9-10
129390199 Operator Manual Troubleshooting
9.2.10 Steam Utility
Failure
Steam supply to sterilizer is
shut off or has failed.
Alarm Screen Check steam utility supply
and restore to proper
operation.
Causes and Corrections:
1. Steam pressure < 50 psig
(< 3.4 bar) for facility
steam units and < 30 psig
(< 2.1 bar) for integral
steam generator units.
• Check steam piping
2. Switch failure
• Readjust
•Repair
Steam pressure often drops
below 50 psig when steam is
supplied from an electric
steam generator, triggering
the Steam Utility Failure alarm
after 10 minutes.
Steam Utility Pressure Switch
(PS4) is factory preset to
50 psig for steam and to
30 psig for electric units, all
replacement switches are set
to 50 psig.
For electric units ONLY –
Steam Utility Pressure Switch
(PS4) set point MUST be
adjusted to 30 psig.
Table 9-1. Operator Troubleshooting – In-Cycle Alarms (Continued)
Condition Alarm Screen on Sterilizer Control
Service Information
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