RenewAire CA4XIN Energy Recovery Module Instructions
- June 16, 2024
- RenewAire
Table of Contents
RenewAire CA4XIN Energy Recovery Module
Specifications
- Product Name: Air-to-Air Energy Recovery Ventilator
- Manufacturer: RenewAire
- Unit Description : This product is a fully assembled Air-to-Air Energy Recovery Ventilator with a fixed-plate cross-flow heat exchanger, an insulated [single][double] wall G90 galvanized 20-gauge steel cabinet, filter assemblies for both intake and exhaust air, and an enthalpy core. All specified components and internal accessories are factory-installed and tested.
Product Usage Instructions
Installation
The Air-to-Air Energy Recovery Ventilator is typically installed as an
element of a building HVAC system. Coordinate the size and location of all
building penetrations required for installation, as well as the sequencing of
construction for associated plumbing, HVAC, and electrical supply.
Manufacturers
RenewAire is one of the available manufacturers of Air-to-Air Energy
Recovery Ventilators. The manufacturer should have a minimum of 10 years of
experience in manufacturing energy recovery ventilators.
INTRODUCTION
Note to User: This document is subject to copyright protection and is proprietary to RenewAire, LLC. However, RenewAire authorizes the user a limited non-exclusive license to use this document or portions of it to prepare written product specifications for the above CSI MasterFormat category. All information in this document as provided by RenewAire, LLC is informational and is provided without representation or warranty of any kind as to the user or any other party, including, without limitation, ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, OR NONINFRINGEMENT. To the greatest extent permitted by applicable law, RenewAire assumes no liability, and User assumes all liability and risk, for the use or results from the use of this document or the information contained herein, whether as modified by the user or not. Users should consult www.renewaire.com to verify that this document represents the most current version.
To view RenewAire product data including unit description, catalog, and
instruction manuals, go to www.renewaire.com/our-
ervs/ This product is available in
multiple different configurations. The unit is typically installed as an
element of a building’s HVAC system.
Questions regarding this product should be directed to your local RenewAire
authorized representative. To locate your local rep, go to www.renewaire.com
/how-to-buy/find-a-dealer/ and select your region.
GENERAL
SUMMARY
- This section includes Air-to-Air Energy Recovery Ventilators for indoor installation.
- Within this document, these units may be referred to as Energy Recovery Ventilators (ERV) for brevity.
RELATED
- Drawing and general provisions of the contract, including General Requirements Division 01, Division 23 Specifications Sections, and common work requirements for HVAC apply to work specified in this section.
- Section 23 09 00: Controls and Instrumentation
SUBMITTALS
-
1. **Product data:** For each type or model of Energy Recovery Ventilator, include the following: - Unit performance data for both Supply Air and Exhaust Air, with system operating conditions indicated.
- Enthalpy plate performance data for both summer and winter operations.
- Dimensioned drawings for each type of installation, showing isometric and plan views, to include the location of attached ductwork and service clearance requirements.
- Estimated gross weight of each installed unit.
- Filter types, quantities, and sizes
- Installation, Operating, and Maintenance manual (IOM) for each model.
- LEED Submittals
- Provide data for prerequisite E01: Documentation indicating that units comply with ASHRAE 62.1-2010, Section 5 -“Systems and Equipment”.
- Shop Drawings: For air-to-air energy recovery ventilators, include plans, elevations, sections, details, and attachments to other work.
- Detail equipment assemblies and indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.
- Operation and maintenance data for air-to-air energy recovery ventilator
QUALITY ASSURANCE
-
1. Source Limitations: Obtain Air-to-Air Energy Recovery Ventilator with all appurtenant components or accessories from a single manufacturer. -
For the actual fabrication, installation, and testing of work under this section, use only thoroughly trained and experienced workers completely familiar with the items required and with the manufacturer’s current recommended methods of installation.
-
The ERV core shall be warranted to be free of manufacturing defects and to retain its functional characteristics, under circumstances of normal use, for ten (10) years from the date of purchase. The balance-of-unit shall be warranted to be free of manufacturing defects and to retain its functional characteristics, under circumstances of normal use, for two (2) years from the date of installation.
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The manufacturer shall be able to provide evidence of independent testing of the core by the Underwriters Laboratory (UL), verifying a maximum flame spread index (FSI) of 25 and a maximum smoke developed index (SDI) of 50 thereby meeting NFPA90A and NFPA 90B requirements for materials in a compartment handling air intended for circulation through a duct system. The method of testing shall be UL Standard 723.
Certifications -
The energy recovery cores used in these products shall be third-party Certified by AHRI under its Standard 1060 for Energy Recovery Ventilators. AHRI-published certifications shall confirm the manufacturer’s published performance for airflow, static
-
pressure, temperature, total effectiveness, purge air (OACF), and exhaust air leakage (EATR). Products that are not currently AHRI-certified will not be accepted. OACF shall be no more than 1.02 and EATR shall be at 0% against balanced airflow.
COORDINATION
- Coordinate the size and location of all building penetrations required for the installation of each Energy Recovery Ventilator and associated electrical systems.
- Coordinate sequencing of construction for associated plumbing, HVAC, and electrical supply.
PRODUCTS
MANUFACTURERS
-
Available Manufacturers: Subject to compliance with specifications contained within this document, manufacturers offering products that may be incorporated into the work include, but are not limited to:
RenewAire -
Manufacturers should be in business for a minimum of 10 years manufacturing energy recovery ventilators.
MANUFACTURED UNITS
- Air-to-Air Energy Recovery Ventilators shall be fully assembled at the factory and consist of a fixed-plate cross-flow heat exchanger with no moving parts, an insulated [single][double] wall G90 galvanized 20-gauge steel cabinet, filter assemblies for both intake and exhaust air, enthalpy core, with all specified components and internal accessories factory installed and tested. The entire unit except field-installed components shall be assembled and test-operated at the factory.
CABINET
-
Materials: Formed [single][double] wall insulated metal cabinet, fabricated to permit access to internal components for maintenance.
-
Outside casing: 20 gauge, galvanized (G90) steel meeting ASTM A653 for components that do not receive a painted finish. Access doors shall be hinged with airtight closed-cell foam gaskets. Door pressure taps, with captive plugs, shall be provided for cross-core pressure measurement allowing for accurate airflow measurement.
-
Unit shall have factory-installed duct flanges on all duct openings.
-
Cabinet Insulation: Unit walls and doors shall be insulated with 1-inch, 4-pound density, foil/scrim faced, high-density fiberglass board insulation, providing a cleanable surface and eliminating the possibility of exposing the fresh air to glass
fibers, and with a minimum R-value of 4.3 (hr-ft2-°F/BTU). -
Enthalpy core: The energy recovery core shall be of the total enthalpy type, capable of transferring both sensible and latent energy between airstreams. Latent energy transfer shall be accomplished by direct water vapor transfer from one airstream to the other, without exposing transfer media in succeeding cycles directly to the exhaust air and then to the fresh air. No condensate drains shall be allowed. The energy recovery core shall be designed and constructed to permit cleaning and removal for servicing. The energy recovery core shall have a ten-year warranty. Performance criteria are to be as specified in AHRI Standard 1060.
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Passive Frost Control: The ERV core shall perform without condensing or frosting under normal operating conditions (defined as outside temperatures above -10ºF and inside relative humidity below 40%). Occasional more extreme conditions shall not affect the usual function, performance, or durability of the core. No condensate drains will be allowed.
FILTER SECTION
ERV shall have 2″ thick [MERV 8][MERV 13] disposable pleated filters
located in the outdoor air and exhaust airstreams. All filters shall be
accessible from the exterior of the unit.
EXECUTION
EXAMINATION
- Before the start of installation, examine the area and conditions to verify the correct location for compliance with installation tolerances and other conditions affecting unit performance. See unit IOM.
- Examine roughing-in of plumbing, electrical, and HVAC services to verify actual location and compliance with unit requirements. See unit IOM.
- Proceed with installation only after all unsatisfactory conditions have been corrected.
INSTALLATION
- Installation shall be accomplished per these written specifications, project drawings, and manufacturer’s installation instructions as documented in the manufacturer’s IOM, Best Practices, and all applicable building codes.
- Install unit with clearances for service and maintenance.
CONNECTIONS
In all cases, industry Best Practices shall be incorporated. Connections
are to be made subject to the installation requirements shown above.
- Duct installation and connection requirements are specified in Division 23 of this document.
FIELD QUALITY CONTROL
- Contractor to inspect field assembled components and equipment installation. Report results to the Architect/Engineer in writing. Inspection must include a complete startup checklist to include (as a minimum) the following: Completed Start-Up Checklists as found in the manufacturer’s IOM. Insert any other requirements here.
START-UP SERVICE
- Contractor to perform startup service. Clean the entire unit, comb coil fins as necessary, and install clean filters. Refer to Division 23 “Testing, Adjusting and Balancing” and comply with the provisions therein.
DEMONSTRATION AND TRAINING
- Contractor to train owner’s maintenance personnel to adjust, operate and maintain the entire Make-Up Air unit. Refer to Division 01 Section Closeout Procedures and Demonstration and Training.
FAQ
- Q: Where can I find RenewAire product data and manuals?
- A: To view RenewAire product data, including unit description, catalog, and instruction manuals, go to www.renewaire.com/our-ervs/.
- Q: How can I locate my local RenewAire authorized representative?
- A: To find your local RenewAire authorized representative, go to www.renewaire.com/how-to-buy/find-a-dealer/ and select your region.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>