HVAC and Refrigeration

Air conditioners and evaporative coolers provide climate control to keep people comfortable in industrial, commercial, and residential buildings. Air conditioners (also called AC units) use refrigerant to condition the air and are typically used for cooling and dehumidifying hot, humid environments. They include units for cooling only and units with a heat pump for cooling and heating. Evaporative and misting coolers use water to cool and humidify the air in hot, dry environments. Air conditioning accessories are tools, chemicals, and equipment for maintaining, installing, and controlling air conditioners and evaporative coolers. They’re used for applications such as providing a stable mount, controlling system operations, recharging refrigerant, managing condensate and runoff, and replacing worn or broken components.

Air treatment appliances, equipment, and systems help filter air and control humidity to maintain indoor air quality in workplaces and residences. They are often used to minimize allergens in homes and offices, remove contaminants in labs, filter out dust in woodworking shops, and remove fumes from welding operations. Air cleaners, dust collectors, and fume extractors are machines that keep air clean by capturing particles, dust, and fumes. Humidifiers add moisture and dehumidifiers remove moisture from the air to help provide a comfortable working environment and protect equipment and furnishings from damage.

Cooling fans and air circulators move air to cool workers and equipment, dry surfaces, and exchange stale air with fresh air. Air circulators and air cannons move high volumes of air in large or open spaces. Axial fans and accessories cool and support cooling of internal electrical components such as computers, vending machines, copy machines, and machine tools. Ceiling fans are ceiling mounted to circulate air vertically, either pulling air from the floor to the ceiling, or moving air from the ceiling to the floor. DC fans use a DC power source, such as those found in vehicles and on agricultural equipment. Residential and office fans cool smaller spaces than air circulators and cannons, including offices, garages, and patios. Transformer cooling fans mount to an electrical transformer to cool transformer radiators.

HVAC controls include valves, switches, and dampers to regulate temperature, humidity, energy, and pressure systems in commercial HVAC and refrigeration applications. Traditional mechanical thermostats and electronic thermostats control temperature in residential or commercial applications. Wireless Wi-Fi thermostats allow remote monitoring and control of a heating and cooling system and provide you with email alerts via a PC, smartphone, or tablet. HVAC building automation products include controls and room temperature sensors to simplify networked zone control for common HVAC equipment such as packaged rooftop units, air handlers, fan coil units, and heat pumps. Reduce energy costs and conserve resources with control accessories including enthalpy sensors, universal resistor kits, and temperature sensors. Pneumatic damper actuators use air to provide dependable, proportional control of dampers in either independent or sequence operations in heating and cooling applications.

HVAC test instruments ensure that HVAC systems are correctly tuned and free of leaks that can affect system performance or damage components.Refrigerant measuring and monitoring HVAC tools ensure systems are running at peak performance by taking a variety of measurements, including superheat, subcool, pipe temperature, and relative pressure. Dye injector kits include UV-fluorescent dyes that are injected into pressurized system to detect and locate leaks. UV leak detector kits include dye and other components necessary to detect leaks in pressurized systems, such as HVAC and hydraulic systems. Accessories include dye and other components to replace used kit components.

Refrigeration test equipment tests and monitors equipment to ensure it is in good working order. Pressure measuring tools, such as vacuum and micron gauges, test the pressure in refrigerant lines to detect leaks and ensure the refrigeration system is clean and at the correct pressure before replacing or adding refrigerant. Temperature meters, such as superheat and subheat meters, measure refrigerant temperature as it travels through the system, ensuring that temperatures are correct and at a safe level before adding new refrigerant.

Air curtains provide a barrier of air to help lower energy costs by eliminating untempered outside air from entering through open doors. Exhaust fans force out stale air and pull in fresh, clean air for a more comfortable environment. Combusion air intake systems control the amounts of outside air for proper combustion of oil and gas heating appliances and for more efficent heating. Duct fans increase capacity to HVAC systems, while ductwork circulates air throughout a building. Energy recovery ventilators regulate the temperature and humidity of the fresh air they pull in and can improve indoor air quality. Kitchen and range hoods maintain proper ventilation in kitchen and cooking areas. Portable blowers and carpet dryers quickly dry wet carpeting, rugs, and other flooring surfaces. Direct-drive and belt-drive tubeaxial fans are used to help exhaust contaminated or hot air created in industrial applications, and supply air to help cool or pressurize interior spaces.