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1. hvacknowitall.com › blog › make-up-air-units-explainedMake Up Air Units Explained - HVAC Know It All

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   Feb 17, 2019 · Make-up air units, or MUAs, play a vital role in condominiums. The building’s MUA unit is generally located at the top of the building, either in the mechanical room or on the roof. The function of the MUA unit is in its name: it makes up the air that gets exhausted from kitchen, bathroom, and dryer exhaust systems.

2. blog.totalhomesupply.com › make-up-air-unitsMake Up Air Units: A Guide to Different Models for Different ...

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   Aug 24, 2022 · View Product. GE AZ65H09DBM 9000 BTU Zoneline PTAC Heat Pump – Makeup Air. Like the previous model, this GE unit combines the functions of a PTAC and makeup air system in one. It can deliver 25 – 50 CFMs of continuous makeup air at a default setting of 35 CFMs, while providing 9,000 BTUs of cooling capacity.

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3. allthingshvac.com › all-you-need-to-know-and-moreMake up Air Units: All You Need to Know and More

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   Mar 20, 2024 · Make up air units help reduce cold drafts, which can cause discomfort to occupants and increase heating and energy costs. Additionally, they eliminate high pressure differentials that make doors difficult to open or close, potentially causing injuries and safety hazards for workers . When considering a make up air conditioning unit, it is ...

4. www.greenbuildingadvisor.com › article › all-aboutAll About Makeup Air - GreenBuildingAdvisor

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   Feb 22, 2019 · Clothes dryer: 100 to 225 cfm. Range hood exhaust fan: 100 cfm to 1,400 cfm. Common sense tells us that if a fan is expelling 100 cubic feet of air per minute from your house, then an equal volume of air (“makeup air”) must be leaking into your house at the same time to replace the exhausted air. If your house is old and leaky, the makeup ...

5. www.greenbuildingadvisor.com › article › choosingChoosing the Right Range Hood Makeup Air System

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   Apr 11, 2024 · Brett Singer, an indoor air quality researcher at Lawrence Berkeley National Lab, says 250 cfm should be enough. Of course, that depends on hood design, location, and capture efficiency. But just put the range against the wall and have a hood that covers the whole thing. With that setup, a 250 cfm range hood should suffice.

6. home.by.me › en › discover-homebymeFree and online 3D home design planner - HomeByMe

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   HomeByMe, Free online software to design and decorate your home in 3D. Create your plan in 3D and find interior design and decorating ideas to furnish your home

7. People also ask

   What is a Mua unit & how does it work?

   • The function of the MUA unit is in its name: it makes up the air that gets exhausted from kitchen, bathroom, and dryer exhaust systems. By replenishing the removed air, the MUA unit helps maintain balanced airflow in the building. The building ventilation and the MUA system must work together to maintain proper building pressure.

   Make Up Air Units Explained - HVAC Know It All

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   How important is air balancing in a Mua system?

   • One aspect often overlooked with MUA systems is the air balancing process. Over the years, it’s not uncommon for tenants to adjust hallway diffusers, which can negatively impact the overall system.

   Make Up Air Units Explained - HVAC Know It All

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   Does a Mua system cool in the winter?

   • Most MUA systems temper the air in the winter to prevent icy cold air from being delivered to the hallways. Some MUA systems are also designed to provide cooling in the summer. A common complaint I often hear is, “ The hallway temperatures don’t feel the same as my unit.” However, hallways don’t need to be kept at 23°C (74°F) in the winter.

   Make Up Air Units Explained - HVAC Know It All

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   What temperature should a Mua unit be kept at?

   • Some MUA systems are also designed to provide cooling in the summer. A common complaint I often hear is, “ The hallway temperatures don’t feel the same as my unit.” However, hallways don’t need to be kept at 23°C (74°F) in the winter. A temperature of 20°C (68°F) is more than adequate since hallways are not living spaces.

   Make Up Air Units Explained - HVAC Know It All

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   How often should a Mua unit be lubricated?

   • In particular, the inlet dampers on many MUA units tend to get neglected and should be lubricated twice a year. Like any gas-fired appliance, the major components—burners, ventor motors, heat exchangers, etc.—should be thoroughly inspected during an annual inspection, which should ideally be scheduled in the summer.

   Make Up Air Units Explained - HVAC Know It All

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   What happens if a room has too much MUA?

   • If there is too much MUA, noise complaints can become common. On the other hand, too little MUA can lead to complaints about smells in the hallways. The MUA system is essential for pressurizing hallways, which helps to keep odors, such as cooking smells, localized to individual suites.

   Make Up Air Units Explained - HVAC Know It All

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8. hvacprograms.net › makeup-air-unitWhat is a Makeup Air Unit in an HVAC system?

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   A makeup air unit (MAU) is an air handler that conditions 100% outside air. Typically used in industrial or commercial settings, or in “once-through” (blower sections that only blow air one-way into the building), “ low flow ” (air handling systems that blow air at a low flow rate), or “primary-secondary” (air handling systems that ...