It's the parts from a solenoid valve! But not as we know it!

[Grizzly]

Hit the nail on the head then Guys.
What is shown is what came out, what it was replaced with was what was detailed on the PID schedule.
This particular valve was identified by me as malfunctioning.
Whereas the other 7 are working ok.
All 8 were installed approx. almost 6yrs ago (By fabricating contractors on Our behalf) and I recon this EVRAT got installed by mistake.
The reason its taken so long for any of us to realise there was an issue.
Is because its a 2.0c loading bay chiller and it will benefit from a off cycle defrost as well as the intended Hot Gas timed cycle.

The coils (on all 8 coolers) are all 10Watt so that also leads me to believe that this was a rogue install.
More importantly where onsite might we have a incorrectly assembled EVRAT?
Since replacement I have manually ran the system through several defrost cycles and all is good.
Thanks for the input and info guys.
It has been very helpful.
Virtual rep points to you both.