Check docs
But maybe you right, must be something wrong with trv or its unsupported or who knows what.
I know that I bought coordinator with 26 chip as the doc stated and I dont have any problems with my zigbee network.
I put all thinks to make TS0601 - _TZE200_zion52ef working in HA to my blog http://quba.bloger.cz/_/Home-Assistant-TRV-TS0601-TZE200-zion52ef
Thanks to effort of developers in https://github.com/zigpy/zha-device-handlers/issues/1061#issuecomment-1099711664
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You are an absolute legend. Thanks for compiling this guide. It was absolutely perfect and I now have three working thermostats 
I’ve been trying to get this working now for almost a year and had very nearly given up hope. Thanks again, and thanks to everyone who assisted in getting this working.
@quba bloger.cz doesn’t exist anymore, and it seems your blog post wasn’t archived by web.archive.org. Any chance you have the contents lying around?
Dekuji