Fujitsu Commercial Rooftop Unit (RTU) Installation in Pasadena

When uptime, comfort, and indoor air quality are business‑critical, you need more than a simple swap—you need an engineering‑led approach. #1 AC Guys specializes in commercial Fujitsu rooftop unit (RTU) installation in Pasadena, delivering end‑to‑end solutions that reduce lifecycle costs and elevate occupant health and comfort.

Why businesses in Pasadena choose #1 AC Guys

• Fourth‑generation family of engineers with 80+ years of engineering experience
• Factory training with Fujitsu (Japan), plus advanced training with Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China)
• Expertise in large and complex commercial projects, including occupied buildings
• Title 24, CALGreen, and local code compliance baked into design and install
• Detailed planning: curb adapters, crane logistics, seismic, electrical, controls
• Clean, safe worksites and phased schedules to minimize business disruption

Our engineered RTU installation process

1. Discovery and site assessment
We meet on site, document existing conditions, verify power, gas, and curb dimensions, and capture airflow and ventilation requirements.

2. Load calculations and design
Right‑sizing eliminates hot/cold spots and short cycling. We produce load calcs, ventilation strategy, and integration plan for controls.

3. Proposal and schedule
Clear scope, firm pricing, submittals, and a phased timeline that coordinates crane lifts, curb fabrication, and tenant operations.

4. Permits and code compliance
We handle permitting and ensure Title 24 acceptance testing, smoke detector interlocks, and seismic anchorage requirements are met.

5. Installation day
Old unit removal, curb adapter installation, duct transitions, electrical and gas connections, controls integration, and weatherproofing.

6. Startup, commissioning, and training
Factory‑aligned commissioning, airflow balancing, economizer setup, and owner training for optimal operation.

Healthier air by design

Our mission is healthier indoor air for healthier lives. We engineer each Fujitsu RTU with the right blend of ventilation, filtration, and controls:
• Ventilation aligned with occupancy and ASHRAE guidance
• High‑MERV filtration options to capture fine particulates
• Economizer tuning for fresh air without energy waste
• Smart controls and sensors for steady comfort and lower operating costs

Industries we serve

• Office and coworking
• Retail and shopping centers
• Restaurants and food service
• Hospitality and entertainment
• Healthcare clinics and wellness
• Education and places of worship
• Light industrial and mixed‑use

What’s included in a typical Fujitsu RTU install

• Equipment selection and submittals tailored to your building
• Curb adapter design and roof coordination
• Electrical, gas, and condensate per code
• Controls integration and economizer setup
• Seismic anchorage and safety clearances
• Startup, commissioning, and owner training
• Warranty registration and maintenance plan options

Signs it’s time to replace your rooftop unit

• Frequent breakdowns, rising repair costs, or hard‑to‑source parts
• Uneven temperatures, humidity swings, or excessive noise
• High utility bills and poor ventilation or air quality complaints
• Non‑compliant equipment during tenant improvements or expansions

Maintenance and lifecycle savings

Protect your investment with planned maintenance that keeps filters, belts, coils, and economizers in peak condition. Routine inspections reduce breakdowns, stabilize energy use, and extend equipment life—often paying for themselves through avoided downtime.

Safety, permits, and compliance

From lockout/tagout to fall protection and crane signaling, safety is integrated into our workflow. We coordinate with Pasadena’s building department and adhere to Title 24, mechanical/electrical codes, and fire life‑safety requirements for a smooth inspection and closeout.

Schedule and project delivery

We plan installations around your business hours, offer weekend or phased changeouts, and maintain a clean, orderly jobsite. You receive progress updates, a single point of contact, and documented commissioning results.

Factory training and expertise

Our team trains directly with Fujitsu in Japan to align installation and commissioning practices to manufacturer standards. We also maintain advanced training with Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That depth of knowledge helps us solve unusual design challenges and integrate systems cleanly with existing building infrastructure.

Serving Pasadena and Greater Los Angeles

Headquartered in Los Angeles, we serve Pasadena and the broader region: Los Angeles County and nearby areas including Orange County, Ventura County, and Western Riverside County.

Get a fast, engineered proposal

Share your plans or request a site visit. We’ll provide a clear scope, firm pricing, and a schedule that respects your operations—so you get a smooth, code‑compliant Fujitsu RTU installation built by engineers and backed by a fourth‑generation family business.