External fans for Norcold fridge
Gary Munson 10 hrs In September we took a trip from Nevada to Florida. For most of the ride we encountered unseasonably hot weather. Kept having the problem of the freezer and fridge running warm (1...
Forum Discussion
garyemunson
After mulling over your fan arrangement I’ve concluded that the cooling will be reduced by your fans. Here’s why:
Your high volume downward draft fans will likely do a good job cooling the fins. But the flue is another matter. The flue is designed for the heat to flow up and the baffle helps to circulate and distribute the heat throughout the flue. Your fan arrangement is going to blow the flue heat downwards resulting in inadequate flue heat and hence inadequate cooling. There is also the possibility that your high volume air may blow out the propane. But for either propane or AC there will be less flue heat for cooling.
Even with a upward draft the air flow can be to much and not allow the flue heat to work. Perhaps even your series connected fans would have to much air flow. Don’t know.
Two other minor points: A downward flow might raise the electronics temperature. And using fans to create a positive pressure will cause hot air to enter into the rig inside if there are any air leaks.
This is based on my understanding of how absorption refers work so let us know what happens next summer.
After mulling over your fan arrangement I’ve concluded that the cooling will be reduced by your fans. Here’s why:
Your high volume downward draft fans will likely do a good job cooling the fins. But the flue is another matter. The flue is designed for the heat to flow up and the baffle helps to circulate and distribute the heat throughout the flue. Your fan arrangement is going to blow the flue heat downwards resulting in inadequate flue heat and hence inadequate cooling. There is also the possibility that your high volume air may blow out the propane. But for either propane or AC there will be less flue heat for cooling.
Even with a upward draft the air flow can be to much and not allow the flue heat to work. Perhaps even your series connected fans would have to much air flow. Don’t know.
Two other minor points: A downward flow might raise the electronics temperature. And using fans to create a positive pressure will cause hot air to enter into the rig inside if there are any air leaks.
This is based on my understanding of how absorption refers work so let us know what happens next summer.
