AcroSteve
Make my Funk a P-Funk
Re: 65 degrees
Re: 65 degrees
I have been looking through John Tomczyk's book on troubleshooting and servicing, and have not found anything that specifically refers to this.
I think the problem will be that the superheat increases as the ambient condensor air temp decreases. This results in less heat removing capacity.(This is smplified somewhat).
I would tend to belive that after the ambient temp gets lower than a certain value, the compressor cycle times will increase untill it is on 100% of the time and can no longer keep up with the load.(I would think that my load will be almost 100% constant). I am always lowering the same amount of water the same # of degrees(1). Excluding ambient rooom temp.
Is this correct?
My room temp in the winter will be lower than it is in the summer, so the load will actually decrease when the heat removing capacity of the system is decreasing.
Could something as simple as a thermostat on the condensor fan help with this side effect? Or will it need the liquid pressure to work?
I am always wondering how close this relates to air conditioning systems that cool the air. I would think that with the way our evaporators are sized and the heat transfer advantages that water has over air, there would be some differences that are not adeqately covered in the text that I have to reference.
Is this why my suction line temps are in the low 60's to achive a SH of around 6? My heat pump is running a SH of 14 with a suction line temp of 54. I am thinking that the air does not transfer as much heat the refrigerant. Therefore, it is cooler when it exits the evaporator.
Same ambient conditions same r-22 refrigerant. When it was installed, we did not adjust the factory charge. Probably undercharged a little.
Or, is my suction line undersized? I would then to think not, as my suction pressure is around 94 right now. Undersized would have the same effect as a restriction right?
I hope I have not taken this thread in an unwanted direction with all the technical mumbo-jumbo about refrigeration/air conditioning systems. If I have, I opologize, but I do want to continue learning.
Re: 65 degrees
njsunken said:
I have been looking through John Tomczyk's book on troubleshooting and servicing, and have not found anything that specifically refers to this.
I think the problem will be that the superheat increases as the ambient condensor air temp decreases. This results in less heat removing capacity.(This is smplified somewhat).
I would tend to belive that after the ambient temp gets lower than a certain value, the compressor cycle times will increase untill it is on 100% of the time and can no longer keep up with the load.(I would think that my load will be almost 100% constant). I am always lowering the same amount of water the same # of degrees(1). Excluding ambient rooom temp.
Is this correct?
My room temp in the winter will be lower than it is in the summer, so the load will actually decrease when the heat removing capacity of the system is decreasing.
Could something as simple as a thermostat on the condensor fan help with this side effect? Or will it need the liquid pressure to work?
I am always wondering how close this relates to air conditioning systems that cool the air. I would think that with the way our evaporators are sized and the heat transfer advantages that water has over air, there would be some differences that are not adeqately covered in the text that I have to reference.
Is this why my suction line temps are in the low 60's to achive a SH of around 6? My heat pump is running a SH of 14 with a suction line temp of 54. I am thinking that the air does not transfer as much heat the refrigerant. Therefore, it is cooler when it exits the evaporator.
Same ambient conditions same r-22 refrigerant. When it was installed, we did not adjust the factory charge. Probably undercharged a little.
Or, is my suction line undersized? I would then to think not, as my suction pressure is around 94 right now. Undersized would have the same effect as a restriction right?
I hope I have not taken this thread in an unwanted direction with all the technical mumbo-jumbo about refrigeration/air conditioning systems. If I have, I opologize, but I do want to continue learning.
