Greenheck VKERS-030 User Manual

Energy Recovery Laboratory Exhaust

Model Vektor ERS-MD

For Vektor™-MD Fan Systems

March

2010

Model Vektor ERS-MD

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Greenheck’s Vektor™-ERS is a pre-engineered laboratory exhaust energy recovery system. In combination
with our Vektor™-MD high plume dilution blowers, this system is designed to effectively remove contaminated
laboratory exhaust and dilute and disperse the exhaust high above the roof.

Vektor energy recovery exhaust systems utilize run around coils to recover energy from the exhaust airstream
and apply the energy to the make-up air system. Vektor ERS offers a safe and efficient solution to minimize the
possibility of cross-contamination between exhaust and supply airstreams. Vektor ERS run around coil loops can
achieve energy recovery efficiencies up to 50% to lower heating and cooling costs for the laboratory facility.

Did you know…

Laboratories typically require 100% outside air with ventilation rates



ranging from 6 to 15 air changes per hour.

ASHRAE 90.1 indicates that energy recovery to pre-



conditioned make-up air is a suggested energy savings
method for laboratories in excess of 15,000 CFM.

NFPA 45 states only general exhaust can utilize air-



to-air energy recovery due to the potential of cross
contamination, which is a violation of standard. Vektor
ERS utilizes air-to-liquid energy recovery, eliminating
the possibility of cross-contamination and recover
more exhaust energy.

Studies show that approximately 50% of the energy



costs associated with operating a
laboratory are by the heating
and cooling of make­up air. The addition of
energy recovery can
significantly reduce
this cost.

Model Vektor™-MD is listed
for electrical (UL/cUL 705).
File No. E40001

Type of Heat Transfer Sensible

Run Around Coil Loop

Specifications

Sensible Effectiveness % Up to 50%

Location of Exhaust/Supply Airstream Separate

Cross-Contamination None

Cross-Leakage None

Temperature Range -45° to 200°F

2

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VKERS - 04 0 -0 7 5- M D3 0 3

Model Name

Cabinet Size

020, 030, 040, 060

Number of Fans

1, 2, 3

Cabinet Height

75, 90, 110

Fan Type

MD

Fan Size

15 20 27 36 49
16 22 30 40 54
18 24 33 44

Vektor ERS Features:

• Four pre-engineered energy recovery plenum sizes

• Heresite coated coils

• Insulated double-wall plenum with stainless steel
interior

• Run around coil loop energy recovery

• Coil bypass option

• Physical separation between exhaust and supply

• Single source responsibility

Vektor MD Features:

• High plume, induced flow dilution blower

• Utilizes an efficient and quiet mixed flow impeller

• Bifurcated fan housing with motor, drive, and
bearings located out of the airstream for safe, easy
servicing

• AMCA 260 licensed for Induced Flow Fans

• Single source responsibility

Performance Ranges

VKERS-020

Up to 20,000 cfm

VKERS-030

12,500 - 30,000 cfm

VKERS-040

17,000 - 43,000 cfm

VKERS-060

30,000 - 60,000 cfm

Applications

• University
Laboratories

• Pharmaceutical
Companies

• Biosafety
Laboratories

• Research Facilities

• Any contaminated
exhaust system
where reducing
energy cost is
desired

3

ERS System Operation

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The Vektor ERS uses a corrosion-resistant run around liquid coil loop to recover energy from the laboratory
exhaust airstream and transfer the energy to the laboratory make-up air. The energy transfer preheats make-up
air in the winter and precools make-up air in the summer.

Diluted High
Plume Exhaust

Reheat Coil

Cooling Coil

VAV Bypass

Air

Vektor

Energy Recovery Coil

Filters

Pump

Exhaust

Make-Up
Air Unit

Glycol Loop

Supply

Energy Recovery Coil

Filters

Outside
Air

Safe, Reliable, Cost-Effective

The run around coil loop is the preferred method of recovering energy from hazardous lab exhaust because
separation is maintained between the exhaust and supply airstreams, eliminating the concern of cross­contamination. The exhaust coil is corrosion-resistant coated and in subfreezing climates, a percentage of glycol
is added to depress the freezing point of the circulated fluid. The Vektor ERS system also eliminates the need to
duct large volumes of supply and exhaust air to a common point—which is required with other energy recovery
systems—reducing the Vektor ERS system installed cost and improving economic payback.

Significant Energy Savings

The Vektor ERS can significantly
reduce a laboratory facility’s
heating and cooling load. The
tables illustrate preheating and
precooling temperatures of
make-up air and load reductions
for various cities based on
standard weather bin data.
Greenheck offers a complete
thermodynamic and economic
analysis of a Vektor ERS for your
specific project.

Outdoor Air

Temperature (°F)

Preheat Air

Temperature (°F)

Preconditioning of make-up air based upon 72° exhaust and 45% energy recovery efficiency.

City

Syracuse 9,458,475 (1,594,125) $90,887
Portland 3,528,330 (1,647,263) $59,063
Atlanta 7,556,153 (1,657,890) $42,303
Chicago 13,677,593 (1,657,890) $86,261
Cincinnati 13,794,495 (1,594,125) $75,385
Boston 8,927,100 (1,657,890) $77,779

Energy saving shown for annual operation, at outdoor TMY2 bin data for the specified location.
Systems operating at 50,000 cfm, equal supply and exhaust; $0.1/kwh, and $1.75/mmbtu,
assuming 80% heating efficiency.

NOTE: kwh and mmbtu costs may vary by locale.

Winter / Preheated Summer / Precooled

-10 0 10 20 30 85 95 105

26.9 32.4 37.9 43.4 48.9 79.2 84.7 90.2

BTUH Saved Annually

Heating Cooling

Net Dollars Saved

Annually

4

Dimensions, Weights and

Bypass Air Inlet (typical)

for VAV Systems

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Configurations

E

C

A

A (Length) B (Width)

Maximum Minimum Maximum Minimum Maximum 75 90 110

VKERS-020 120 133 153

VKERS-030 154 127 181 70 84 4042 4644 NA

VKERS-040 206 147 181 70 84 5117 5824 NA

VKERS-060 270 147 181 70 84 6609 7515 8001

Coil Section Height*

75 90 110

C

D

“A” Inlet

Vertical Airflow

B

D

Fan Section Height*

70 70 3564 4386 NA

“B” Inlet

Horizontal Airflow

Weight** (pounds)

E Overall System Height

Fan Size 15 16 18 20 22 24 27 30 33 36 40 44 49 54

Minimum 145 147 161 174 169 177 193 202 194 201 209 225 240 250

Maximum 145 161 175 188 183 191 207 216 208 215 223 239 254 264

Dimensions shown in inches.
* = Curb not included
** = Approximate weight based on maximum coil size and maximum number of filters. Fans, bypass plenums and roof curbs

are not included. Obtain from CAPS (Computer Aided Product Selection).

Available Configurations

1x1 2x1 3x1

Bypass Air Inlet (typical)

Vektor MD Selections by Cabinet Size

1x1 2x1 3x1

VKERS-020 VK-MD 15-36 VK-MD 15-22 Not available

VKERS-030 VK-MD 20-44 VK-MD 15-33 VK-MD 15-22

VKERS-040 VK-MD 24-50 VK-MD 24-54 VK-MD 20-27

VKERS-060 VK-MD 40-54 VK-MD 30-54 VK-MD 24-40

Consult factory for additional configuration options.

for VAV Systems

5

Vektor™ ERS Standard

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Construction Features

Cabinet Construction

A

• Coated steel exterior with stainless steel interior

• Double-wall construction with two-inch foam filled panels

• Stainless steel fasteners

• Bottom or side inlet locations

• Hinged access door with “tooled entry” handles

• Optional coil bypass design

Coil Construction

B

• Aluminum fins with copper tubing, corrosion-resistant
Heresite coated

• Stainless steel casing, corrosion-resistant Heresite coated

• Sized for maximum velocity of 500 ft/min

• Six row coils, eight fins per inch (standard)

• Rated in accordance with ARI 410-2001

• UL and ETL recognized

• Leak tested under water at 450 PSIG dry nitrogen

E

Filters

C

• Two-inch up to 35% disposable pleated filters, MERV 8

(0.24 inch wg pressure drop at 500 ft/min)

• Four-inch up to 65% disposable pleated filters, MERV 11

(0.40 inch wg pressure drop at 500 ft/min)

Fan Plenum Curb

D

• 12 gauge welded steel, coated with LabCoat™

• Insulated

• Minimum of 12 inches high

• Gasket provided for curb seal

• Designed to withstand 125 mph wind-load rating
without the use of guy wires

G

Vektor Sure-Aire™…another energy saving system from Greenheck

Continuously monitor critical laboratory fan exhaust
and building exhaust flow without airflow probes in the
exhaust airstream. Sure-Aire™ offers:

• Continuously measures critical fan and laboratory
exhaust flow

• Reports values to Building Automation System (BAS)

• No system effect or resistance to airflow

• No additional pressure loss

• No increase in fan RPM, sound or brake horsepower

• No additional energy cost for the building owner

• No probe corrosion to cause fan failure

Fan Flow Measurements

Output
to BAS

Bypass Airflow Measurements

G

6

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A

F

B

C

Fan Construction

E

• Efficient and quiet mixed flow impeller technology

• Bifurcated housing with motor, belt and bearings out of
the airstream

• Corrosion-resistant welded steel construction, coated
with LabCoat™

• Belt or direct drive

• Totally Enclosed Fan Cooled, Premium Efficient motors

Fan Plenum Construction

F

• Single or double wall construction

• Exterior steel walls coated with LabCoat™

• Interior walls available in stainless or coated steel
with LabCoat™

Damper Features

G

• Isolation damper completely accessible from
exterior of system

• Bypass damper(s) are sized to match system
requirements

• Corrosion-resistant polyester resin coated,
welded steel airfoil blade design

D

Coil Cabinet Curb

H

• 12 gauge corrosion-resistant welded steel, coated
with LabCoat™

• Insulated

H

• Minimum of 12 inches high

• Gasket provided for curb seal

• Designed to withstand 125 mph wind-load rating
without the use of guy wires

Vektor ERS Options and Accessories

Magnehelic Gauge

To measure air pressure
drop across the filters
indicating filter loading.

Vapor Tight Lights

Moisture- and corrosion­resistant construction with
no exposed parts. Energy­efficient, compact fluorescent
lamps.

7

Model Comparison and
Warranty Information

Family
of Lab
Exhaust
Systems

U.S. Patents:

7048499; 7320636

Mexico Patents:

243465, 258949

China (PR) Patent:

CN1294361C

Singapore Patents:

124106, 124135

Other Patents

Pending

Vektor-H Vektor-MD Vektor-CD

Housing Style Inline Centrifugal Inline Mixed Flow Single Width Centrifugal

Stack Style High Plume Nozzle High Plume Dilution Nozzle & Windband High Plume Dilution Nozzle & Windband

Minimum Flow 270 cfm (460 m³/hr) 1,500 cfm (2,550 m³/hr) 500 cfm (850 m³/hr)

Maximum Flow 24,000 cfm (40,800 m³/hr) 80,000 cfm (136,000 m³/hr) 140,000 cfm (238,000 m³/hr)

Maximum ESP Up to 3.5 in. wg (875 Pa) Up to 8 in. wg (2000 Pa) Up to 14 in. wg (3500 Pa)

UL for Electrical 705 Power

Ventilators (File no. E40001) and

Grease Removal 762 Power

Ventilators for Restaurant Exhaust

Appliances (File no. MH11745)

AMCA
Certification

Warranty 1 Year 3 Years 3 Years

Sound and Air Performance

AMCA 210 & 300

UL/cUL for Electrical 705 Power Ventilators

(File no. E40001)

Induced Flow Fan Air and

Sound Performance AMCA 210, 260, 300

U.S. Patent:

124105

Other Patents

Pending

UL/cUL for Electrical 705 Power Ventilators

Sound Performance AMCA 210, 260, 300

(File no. E40001)

Induced Flow Fan Air and

Our Warranty

Greenheck warrants this equipment to be free from defects in material and workmanship for a period

of one year from the shipment date. Any units or parts which prove defective during the warranty

period will be replaced at our option when returned to our factory, transportation prepaid. Motors are

warranted by the motor manufacturer for a period of one year. Should motors furnished by Greenheck

prove defective during this period, they should be returned to the nearest authorized motor service

station. Greenheck will not be responsible for any removal or installation costs.

As a result of our commitment to continuous improvement, Greenheck reserves the right to change

specifications without notice.

P.O. Box 410 • Schofield, WI 54476-0410 • Phone [phone] • greenheck.com

Copyright © 2010 Greenheck Fan Corp.

00.LAB.1009 R3 3-2010 RG

Prepared to Support

Green Building Efforts