TL;DR
At Hamilton at Grand Plaza in Allentown, 35 heat pumps needed exposed lineset protection. Slimduct PD and Slimduct RD covered refrigerant lines, secured with tamper-resistant screws, and prevented copper theft. The system provided a clean, professional finish while protecting piping from weather, impact, and unauthorized access on the building façade.
Commercial HVAC work calls for clean routing, strong protection, and a finish that looks right on the building. This need becomes even greater when exposed copper lines run across a visible wall, rooftop, or exterior façade. Open refrigerant lines can attract damage, weather exposure, and theft risk.
That was the challenge at the Hamilton at Grand Plaza condominiums in Allentown, Pennsylvania. The property was originally an office building and was later converted into a multifamily housing project with 118 condominium units. During the HVAC upgrade, 35 heat pumps needed wall-mounted condensing units on the back side of the building.
The project team needed a clean way to cover exposed heat pump linesets across the façade. They also needed practical copper theft prevention in an area where exposed copper could create concern. The solution combined Slimduct PD with Slimduct RD to protect the lines, secure the installation, and give the building a finished exterior.
Why Exposed Linesets Need Better Protection
When your HVAC lines run outside a building, they face more than normal wear. Rain, wind, sun, impact, debris, and tampering can affect exposed components over time. On multifamily properties, offices, schools, hotels, and commercial buildings, the system also needs to look organized.
Bare copper lines can draw attention. That creates a real concern for property owners, contractors, and facility teams. Copper has resale value, so exposed piping can become a target when it sits within reach or remains visible on a wall.
A strong commercial lineset cover helps reduce that risk. It creates a physical barrier around refrigerant piping and related components. It also supports a more professional finish, which matters when your work sits on a visible building exterior.
How Slimduct PD Supported the Allentown Project
The Allentown project used Slimduct PD as the round PVC lineset cover between the main Slimduct RD run and the outdoor units. This setup helped cover the line sets where they transitioned to each piece of equipment.
That detail matters. Many projects use a larger main chase or cover for long vertical or horizontal runs, then need a clean connection point near the condenser. Slimduct PD fills that role well. It gives the installer a durable cover for the final equipment connection without leaving exposed sections that weaken the overall look.
On this project, Slimduct PD helped the team keep the façade tidy while routing lines to 35 heat pumps. The ivory color also matched closely with the outdoor units, which helped the installed system blend into the building exterior.
A Cleaner Finish for Multifamily HVAC Installations
Building conversions can create hard installation choices. Older office properties were not always designed for modern heat pump layouts. Your team may need to route lines across surfaces that tenants, owners, or visitors can see every day.
That is where HVAC line set covers make a major difference. They help hide piping, wiring, and drain lines while giving the project a planned appearance. Instead of exposed refrigerant lines running across the façade, you get a clean cover system that supports the architecture.
For a multifamily HVAC installation, appearance and function both matter. Your client wants reliable comfort. The property owner wants a clean exterior. Your crew wants a product that installs without slowing the job. Slimduct PD helps support all three goals.
Added Security Where Copper Theft Is a Concern
The existing Allentown post focused on copper theft prevention, and that point remains central to this revised post. When you cover line sets with Slimduct PD and secure the system with tamper-resistant hardware, you add a valuable layer of protection.
No cover can remove every theft risk, but a covered and secured lineset is harder to access than bare copper. That added barrier can discourage quick tampering and make the system less visible to someone looking for exposed metal.
For commercial sites, apartment buildings, and converted properties, this matters. You are not only protecting HVAC performance. You are also helping protect the owner’s investment, reduce service disruptions, and keep the property looking maintained.
Why Contractors Like the Installation Process
The installation process was fairly easy. The crew received preassembled components, mounted the cover on the wall, and used Big Tie inside the Slimduct RD casing to hold refrigerant lines in place.
That simple installation experience matters on larger jobs. When you have many outdoor units, repeated line runs, and visible exterior work, small time savings can add up. A clean cover system helps your team move with more confidence and fewer field adjustments.
Slimduct PD also offers a practical path for transitions. It can connect protected line runs to the equipment in a way that looks finished instead of improvised. That helps contractors keep quality consistent from the first unit to the final connection. Watch this YouTube video to see Slimduct RD in action.
Built for Commercial HVAC Line Routing
Slimduct PD works well for commercial HVAC installation projects because it supports both protection and appearance. It covers refrigerant piping, wiring, and drain lines in a neat format. It also works with fittings that help you handle direction changes, branches, reductions, and wall transitions.
This flexibility helps your team plan routes across walls, rooftops, and equipment areas. You can create cleaner paths between equipment and the main protected run without leaving awkward exposed sections.
For heat pump, VRF, and mini split applications, that kind of routing support can improve the final result. Your installation looks organized, and the covered components stay better protected from outside contact.
Why Slimduct PD and RD Work Well Together
The Allentown project used Slimduct RD for the main metal cover and Slimduct PD for the PVC transition to the outdoor units. This combination gave the building a strong, organized protection system.
Slimduct RD provided rigid metal coverage for larger line runs. Slimduct PD helped complete the final route to the condenser. Together, they allowed the crew to protect visible line sets without creating a messy exterior layout.
This matters most on commercial and multifamily buildings, where many units can sit in the same area. Without a planned cover system, the wall can quickly look cluttered. With the right lineset protection, each run has a clear path and a clean finish.
Where Slimduct PD Makes the Most Sense
You should consider Slimduct PD when your project has surface-mounted linesets in visible or exposed areas. It can be a strong fit for apartment conversions, office-to-residential projects, rooftop equipment zones, mixed-use buildings, and commercial heat pump systems.
It also works well when your team needs a clean transition from a larger main cover to individual outdoor units. In those cases, Slimduct PD helps close the gap between function and appearance.
If theft, tampering, or exterior damage is a concern, covered linesets give the project a smarter protection plan. The result feels more complete for the installer, the property manager, and the owner.
About Inaba Denko America
Inaba Denko America supplies HVAC accessories engineered by Inaba Denko of Japan for contractors and distributors across North America. The company supports clean, reliable installations for mini split, VRF, and unitary heat pump systems.
From Slimduct PD and Slimduct RD to line sets, drain hoses, mounting systems, and related accessories, Inaba Denko America helps your team protect HVAC components and finish each project with confidence.
Protect Linesets and Finish the Job Right
The Hamilton at Grand Plaza project shows how the right cover system can solve several jobsite needs at once. The building needed 35 heat pumps, visible exterior routing, and added copper theft prevention. Slimduct PD and Slimduct RD gave the project a clean, secure, and professional result.
When your installation calls for exposed line routing, do not leave copper vulnerable or the building exterior unfinished. Choose Slimduct PD for practical refrigerant line protection, clean transitions, and a finished look that supports the quality of your work.
Inaba Denko America offers different HVAC accessories, lineset covers, and supporting hooks for residential and commercial installations across North America. Our products help you plan the right lineset protection solution for your next project.
Connect with us now to get a quote.
FAQs
What Is Slimduct PD Used for?
Slimduct PD is used to cover and protect refrigerant piping, wiring, and drain lines in commercial HVAC projects. It is especially useful for surface-mounted linesets near outdoor equipment.
Can Slimduct PD Help with Copper Theft Prevention?
Yes, it helps cover exposed copper lines, which can reduce visibility and make access harder. Tamper-resistant screws can add another layer of protection.
Is Slimduct PD A Good Fit for Multifamily Buildings?
It works well for a multifamily HVAC installation because it keeps exterior line runs clean, protected, and organized across multiple units.
Can Slimduct PD Be Used with Slimduct RD?
Yes, it can work with Slimduct RD for transitions between the main protected run and outdoor equipment. This setup helps create a cleaner commercial installation.
Why Should You Cover Exterior Heat Pump Linesets?
Covered heat pump linesets look cleaner and receive better protection from weather, impact, and tampering. A proper cover system also helps the building exterior look more professional.
