Carrier 30GB060 - Manual

Advance
Product
Data
Packaged
Air-Cooled
Flotronic™
Liquid Chiller
Nominal 60-Ton Capacity
30GB060
Features
• Unit nominal capacity serves virtually any large com­
mercial or institutional air conditioning need or industrial
process cooling requirement.
• High-tech solid-state electronic control circuitry tested
to U.S. Government Space Agency standards.
• Microprocessor control maintains total control over
chiller functions, permitting intelligent control of the
refrigerant cycle.
• Diagnostic module with digital display included to
permit rapid troubleshooting just by pressing a button.
• Electronic expansion valves (EXV) operate down to
ISpsig (103 kPa) pressure differential. (Ordinary ther­
mostatic expansion valve typically requires lOOpsig
[690 kPa] differential.) This reduces compressor motor
power requirements and improves the unit EER.
• Flotronic™ chiller provides up to 28% efficiency im­
provement over standard 30GB chillers on an annual
basis.
• Additional operating cost savings with precise multiple-
step compressor capacity control.
• Multiple compressors and dual refrigerant circuits help
to protect against the possibility of loss of total capacity.
• Semi-hermetic 06E compressors are serviceable in
the field.
Designed for outdoor installation to minimize required
mechanical room space.
Air-cooled condenser design saves condenser water
and eliminates cooling tower.
Domestic units will operate to 115 F (46 C).
Protection against freeze-up — low water temperature
cutoff and electric heaters protect cooler.
Available as standard with aluminum fins and copper
tubes for normal applications, or with all-copper coils.
Field-installed accessories
• Demand limit control module (required for remote
ON/OFF control)
• Leaving chilled water temperature reset accessory board
• Sensor kit assembly for outdoor or space temperature
reset of chilled water temperature
• Ground current refrigeration circuit protection
• Discharge and suction pressure gage panel
• Oil pressure switch package includes oil pressure
switches (2) for unit
• Capacity control: accessory electric suction cutoff
unloader
• Motormaster® head pressure control (requires unit
modification for low-ambient operation)
Factory-Installed option (FlOP)
Thermal expansion valves — For those situations where
energy savings of the EXV are secondary and equipment
first costs are most important. With this option, the
electronic expansion valve and controls related to the
EXV function, head pressure control and its related
part-load energy savings, are deleted from unit and are
replaced by thermal expansion valves and liquid line
solenoid valves. Minimum operating ambient for FlOP
TXV-equipped units with standard head pressure control
is 32 F. Contact your Carrier representative for details
on operation at temperatures below 32 F. The FlOP model
continues to have microprocessor features and diagnostic
capability. Standard accessories are useable.
2-87 Form 30GB-1APD