Schneider Electric MNB-70 Specifications
TAC I/A Series
MNB-70 BACnet Zone Controller
BACnet Zone Controller
®
MicroNet BACnet Zone
2
2
) or smaller wires.
) wire or up to two AWG
SPECIFICATIONS
HARDWARE
Dimensions
3-5/8 H x 5 W x 1-19/32 D in
(92 x 127 x 41 mm).
Enclosure
Conforms to NEMA-1. Meets UL 94-5VA flammability
ratings for plenum application use.
Mounting
Panel 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
UL 916, File #E71385 Category PAZX FCC Part 15,
Class A.
Canadian
UL Listed to Canadian Safety Standards
(CAN/CSA 22.2).
Australian
Meets requirements to bear the C-Tick Mark.
BTL Listing
B-ASC
European Community
EMC Directive 89/336/EEC
EN61326
The TAC I/A Series
Controller is an interoperable controller with native
BACnet MS/TP communications support. The
controller features: three universal inputs; three digital
(Triac) outputs; one universal output; Sensor Link
(S-Link) support; LED status indication; and an
“I-Am” button.
When programmed using WorkPlace Tech Tool, the
Zone Controller provides a wide range of control
strategies for applications such as unit heaters,
cabinet heaters, fan coil units, small unit ventilators,
heat pumps, and single/dual loop control strategies.
The MicroNet BACnet Zone Controller can function
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
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.
Specifications continued on next page.
1
TAC I/A Series
MNB-70 BACnet Zone Controller
2
2
Specifications continued from first page.
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), TAC model TSMN-57011-850,
TS-5700-850 series, or equivalent.
1 k ohm Balco
-40 to 250 °F (-40 to 121 °C), TAC model TSMN81011, TS-8000 series, or equivalent.
1 k ohm Platinum
-40 to 240 °F (-40 to 116 °C), TAC model TSMN58011, 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.
DIGITAL OUTPUTS – TRIAC (3)
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 (1)
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.
MODEL
Model
MN B -70 3 1 3
Inputs and Outputs
UI UO DO (Triac)
OPTIONS
MNA-FLO -1
S-Link Sensors
TSMN Series
Schneider Electric
F-27455-4
TAC MicroNet enclosure, used if wiring to flexible conduit
is required
Temperature and humidity wall sensors with digital
communication
Room temperature sensors
© 2012 Schneider Electric. All rights reserved.
May 2012 ptm
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