I4R Field Installed Energy Recovery Wheel
Energy Recovery for Spaces Too Tight for Standard Wheels
The I4R solves the access problem that stops most energy recovery projects. Through innovative sectional construction, this field-assembled wheel brings proven I4 performance to mechanical rooms, rooftop installations, and retrofit applications where door openings, elevators, and stairways make traditional wheel installation impossible. If you’ve rejected energy recovery because “the wheel won’t fit,” the I4R changes everything.
Modular Design Enables Retrofit and Space-Constrained Installations
The I4R brings proven I4 wheel performance to challenging installation environments through innovative sectional construction. This modular approach allows the wheel to be assembled on-site, eliminating access limitations that prevent traditional wheel installation. Perfect for retrofits, rooftop applications, and mechanical rooms with restrictive door openings or tight spaces.
- Sectional design facilitates installation in confined spaces
- Same proven I4 performance in a field-assemblable package
- Ideal for retrofit projects where access is limited
- Reduces installation complexity and labor costs
- Enables energy recovery in previously impossible locations
Ideal Applications:
- Retrofit installations with limited access
- Rooftop unit applications
- Mechanical rooms with space constraints
- Existing buildings adding energy recovery
- Projects requiring modular assembly
Fits Through Standard Doorways
Four-section modular design ships in easy-carry kits that pass through 36″ doors, standard elevators, and narrow stairways. No building modifications, no crane lifts, no rigging costs—just straightforward access to previously impossible locations.
Field Assembly Without Performance Sacrifice
Professionally-trained installers assemble I4R wheels on-site using precision-engineered sections. Final assembly undergoes the same rigorous quality control as factory-built wheels, ensuring identical AHRI-certified performance and the same industry-leading 5-year full parts and labor warranty.
Retrofit-Ready Design
Replace any make or model of existing wheel without major mechanical room modifications. The I4R adapts to existing ductwork and space constraints, enabling energy recovery upgrades that were previously cost-prohibitive or physically impossible.
Why I4R Succeeds Where Standard Wheels Can't
- Eliminates Installation Barriers
- Standard wheels: Require large access openings, often impossible in existing buildings
- I4R solution: Modular sections fit through any standard access point
Reduces Installation Costs
- Standard wheels: May require building modifications, cranes, or structural changes
- I4R solution: Hand-carried sections eliminate rigging and access preparation costs
Enables Retrofit Projects
- Standard wheels: Limited to new construction or major renovations
- I4R solution: Opens energy recovery to existing buildings with space constraints
Full I4 Performance in Modular Format
AHRI-Certified Energy Recovery
Same thermal efficiency as standard I4 wheels—transfers both sensible and latent heat for comprehensive HVAC load reduction in all seasons.
Airloop™ Seal Technology
Revolutionary labyrinth seal reduces air leakage by 20%+ compared to competitors, minimizing fan energy consumption and maximizing net energy savings.
Premium Construction
100% aluminum frame and media with optional MS3A desiccant coating. Heavy-duty design withstands demanding commercial environments.
Comprehensive Warranty
Industry-leading 5-year full parts and labor warranty—same coverage as factory-assembled wheels. We stand behind field-installed performance.
Technical Specifications
Core Features
- Four-section modular design for field assembly
- 100% aluminum construction
- Airloop™ labyrinth seal technology
- AHRI 1060 certified performance
- 5-year full parts and labor warranty
- Professional installation support included
- Factory tested before shipment
- NFPA 90A and 90B compliant (UL 723 tested)
Available Configurations
- Enthalpy Recovery: MS3A desiccant coating for heat and moisture transfer
- Sensible-Only: Temperature recovery without humidity transfer
- Active Matrix Technology (3 performance levels)
Available Options
- Top, bottom, and side aluminum panels (frame enclosure)
- Epoxy coating on media for corrosive environments
- Permanently greased bearings
- Wide range of sizes to meet retrofit applications
- Drive controller kit for free cooling and frost control
Professional Installation Support
Every I4R installation includes support from Innergy Tech’s trained installation specialists. Our team ensures proper assembly, seal alignment, and commissioning—guaranteeing factory-level performance from field-assembled components.
Installation Process:
- Modular sections delivered in compact shipping kits
- On-site assembly by certified installers
- Rigorous quality control verification
- Performance testing and commissioning
- Full warranty activation
How it Works
Operating Principle
The I4 energy recovery wheel offers great energy recovery both in summer and winter modes. In summer times, the wheel will greatly reduce the sensible (heat) and latent (moisture) energies leading to significant cooling and dehumidification cost reductions. Following the same principle, during winter months, the wheel will recover both the heat and moisture from the return air stream and add it to the cold outdoor air for great heating and humidification savings.
Ideal Applications
Retrofit Projects:
- Existing mechanical rooms with limited door access
- Buildings where traditional wheels cannot be delivered to installation point
- Upgrading older HVAC systems without major building modifications
Rooftop Installations:
- Penthouse mechanical rooms accessed via elevator or stairway
- Tight rooftop spaces requiring on-site assembly
Space-Constrained Locations:
- High-rise buildings with narrow corridors
- Historic buildings where structural modifications are prohibited
- Multi-story installations requiring transport through building
Replacement Applications:
- Upgrading any make/model of existing wheel regardless of original specifications
- Converting non-recovery systems to energy recovery without ductwork redesign
Downloads
Brochures, Specification Sheets & Manuals
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