Owner's manual

3
www.climacoolcorp.com
The CoolLogic Control System provides leaving chilled and
hot water liquid temperature control algorithms which
maintain precise temperature control for cooling, heating,
heat recovery and simultaneous heating and cooling
applications. A compressor run time equalization sequence
is given to ensure even distribution of compressor run
time throughout the entire chiller bank. Chiller power
consumption is minimized by indexing the most effi cient
stages of cooling, optimizing heat transfer surface.
The ClimaCool
®
Ultimate Chiller Solution, “UC” and “UG”
series, modular water-cooled chillers utilize the CoolLogic
Control System to incorporate one or more modules. The
controls are divided into two separate sections - the Master
Control Panel and the module controller. The Master Control
Panel governs all signi cant events, timing and compressor
staging, providing operator interface for all levels of setting
and retrieving data. A single Master Control Panel has the
ability to control a bank of modules with each unit having
a unique address code by setting the two rotary switches
of the master and each module controller. The Master
Controller is address #01, module #1 is address #02, and so
on (see  gure 1 on page 4).
The module controller resides at each module location
which senses and analyzes all pertinent data speci c to
that module’s compressor and water  ow operations.
CoolLogic Control System Wiring
A separate 115 volt power supply is required to power the
CoolLogic Master Control Panel. Communication between
the Master Control Panel and chiller modules requires a
simple two-conductor 16 gauge shielded cable rated at 60°C
minimum, daisy chain connection. Control wiring cannot be
installed in the same conduit as line voltage wiring or with
wires that switch highly inductive loads such as contactor
and relay coils. Refer to the Power Distribution schematic on
page 47 of this manual for more information. All wiring shall
be in compliance with all local and national codes.
Safety
Throughout this manual warning, danger, caution and
attention notices appear. Read these items carefully before
attempting any installation, service or troubleshooting of
the equipment. All labels on unit access panels must be
observed.
DANGER: Immediate hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING: Potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION: Potentially hazardous situation or an unsafe
practice which, if not avoided, could result in minor or
moderate injury or product or property damage.
CoolLogic Control System
DANGER
!
• Electric shock hazard!
• May result in injury or death!
• Disconnect power supply(ies)
before servicing!
• Refer servicing to qualified
service personnel.
• Risque de choc électrique!
• Résultat de mai dans dommages
ou la mort!
• Debrancher avant d’entreprendre
le dépannage de l’appareil!
• Consulter un réparateur qualifie
pour le dépannage.
DANGER
!
CAUTION ATTENTION
! !
• Unit to be serviced by qualified
personnel only.
• Refrigerant system under
pressure.
• Relieve pressure before using
tourch.
• Recover refrigerant and store or
dispose of properly.
• Confier la maintenance á un
technicien qualifie.
• Le systéme frigorifique sous
pression.
• Décomprimer avant d’exposer á
la flamme.
• Récuperér le frigorigene et le
stocker ou le détrire
correctement.
RECOVER
REFRIGERANT
WARNING!
WARNING! To avoid possible injury or death due to electrical
shock, open the power supply disconnect switch and secure it
in an open position during installation.
CAUTION!
CAUTION! Use only copper conductors for field installed
electrical wiring. Unit terminals are not designed to accept
other types of conductors.