Johnson Controls LX Series Installation Instructions Manual

1 Applications The LX Series Free Programmable LX-PRGxxx-11 Controllers are microprocessor-based controllers designed for control various building automation systems, such as multi-zone air handing units, lighting control systems, central plant applications, and power measurement ...

2 Dimensions Figure 1: LX-PRG203-11 and LX-PRG300-11 Controller Dimensions, mm (in.) Figure 2: LX-PRG4x0-11 and LX-PRG6x0-11 Controller Dimensions, mm (in.) ...

3 Mounting Location Considerations Observe these guidelines when mounting an LX Free Programmable Controller: • Allow for proper clearance around the controller’s enclosure, wiring terminals, and service pin to provide easy access for hardware configuration and maintenance. � ...

4 Use an external fuse on the 24 VAC/DC side (secondary side) of the transformer to protect all controllers against power link spikes (Figure 3 and Figure 4). Note: Connecting the power source to an electrical system ground is not a requirement for proper system operation. However ...

5 Figure 7: LX-PRG4x0-11 and 6x0-11 Controller Jumper Location * Factory-default positions LONWORKS Network Board Universal Outputs (UO) 0-10V / 0-20mA Select 0-10V* 0-20mA Universal Inputs (UI) 0-20mA Enable / Disable 0-20mA Disable* 0-20mA Enable PRG6x0-12 ONLY: Subnetwork EOL T ...

6 Figure 8: Typical Power and Network Connections with an LN-SVSENx-0 Input typ_power_connection Service PIN Button Cool Heat Return Air Temperature 10k? type II Supply Air Temperature 10k? type II Mixed Air Temperature 10k? type II Supply Air Humidity 2-wire, 4-20mA Supply Fan St ...

7 Input Wiring The controllers have physical connections for inputs, which are software-configurable by using the device’s Graphical Programming Interface (GPI) Wizard. Each input can be configured for digital, resistive, current, or voltage signals. You must configure the input ...

8 Use the Figure 14 configuration for a 3-wire, 0 to 20 mA transducer powered by an external 24 AC/DC power supply. Use the Figure 15 configuration for a transducer powered by its own power source. For the LX-PRG300-11, LX-PRG4x0-11, and LX-PRG6x0-11 controllers, it is not necessa ...

9 LN Series Communicating Sensors Wiring The LN Communicating Sensors (LN-SVSEN-0 and LN-SVSENH-0) are communicating room temperature sensors with backlit displays and graphical menus. Connect the LN-SVSENx-0 Sensor to the SUBNET PORT modular connector of the controller with a sta ...

10 Output Wiring Recommendations Output wiring recommendations include: • For a wire less than 75 feet (23 m) long, use either a shielded or unshielded 18 AWG wire. • For a wire up to 200 feet (61 m) long, use a shielded 18 AWG wire. • The shield of the wire should be ground ...