Bryant RTU

A.D. Const

Hi, I have a Bryant RTU Model # 580fpv240360abcd. The fusible blug blew due to to fan problems and high head sensor that did not shut the unit off. Problems have been taken care of. However, I want to re-charge the unit by weight, can anyone tell me the proper weight of refrigerant for this unit. As you may see from model # this is a 2 compresor, 2 fan unit. I only lost one side (secondary). Also for any other Bryant rep any other info would be greatly appeciated such as tons, year made, seers rating or any available info. Thanks

flashheatingand

why would you want to recharge the unit? If I am reading your post right, you had an electrical problem not a problem with the refrigerant circuit. You should not need to mess with the refrigeration if all was ok earlier.

A.D. Const

Well yes, it was an electrical problem, but the fuzible plug melted, as a result, do to high preasure/high temp. so the unit lost it's charge. Thanks for the reply

flashheatingand

Gotcha,
I believe the factory charge is listed on the nameplate.
otherwise, I would call the local bryant/carrier supplier, they could tell you the factory charge, and take it from there.

A.D. Const

Thanks, appreciate your input. I do have a # on the unit (13lbs), but its hand written, I figure I could verify. How about owners manual?, Munufacturers site does not have. Is there any site that would recollect this info? Its probably a long shot, but its worth a try. Does any one know where else to find. Thank you

Verbal

weighing it in will get you realy close, but SH and SC would get you just about dead on.

__________________
Best line from a customer "you here for the tune-up? the tank of 22 is in the shed, let me know if you need more."

A.D. Const

Maybe you can explain that a bit clearly. Not to be doubtful, but I still don't understand the concept of SH/SC. I have read a lot about it, but it is my understanding that manufacturer's preffer a weight in charge. As a matter of fact it is my understanding, they (manufacturers)weight in their's charge to new manufactured units. How then would the super heat/sub cool method be more accurate?

I don't mean to second guess you, most likely, you may be right, but I most understand the concept behind it or I'll, or any other reader of this post, may do it wrong. I can't see anything more secure that a weight in charge. Only my opinion though.