Greenheck Fan 474118 User Manual
Part Number 474118
®
Energy Recovery 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.
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.
by
General Safety Information
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.
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.
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.
Vektor-ERS Energy Recovery Plenum Laboratory Exhaust
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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 will make notification on the delivery
receipt acknowledging any damage to the product.
All damage should be noted on all the copies of the
bill of lading which is countersigned by the delivering
carrier. A Carrier Inspection Report should be filled out
by the carrier upon arrival and the Traffic Department.
If damaged upon arrival, file claim with carrier. Any
physical damage to the unit after acceptance is not
the responsibility of Greenheck Fan Corporation.
Unpacking
Verify that all required parts and the correct quantity
of each item have been received, including accessory
kit containing flex connector, gasketing, etc. If any
items are missing, report shortages to your local
representative to arrange for obtaining missing
parts. Sometimes it is not possible that all items
for the unit be shipped together due to availability
of transportation and truck space. Confirmation of
shipment(s) must be limited to only items on the bill of
lading.
Handling
Fans are to be rigged and moved by the lifting
brackets provided or by the skid when a forklift is
used. Location of brackets varies by model and
size. Handle each piece in such a manner as to keep
from scratching or chipping the coating. Damaged
finish may reduce ability of fan to resist corrosion.
See coating repair section of this manual for details
involving touch-up of damaged surfaces.
Fans should never be lifted by the shaft, fan housing,
motor, belt guard, weatherhood, windband or other
accessories.
Storage
Fans are protected against damage during shipment. If
the unit cannot be installed and operated immediately,
precautions need to be taken to prevent deterioration
of the unit during storage. The user assumes
responsibility of the fan and accessories while in
storage. The manufacturer will not be responsible
for damage during storage. These suggestions are
provided solely as a convenience to the user.
INDOOR
The ideal environment for the storage of fans and
accessories is indoors, above grade, in a low humidity
atmosphere which is sealed to prevent the entry of
blowing dust, rain, or snow. Temperatures should
be evenly maintained between 30°F (-1°C) and
110°F (43°C) (wide temperature swings may cause
condensation and “sweating” of metal parts). All
accessories must be stored indoors in a clean, dry
atmosphere.
Vektor ERS-MD Energy Recovery Plenum Laboratory Exhaust
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Remove any accumulations of dirt, water, ice or snow
and wipe dry before moving to indoor storage. To
avoid “sweating” of metal parts allow cold parts to
reach room temperature. To dry parts and packages
use a portable electric heater to get rid of any
moisture build up. Leave coverings loose to permit air
circulation and to allow for periodic inspection.
The unit should be stored at least 3½ in. (89 mm) off
the floor on wooden blocks covered with moisture
proof paper or polyethylene sheathing. Aisles between
parts and along all walls should be provided to permit
air circulation and space for inspection.
OUTDOOR
Fans designed for outdoor applications may be stored
outdoors, if absolutely necessary. Roads or aisles for
portable cranes and hauling equipment are needed.
The fan should be placed on a level surface to prevent
water from leaking into the fan. The fan should be
elevated on an adequate number of wooden blocks so
that it is above water and snow levels and has enough
blocking to prevent it from settling into soft ground.
Locate parts far enough apart to permit air circulation,
sunlight, and space for periodic inspection. To
minimize water accumulation, place all fan parts on
blocking supports so that rain water will run off.
Do not cover parts with plastic film or tarps as these
cause condensation of moisture from the air passing
through heating and cooling cycles.
Fan wheels should be blocked to prevent spinning
caused by strong winds.
Inspection and Maintenance during
Storage
While in storage, inspect fans once per month. Keep a
record of inspection and maintenance performed; see
page 12.
If moisture or dirt accumulations are found on parts,
the source should be located and eliminated. At each
inspection, rotate the wheel by hand ten to fifteen
revolutions to distribute lubricant on motor and
bearings. If paint deterioration begins, consideration
should be given to touch-up or repainting. Fans with
special coatings may require special techniques for
touch-up or repair.
Machined parts coated with rust preventive should
be restored to good condition promptly if signs of
rust occur. Immediately remove the original rust
preventive coating with petroleum solvent and clean
with lint-free cloths. Polish any remaining rust from
surface with crocus cloth or fine emery paper and oil.
Do not destroy the continuity of the surfaces. Wipe
clean thoroughly with Tectyl® 506 (Ashland Inc.) or
the equivalent. For hard to reach internal surfaces or
for occasional use, consider using Tectyl® 511M Rust
Preventive or WD-40® or the equivalent.
Removing from Storage
As fans are removed from storage to be installed
in their final location, they should be protected and
maintained in a similar fashion, until the fan equipment
goes into operation.
Prior to assembly and installation of the Vektor fan
and system components, inspect the fan assembly to
make sure it is in working order.
1. Check all fasteners, set screws on the fan, wheel,
bearings, drive, motor base and accessories for
tightness.
2. Rotate the fan wheel(s) by hand and assure
no parts are rubbing. Access to the wheel is
obtained through a bolted panel located on the
side of the fan housing.
Table of Contents
Receiving, Handling, Storage ..................2
Unit Identification ...........................3
Installation
Plenum Cabinet ............................4
Unit Weights ..............................4
Plenum Service Clearances and Access ........5
Assembly and Installation
Roof Curb and Plenum Cabinet ............. 5-6
Duct Connections
Plenum Inlet ...............................7
Duct Connections ..........................7
Drain Trap ..................................8
Coils
Water Coil .............................. 8-9
Coil Checklist .............................9
Filter Replacement ..........................9
Coating Touch-Up Procedure ................10
Optional Accessories
Dirty Filter Sensor (Magnehelic Gauge) ........10
Vapor Tight Lights .........................10
Routine Maintenance
Coils ....................................11
Filters ...................................11
Drain Pan ................................11
Service
Coil Replacement .........................12
Reference
Maintenance Log .........................12
Warranty ................................12
Unit Identification
System Identification Tags
The tag shown is an example of an identification
label on the fan. The information provides general
details about the fan, as well as containing specific
information unique to the unit. When contacting
your Greenheck representative with future needs or
questions, please have the information on this label
available. Tags
are mounted in
an area which is
clearly visible,
usually on the
side of the fan
cabinet.
ERS and Vektor fan systems may arrive in component
pieces due to shipping restrictions. Individual
components of a system have matching identification
tags which should 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 and installing the ERS plenum
cabinet and Vektor fan bypass plenum components,
inspect plenums, coils, and fan assembly to make
sure they are in working order.
Storage
When an ERS plenum cabinet is not going to be
in service for an extended period of time, certain
procedures should be followed to keep the plenum
and coils in proper operating condition. Cover unit
with tarp to protect from dirt and moisture.
NOTE
Do not use a black tarp as this will promote
condensation.
ERS
Plenum
Cabinet
Fan Bypass
Air Plenum
(BAP)
Fan System Components
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Installation
Lifting Bracket
(removable after
installation)
ERS Plenum Housing
Roof Curb
ERS plenum cabinets and fan bypass air plenums
are to be rigged and moved by the lifting brackets
provided. Handle
in such a manner
as to keep from
scratching or
chipping the
coating. Damaged
finish may reduce
ability of cabinet
to resist corrosion.
See coating repair
section of this
manual for details
involving touchup of damaged
surfaces.
Fan Bypass
Air Plenum
Lift Points
Top view of
Bypass Air Plenum
Check local codes to ensure compliance for all
protective devices.
ERS plenum cabinet with coil section should be lifted/
hoisted by lifting brackets provided. These brackets
are located around the lower perimeter of the plenum
cabinet.
1. Before lifting, be sure that all shipping material
has been removed from unit.
2. To assist in determining rigging requirements,
weights are shown below.
3. Unit must be lifted by the lifting brackets
provided on base structure.
4. Rigger to use suitable mating hardware to attach
to unit lifting brackets.
5. Two spreader bars must span the unit to prevent
damage to the cabinet by the lift cables.
6. Always test-lift the unit to check for proper
balance and rigging before hoisting 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.
TOP VIEW
of
Service
Door
Service
Door
Service
Door
PLENUM SECTION
CAUTION
When installing an ERS plenum cabinet, ensure
the proper protective devices are used to protect
personnel from moving parts and other hazards.
Unit Weights (ERS Plenum Section Only)
Cabinet
Size
020
030
040
060
* Weights shown are for largest coil and filter
options per cabinet size. Based on dry
weight. Weights for custom designed units
may vary.
Cabinet
Height
075 3700
090 4500
075 4300
090 4900
075 5400
090 6100
075 6900
090 7800
110 8300
Weight
(lbs)*
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