Anyone has Dorin condensing unit info

[Dunno]

I have a Dorin semi-hermetic condensing unit with 15 hp. I am confused with the
1) min and max flowrate of the compressor
2) what is the charging amount?


Anyone used this model from Dorin before, can kindly reply this thread.. Thanks

[nike123]

Give us full model number of your condensing unit.
http://www.dorin.com/jsp/Template1/SupportData.jsp

[NoNickName]

Positive displacement compressors, unless inverter driven, have a fixed flow rate. When inverter driven, the min and max frequency is specified on the compressor documentation, and is generally 25-70Hz for normal range, or 15-87Hz for the extended range.

And condensing units do not have a charging amount, just because of their name: they are CONDENSING units, not a complete refrigerant circuit. The charge is undetermined.

[Dunno]

The model name is AUI2-HI1500CC

It has a inverter, however the flowrate stated in the catalog is confusing..
min flowrate is 19.53 m^3/h, too low for my application but it can provide the desired cooling capacity..

I thought dorin condensing unit should have a max charging amount.. or should I say all condensing unit should have a max limit of charging refrigerant..

[nike123]

The model name is AUI2-HI1500CC

It has a inverter, however the flowrate stated in the catalog is confusing..
min flowrate is 19.53 m^3/h, too low for my application but it can provide the desired cooling capacity..

19.53÷73.23 m^3/h at 20÷75 Hz! I don't see what is confusing there!

I thought dorin condensing unit should have a max charging amount.. or should I say all condensing unit should have a max limit of charging refrigerant..

Generaly speaking, Max. charge should not exceed volume of receiver which is 15 l for that model.

http://www.dorin.com/documents/Downl...4b_1LTZ027.pdf

[NoNickName]

19.53÷73.23 m^3/h at 20÷75 Hz! I don't see what is confusing there!

My guess: this is not the air flow rate. It is the refrigerant volume flow rate. Is this what you find confusing? And for the max charge, it would be easier if you could give us an hint about the system.
If you think the charge is too small, you could easily add an additional liquid receiver just after the existing one.

[lynark]

19.53÷73.23 m^3/h at 20÷75 Hz is the displacement at 20 hz and 75 hz