Carrier Air Conditioner specifications Service Test See Both main power, Scrolling Marquee Display

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Marquee Display Usage (See Fig. 19 and Tables 7-25) — The Marquee display module provides the

user interface to the ComfortLink™ control system. The dis-

play has up and down arrow keys, an ESCAPE key, and an ENTER key. These keys are used to navigate through the dif- ferent levels of the display structure. See Table 7. Press the

ESCAPE key until the display is blank to move through the top 11 mode levels indicated by LEDs on the left side of the display.

Pressing the ESCAPE and ENTER keys simultaneously will scroll a clear language text description across the display indicating the full meaning of each display acronym. Pressing the ESCAPE and ENTER keys when the display is blank (Mode LED level) will return the Marquee display to its default menu of rotating display items. In addition, the password will be disabled requiring that it be entered again before changes can be made to password protected items.

Clear language descriptions in English, Spanish, French, or Portuguese can be displayed when properly configuring the LANG variable in the Configuration mode, under DISP sub- mode. See Table 16.

NOTE: When the LANG variable is changed to 1, 2, or 3, all appropriate display expansions will immediately change to the new language. No power-off or control reset is required when reconfiguring languages.

When a specific item is located, the display will flash show- ing the operator, the item, followed by the item value and then followed by the item units (if any). Press the ENTER key to stop the display at the item value. Items in the Configuration and Service Test modes are password protected. The display will flash PASS and WORD when required. Use the ENTER and arrow keys to enter the 4 digits of the password. The de- fault password is 1111. The password can only be changed through CCN devices such as ComfortWORKS® and Service Tool.

Changing item values or testing outputs is accomplished in the same manner. Locate and display the desired item. Press ENTER to stop the display at the item value. Press the ENTER key again so that the item value flashes. Use the ar- row keys to change the value or state of an item and press the ENTER key to accept it. Press the ESCAPE key and the item, value, or units display will resume. Repeat the process as required for other items.

See Tables 7-25 for further details.

Service Test (See Table 9) — Both main power and

control circuit power must be on.

MODE

 

Run Status

 

Service Test

 

Temperature

 

Pressures

 

Setpoints

 

Inputs

Alarm Status

Outputs

ESCAPE ENTER

Configuration

Time Clock

 

Operating Modes

 

Alarms

 

Fig. 19 — Scrolling Marquee Display

The Service Test function should be used to verify proper operation of compressors, unloaders, hot gas bypass (if in- stalled), cooler pump and remote alarm relays, EXVs and con- denser fans. To use the Service Test mode, the Enable/Off/ Remote Contact switch must be in the OFF position. Use the display keys and Table 9 to enter the mode and display TEST.

Press ENTER twice so that OFF flashes. Enter the password if

required. Use either arrow key to change the TEST value to the

On position and press ENTER . Switch the Enable/Off/Re-

mote Contact switch to the Enable position (Version 2.3 and

later). Press ESCAPE and the button to enter the OUTS or COMP sub-mode.

Test the condenser fan, cooler pump, and alarm relays by changing the item values from OFF to ON. These discrete out- puts are turned off if there is no keypad activity for 10 minutes. Use arrow keys to select desired percentage when testing ex- pansion valves. When testing compressors, the lead compres- sor must be started first. All compressor outputs can be turned on, but the control will limit the rate by staging one compressor per minute. Compressor unloaders and hot gas bypass relays/ solenoids (if installed) can be tested with compressors on or off. The relays under the COMP sub-mode will stay on for 10 minutes if there is no keypad activity. Compressors will stay on until they are turned off by the operator. The Service Test mode will remain enabled for as long as there is one or more compressors running. All safeties are monitored during this test and will turn a compressor, circuit or the machine off if re- quired. Any other mode or sub-mode can be accessed, viewed, or changed during the TEST mode. The MODE item (Run Sta- tus mode under sub-mode VIEW) will display “0” as long as the Service mode is enabled. The TEST sub-mode value must be changed back to OFF before the chiller can be switched to Enable or Remote contact for normal operation.

Configuring and Operating Dual Chiller Con- trol (See Table 18) — The dual chiller routine is avail- able for the control of two units supplying chilled fluid on a common loop. This control is designed for a parallel fluid flow arrangement only. One chiller must be configured as the master chiller, the other as the slave chiller. An additional leaving fluid temperature thermistor (Dual Chiller LWT) must be installed as shown in Fig. 20 and connected to the master chiller. See Field Wiring section for Dual Chiller LWT sensor wiring.

To configure the two chillers for operation, follow the ex- ample shown in Table 18. The master chiller will be configured with a slave chiller at address 6. Also in this example, the mas- ter chiller will be configured to use Lead/Lag Balance to even out the chiller runtimes weekly. The Lag Start Delay feature will be set to 10 minutes. The master and slave chillers cannot have the same CCN address (CCNA, Configuration mode un- der OPT2). Both chillers must have the control method variable (CTRL, Configuration mode under OPT2) set to ‘3.’ In addi- tion, the chillers must both be connected together on the same CCN bus. Connections can be made to the CCN screw termi- nals on TB3 in both chillers. The master chiller will determine which chiller will be Lead and which will be Lag. The master chiller controls the slave chiller by forcing the slave chiller’s CCN START/STOP variable (CHIL_S_S), control point (CTPT) and demand limit (DEM_LIM).

The master chiller is now configured for dual chiller opera- tion. To configure the slave chiller, only the LLEN and MSSL variables need to be set. Enable the Lead/Lag chiller enable variable (LLEN) as shown Table 18. Similarly, set the Master/ Slave Select variable (MSSL) to SLVE. The variables LLBL, LLBD, an LLDY are not used by the slave chiller.

Refer to Field Wiring section on page 67 for wiring information.

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Contents Contents Safety ConsiderationsIntroduction ContentsGeneral Unit Sizes and Modular Combinations 30GTN,R Major System ComponentsUnit 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 Output Relay Status SwitchesPage 24 V Control Schematic, Unit Sizes 24 V Control Schematic, Unit Sizes 080-110, 230B-315B CCN LEN Data Communication Port Main Base Board 040-110 130-210 Operating DataThermistor T3 and T4 Locations Compressor Thermistor Locations T7 and T8 Manufacturer Regular Wiring Plenum Wiring Alpha 1895 AmericanBelden 8205 Columbia D6451 Manhattan M13402 M64430 Quabik 6130Compressor Protection Control System Module Sizes Stepper Motor 12 VDC CEPL130351 Displacement Compressors Part Load Data Percent Displacement, Standard Units30GUN,R Approx255A 60 Hz 110, 290B360B 50 Hz 330A/B390B 60 Hz 390B 50 HzB1† A1,B1 A1†,A2,B1 A1*,B1†,B2 Unloaded compressor Two unloaders, both unloaded 190, 290A, 360A/B 170, 270AA1*,B1*,B2 150-210 Required Hardware for Additional UnloadersPumpout Head Pressure ControlFAN Arrangement FAN Relay Normal Control PowerScrolling Marquee Display Service Test See Both main powerGEN.O Test ModesSUB-MODE Keypad Range Item Expansion Comment Entry View Run Status Mode and Sub-Mode DirectoryStrt 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 Reading and Changing Chilled Fluid Set Point Inputs Mode and Sub-Mode DirectorySUB-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 OPT2 OPT1CCN EMMRset 240SUB-MODE Keypad Display Item Expansion Comment Entry Rset Example of Temperature Reset Return Fluid ConfigurationSUB-MODE Keypad Entry Display Item Expansion Comment Rset Example of Configuring Dual Chiller Control Master ChillerExample of Configuring Dual Chiller Control Slave Chiller Time Clock Mode and Sub-Mode Directory Example of Compressor Lead/Lag ConfigurationSUB-MODE Keypad Display Item Expansion Comment Entry OPT2 SUB-MODE Keypad Entry Item Expansion Comment Range TimeOperating Mode and Sub-Mode Directory Setting an Occupied Time ScheduleOperating Modes Mode no Item Expansion DescriptionExample of Reading and Clearing Alarms Alarms Mode and Sub-Mode DirectoryMode Keypad SUB-MODE Configuring Temperature ResetConfiguration Entry ExpansionRED LED Entry Expansion Configuration DLS2 Configuring Demand LimitTo 20 mA Demand Limiting TroubleshootingPage T051 Alarm and Alert CodesEWT By Control Method Cause Code Alert GENERATED?FSM LCWT155 T153T170 T173T204 T203T205 T206Electronic Components ServiceOil Charge Compressor OIL RequiredCooler Thermistor Locations Components for Part Number Plugging PlugsCooler Head Bolt Tightening Sequence Typical Tube Sheet Condenser CoilsDimension FAN Type Condenser Fan Adjustment Hz Low Noise Fan Option UnitsRefrigerant Feed Components Each circuit has Printed Circuit Board ConnectorThermistors 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 Switch Cutout CUT-IN Pressure Switch Settings Psig kPa30GTN,R Units 30GUN,R UnitsSystem Check PRE-START-UPTemperature Temperature Limits for Standard UnitsMaximum 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 OPTIONS1 Options Configuration Unit Configuration SettingsDescription Status Default Units Point Description Status Default PointAppendix a CCN Tables OPTIONS2 Options ConfigurationAlarmdef Alarm Definition Table Brodefs Broadcast POC Definition Table Resetcon Temperature Reset and Demand LimitCircaan Circuit a Analog Parameters Aunit General Unit ParametersCircadio Circuit a Discrete Parameters Description Status Units Point ForceableCircbdio Circuit B Discrete Parameters Circban Circuit B Analog ParametersOptions Unit Parameters Description Status Units Point StrthourCurrmods Description Status Units Point DefaultsDescription Status Point CSM/FSM Equipment Table Type 621H, BlockLine Description Point Cooler Fluid Pressure Drop Curves 30GUN,GUR040-110 Appendix B Fluid Drop Pressure CurvesCooler 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 Call for Free Catalog Service TrainingEquipment Chiller Model no START-UP Checklist for Comfortlink Chiller SystemsRemove and use for job file Preliminary Information Preliminary Equipment Check Check box if complete UnitStart-Up System Fluid Volume in Loop Type SystemUnit Start-Up Ccna Description Status Units Value CtrlCcnb 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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