Forum Discussion
Old-Biscuit
May 08, 2020Explorer III
What model floorplan do you have?
Fridge in 'center' of trailer.....where is TOP vent located?
Bottom vent is there for 2 reasons
1) Propane is heavier then AIR so bottom venting allows any propane from leak to exit and not accumulate
2) Draft.....airflow is from bottom UPWARD thru absorber tubing bundle then across condenser fins at top then exhausting hot air out thus removing heat from cooling unit.
Whether using propane OR electric........airflow needs to flow from bottom area up and out top area for effective cooling.
Some alternative 'venting' via an access panel under bathroom sink will NOT provide sufficient airflow especially across condenser fins where the HOT ammonia vapor is condensed into a cool ammonia liquid.
Rear fan(s) controlled by a thermostat on condenser fins are typically set to CLOSE/run fan when FIN temp reaches 130*F and OPEN/Stop fan when FIN temp drops to 115*F
HOT weather...fans running 24/7 would be OK
COOL Weather...ambient temps below 50*F fans would not be needed and if running 24/7 can cause overcooling which can cause ammonia coolant solution to not boil into sufficient quanities of ammonia vapor to effectively cool fridge
Fridge in 'center' of trailer.....where is TOP vent located?
Bottom vent is there for 2 reasons
1) Propane is heavier then AIR so bottom venting allows any propane from leak to exit and not accumulate
2) Draft.....airflow is from bottom UPWARD thru absorber tubing bundle then across condenser fins at top then exhausting hot air out thus removing heat from cooling unit.
Whether using propane OR electric........airflow needs to flow from bottom area up and out top area for effective cooling.
Some alternative 'venting' via an access panel under bathroom sink will NOT provide sufficient airflow especially across condenser fins where the HOT ammonia vapor is condensed into a cool ammonia liquid.
Rear fan(s) controlled by a thermostat on condenser fins are typically set to CLOSE/run fan when FIN temp reaches 130*F and OPEN/Stop fan when FIN temp drops to 115*F
HOT weather...fans running 24/7 would be OK
COOL Weather...ambient temps below 50*F fans would not be needed and if running 24/7 can cause overcooling which can cause ammonia coolant solution to not boil into sufficient quanities of ammonia vapor to effectively cool fridge
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