I was chatting with a former co-worker, who challenged the new Red Seal IP exam. Got me a bit worried, because he said there was a lot of content that was not on any of the practice exams.
One of the subjects was on how to select refrigerants, based on given temperatures and performance. Safety and environmental factors were not included. 10 questions were based on this. It's a subject I cannot find much information about, and will bring up with my teacher. The exam is May 26th.
Does anyone have any information on what method to use, to find the correct refrigerant, if you were given box temp, deltaT, outdoor ambient, etc?
Thanks in advance.
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