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Vektor-ERS Energy Recovery Plenum Laboratory Exhaust

Installation, Operation and Maintenance Manual

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the 
product described. Protect yourself and others by observing all safety information. Failure to comply with instructions 
could result in personal injury and/or property damage! Retain instructions for future reference.

®

Part Number 474118

Energy Recovery Laboratory Exhaust 

Vektor ERS-MD

Greenheck model VKERS is a pre-engineered energy 
recovery system designed to connect directly to a 
Vektor-MD high plume dilution blower with bypass air 
plenum. This installation manual covers procedures 
for receiving, installing and maintaining the energy 
recovery coil section. 
For additional instruction and maintenance 
information on the Vektor-MD high plume dilution 
blowers, visit www.greenheck.com and download the 
VK-MD instruction manual, part number 464652.

Only qualified personnel should install this fan system. 
Personnel should have a clear understanding of these 
instructions and should be aware of general safety 
precautions. Improper installation can result in electric 
shock, possible injury due to coming in contact with 
moving parts, as well as other potential hazards. 
Other considerations may be required if high winds 
or seismic activity are present. If more information 
is needed, contact a licensed professional engineer 
before moving forward.

1.  Follow all local electrical and safety codes, as well 

as the National Electrical Code (NEC), the National 
Fire Protection Agency (NFPA), where applicable. 
Follow the Canadian Electric Code (CEC) in 
Canada.

2.  The rotation of the wheel is critical. It must be free 

to rotate without striking or rubbing any stationary 
objects.

3.  Motor must be securely and adequately grounded.
4.  Do not spin fan wheel faster than maximum 

cataloged fan rpm.  Adjustments to fan speed 
significantly effects motor load. If the fan RPM is 
changed, the motor current should be checked to 
make sure it is not exceeding the motor nameplate 
amps.

5.  Do not allow the power cable to kink or come in 

contact with oil, grease, hot surfaces or chemicals. 
Replace cord immediately if damaged.

6.  Verify that the power source is compatible with the 

equipment.

7.  Never open access doors to a duct while the fan is 

running.

General Safety Information

DANGER

Always disconnect power before working on or near 
a fan. Lock and tag the disconnect switch or breaker 
to prevent accidental power up.

CAUTION

When servicing the fan, motor may be hot enough 
to cause pain or injury. Allow motor to cool before 
servicing.

CAUTION

Precaution should be taken in explosive 
atmospheres.

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Summary of Contents for ERS-MD

Page 1: ...oving parts as well as other potential hazards Other considerations may be required if high winds or seismic activity are present If more information is needed contact a licensed professional engineer before moving forward 1 Follow all local electrical and safety codes as well as the National Electrical Code NEC the National Fire Protection Agency NFPA where applicable Follow the Canadian Electric...

Page 2: ...For hard to reach internal surfaces or for occasional use consider using Tectyl 511M Rust Preventive or WD 40 or the equivalent Receiving Upon receiving the product check to make sure all items are accounted for by referencing the bill of lading to ensure all items were received Inspect each crate for shipping damage before accepting delivery Notify the carrier if any damage is noticed The carrier...

Page 3: ...d be used to identify and assemble the complete system Assembling systems with different identification tags can cause reductions in the fan s performance General Information To ensure a successful installation the instructions in this manual should be read and adhered to Failure to comply with proper installation procedures may void the warranty Pre Installation Checks Prior to fully assembling a...

Page 4: ...g to desired location 7 Never lift units in windy conditions 8 Preparation of curb and roof openings should be completed prior to lifting unit to the roof Verify the curb has the gasket seal on the top surface 9 Do not use fork lifts for handling unit Cabinet Size Cabinet Height Weight lbs 020 075 3700 090 4500 030 075 4300 090 4900 040 075 5400 090 6100 060 075 6900 090 7800 110 8300 Weights show...

Page 5: ...5 DRAIN LIFT LUG QTY 8 S S ISOLATION DAMPER Coil Coil Optional External Piping by others Service Doors Internal Pipe Chase Side or Bottom Intake Opening Lift Bracket Optional Internal Piping by others under Vektor fans Bypass Weatherhood s Vektor bypass air plenum optional mounting locations shown Filters Coil Coil Coil Service Doors Coil Service Clearance Coil Service Clearance Clearance Clearanc...

Page 6: ...the hardware kit attach the unit sections by bolting together frame extrusion from the inside Tighten the bolt washer assemblies to the top and both sides of the joining sections Start on the lower sides and work towards the top As the bolts are tightened the plenum sections will draw together Use anti seize gel to prevent galling welding of all stainless steel fasteners If necessary pull the unit...

Page 7: ...Contractor Installed Ductwork Energy Recovery Cabinet Energy Recovery Cabinet Roof Deck Curb Curb Roof Deck RECOMMENDED DUCT INSTALLATION FOR VEKTOR ENERGY RECOVERY VERTICAL INLETS NOTE ALL DUCT WORK AND HARDWARE SUPPLIED BY OTHERS CAULK AND OR GASKETING MATERIAL SHOULD BE USED TO SEAL DUCT TO VEKTOR ERS CABINET Contractor Installed Ductwork Contr actor Installed Ductwork Duct Connections Installa...

Page 8: ...ses steel toe boots and gloves are recommended during the installation and maintenance of the coil All field piping must be self supporting System piping should be flexible enough to allow for the thermal expansion and contraction of the coil Water Coil Installation Recommendations 1 Piping should be in accordance with accepted industry standards Always use a back up wrench on the coil connections...

Page 9: ... are located only in the coil plenum section Access is needed from both sides of the plenum to change all the filters Unit may have either 2 inch MERV 8 filters or 4 inch MERV 11 filters depending on the application requirements Use equivalent MERV rating filters when replacing Change the filters regularly Pressure drop readings can be used to determine when a filter should be replaced Prefilters ...

Page 10: ...es the pressure across the filter section Periodic inspection is necessary to determine whether filters need to be replaced Vapor Tight Lights Vapor tight lights provide light to each of the compartments in the energy recovery plenum The lights are wired to a junction box mounted on the outside of the unit The switch requires a separate power source to allow for power to the lights when the unit m...

Page 11: ...en working with coils Fin Straightening Coil fins may have been bent during shipping or servicing and should be straightened to maintain maximum heat transfer Reduction of the effective coil surface will correspondingly reduce coil capacity Always check fin appearance after any handling of the coil and after any servicing is done near the coils Fin combs are sized according to number of fins per i...

Page 12: ...over of Part 474118 Service Coil Change Out Procedure Coils can only be pulled out through the side of the plenum cabinet Side panels which are nearest to the coil can be removed if the coil needs to be replaced Size 020 ERS plenums only have a single coil and do not require coil removal clearances on both sides If necessary both coils can be removed through the same side of the plenum housing Thi...

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