Carrier Air Conditioner specifications Cooler Thermistor Locations

Page 54

7.Remove the liquid lines by breaking the silver-soldered joints at the cooler liquid line nozzles.

8.On 30GTN,GTR and 30GUN,R 080-110 and 230B-315B units, remove the vertical support(s) under the condenser coil in front of the cooler. Provide temporary support as needed. Save all screws for reinstallation later.

9.Remove the screws in the cooler feet. Slide the cooler slightly to the left to clear the refrigerant tubing. Save all screws.

Removing the cooler can be accomplished in one of 2 ways, depending on the jobsite. Either continue sliding the cooler to- ward the end of the unit opposite the tubing and carefully re- move, or pivot the cooler and remove it from the cooler side of the unit.

REPLACING COOLER — To replace the cooler:

1.Insert new cooler carefully into place. Reattach the screws into the cooler feet (using saved screws).

On 30GTN,GTR and 30GUN,GUR080-110 and 230B- 315B units, reattach the 2 vertical supports under the condenser coil in front of the cooler using screws saved.

2.Replace the liquid lines and solder at the cooler liquid line nozzles.

3.Rebolt the suction flanges onto the cooler head using bolts saved during removal. Use new gaskets for the suc- tion line flanges. Use compressor oil to aid in gasket seal- ing and tighten the suction flange bolts to 70 to 90 ft-lb (94 to 122 N-m).

NOTE: The suction flange has a 4-bolt pattern. See Carrier specified parts for replacement part number, if necessary.

4.Using adhesive, reinstall the cooler insulation on the re- frigerant connection end of the cooler.

5.Reinstall the thermistors. Refer to Thermistors section on page 59, and install as follows:

a.Apply pipe sealant to the 1/4-in. NPT threads on the replacement coupling for the fluid side, and install it in place of the original.

Do not use the packing nut to tighten the coupling. Damage to the ferrules will result.

b.Reinstall thermistor T1 well, and insert thermistor T1 into well.

c.Install thermistor T2 (entering fluid temperature) so that it is not touching an internal refrigerant tube, but so that it is close enough to sense a freeze condition. The recommended distance is 1/8 in. (3.2 mm) from the cooler tube. Tighten the pack- ing nut finger tight, and then tighten 11/4 turns more using a back-up wrench.

6.Install the cooler heater and conduit (if equipped), con- necting the wires as shown in the unit wiring schematic located on the unit.

7.Close the air vent at the top of the cooler, and close the drain on the bottom of the cooler near the leaving fluid outlet. Both the drain and the air vent are located on the leaving fluid end of the cooler. See Fig. 24.

8.Reconnect the cooler fluid piping and strainer, and open the shutoff valves (if installed). Purge the fluid of all air before starting unit.

9.Open the discharge service valves, close the circuit break- ers, and open the liquid line service valves for the compressors.

SERVICING THE COOLER — When cooler heads and par- tition plates are removed, tube sheets are exposed showing ends of tubes.

Certain tubes in the 10HB coolers cannot be removed. Eight tubes in the bundle are secured inside the cooler to the baffles and cannot be removed. These tubes are marked by a dimple on the tube sheet. See Fig. 25. If any of these tubes have developed a leak, plug the tube(s) as described under Tube Plugging section on page 55.

LIQUID

CONNECTION

Fig. 24 — Cooler Thermistor Locations

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Contents Safety Considerations ContentsContents GeneralIntroduction 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,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 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 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 SUB-MODE Keypad Range Item Expansion Comment Entry GEN.I Inputs Mode and Sub-Mode DirectoryReading and Changing Chilled Fluid Set Point CrctOutputs Mode and Sub-Mode Directory Configuration Mode and Sub-Mode DirectorySUB-MODE Keypad Range Item Expansion Comment Entry GEN.O CCN OPT1OPT2 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 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 5K Thermistor Temperature F vs Resistance/Voltage Drop BDrop a 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 OperationField Wiring Refrigerant CircuitNominal and Minimum Cooler Fluid Flow Rates ALM CWPHgbps Energy Management Module EMM Wiring Compressor Expansion Board CXB Accessory Wiring Description Status Default Units Point Unit Configuration SettingsOPTIONS1 Options Configuration Description Status Default PointOPTIONS2 Options Configuration Alarmdef Alarm Definition TableAppendix a CCN Tables 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 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 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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