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What is the benefit with greenheck energy recovery, For the building owner, For the maintenance personnel – Greenheck Fan Energy Recovery Ventilator ERV User Manual

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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!

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.

What is the Benefit with

Greenheck Energy Recovery?

Equipment Reduction Using Energy Recovery on 3000 cfm Outdoor Air

Gas Price*

Electric Cost**

Cooling

Equipment

Reduction

(tons)

Annual

Summer

Cooling

Savings

Heating

Equipment

Reduction

(MBH)

Annual Winter

Heating

Savings

Approximate

Payback

(Years)***

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