System Performance: Maximizing Energy Efficiency in Heating and Cooling | First Edition Edition

Details about System Performance: Maximizing Energy Efficiency in Heating and Cooling:

Heating, Ventilation, Air Conditioning (HVAC) equipment is only as good as the installation. Studies show that the majority of HVACR equipment is not installed to manufacturer specifications, costing the consumer more money. * 68% of all air conditioning systems are improperly charged. * 70% of all systems have improper airflow. * 91% of systems remain untested for combustion safety and efficiency! The System Performance training manual is broken into four sections. Each section covers the techniques and procedures required for a technician to maximize the energy efficiency of HVAC systems. 1. Airflow: Covers the properties of air, airflow measuring tools, CFM calculations/requirements, blower performance, and sensible heat ratios. 2.Critical Charging: Reviews the three charging methods by weight, system superheat, and condenser subcooling. It gives examples of calculating the total charge based on line sizes and provides an easy method to check whether a system is operating to rated capacity. 3.Psychrometrics: Covers the parts of a psychrometric chart and calculating the thermodynamic properties of air. Also, this section demonstrates using wet and dry bulb temperatures to plot air conditions being heated or cooled which enables the technician to obtain a systems effect on sensible and latent building load. 4.Combustion Analysis: This section reviews the basic combustion process and the factors that affect heating efficiency. Proper methods for furnace setting of airflow, adjustment and testing fuel pressure, and flue gas venting.