Ordering Information; Repair Information - Johnson Controls NS Series Installation Instructions Manual

NS Sensors with Fault Code Capability Error Codes
The fault indication comes through the Network Sensor
Bus when a Network Sensor is used in the Zone. The
LCD indicates the code number for all the required
state of California Title 24 economizer fault conditions.
Table 2 describes the faults.
Table 2: Network Sensors with Fault Code Capability Error Codes
Display Text California Title 24 Economizer
Fault Condition
EF1 Air temperature sensor failure/fault
EF5 Not economizing when it should
EF6 Economizing when it should
EF8 Damper not modulating
EF9 Excess outdoor air

Ordering Information

Table 3: Network Sensors with Fault Code Capability Ordering Information (Title 24 Models for
Economizer Fault Detection Diagnostics [FDD])
Product Size (mm),
Code Number Height x Width
NS-ATB7F03-0 80 x 80
NS-ATB7F03-1 80 x 80
NS-BTB7F03-0 80 x 120
NS-BTB7F03-1 80 x 120

Repair Information

If the Fault Code Network Sensor fails to operate within
its specifications, replace the unit. For a replacement
network sensor, contact the nearest Johnson Controls
representative.
NS Series Network Sensors with Fault Code Capability Installation Instructions
Possible Problem
Problem with one of the air temperature sensors. Check
Outdoor Air, Return Air, or Supply Air sensors.
The economizer is not using outdoor air when it should.
The economizer is allowing outdoor air inside when the
conditions are not suitable for economizer operation.
The economizer damper is not able to modulate properly.
Check damper, linkage to actuator, or the actuator.
The economizer is allowing excess outdoor air inside.
Vertical LCD Screw
Wallbox- Display, Terminals
Mounted F/C Scale
(WB) Toggle
Yes Yes, Yes Yes
Yes Yes, Yes Yes
Yes Yes, Yes Yes
Yes Yes, Yes Yes
Address Temperature
Switches Adjustment:
Setpoint (Set)
or Warmer/
Cooler Dial
(W/C)
Yes Set
Yes Set
Yes Set
Yes Set
Johnson VAV
Controls Balancing
Logo Feature
Yes No
No No
Yes No
No No
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