saydi
04-06-2008, 01:24 PM
I need great advise, my boyfriend went for his trade test but failed the test of commissioning a unit and must write it over, I feel bad for him because he was so confident he would pass but failed because the temperatures he took on the unit or compressor or evaporator were wrong and the sum on the test paper involving the temperatures to calculate the units correct superheat was wrong. The whole sum was wrong. So he got a big wake up call. Please help guys. Please tell me how to correctly commission a unit and correctly calculate superheat of the unit. PLEASE