Johnson Controls NS-AP Series Installation Instructions Manual

Surface-Mounted NS Series Network Sensors with LCD
Installation Instructions
NS-AHA700x-0, NS-AHB700x-0, NS-AHR710x-0, NS-APA700x-0,
NS-APB700x-0, NS-APR710x-0, NS-ATA700x-0, NS-ATB700x-0,
NS-ATC700x-0, NS-ATD700x-0, NS-ATF700x-0, and NS-ATV700x-0
Applications
The surface-mounted NS Series Network Sensor with
Liquid Crystal Display (LCD) is an electronic zone
sensor designed to function directly with
Johnson Controls® BACnet®
Master-Slave/Token-Passing (MS/TP) digital
controllers in Heating, Ventilating, and Air Conditioning
(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 feature a temperature setpoint dial and
LCD designed to make adjusting the temperature
setpoint and viewing the zone temperature easier.
A warmer/cooler dial is included on certain models for
minor temperature adjustments from the setpoint.
Some models allow occupants to view the
Relative Humidity (RH) of the zone; these models
include a push button to toggle between temperature
and RH on the display. These models also have the
capability to set the desired default display to either
temperature or RH.
A °F/°C push button is available on certain models
to provide temperature scale options for display.
A fan mode push button 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 the user to signal the controller that the space is
occupied, to request an override of time-of-day
scheduling. Rotating the setpoint dial signals
occupancy. See Temperature Setpoint Adjustment/
Occupancy Override for more information.
Refer to the
Surface-Mounted NS Series Network Sensors with LCD Installation Instructions
Part No. 24-10094-9, Rev. J
Supersedes December 16, 2011
QuickLIT website for the most up-to-date version of this document.
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, the wires connecting
the network sensor to the controller can be terminated
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 via the network sensor.
IMPORTANT: The surface-mounted 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.
Issued August 8, 2013
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