Carrier 040-420 specifications Keypad Directory

Page 30

Table 9 - Keypad Directory

STATUS

KEYPAD ENTRY

DISPLAY

1

COMMENT

Refer to Automatic Display Operation on page 28

2 ALARMS

I

X ALARMS

Number of Tripped Alarms

ALARM X

ALARM X

ALARM X

Displays Tripped Alarms

ALARM X

ALARM X

>

3 MODES

X MODES

Number of Modes in Effect

MODE X

MODE X

Displays Mode in Effect

MODE X

MODE X

>

4 STAGE

STAGE

Capacity

Staging

Information

S T A G E X

Number of Requested Stages

CAPT X

Percent

of Total

Capacity

CAPA X

Percent Circuit A Capacity

6;,;

CAP0 X

Percent Circuit 6 Capacity

LMT X*

Demand

Limit

Set Point

LOAD X*

Load

Limit Set

Point

CIRA X

Circuit A Compressor Relay Status

CIRB X

Circuit B Compressor Relay Status

S M Z

X

Load/Unload Factor for Compressors

Factor = 1 Unloader Factor = 0 6

5

SET POINT

SET

POINT

Fluid

Set Point

Information

SP x

Set

Point

M S P

X

Modified Set Point = Set Point

+ Reset

TWX

Cooler

Leaving

Fluid

Temperature

TEMPS

Temperature

Information

6

TEMPERATURE

EWTX

Cooler

Entering

Fluid

Temperature

L W T

X

Cooler

Leaving

Fluid

Temperature

SCTA X

Circuit A Saturated Condenser Temperature

S S T A X

Circuit A Saturated Suction Temperature

CTA X

Compressor Al Suction Temperature

SHA X

Circuit A Suction Superheat

LEGEND

*Must be configured

CCN

- Carrier Comfort

Network

j-If

applicable

E X V

- Electronic Expansion Valve

M O P

- Maximum Operating Pressure

3 0

Image 30

Contents Contrc Unit Sizes and Modular Combinations Unit ModelRELAY, B Keypaddisplay Ground Fault InterrupterSource PSI FieldThermistor and Transducer Locations LOCAL/ENABLE-STOP-CCN Switch Positions and OperationCompressor Protection Control Module Cpcs ThermistorsLoading Sequence a Loading Sequence B Unit Control CapacityControl Steps StepsCapacity Control Steps, 040-070 cant 060A\~**HzLoading Sequence a Loading Sequence B Unit Capacity Control Steps, 040-070 cant Oy&yaFBI Aiti 08Aqy,yA4l&pi’ Steps BP’Loading Loading Sequence B Unit Control Altt Altt BittWtf2Z$’ Loading Sequence a Loading Equence B UnitAmrox ’tt$-t&Z3 Displacement Compressors UWrW Arwox A2.p $#l 110 50 Hz Loading Sequence a Quence B Unit ControlAlt,Blv Displacement Compressors Mvrox Loading Equence aEquence B 130,24OA Awrox Drt,t130, 24OA 130, 240AAttll’ Loading Equence a UnitA2.p T3gLoading Sequence a Sequence B Unit $$V LOAD11 Control Size StepsLoadin Sequence B Unit B2,B3 Displacement Compressors UVvW PWprox8514w Al% Al’,BILoading Sequence B Unit 30GT Displacement Compressors Awox Capacity Control Steps, 225, 250,280Loac \IG Sequence a Loading Sequence B Unit Capacity Control Steps, 225, 250,280 cant Loac30GT 1G Sequence a Capacity Control Steps, 225, 250, 280 cant250 Loading Sequence B Unit ControlCondenser Fan Sequence FAN Arrangement FAN Numbers Contactor Controlled~jACToR Condenser Fan Sequence cantFAN Arrangement FAN Numbers 30GT250 60 HzKeypad and Display Module Also Called Hsio Keypad and Display Module UsageFunctions Accessing Functions and SubfunctionsFunctions and Subfunctions Operation Keypad Display Description Entry ResponseKeypad Directory Pressure Keypad Directory cant Status cantSubfunction Keypadentry Display Comment AnalogOutputs Subfunction Outputs DisplaySubfunction Keypad Entry Display Comment Outputs HgbraClock Select Keypad Directory cant Test cantSubfunction Keypad Entry Display Comment Override QzqKeypad Directory Schedule cant Keypad Directory cant Service cord Keypad Directory cant Example 1 Reading Alarm Codes Operationat and Mode Display CodesLocal on Cool Alarms Modes Local on M O D E Example 2 Reading Current Operating ModesKeypad Display Example 3 Using Test Function Example 4 Reading and Changing Chilled Water Set PointKeypad Display Comments Entry Response CRST2 Example 5 Using Return Water Temperature ResetKeypad Display Comments CrstiExample 6 Changing Reset Type Reset Reference Temperature Outdoor AIR 1OR Space TempEKE Keypad Display Entry Response FLD CFG Ertyp Lstyp DemandPpiq Example 8 Setting Time of Day Day of Week Demand LimitingMAX Demand Kimax = Factory Configuration Keystrokes Adjustable Field ConfigurationsExample 9 Using the Schedule Function DisplayExample 9 Using the Schedule Function cant Example 10 Holiday Schedule FunctionTypical Stoppage Faults and Reset Types Complete Unit Stoppage Complete unit stopAlarm Codes Action Taken Probable Cause N T R O LPage Page ’ Sl R ’ STnanz Compressor Contactor Relay SwitchCGF SNBFig. IOD 24-V Safety Circuit Wiring 225, 250, and 280 Units Electronil c Expansion Valve EXV Page Thermistor and Pressure Transducer Locations Refrigerant Temperature Sensor T7, T8 040-210 SuctionAssociated Modular Units Pressure Transducer 2i.b Voltage Drop Voltage Resistance DropEqualizer OIL Pressure Suction Pressure Sight Glass Line Transducer Each CompressorControl Modules PSIO, SIO Address SelectorSensor Bus Wiring Communications Processor Module PsioComm Troubleshooting Standard and Accessory Unloaders 1NO. of AccessoryCircuit Circuit B Or2 30GN190-210 3OGT225,250,280 Accessory Unloader Control Wiring 080-110 SO/SO Hz and 130 60 HzHgbpr TLNModule Contactor Switch Circuit Breaker TransformerLmyTEF4 STAGE2Thermistor ModuleJ7-15 ElJ7-16Installation Remote Dual Set Point ControlPage Page Copyright 1994 Carrier Corporation

040-420 specifications

The Carrier 040-420 is a highly regarded commercial HVAC unit specifically designed for efficient heating and cooling in medium- to large-sized buildings. Known for its reliability and advanced technology, this system is ideal for a variety of applications ranging from offices to industrial spaces.

One of the main features of the Carrier 040-420 is its energy efficiency. The unit utilizes advanced compressors and a high-efficiency heat exchanger, which work together to minimize energy consumption while maximizing performance. This is crucial in today’s energy-conscious environment, as businesses strive to reduce operational costs and their carbon footprint. The unit also boasts a high SEER (Seasonal Energy Efficiency Ratio) rating, making it an attractive option for those looking to lower their utility bills.

Equipped with advanced inverter-driven technology, the Carrier 040-420 allows for precise control of indoor climate conditions. This means that the system can adjust its output according to the actual cooling or heating demand of the space, resulting in enhanced comfort and reduced energy waste. The inverter technology also contributes to quieter operation, allowing for a more pleasant indoor environment.

Another feature that sets the Carrier 040-420 apart is its smart controls. The unit can be integrated with Carrier’s Building Automation Systems, enabling remote monitoring and management. This allows facility managers to optimize energy use and immediately respond to any performance issues. Additionally, the unit is compatible with various control interfaces, making it easy for users to adjust settings or schedule operations according to the building's occupancy patterns.

The robust design of the Carrier 040-420 ensures longevity and durability, even in harsh environmental conditions. Its weatherproof casing protects the internal components, enhancing the unit's performance and reliability over time. Maintenance is simplified with accessible design features, allowing technicians to conduct service checks and repairs without extensive downtime.

Overall, the Carrier 040-420 stands out as a modern HVAC solution that combines energy efficiency, advanced technologies, and user-friendly features. Its commitment to performance and sustainability makes it an ideal choice for businesses looking to enhance comfort while being mindful of their energy consumption. With its blend of innovation and reliability, the Carrier 040-420 continues to be a preferred option in the commercial HVAC market.