Carrier 040-420 specifications Keypad Directory cant

Page 36

Table 9 - Keypad Directory (cant)

SUBFUNCTION

KEYPAD ENTRY

DISPLAY

COMMENT

1 RUN TIME

r;lm

RUN TIME

Run

Time lnformation

+

HR X

Total Hrs Unit Has a Comp Operating

0

4

HRA X

Circuit

A

Run

Time

cl

c b l

HRB X

Circuit

B

Run

Time

2

STARTS

1 2 1lHlST1

S T A R T S

Starts

Information

c + l

CY x

Cycles from Stage 0 to Stage 1

c + l

CYA X

Circuit A Starts

c + l

CYB X

Circuit B Starts

1ALRMHIST

1Last 5 Alarms

3

ALARM HISTORY

I

I 3 I lH4

ALARM X

ALARM X

ALARM X

>

Alarm Description

ALARM X

J

ALARM X

SET POINT

To read a set point, go to proper subfunction and read desired set point To

change a set point, enter new set point value, then press

ENTR

LOCAL/ENABLE-STOP-CCN switch must be in LOCAL or STOP position,

cl

SUBFUNCTION

KEYPAD ENTRY

DISPLAY

COMMENT

1 SET POINTS

SET POINT

Jnit

Set

Point

CSPl

x

Chiller Fluid Set Point 1

CSP2

x

Chiller

Fluid

Set Point 2

HSPA

X

Head

Pressure Set Point Circuit A

HSPB X

Head Pressure Set Point Circuit B

CRAMP X

Pulldown

Limit

t

2 RESET SET POINTS

RESET

Reset Set Points

CRST2

X*

Cooling

Max

Reset

CREF2 X*

Max Reset Occurs at X mA

or Degree

CRSTI

X*

Cooling

Minimum

Reset

CREFI X*

Min Reset Occurs at X mA

or Degree

3 DEMAND SET POINTS

DEMAND

Demand

Set

Points

DLSl

X*

Demand Switch 1 Set Point

DLS2

X*

Demand Switch 2 Set Point

DMAX X*

4-20

mA

Maximum

Demand

Limit

RMAX X*

Max Demand Limit Occurs at X mA

DMIN

X*

4-20

mA

Minimum Demand

Limit

RMIN

X*

Minimum Demand Limit Occurs at X mA

SHED X”

CCN Loadshed

Amount

4 DATE AND TIME

DATE.TIME

Date, Time and Day of Week

DAY HR.MIN

Day 1 = Mon, 2 = Tues

7 = Sun

Hours are displayed in 24-hr time. Decimal point serves as colon.

MM.DD YR

Month.Day.Year.

When entering date, enter a decimal

point between entries. Each entry must be two numbers.

36

Image 36

Contents Contrc Unit Sizes and Modular Combinations Unit ModelKeypaddisplay Ground Fault Interrupter Source PSIRELAY, B FieldLOCAL/ENABLE-STOP-CCN Switch Positions and Operation Compressor Protection Control Module CpcsThermistor and Transducer Locations ThermistorsCapacity Control StepsLoading Sequence a Loading Sequence B Unit Control 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 Bitt Wtf2Z$’Altt Loading Sequence a Loading Equence B UnitAmrox ’tt$-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 Awrox Drt,t 130, 24OA130,24OA 130, 240AAttll’ Loading Equence a UnitA2.p T3gLoading Sequence a Sequence B Unit $$V LOAD11 Control Size StepsLoadin Sequence B Unit Displacement Compressors UVvW PWprox 8514wB2,B3 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 Capacity Control Steps, 225, 250, 280 cant 2501G Sequence a Loading Sequence B Unit ControlCondenser Fan Sequence FAN Arrangement FAN Numbers Contactor ControlledCondenser Fan Sequence cant FAN Arrangement FAN Numbers~jACToR 30GT250 60 HzKeypad and Display Module Also Called Hsio Keypad and Display Module UsageAccessing Functions and Subfunctions Functions and SubfunctionsFunctions Operation Keypad Display Description Entry ResponseKeypad Directory Keypad Directory cant Status cant Subfunction Keypadentry Display CommentPressure AnalogSubfunction Outputs Display Subfunction Keypad Entry Display Comment OutputsOutputs HgbraKeypad Directory cant Test cant Subfunction Keypad Entry Display Comment OverrideClock Select 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 Example 5 Using Return Water Temperature Reset Keypad Display CommentsCRST2 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 Switch CGFCompressor Contactor Relay 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 TLNContactor Switch Circuit Breaker Transformer LmyTEF4Module STAGE2Module J7-15Thermistor 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.