AWHP superheat & sub-cooling

[micknick]

We are testing our chillers at 55C (131F) ambient and experienced compressor overload at various points.
Our solution was a suction line heat exchanger with a txv feed the opposite direction of the suction flow. Insulate the heck of the suction line. My suction temperature 6-9C with a below normal amp draw.
5 ton unit 1 ton TXV.

[Gary]

We are testing our chillers at 55C (131F) ambient and experienced compressor overload at various points.
Our solution was a suction line heat exchanger with a txv feed the opposite direction of the suction flow. Insulate the heck of the suction line. My suction temperature 6-9C with a below normal amp draw.
5 ton unit 1 ton TXV.

I'm thinking the same effect could be had without the heat exchanger by simply injecting the output of the TXV directly into the suction line, with the bulb mounted downstream, i.e. liquid injection.

But once again we see that its about keeping the compressor cool.

[desA]

We are testing our chillers at 55C (131F) ambient and experienced compressor overload at various points.

Thanks micknick, for your very useful comment. 55'C is quite some temperature - I'd imagine this is the local ambient surroundings where the compressor is operating. What were the symptoms of the compressor overload?

Our solution was a suction line heat exchanger with a txv feed the opposite direction of the suction flow. Insulate the heck of the suction line. My suction temperature 6-9C with a below normal amp draw.
5 ton unit 1 ton TXV.

So, basically a suction line cooler, using 2-phase feed out of the TXV.

How did your evaporator respond to the rise in vapour fraction?