All models incorporate: an
integral actuator with manual override; an integral,
patented, pressure transducer; three universal inputs;
Sensor Link (S-Link) support; LED status indication;
and over-the-shaft damper mounting. See the model
chart for optional features.
When programmed using WorkPlace Tech Tool, the
controllers provide a wide range of control strategies
for pressure-dependent and pressure-independent
terminal boxes with or without reheat capabilities.
The MicroNet BACnet VAV controllers can function
SPECIFICATIONS
HARDWARE
Dimensions
7-3/4 H x 6-1/4 W x 2-1/2 D in (197 x 159 x 63 mm).
Enclosure
Cover meets UL 94-5VA flammability ratings for
plenum application use.
Optional enclosure for conduit applications, conforms
to NEMA-1.
Mounting
Shaft mount.
Power Supply Input
20.4 to 30 Vac, 50/60 Hz.
Power Consumption
15 VA at 24 Vac plus DO loads.
AGENCY LISTINGS
US
FCC Part 15, Class A.
UL 916, File #E71385 Category PAZX
UL 864, Category UUKL, File #S5381 Smoke-Control
Equipment
Canadian
UL Listed to Canadian Safety Standards (CAN/CSA
22.2).
CUL Listed to Standards
ULC/ORD-C100-92 (Smoke Control System
Equipment) and CAN-ULC-S527 (Control Units for
Fire Alarm Systems)
Australian
Meets requirements to bear the C-Tick Mark.
BTL Listed
B-ASC
European Community
EMC Directive 89/336/EEC, EN61326
either in a standalone mode or as part of a BACnet
building automation system (BAS) network.
AMBIENT LIMITS
Operating Temperature
32 to 131 °F (0 to 55 °C).
Shipping and Storage Temperature
-40 to 160 °F (-40 to 71 °C).
Humidity
5 to 95% non-condensing.
WIRING TERMINALS)
Fixed Screw Terminals
Single AWG #14 (2.08 mm
#18 (0.823 mm
VELOCITY PRESSURE INPUT
Control Range
0.004 to 1.5 in. of W.C.
Over Pressure Withstand
±20 in. of W.C.
Accuracy
±5% at 1.00 in. of W.C. with laminar flow at 77 °F (25
°C) and suitable flow station.
Sensor Type
Self-calibrating flow sensor (differential pressure).
Tubing Connections
Barb fittings for 0.170 in. I.D. FRPE polyethylene
tubing or 1/4” O.D./0.125” I.D. Tygon® tubing (high
and low pressure taps).
Continued on next page.
2
) or smaller wires.
2
) wire or up to two AWG
1
TAC I/A Series
MNB-Vx Controllers
2
Continued from first page.
Tubing Length
5 ft. (1.52 m) maximum, each tube.
INPUTS FROM MN-SX MICRONET SENSOR
Space Temperature
32 to 122 °F (0 to 50 °C).
Space Humidity
5 to 95% RH, non-condensing.
Local Setpoint
Adjustable within limits set by application
programming tool.
Override Pushbutton
For standalone occupancy control or occupancy
override.
Fan Operation and Speed Mode
On/off, speed (low/medium/high), or auto.
System Mode
Heat, cool, off, or auto.
Emergency Heat
Enable or disable.
UNIVERSAL INPUTS (3)
Universal Input characteristics are softwareconfigured to respond to one of the following input
types:
10 k ohm Thermistor with 11 k ohm Shunt
Resistor
Sensor operating range -40 to 250 °F (-40 to
121 °C), model TSMN-57011-850, TS-5700-850
series, or equivalent.
1 k ohm Balco
-40 to 250 °F (-40 to 121 °C), model TSMN-81011,
TS-8000 series, or equivalent.
1 k ohm Platinum
-40 to 240 °F (-40 to 116 °C), model TSMN-58011,
TS-5800 series, or equivalent.
1 k ohm Resistive
0 to 1500 ohms.
10 k ohm Resistive
0 to 10.5 k ohms.
Analog Voltage
Range 0 to 5 Vdc.
Analog Current
Range 0 to 20 mA, requires external 250 ohm shunt
resistor (AD-8969-202).
Digital
Dry switched contact; detection of closed switch
requires less than 300 ohms resistance; detection of
open switch requires more than 2.5 k ohms.
Standard Pulse Input
Minimum Rate
1 pulse per 4 minutes.
Maximum Rate
1 pulse per second.
ACTUATOR OUTPUTS
Torque Rating
53 lb-in. (6 N-m).
Stroke
Fully adjustable from 0° to 90°.
Timing
Approximately 3 minutes at 60 Hz (3.6 minutes at
50 Hz) for 90° rotation at 24 Vac.
Position Indication
Provides a visual indication of position.
Manual Override
Pushbutton to allow manual positioning of the
damper.
Damper Linkage
1/2 in. (12.75 mm) or 3/8 in. (9.5 mm) diameter round
shaft extending 7/8 in. (22.23 mm) minimum from
terminal box. 3/8 in. (9.5 mm) diameter shaft requires
AM-135 adapter kit.
DIGITAL OUTPUTS – TRIAC
DO1 plus DO2 Rating
24 VA total at 24 Vac, 50/60 Hz, high side switching.
DO3 Rating
12 VA at 24 Vac, 50/60 Hz, high side switching.
UNIVERSAL OUTPUT
0 to 20 mA
Output load from 80 to 550 ohms.
0 to 10 V
With external 500 ohms, 1/2 W, 1% resistor.
Capable of Driving Functional Devices RIBUI1C
Relay
UO configured for 0 to 20 mAdc, no external resistor.
MODELS
Part Number Description
MNB-V1 Cooling only 3 — —
MNB-V2 Deluxe 3 1 3
Schneider Electric
F-27340-4
Inputs and Outputs
UI UO DO (Triac)
© 2009 Schneider Electric. All rights reserved.
September 200 9 tl
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