Date:
Supersedes:
30GT040-110 FLOTRONIC™
AIR-COOLED CHILLERS
30GT
Rev.:
41SB
JOB NAME:
LOCATION:
BUYER:
BUYER P.O. #
CARRIER #
UNIT NUMBER:
MODEL NUMBER:
PERFORMANCE DATA CERTIFIED BY:
DATE:
DESCRIPTION
These air-cooled package chillers are factory piped, wired and charged with Refrigerant 22.
Rugged, weatherproof construction and compact design make them ideal for rooftop or ground
level installation. Upward discharge airflow minimizes directional sound and dissipates heat
away from surrounding areas.
FEATURES
Standard one-year warranty.
Multiple reciprocating serviceable-hermetic compressors mounted on spring
isolated rails. Automatically reversible oil pump, thermal overload protec-
tion, suction and discharge service valves.
Calibrated, ambient compensated magnetic-trip circuit breakers with manual
reset provide single-phase and phase-reversal protection.
Insert-type 180-watt crankcase heaters.
High- and low-pressure safety switches.
Dual refrigerant circuits. Each refrigerant circuit contains: Hot gas muffler
for each compressor, excessive pressure relief device, liquid line shut-off
valve, replaceable-core filter drier, moisture indicating sight glass, loss of
oil pressure protection.
Electronic expansion valve in each refrigeration circuit.
Automatic lead-lag feature automatically alternates the lead circuits to
ensure even cycles and run time.
Single point main power connection.
Compressor timed pumpdown cycle at start-up and stopping of each refrig-
eration circuit cooling cycle.
Unit capable of starting with up to 95° F water entering the cooler, with
125° F outdoor air.
Units equipped with electronic expansion valves are capable of starting
and operating down to 0° F outside-air temperatures with wind baffles
installed. Below 0° F outside-air temperature, the unit must be modified
for low-ambient operation. Below 32° F, unit must be equipped with wind
baffles.
Low water flow detection provided by internal control devices.
Control capacity based on leaving-water temperature, compensated by return-
water temperature.
Cooler flow may be either constant or variable.
Provisions can be made for reset by either outdoor, space, or return-water
temperature.
Two-digit alphanumeric diagnostic display and set point panel for set points,
service diagnostics and operational quick tests.
Integral shell-and-tube cooler with dual refrigerant circuits, expanded poly-
vinyl chloride insulation (and electric heater cable for freeze protection)
optional.
Non-ferrous condenser coils with mechanically bonded plate fins and
integral subcooling circuit.
Direct-drive condenser fans and motors are supported by a formed-wire
mount to reduce vibration.
Fan motors are three-phase with permanently lubricated ball bearings and
inherently protected.
Multiple fans are used for head pressure control during intermediate
season.
Unit can be equipped (accessory) with a two-point demand limit control
(each 0-50 and 50-100%) activated remotely by an electric signal.
The unit cabinet consists of galvanized steel casing, zinc phosphatized,
with an electrostatically applied baked enamel finish, capable of withstand-
ing a 500-hour salt spray test.
Hinged control box access panels.
Alarm circuit wiring standard.
PERFORMANCE DATA
UNIT
Capacity (tons)
Compressor Power Input
kW
Unit Power Input
kW
Minimum Outdoor Operating Temperature
°F
Capacity Control Steps
Minimum Capacity
%
Refrigerant
Condenser Entering Air Temperature
°F
Saturated Discharge Temperature
°F
COOLER
Entering Water Temperature
°F
Leaving Water Temperature
°F
Chilled Water Flow
Gpm
Chilled Water Pressure Drop
ft wg
Fouling Factor
Fluid
ELECTRICAL DATA
Power Supply to Unit
Volts
Ph
Hz
Power Supply to Control Circuit
Volts
Ph
Hz
Maximum Instantaneous Current Flow
Amps
Minimum Circuit Amps
Maximum Fuse Amps
Control Circuit Fuse Amps
FACTORY-INSTALLED OPTIONS
M
Motormaster
t
III Control
M
High Static Fans
M
Copper-Copper Condenser Coils
M
Hot Gas Bypass
M
Brine — 15° F to 40° F LWT
M
Non-Fused Disconnect
M
Cooler Heater
M
Precoated Aluminum Fins
M
Part Winding Start
M
Postcoated Copper Fins
M
Thermostatic Expansion Valve
M
Postcoated Aluminum Fins
(TXV)
ACCESSORIES
M
M
M
M
M
M
2
Summary of Contents for FLOTRONIC 30GT040-110
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Page 8: ...FIELD WIRING DIAGRAM 8 ...
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