Cooling loads should be determined by a qualified air-conditioning contractor, using a recognized sizing method such as that specified in CSA-F280-M90: “Determining the Required Capacity of Residential Space Heating and Cooling Appliances.” Do not rely on simple rules of thumb for sizing, but insist on a thorough analysis from the sales representative.
Select a central air conditioner size or capacity to just meet the design cooling-load calculated. Oversizing the unit will result in short operating cycles, which will not adequately remove humidity, resulting in an unpleasantly cold and damp home. Undersizing the unit will keep it from attaining a comfortable temperature on the hottest days.
The equipment cost for a central air conditioning system is much more proportional to size than for heating equipment. Unnecessary oversizing will increase the purchase price and increase on-and-off cycling, which will decrease the unit’s overall efficiency.
Properly sizing your new high efficiency air conditioning system for your Muskoka home is critical, but not sufficient information to ensure a good installation. Call today for details!
