Large HVAC Access Panels: Cost-Effective, Easy-to-Install Solutions
Access to Large HVAC Equipment: A Code Requirement
On HVAC projects, access to equipment is not optional.
Canadian building codes and mechanical standards require HVAC systems to remain accessible for inspection, servicing, and ongoing maintenance throughout their service life. This applies to equipment installed in mechanical rooms, service shafts, as well as wall and ceiling assemblies.
In commercial, institutional, and multi-residential buildings, ERV systems and centralized HVAC equipment are often large and installed in tight mechanical spaces.
Jobsite Challenges When Accessing Large HVAC Equipment
While maintaining ERV and HVAC systems is critical for long-term performance and code compliance, accessing large equipment creates real challenges on site.
- Higher costs associated with the product and installation
- More complex handling resulting in increased installation time on site
- Installation typically requiring two installers due to weight and size
- Restricted access that may complicate maintenance operations
Cendrex Expertise and the Development of a Removable HVAC Access Solution
Based on these field realities, Cendrex developed its HVAC Collection through a focused research and development process grounded in real installation and maintenance conditions. The goal was straightforward: create a cost-effective access solution that installs faster on site while providing full, practical access to large mechanical equipment.
The Cendrex HVAC Collection features two fully removable access panels designed for large openings. This design allows full clearance of the opening, simplifies handling during installation, and makes servicing large HVAC and ERV equipment easier. Developed specifically for these applications, it represents a practical innovation in large-format HVAC access panels.
Key advantages of the Cendrex HVAC Collection include:
- Designed for large and oversized openings while maintaining consistent stability and performance
- Faster and simplified installation thanks to a removable door that allows independent frame installation into the wall, even for larger formats
- Reduced labor costs through a lighter frame design enabling single-person installation without requiring two installers
- Designed for HVAC applications, mechanical rooms, as well as wall and ceiling installations
Two Solutions Designed for HVAC Applications
AHR — Removable Universal Access Panel with Exposed Frame
The AHR model is designed for medium to large HVAC openings where installation speed and service efficiency are priorities.
Key Features
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Suitable for HVAC systems and general service applications
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Concealed hinge ensuring a clean, streamlined finish
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Removable door allowing independent frame installation into the wall
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Lightweight design facilitating handling by one person
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Single-person installation possible, reducing labor costs
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Custom sizes manufactured within 5 days
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Maximum dimensions: 48″ x 60″
AHU — 20G Removable Access Panel for Large Openings with Exposed Frame
The AHU model is intended for large HVAC openings and walk-through access applications where structural stability and durability are critical.
Key Features
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Reinforced structure ensuring long-term durability
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Concealed hinge with minimal locking system
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Removable door simplifying frame installation into the wall, even for large formats
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Frame optimized for easier handling
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Installation achievable by a single installer depending on size
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Anti-sag performance suitable for oversized openings
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Standard sizes available
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Custom sizes manufactured within 5 days
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Maximum dimensions: up to 96″ x 96″
Built for Today’s HVAC Jobsites
As ERV and HVAC systems continue to grow in size and complexity, access to equipment has become a key consideration on HVAC jobsites.
The Cendrex HVAC Collection—including the AHR and AHU models—provides durable, reliable access panel solutions designed to simplify installation, reduce jobsite constraints, and meet the code requirements of large-scale HVAC projects.