Johnson Controls SABROE UniSAB III User Manual

Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
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Calibration
If Setpoint 1 is 0.0% in this picture it indicates that UniSAB III adjusts the Vi slide automatically. Change
Setpoint 1 to -10.0% which will change the Vi adjustment to manual and place the Vi slide in minimum
position. The following picture will appear:
Make sure that the capacity slide is in minimum. Adjust the minimum position on the transmitter. Now
bring the capacity slide to its maximum position (i.e. when the current consumption is no longer rising)
and adjust the maximum position on the transmitter. Return the slide to minimum and check. Afterwards,
remember to reset Setpoint 1 to 0.0%.
7.5.5 Volume ratio slide adjustment, auto Vi
It is assumed that the capacity slide transmitter has been adjusted correctly. Start the compressor in
Manual and move the capacity slide up to 20-30%. Select Control values/Capacity/Vi slide position/Con-
trol and the following picture will appear:
In this picture Setpoint 1 = 0.0% always means that the Vi slide will be adjusted by UniSAB III automati-
cally. Change Setpoint 1 to -10% which changes the Vi adjustment to manual and places the Vi slide in
minimum position.

Johnson Controls SABROE UniSAB III Specifications

General

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