I have a bryant condenser and the label says that I need an air handler with a txv. I have 2.5 ton goodman ARUF303016CA air handler and the "F" in the model number means it has a flowrater metering device.
Is it possible to replace the flowrater with a TVX?
Please look at the attached photo. I'm not sure where the flowrater device is located.
I think I can hook up the txv to the schrader valve built into the coil.
Is that recommended or should I braze on the fitting supplied with my txv kit?
Also, I thought the end of the suction line had a cap on it but with closer inspection it looks like there's a plug in the tube. It looks like the outside suction line gets pushed into the suction line on the coil.
How do I get the plug out of the coil on the suction side?
If you can screw the txv onto the coil's female threads then do it. It will work, just remember the O-ring.
That suction line 'plug' you're going to need to cut with tubing cutters about halfway. Best bet is to either unscrew the high side nut or use a screw and drill into the suction 'plug' to de-pressurize the coil first. You're going to need to remove that screw to release pressure if you go that route. On that note, if nitrogen does indeed (as it should) come out of the coil when you perform either of the two procedures, then your coil is good, no leaks from the factory.
Once that plug is cut in half, you're going to need to reem it out a bit to get the copper line to fit in there. Use some pliers, sticking them into the now open plug and twist them around with a bit of force, opening up the lip of the now cut plug. There most likely will be a few metal shavings left in there so use your finger and get them out.
Thx Doc.
I believe the threads on the coil for the txv are male threads. There is a schrader valve inside the threads. I should be able to unwind the txv to reach the threads.
I will depressurize the system by removing the liquid line nut. I'd like to cut the suction line as close to the end as possible so I'm farther away from the access panel as possible.
What do you use as a heat shield around the air handler when brazing?
Best to use an old metal cover of any kind, like if you have an old condenser, remove the service panel and cut it to be able to fit around the copper. If not available, use aluminum foil tape and a lot of it and again, try your damndest to not point the flame towards the coil. If you begin to melt anything or a small flame occurs such as on the tape or the rubber gasket of the coil than a simple strong breath of air will knock it out. Keep a spray bottle of water next to you as well. Sometimes the inside insulation likes to catch fire.
Almost feels like I've installed a complete system myself..:laughing:
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
DIY Home Improvement Forum
3.1M posts
319.6K members
Since 2003
A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Helping You to Do It Yourself!