Customized Supplier for XJM7-J Measuring box (Infrastructure Energy Measurement Box) for Milan Importers
Exterior and dimensions
We stick to our enterprise spirit of "Quality, Efficiency, Innovation and Integrity". We aim to create more value for our customers with our rich resources, advanced machinery, experienced workers and excellent services for Customized Supplier for XJM7-J Measuring box (Infrastructure Energy Measurement Box) for Milan Importers, We are glad that we are steadily growing with the active and long term support of our satisfied customers !
XJM7-J metering box (infrastructure power metering box) is suitable in power supply system with AC 50HZ, rated voltage 380 / 220V , as the power measurement in construction site.
Meet GB7251.1-1997 and GB7251.3-1997 standards.
after Manual Close-Open successfully tested, we continued to local electrically test. Sorry for bad English
Had a look at this three phase two speed system as it wasn’t cooling.
It was bringing the condenser fan on but the compressor didn’t run in either speed. I traced the fault to the compressor interlock timer which is a start delay timer in the feed to the contactor coils via the hi/lo speed relay, which is the 8 pin one in the vid.
Took me a bit of time to get my head round the 24v ac control circuit as most things i work on have a 240v & N control circuit!
Luckily i had a Supco timer on the van that would work on 24v so i fitted and tested that.