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CG-PRC011-EN4
Standard Features
Microprocessor Control
Microprocessor control means the scroll
chiller maintains chilled water
temperature more accurately, resulting in
less temperature drift in the building. The
microprocessor control also incorporates
optimal chiller start-up logic (low and
high ambient), load limiting, compressor
anti-recycle timing, auto lead/lag
function, compressor protection, and
many other safety features. The “smart”
safety features provide complete fault
protection without nuisance tripping.
BENEFIT: consistent, reliable operation,
longer life.
Leaving Chilled Water
Temperature Control
The microprocessor actually monitors
temperature and the rate of change over
time, effectively controlling compressor
loading for efficient chiller operation.
BENEFIT: accurate and efficient building
comfort, less energy wasted.
Diagnostics and Display
The microprocessor’s operator interface
is a menu-driven digital display. The
display provides temperatures,
pressures, setpoints and diagnostics
readouts. Flashing display notifies
operator of fault condition and
diagnostics are saved until manually
reset.
BENEFIT: easy troubleshooting and
control
Compressor Protection
All compressors are individually
protected against starting and running
overload, under and over voltages,
phase loss, phase reversal, high winding
temperature and rapid recycling.
BENEFIT: long unit life and added
reliability.
External Control
Several external contacts are provided
for custom control requirements
including time of day scheduling and kW
demand limiting.
BENEFIT: more standard control and
more flexible owner upgrades.
Other Standard Features
• Control power transformer
• Auto lead/lag (on or off)
• Solid-state motor protection
• Insulation (Armaflex II or equal)
• Evaporator and condenser water pump
interlocks
• Filter-dryer
• Built-in loss of chilled water flow
sensors
• Chillers fit through standard single
width door.
The standard ARI rating condition
(54/44°F and 85°F/3.0 gpm per ton) and
IPLV are ARI certified. All other ratings,
including the following, are outside the
scope of the certification program and
are excluded:
•
Glycol.
•
50 Hz.
•
Condenserless models CCAD.
Options
• Trane Integrated Comfort
™
systems
communication
• Generic building automation systems
(BAS) interface
• Chilled water reset (ambient, zone,
return)
• Ice making
• Hot gas bypass
• Remote display/control panel
• Remote running indication and alarm
contact
• Unit-mounted disconnect
• Gauges
• Sound Attenuation
• Neoprene Isolators
• Compressor cycle counter/hour meter
• Water regulating valves
• Condenser water temperature sensors
Water Chiller Systems Business Unit
Features and
Benefits