OK, question for you "A/C" experts
OK gang, This is for you EXERTS that know air conditioning and, all aspects of it. Below is a picture of the A/C condenser and, the electric fan that provides air for cooling of it. You'll see that...
Forum Discussion
First off,
I sure want to thank you all for trying to assist in my thoughts here.
"Is the radiator and engine driven radiator fan mounted in front of that condenser? If so no I wouldn't recommend any shroud as it would just help to block cooling airflow."
No Sir, as stated, this is a diesel pusher coach. The engine fan, (constant drive, no fan clutch) the CAC and, the radiator are at the rear of the coach. The fan and A/C condenser that you see in the picture, are on the drivers side of the coach, approximately 2+ feet from the side of the engine block.
"The problem is I don't think you have the room to build a real shroud unless there is room on the backside to do it. I haven't looked at mine in awhile."
Hey Jeff, thanks for your input. You could be right. There is not all that much room between the face of that condenser and, the back side of the painted compartment door. But, BUT, I've seen many fans and shrouds that are fairly thin and still get the job of channeling air done. We'll see.
"You do not need a shroud, once you are moving the fan probably turns off on temperature anyway. Electric fans are normally used for when you idle or are moving slow in traffic on a hot day, thermostatically controlled. It is possible to cool a condenser too much, not creating enough high side pressure to properly feed the TXV or metering device there by reducing capacity.
Unless you travel everywhere at 20 MPH or less its probably good the way it is. "
Chuck,
I have no way of telling if that fan shuts down while we're in motion with the coach, and the dash A/C is on. I'm no expert on that particular A/C unit and it's total operation but, I suspect that, that fan doesn't shut off at any time, while the A/C is in the "ON" position and, we're using it. The reason I state this is, by logic, and that fluid (R-134A) being pumped through that condenser in a heated stage, it would have to be constantly cooled by that fan. And, being on the SIDE of that coach, there's not much "forced" air through that condenser.
So again, thank you all for your assistance here. It's very much appreciated.
Scott
I sure want to thank you all for trying to assist in my thoughts here.
"Is the radiator and engine driven radiator fan mounted in front of that condenser? If so no I wouldn't recommend any shroud as it would just help to block cooling airflow."
No Sir, as stated, this is a diesel pusher coach. The engine fan, (constant drive, no fan clutch) the CAC and, the radiator are at the rear of the coach. The fan and A/C condenser that you see in the picture, are on the drivers side of the coach, approximately 2+ feet from the side of the engine block.
"The problem is I don't think you have the room to build a real shroud unless there is room on the backside to do it. I haven't looked at mine in awhile."
Hey Jeff, thanks for your input. You could be right. There is not all that much room between the face of that condenser and, the back side of the painted compartment door. But, BUT, I've seen many fans and shrouds that are fairly thin and still get the job of channeling air done. We'll see.
"You do not need a shroud, once you are moving the fan probably turns off on temperature anyway. Electric fans are normally used for when you idle or are moving slow in traffic on a hot day, thermostatically controlled. It is possible to cool a condenser too much, not creating enough high side pressure to properly feed the TXV or metering device there by reducing capacity.
Unless you travel everywhere at 20 MPH or less its probably good the way it is. "
Chuck,
I have no way of telling if that fan shuts down while we're in motion with the coach, and the dash A/C is on. I'm no expert on that particular A/C unit and it's total operation but, I suspect that, that fan doesn't shut off at any time, while the A/C is in the "ON" position and, we're using it. The reason I state this is, by logic, and that fluid (R-134A) being pumped through that condenser in a heated stage, it would have to be constantly cooled by that fan. And, being on the SIDE of that coach, there's not much "forced" air through that condenser.
So again, thank you all for your assistance here. It's very much appreciated.
Scott
