Temperature First 12 weeks 1418C 572 644F then 1014C 50572F Vent at 2C above the heating set point

What is the correctly punctuated version of this sentence?
Temperature: First 1-2 weeks 14-18C (57.2 64.4F), then 10-14C (50-57.2F). Vent at +2C above the heating set point.