Johnson Controls SABROE Unisab III Control User Manual

Starts since main C
Counts the number of compressor starts since last main service C i.e. since the last acknowl-
edges for a service C alarm.
Automatic service
Choose between Manual service and Automatic service interval calculation.
If Automatic service is set to No you must manually enter a fixed value for the Service inter-
val C. The default value is 30,000 hours.
If Automatic service is set to Yes, Unisab III will automatically calculate the optimum Service
interval C between main services depending on the compressor running conditions.
The calculation for the Service intervals C is based on the following measurements:
• Compressor load condition, i.e. suction pressure and discharge pressure
• Compressor speed, i.e. the actual variable speed or fixed speed
• Number of starts (SABCube only)
See your compressor service manual for more information about the load curves used for the
optimum Service interval calculation.
The Automatic service interval calculation is only available for certain compressors. See list in
the beginning of this subsection.
All other screw compressors (i.e. the old Sabroe, Stall and VMY types) and reciprocating com-
pressors (i.e. the old SMC Mk1, Mk2, Mk3 and CMO Mk1 models) are not part of this Automat-
ic service function.
Service interval C
If Automatic service is set to No you must enter a manual value for the main C service inter-
val. The default value is 30,000 hours.
If Automatic service is set to Yes you need not set this parameter as Unisab III will automati-
cally set the optimal service interval.
Hours since main
It is possible to key in the elapsed time, in hours, since the last main C service has been
made on this compressor. This entry can be used after the service maintenance program has
been installed on a compressor that has been running for some time or if the cassette has
been replaced and service data lost.
Service phone
Here you can enter the JCI branch phone number, e.g. +381 11 311 9118.
+ 3 8 1 1 1 3 1 1 9 1 1 8
Enter phone number with the and keys and change digit number with the and keys.
Last service alarm ack
Unisab III will issue the alarm Compressor service needed contact JCI Service 1000 hours,
200 hours and 0 hours before a scheduled main service. This alarm can be acknowledged with
password level Superuser or Supervisor (Johnson Controls).
Service
Engineering manual - Unisab III 1.10
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Johnson Controls SABROE Unisab III Control Specifications

General

Brand	Johnson Controls
Model	SABROE Unisab III Control
Category	Control Systems
Language	English