Installing an air conditioner can seem deceptively simple, but many common mistakes can lead to poor performance, higher energy bills, and even dangerous situations. As experienced air conditioner installers in Mount Barker, Australia, MC Electricals and Communications cautions homeowners to avoid these 10 common pitfalls when installing an AC unit:
Choosing the Wrong Size
One of the biggest mistakes is selecting an AC unit that is too large or too small for the space. An oversized unit will short cycle on and off, failing to remove humidity effectively. An undersized unit will run constantly without adequately cooling the home.
To choose the right size, calculate the square footage and factor in the climate, insulation, windows, and occupancy. An HVAC professional can provide a detailed load calculation to determine the ideal BTU rating.
Positioning the Outdoor Unit Poorly
The outdoor condenser unit must be positioned properly to allow sufficient airflow and access for maintenance. Avoid placing it:
- In direct sunlight or near heat sources, which strain the system
- Near plants or debris that can block airflow
- Under a roof overhang or deck that obstructs air circulation
- Too close to the home’s exterior or other objects (minimum 2 feet clearance)
The ideal location is a shaded spot on a concrete pad with ample clearance.
Installing the Thermostat Incorrectly
The thermostat must be mounted on an interior wall away from direct sunlight, drafts, appliances, and vents for accurate temperature readings. Otherwise, the system will cycle excessively. When in doubt, make sure that you’ve got a split air conditioning & heat pump systems certified electrician working on the job.
Failing to Seal Ductwork
Leaky ducts can reduce system efficiency by up to 30%. Use mastic or metal-backed tape to seal joints and connections thoroughly. Insulate ducts to prevent condensation and energy losses.
Skipping a Refrigerant Leak Check
After installation, the refrigerant lines and connections should be checked for leaks. Undetected leaks will lower efficiency, increase energy usage, and can lead to complete system failure over time.
Adding the Wrong Amount of Refrigerant
The refrigerant charge must be precisely matched to the manufacturer’s specifications. Too much or too little refrigerant negatively impacts performance and can damage the compressor.
Positioning Vents Poorly
Vents should be positioned high on walls and distributed evenly throughout the home for proper airflow. Avoid locating vents where they will be blocked by furniture or window treatments.
Choosing the Cheapest Model
While tempting for the budget, the cheapest AC units often use inferior materials and parts. Investing in a quality system from a reputable brand ensures better energy efficiency, durability, and warranties.
Attempting DIY Without Experience
Proper training and HVAC expertise are required for safe, effective installation. Unless you’re an experienced professional, hire a certified technician to ensure your system operates correctly.
Skipping Regular Maintenance
Routine maintenance, like changing filters, clearing debris, and annual tune-ups, is essential for optimal performance, reduced repairs, and extended lifespan.
The Bottom Line:
Avoiding these common AC installation mistakes takes research, precision, and, often, professional expertise. For reliable air conditioning installation in Mount Baker, contact the experts at MC Electricals and Communications. Their experienced team will size, select, and install your AC unit properly for superior cooling and energy efficiency.
