Johnson Controls NS Series Installation Instructions page 2

• away from direct sunlight, radiant heat, outside
walls, outside doors, air discharge grills, or
stairwells; and from behind doors
• away from steam or water pipes, warm air stacks,
unconditioned areas (not heated or cooled), or
sources of electrical interference
Note: The network 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.
The following ambient operating conditions apply:
• Temperature: 32 to 104°F (0 to 40°C)
• Humidity: 10 to 90% Relative Humidity (RH),
noncondensing; 85°F (29°C) maximum dew point
To mount the network sensor:
1. Use a 1/16 in. (1.5 mm) Allen wrench or
Johnson Controls T-4000-119 Allen-Head
Adjustment Tool to loosen the security screw on
the top of the unit.
2. Insert a coin into the slot next to the security screw
location, then carefully pry the top edge of the
sensor assembly away from its mounting base and
remove.
IMPORTANT: Do not remove the Printed Circuit
Board (PCB). Removing the PCB voids the product
warranty.
3. For vertical wallbox-mounted installations, proceed
to Step 4. For surface-mounted installations,
proceed to Step 7.
4. Pull out approximately 6 in. (152 mm) of cable from
the wallbox, and insert the cable through the hole
in the mounting base.
5. Align the mounting base on the wallbox.
Note: Confirm that the mounting base is positioned
with the proper edge up. The mounting base is
positioned properly when the security screw is located
on the top edge of the base.
2 Vertical Wallbox-Mounted or Surface-Mounted NS Series Network Sensors without LCD
Installation Instructions
6. Secure the mounting base to the wallbox using the
two No. 6 pan-head mounting screws included with
the unit. Proceed to Step 9.
7. Align the mounting base on the wall, and use the
base as a template to mark the location of the two
mounting holes on the surface.
Note: Confirm that the mounting base is positioned
with the proper edge up. The mounting base is
positioned properly when the security screw is located
on the top edge of the base.
8. Secure the mounting base to the wall using the
appropriate mounting hardware (field furnished).
Proceed to Step 9.
9. Wire the network sensor. 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).
For models featuring a modular jack, simply snap
the wiring plug into the jack. See Figure 1 for
modular jack pin number assignments. Modular
jack models require a straight-through, one-to-one
connection (not a crossover). For models featuring
a screw terminal block, wire the unit as illustrated
in Figure 2.
CAUTION: Risk of Electric Shock.
Disconnect the power supply before
!
making electrical connections to avoid
electric shock.
IMPORTANT: Failure to adhere to these wiring
details causes the network sensor to function
incorrectly. You will not be able to connect to the
system using the wireless commissioning converter
or the handheld Variable Air Volume (VAV) balancing
tool, and you will not be able to expand the system
with future offerings.