Installation of New PSIO Module
1. Verify if the existin g P S IO m odu le is defective, by using the procedure describe d in t he
Notes on Module Operation sectio n, and Control Mo dules section. Do not select th e Att ach
to Network Device tab le if the LID displays communic at ion failure.
2. Data regarding the PSI O configuration should have been recorded and saved. Th is data will
have to be reconfigure d into the LID. If this data is no t available, follow the pro cedures
described in the Set Up Mac h ine Control Configurat ion section. Record the T OTAL
COMPRESSOR STARTS and the COMPRESSOR ONTIME from the STATUS01 table on
the LID.
If a CCN Building Super v is or or S er v i ce Tool is present, the mod ule configuration shoul d
have already been upload ed into memory; then, when th e new module is installed, the con-
figuration can be downl oaded from the compute r (i f t he s of tware version is the sam e) .
Any communication wi res from other machines or CCN modules must be disconne cted.
3. Check that all power to th e unit is off. Carefully dis c on nect all wires from the def ec t ive
module by unplugging the 6 connectors. It is not ne c es s ar y t o remove any of the individu al
wires from the connectors.
4. Remove defective PS IO by r em ov i ng its mounting screw wi th a long -shaft Phillips
screwdriver, and removing the module from the control box. Save the screw for later use.
The green ground wire is held in place with the module mounting screw.