Greenheck Fan ERV manual What is the Benefit with Greenheck Energy Recovery?

What is the Benefit with

Greenheck Energy Recovery?

For the Building Owner

•Improved Indoor Air Quality (IAQ)

Introducing fresh, outdoor air to a building is a key component to sustaining excellent indoor air quality. Outdoor air can be very expensive to heat and cool, but the ERV unit can provide an economical approach to delivering outdoor air into a building.

•Energy Savings = Quick Payback

The energy recovery unit provides energy savings throughout the year. In the summer, the energy recovery unit removes heat and moisture out of the outdoor air, but in the winter, heat and moisture are added back into the fresh airstream. When you combine the energy savings from summer and winter operation, they lead to a very fast payback period. In most parts of the United States, the payback is less than 2 years!

		Equipment Reduction Using Energy Recovery on 3000 cfm Outdoor Air
			Cooling	Annual	Heating	Annual Winter	Approximate
			Equipment	Summer	Equipment
	Gas Price*	Electric Cost**				Heating	Payback
			Reduction	Cooling	Reduction
						Savings	(Years)***
			(tons)	Savings	(MBH)
Boston, MA	1.68	0.1495	8.72	226	161	4544	0.78
Minneapolis, MN	1.14	0.0712	9.55	161	217	3261	0.88
St. Louis, MO	1.34	0.0558	12.1	356	173	3088	0.35
Raleigh, NC	1.48	0.073	11.3	424	138	2790	0.57
Houston, TX	1.10	0.1011	13.0	1701	111	1089	0.22
Tampa, FL	1.59	0.0974	13.1	1779	89	988	0.21
Portland, OR	1.21	0.071	4.17	2	123	2930	2.34
Phoenix AZ	1.13	0.0766	9.40	271	161	1478	1.95

*Average gas price (dollars per therm) per region in the first six months of 2007 (source: Energy Information Administration)

**Average electricity cost (dollars per kWh) in March of 2007 (source: Energy Information Administration)

***Assumptions: $3/cfm energy recovery cost; $650/ton avoided cooling equipment cost; 75.6% effective energy wheel; 12 hrs/day 5 days/week operation

For the Maintenance Personnel

•Low Maintenance Equipment

Energy Wheel: The most important component in the ERV is the energy wheel. This device should be inspected and cleaned as necessary, which will vary by application and environment. Any cleaning that is required is simplified by the easy accessible wheel with removable segments. Cleaning requires no special equipment (light detergent and water) and can be performed in a location that is convenient to you.

Fans: The blowers that are used in the ERV are centrifugal, forward-curved- type fans. These fans come with easily adjustable pulleys, belt tension bolts and permanently sealed bearings.

Filters: The 2-inch, 30% efficient MERV 8 filters that are included with the unit are designed for easy access and removal.

•Quality Construction

Greenheck has focused on the manufacturing and unit designs to create well- constructed equipment. Investments in automated manufacturing processes provide accurate and repeatable results, giving excellent part fit and unit strength. Incorporation of innovative designs add to the quality, while keeping maintenance work simple to perform.

•Long-Lasting Equipment

Because of our high-quality construction, the equipment that goes to the field is made to last. As reassurance to the customer, each ERV unit carries a 1-year warranty from the ship date and the wheel components (segments, cassette, belt, and pulleys) carry a 5-year warranty.

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