Appendix B: Ncm Maintenance; Introduction; Ncm Maintenance Flowcharts - Johnson Controls 300 Series Manual

88 Network Control Module 300 Series Technical Bulletin

Appendix B: NCM Maintenance

Introduction

NCM Maintenance Flowcharts

We recommend regular maintenance to help keep older NCMs from
failing. Mission critical NCMs need the most attention. This section
contains simple flowcharts, maintenance check procedures, and
troubleshooting information to assist you in keeping NCMs running at
peak performance.
Use the following flowcharts as guidelines for NCM maintenance.
1
2
Figure 33: General NCM Maintenance Flowchart
Start
No
Any Mission
Cricital NCMs
Yes
No
Time for NCM
Maintenance
Yes
Yes
NCM Field
Inspection?
No
Yes
NCM Power
Fail Test?
No
Yes
NCM
Diagnostics
Defined
No
Done
Done
A
B
C