Trane compressor not coming on

[VTP99]

At least not the orange pumpkins, with rotolocks.

[manny238]

Prolly a recip compressor your installing. I believe it's just another port to your suction side of the compressor. You can either braze it shut or braze a fitting on so u can gauge up there.

[timebuilder]

The old Tranes are a GE design. Many of those compressors are similar to later Trane compressors, and look like a large inverted acorn. Not your typical Bristol recip.

[bwd111]

Update on using 5ton compressor. The old compressor was 7.5 and we replaced with 5 ton and used same txv used for 7.5 ton and also used 422d instead of r-22. The system works great as all was need was a temp to 68-65 and the running compressor on a 90 degree day got the rooms down to 69. It seemed when I was charging system which called for 14 pounds I have to charge 17 pounds and finally stopped after an hour with superheat of 13.6 degrees. I was thinking it would have taken less refrigerant

[ARTICHILL]

One more thing.

Confirm voltage using my recommended method before you replace anything.

One possibility is that you are missing a phase, and you are reading the voltage through a winding from another leg.

Confirm all three 460 phases by using the steps I outlined above. First check the line side of the contactor and then the load side while the contactor is energized.

Let's keep the electrical stuff in the closed areas, like Pro Commercial next time.

Just reading through.. My thoughts exactly!! I maybe not pro but have seen that before.