Glossary
A
A-Coil
An A-Coil is a specific shape of an evaporator coil named for its resemblance to the letter "A," typically used in vertical air handlers.
Read More →A2L Refrigerant
A2L Refrigerant is a class of refrigerants, including R454B, that are categorized as "mildly flammable" but offer massive environmental benefits.
Read More →Accumulator
An Accumulator is a safety component located near the compressor that prevents liquid refrigerant from entering the compressor's suction port.
Read More →Air Balance
Air Balance is the process of adjusting an HVAC system to ensure that the correct amount of air is reaching every room in a building.
Read More →Ambient Temperature
Ambient Temperature refers to the current temperature of the air surrounding the outdoor condensing unit.
Read More →Anti-Corrosive Coating
Anti-Corrosive Coating is a protective layer applied to the fins of the condenser and evaporator coils to prevent oxidation and "pitting.
Read More →Auto-Restart
Auto-Restart is a convenient feature that allows your HVAC system to automatically resume its previous settings after a power outage.
Read More →B
Back-Up Heat
Back-Up Heat refers to a secondary heating source, such as electric heat strips, that engages when the outdoor temperature is too low for the heat pump to keep up.
Read More →Blower Motor
The Blower Motor is the electric motor that drives the fan inside your indoor air handler to circulate conditioned air.
Read More →Braze-Free Connection
A Braze-Free Connection is a method of joining refrigerant pipes without the use of a torch, typically using Flare Nut fittings.
Read More →Building Envelope
The Building Envelope refers to the physical separator between the conditioned interior of a building and the unconditioned exterior.
Read More →Bulk Pricing
Bulk Pricing is a discounted rate offered to contractors, developers, or property managers who purchase HVAC units in large quantities.
Read More →C
Cabinet
The Cabinet is the outer metal or plastic housing that protects the internal Components of an indoor or outdoor unit.
Read More →Capacitor
A Capacitor is a small electrical component that stores an electrical charge and provides a "boost" to start motors or keep them running smoothly.
Read More →Carbon Footprint
A Carbon Footprint represents the total greenhouse gas emissions caused by the operation and manufacturing of an HVAC system.
Read More →Cassette Unit
A Cassette Unit is a type of indoor air handler that is installed into the ceiling, leaving only a sleek decorative grille visible.
Read More →Circuit Breaker
A Circuit Breaker is a safety switch in your home's main electrical panel that automatically shuts off power if an electrical fault or overload is detected.
Read More →Clean Air Delivery Rate (CADR)
CADR is a metric used to measure the efficiency of an air purifier or an HVAC system's filtration in removing specific pollutants like smoke, pollen, and dust.
Read More →Coil Cleaner
Coil Cleaner is a specialized chemical solution used to remove dirt, grease, and oxidation from the fins of an evaporator or condenser coil.
Read More →Comfort Zone
The Comfort Zone is a range of temperature and humidity levels in which most people feel comfortable, typically between 68°F–76°F and 45%–55% humidity.
Read More →Commercial HVAC
Commercial HVAC refers to systems designed for larger-scale buildings such as offices, retail stores, and hotels.
Read More →Compressor
The Compressor is the "engine" of your HVAC system, responsible for circulating refrigerant and creating the pressure difference needed for heat exchange.
Read More →Condensate Drain Pan
The Condensate Drain Pan is a shallow tray located beneath the evaporator coil that catches the water as it drips off the cold fins.
Read More →Cooling Capacity
Cooling Capacity is the measure of an HVAC system's ability to remove heat from an indoor space, usually expressed in BTUs per hour.
Read More →Copper Tubing
Copper Tubing is the material used for the Line Set that transports refrigerant between the indoor and outdoor units.
Read More →D
DTC
DTC, or Direct-to-Consumer, is the business model OLMO uses to provide high-efficiency HVAC systems directly to the end-user without going through traditional wholesale distributors.
Read More →DX (Direct Expansion)
DX, or Direct Expansion, describes a refrigeration process where the air is cooled directly by the refrigerant circulating through the evaporator coil.
Read More →Damper
A Damper is a movable plate located in the ductwork or air handler that regulates the flow of air to specific areas.
Read More →Decarbonization
Decarbonization is the global effort to reduce carbon dioxide emissions by transitioning from fossil-fuel-based heating to high-efficiency electric alternatives.
Read More →Dehumidification
Dehumidification is the process of removing excess moisture from the indoor air to improve comfort and prevent the growth of mold or mildew.
Read More →Disconnect Box
A Disconnect Box is a critical electrical safety component installed outdoors near your condensing unit to provide a manual means of cutting power.
Read More →Distribution Center
In the HVAC industry, a Distribution Center is a strategic logistics hub where inventory is stored and dispatched to ensure rapid delivery to customers.
Read More →Drain Line
The Drain Line is a dedicated PVC or flexible pipe that carries condensed water from the indoor air handler to an appropriate outdoor drainage point.
Read More →Drop Shipping
Drop Shipping is a fulfillment model that allows us to deliver HVAC equipment directly from our specialized warehouses to your front door without unnecessary middlemen.
Read More →Dry Mode
Dry Mode is a specialized operating setting on your air conditioner that focuses primarily on dehumidification rather than aggressive temperature reduction.
Read More →Ductless AC
A Ductless AC, commonly known as a "Mini Split," is a high-efficiency system that provides heating and cooling without the need for bulky, expensive ductwork.
Read More →E
EER2
EER2 (Energy Efficiency Ratio 2) is the updated 2023 standard for measuring the cooling efficiency of an air conditioner at a specific outdoor temperature of 95°F.
Read More →EPA 608
EPA 608 refers to Section 608 of the Clean Air Act, which requires that any technician who services or disposes of equipment containing refrigerants be properly certified.
Read More →Evaporator Coil
The Evaporator Coil is the indoor component of your HVAC system where the actual cooling of your home takes place.
Read More →Expansion Valve
An Expansion Valve is a precision metering device that controls the flow of refrigerant into the evaporator coil.
Read More →F
Flare Nut
A Flare Nut is a specialized brass fastener used to secure the copper line sets to the indoor and outdoor units of a mini-split.
Read More →Flaring Tool
A Flaring Tool is a manual or powered device used by HVAC technicians to shape the end of a copper refrigerant pipe into a 45-degree funnel shape.
Read More →Floor/Ceiling Mount
A Floor/Ceiling Mount unit is a versatile indoor air handler that can be installed either low on a wall (like a radiator) or horizontally against the ceiling.
Read More →Follow Me Feature
The Follow Me Feature is an intelligent sensing technology where the remote control acts as the thermostat for your HVAC system.
Read More →Freight Shipping
Freight Shipping is the professional transportation of heavy, palletized HVAC equipment using large trucks and specialized handling equipment.
Read More →G
GWP
GWP stands for Global Warming Potential, a relative measure of how much heat a greenhouse gas traps in the atmosphere compared to Carbon Dioxide.
Read More →H
HEPA Filter
HEPA stands for High-Efficiency Particulate Air, a type of filter that can trap at least 99.
Read More →HSPF2
HSPF2 (Heating Seasonal Performance Factor 2) is the updated rating system used to measure the heating efficiency of a heat pump over an entire season.
Read More →Heat Pump
A Heat Pump is a highly efficient HVAC system that can both cool and heat a space by reversing the flow of refrigerant.
Read More →