Johnson Controls SABROE UniSAB III Engineering Manual page 177

Service
Zero capacity position (screws)
The current calculated value of the zero point and any manual setting value of the zero point are shown
in this picture:
For information about Zero capacity Position see also subsection 3.8.8 Zero pos. picture
COP
UniSAB III can be set to measure the compressor COP values (Coefficient of Performance) as well as
the mechanical efficiency and the Carnot efficiency. The calculated COP values and a number of inter-
mediate calculations are shown in this picture:
A more comprehensive description of the COP function and the setting of this can be found in the man-
ual UniSAB III-COP.
Proficom (for internal use only)
This picture shows how UniSAB III communicates with other equipment using Profibus communication.
Rotatune piston (for internal use only)
This picture shows the interaction between frequency converted speed and capacity stage load/unload.
Engineering manual - UniSAB III 1.10.8
001930 en 2021.06 177/346