Omnia Mechanical Group

571 Timpson Place Bronx, NY 10455

Phone: 212-534-2500

Contact us on email!

What Size Air Compressor Do I Need?

Air compressors are integral to many operations in your apartment complex. While the device is helpful for powering air tools for maintenance and construction tasks, most building owners are likely more interested in the device for HVAC purposes.

As a property owner, when an HVAC air compressor fails or is reaching the end of its life, you likely have one question: What size air compressor do I need? The sizing matters for operational efficiency, but determining the appropriate size is often complex, which is why a professional from Antler Pumps is crucial to compressor selection. Discover the process for choosing the right air compressor when the existing air compressor is showing signs of wear.

What Size Air Compressor Do I Need?

Looking at Averages

Suggesting an air compressor size without inspecting the building’s HVAC system is challenging. That said, you can determine a category of compressors based on a broad range of parameters, for instance:

  • Small multi-unit properties with simpler HVAC systems may use 5-20 gallon compressors capable of 5-10 cubic feet per minute
  • Medium-sized properties with more complex HVAC systems may use 20-60 gallon compressors capable of 10-15+ CFM
  • Large, complex properties, like high-rises, with extensive HVAC systems may use 60-80+ gallon compressors capable of 15+ CFM

The size your property needs varies based on several factors, including the size and complexity of the HVAC system, the number of units, the age of the building, and additional compressed air needs. Typically, the larger the building, the more complex its HVAC system becomes; however, the complexity depends on the independence of your property’s units.

Some multi-unit properties provide independent heating and cooling systems, making it easier to separate tenant utility responsibilities. A centralized HVAC system supplying all units usually needs a larger capacity air compressor.

The age of the building can affect its reliance on air compressors. Older properties, which comprise much of New York City’s real estate, depend on legacy pneumatic controls, which operate on compressed air. Determining what size air compressor you need in an older building usually requires a proper system assessment.

Some properties may have other uses for compressed air in the system. Many maintenance departments have dedicated lines for air tools in maintenance workshops, which can affect the building’s air compressor size.

How Do You Determine the Correct Air Compressor Size?

Assessing the HVAC System Demands

A pneumatic control HVAC system uses a series of dampers, actuators, and regulators to control the output and flow of heating and cooling. The devices that allow the system to operate depend on an air compressor connected to the system through a series of pipes. The compressor sends compressed air through the pipes interacting with the pneumatic devices.

Thermostats strategically placed throughout the system detect temperature, humidity, and static pressure deviations. In order to counter the changes, the thermostat sends a compressed air signal to the appropriate valve or damper to open or close it.

Understanding what size air compressor you need requires knowing the components of your HVAC system and their individual compressed air needs. For example, pneumatic damper actuators need 20-30 PSI and 2-5 CFM on average. The system compressor needs enough power and force to power all individual components throughout the system.

Tank size also matters in air compressor selection. Larger tanks ensure stable pressure when the system is in operation. A smaller tank is often more affordable but likely cycles on more frequently, using more energy and causing more of a raucous.

The existing air compressor for your HVAC system should have a label that tells you the tank capacity and the PSI/CFM outputs. If the label is worn and illegible, you can check the owner’s manual for your system to find the correct air compressor size. When all else fails, you can call Antler Pumps and schedule a system assessment.

What Else Should You Know About Air Compressors for HVAC Systems?

Compressor Types and HVAC Suitability

Air compressors typically come in oil-lubricated or oil-free styles. Oil-lubricated models are usually quieter and last longer than oil-free models, making them preferable to oil-free models. While oil-free models offer less contamination risk when sharing air lines with sensitive equipment and may require less maintenance than oil-lubricated models, their shorter lifespan is a significant drawback for property owners.

Compressors may be single-stage, two-stage, or multi-stage designs. Single-stage compressors are generally sufficient for most apartment buildings, while two-stage or multi-stage designs are typically reserved for industrial applications and settings with consistently high air demands.

Noise Levels

Also, while selecting the right size air compressor is vital, as an apartment building owner, you need to worry about noise levels. An air compressor is usually located in a basement. However, depending on the size and quality of insulation in a property, the device can still disturb tenants. When choosing an air compressor, look for models with lower decibel ratings and consider soundproofing options.

Maintenance and Reliability

The size and type of air compressor will affect its maintenance and reliability. For example, an oil-lubricated compressor usually requires more maintenance than an oil-free compressor, but it experiences less wear and tear from friction, making it more reliable.

If you choose an air compressor that is too small for your building’s system, it can strain the device and its components, risking frequent breakdowns, tenant discomfort, and costly repairs. Selecting an air compressor that is too large for the system can result in high energy consumption, short cycling, excessive noise, and potential overpressure issues.

What Size Air Compressor Do You Need for Your Building?

Consult Antler Pumps To Learn More

When an air compressor stops running, discovering what size replacement unit you need can be as simple as looking at the label on your existing compressor. That said, determining the right size compressor can be challenging for legacy systems or more complex HVAC and operational demands.

Antler Pumps makes the sizing and selection process easy. Our team assesses your existing system and defines the PSI/CFM requirements. Call us at 212-534-2500 to schedule a system assessment and get the right air compressor installed.

Our Privacy Policy

Omnia Mechanical Group(the “Company”) strives to ensure the highest standards for property listings and customer information privacy. Please review the following statement to learn about our company practices and policies. Please be aware that our Privacy Policy is subject to change at any time.

1. Purpose.

This Privacy Policy (“the Policy”) provides information on how the Company uses your personal information. By agreeing to the Policy, you agree to our collection and use of your personal information as described in the Policy. This Privacy Policy is effective for all new users of

2. Personal Information.

You can browse some areas of (“the Website”) without being a registered user. However, certain activities do require registration. (You consent to the transfer and storage of your information by registering with

3. Use of Information.

Our primary purpose in collecting personal information is to provide you with a safe and user-friendly experience. For example, the Company may use your personal information to:

  • Improve our services and the Website’s content and layout;
  • Provide the services and necessary customer support you request;
  • Resolve disputes, collect fees, and troubleshoot problems;
  • Track and record customer satisfaction with our services;
  • Protect the Company against error and fraud;
  • Inform you of special promotions and announcements;
  • Enforce our agreements, terms, conditions, and policies; and
  • As otherwise described to you at the time of collection.

We may occasionally ask you to complete optional surveys. These surveys are used to improve and customize your experience with

The Company always provides you the ability to opt-out of further communication such as promotions and surveys; see the Opt-Out section below.

The Company does not share any of your personal information with outside organizations, companies, individuals, etc. The only exception to this standard is if such a disclosure is reasonably necessary to respond to any and all legal processes.

4. Links to Other Sites.

The Website may have links to other websites that may collect personally identifiable information about you. The Company is not responsible for the privacy practices of the content of those linked websites.

5. Safety & Security Precautions.

The Website has strict security measures in place to protect you and your information from fraud. Once your information is provided to Omnia Mechanical Group, we strive to ensure the confidentiality of your identity and information.

6. Opt-Out.

The Company provides you with the opportunity to opt-out of receiving promotional and other non-essential, marketing-related communications from Omnia Mechanical Group. If you would like to opt-out of these select communications, please see any of the Company’s email communications and follow the directions indicated.

7. Account Protection.

Your password ensures the security of your account. When choosing a password, the Company suggests using various characters. It is highly recommended that you do not disclose your password to anyone. (If you do disclose your password or your personal information with others, you are responsible for all actions taken in the name of your account.) If the security of your password is compromised for any reason, please contact the Company immediately.

8. Accuracy of Information

The Company does not guarantee the accuracy of information for any and all of its properties on the Website, and is not responsible for any errors or misrepresentations (made by Renters, the Client, or otherwise).

9. Cookies

The Company may place a small cookie on your computer’s hard drive. This allows us to personalize your use on the Website. In order to maximize the functionality and usability of the Website, you must set your browser’s preferences to allow both permanent and temporary cookies.

10. Changing Your Personal Information.

Should your personal information change, please immediately update your information on the Website. This will ensure the accuracy of our records. The Company does retain personal information from closed accounts in order to comply with law and collect and disburse any fees owed.

11. Third Parties

This Privacy Policy addresses only the use of information we collect from you. Since does not control the privacy policies of third parties, you are subject to the privacy policies of those third parties. It is advisable that you consult with the management of third parties before you disclose your personal information to others.

12. General

We may amend this Privacy Policy at any time by posting the amended terms on the Website. All amended terms are immediately effective after they are initially posted on the Website.

13. Privacy Policy Questions & Concerns

Questions and/or concerns regarding the Policy should be emailed to the following email address: