Product Specification Guide
Greenheck Model MiniVent –– Energy Wheel Air-to-Air Energy Recovery Ventilator
For Outdoor or Indoor Installation
CSI MasterFormat Category 23 XX XX 
(Greenheck suggests the use of category 23 72 13)

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Note to User: This document is subject to copyright protection and is proprietary to Greenheck Fan Corporation.  However, Greenheck Fan Corporation authorizes the user a limited non-exclusive license to use this document or portions of it for the purpose of preparing written product specifications for the above CSI MasterFormat category.  All information in this document as provided by Greenheck Fan Corporation is informational in nature 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 NON-INFRINGEMENT.  To the greatest extent permitted by applicable law, Greenheck Fan Corporation 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.greenheck.com to verify that this document represents the most current version.

Specifier notes are to be in red font (see below):

Specifier Notes: This product specification guide is written in accordance to the Construction Specifications Institute (CSI) Format - 2004 Edition.

This section must be carefully reviewed and edited by the Engineer to meet the requirements of the project and local building code. Coordinate with other specification sections and the drawings.

Delete all unnecessary “Specifier Notes” when editing this section.
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1.	GENERAL
1.1	  SUMMARY
A.	This section includes Energy Wheel Air-to-Air Energy Recovery Ventilators for indoor installation. If unit is intended for installation on a concrete slab, verify design requirements and construction responsibility for the slab. 
B.	Related sections include the following:
1.	Section 22 00 00: Scope of Work
2.	Section 22 01 00: General Provisions
3.	Section 22 07 00: Insulation
4.	Section 22 10 00: Plumbing
5.	Section 23 09 00: Controls and Instrumentation
6.	Section 23 00 00: Electrical
Include any other applicable specification divisions

1.2 SUBMITTALS (This section should include all data needed by A/E to verify suitability of product for each application. As a minimum, it should include CAPS data and IOM).
A. 	Product Data: For each type or model include the following:
1.	Complete fan performance curves for both the supply air and exhaust air, with system operating conditions indicated, as tested in an AMCA Certified chamber.
2.	Energy wheel performance data for both summer and winter operation.
3.	Motor ratings, electrical characteristics, motor, and fan accessories.
4.	Combined efficiency data per ARI Guideline V-2003 for each model. Data shall include RER, COP, Unitary Net Cooling, Unitary EER and CEF.
5.	Material types and gauges of all component pieces and assemblies.
6.	Dimensioned drawings for each type of installation, showing isometric and plan views, to include location of attached ductwork and service clearance requirements.
7.	Estimated gross weight of each installed unit.
8.	Installation, Operating and Maintenance manual (IOM) for each model.

1.3	QUALITY ASSURANCE
A.	Source Limitations: Obtain unit with all appurtenant components or accessories from a single manufacturer.
B.	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.
C.	Product Options: Drawings must indicate size, profiles, and dimensional requirements of Energy Recovery Units and are to be based on the specific system indicated. Refer to Division 1 Section “Product Requirements”.
D.	Certifications:
1.	Entire unit shall be ETL Certified per U.L. 1995 and bear an ETL sticker.
2.	Energy wheel performance shall be AHRI Certified per Standard 1060.

1.4	COORDINATION	
A.	Coordinate size and location of all building penetrations required for installation of each unit and associated plumbing and electrical systems.
B.	Coordinate sequencing of construction of associated HVAC, electrical supply [roofing contractor].

1.5	EXTRA MATERIALS
A.	Furnish extra materials described below that match products installed, are packaged with protective covering for storage, and identified with labels describing contents.
1.	Filters: [(Insert quantity) set(s) of [MERV 8] or [MERV 13] disposable filters for each unit]. 
2.	One spare energy wheel belt.

2.	PRODUCTS
2.1	MANUFACTURERS
A.	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:
1.	Greenheck Fan Corporation

2.2 MANUFACTURED UNITS Indicate major components that must be included as part of the unit.
A.	Unit shall be fully assembled at the factory and consist of an insulated metal cabinet, energy wheel, backdraft dampers, [frost control], filter assembly for intake and exhaust air, supply air blower assembly, exhaust air blower assembly, electronically commutated motors (ECM) and an electrical control center. All specified components and internal accessories factory installed and tested and prepared for single-point high voltage connection. 

2.3 CABINET 
A.	Materials: Formed single wall insulated metal cabinet, fabricated to permit access to internal components for maintenance. 
1.	Outside casing: 18 gauge, galvanized (G90) steel meeting ASTM A653 for components that do not receive a painted finish. Corrosion rates can vary greatly depending on environmental factors, yet it is common acceptance that the life of zinc is a linear function of the coating mass. To obtain a higher life expectancy for an application, the user should utilize twice the coating mass. Ex. A G90 coating mass will exhibit approximately 150% longer life than the G30 coating. 
2.	Internal assemblies: [18 gauge, galvanized (G90) steel] except for motor supports which shall be minimum12 gauge galvanized (G90) steel.
B.	Access doors shall be bolt on.
C.	Shall have factory-installed duct flanges on all duct openings. 
D.	Cabinet Insulation: Comply with NFPA 90A and NFPA 90B and erosion requirements of UL 181.
1.	Materials: Fiberglass insulation. If insulation other than fiberglass is used, it must also meet the Fire Hazard Classification shown below.
a.	Thickness: ½ inch (12.7 mm)
b.	Fire Hazard Classification: Maximum flame spread of 25 and smoke developed of 50, when tested in accordance with ASTM E84 and UL 723.
c.	Location and application: Full coverage of entire cabinet exterior to include walls, roof, and floor of unit. Insulation shall be of semi-rigid type.
E.	Energy wheel: Energy wheel shall be of total enthalpy, rotary air-to-air type, and shall be an element of a removable energy wheel cassette. The cassette shall consist of a galvanized steel framework (designed to produce laminar air flow through the wheel), an energy wheel as specified and a motor and drive assembly. The cassette shall incorporate a pre-tensioned drive belt. Note to A/E: Various energy wheel manufacturers are known to build non-segmented wheels. Segmented wheels are known to provide substantial time and labor-saving benefits over the entire life of the energy wheel. The wheel media shall be a polymer film matrix in a stainless-steel framework that is removable for servicing. Silica gel desiccant shall be permanently bonded to the polymer film and shall be designed and constructed to permit cleaning and servicing. The energy wheel is to have a five-year warranty. Performance criteria are to be as specified in AHRI Standard 1060, complying with the Combined Efficiency data in the submittal.
F.	Supply Air and Exhaust Air blower assemblies: Blower assemblies consist of an electronically commutated motor (ECM) as specified by A/E and a direct drive blower. 
G.	Frost control: [none] [timed exhaust]
H.	[Timed exhaust shall be provided for frost control of the energy wheel. Control system shall include an outdoor air thermostat and pressure sensor on the wheel assembly to initiate frost control sequence]. (See Frost Control Application in IOM).
I.	Dampers: Backdraft dampers for the discharge air streams shall be factory installed. Note: Backdraft dampers are standard. 
2.4   BLOWER 
A.	Blower section construction, Supply Air and Exhaust Air: Direct drive motor and blower shall be assembled onto a galvanized steel platform.
B.	Blower assemblies: Shall be statically and dynamically balanced and designed for continuous operation at maximum rated fan speed and horsepower.
C.	Centrifugal blower housing: Formed and reinforced steel panels to make curved scroll housing with shaped cutoff. 
D.	Forward curved blower (fan) wheels: Galvanized or aluminum construction with inlet flange and shallow blades curved forward in direction of airflow. Mechanically attached to shaft with set screws.
E.	Blower performance shall be factory tested for flow rate, pressure, power, air density, rotation speed, and efficiency. Ratings are to be established in accordance with AMCA 210, “Laboratory Methods of Testing Fans for Rating”.	

2.5	MOTORS
A.	General: Blower motors greater than ¾ horsepower shall be “NEMA Premium™” unless otherwise indicated. Minimum compliance with EPAct minimum energy-efficiency standards for single speed ODP and TEFC enclosures is not acceptable. Motors shall be heavy-duty, permanently lubricated type to match the fan load and furnished at the specified voltage, phase, and enclosure. Drives shall be sized for a minimum of 150% of driven horsepower and pulleys shall be fully machined cast-type, keyed and fully secured to the fan wheel and motor shafts. Electric motors of ten horsepower or less shall be supplied with an adjustable drive pulley. Comply with requirements in Division 23 05 13, matched with fan load. 
B.	Motors shall be Select one [60 cycle, 1 phase 115 volts] [60 cycle, 1 phase 208 volts] [60 cycle, 3 phase 230 volts]. The designation “NEMA Premium™” applies to electric motors with efficiencies that are “better than EPAct”. The terms “high efficiency” or “premium efficiency” have no industry definitions. 

2.7	FILTERS
A.	The outdoor and exhaust air filters shall be 1-inch deep, 30% efficient disposable filters. Filter rack shall be internal to the unit and factory installed. 
B.	[Unit shall have permanent metal filters located in the outdoor air intake and shall be accessible from the exterior of the unit]. [[MERV8] [MERV 13]] disposable pleated filters shall be provided in the intake air stream and [[MERV8] [MERV 13]] filters in the exhaust air stream]. Note: 1” thick MERV 8 filters are standard.

3.	EXECUTION
3.1	EXAMINATION
A.	Prior to start of installation, examine area and conditions to verify correct location for compliance with installation tolerances and other conditions affecting unit performance. See unit IOM.
B.	Examine roughing-in of plumbing, electrical and HVAC services to verify actual location and compliance with unit requirements. See unit IOM.
C.	Proceed with installation only after all unsatisfactory conditions have been corrected.

3.2 INSTALLATION
A.	Installation shall be accomplished in accordance with these written specifications, project drawings, manufacturer’s installation instructions as documented in manufacturer’s IOM, best practices, and all applicable building codes.

3.3 CONNECTIONS
A.	In all cases, industry best practices shall be incorporated. Connections are to be made subject to the installation requirements shown above.
1.	Duct installation and connection requirements are specified in Division 23 of this document.
2.	Electrical installation requirements are specified in Division 26 of this document. 

3.4 FIELD QUALITY CONTROL
A.	Manufacturer’s Field Service: Engage an authorized service representative to inspect field assembled components and equipment installation, to include electrical and piping connections. Report results to A/E in writing. Inspection must include a complete startup checklist to include (as a minimum) the following: Completed start-up checklists as found in manufacturer’s IOM. Insert any other requirements here.

3.5 START-UP SERVICE
A.	Engage an authorized service representative to perform startup service. Clean entire unit and install clean filters. Measure and record electrical values for voltage and amperage. Refer to Division 23 “Testing, Adjusting and Balancing” and comply with provisions therein.

3.6 DEMONSTRATION AND TRAINING:
A.	Engage an authorized service representative to train owner’s maintenance personnel to adjust, operate, and maintain the entire unit. Refer to Division 01 Section Closeout Procedures and Demonstration and Training.