Applications - Johnson Controls - Part No. 24-10094-25 - Vertical Wallbox-Mounted or Surface-Mounted NS Series Network Sensors with LCD

Vertical Wallbox-Mounted or Surface-Mounted NS Series Network Sensors with LCD Installation Guide

Product name
Vertical Wallbox-Mounted or Surface-Mounted NS Series Network Sensors with LCD
Document type
Installation Guide
Document number
Part No. 24-10094-25
Document revision
P
Revision date
2021-03-31

The vertical wallbox-mounted or surface-mounted NS Series Network Sensor with LCD is an electronic zone sensor designed to function directly with Johnson Controls® BACnet® Master-Slave/Token-Passing (MS/TP) digital controllers in HVAC systems. Models in this series monitor the temperature setpoint, zone temperature, and humidity, and transmit this data to a field controller on the Sensor Actuator (SA) Bus.

All models except the NS-BTF Series feature either a temperature setpoint adjustment dial or setpoint adjustment buttons. They also feature a °F/°C pushbutton and an LCD designed to make adjusting the temperature setpoint and viewing the zone temperature easier. A warmer/cooler dial is included on NS-BTF Series models for minor temperature adjustments from the setpoint.

Some models also allow occupants to view the Relative Humidity (RH) of the zone; these models include a pushbutton to toggle between temperature and RH on the display. These models also have the capability to set the default display to either temperature or RH.

A °F/°C pushbutton is available on all models to provide temperature scale options for display. A fan mode pushbutton is also included on some models to select the desired fan speed (AUTO-OFF-low-medium-high). An occupancy override function is featured on all models, which allows you to signal the controller that the space is occupied, to request an override of time-of-day scheduling. Rotating the setpoint dial or pressing either setpoint adjustment button signals occupancy. See Temperature Setpoint Adjustment/Occupancy Override for more information.

Select models in this series also provide Variable Air Volume (VAV) balancing functionality. These models look like and perform similarly to the other network sensors but have the added capability of serving as a tool to balance a VAV box.

Depending on the model chosen, you can terminate the wires connecting the network sensor to the controller using either a modular jack or screw terminal block, offering wiring flexibility.

Note: Models featuring a modular jack are not intended for installations where daisy chaining to the MS/TP Bus is required.

All models include an SA Bus access port for connecting accessories to access the SA Bus. This feature allows a technician to commission or service the controller through the network sensor.

Note: Since some NS Series Network Sensor features are not supported in previous releases of Metasys® or Facility Explorer system software, we recommend that you keep the system software up to date.
Important: The NS Series Network Sensor is intended to provide an input to equipment under normal operating conditions. Where failure or malfunction of the network sensor 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 network sensor.
Important: Le NS Series Network Sensor est destiné à transmettre des données entrantes à un équipement dans des conditions normales de fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du network sensor 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 network sensor. Approved March 14, 2003.