CSI Specifications

CA-4XIN PRODUCT SPECIFICATION GUIDE

RENAIRE ERV MODEL – AIR-TO-AIR ENERGY RECOVERY VENTILATOR

FOR EXTERIOR OR INTERIOR INSTALLATION

CSI MASTERFORMAT CATEGORY 23 72 00

User Note: This document is protected by copyright and is the exclusive property of RenewAire, LLC. However, RenewAire authorizes the user to use this document or portions thereof for limited, non-exclusive purposes to prepare written product specifications for the CSI MasterFormat category above. All information contained in this document provided by RenewAire, LLC is informative in nature and is provided without representation or warranty of any kind to the user or any other party, including, without limitation, ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. To the fullest extent permitted by applicable law, RenewAire disclaims all liability, and the user assumes all liability and risk for the use or results of the use of this document or the information contained therein, whether or not modified by the user. Users should consult the website www.renewaire.com to verify that this document corresponds to the most current version.

To view RenewAire product data, including unit description, catalog, and instruction manuals, visit www.renewaire.com/our-ervs/. This product is available in several different configurations. The unit is generally installed as part of a building HVAC system.

For questions regarding this product, please contact your local authorized RenewAire representative. To find your local representative, visit www.renewaire.com/how-to-buy/find-a-dealer/ and select your region.

SECTION 23 72 00 – AIR-TO-AIR ENERGY RECOVERY VENTILATOR

PART 1 – GENERALITIES

1.1 SUMMARY

This section includes air-to-air energy recovery ventilators intended for interior installation. In this document, these units may be abbreviated as 'energy recovery ventilator' (ERV) for brevity.

1.2

General provisions and contract drawings, including general requirements of Division 01, specification sections of Division 23, and common HVAC work requirements, apply to the work specified in this section.

Section 23 09 00: Controls and Instrumentation

1.3 DOCUMENTS TO BE FURNISHED

Product Data: For each type or model of energy recovery ventilator, include the following:
Unit performance data for supply and exhaust air, with system operating conditions indicated.
Enthalpy core performance data for summer and winter operation.
Dimensioned drawings for each installation type, with isometric and plan views, indicating location of connected ducts and required clearance for servicing.
Estimated gross weight of each installed unit.
Filter types, quantities, and sizes.
Installation, Operation, and Maintenance (IOM) manual for each model.
Documents to be furnished for LEED certification: Furnish data for prerequisite E01: Documentation indicating units comply with ASHRAE 62.1-2010, Section 5 – 'Ventilation for Acceptable Indoor Air Quality'.
Shop drawings: For air-to-air energy recovery ventilators, include plans, elevations, sections, details, and connections for other work.
Detail equipment assemblies and indicate dimensions, weights, loads, required clearances, field assembly method, components, and location and size of each field connection.
Operating and maintenance data for air-to-air energy recovery ventilators.

1.4 QUALITY ASSURANCE

Source limitations: Procure air-to-air energy recovery ventilator with all components or accessories from a single manufacturer.
For fabrication, installation, and testing of work covered in this section, employ only workers who are well-trained and experienced and who are thoroughly familiar with the required elements and manufacturer's recommended installation methods.
The ERV core shall be warranted free from manufacturing defects and retain its functional characteristics under normal use for a period of ten (10) years from the date of purchase. The remainder of the unit shall be warranted free from manufacturing defects and retain its functional characteristics under normal use for a period of two (2) years from the date of installation.
Manufacturer shall be able to provide proof of independent testing of the core by Underwriters Laboratory (UL), verifying a Flame Spread Index (FSI) of 25 maximum and a Smoke Developed Index (SDI) of 50 maximum, thereby complying with NFPA90A and NFPA 90B requirements for materials in a compartment handling air intended for circulation in a duct system. Test method shall be in accordance with UL 723.
Certifications: Energy recovery cores used in these products shall be certified by a third-party agency in accordance with AHRI Standard 1060 for energy recovery ventilators. AHRI published certifications shall confirm manufacturer's published performance for airflow, static pressure, temperature and total efficiency, purge air (OACF), and exhaust air leakage (EATR). Products not currently AHRI certified will not be accepted. OACF shall not exceed 1.02 and EATR shall be 0% of balanced airflow.

1.5 COORDINATION

Coordinate size and location of all building penetrations required for installation of each energy recovery ventilator and associated electrical systems.
Coordinate the routing of associated plumbing, HVAC, and electrical work.

PART 2 – PRODUCTS

2.1 MANUFACTURERS

Available Manufacturers: Subject to compliance with specifications contained herein, manufacturers proposing products that can be integrated into the work include, but are not limited to:
RenewAire
Manufacturer shall have been in the business of manufacturing energy recovery ventilators for at least 10 years.

2.2 FABRICATED UNITS

Air-to-air energy recovery ventilators shall be completely factory assembled and consist of a fixed-plate cross-flow heat exchanger with no moving parts, an insulated [single][double] wall cabinet of 20-gauge galvanized steel, filter assemblies for supply and exhaust air, an enthalpy core, with all specified internal components and accessories installed and factory tested. The entire unit, except for field-installed components, shall be factory assembled and tested.

2.3 CABINET

Materials: Insulated [single][double] wall metal cabinet, fabricated to allow access to internal components for servicing.
Exterior casing: 20-gauge galvanized steel (G90), complying with ASTM A653 for components not receiving a painted finish.
Access doors shall be equipped with hinges and airtight closed-cell foam gasketing. Door pressure taps, with captive plugs, shall be provided for measuring transverse pressure to allow for accurate airflow measurement.
Unit shall be factory equipped with duct collars on all duct openings.
Cabinet insulation: Unit walls and doors shall be insulated with 1-inch thick, 4-lb density high-density fiberglass insulation board, faced with aluminum foil and facing, providing a cleanable surface and eliminating any risk of fresh air exposure to fiberglass, with a minimum R-value of 4.3 (hr-ft2-°F/BTU).
Enthalpy core: Energy recovery core shall be total enthalpy type, capable of transferring both sensible and latent energy between air streams. Latent energy transfer shall be accomplished by direct transfer of water vapor from one airstream to the other, without exposing the transfer medium in subsequent cycles directly to exhaust air, then to fresh air. No condensation drain shall be permitted. Energy recovery core shall be designed and constructed to allow for cleaning and removal for servicing. Energy recovery core shall be warranted for ten years. Performance criteria shall comply with AHRI Standard 1060.
Passive frost control: ERV core shall operate without condensation or frosting under normal use conditions (defined as outdoor temperature above -10 °F and indoor relative humidity below 40%). Occasional more extreme conditions shall not affect the core's normal operation, performance, or durability. No condensation drain shall be permitted.

2.7 FILTER SECTION

ERV shall be equipped with 2-inch thick disposable pleated filters [MERV 8] [MERV 13] located in the outdoor and exhaust air streams. All filters shall be accessible from the exterior of the unit.

PART 3 – EXECUTION

3.1 EXAMINATION

Prior to commencing installation, examine the area and conditions to verify that the location is correct and in accordance with installation tolerances and other conditions affecting unit performance. Consult the unit's operation and maintenance manual.
Verify rough-in of plumbing, electrical, and HVAC services to confirm their actual location and compliance with unit requirements. Consult the unit's operation and maintenance manual.
Proceed with installation only after all unsatisfactory conditions have been corrected.

3.2 INSTALLATION

Installation shall be performed in accordance with these written specifications, project drawings, manufacturer's installation instructions as documented in the manufacturer's operation manual, best practices, and all applicable building codes.
Install the unit maintaining required clearances for servicing and maintenance.

3.3 CONNECTIONS

In all cases, industry best practices shall be followed. Connections shall be made in accordance with installation requirements indicated above.
Duct installation and connection requirements are specified in Division 23 of this document.

3.4 FIELD QUALITY CONTROL

Contractor shall inspect field-assembled components and equipment installation. Contractor shall submit results in writing to the Architect/Engineer. Inspection shall include a complete commissioning checklist including (at a minimum) the following items: Completed commissioning checklists as found in the manufacturer's operation manual. Insert any other requirements here.

3.5 STARTUP SERVICE

Contractor shall perform startup service. Clean the entire unit, comb coil fins if necessary, and install clean filters. Refer to Division 23 'Testing, Adjusting, and Balancing' and comply with provisions stated therein.

3.6 DEMONSTRATION AND TRAINING

Contractor shall train owner's maintenance personnel to adjust, operate, and maintain the entire makeup air unit. Refer to Division 01, Section 'Closeout Procedures, Demonstration, and Training'.

	RenewAire RD-4XRT Air-Air Energy Recovery Ventilator Specifications Comprehensive technical specifications for the RenewAire RD-4XRT Air-Air Energy Recovery Ventilator (ERV), detailing product features, installation requirements, operational controls, and quality assurance standards.
	RenewAire CA-3XIN Air-to-Air Energy Recovery Ventilator Specifications Comprehensive CSI specifications for the RenewAire CA-3XIN ERV, detailing product features, quality assurance, installation, and execution requirements for HVAC systems.
	Spécifications du Ventilateur à Récupération d'Énergie RenewAire CA-3XRT Spécifications techniques détaillées pour le Ventilateur à Récupération d'Énergie Air-Air RenewAire CA-3XRT, incluant les exigences générales, l'assurance qualité, les détails du produit et les instructions d'installation.
	RenewAire CA-2XIN ERV: Air-to-Air Energy Recovery Ventilator Specification Guide Detailed CSI specification guide for the RenewAire CA-2XIN Air-to-Air Energy Recovery Ventilator (ERV). Covers general requirements, product specifications, quality assurance, submittals, and execution for indoor or outdoor installation, adhering to industry standards like AHRI 1060 and UL 723.
	RenewAire PA12XIN ERV Specifications Comprehensive technical specifications for the RenewAire PA12XIN Air-to-Air Energy Recovery Ventilator (ERV). This document details general provisions, product requirements including cabinet and core specifications, and execution guidelines for installation, quality control, and start-up. It covers CSI MasterFormat 23 72 00 requirements for HVAC systems.
	RenewAire LE-6XRT Air-to-Air Energy Recovery Ventilator Specification Guide Detailed product specification guide for the RenewAire LE-6XRT Air-to-Air Energy Recovery Ventilator (ERV), covering general information, product details, and execution requirements for HVAC systems.
	RenewAire PA-6XIN ERV: Product Specifications Detailed technical specifications for the RenewAire PA-6XIN Energy Recovery Ventilator (ERV), covering product features, installation, quality assurance, and performance criteria.
	RenewAire HE-1XIN Air-to-Air Energy Recovery Ventilator CSI Specification This document provides the CSI Specification for the RenewAire HE-1XIN Air-to-Air Energy Recovery Ventilator, designed for outdoor or indoor installation. It details product specifications, quality assurance, manufacturers, manufactured units, cabinet construction, blower section, motors, unit controls, sequence of operations, and execution requirements.