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In this video we'll learn how a Split System Air Conditioner works in residential and commercial applications. It’s called a split system because the indoor...
- 9 min
- 34.9K
- MEP Academy
Split Air Conditioning System | How HVAC Split System Air Conditioners WorkClick here for full course 👉https://www.augmintech.com/🔴 The outdoor unit of a s...
- 4 min
- 20.9K
- Augmintech
In this video, we delve into the fascinating world of split system air conditioners. Learn about their components, how they work, and why they are a popular choice for homes and businesses....
- 9 min
- 1343
- History of Simple Things
Aug 25, 2022 · Wall-mounted air conditioners, also known as ductless mini-split systems, are popular choices for cooling individual rooms or zones. Here’s a summary of how they work, along with their pros and cons:
- Refrigerant Piping Size vs Ductwork Size
- Heating in HVAC Split Systems
- Tilation Air Per ASHRAE 62.1
- Condensing Unit
- Compressors
- Heat Pumps
- Split System Sizing and Mixing and Matching
- Refrigerant Piping and Number of Circuits
- Refrigerant Piping Insulation
- Condensate Drain
Refrigerant carries more heat capacity then air, which allows small refrigerant piping to easily maneuver through building structures and components as opposed to large air ducts. This is what gives split systems their advantage, except when it comes to ASHRAE 62.1, ventilation air requirements, which we’ll discuss later. The split system is made u...
Heating can be in the form of a gas furnace, electric strip heater, electric heat pump, hot water, or steam. Here we show two ways of getting heat to the occupied space using a split system. First you can use a split system heat pump, which works to cool the space in summer, and heat the space in winter. See our video on How Heat Pumps Workto under...
One of the challenges for split systems is providing the required ventilation air to each of the air handlers. Ventilation air will need to be provided to each space or indoor fan coil or air handler per ASHRAE 62.1. This requires a duct from the outside or from a DOAS unit to the space or fan coil. See our video on “Dedicated Outside Air Systems” ...
The condensing unit contains two major components, the compressor, and the condenser coil. The compressor is the heart of the unit and pumps the refrigerant around the piping circuit. The condenser coil provides a means of rejecting the heat to the outdoors using a fan blowing air over a hot coil. In this picture we can see that this condenser hasn...
The smaller residential units under 10 tons will most likely have 1 compressor, while commercial units 10 tons and over can have two or more compressors. Compressors vary in their ability modulate capacity. Smaller system will use a hermetically sealed compressor with a scroll compressor. Larger systems can use semi-hermetic, reciprocating, and scr...
In addition to the cooling only split systems, there are Heat Pumps which reverse the refrigerant cycle to provide heating also. There is a move in some states and countries to go all electric, such as in California. Heat Pump are all electric so there is no burning of a carbon-based fuel. See our other video on “How Heat Pumps Work” for a better u...
Splits systems are often chosen where the outdoor and indoor unit tonnage match, but that is not always the case. Split systems can have the outdoor unit slightly larger or smaller than the indoor unit. By upsizing the outdoor unit, this will allow more latent heat for the indoor unit. The tonnage of the indoor unit can be larger than the outdoor u...
For small split systems where the indoor and outdoor units are relatively close and the pipe routing simple, the use of line sets maybe used. Line sets are available in a coil of ACR copper and are pre-charged with refrigerant, in lengths of 15, 25, 35, 50 or 100 feet. This saves on labor by avoiding field brazing of joints for fittings and couplin...
This is where most installations that we review are lacking in code compliance and application. The proper application of insulation is important in maintaining a well-functioning HVAC split system. If insulation is poorly applied or if the wrong insulation is used, then there will be a LOSS in capacity of the system. This means that the number of ...
Cooling coils remove moisture from the incoming air, and that moisture condenses on the evaporator coil. The water trickles down the coil and is captured in a drain pan that sits under the cooling coil. The drain pan needs to have some way to empty this accumulation of condensate water. Piping is provided from the drain pan to approved receptor, wh...
One of the most popular types is the split system air conditioner. In this guide, we’ll explain the split system AC as well as how they work, how they are installed and how you can benefit from this type of system.
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Split air conditioning systems operate using the refrigeration cycle to pull hot air out of your home and replace it with cool air. Air from your home is pulled into the system using return vents.
