Greenheck PVe-20 User Manual

Heat Recovery Ventilator

Model PVe

• Light Industrial • Commercial • Institutional

• 1,000 - 6,000 cfm

• 2.0 in. wg External Static Pressure

• Aluminum Plate Heat Exchanger

October

2009

Model PVe

Greenheck’s model PVe is a sensible idea for your fresh outdoor air needs. This aluminum plate air-to-air, heat
recovery unit transfers sensible (heat) energy from the exhaust airstream to the supply airstream. This provides
pretempered fresh outdoor air to your building, allowing you to reduce the size of your heating and cooling
equipment, resulting in lower utility bills, year round.

Additionally, the plate heat exchanger has no moving parts, requiring less maintenance to provide healthy
outdoor air to the building occupants. Light industrial applications, as well as bathroom and locker room
exhaust, are great places to use Greenheck’s model PVe in addition to clean air applications. Typical plate heat
exchanger ventilator applications are listed below.

Animal Shelters Bars and Clubs Churches Dormitories

Locker Rooms Nursing Homes Office Buildings Printing Shops

Restaurants Schools Function Halls Casinos

Veterinary Hospitals Bus Garages Maintenance Shops Auto Repair Facilities

Design Features:

Aluminum Heat Exchanger

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• AHRI Standard 1060 Certified
Performance

• High Heat Transfer

up to 70%

• Corrosion-Resistant

• Cross Airflow Pattern

• Low Static Pressure

1-inch double-wall construction

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with 18 gauge outer and 24 gauge
inner galvanized steel panels,
alternative coatings available as an
option. Double-wall construction
protects insulation from moisture and
prevents insulation fibers from entering the
airstream. Insulation is 1.5 lbs/ft³density.

Downturned hood design lowers supply air intake

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velocities to prevent rain and snow from being
pulled into the unit. Each hood has washable
aluminum mesh prefilters blocking debris
orleaves.

Integral Filter Rack Design

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• 2-inch (51mm) MERV 8 filters included as a
standardoffering

Fork-able base and lifting locations cut into the

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base for quick and easy jobsite off-loading and
unitsetting.

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6

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Solid integral base with ½-inch upturned lips

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around bottom openings, perimeter, and joints
prevent water from leaking through the base into
the building.

Integral stainless steel drain pan that is double-

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pitched for true condensate drainage.

Reliable frost control protection with an optional

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electric preheater.

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Additional Features:

• Quiet running, forward-curved blowers

• Adjustable motor pulleys for final
systembalancing

• Factory provided motor starters and
disconnectionswitch in a sealed control center

• Neoprene isolation on blower assembly to
minimize sound and vibration transmission

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• Door seals utilize a superior bulb-design with
four blades to provide a tight seal to prevent
water penetration. The durable and flexible
design offer years of service

• Liftoff door design with hinges for easier
inspection and dual door handles to provide a
secure and tight seal for gasketing

Standard Operation

How does the Plate Heat Exchanger work?

Improving building indoor air quality, requires fresh outdoor air be provided to the building. Therefore, by code,
most buildings must have a certain amount of exhaust and outdoor air always moving in and out of the building.
A plate heat exchanger ventilator combines both airstreams into one unit, and transfers energy between the
airstreams, while keeping the air separated. All year long the plate heat exchanger is working to reduce energy
consumption while meeting the air supply requirements of your building.

Winter Operation

On cold winter days, the unit significantly helps
heat the outdoor air coming into the building. The
warm exhaust air (return air) heats up the plate
heat exchanger on the way out of the building.
When the cold outdoor air hits the warm plate heat
exchanger, it gets conditioned up to 70% of the
way to the return air temperature. In this example,
if your space is heated to 72°F(22°C) during the
winter, on a 0°F (-18°C) day, the air coming off
of the plate heat exchanger (supply air) would
be 50°F(10°C). The heating equipment now only
needs to heat from 50 to 72°F (10 to 22°C), rather
than 0 to 72°F (-18 to 22°C) saving significant
amounts of energy all winterlong.

Outdoor Air

0°F

-18°C

Return Air

72°F

22°C

Heat Recovery Technology

PVe Plate heat exchanger

Exhaust Air

22°F

-6°C

Supply Air

50°F

10°C

Summer Operation

On hot summer days, the unit takes cool
conditioned air from the space and passes it
through the plate heat exchanger on the way out
of the building. When the hot summer outdoor
air hits the cool plate heat exchanger, it gets
conditioned down almost 70% of the way to
the space temperature. In this example, if your
space is air-conditioned to 75°F (24°C) during the
summer, on a 105°F (41°C) day, the air coming
off of the plate heat exchanger (supply air) would
be 84°F (29°C). The cooling equipment now only
needs to cool from 84°F (29°C) to 75°F (24°C)
saving significant energy throughout the summer.

Outdoor Air

105°F

41°C

Return Air

75°F

24°C

Heat Recovery Technology

PVe Plate heat exchanger

Certifications

PVe’s construction is matched with extensive in-house testing and third-party verification of
performanceandsafety.

Greenheck Fan Corporation certifies that the PVe
models shown herein are licensed to bear the AMCA

Licensed to bear the AMCA seal for
AirPerformance

seal. The ratings shown are based on tests and
procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of
the AMCA Certified RatingsProgram.

Exhaust Air

96°F

36°C

Supply Air

84°F

29°C

Unit is ETL Listed — all internal
electrical components are factory wired
to a single-point power connection

AHRI Standard 1060 certified plate heat
exchanger performance assures the
PVe model will function as required in
demandingenvironments

Every unit is tested at the factory before it is shipped
to the jobsite.

®

Heat recovery plate exchangers are certified by
the AHRI Air-to-Air Energy Recovery Ventilation
Equipment Certification Program in accordance with
AHRI Standard 1060. Actual performance in packaged
equipment may vary. Certified ratings are available
in the Certified Product Directory at http://www.

ahridirectory.org/ahridirectory/pages/home.aspx

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What is the Benefit of
Greenheck Energy Recovery?

For the Building Owner

• Improved Indoor Air Quality

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 PVe 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 out of the outdoor air and in the winter, heat is 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.

For the Maintenance Personnel

• Low Maintenance Equipment

Heat Transfer Plate Exchanger: The aluminum plate heat exchanger is a major

component in the PVe and will require some minimal maintenance. The plate
heat exchanger is removable, making the cleaning quick and easy. To clean
the plate heat exchanger, wash it with water mixed with a light detergent,
rinse with water and let dry. This should be done as often as needed for the
particular application, however, most applications will only need cleaning
once every 5-10 years. Occasionally vacuuming off the face of the plate heat
exchanger is suggested for optimum air performance, which should be done
more frequently depending on the air quality in your location.

Fans: The blowers that are used in the PVe are centrifugal, forward-curved-

type fans. These fans come with easy to adjust 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
PVe unit carries a one year warranty from the ship date.

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