Carrier Air Conditioner Configuring Temperature Reset, Mode Keypad SUB-MODE, Entry Expansion

Page 44

Table 26 — Configuring Temperature Reset

MODE

KEYPAD

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

 

ENTRY

 

ENTRY

 

 

EXPANSION

 

 

ENTER

DISP

ENTER

TEST

ON/OFF

TEST DISPLAY LEDS

 

 

 

 

 

 

 

UNIT

ENTER

TYPE

 

UNIT TYPE

 

 

 

 

 

 

 

 

OPT1

ENTER

FLUD

 

COOLER FLUID

 

 

 

 

 

 

 

 

OPT2

ENTER

CTRL

 

CONTROL METHOD

 

 

 

 

 

 

 

 

RSET

ENTER

CRST

 

COOLING RESET TYPE

0 = No Reset

 

 

 

 

 

 

1 = 4 to 20 mA Input (EMM required)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Connect to EMM J6-2,5)

CONFIGURATION

 

 

 

 

 

 

2 = Outdoor-Air Temperature

 

 

 

 

 

 

(Connect to TB5-7,8)

 

 

 

 

 

 

 

3 = Return Fluid

 

 

 

 

 

 

 

4 = Space Temperature (Connect to

 

 

 

 

 

 

 

TB5-5,6)

 

 

 

 

 

 

 

Default: 125 F (51.7 C)

 

 

 

 

CRT1

XXX.X F

NO COOL RESET TEMP

Range: 0° to125 F

 

 

 

 

 

 

 

Set to 4.0 for CRST= 1

 

 

 

 

 

 

 

Default: 0° F (–17.8 C)

 

 

 

 

CRT2

XXX.X F

FULL COOL RESET TEMP

Range: 0° to 125 F

 

 

 

 

 

 

 

Set to 20.0 for CRST=1

 

 

 

 

DGRC

XX.X °F

DEGREES COOL RESET

Default: 0° F (0° C)

 

 

 

 

Range: –30 to 30° F (–16.7 to 16.7° C)

 

 

 

 

 

 

 

The following are examples of outdoor air and space tem- perature resets:

LEGEND

LEGEND

LWT — Leaving Water (Fluid) Temperature

LWT — Leaving Water (Fluid) Temperature

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Contents Safety Considerations ContentsIntroduction ContentsGeneral 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,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 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 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 Inputs Mode and Sub-Mode Directory Reading and Changing Chilled Fluid Set PointSUB-MODE Keypad Range Item Expansion Comment Entry GEN.I CrctSUB-MODE Keypad Range Item Expansion Comment Entry GEN.O Outputs Mode and Sub-Mode DirectoryConfiguration Mode and Sub-Mode Directory OPT1 OPT2CCN 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 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 Drop a 5K Thermistor Temperature F vs Resistance/VoltageDrop B 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 OperationNominal and Minimum Cooler Fluid Flow Rates Field WiringRefrigerant Circuit Hgbps ALMCWP Energy Management Module EMM Wiring Compressor Expansion Board CXB Accessory Wiring Unit Configuration Settings OPTIONS1 Options ConfigurationDescription Status Default Units Point Description Status Default PointAppendix a CCN Tables OPTIONS2 Options ConfigurationAlarmdef Alarm Definition Table 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 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 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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