Can anyone help me trim this down? (8,168 of 8,192 used)

Projects Programming
4 
const int DS18S20_Pin=1;
const int ssrPin=0;
const int upPin=9;
const int downPin=10;
const int Setpoint_address=0;

At least some of these could be bytes.

  for (int i = 0; i < 9; i++) 
  { 
    data[i] = ds.read();
  }

The index is an int?

  float tempRead = ((MSB << 8) | LSB);

Shifting and oring two bytes does not produce a float.