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Member Post posted an update
@Member Post
Good afternoon/evening. I’m hoping you guys might be able to assist in finding factory charge on a machine I’m working on. There is no amount stamped on the nameplate and no notes on the machine. Pulling gas to leak check, the machine has sat for 7 years. There was an issue with the “drive” that kept the machine down. Thank you fir your time, have a great day.
Member Post, Member Post and 3 others8 Comments-
should be able get original design from York rep, York R-11 chillers factory charge correct at 0-3 degrees suction superheat.
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R-11 ?? you will be lucky , i imagine that would be illegal now , even R123 could be , I should think that chiller would be redundant by now and replaced with something far more efficient
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@raptyr Still a lot of R-11 machines stateside, and 123 machines. They are illegal for new manufacture, similar to the rules with R-22
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@the-chiller-guys It does surprise me, i commissioned my last R-11 machine in 1992 in Greece , a YT but by around 2001 all R-11 machines were converted to R-123 or replaced, I think in this case they would have to do a local incremental charging until the discharge superheat flattens out at full load at around 10-12F , suction superheat is not used for accurate measurement on York Turbo’s , discharge superheat and sub-cooling at full load , with sub-cooling around 8-10F
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@raptyr are you from Greece, or do you travel?
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I used to travel, a lot, mid east, europe , s america etc, uk based
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@raptyr nice, have you been able to dial it back now and work locally?
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hello Acco4rding to an old manual I have the cooler code being B it says 640 lbs. I would start with 550 and charge rest of the way by discharge superheat and approach back then the charge was sent slightly over and with fixed orifice and i beleive TM 2 would be good to charge by heat
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