Yes,though not reccomended.It will cool faster but will not remove as much moisture,due to less run time,(which air conditioners are just that,they condition air,by removing moisture and heat)thus producing cool dry air.4 ton might make house cold but clamy.That is, if your house is sized for a 3 ton.It might have been undersized.If it kept it cool in summer then go back with a 3 ton,if not,then 4 ton wont hurt.But you will need to replace both parts of system.The air handler and the condenser.
There are also 3.5 ton units if you suspect your 3 ton unit was undersized for the application. Have a heat load calculation done for the home and get a correctly sized unit. You can replace only the cooling coil (evaporator) in the air handler and not the whole air handler as long as the fan in the unit will support whatever tonnage you wind up installing this time. Chances are a 3 ton AHU will work for a 3.5 or 4 ton unit. You`ll just have to change the speed setting on the fan. Your contractor knows this.
No. It will be less efficient.
4
4
not very well. a 4 ton system needs about 1600 cfm to provide it's full capacity of cooling. a 3 ton furnace puts out about 1200 cfm. in addition, the evap coil typically attached to the furnace needs to match the tonnage of the outdoor unit. so, the evap coil must be 4 tons. If you currently have a 3 ton furnace and evap coil, the system will not work, and you will most likely ruin the compressor in the outdoor unit.
it is a 4 ton unit
the 48 in the model number tells you it is a 4 Ton unit. 12,000 BTU in 1 Ton 018 = 1 1/2 Ton 024 = 2 Ton 030 = 2 1/2 Ton 036 = 3 Ton 042 = 3 1/2 Ton 048 = 4 Ton 060 = 5 Ton etc..
It is a 4 ton Condensing Unit
A ton is a unit of WEIGHT, a meter is a unit of LENGTH. The two can not be equated.
4 ton 125k btu
4 ton depending on construction and location.
048 would be a 4 ton unit
a 4 ton unit