Carrier Air Conditioner specifications Contents, General, Introduction

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CONTENTS (cont)

Page

•LEAD/LAG DETERMINATION

•CAPACITY SEQUENCE DETERMINATION

•CAPACITY CONTROL OVERRIDES

Head Pressure Control . . . . . . . . . . . . . . . . . . . . . . . . . . 27

•COMFORTLINK™ UNITS (With EXV)

•UNITS WITH TXV

Pumpout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

•EXV UNITS

•TXV UNITS

Marquee Display Usage . . . . . . . . . . . . . . . . . . . . . . . . . 29 Service Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Configuring and Operating Dual Chiller

Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Temperature Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Cooling Set Point (4 to 20 mA). . . . . . . . . . . . . . . . . . . 45 Demand Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

•DEMAND LIMIT (2-Stage Switch Controlled)

•EXTERNALLY POWERED DEMAND LIMIT (4 to 20 mA Controlled)

•DEMAND LIMIT (CCN Loadshed Controlled)

TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . 47-52

Compressor Protection Control System

(CPCS) Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Compressor Ground Current (CGF) Board (30GTN,R and 30GUN,R130-210, 230A-315A, and 330A/B-420A/B) . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

EXV Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

•STEP 1 — CHECK PROCESSOR EXV OUTPUTS

•STEP 2 — CHECK EXV WIRING

•STEP 3 — CHECK RESISTANCE OF EXV MOTOR WINDINGS

•STEP 4 — CHECK THERMISTORS THAT CONTROL EXV

•STEP 5 — CHECK OPERATION OF THE EXV

Alarms and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-65

Electronic Components . . . . . . . . . . . . . . . . . . . . . . . . . 53

Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

•COMPRESSOR REMOVAL

•OIL CHARGE

Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

•COOLER REMOVAL

•REPLACING COOLER

•SERVICING THE COOLER

Condenser Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Condenser Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Refrigerant Feed Components. . . . . . . . . . . . . . . . . . . 58

•ELECTRONIC EXPANSION VALVE (EXV)

•MOISTURE-LIQUID INDICATOR

•FILTER DRIER

•LIQUID LINE SOLENOID VALVE

•LIQUID LINE SERVICE VALVE

Thermistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

•LOCATION

•REPLACING THERMISTOR T2

•REPLACING THERMISTORS T1,T5,T6,T7, AND T8

•THERMISTORS T3 AND T4

•THERMISTOR/TEMPERATURE SENSOR CHECK

Page Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

•COMPRESSOR PROTECTION

•LOW OIL PRESSURE PROTECTION

•CRANKCASE HEATERS

•COOLER PROTECTION

Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

•HIGH-SIDE PROTECTION

•LOW-SIDE PROTECTION

•PRESSURE RELIEF VALVES

Other Safeties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

START-UP AND OPERATION. . . . . . . . . . . . . . . . . . 66,67

Actual Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Operating Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

•TEMPERATURES

•VOLTAGE

•MINIMUM FLUID LOOP VOLUME

•FLOW RATE REQUIREMENTS

Operation Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Refrigerant Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

FIELD WIRING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67-70 APPENDIX A — CCN TABLES . . . . . . . . . . . . . . . . 71-79

APPENDIX B — FLUID PRESSURE DROP CURVES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80-87

START-UPCHECKLIST . . . . . . . . . . . . . . . . .CL-1 to CL-8

GENERAL

The model 30GTN,R chillers are air-cooled chillers utiliz- ing refrigerant R-22. The model 30GUN,R chillers are air- cooled chillers utilizing refrigerant R-134a.

Unit sizes 230-420 are modular units which are shipped as separate sections (modules A and B). Installation instructions specific to these units are shipped inside the individual mod- ules. See Tables 1A and 1B for a listing of unit sizes and modu- lar combinations. For modules 230B-315B, follow all general instructions as noted for unit sizes 080-110. For all remaining modules, follow instructions for unit sizes 130-210.

INTRODUCTION

This publication contains Start-Up, Service, Controls, Oper- ation, and Troubleshooting information for the 30GTN,R040- 420 and 30GUN,R040-420 liquid chillers with ComfortLink controls.

The 30GTN,R and 30GUN,R040-420 chillers are equipped with electronic expansion valves (EXVs) or, on size 040-110 FIOP (factory-installed option) units, conventional thermostat- ic expansion valves (TXVs). The size 040-110 FIOP chillers are also equipped with liquid line solenoid valves (LLSV).

NOTE: TXVs are not available on modular units.

Differences in operations and controls between standard and 040-110 FIOP units are noted in appropriate sections in this publication. Refer to the Installation Instructions and the Wiring Diagrams for the appropriate unit for further details.

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Contents Safety Considerations ContentsIntroduction ContentsGeneral Unit Sizes and Modular Combinations 30GUN,R Major System ComponentsUnit Sizes and Modular Combinations 30GTN,R Unit Nominal Section a Section B 30GTN,R Tons Unit 30GTN,RThermistor Designations Control Module CommunicationCarrier Comfort Network CCN Interface Status Switches Output RelayPage 24 V Control Schematic, Unit Sizes 24 V Control Schematic, Unit Sizes 080-110, 230B-315B CCN LEN Data Communication Port Main Base Board Operating Data 040-110 130-210Thermistor T3 and T4 Locations Compressor Thermistor Locations T7 and T8 Belden 8205 Regular Wiring Plenum Wiring Alpha 1895 AmericanManufacturer Columbia D6451 Manhattan M13402 M64430 Quabik 6130Compressor Protection Control System Module Sizes Stepper Motor 12 VDC CEPL130351 30GUN,R Part Load Data Percent Displacement, Standard UnitsDisplacement Compressors Approx110, 290B 255A 60 Hz390B 60 Hz 330A/B360B 50 Hz 390B 50 HzB1† A1,B1 A1†,A2,B1 A1*,B1†,B2 Unloaded compressor Two unloaders, both unloaded 170, 270A 190, 290A, 360A/BA1*,B1*,B2 Required Hardware for Additional Unloaders 150-210Head Pressure Control PumpoutPower FAN Arrangement FAN Relay Normal ControlService Test See Both main power Scrolling Marquee DisplayModes GEN.O TestStrt Run Status Mode and Sub-Mode DirectorySUB-MODE Keypad Range Item Expansion Comment Entry View VersOuts Service Test Mode and Sub-Mode DirectorySUB-MODE Keypad Range Item Expansion Comment Entry Test Set Point Mode and Sub-Mode Directory Temperature Mode and Sub-Mode DirectoryPressure Mode and Sub-Mode Directory SUB-MODE Keypad Range Item Expansion Comment Entry GEN.I Inputs Mode and Sub-Mode DirectoryReading and Changing Chilled Fluid Set Point CrctSUB-MODE Keypad Range Item Expansion Comment Entry GEN.O Outputs Mode and Sub-Mode DirectoryConfiguration Mode and Sub-Mode Directory CCN OPT1OPT2 EMM240 RsetExample of Temperature Reset Return Fluid Configuration SUB-MODE Keypad Display Item Expansion Comment Entry RsetSUB-MODE Keypad Entry Display Item Expansion Comment Rset Example of Configuring Dual Chiller Control Master ChillerExample of Configuring Dual Chiller Control Slave Chiller SUB-MODE Keypad Display Item Expansion Comment Entry OPT2 Example of Compressor Lead/Lag ConfigurationTime Clock Mode and Sub-Mode Directory SUB-MODE Keypad Entry Item Expansion Comment Range TimeSetting an Occupied Time Schedule Operating Mode and Sub-Mode DirectoryMode no Item Expansion Description Operating ModesAlarms Mode and Sub-Mode Directory Example of Reading and Clearing AlarmsConfiguration Configuring Temperature ResetMode Keypad SUB-MODE Entry ExpansionRED LED Entry Expansion Configuration Configuring Demand Limit DLS2Troubleshooting To 20 mA Demand LimitingPage Alarm and Alert Codes T051FSM By Control Method Cause Code Alert GENERATED?EWT LCWT170 T153T155 T173T205 T203T204 T206Oil Charge ServiceElectronic Components Compressor OIL RequiredCooler Thermistor Locations Plugs Components for Part Number PluggingCondenser Coils Cooler Head Bolt Tightening Sequence Typical Tube SheetCondenser Fan Adjustment Hz Low Noise Fan Option Units Dimension FAN TypePrinted Circuit Board Connector Refrigerant Feed Components Each circuit hasThermistors Temperature Sensors Drop a 5K Thermistor Temperature F vs Resistance/VoltageDrop B 5K Thermistor Temperature C vs Resistance/Voltage Temp Voltage Resistance Drop 200,510 30GTN,R Units Pressure Switch Settings Psig kPaSwitch Cutout CUT-IN 30GUN,R UnitsPRE-START-UP System CheckMaximum Ambient Temperature 125 Temperature Limits for Standard UnitsTemperature START-UP and OperationNominal and Minimum Cooler Fluid Flow Rates Field WiringRefrigerant Circuit Hgbps ALMCWP Energy Management Module EMM Wiring Compressor Expansion Board CXB Accessory Wiring Description Status Default Units Point Unit Configuration SettingsOPTIONS1 Options Configuration Description Status Default PointAppendix a CCN Tables OPTIONS2 Options ConfigurationAlarmdef Alarm Definition Table Resetcon Temperature Reset and Demand Limit Brodefs Broadcast POC Definition TableCircadio Circuit a Discrete Parameters Aunit General Unit ParametersCircaan Circuit a Analog Parameters Description Status Units Point ForceableCircban Circuit B Analog Parameters Circbdio Circuit B Discrete ParametersOptions Unit Parameters Strthour Description Status Units PointDescription Status Units Point Defaults CurrmodsDescription Status Point CSM/FSM Equipment Table Type 621H, BlockLine Description Point Appendix B Fluid Drop Pressure Curves Cooler Fluid Pressure Drop Curves 30GUN,GUR040-110Cooler Pressure Drop KEY Appendix B Fluid Drop Pressure CurvesCooler Fluid Pressure Drop Curves 30GUN,GUR130-210 Appendix B Fluid Drop Pressure Curves Cooler Fluid Pressure Drop Curves 30GUN,GUR230B-315B Cooler Fluid Pressure Drop Curves 30GTN,GTR040-110 Cooler Fluid Pressure Drop Curves 30GTN,GTR130-210 Appendix B Fluid Drop Pressure Curves Module B 30GTN,GTR230,245 Module B 30GTN,GTR255,290,315 Service Training Call for Free CatalogEquipment Chiller Model no START-UP Checklist for Comfortlink Chiller SystemsRemove and use for job file Preliminary Information Preliminary Equipment Check Check box if complete System Fluid Volume in Loop Type System UnitStart-UpUnit Start-Up Ccnb Description Status Units Value CtrlCcna BaudSlct Heating Cooling Setpoint Select CND.P RMT.A All Units

Air Conditioner specifications

Carrier Air Conditioners have long been synonymous with reliability and innovation in climate control. Founded by Willis Carrier, the inventor of modern air conditioning, the brand has continuously set industry standards through state-of-the-art technologies and features designed to enhance indoor comfort.

One of the standout features of Carrier air conditioners is their energy efficiency. Many models are equipped with advanced inverter technology, allowing the compressor to adjust its speed based on the cooling demand. This results in decreased energy consumption, which not only reduces utility bills but also lessens the environmental impact. Recognizing the importance of sustainable practices, Carrier has integrated eco-friendly refrigerants into their systems, further promoting energy-efficient operations.

Carrier also emphasizes user comfort through its variable speed systems. These systems maintain consistent temperatures while minimizing temperature fluctuations, ensuring an even distribution of cool air throughout the home. Additionally, many Carrier models come with advanced air filtration systems, designed to capture allergens, dust, and other particulates, thereby improving indoor air quality.

The smart technology featured in Carrier air conditioners plays a key role in modern convenience. Many units are compatible with smart home systems, allowing users to control settings remotely via smartphones or voice-activated devices. With features like programmable thermostats, users can easily set cooling schedules to match their lifestyle, ensuring comfort while maximizing energy savings.

Durability and noise reduction are also central to the Carrier brand. Many models are designed with sound-dampening features, making them some of the quietest units on the market. This is particularly advantageous for residential use, where noise can disrupt daily activities and sleep.

In terms of design, Carrier air conditioners come in various styles and capacities to suit a wide range of spaces, from compact apartment units to large central systems for sprawling homes. Their extensive warranty and service offerings further reinforce Carrier’s commitment to customer satisfaction.

In conclusion, Carrier air conditioners represent a perfect blend of cutting-edge technology, energy efficiency, and user comfort. Their emphasis on sustainability and smart features positions them as a leading choice for homeowners seeking reliable and innovative climate control solutions. Whether for cooling a small room or an entire house, Carrier remains a trusted name in air conditioning.
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