Replacing a home’s air conditioner, heat pump or furnace can make a world of difference in comfort on hot summer days and brisk winter nights. No matter how advanced a new system might be, never assume the old or existing unit has the proper capacity. Correct selection and  HVAC installation are essential to ensure the equipment can reach maximum energy efficiency and lifespan. Enjoy lower energy bills and avoid premature wear and breakdowns by being informed about sizing, duct performance, refrigerant charge, and installation clearance. Proper system size affects both energy consumption and comfort. Too small and the system won't have the capacity to keep you cool on the hottest days. Too big and you'll have temperature swings, hot and cold spots, lingering humidity, and high energy bills. To determine the optimal size of a system, the technician will first follow the to calculate a home's heating and cooling load. Manual J requires collecting data on your home and lifestyle.

Even though most building codes require these calculations, some contractors skip Manual J, which often results in oversized equipment selection. After Manual J, the contractor should follow Manual S for residential equipment selection. Manual S selects the best equipment for each home. Many installation services leave out Manual J and S calculations to have a lower sales price, but the result for the consumer is less comfort and higher power bills. Equipment relies on your home's ductwork to deliver conditioned air to each room. Money spent improving and correcting the duct system will enhance comfort and increase long-term savings. To ensure your duct system design and size are optimal, the contractor will use Manual D. Finally, the contractor will inspect your system to ensure it is airtight. Leaky ducts are common and can waste up to 30 percent of conditioned air, cause humidity, rot, and higher power bills. Ductwork leaks can be sealed with duct mastic or heat-safe tape.

For optimal performance, each air conditioner or heat pump requires an exact amount of refrigerant. A system with a low refrigerant charge will suffer from reduced cooling capacity, low energy efficiency and compressor wear. Too much refrigerant causes incorrect operating pressures and refrigerant "slugging," which can destroy a compressor. ac power supply indiaA responsible contractor will check the refrigerant charge after installation, and although it can increase HVAC installation costs, it will reduce power bills.4 ton ac unit dimensions A system's outdoor condenser unit needs sufficient space around it to release the heat it receives from a home. price ac window unitIn most cases, a manufacturer's installation instructions state the required clearance distances.