Ammonia Valve Failure

[@raymarin912]

Another great job done! Very professional. Thank you guys.

[@alliancetechnh3368]

Correction. The Valve is a RS S4A.

[@unknownsf0]

Awesome work!

[@unknownsf0]

This vid is so dope had to rewatch!

[@Raphael_NYC]

Thank you. raphael nyc

[@UlisesPalacios]

Nice videos. I would use oil instead of anti seize on newer valve stems. The graphite can damage the elastomer seal components. Most newer valves have stainless steel stems.

[@alliancetechnh3368]

When doing valve Maintenance on shut off and hand expansion valves I do use oil. But when dressing up a valve that's going to be in an environment this extreme oil won't keep the cap from seizing up and will make it harder to service the valve. I do mix oil in my anti seize to help with this on Hansen and Parker valves. I believe you are referring to danfoss valves that have a seal type packing and not a gland type. I would only use oil on these types of valves. Great observation. What valves do you work with?

[@UlisesPalacios]

@@alliancetechnh3368 that makes sense. I definitely use anti seize on all caps, bolts and gaskets. I just read somewhere that most newer valves have different packing material and not to use anti seize when exercising the valves. But I definitely have in the past. Usually the 3 you named. R/s Hansen, Danfoss. The only other valves I come across are wolf linde or some other old valves

[@alliancetechnh3368]

@@UlisesPalacios That's awesome. It's really important that we keep up with the industry evolving and make sure we perform tasks to the OEM standard. Thank you. I really enjoy all the comments.

[@UlisesPalacios]

@@alliancetechnh3368 for sure. You have some great content. Do you mind if I share your channel on my KZbin page.

[@alliancetechnh3368]

@@UlisesPalacios I don't mind at all. Thanks for asking.

[@truthsmiles]

Interesting video! Once you changed the valve do you pull a vacuum on the opened portion before reintroducing ammonia? Or is air/moisture contamination not much of a concern in these systems?

[@alliancetechnh3368]

We purged the valve. They have an auto purger to remove the air if any gets in. No worried about moisture with something this small. Great question.

[@truthsmiles]

@@alliancetechnh3368 Ah that makes sense! I do “landlord” work on residential hvac systems (R-22, R-410a - but never R-717), and air/moisture is the mortal enemy so we take great pains to get everything out before re-pressurizing. I suppose a properly designed purging system could work but that would mean intentionally releasing really harmful greenhouse gasses - which I guess is the real reason we don’t do it. I’m looking forward to the time when propane, butane and ammonia become standard for home refrigeration :)

[@alliancetechnh3368]

@@truthsmiles Yes R717, R290, and R600 are going to be the future of refrigerants used. Ammonia Is anhydrous so therefore it loves water. Our facilities that run in a vacuum tend to get moisture in them from time to time. We connect a system that removes water from ammonia. We basically boil the ammonia off and the water stay behind. More or less. Lol.

[@dewalterdrills5643]

We always pumped it out to the low side then once in a vacuum we valve it off. When repairs are done we pump out to atmosphere until vacuum then valve that off and reopen the low side. But we had a dedicated piped in pump out compressor a vilter recip.

[@jasonfoster9118]

I wish my employer would allow me to video our system.

[@alliancetechnh3368]

IT'S DEFINITELY A CHALLENGE.

[@VinnyLomuscio]

Good stuff

[@alliancetechnh3368]

Thanks Vinny

[@claudiolorenzon1997]

Had a client change his own solenoid once. Guess what he forgot to put the gaskets in.... got an ammonia leak call, friking valve was pissing liquid like no tomorrow that was great lol.

[@alliancetechnh3368]

Thats why they should pay a qualified Tech to install. Thanks for your comment.

[@claudiolorenzon1997]

@@alliancetechnh3368 100% but customers want to try. Same guy had an engineer come out to evaluate why the system was running in high pressure. The engineer was like ohh the condenser is full of incondensibles. I said ok inspected the condenser and a good 75% of the nozzles were completely blocked full of sand took apart every header to flush the sand out of them. I mean like completely packed in there. This is what happens when the client only calls you when major things break and don't want any service contracts because they know everything....

[@alliancetechnh3368]

@@claudiolorenzon1997 As a Certified Tech it is our duty to notify the customer when issues are there. We know they want to do it cheaper but if they go Cheap than they could have issues. If you are CIRO certified you should now what to tell you customer. I send Quotes daily to my customers to avoid major problems. For your example the customer should be aware that his condenser should be cleaned 2 times a year. I do have customers that only do it one time a year but they don't get a lot of debree in them. If he is aware then your a great Tech. Good customer communication is the Key.

[@130gameboy]

How does one get into becoming an ammonia technician? Just started learning HVAC and I’m really interested in the ammonia stuff

[@alliancetechnh3368]

Well we're Hiring. Lol

[@marlon8429]

@@alliancetechnh3368 is California the only state this company is located. I’ve been working in supermarkets here in Georgia for about 5 years and interested in making the switch to ammonia

[@alliancetechnh3368]

@@marlon8429 We currently are located in California. But we hold Licenses in multiple States.