Rooftop heat pump air handling unit replacements are the latest improvements slated for Peter's Elementary School.

Northern Lehigh School District will accept bids for the project until 9:30 a.m. May 23. A pre-bid meeting will be held at 9:30 a.m. May 6 at the school.Work will include replacement of three existing rooftop heat pump air handling units with similar, new units, as well as curb replacements and reconnections to the associated, existing, piping, ductwork and electrical systems.In addition to the replacement, the new unit controls are to be extended to the existing building automation system.Last week, the board agreed to have administration seek bids on the replacement of the three rooftop sections on the school's gym roof.The project is budgeted in the district's 2016-17 general fund budget.Also at that time, the board authorized administration to enter into a contract with Snyder Hoffman and Associates to design, engineer and assist with the bidding of the replacement of the three rooftop units on the Peters gym roof not to exceed $5,980.Greg Derr, director of support services and transportation, said the three units on the gym roof are more than 20 years old and are at the end of their life cycle and need to be replaced.Peters Elementary was constructed in Friedens in 1954.