Johnson Controls NS-DTN7043-2 User manual

NS Series Network Discharge Air Sensors Installation Instructions
1
Applications
The NS Series Network Discharge Air Sensors are
electronic duct sensors designed to function directly
with Johnson Controls® digital controllers in HVAC
systems. Models in this series monitor the duct
temperature, typically at the discharge of the Variable
Air Volume (VAV) box, and transmit this data to the
controller Sensor Actuator (SA) Bus using the
305 cm (10 ft) wiring lead included with the unit. The
305 cm (10 ft) wiring lead consists of four
0.6 mm (22 AWG) diameter color-coded wires encased
in a plenum-rated jacket. Each of the wires is stripped
and tinned for easy connection to the SA Bus screw
terminal block.
The NS Series Network Discharge Air Sensors are
available with either a 102 or 203 mm (4 or 8 in.)
temperature probe. All models include DIP switches for
applications requiring multiple discharge air sensors,
each with a unique DIP switch address.
IMPORTANT: The NS Series Network Discharge
Air Sensors are intended to provide an input to
equipment under normal operating conditions.
Where failure or malfunction of the discharge air
sensors could lead to personal injury or property
damage to the controlled equipment or other
property, additional precautions must be designed
into the control system. Incorporate and maintain
other devices, such as supervisory or alarm systems
or safety or limit controls, intended to warn of or
protect against failure or malfunction of the
discharge air sensors.
IMPORTANT : Le NS Series Network Discharge Air
Sensors est destiné à transmettre des données
entrantes à un équipement dans des conditions
normales de fonctionnement. Lorsqu'une défaillance
ou un dysfonctionnement du discharge air sensors
risque de provoquer des blessures ou
d'endommager l'équipement contrôlé ou un autre
équipement, la conception du système de contrôle
doit intégrer des dispositifs de protection
supplémentaires. Veiller dans ce cas à intégrer de
façon permanente d'autres dispositifs, tels que des
systèmes de supervision ou d'alarme, ou des
dispositifs de sécurité ou de limitation, ayant une
fonction d'avertissement ou de protection en cas de
défaillance ou de dysfonctionnement du discharge
air sensors.
NS Series Network Discharge Air Sensors
Installation Instructions
NS-DTN7043-0, NS-DTN7043-2,
NS-DTN7083-0, NS-DTN7083-2 Part No. 24-10336-0, Rev. H
Issued February 2016
24-10336-0, Rev. H

NS Series Network Discharge Air Sensors Installation Instructions
2
North American Emissions Compliance
United States
Canada
Mounting
The following ambient operating conditions apply:
• Temperature: -10 to 60°C (14 to 140°F)
• Humidity: 10 to 90% Relative Humidity (RH),
noncondensing; 29°C (85°F) maximum dew point
Note: The discharge air sensor is shock and vibration
resistant; however, be careful not to drop the unit or
mount it where it could be exposed to excessive
vibration.
To mount the discharge air sensor:
1. Drill a 10 mm (3/8 in.) diameter hole in the duct at
the desired mounting location.
2. Insert the temperature probe into the drilled hole.
3. Secure the discharge air sensor to the duct using
two No. 6 self-drilling sheet metal screws included
with the unit.
Wiring
If the NS Series Network Discharge Air Sensor is used
in an application requiring multiple discharge air
sensors, each with a unique DIP switch address, set
the DIP switches before wiring the unit. Otherwise,
proceed directly to Step 5.
1. Loosen (but do not remove) the two cover-holding
screws using a 6 mm (1/4 in.) blade screwdriver or
a 6 mm (1/4 in.) nut driver.
2. Remove the cover from the discharge air sensor.
3. See Figure 1 and set the DIP switch block on the
discharge air sensor circuit board to the desired
DIP switch address.
Note: Table 1 lists the available DIP switch addresses
and the DIP switch settings required to obtain them.
4. Reinstall the cover on the discharge air sensor and
tighten the two cover-holding screws to secure it in
place.
5. Wire the discharge air sensor to the SA Bus screw
terminal block as illustrated in Figure 2.
This equipment has been tested and found to
comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference when this equipment is
operated in a commercial environment. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area is
likely to cause harmful interference, in which case
the user will be required to correct the interference
at his/her own expense.
This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la Classe (A) respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada. Table 1: Setting the DIP Switch Address
Available
DIP Switch
Addresses
DIP Switch Settings
Switch 4 Switch 2 Switch 1
204 Off (Open) Off (Open) Off (Open)
205 Off (Open) Off (Open) On (Closed)
206 Off (Open) On (Closed) Off (Open)
207 Off (Open) On (Closed) On (Closed)
208 On (Closed) Off (Open) Off (Open)
209 On (Closed) Off (Open) On (Closed)
210 On (Closed On (Closed) Off (Open)
211 On (Closed) On (Closed) On (Closed)
Figure 1: Setting the DIP Switch Block
FIG:dp_swtch_b
lck
21
4
Off
(Open)
On
(Closed)

NS Series Network Discharge Air Sensors Installation Instructions
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Note: For more details on wiring the MS/TP
Communications Bus, refer to the MS/TP
Communications Bus Technical Bulletin
(LIT-12011034) or the FX-PC Series Controllers
MS/TP Communications Bus Technical Bulletin
(LIT-12011670).
6. Use the Metasys® Controller Configuration
Tool (MS-CCT) or Facility Explorer Programmable
Controller Tool (FX-PCT) Software to commission
the discharge sensor. Refer to the Controller Tool
Help (LIT-12011147) for more details.
Repair Information
If the NS Series Network Discharge Air Sensor fails to
operate within its specifications, replace the unit. For a
replacement discharge air sensor, contact the nearest
Johnson Controls representative.
Risk of Electric Shock.
Disconnect the power supply before making electrical
connections to avoid electric shock.
Risque de décharge électrique.
Débrancher l'alimentation avant de réaliser tout
raccordement électrique afin d'éviter tout risque de
décharge électrique.
IMPORTANT: Failure to adhere to these wiring
details causes the discharge air sensor to function
incorrectly.
Figure 2: Wiring to the SA Bus
Screw Terminal Block
FIG:scrw_trmnl_blck

NS Series Network Discharge Air Sensors Installation Instructions
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Technical Specifications
NS Series Network Discharge Air Sensors
Supply Voltage 9.8 to 16.5 VDC; 15 VDC nominal
Current Consumption 12 mA maximum (non-transmitting) per discharge air sensor;
60 mA maximum total current consumption per SA Bus
Terminations Four color-coded wiring leads, stripped and tinned;
Factory-installed at the discharge air sensor screw terminal block
Sensor Addressing DIP switch set (204 to 211); factory set at 204
Wire Size 1.0 to 0.6 mm (18 to 22 AWG) diameter);
0.6 mm (22 AWG) diameter recommended; 305 cm (10 ft) wiring lead included with the
unit
Communication Rate Auto-detect: 9.6k, 19.2k, 38.4k, or 76.8k bps
Temperature Measurement
Range -10°C/14°F to 60°C/140°F
Temperature Sensor Type Local 1k Ohm platinum resistance temperature detector (RTD); Class A per IEC 60751
Temperature
Accuracy NS Series Discharge Air
Sensor
±0.6C°/±1.0F°
Temperature
Element Only 0.2C° at 21°C (0.35F° at 70°F)
Ambient
Conditions Operating -10 to 60°C (14 to 140°F); 10 to 90% RH, noncondensing; 29°C (85°F) maximum dew point
Storage -40 to 70°C (-40 to 158°F); 5 to 95% RH, noncondensing
Compliance BACnet®
International BACnet Testing Laboratories™ (BTL) 135-2004 Listed BACnet Smart Sensor (B-SS)
United States UL Listed, File E107041, CCN PAZX,
Under UL 916, Energy Management Equipment
FCC Compliant to CFR 47, Part 15, Subpart B, Class A
Canada UL Listed, File E107041, CCN PAZX7,
Under CAN/CSA C22.2 No. 205, Signal Equipment
Industry Canada, ICES-003
Europe CE Mark – Johnson Controls, Inc. declares that this product is in compliance with the
essential requirements and other relevant provisions of the EMC Directive.
Australia and
New Zealand RCM Mark, Australia/NZ Emissions Compliant
Dimensions Sensor
Enclosure
(Height x
Width x Depth)
76 x 76 x 51 mm (3 x 3 x 2 in.)
Temperature
Probe NS-DTN7043-x: 102 mm (4 in.) long
NS-DTN7083-x: 203 mm (8 in.) long
Shipping
Weight NS-DTN7043-x 1.15 lb (0.52 kg)
NS-DTN7083-x 1.17 lb (0.53 kg)
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damage resulting from misapplication or
misuse of its products.

Published in U.S.A. www.johnsoncontrols.com
NS Series Network Discharge Air Sensors Installation Instructions
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Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.
All other marks herein are the marks of their respective owners. © 2016 Johnson Controls, Inc.
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