Designing Heating and Cooling Systems in Large Buildings
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Designing Heating and Cooling Systems in Large Buildings

Have you ever wondered what goes into a heating or air conditioning system for a large office building or another large building like a mall or a school? My name is Evelyn, and I am an HVAC architect. I design heating and air conditioning systems for large, corporate buildings. Making sure that a large building with many rooms or offices is efficiently heated and cooled is a very large job and is much more complicated than simply heating or cooling a home. This blog will educate the reader on how heating and cooling jobs this large are designed and completed.

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Designing Heating and Cooling Systems in Large Buildings

How Does A Dye Test Work?

Nicole Jacobs

When a central air conditioning system is not cooling a house properly and the HVAC contractor cannot see any visible problems, he or she may suggest using a dye test to find out if the system has a leak in it. A dye test is a common method used by HVAC companies to find leaks, and here are a few things you should know about dye tests and AC systems.

They Should Run One Only When Coolant Is Low

The first thing to know is that your HVAC technician will only suggest running a dye test if your AC is not working properly, if the coolant level is low, and if there are no other visible problems with your system. Dye tests are used to find leaks in systems, and if there is a leak in your system, the coolant level in the system will be low.

They Place the Dye in the Outside Unit

Your central AC system should have two parts. One of these is found in your home, and the other part is located outside of your home. The dye test is typically placed in the outside portion of the system. Once it is placed in there, the technician will leave your house and will return to check it.

The Technician Will Wait

While big leaks are easy to find with dye tests and can be present within just a few hours, a small leak in a system will often take days or weeks to locate. Because of this, the technician may return to your house the next day or may wait several days or longer before checking the dye. When the technician comes back to check it, he or she will use an ultraviolet light during the process. The dye pack contains a material that will show up with an ultraviolet light. If there is a leak in your system, the dye will come out of the hole, and this will lead the technician to the source of the problem.

They Will Fix the Problem

Leaks can occur anywhere in a central AC system, but they are commonly found in joints in the pipes that connect the outside and inside units. Once located, the technician can make the necessary repairs and fill the system back up with coolant.

If you suspect your system may have a leak in it, talk to an AC repair company about running a dye test to find and fix the leak.


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