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

   hvacknowitall.com › blog › make-up-air-units-explained

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

   allthingshvac.com › 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 ...

3. 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 ...

4. www.cambridgeair.com › m-series-makeup-air-unitsMake-Up Air Units & Systems | Cambridge Air Solutions M-Series

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   The Cambridge M-Series Make-Up Air System is designed for flexibility in installation, with several different mounting options available. You will find our units in a wide range of commercial and industrial applications, including: Manufacturing and Assembly Plants. Paint booths. Food processing plants. Wastewater and sewage treatment areas.

5. www.greenheck.com › products › air-conditioningMake-up Air Unit | Greenheck

   www.greenheck.com › products › air-conditioning

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   Select from a variety of make-up air units for commercial, industrial and kitchen applications. Heating options include direct gas-fired, indirect gas-fired, steam, hot water and electric resistance.

6. www.modinehvac.com › products › make-up-air-systemMake-Up Air Systems - Modine HVAC

   www.modinehvac.com › products › make-up-air-system

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   The direct-fired make-up air units are designed to provide value through best-in-class features to simplify installation and reduce maintenance costs. The make-up air is heated directly, eliminating the need for a heat exchanger. Ideal for applications that require 100% outside air and provide the best fuel efficiency (100% thermal, 92% sensible).

7. People also ask

   What is a Mua unit in a building?

   • 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. By replenishing the removed air, the MUA unit helps maintain balanced airflow in the building.

   Make Up Air Units Explained - HVAC Know It All

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   How does a Mua system work?

   • 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. 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.

   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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   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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8. www.enbridgegas.com › condensing-muaCondensing MUAs Incentives - Enbridge Gas

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   How do condensing MUAs work? MUA units take in fresh air from outdoors. The air first passes through filters and dampers to regulate how much air is brought in, removing dust, debris, smoke and other contaminants in the process. It’s then heated with a gas-fired heat exchanger before being blown as tempered air into a space.