Why is the maintenance icon showing on my Johnson Controls Network Hardware?
The maintenance icon appears for several reasons: a failed PT1000 temperature sensor in the NRM (replace the NRM module), a communication problem with the FX controller (check the bus wiring to the display and ensure the +, - and COM wires are correctly connected), or an off-normal condition reported by the controller.
What to do if Johnson Controls Network Hardware display shows different setpoint values than the FX controller?
First, verify that the controller to which the NRM module is connected has been loaded with the correct configuration and that the configuration properties have been set correctly. Then, use the FX CommPro Commissioning Tool to check that the value of the relevant network variable output of the Room Sensor object matches the value on the LCD. If not, replace the NRM module.
How to fix a manual change that doesn't work as expected on Johnson Controls Network Hardware?
Verify that the configuration properties to enable the command are set correctly. Using the FX CommPro Commissioning Tool, check that the values of the network variable outputs from the Room Sensor object respond in accordance with the display changes as the dial is rotated or the fan push button is pressed. Also, verify that the controller to which the NRM module is connected has been loaded with the correct configuration.
What to do if NRM shows fan override status, but it's not active in Johnson Controls Network Hardware controller?
Verify that the controller to which the NRM module is connected has been loaded with the correct configuration and that the configuration is designed to react correctly to an override status. Check for other conditions that could override the NRM module override.
Why is a symbol not appearing as expected on my Johnson Controls Network Hardware display?
Verify that the configuration properties to enable the display of the symbol are set correctly in the Room Sensor object in the FX controller. Also, verify that the FX controller to which the NRM module is connected has been loaded with the correct configuration.
How to troubleshoot a Johnson Controls Network Hardware LCD with no display?
The most likely cause is a lack of power. Check the wiring and supply voltage to the module.
Lists and defines the configurable parameters for the NRM in the Room Sensor object.
Explains the electrical connections and terminal block layout for the NRM.
Covers how to set the physical address for addressable NRM models.
Details the process of setting up and verifying the NRM's operation.
Final steps to verify and activate the NRM's functionality.
Addresses common issues encountered during NRM installation and operation.
General| Connectivity | Ethernet, RS-485 |
|---|---|
| Communication Protocols | BACnet/IP, BACnet MS/TP, N2 |
| Operating Temperature | 32°F to 122°F (0°C to 50°C) |
| Power Supply | 24 VAC/VDC |
| Series | FX |
| Communication Speed | 9.6 kbps to 76.8 kbps (MS/TP) |
| Dimensions | Varies by model |
| Weight | Varies by model |
| Humidity Range | non-condensing |
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