I suppose I'm going to open up the proverbial can of worms here BUT
been here long enough and figured it was my turn.
So I'm reading that every new unit should have a filter dryer installed.
Probably hundreds of thousands of units out there running just fine since they were installed without them.
The filter dryer is designed to trap any moisture that might be in the system and stop foreign material from traveling around the refrigeration circuit and causing trouble.
SO...... my question is why would a brand new properly installed air conditioning system have any moisture in it? Facts are, if the system was properly installed by a trained and qualified technician there will be no moisture at all. This eliminates the first reason to have the filter dryer.
SO...... my next questioin is why would a brand new properly installed air conditioning system have foreign material in the refrigeration circuit? Facts are, if the system was properly installed by a trained and qualified technician there will be no foreign material in the refrigeration system to cause a problem.
Having made these two points I would make an observation here to possibly widen this thread.
Why don't we install low and high pressure switches in all condensing units that don't come from the factory with them installed? I mean if we're all about protecting the equipment from all unforseen trouble, wouldn't the potential for a loss of charge or a condesner fan failing be a perfect reason for installing pressure switches in every unit to protect them?
Why don't we install low ambient controls or low temperature cutoff switches on all units incase an owner accidently turns the air conditioning on when the outside temperatures are such that possible damage could be done to the compressor?
I personally used to install delay-on make timers on all condensers I installed. This was to eliminate those pesky calls to go out to a customer's home and reset a circuit breaker or replace a couple of fuses. I found the small cost much easier to add into the bid price of the unit than say seventy-five dollars on the chance that I'd need to explain why a reset of a circuit breaker is not covered under warranty and is going to cost them a service call.
Just had one of them days.