American Power Conversion Central Air Conditioning System manual To update the controller firmware

Operation: Set Up the Display

Pressure units. Set the units of measure for pressure readings and settings to either English (psig) or metric (kPa).

Adjust display

Path: Main > Setup > System # > Display > Display Adjust

Set the LCD contrast. Adjust the visibility of the screen text. Lower numbered settings provide darker text; higher numbers provide lighter text. Settings range from 0–7.

Key Click. Enable or disable a beep sound every time a key is pressed on the display interface.

How to update the firmware

Path: Main > Setup > System # > Display > Update Firmware

To update the controller firmware:

1.Go to www.apc.com/tools/download/ and check for the most recent version of the firmware.

2.If a newer version is available, download it to a location that can be accessed in step 4.

Stop the System before updating the firmware. For instructions, see “Stop the

System” on page 5.

3.Set up the serial connection:

a.Connect an available serial port of your computer to the DB-9 serial port on the right side of the electrical panel (connector J2), using the supplied serial cable (APC Part Number 940- 0103). To extend the cable, use APC cable number 940-1000A with 940-0103.

b.Run a terminal emulation program, such as HyperTerminal®.

c.Configure the following settings on the serial port you selected:

Baud Rate	19200
Data Bits	8
Parity	None
Stop Bits	1
Flow Control	None

Some terminal emulation programs require that you disconnect and then reconnect the terminal session for the new serial port settings to take effect.

Note

4.On the display interface, Select YES from the Update Firmware menu. Use the path you selected in step 2.

32 NetworkAIR IR Operation, Maintenance, and Troubleshooting