Will a 3 Ton Unit cool 1250 Sq Ft?

Yes, a 3-ton air conditioning unit can effectively cool a 1250 square foot space, as a general rule of thumb suggests that you need about 1 ton of cooling capacity for every 400 to 600 square feet. However, factors such as ceiling height, insulation quality, sun exposure, and the number of occupants can affect the actual cooling needs. It's advisable to consult with an HVAC professional to ensure the unit is appropriately sized for your specific situation.