I write program using ir_Hitachi liberary but it is not working

[MarkEvens]

#include <Arduino.h>
#include <IRremoteESP8266.h>
#include <IRsend.h>
#include <ir_Hitachi.h>
const uint16_t kIrLed = 4; // ESP8266 GPIO pin to use. Recommended: 4 (D2).
IRHitachiAc ac(kIrLed);
void setup() {
ac.begin();
Serial.begin(115200);
delay(200);
ac.on();
ac.setPower(true);
ac.setMode(kHitachiAc424Cool);
ac.setTemp(24); // 24C
}
void loop() {
ac.send();
delay(5000);
}

this thing is not working remote is 13 byte code IRrecevDumpV2 show hitachi ac1 protocol

[MarkEvens]

it is sending 28 byte code instead of 13 byte

[crankyoldgit]

It's a different protocol. The protocol you want to use does not have have detailed support yet.
See #1056

[crankyoldgit]

I.e. HITACHI_AC != HITACHI_AC1

[MarkEvens]

my remote has same output as this sheet
https://docs.google.com/spreadsheets/d/10eKpJEWJppUYktPRLCcAIwzfFXjtkOZNyn1reh5MFfU/edit#gid=0

[crankyoldgit]

That's still in progress. You can help by working out the checksum algorithm.

[crankyoldgit]

In the meantime, you can still send with the state[] = {...}; data provided by IRrecvDumpV2 and using irsend.sendHitachiAc1(state);

To be clear, detail support (i.e. setting custom temp/modes/speeds/etc using the A/C class object) is dependent on #1056 being completed. Hence marking this a dup of #1056

[crankyoldgit]

FYI, This has been included in the new v2.7.5 release of the library.