CRT Outdoor Cabinet with ERV Cores

Energy Recovery Ventilators

CRT Model

Model Features

  • MERV-8 filters
  • Fully insulated case
  • Large cores for high efficiency
  • No condensate pan or drain required
  • Rainhood included
  • Access door for easy maintenance and Cleaning
  • Integral lifting lugs
  • AHRI Certified


Model Overview

The CRT series consists of an insulated sheet metal cabinet with 2, 3 or 4 ERV cores and MERV 8 filters. These roof-mounted cabinets designed for retrofit or new construction applications where space for an ERV does not meet the requirements. The CRT provides cost-effective energy recovery with the flexibility in the location of the supply and exhaust blowers.

Warning Icon WARNING: This product can expose you to chemicals including formaldehyde, which is known to the State of California to cause cancer. For more information go to

10-year core warranty, 2-year unit warranty

Ventilation Type: Static Plate, Heat and Humidity Transfer
Insulated sheet metal cabinets with energy exchange cores and filters
Individual CRT Series units can be built to larger air handling systems
Blower not included and must be specified to meet job requirements
Description C2XRT C3XRT C4XRT
Typical Airflow Range CFM 500-2,200 750-3,300 1,000-4,000
AHRI 1060 Certified Core Two (2) L125-00 Three (3) L125-00 Four (4) L-125-00
Airflow Rating Points (for AHRI) 1,500 and 1,120 CFM 2,250 and 1,690 CFM 3,000 and 2,250 CFM
Unit Weight 250 lbs 377 lbs 462 lbs
Shipping Weight 310 lbs 477 lbs 562 lbs
Filters: MERV 8, 2" pleated (20" x 20" nominal sizes) Four (4) Total Six (6) Total Eight (8) Total
Shipping Dimensions (W x L x H) 62" x 48" x 48" 62" x 96" x 48" 62" x 96" x 48"
Insulation: One inch, high density, FSK faced, fiberglass
Options: Double wall construction

Dimensions for C2XRT

Dimensional drawing for the C2XRT models.

Dimensions for C3XRT

Dimensional drawing for the C3XRT models.

Dimensions for C4XRT

Dimensional drawing for the C4XRT models.

Product Line Overview
CRT Sizing Guide

  • General/Clean Air
  • Contaminated Air
  • Energy Recovery