Frequently asked questions

Custom Mechanical Equipment serves commercial and institutional customers nationwide, including school districts, universities, hospitals, government facilities, and commercial real estate owners. PMZ3 multizone HVAC and custom rooftop screening are installed in office buildings, K-12 and higher-education campuses, healthcare facilities, retail centers, and other one- to three-story commercial structures across the United States.

Use the Get a Quote button in the site navigation to submit your project details, or contact us directly at (866) 687-9803 or sales@cmemultizone.com. Share building type, equipment scope, timeline, and whether the project is retrofit or new construction. Custom Mechanical Equipment provides project-specific quotes - not off-the-shelf catalog pricing.

Yes. Custom Mechanical Equipment supplies custom-manufactured equipment and stays involved through the project. For PMZ3 multizone HVAC, that includes a site visit before fabrication, custom unit configuration, installation oversight, startup assistance, and owner training. Our engineering team is available throughout the project to answer technical questions and resolve field issues alongside your contractors. Rooftop screening projects include factory layout review, technical documentation, and installation guidance - with optional field or factory installation when your schedule requires it.

CME equipment is AGA (American Gas Association) and CGA (Canadian Gas Association) certified, UL Listed, Energy Star rated, and ARI Standard 240 compliant. Systems are engineered to meet or exceed applicable local and national building codes. Certification badges are shown at the bottom of this page.

A multizone HVAC system delivers heating and cooling to multiple areas of one building from a shared rooftop unit. Custom Mechanical Equipment builds PMZ3 penthouse multizone units with independent zones so each space is conditioned without mixing hot and cold air in the same duct.

CME multizone HVAC uses separate heating and cooling sections per zone inside one penthouse, providing independent operation and modern BACnet compatibility. Unlike traditional hot deck and cold deck systems that blend heated and cooled air to reach setpoint, the PMZ3 is built around dedicated zone control and improved serviceability.

PMZ3 units are built for one- to three-story commercial buildings that require independent zone control. Common applications include K-12 schools and universities, healthcare and clinics, office and municipal buildings, and retail and mixed-use properties. Units are custom sized from 5 to 45 tons with 1 to 18 zones.

Yes. A field technician measures the rooftop and confirms curb, duct, and electrical layout before fabrication begins. Custom Mechanical Equipment also oversees installation, performs startup, and provides training on the roof.

Standard equipment includes BACnet IP or MS/TP so your building automation contractor can connect to existing systems. Other protocols are available on request.

Lead times vary based on unit size, zone count, configuration options, and current production schedule. Contact our team at (866) 687-9803 or sales@cmemultizone.com for a project-specific timeline. Custom Mechanical Equipment works with your installation window whenever shop capacity allows.

Custom Mechanical Equipment works around your schedule. The PMZ3 is designed as a replacement for traditional multizone systems already on commercial buildings, so rework inside the building is typically limited. CME measures the existing curb and supply ductwork and designs the unit to match current rooftop conditions.

Chillers, cooling towers, condensers, heat pumps, exhaust fans, rooftop package units, and other specialty mechanical equipment. Layouts are built to your field dimensions, not pulled from a standard catalog size.

Standard screens typically take 8 to 12 weeks from approved layout. Louvered systems run about 12 to 14 weeks. Shorter timelines are sometimes possible depending on shop load; your CME representative confirms a project-specific range on the discovery call.

Ideally, screening is coordinated during design development or early in the submittal process so it can be detailed alongside the HVAC equipment layout. Custom Mechanical Equipment is frequently brought in late and can still help you avoid delays by moving quickly once the rooftop layout is confirmed.

Unit-mounted screens attach to the curb or equipment frame. Post-mounted screens stand independent of the unit when weight, vibration, or layout requires it. CME reviews your rooftop plan and recommends the mount that keeps service access intact.

No. That is the point of the factory layout review. Louver panels, open sections, and removable doors are positioned so rated airflow paths stay clear and technicians can reach service panels without dismantling the entire screen. Standard screening systems are engineered for wind exposure up to 120 mph, with project-specific engineering available where requirements exceed standard criteria.

Most projects are installed by the general contractor or mechanical contractor following CME drawings. Custom Mechanical Equipment also offers field installation or factory installation when your schedule requires a single responsible party on the roof.

Your CME representative provides current panel and color lists during layout. Standard, premium, and metallic color tiers are available, with custom color match when the owner needs an exact building finish.