Carrier 040-420 Example 9 Using the Schedule Function cant, Example 10 Holiday Schedule Function

Page 47

Example 9 - Using the Schedule Function (cant)

KEENYTPRAYD

I D I S P L A Y

COMMENT

PROGRAMMING PERIOD 3:

 

 

Example 10 - Holiday Schedule Function

E N T E R

D I S P L A Y

 

H O L I D A Y

PERIOD 3

occ 00 a0

occ 7 00

UN0 00 00

UN0 21 30

MON NO

TUE NO

W E D N O

WED YES

THUR NO

FRI NO

Define schedule period 3

Start of occupied lime

Tyo$e;;rne will start

Start of unoccupied time (end of period 3). For this

example, period 3 should end at 21:30 (9:30 p m )

Period 3 ends at 22:30 (9:30 p m )

Check to be sure that Monday and Tuesday are

flagged for period 3

Wednesday is flagged no, change to yes

Wednesday is now flagged yes for period 3

Check to be sure that all other days are flagged no

JAN01 02 (Includes Jan Ist

 

and

2nd)

APR17

01 (Includes April 17th)

MAY21 01 (Includes May 21 st)

JUL03 01 (Includes July 3rd)

JULO4 01 (Includes July 4th)

SEP07 01 (Includes Sep 7th)

NOV26

02 (Includes Nov 26th

 

and

27th)

DEC24 02 (Includes Dee 24th

 

and

25th)

DECBO 02 (includes Dee 30th

 

and 3lst)

N E W

MAY25 01 (Includes May 25th)

SAT NO

SUN NO

Period 4 and 5 can be programmed in the same manner, flagging Thursday and Friday yes for period 4 and Saturday yes for period 5 aFor this example, periods 6, 7, and 8 are not used: they should be programmed OCC 00.00, UN0 00.00.

NOTE: When a day is flagged yes for 2 overlapping peri-

N E W

N E W

N E W

N E W

NEW (30TH HOLlDAY)

NEW indicates a holiday that has not been assigned yet.

ods, occupied time will take precedence over unoccupied time. Occupied times can overlap in the schedule with no consequence.

To extend an occupied mode beyond its normal termina- tion for a one-time schedule override, program as shown below:

Holidav Schedule - Press 171 ri b[ to schedule up to

30 holiday periods. All holidays are entered with numerical values. First, the month (01 to 12), then the day (01 to 3 l), then the duration of the holiday period in days.

Examples: July 24 is 07.04.01.

Dee 25 - 26 is 12.25.02

If any of the 30 holiday periods are not used, the display shows NEW .

See Example 10.

oo-

I-

2 -

3 -

4 -

5 -

6- t-

8-

9-

IO - II - I2 - I3 - 14 - I5 - I6 - I7 - 18 - 19 -

20-

21 -

YEC

SAT IlJh

-

-

#30-G3 v

1PERIODI

‘EYo[

‘ERIO 3

mOCCUPIED

I UNOCCUPIED

Fig. 9 - Sample Time Schedule

47

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Contents Contrc Unit Model Unit Sizes and Modular CombinationsField Keypaddisplay Ground Fault InterrupterSource PSI RELAY, BThermistors LOCAL/ENABLE-STOP-CCN Switch Positions and OperationCompressor Protection Control Module Cpcs Thermistor and Transducer LocationsSteps CapacityControl Steps Loading Sequence a Loading Sequence B Unit ControlLoading Sequence a Loading Sequence B Unit Capacity Control Steps, 040-070 cant060A\~**Hz FBI Capacity Control Steps, 040-070 cantOy&ya A4l&pi’ Aiti08Aqy,y BP’ StepsLoading Loading Sequence B Unit Control Loading Sequence a Loading Equence B Unit Altt BittWtf2Z$’ Altt$-t&Z3 Amrox’tt Alt,Blv Displacement Compressors UWrW Arwox A2.p $#l 110 50 HzLoading Sequence a Quence B Unit Control Equence B Displacement Compressors MvroxLoading Equence a 130, 240A Awrox Drt,t130, 24OA 130,24OALoading Equence a Unit Attll’Loading Sequence a Sequence B Unit A2.pT3g $$V Control Size Steps LOAD11Loadin Sequence B Unit Al% Al’,BI Displacement Compressors UVvW PWprox8514w B2,B3Loading Sequence B Unit Loac \IG Sequence a Loading Sequence B Unit 30GT Displacement Compressors AwoxCapacity Control Steps, 225, 250,280 30GT Capacity Control Steps, 225, 250,280 cantLoac Loading Sequence B Unit Control Capacity Control Steps, 225, 250, 280 cant250 1G Sequence aFAN Arrangement FAN Numbers Contactor Controlled Condenser Fan Sequence30GT250 60 Hz Condenser Fan Sequence cantFAN Arrangement FAN Numbers ~jACToRKeypad and Display Module Usage Keypad and Display Module Also Called HsioOperation Keypad Display Description Entry Response Accessing Functions and SubfunctionsFunctions and Subfunctions FunctionsKeypad Directory Analog Keypad Directory cant Status cantSubfunction Keypadentry Display Comment PressureHgbra Subfunction Outputs DisplaySubfunction Keypad Entry Display Comment Outputs OutputsQzq Keypad Directory cant Test cantSubfunction Keypad Entry Display Comment Override Clock SelectKeypad Directory Schedule cant Keypad Directory cant Service cord Keypad Directory cant Operationat and Mode Display Codes Example 1 Reading Alarm CodesKeypad Display Local on Cool Alarms Modes Local on M O D EExample 2 Reading Current Operating Modes Keypad Display Comments Entry Response Example 3 Using Test FunctionExample 4 Reading and Changing Chilled Water Set Point Crsti Example 5 Using Return Water Temperature ResetKeypad Display Comments CRST2Reset Reference Temperature Outdoor AIR 1OR Space Temp Example 6 Changing Reset TypeEKE Ppiq Keypad Display Entry ResponseFLD CFG Ertyp Lstyp Demand MAX Demand Kimax = Example 8 Setting Time of Day Day of WeekDemand Limiting Adjustable Field Configurations Factory Configuration KeystrokesDisplay Example 9 Using the Schedule FunctionExample 10 Holiday Schedule Function Example 9 Using the Schedule Function cantComplete Unit Stoppage Complete unit stop Typical Stoppage Faults and Reset TypesAction Taken Probable Cause N T R O L Alarm CodesPage Page R ’ S ’ SlTnanz SNB SwitchCGF Compressor Contactor RelayFig. IOD 24-V Safety Circuit Wiring 225, 250, and 280 Units Electronil c Expansion Valve EXV Page Thermistor and Pressure Transducer Locations Associated Modular Units Refrigerant Temperature Sensor T7, T8 040-210Suction Pressure Transducer 2i.b Voltage Resistance Drop Voltage DropLine Transducer Each Compressor Equalizer OIL Pressure Suction Pressure Sight GlassPSIO, SIO Address Selector Control ModulesProcessor Module Psio Sensor Bus Wiring CommunicationsComm Troubleshooting Circuit Circuit B Or2 30GN190-210 3OGT225,250,280 Standard and Accessory Unloaders1NO. of Accessory 080-110 SO/SO Hz and 130 60 Hz Accessory Unloader Control WiringTLN HgbprSTAGE2 Contactor Switch Circuit Breaker TransformerLmyTEF4 ModuleElJ7-16 ModuleJ7-15 ThermistorRemote Dual Set Point Control InstallationPage 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.

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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.
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