Carrier Air Conditioner specifications

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2.Make sure that thermistor leads are connected to the proper pin terminals at the J5 connector on EXV board and that thermistor probes are located in proper position in the refrigerant circuit.

When these checks have been completed, the actual opera- tion of the EXV can be checked by using the procedures out- lined in Step 5 — Check Operation of the EXV section below.

STEP 5 — CHECK OPERATION OF THE EXV — Use the following procedure to check the actual operation of the EXVs. The ENABLE/OFF/REMOTE contact switch must be in the OFF position.

1.Close the liquid line service valve for the circuit to be checked and run through the appropriate service test to pump down the low side of the system. Run lead com- pressor for at least 30 seconds to ensure all refrigerant has been pumped from the low side and that the EXV has been driven fully open (1500 steps).

NOTE: Do not use the Emergency ON-OFF switch to recycle the control during this step.

2.Turn off the compressor circuit breaker(s) and the control circuit power and then turn the Emergency ON/OFF switch to the OFF position. Close compressor service valves and remove any remaining refrigerant from the low side of the system.

3.Carefully loosen the 2-1/8in. nut. Do not twist the valve. Remove the motor canister from the valve body using caution to avoid damage to the o-ring seal. If the EXV plug was disconnected during this process reconnect it after the motor canister is removed.

4.Note position of lead screw (see Fig. 15). If valve has re- sponded properly to processor signals in Step 5.1 above, the lead screw should be fully retracted.

5.Recycle the control by turning the Emergency ON-OFF switch to the ON position. This puts the control in initial- ization mode. During the first 60 seconds of the initializa- tion mode, each valve is driven to the fully closed posi- tion (1500 steps) by the processor. Observe the move- ment of the lead screw. It should be smooth and uniform from the fully retracted (open) to the fully extended (closed) position.

6.When the test has been completed, carefully reassemble expansion valve. Apply a small amount of O-ring grease to the housing seal O-ring before installing the motor can- ister. Be careful not to damage the O-ring. Tighten the motor nut to 15 to 25 lb-ft (20 to 34 N-m). Evacuate the low side of the open refrigerant circuit. Open compressor service valves and close compressor circuit breakers.

Open liquid line service valve. Check for any refrigerant leaks. Turn the ENABLE/OFF/REMOTE switch back to ENABLE or REMOTE and allow the unit to operate. Verify proper unit operation.

NOTE: The EXV orifice is a screw-in type and may be removed for inspection and cleaning. Once the motor canister is removed the orifice can be removed by using the orifice removal tool (part no. TS429). A slot has been cut in the top of the orifice to facilitate removal. Turn orifice counterclockwise to remove. A large screwdriver may also be used.

When cleaning or reinstalling orifice assembly be careful not to damage orifice assembly seals. The bottom seal acts as a liquid shut-off, replacing a liquid line solenoid valve. If the bot- tom seal should become damaged it can be replaced. Remove the orifice. Remove the old seal. Using the orifice as a guide, add a small amount of O-ring grease, to the underside of the or- ifice. Be careful not to plug the vent holes. Carefully set the seal with the O-ring into the orifice. The O-ring grease will hold the seal in place. If the O-ring grease is not used, the seal O-ring will twist and bind when the orifice is screwed into the EXV base. Install the orifice and seal assembly. Remove the orifice to verify that the seal is properly positioned. Clean any O-ring grease from the bottom of the orifice. Reinstall the ori- fice and tighten to 100 in.-lb (11 N-m). Apply a small amount of O-ring grease to the housing seal O-ring before installing the motor canister. Reinstall the motor canister assembly. Tighten the motor nut to 15 to 25 ft-lb (20 to 34 N-m).

Alarms and Alerts — These are warnings of abnormal or fault conditions, and may cause either one circuit or the whole unit to shut down. They are assigned code numbers as described in Table 29.

Automatic alarms will reset without operator intervention if the condition corrects itself. The following method must be used to reset manual alarms:

Before resetting any alarm, first determine the cause of the alarm and correct it. Enter the Alarms mode indicated by the LED on the side of the Scrolling Marquee Display. Press

ENTER and until the sub-menu item RCRN “RESET

ALL CURRENT ALARMS” is displayed. Press ENTER .

The control will prompt the user for a password, by displaying

PASS and WORD. Press ENTER to display the default pass-

word, 1111. Press ENTER for each character. If the password

has been changed, use the arrow keys to change each individu-

al character. Toggle the display to “YES” and press ENTER . The alarms will be reset.

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Contents Safety Considerations ContentsContents GeneralIntroduction Major System Components Unit Sizes and Modular Combinations 30GTN,RUnit Sizes and Modular Combinations 30GUN,R Unit Nominal Section a Section B 30GTN,R Tons Unit 30GTN,RControl Module Communication Carrier Comfort Network CCN InterfaceThermistor Designations 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 Regular Wiring Plenum Wiring Alpha 1895 American ManufacturerBelden 8205 Columbia D6451 Manhattan M13402 M64430 Quabik 6130Compressor Protection Control System Module Sizes Stepper Motor 12 VDC CEPL130351 Part Load Data Percent Displacement, Standard Units Displacement Compressors30GUN,R Approx110, 290B 255A 60 Hz330A/B 360B 50 Hz390B 60 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 TestRun Status Mode and Sub-Mode Directory SUB-MODE Keypad Range Item Expansion Comment Entry ViewStrt VersService Test Mode and Sub-Mode Directory SUB-MODE Keypad Range Item Expansion Comment Entry TestOuts Temperature Mode and Sub-Mode Directory Pressure Mode and Sub-Mode DirectorySet Point Mode and Sub-Mode Directory Inputs Mode and Sub-Mode Directory Reading and Changing Chilled Fluid Set PointSUB-MODE Keypad Range Item Expansion Comment Entry GEN.I CrctOutputs Mode and Sub-Mode Directory Configuration Mode and Sub-Mode DirectorySUB-MODE Keypad Range Item Expansion Comment Entry GEN.O OPT1 OPT2CCN EMM240 RsetExample of Temperature Reset Return Fluid Configuration SUB-MODE Keypad Display Item Expansion Comment Entry RsetExample of Configuring Dual Chiller Control Master Chiller Example of Configuring Dual Chiller Control Slave ChillerSUB-MODE Keypad Entry Display Item Expansion Comment Rset Example of Compressor Lead/Lag Configuration Time Clock Mode and Sub-Mode DirectorySUB-MODE Keypad Display Item Expansion Comment Entry OPT2 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 AlarmsConfiguring Temperature Reset Mode Keypad SUB-MODEConfiguration Entry ExpansionRED LED Entry Expansion Configuration Configuring Demand Limit DLS2Troubleshooting To 20 mA Demand LimitingPage Alarm and Alert Codes T051By Control Method Cause Code Alert GENERATED? EWTFSM LCWT153 T155T170 T173T203 T204T205 T206Service Electronic ComponentsOil Charge 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 5K Thermistor Temperature F vs Resistance/Voltage Drop BDrop a 5K Thermistor Temperature C vs Resistance/Voltage Temp Voltage Resistance Drop 200,510 Pressure Switch Settings Psig kPa Switch Cutout CUT-IN30GTN,R Units 30GUN,R UnitsPRE-START-UP System CheckTemperature Limits for Standard Units TemperatureMaximum Ambient Temperature 125 START-UP and OperationField Wiring Refrigerant CircuitNominal and Minimum Cooler Fluid Flow Rates ALM CWPHgbps Energy Management Module EMM Wiring Compressor Expansion Board CXB Accessory Wiring Unit Configuration Settings OPTIONS1 Options ConfigurationDescription Status Default Units Point Description Status Default PointOPTIONS2 Options Configuration Alarmdef Alarm Definition TableAppendix a CCN Tables Resetcon Temperature Reset and Demand Limit Brodefs Broadcast POC Definition TableAunit General Unit Parameters Circaan Circuit a Analog ParametersCircadio Circuit a Discrete 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 CurrmodsCSM/FSM Equipment Table Type 621H, Block Line Description PointDescription Status Point Appendix B Fluid Drop Pressure Curves Cooler Fluid Pressure Drop Curves 30GUN,GUR040-110Appendix B Fluid Drop Pressure Curves Cooler Fluid Pressure Drop Curves 30GUN,GUR130-210Cooler Pressure Drop KEY 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 CatalogSTART-UP Checklist for Comfortlink Chiller Systems Remove and use for job file Preliminary InformationEquipment Chiller Model no Preliminary Equipment Check Check box if complete System Fluid Volume in Loop Type System UnitStart-UpUnit Start-Up Description Status Units Value Ctrl CcnaCcnb 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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