Carrier FLOTRONIC 30GT040-110 Quick start guide

30GT040-110
FLOTRONIC™
AIR-COOLED CHILLERS
— PERFORMANCE DATA
— CERTIFIED DIMENSION PRINT
— FIELD WIRING DIAGRAM
30GT-41SB
R1998 Carrier Corporation • Syracuse, New York 13221
Form 30GT-41SB Supersedes 30GT-21SB, 30GT-22SB, 30GT-23SB, Printed in U.S.A. 3-98 Catalog No. 513-453
30GT-35SB, 30GT-36SB

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
MMotormastertIII Control MHigh Static Fans
MCopper-Copper Condenser Coils MHot Gas Bypass
MBrine — 15° F to 40° F LWT MNon-Fused Disconnect
MCooler Heater MPrecoated Aluminum Fins
MPart Winding Start MPostcoated Copper Fins
MThermostatic Expansion Valve MPostcoated Aluminum Fins
(TXV)
ACCESSORIES
M
M
M
M
M
M
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FIELD WIRING DIAGRAM
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FIELD WIRING DIAGRAM
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