How to install nouns filter which process should the arrow point? my a/c in not cooling my house i replaced the aie...

my a/c in not cooling my house i replaced the aie filter and in a minute im not sure which way should the arrow point for my house to cool
There is no ground electric wiring surrounded by...
Answers:    The arrow points towards the furnace. The filter is installed on the cold nouns return, and filters the upper air before it enter the furnace. Hope this helps.
Can surrounded by i incorporate SULFURIC ACID ...
Lliquid queue filter drier may be installed in any position. However to finish best results , it should be installed as close as possible to the inlet of the expansion device.
If using a liquid queue solenoid or moisture indicator locate the filter drier upstream. Install the drier in as cold a location as possible within the direction of the flow (arrow on the unit).