Product manual

KPMWC00905-10EN - page 9/24
MicroTech II controller
The control system of the chiller consists of two major components: the operator interface panel and the unit control
panel.
The touch screen panel is on an adjustable arm so that it can be
positioned comfortably for the operator.
The operator interface panel has a Super VGA touch-screen, utilizing
graphics to provide clear and concise information on the chiller status,
alarms, trends, and setpoint adjustment. Should the touch-screen
become inoperable, the unit and compressor controllers will continue
uninterrupted operation of the chiller.
Fig.8
The control panel contains a USB port for downloading the unit’s fault history, major parameter trends, and the unit
operating manual that is stored in the microprocessor. These design features built into this control system optimize ease
of operation, reliability, and efficient operation.
The unit’s control panel is featured with the controller, which is responsible for functions involving the single compressors
and the entire unit (controlling the electronic expansion valve, for instance) and is the interface point for devices and
signals external to the unit.
Fig. 9
EXV Board
Field Wiring Knockouts EXV Board
Terminal Board TB UTB1 For Field
Wiring Connections Field Wiring
Knockouts EXV Board
Controller
OITS PC
Comp #2 I/O
On/Off
Switches
UNIT
COMP #1
COMP #2
Universal
Communica
tion Module
Comp #1 I/O