Critical Systems, LLC

Critical Systems, LLC Critical Systems is a manufacturers' representative of high efficiency HVAC products serving the DC and Baltimore metropolitan areas.

We are proud to partner with industry leaders who deliver the highest-quality products while prioritizing environmental ...
01/30/2026

We are proud to partner with industry leaders who deliver the highest-quality products while prioritizing environmental responsibility. ๐—๐—ผ๐—ถ๐—ป ๐˜‚๐˜€ ๐—ฎ๐˜ ๐˜๐—ต๐—ฒ ๐—”๐—›๐—ฅ ๐—˜๐˜…๐—ฝ๐—ผ, ๐—™๐—ฒ๐—ฏ๐—ฟ๐˜‚๐—ฎ๐—ฟ๐˜† ๐Ÿฎ-๐Ÿฐ, to explore our latest offerings.

๐—”๐—˜ ๐—”๐—ถ๐—ฟ - Fan Coil Units, Water Source Heat Pumps (SL2911)
๐—”๐—ฒ๐—ฟ๐—ผ๐—ณ๐—ถ๐—ป - Heat Transfer Products (C803)
๐—”๐—ถ๐—ฟ๐—ฝ๐—น๐˜‚๐˜€ - Air Purification Solutions (SL1953)
๐—”๐—ถ๐—ฟ๐˜‡๐—ผ๐—ป๐—ฒ - Ductless Solutions (SU1422)
๐—”๐—ฃ๐—– ๐—ฏ๐˜† ๐—ฆ๐—ฐ๐—ต๐—ป๐—ฒ๐—ถ๐—ฑ๐—ฒ๐—ฟ ๐—˜๐—น๐—ฒ๐—ฐ๐˜๐—ฟ๐—ถ๐—ฐ - Critical Process Solutions (C1143)
๐—•๐˜‚๐—ฑ๐˜‡๐—ฎ๐—ฟ ๐—œ๐—ป๐—ฑ๐˜‚๐˜€๐˜๐—ฟ๐—ถ๐—ฒ๐˜€, ๐—Ÿ๐—Ÿ๐—– - Custom Cooling Solutions (C3335)
๐—–๐—น๐—ถ๐—บ๐—ฎ๐˜๐—ฒ ๐—ฏ๐˜† ๐——๐—ฒ๐˜€๐—ถ๐—ด๐—ป ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐—ป๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐—ฎ๐—น - Critical Process Cooling (C6107)
๐——๐—ฒ๐—น๐˜๐—ฎ ๐—–๐—ผ๐—ป๐˜๐—ฟ๐—ผ๐—น๐˜€ - Controls (C1147)
๐——๐—ถ๐—ฟ๐—ฒ๐—ฐ๐˜ ๐—–๐—ผ๐—ถ๐—น - Heat Transfer (C6741)
๐—˜๐—ป๐—ฒ๐—ฟ๐˜๐—ฒ๐—ฐ๐—ต ๐—š๐—น๐—ผ๐—ฏ๐—ฎ๐—น, ๐—Ÿ๐—Ÿ๐—– - Geothermal Systems (C7932)
๐—ž๐—ผ๐—ผ๐—น๐—ท๐—ฒ๐˜ ๐—ฅ๐—ฒ๐—ณ๐—ฟ๐—ถ๐—ด๐—ฒ๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป - Custom Cooling Solutions (C6741)
๐—Ÿ๐˜†๐—ป๐˜…๐˜€๐—ฝ๐—ฟ๐—ถ๐—ป๐—ด, ๐—œ๐—ป๐—ฐ - Controls (C1153)
๐— ๐˜‚๐—น๐˜๐—ถ๐˜€๐˜๐—ฎ๐—ฐ๐—ธ, ๐—Ÿ๐—Ÿ๐—– - Custom Cooling Solutions (C2935)
๐—ก๐—ฒ๐—ฝ๐˜๐—ฟ๐—ผ๐—ป๐—ถ๐—ฐ - Humidifiers, Duct Heating (C2726)
๐—ฃ๐—˜๐—ง๐—ฅ๐—” ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด ๐—œ๐—ป๐—ฑ๐˜‚๐˜€๐˜๐—ฟ๐—ถ๐—ฒ๐˜€ ๐—–๐—ผ - Custom Cooling Solutions (C6735)
๐—ฅ๐—ฎ๐˜†๐˜„๐—ฎ๐—น๐—น - Heating Solutions (C4432)
๐—ฅ๐—ผ๐˜€๐—ฒ๐—บ๐—ฒ๐˜… - Induction Units (SL452)
๐—ฆ๐—ฎ๐—บ๐˜€๐˜‚๐—ป๐—ด ๐—›๐—ฉ๐—”๐—– ๐—”๐—บ๐—ฒ๐—ฟ๐—ถ๐—ฐ๐—ฎ - Ductless Solutions (SU207)
๐—ฆ๐—›๐—”๐—ฅ๐—– ๐—˜๐—ป๐—ฒ๐—ฟ๐—ด๐˜† - Wastewater Energy Transfer (SU954)
๐—ฆ๐—ถ๐—ด๐—บ๐—ฎ - Heating Solutions (C3312)
๐—ง๐—ต๐—ฒ๐—ฟ๐—บ๐—ผ๐—ฃ๐—น๐˜‚๐˜€ ๐—”๐—ถ๐—ฟ ๐—œ๐—ป๐—ฑ๐˜‚๐˜€๐˜๐—ฟ๐—ถ๐—ฒ๐˜€ ๐—œ๐—ป๐—ฐ - Air Handling Units, Dehumidification (C6741)
๐—ง๐—ผ๐˜„๐—ฒ๐—ฟ ๐—ง๐—ฒ๐—ฐ๐—ต - Cooling Towers (C6521)
๐—ฌ๐—ฎ๐˜€๐—ธ๐—ฎ๐˜„๐—ฎ ๐—”๐—บ๐—ฒ๐—ฟ๐—ถ๐—ฐ๐—ฎ, ๐—œ๐—ป๐—ฐ - Variable Frequency Drives (C913)

Our offices will be closed on Monday, January 19, in observance of the Birthday of Martin Luther King, Jr. We will reope...
01/16/2026

Our offices will be closed on Monday, January 19, in observance of the Birthday of Martin Luther King, Jr. We will reopen with normal business hours on Tuesday, January 20.

Merry Christmas from Critical Systems! Wishing you and your family a safe, happy, and restful holiday.
12/24/2025

Merry Christmas from Critical Systems! Wishing you and your family a safe, happy, and restful holiday.

This holiday season, we reflect with gratitude on the partnerships and relationships that have contributed to our succes...
12/22/2025

This holiday season, we reflect with gratitude on the partnerships and relationships that have contributed to our success this year. Your confidence and support are sincerely appreciated, and we value the opportunity to work alongside you.

We look forward to continuing our work together in the year ahead. Wishing you and your families a joyous holiday season and a happy, healthy New Year.

- The Critical Systems Team

Join us at CapRock in Bethesda on Thursday, December 11th for an informative ๐—•๐˜‚๐—ถ๐—น๐—ฑ๐—ถ๐—ป๐—ด ๐—”๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฆ๐˜‚๐—บ๐—บ๐—ถ๐˜. Lunch provided,...
12/08/2025

Join us at CapRock in Bethesda on Thursday, December 11th for an informative ๐—•๐˜‚๐—ถ๐—น๐—ฑ๐—ถ๐—ป๐—ด ๐—”๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฆ๐˜‚๐—บ๐—บ๐—ถ๐˜. Lunch provided, and attendees will ๐—ฒ๐—ฎ๐—ฟ๐—ป ๐Ÿฎ ๐—ฃ๐——๐—› ๐—ฐ๐—ฟ๐—ฒ๐—ฑ๐—ถ๐˜๐˜€ for participation.

๐—ฆ๐—ฝ๐—ฎ๐—ฐ๐—ฒ ๐—ถ๐˜€ ๐—น๐—ถ๐—บ๐—ถ๐˜๐—ฒ๐—ฑ - RSVP to Abby Akin at [email protected]

We look forward to seeing you there!

In observance of Thanksgiving, our offices will be closed this Thursday and Friday, November 27โ€“28. As we reflect on thi...
11/26/2025

In observance of Thanksgiving, our offices will be closed this Thursday and Friday, November 27โ€“28.

As we reflect on this season of gratitude, weโ€™re thankful for the trust and partnerships that make our work possible. Wishing you a safe and restful holiday weekend.

On this Veterans Day, we pause to honor those who have served our country. We are especially proud to recognize the serv...
11/11/2025

On this Veterans Day, we pause to honor those who have served our country. We are especially proud to recognize the service of several on our team. Thank you for your dedication, bravery, and sacrifice for our country!

๐—ฆ๐˜๐—ผ๐—ฐ๐—ธ ๐—ฅ-๐Ÿฐ๐Ÿญ๐Ÿฌ๐—” ๐—ฉ๐—ฅ๐—™ & ๐—”๐—ถ๐—ฟ-๐—–๐—ผ๐—ผ๐—น๐—ฒ๐—ฑ ๐—–๐—ต๐—ถ๐—น๐—น๐—ฒ๐—ฟ ๐—จ๐—ป๐—ถ๐˜๐˜€ - ๐—Ÿ๐—ถ๐—บ๐—ถ๐˜๐—ฒ๐—ฑ ๐—”๐˜ƒ๐—ฎ๐—ถ๐—น๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐˜†Keep your projects on track with Samsung R-410A VRF an...
11/10/2025

๐—ฆ๐˜๐—ผ๐—ฐ๐—ธ ๐—ฅ-๐Ÿฐ๐Ÿญ๐Ÿฌ๐—” ๐—ฉ๐—ฅ๐—™ & ๐—”๐—ถ๐—ฟ-๐—–๐—ผ๐—ผ๐—น๐—ฒ๐—ฑ ๐—–๐—ต๐—ถ๐—น๐—น๐—ฒ๐—ฟ ๐—จ๐—ป๐—ถ๐˜๐˜€ - ๐—Ÿ๐—ถ๐—บ๐—ถ๐˜๐—ฒ๐—ฑ ๐—”๐˜ƒ๐—ฎ๐—ถ๐—น๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐˜†

Keep your projects on track with Samsung R-410A VRF and Air-Cooled Chiller equipment, ๐—ถ๐—ป ๐˜€๐˜๐—ผ๐—ฐ๐—ธ ๐—ฎ๐—ป๐—ฑ ๐—ฟ๐—ฒ๐—ฎ๐—ฑ๐˜† ๐˜๐—ผ ๐˜€๐—ต๐—ถ๐—ฝ ๐—ฑ๐—ถ๐—ฟ๐—ฒ๐—ฐ๐˜ ๐—ณ๐—ฟ๐—ผ๐—บ ๐˜๐—ต๐—ฒ ๐—ณ๐—ฎ๐—ฐ๐˜๐—ผ๐—ฟ๐˜†. Deliver high-performance heating and cooling for new builds or retrofits. Specify with confidence and stay on schedule.

๐—–๐—ผ๐—ป๐˜๐—ฎ๐—ฐ๐˜ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฆ๐—ฎ๐—น๐—ฒ๐˜€ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ or call us at 301.545.5100 today to order.

๐—Ÿ๐—ผ๐—ผ๐—ธ๐—ถ๐—ป๐—ด ๐—ณ๐—ผ๐—ฟ ๐˜๐—ฟ๐˜‚๐—ฒ ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜๐—ถ๐˜€๐—ฒ ๐—ถ๐—ป ๐——๐—ฒ๐—ฑ๐—ถ๐—ฐ๐—ฎ๐˜๐—ฒ๐—ฑ ๐—›๐—ฒ๐—ฎ๐˜ ๐—ฅ๐—ฒ๐—ฐ๐—ผ๐˜ƒ๐—ฒ๐—ฟ๐˜†? ๐—Ÿ๐—ผ๐—ผ๐—ธ ๐—ป๐—ผ ๐—ณ๐˜‚๐—ฟ๐˜๐—ต๐—ฒ๐—ฟ ๐˜๐—ต๐—ฎ๐—ป ๐— ๐˜‚๐—น๐˜๐—ถ๐˜€๐˜๐—ฎ๐—ฐ๐—ธ - ๐˜๐—ต๐—ฒ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—ฎ๐—ป๐˜† ๐˜๐—ต๐—ฎ๐˜ ๐—ถ๐—ป๐˜ƒ๐—ฒ๐—ป๐˜๐—ฒ๐—ฑ ๐—ถ๐˜. A...
11/03/2025

๐—Ÿ๐—ผ๐—ผ๐—ธ๐—ถ๐—ป๐—ด ๐—ณ๐—ผ๐—ฟ ๐˜๐—ฟ๐˜‚๐—ฒ ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜๐—ถ๐˜€๐—ฒ ๐—ถ๐—ป ๐——๐—ฒ๐—ฑ๐—ถ๐—ฐ๐—ฎ๐˜๐—ฒ๐—ฑ ๐—›๐—ฒ๐—ฎ๐˜ ๐—ฅ๐—ฒ๐—ฐ๐—ผ๐˜ƒ๐—ฒ๐—ฟ๐˜†? ๐—Ÿ๐—ผ๐—ผ๐—ธ ๐—ป๐—ผ ๐—ณ๐˜‚๐—ฟ๐˜๐—ต๐—ฒ๐—ฟ ๐˜๐—ต๐—ฎ๐—ป ๐— ๐˜‚๐—น๐˜๐—ถ๐˜€๐˜๐—ฎ๐—ฐ๐—ธ - ๐˜๐—ต๐—ฒ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—ฎ๐—ป๐˜† ๐˜๐—ต๐—ฎ๐˜ ๐—ถ๐—ป๐˜ƒ๐—ฒ๐—ป๐˜๐—ฒ๐—ฑ ๐—ถ๐˜. As the industry leader in heat recovery technology, Multistack was the first to integrate Magnetic Bearing Compressors into heat recovery systems. In fact, they invented the Magnetic Bearing Compressor itself.

High lift Magnetic Bearing Compressor technology delivers ๐˜‚๐—ฝ ๐˜๐—ผ ๐Ÿญ๐Ÿฐ๐Ÿฌยฐ๐—™ ๐—ต๐—ผ๐˜ ๐˜„๐—ฎ๐˜๐—ฒ๐—ฟ ๐˜๐—ฒ๐—บ๐—ฝ๐—ฒ๐—ฟ๐—ฎ๐˜๐˜‚๐—ฟ๐—ฒ๐˜€, while oil-free centrifugal compressors mean ๐—น๐—ผ๐˜„ ๐—บ๐—ฎ๐—ถ๐—ป๐˜๐—ฒ๐—ป๐—ฎ๐—ป๐—ฐ๐—ฒ and ๐—ต๐—ถ๐—ด๐—ต ๐—ฟ๐—ฒ๐—น๐—ถ๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐˜†.

๐— ๐—ผ๐—ฑ๐˜‚๐—น๐—ฎ๐—ฟ ๐—ฐ๐—ผ๐—ป๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐—ถ๐—ผ๐—ป ๐—ฝ๐—ฟ๐—ผ๐˜ƒ๐—ถ๐—ฑ๐—ฒ๐˜€:
- Exceptional turndown capability
- Inherent redundancy
- Simplified installation
- Scalable design - easily expandable future capacity

๐—–๐—ผ๐—ป๐˜๐—ฎ๐—ฐ๐˜ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฆ๐—ฎ๐—น๐—ฒ๐˜€ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ ๐—ผ๐—ฟ ๐—ฐ๐—ฎ๐—น๐—น ๐˜‚๐˜€ ๐—ฎ๐˜ ๐Ÿฏ๐Ÿฌ๐Ÿญ.๐Ÿฑ๐Ÿฐ๐Ÿฑ.๐Ÿฑ๐Ÿญ๐Ÿฌ๐Ÿฌ to learn how Multistack can optimize your next heat recovery application.

Warm wishes for a bright and prosperous Diwali from Critical Systems!
10/20/2025

Warm wishes for a bright and prosperous Diwali from Critical Systems!

09/23/2025
Our offices will be closed Monday, September 1st, in observation of Labor Day. We will resume normal business hours Tues...
08/29/2025

Our offices will be closed Monday, September 1st, in observation of Labor Day. We will resume normal business hours Tuesday, September 2nd. Wishing you and your family a safe and happy holiday weekend!

Address

12216 Parklawn Drive
Rockville, MD
20852

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 5pm

Telephone

+13015455100

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