Carrier 30GB060 User Manual download pdf

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

1 2 3 4 5 6 ... 15 16

Summary of Contents

Page 1 - Liquid Chiller

AdvanceProductDataPackaged Air-Cooled Flotronic™ Liquid ChillerNominal 60-Ton Capacity30GB060Features• Unit nominal capacity serves virtually any lar

Page 2 - Application data

DimensionsDIMENSIONSft-in.(mm)DIM.UNIT30GB060A13-7%(4162)B11-3(3429)C12-5%(3797)D10-0% (3061 )E5-8%2(1730)F5-3%(1619)G4-6%(1387)H7-6(2286)J5-0(1524)CO

Page 3 - Application data (cont)

Electrical data ~ 60 Hz30GBUNITCOMPRESSORStFAN MOTORS*VoltsMCAMORA(Fuse)ICFRLA (ea)LRA (ea)Total MTATotalFans(Ph)FLA (ea) Fan No.MTA(FCB)NameplateSupp

Page 4 - Low-ambient operation

Controls (cont)compressor runs to pump out any refrigerant that has migrated to the cooler. The oil pressure switch is bypassed for one minute du

Page 5 - Electrical/utility interests

Control sequenceOff cycle — During unit off cycle, crankcase and, if ambient temperature is below 36 F (2 C), cooler and control box heaters

Page 6 - Vibration isolation

Typical installationAIRFLOW THROUGH AIR-HANDLING UNITCONTROL WIRING CHILLED WATER PIPINGST - STARTERFD - FUSED DISCONNECTNOTES:1. Wiring and piping

Page 7 - Performance data

Guide specifications1. GENERAL1.1 Furnish and install complete, factory-assembled air-cooled reciprocating liquid chiller units of the type, size

Page 8 - Performance data (cont)

Guide specifications (cont)7.4 Electronic ground current sensing device shall be available as accessory for each compressor to monitor the comp

Page 9

Table of contentsPageFeatures ...1Field-Installed Accessories ...

Page 10 - Dimensions

Application data (cont)MINIMUM COOLER WATER FLOW RATES AND MINIMUM LOOP VOLUMEMINIMUMPRESSUREMINIMUMUNIT 30GBFLOW (1)DROPVOLUME (2)Gpm ft of waterGall

Page 11 - Controls

Application data (cont)per ton (6.5 to 10.8 liters per kW). To achieve this volume, it is often necessary to install a tank in the loop. Tank shoul

Page 12 - Controls (cont)

Correct unit capacity — On glycol performance capacity correction curve, read 0.95.Corrected capacity = 0.95 x determined capacity - 0.95 X 61.3

Page 13 - Control sequence

Time clock shutdown (or other controlled shutdown not associated with leaving chilled water temperature) requires use of accessory demand

Page 14 - Typical installation

Performance dataSTANDARD RATINGS* — REFRIGERANT 22UNITCAPACITYCOMPRESSOR POWER INPUT (kW)FAN POWERCOOLER WATER PRESSURE DROP (ft water)ENERGY EFFICIEN

Page 15 - Guide specifications

Performance data (cont)300-270240-210180-ISO120-90-75-•5 60-1 a.KoUJ5(f>UJa.45-30-27242118-15-12-9-TOTAL COOLER PRESSURE DROP (Water Side)80 90100

Page 16 - Guide specifications (cont)

Performance data (cont)COOLING CAPACITIES - 30GB060CONDENSER ENTERING AIR TEMPERATURE (F)LCWT859095Cap.SDT kWCoolerCap.SDTkWCoolerCap.SDTkWCoolerFlowR

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Carrier 30GB060 User Manual

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