Commercial HVAC is a dedicated system that heats and cools large properties like restaurants, office blocks, rental properties, schools, hospitals, and more. The unit comprises various intricate components working together to ensure optimum performance. Should one part develop a problem that goes unnoticed, it could impact the entire system, causing severe breakdown and possible loss of income and even clientele.
The certified commercial HVAC experts at General Air delve into the core components of commercial HVAC systems and their work.
Common Components of a Commercial HVAC Unit
Due to its magnitude, commercial HVAC systems significantly differ from their residential counterparts in terms of their dimensions, capability, and operational intricacy. Here are some of the crucial components of these units:
Evaporator Coil
The evaporator coil is located indoors and is a crucial component of the cooling process. It absorbs heat from the indoor air and allows the refrigerant to evaporate within the coil. Warm air from the building passes over the coil, and the heat energy is transferred to the refrigerant, which evaporates and cools the air.
Condensing Unit
This unit is typically placed outside the building and works in conjunction with the evaporator coil. It contains the condenser coil, compressor, and refrigerant gas. After the heat exchange cools the refrigerant into liquid, the condensing unit pumps the liquid to the evaporator coil, where it is turned into a gas.
Compressor
The compressor is often located in the outdoor condensing unit. It compresses the low-pressure, low-temperature refrigerant gas from the evaporator to a high-pressure, high-temperature gas. This compressed gas then moves to the condenser for heat dissipation.
Air Handler
The air handler conditions and circulates air. It has a blower motor, heating and cooling elements, filter racks, sound attenuators, and dampers. The component is typically connected to ductwork to distribute conditioned air throughout the building.
Simple and Complex Systems
A crucial concept in commercial HVAC worth mastering is simple systems vs. complex systems. Simple systems leverage direct expansion cooling or heating to condition a refrigerant to heat or cool air. Simple systems serve a single area or zone and feature a direct control unit within the target area.
On the other hand, complex systems transfer the heating and cooling function to a secondary unit. In their cooling mode, the systems put the refrigerant in a chiller and circulate water through the cooling coils to cool spaces. In their heating mode, the system generates hot water or steam in a boiler to warm spaces. Complex systems feature a centralized operating unit and serve several zones.
Commercial HVAC Systems We’re Familiar With
At General Air, we understand the need for restaurants, schools, hotels, office buildings, and other commercial properties in Greenville, South Carolina, to have well-performing HVAC systems. A reliable commercial HVAC system will not only enhance employees’ productivity but also keep clients happy and comfortable during a freezing winter or a steamy hot summer. Our licensed technicians have vast experience in installing, repairing, and servicing a range of commercial HVAC systems, including:
Mini Split
Mini split or single split system connects one indoor unit to an outdoor unit. It is one of the most popular commercial HVAC systems, ideal for small commercial facilities. It allows occupants of many small rooms to control their indoor environment independently. In essence, the single split system of each room can’t affect other rooms.
VRF
Variable Refrigerant Flow or VRF system heats and cools different parts of a property simultaneously. These systems are ideal for properties with multiple rooms and large open areas. Most VRFs are installed in large mixed-use properties.
Central Plant
Central plant systems comprise components that chill water for cooling and a boiler for heating the water. The system also features a network of ducts, pipes, and other channels that distribute hot or cold air throughout the building. These systems are designed to ensure even temperature distribution across different zones within the building. Modern systems can be quite sophisticated, using sensors, thermostats, and advanced control algorithms to optimize energy efficiency and maintain comfortable indoor conditions.
Call Us for Your Commercial HVAC Needs
If you are a business owner or facility manager in Greenville, South Carolina, and are looking for commercial HVAC help, contact General Air today for all your needs.
Our certified technicians boast several years of commercial HVAC experience. You can count on us whether you need new installations, repairs, replacements, or servicing.
We promise prompt and effective solutions with minimal disruptions to your operations.
Contact us today to schedule a free consultation.
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