Technicians servicing HVAC rooftop units face numerous types of dangers if performing maintenance operations unsafely. An RTU platform and DOAS can make all the difference between safe and accessible operations, and a potentially dangerous fix.
Metallic Ladder explains the importance of an RTU platform by highlighting key design considerations and safety elements.
What RTU Platform and DOAS Mean
| Term | Definition | HVAC Function |
|---|---|---|
| DOAS | Dedicated outdoor air system | Conditions outdoor ventilation air separately from the building’s primary space conditioning equipment |
| RTU | Rooftop unit | Packaged rooftop HVAC unit that heats and cools recirculated indoor air and outdoor ventilation air |
| Service platform | Equipment access structure | Provides a level work area next to elevated equipment for any maintenance or inspection work |
It’s critical to note that these terms and categories aren’t necessarily mutually exclusive. A DOAS merely describes the system’s function while a rooftop unit categorizes it as a rooftop configuration.
DOAS vs RTU Platform Requirements
Basic platform concepts are similar for both DOAS and RTU. The differences lie in the equipment’s physical arrangement and maintenance requirements and access points.
An RTU platform may need working space at several panels to access filters, fans, refrigeration, and any control system access. Simply put, platforms must be designed around the unit’s service locations, working areas, and all access conditions. Additionally, a platform might work for one unit, but that doesn’t make it suitable for another unit.
Safety Considerations
Just because there is an RTU platform doesn’t necessarily make it compliant. Considerations such as safe access, platform loading, fall exposure, and any applicable building or workplace requirements need to be evaluated.
Before partnering with an RTU platform manufacturer, specify these conditions.
Equipment service locations
Platform elevation, footprint, and safe access route
Intended loads, personnel, tools, and maintenance materials
Structural support and compatibility with the roof assembly
Fall-protection requirements
Metallic Ladder RTU Solutions
Metallic Ladder creates the HVAC roof platforms, walkways, and catwalks that allow maintenance to occur safely and on schedule. Our modular designs serve as service walkways and catwalks—providing stable, elevated access to rooftop units, equipment, or ductwork. Versatile configurations with custom widths, and height choices up to 90 in (228.6 cm), allow you to configure a platform that meets your specifications.
No matter how your platform is configured, our systems meet and adhere to OSHA compliance and standards, ensuring your protection systems are ready for usage. Our systems are lightweight yet durable and require virtually no maintenance.
Partner with Metallic Ladder for High-Quality RTU Platform Manufacturing Operations
Since 1948, Metallic Ladder has been a trusted supplier of high-end aluminum ladder products, shipping throughout the US and Canada. We take great pride in designing and building aerospace-grade aluminum ladder products with a unique design and a reputation for long service life. Our products are Made in the USA in our Western New York factory and design center.
Our RTU platform is designed to enhance safety and efficiency when servicing HVAC units. Our modular designs serve as service walkways and catwalks—providing stable, elevated access to rooftop units, equipment, or ductwork. Versatile configurations, three widths, and height choices up to 90 in (228.6 cm), allow you to configure a platform that meets your specifications.
Contact Metallic Ladder today for more information regarding our RTU platform solutions.