[mycbarnes]

Hi Richard
To recharge them I use the super heat method. It requires a wet bulb thermometer, measure incoming air temp to evaporator, outside air temp, a standard set of service gauges and a thermocouple clamp temp sensor on a Freon copper line. With proper chart, known temps, you can get it spot on proper. I also have a ultrasonic gauge that can determine if bubbles like a sight glass would, but the super heat method is better.
Terry

[Richard]

Mui bueno!

[HoosierDaddy]

I have installed two of these compressors in my 1993 with Duotherm units. I had to do a slight mod ( drill a new hole in the box for a mounting bolt) I am told that these compressors are very similar to rooftop A/C units.     

[HoosierDaddy]

   
I found this. Apparently there is a new part/model #

[Johnnyboy]

Aqua Air ACH14B Brochure - Cruise Air Replacement.pdf Size: 1.12 MB  Downloads: 27

I don’t know if this has been discussed. On the prevost group they talked about the new replacement air conditioners that they are making that will fit in place of cruise airs. These will be coming out soon. The company is Aqua air motor coach products. 954-525-2500. Looked promising for some coaches. I don’t know if these are only viable for classic Newell’s or the 90’s coaches

[Jack Houpe]

Your voltage drop would be my first concern, I guess you have checked the starting capacitor?

[mycbarnes]

I had tried with 2 new start capacitors with no change while on a trip, then installed a hard start kit that I can't remember the name of I learned from this group. The voltage line drop is a clue for sure, if it was a locked rotor it should be a 60 amp spike and trip the panel breaker quicker. Perhaps it is in the thermostat board relay or twist connections, I will get to the hangar this week to see. The Tecumseh Hosier Daddy has posted would be a fit, but since superseded they are harder to find and the new replacement part number for the Tecumseh is rated at a slightly lower btu.

[Jack Houpe]

Sound like your on top of it, keep us posted.

[Richard]

Because we are curious, where was the voltage measured with that drop?

[mycbarnes]

The voltage measurement was at the compressor leads. I went out again with a clamp on Fluke amp meter. Used a heavy gauge extension cord from a 30 amp service plug and connected line voltage directly to compressor leads with a house wall light switch. Bus voltage at switch was 123v. Turned on switch bus voltage dropped to 103v, amp meter displayed 55 amps. Compressor try's to spool, low side starts to drop. Makes sound like compressor is under super heavy load, internal breaker in compressor you can hear click compressor off after about three seconds. Give it enough time to reset and it repeats same. It's not the start capacitor. They are new and a hard start kit was installed also. Same problem before and after these changes, so I am certain I did not miss wire. So, I think compressor has scored from losing oil charge during last blowhole in condenser. Compressor has failed. Even tried disconnecting condensor fan motor to make sure it was not the load hog.