Install Instructions

Part No. 24-11256-00007, Rev. B
8
NS8000 Series
4 2 1
On
Off
DIP switch SA bus address Switch 4 Switch 2 Switch 1
199 Off Off Off
200 Off Off On
201 Off On Off
202 Off On On
203 On Off Off
204 On Off On
205 On On Off
206 On On On
CO
2
altitude compensation
The Johnson Controls NS Series CO
2
Network Sensors ship from the factory calibrated for an altitude range of 0 ft to 2,000 ft
(0 m to 600 m) without compensation.
For altitudes above 2,000 ft (600 m) where optimum accuracy of the CO
2
concentration measurement is essential, modify the
o󰀨set property of the NS Series CO
2
Network Sensors (Zone Quality [ZN-Q] Analog Input [AI]). The o󰀨set represents the local
atmospheric pressure in hectopascals (hPa). Set the o󰀨set to the known local pressure or use the local altitude value listed in
Table 4. The factory default value is 978 hPa.
As of Release 5.3 of the Controller Conguration Tool (CCT) and Facility Explorer® Programmable Controller Tool (FX-PCT)
software, the NS Series CO
2
Network Sensors (Zone Quality [ZN-Q] Analog Input [AI]) automatically change the hPa value entered
from Table 4 into the correct o󰀨set value in the CCT and FX-PCT software. The o󰀨set value for the SA bus device is labeled ppm;
however, it is the proper eld to enter the hPa value found in Table 3. Refer to the Controller Tool Help (LIT-12011147) for more
details.
Note: Enter the pressure value only in units of hPa. The sensor reads the value entered as hPa. The CO
2
present value may
require several minutes to settle after changing the o󰀨set value.
See Table 4 for local altitude values.
Network sensor addressing
Figure 1: Three-position switch
Increasing the temperature
1. To activate the W/C sensor model, press the Up arrow once. The center white LED lights up.
2. To increase the temperature setpoint, press the Up arrow again.
3. To increase the temperature further, continue to press the Up arrow.
4. Optional: Press and hold the Up arrow to continuously increase the temperature setpoint.
Note: When you press the Up arrow, the temperature increases by one-tenth of the temperature setpoint adjustment
set in the controller.
Decreasing the temperature
1. To activate the W/C sensor model, press the Down arrow once. The center white LED lights up.
2. To decrease the temperature setpoint, press the Down arrow again.
3. To decrease the temperature further, continue to press the Down arrow.
4. Optional: Press and hold the Down arrow to continuously decrease the temperature setpoint.
Note: When you press the Down arrow, the temperature decreases by one-tenth of the temperature setpoint adjustment
set in the controller.
Table 3: Network sensor addressing