Having a problem with a Libert digital scroll discharge temp sensor??
It's been very cold here in NYC and condenser is running on VSD. The two other fans come on above 60*F. New unit,running with no problems for two weeks.
Friday Dis Temp Sensor Compressor #1. Unit is a split,both stages exact piping and weighed in charge. Been running on VSD with two transducers.
NOT OVERCHARGED!!! We leave it a little short till warm weather comes in.Then we top it off.
It seems, that depending on which compressor is lead or fully loaded effects the transducers on the condenser. Which it should.
But what happens when one transducer is the high signal due to it's loaded, and the other stage is unloaded or partially loaded?????
The VSD seems to go up to a higher speed due to the higher signal, cooling the 407C, while the other lower loaded compressor gas drops in head pressure? Some times its the opposite causing the head on the other to go up.
If i disconnect either compressor, VSD tracks very well. Any suggestions????