Johnson Controls LIT-12011302 Installation Instructions Manual Download Page 2 | Manualshive

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Johnson Controls LIT-12011302 Installation Instructions Manual Download Page 2

LN Series LN-VSTAT and LN-PSTAT Sensors Installation Instructions

2

Dimensions

Mounting

Location Considerations

The LN-VAV/VVT controllers are designed for easy
installation. However, certain conditions apply when
choosing a location for the device:

•

The LN-VSTAT and LN-PSTAT sensors should not
be installed on an outside wall

•

Install the sensor away from any heat source

•

Install the sensor away from discharge air grills

•

Install the sensor away from areas where it can be
affected by the sun

•

Install the sensor in an area that provides proper
device ventilation. Ensure nothing restrains air
circulation to the sensor.

Note:

The LN-VSTAT and LN-PSTAT sensors are not

designed for outdoor use.

Figure 1: LN-VAVLF, LN-VAVCF, and LN-VVTLF Controller Dimensions

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Summary of Contents for LIT-12011302

Page 1: ... be present IMPORTANT Work in a static free area Discharge static electricity by touching a known securely grounded object Do not handle the controller without proper protection against static discharge Use a wrist strap when handling the controller Secure the wrist strap clamp to earth ground Compliance Statement Part 15 19 This device complies with Part 15 of the FCC Rules Operation is subject t...

Page 2: ...sensors should not be installed on an outside wall Install the sensor away from any heat source Install the sensor away from discharge air grills Install the sensor away from areas where it can be affected by the sun Install the sensor in an area that provides proper device ventilation Ensure nothing restrains air circulation to the sensor Note The LN VSTAT and LN PSTAT sensors are not designed fo...

Page 3: ...wall Ensure the correct side of the base is facing upwards 5 Remove the device and drill holes if necessary 6 Install anchors into the wall if necessary 7 Ensure the mounting surface is flat and clean 8 Insert screws in mounting holes of the base Do not overtighten the screws 9 Strip each wire 1 4 in 10 Gently push excess wiring back into the wall 11 Flip the printed circuit board back into place ...

Page 4: ...ller The LN VSTAT and LN PSTAT sensors use a serial communication protocol and are designed to connect to the serial inputs labelled SMRT and SMRT on the LN VAVLF and LN VVTLF controller Note The LN VAVCF controller does not support the LN VSTAT and LN PSTAT sensors To wire a wall mounted LN VAV VVT controller 1 Remove the faceplate 2 Use a screwdriver to press down the tabs located on the bottom ...

Page 5: ...controller before you can use the communication jack Typically these connections should have been made when the VAV controller and LN Sensor were first installed To connect the LN VSTAT sensors to an LN Sensor using an 1 8 in mono or stereo audio cable 1 Use the taps on the bottom of the sensor to remove the sensor face plate 2 Connect the SMRT and SMRT output terminals of the LN VSTAT sensors to ...

Page 6: ...d LN PSTAT Sensors Installation Instructions 6 Connect 1 8 in Audio Plug from LN VSTAT Sensor Figure 8 LN Sensor Wiring LN VAV LN Sensor LN VSTAT Figure 9 LN VSTAT and LN PSTAT sensors Wired to LN Sensor Using an Audio Plug ...

Page 7: ...work to avoid a short circuit Note The LN VSTAT and LN PSTAT sensors do not have an effect on the network topology for LON networks Note The Bus topology network configuration allow for easy network troubleshooting for LON communication wiring Topology Wiring Choices If the distance between the sensor and the controller stub length is less than 3 meters a bus topology must be used Figure 11 If the...

Page 8: ...r The wiring scheme in figure is almost identical to a bus topology network but since the stub length exceeds 3 meters it becomes a free topology network which requires a free topology terminator CONTROLLER CONTROLLER CONTROLLER Bus Topology Terminator Stub Length 3 m Bus Topology Terminator Figure 11 Bus Topology Stub 3m CONTROLLER CONTROLLER CONTROLLER Free Topology Terminator Stub Length 3 m Fi...

Page 9: ... Pair LONWORKS Networks Part 005 0023 01 Note Use proper network terminators depending on the type of network topology used Failure to do so may result in communication errors between controllers Do not use multiple gauges of cable on the same communication bus as this may also result in communication errors Troubleshooting Table 1 Troubleshooting Problem Possible Cause Solution Temperature is not...

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