I guess it has a default temperature (which might be 68 or 72 or 78 degrees)? The zero-ohm resistors act as jumpers. The setting in your photo appears to be 111011.
Can you be certain the jumpers set a default temperature? Or do they calibrate the device?
Does the thermostat contain programming for daily/weekly operation, and default temperatures for all programs? Then it seems hard to believe they would give that much real estate to the default temperature alone.
If you feel like experimenting, unsolder one of the resistors. (Notice both ends need to be melted simultaneously.) Power up the thermostat. See if the default temperature has changed. (Also check whether it still reads correct temperature.)
If you find that default temperature changed, then try various combinations at positions J3-J6. Keep notes of results. Success might come with trial and error.