Refrigerator cooling question
I have followed all the threads involving improving cooling on RV refrigerators. My Norcold is a constant problem to keep the temps at around 40 degrees. My question is in regards to installing ad...
Forum Discussion
In order to get the most accurate information on the ARP controller, I e-mailed the engineer who designed/manufacturers it. Here is his e-mail back to me. His answers in bold:
The ARP device shuts your fridge off if the boiler gets too hot.
This is correct.
Not exactly the best thing for keeping the beer cold,
This is incorrect, the boiler overheats because it is no longer producing refrigerant. Restated, ammonia is the refrigerant, and when it does not get back to the boiler to drive the system, the heat of the boiler actually heats your beer in the fridge.
but it might keep your RV from burning down. My temp sensor is right above the upper fins in the back. Right near the bottom of the baffles that lead to the roof vent.
This is incorrect, the ARP (aka Fridge Defend) boiler sensor goes on the boiler when one installs according to the instructions.
PS. what burns down an RV is NOT a overheating cooling unit.
This statement is totally inaccurate, it is the destruction of the corrosion inhibitor that results in a leak. The corrosion inhibitor is what protects the cooling unit from a leak, and overheating of the boiler is what destroys the corrosion inhibitor.
What burns them up is a LEAK in the cooling unit and the LP flame "may" ignite the Ammonia.
This is also totally inaccurate, most absorption fires happen at around 2am to 4am in the morning when on shore power.
Also a dirty LP burner will cause a flame flash and ignite areas around the Cabinet and cause a fire.
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So the ARP unit will not necessarily guard against fires in the refer, only against overheating in the flu.
This is not true, the ARP boiler sensor is mounted to the boiler tube, not the flue tube.
The ARP device shuts your fridge off if the boiler gets too hot.
This is correct.
Not exactly the best thing for keeping the beer cold,
This is incorrect, the boiler overheats because it is no longer producing refrigerant. Restated, ammonia is the refrigerant, and when it does not get back to the boiler to drive the system, the heat of the boiler actually heats your beer in the fridge.
but it might keep your RV from burning down. My temp sensor is right above the upper fins in the back. Right near the bottom of the baffles that lead to the roof vent.
This is incorrect, the ARP (aka Fridge Defend) boiler sensor goes on the boiler when one installs according to the instructions.
PS. what burns down an RV is NOT a overheating cooling unit.
This statement is totally inaccurate, it is the destruction of the corrosion inhibitor that results in a leak. The corrosion inhibitor is what protects the cooling unit from a leak, and overheating of the boiler is what destroys the corrosion inhibitor.
What burns them up is a LEAK in the cooling unit and the LP flame "may" ignite the Ammonia.
This is also totally inaccurate, most absorption fires happen at around 2am to 4am in the morning when on shore power.
Also a dirty LP burner will cause a flame flash and ignite areas around the Cabinet and cause a fire.
______________________________________________________________________
So the ARP unit will not necessarily guard against fires in the refer, only against overheating in the flu.
This is not true, the ARP boiler sensor is mounted to the boiler tube, not the flue tube.
