hvac_super_pro_failure.3g2

HVAC Super pro failed on this liquid line joint. the Pipe didnt blow apart but it Leaks. This is a Tail-piece from an evaporator coil with a very shallow sleeve for the lineset. it is a 3/8 pipe. my thought is not enough surface area for it to hold. this one will get brazed since it is a real system and not a lab test.

Category:

Science & Technology

Tags:

• hvac
• super
• pro
• blue
• brazing
• r410a

[eldoradoboy]

R410A also has Much higher discharge temperatures which also results in more flex (expansion and contraction) of the copper joints it is used on.. I was able to easily heat the pipe and pull it apart where the glue residue is easily removed with a wire pipe brush and sanding cloth.. in my opinion an R410A heatpump puts joints through a very rigorous test.. seeing temps of -10f in defrost and upwards of 175(discharge) f in a heavy load cool cycle..

[eldoradoboy]

OK So I thought i would make an update... last year i lost the suction line joint (5/8") on that same unit.. that left 2 joints in another unit with HVAC super pro.. this weekendI got a low charge indicator on that unit.. first place i went was the comopressor discharge line repair i did 2 years ago.. and found a visual leak at one of the 2 HVAC super pro joints... my guess is that HVAC super pro may be fine for R-22 systems.. but R410 has much higher pressures.. esp in Heat-pumps..

[eldoradoboy]

heated up and came apart super easy.. trouble is there is only about 3/8" of sleeve on the evaporator tail-piece.. I think HVAC super pro likes a deeper Joint.. the glue cleaned right out and I staybrite-8'd it right up.. I know I know everyone brazes but i didnt want to get the aluminum part of the tail-piece too hot that is only a couple inches from this copper joint.. no leaks now....

[Xringer]

It's been a year, how's that HVAC Superpro been working for you?

Are the joints holding up?

Thanks,

Rich

[DrZarkloff]

That sucks. Were you able to heat up the joint and pull it apart then reapply the glue?