Hello there,


I'm a bit confused. Mitsubishi states when commissioning an R410a VRF system check the running pressures and make sure the system is achieving an evaporating temp of 0 degrees C on cooling or 49 degrees condensing temp C on heating.

Is this read from the high/low service valves on the unit or the service valves on the pipework side?

Also say for example I've got my gauges connected,I've had the system running on test mode for 10/15 minutes to let the LEV openings to stabilize and compressor to get to max frequency.

So for example when I'm reading the gauges I'm looking at the saturation temperatures for R410a say on the suction/gas pipe when on cooling is 116psi which translates roughly to 0 degrees C. This means the system is running at its desired evaporation temperature.


I just need to confirm that my understanding of all this is correct, trying to piece all this together so it makes sense.