Preface
This Unisab III Operating manual covers reciprocating as well as screw compressors, unless
otherwise stated. The manual offers a description of the Unisab III control system including
function, application and service.
This manual is produced by:
Johnson Controls Denmark ApS
Christian X's Vej 201
8270 Højbjerg, Denmark
Phone +45 87 36 70 00
Fax +45 87 36 70 05
CVR No 19 05 61 71
www.sabroe.com
Copyright © 2012 Johnson Controls Denmark ApS
This manual must not be copied without the written permission of Johnson Controls Denmark
and the contents must not be imparted to any third parties nor be used for any unauthorised
purposes. Contravention will be prosecuted.
Please read the manual carefully so that you fully understand the Unisab III control system
and know how to operate it correctly. Damage occurring as a result of incorrect operation is
not covered by Johnson Controls Denmark's guarantee.
Note the version number of this manual. The version number is printed on the preceding
page. It is important that this number is identical to the Unisab III version number, which is
shown in the picture Service/Diagnosis/Software/Software version. Never use a manual with
lower version than Unisab III.
Warning!
If it is necessary to service the Unisab III control system, the power supply to the compressor
motor must be switched off on the main switch to prevent the compressor from starting up
accidentally. As the Unisab III box contains live parts it is very important to comply with the
safety regulations on site. Failure to do so may cause damage to equipment and affect per-
sonal safety. Even though the power supply to Unisab III is switched off, some of the termi-
nals may still be live.
Only authorized personnel is allowed to service Unisab III. If Unisab III is connected to a net-
work, always remember that the compressor can be started from REMOTE. This cannot be
avoided solely by changing settings on the Unisab III display.
If it is found that Supervisor Password has been used to set a value which is critical for safe
compressor operation, i.e. outside the specified limits, which can cause irregular or incorrect
operation or in worst case breakdown, it must be anticipated that Johnson Controls Denmark
is considered entitled to reduce its warranty obligations.
Johnson Controls Denmark further accept no liability of any kind for damage to compressor
unit and plant parts caused by torsional oscillation or the like which is attributable to built-in
VSD solutions initiated by the customer after delivery.
Emergency stop
Activate the emergency stop by a light touch and deactivate it by turning it clockwise. The
emergency stop breaks the power circuit of the compressor motor starter/motor guard. Acti-
vation of the emergency stop during operation will immediately disconnect the motor guard
while there is still power on Unisab III. The compressor state can therefore always be read.