Ask Experts Questions for FREE Help !
Ask
    Charles Gray's Avatar
    Charles Gray Posts: 1, Reputation: 1
    New Member
     
    #1

    Nov 30, 2015, 10:10 PM
    Zero high side pressure?
    Hi guys. First post. I'm a noob HVAC tech with an AOS IN HVAC asking about an R-22 cold table I've been fighting with for a week. The compressor ohmed out wrong, and I replaced it only to find there is ZERO high side pressure. None. I shut off the compressor when it reaches 200 degrees so the oil doesn't cook internally. Thought it might be a cap tube restriction, but after measuring it out, brazing it in, I got nothing, still. I checked the compressor port where I have the head pressure gauge to see if that was clogged, but no. Open to any suggestions. Is there a commercial hvac place I should have posted?

Check out some similar questions!

High side low side r22 same pressure when off? [ 1 Answers ]

I have a chiller that uses r22. It is water cooled and cools water to 55 deg. Problem. First the high and low sides are both at 120 in the water bath and room temp around 72 deg. So this may be normal for this situation but, when I start the unit the high side goes to 450 psi in about 15 seconds...

Dodge stratus air conditioning high side has low and low side has high pressure how [ 0 Answers ]

Our dodge stratus 2001 air was cooling and then not cooling then cooling again Took it to our mechanic he said he did not know how to repair. The compressor was good, but the high pressure line is now low pressure, and the low pressure has highest pressure, he said he did not know what was causing...

The high pressure side and low pressure side of my ac unit are at 115 lbs, what do I [ 4 Answers ]

I have a Goodman ac unit at my house,the high pressure side and low pressure side are equal at 115 lbs. How do I solve this problem, or what do I do to fix this problem.

R22 LOW SIDE and high side same pressure 120psi [ 2 Answers ]

r22 LOW SIDE and high side same pressure 120psi. Condensing unit works for 15 seconds and then stops

Do you add 30 410a freon pressure like you do r22 and r12 for high side pressure in c [ 1 Answers ]

Do you have to add 30 to the ambeint air temp. like you do for r22 and r12 to R410a freon to get the proper high side pressure reading


View more questions Search
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.