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itsiceman
04-25-2008, 02:00 AM
For as long as I can remember on newer Heatcraft condensing units out of the box the brass discharge line service valve cap is always hand tight while the brass suction/liquid line valve caps are torqued down.

Is there some reason for this :confused:

Been seeing this on the air cooled unit but we're doing some water cooled now and same thing with the loose brass discharge service valve caps.

I got caught with a leak on two different units a while back before I caught on and started checking every one :o

Slatts
04-25-2008, 05:50 AM
For as long as I can remember on newer Heatcraft condensing units out of the box the brass discharge line service valve cap is always hand tight while the brass suction/liquid line valve caps are torqued down.

Is there some reason for this :confused:

Been seeing this on the air cooled unit but we're doing some water cooled now and same thing with the loose brass discharge service valve caps.

I got caught with a leak on two different units a while back before I caught on and started checking every one :o

Brass caps Iceman? over here they sell the things with plastic caps.

The thing that really peeves me is that all the fridge boxes over here have the access port on the LLSV open to the receiver side.
Since we mostly use nonazeotropic blends and should charge the system in liquid phase this is a pain in the fundamental orifice.:mad:

itsiceman
04-25-2008, 07:34 AM
Not the 1/4" cap of the brazed in-line access shut off valve like the type on a split A/C condenser where you connect the lines.

Slatts
04-25-2008, 08:19 AM
Not the 1/4" cap of the brazed in-line access shut off valve like the type on a split A/C condenser where you connect the lines.
Same idea (http://www.heatcraft.com.au/products/capital/polar.html). It's a pedistal valve mounted in the compressor enclosure.
It occurred to me that you're talking about the brass flare cap on the access port on the service valves. Not the stem cap.