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I have a zebra. It is for checking and tuning ecm motors. But I agree, If you don't know what you are doing, call someone who does.

Just started working. graduated in may. what is wrong is the a coil should have been replaced as well as the lineset. homeowner didnt want to spend more money. I am against pulling a vaccuum without...

Here's the deal..... Someones been stealing condensors in this area. homeowner says "replace the condensor." bad idea. Replaced the condensor. pulled a vaccuum without a micron gauge. (nother bad...

I apologize for the lack of details. this is my first post. I believe it was close to 2 tons. Again I apologize in advance for my poor memory. the label was worn and I almost mistook it for a 22...

when I asked him what they should be he told me that it depends on the size of the unit. I am beginning to think I know more about HVAC than he does. either way I am beginning to doubt him. and will...

I don't know. my boss told me to connect my guages and tell him the pressures. he wanted me to do this because he saw the suction line was frosted. I am sorry i could not be more specific.

I'm guessing it was for a cooler? it is on a resturaunt.

I am an inexperienced tech and have never worked with 134a. Today I was asked to check out a rooftop unit with 134a. what are the normal operating pressures for 134a? I know r-22 is around 70 to 75...