Please correct any wrong statements. My business is in the changeover market. From my understanding..... in let's say a 13 year old hvac system with a bad compressor in the outdoor unit
A 13 Seer outdoor unit is not compatible with the small indoor coil on the system so a new evaporator coil will need to be installed also. This is because the outdoor unit has much more freon than the indoor coil.
The line set will also probaly need to be installed as well because the unit will require larger suction lines to return the freon to the unit.
Due to larger Coils the units will not dehumidify as efficiently so the blower speed should be lowered in areas with high humidity.
If these statement are true then what do I due if the furnace/coil are 14" wide and are located in a small 16" inch wide closet. The larger 17" coil won't fit. This is common where I work for two story condo's. Also many times these units have 5/8 x 3/8 Line sets. (old janitrol units)
Where I work, There are big houses with small units in the attic for the upper level. They typically have a 80 - 100 foot line set run in between the walls. It seems that they will have to install the new line set outside the walls or have serious sheet rock and paint repairs.
Please clarify anyone. There is too much conflicting information from techs, magazines, and distributors.