PennBarry DYNAMO Manual

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DYNAMO
General Purpose Centrifugal Fan
OPERATION & MAINTENANCE MANUAL
The information contained herein is, to the best of our knowledge, accurate
and applicable for proper operation and installation of the specied
equipment at the time this document entered service. Before proceeding, it
is recommended that you check for a more current version of this Installation
Operation Manual (IOM) on our website at www.pennbarry.com.
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.
IMPORTANT! Read before proceeding!

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TABLE OF CONTENTS
INTRODUCTION 3
INSTALLATION 4
START-UP AND OPERATION 5-6
MAINTENANCE 7
REPLACEMENT PARTS 8
ACCESSORIES AND DUCT ARRANGEMENTS 9
UNIPAK TYPICAL INSTALLATION 10-11
WIRING HARNESS – ECM 12-14
TROUBLESHOOTING CHECKLIST 15

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INTRODUCTION
Receiving and handling
PennBarry fans are carefully inspected before leaving the factory. When the unit is received, inspect the carton for any signs of
tampering. Inspect the unit for any damage that may have occurred during transit and check for loose, missing or damaged parts.
Mishandled units can void the warranty provisions. If units are damaged in transit, it is the responsibility of the receiver to make all
claims against the carrier. PennBarry is not responsible for damages incurred during shipment.
Avoid severe jarring and/or dropping. Handle units with care to prevent damage to components or nishes. If the unit is scratched
due to mishandling, the protective coating may be damaged. Incorrect lifting may damage the fan and void the warranty.
Storage
Long-term storage requires special attention. Store units on a level, solid surface, preferably indoors. If outside storage is necessary,
protect the units against moisture and dirt by encasing the cartons in plastic or in some similar weatherproof material. Periodically
inspect units and rotate wheels to spread bearing lubricant. Failure to rotate wheels results in reduced bearing life and may void the
manufacturer’s warranty. If the unit is a belt driven model and will be stored for an extended time, remove belts; belts which remain
under tension in a stationary position for extended periods are likely to have a reduced operating life.
Unpacking
Place the carton in an upright position and remove the staples or use a sharp (knife edge) tool to carefully cut or scribe the sealing
tape on both sides at the top of the carton. Open carton aps. Remove any cardboard and wooden ller pieces, as well as loose
components or accessories shipped with the unit.
Carefully remove the unit from the carton. Inspect the unit for any damage that may have occurred during transit and check for
loose, missing or damaged parts.

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INSTALLATION
For all units, determine the minimum safe oor or roof loading requirement for proper support, by multiplying the total weight of the
unit by two. Follow local codes and good practices to ensure proper anchoring of roof top units. A minimum of 12” clearance should
be provided for adequate heat dissipation. For these units, ex pads and other isolators are available to reduce the transmission of
vibration to the surrounding areas. See suggested ductwork installations and the dimensional information on page 9 and 11. Blowers
suitable for Restaurant Exhaust Appliances (YZHW) are accordingly labeled. These units require installation according to NFPA96
Standards, local codes and general practices. For curb mounting, to ensure a positive seal, apply a high temperature gasket material
on the roof curb.
Installing Dampers
When required, install dampers prior to mounting the unit on the curb or frame. Secure dampers to the inside of the curb without
undue twisting, which may distort the damper frame. Damper frame must be reasonably level on all sides. Check for free operation.
If dampers are motor operated type, ascertain that proper voltage is impressed on motor terminals.
Positioning and Running Power Lines
Power is normally brought from within the building and placed inside one corner of the curb. Feed power line through the clearance
hole provided in the damper and in turn through the electrical conduit hole provided in the base of the exhauster (fed through
rubber grommets on smaller units). If local codes require special electrical wire of unusually large size, then remove and discard the
electrical conduit (or grommets).
Installing the Fan
For access to motor and drive assembly, simply remove or lift access hood and make necessary power connections to motor
(through service switch if required). Provide a generous amount of slack in power line between motor and service switch to allow for
motor deections and to permit movement or motor for belt tension adjustments.
Anchoring or Securing the Unit
Whenever possible, anchor the fan by fastening through the vertical portion of the mounting ange. The type of fastener depends
upon curb construction, and using two fasteners per side constitutes adequate anchoring under normal conditions. If code or
specication prescribes fastening through the top (horizontal portion) of the mounting ange, use neoprene or lead washers under
the head of each fastener to prevent water leaks.
To complete the re-assembly of the unit, secure hood to frame by replacing all spacers, washers and nuts exactly as they were found
prior to removal. The unit is now ready for service.
Apply power and check rotation as indicated by arrow in motor compartment. The rotation of all centrifugal ventilators is
counterclockwise when viewing the unit from above the motor compartment.
Guy down large units installed in areas subject to high winds or unusual eld conditions.
CAUTION

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START-UP AND OPERATION
Carefully inspect the unit before start-up. All motor bearings should be properly lubricated (belt driven units only), and all fasteners
should be securely tightened. Rotate blower wheels by hand to ensure free movement. Make sure the inlets and approaches to the
exhauster are clean and free from obstruction. To ensure maximum air movement, adequate supply air must be available.
Rough shipping or handling may cause the wheel or propeller to move away from the venturi inlet. That condition can cause the fan
to move less air. If that occurs, loosen set screws and adjust the impeller closer to the inlet. Retighten all hardware securely.
Belt Tension Check-Up (Belt Driven Units Only)
Check condition of belts and the amount of tension prior to start-up. When it becomes necessary to adjust belt tension, do not
overtighten as bearing damage will occur. Recommended belt tension should permit deection of 1/64” per inch of span of the
belt on each side of the belt measured halfway between the pulley centerline. Exercise extreme care when adjusting belts as not to
misalign the pulleys. Any misalignment will cause a sharp reduction in belt life and produce squeaky, annoying noises (See gure 1).
On units equipped with two or three groove pulleys, adjust all belts with equal tension.
Before applying power to the motor, check the following:
1. Turn o and LOCK OUT the power source.
2. Check line voltage with motor nameplate.
3. On single phase motors, set-up the terminal blocks in accordance with the nameplate instructions (or wiring diagram). The set
up must match the line voltage.
4. If the motor is three phase, group and connect the winding leads as shown on the wiring diagram. The line voltage must
correspond with proper grouping of motor leads.
5. On two speed motors, follow the wiring diagram explicitly, or serious motor damage will occur.
6. For ECM direct driven motors, make sure that the integrated potentiometer is adjusted to its minimum set point by rotating it
counter clockwise until you reach its stop before starting fan.
7. Activate the blower and allow it to operate.
8. For ECM direct driven motors, slowly start adjusting the pot to the desired motor RPM.
9. Carefully check the rotation of the wheel to ensure operation in the proper direction.
Whenever belts are removed or installed, never force belts over pulleys without loosening motor rst to relieve belt tension.
CAUTION
Figure 1: Pulley Alignment

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10. Check that bearing temperatures are not excessively hot.
11. Check that all bolts and hangers are secure after one (1) hour of continuous operation.
Guard and Protect All Moving Parts
All motors are checked prior to shipment. However, if motor defects should develop, prompt service can be obtained from the
nearest authorized service station of the motor manufacturer under the warranty. Exchange, repair or replacement will be provided
on a no charge basis if the motor is defective within the warranty period. Do not return defective motors to PennBarry. Motor
guarantee is void unless overload protection is provided in motor wiring circuit.
NOTE: Take care to follow all local electrical, safety and building codes. Follow provisions of the National Electrical Code as well as the
Occupational Safety and Health Act.
Always disconnect power source before working on the unit.
CAUTION
START-UP AND OPERATION
Incorrect rotation overloads motor severely and results in serious motor damage. To change rotation of three phase units,
simply interchange any two of the three line leads. On single phase units, change the terminal block set-up following the
wiring diagram.
CAUTION

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Lubrication Schedule
Always follow the bearing manufacturer’s recommended lubrication schedule. If none is available, use the following general schedule:
1. Under average conditions where ambient temperatures do not exceed 120°F., lubrication is required 1 to 2 times a year.
2. In dirt laden atmospheres where there is a temperature range of 120°F to 150°F, lubrication is required from 3 to 6 times a year.
3. Under extreme temperature conditions and extremely dirty atmospheres, lubrication should be scheduled at least once or twice
a month.
4. Belt drive units maximum temperature should not exceed 160°F. Direct driven models have temperature range stamped on
motor.
Motor Lubrication
In general, standard motors are furnished with prelubricated, sealed-for-life ball bearings which require no lubrication for 7 to 10
years of normal service. Where motors have been ordered with greasable bearings, these bearings are factory lubricated and require
no attention for one year under normal conditions. If grease relief ttings are provided, remove them when performing maintenance
to allow grease to ow out. Whenever possible, apply grease while the motor is running. This practice should not supersede any
safety considerations. DO NOT OVERGREASE, as most lubricants deteriorate motor windings, thereby reducing motor life.
Use low pressure grease guns only. High pressure guns tend to blow out or unseat bearing seals, leaving the bearing open
to collect grime, dust and foreign particles.
CAUTION
MAINTENANCE
Do not attempt maintenance on fan until the electrical supply has been completely disconnected. If a service switch has not been
provided, remove all fuses from the circuit and lock the fuse panel so they cannot be accidentally replaced.
Lubrication is a primary maintenance responsibility. Check all bearings periodically. Inspect belts for tightness. If the fan is installed in
a corrosive or dirty atmosphere, periodically clean the centrifugal wheel, inlet, motor housing and other moving parts.
Fan Shaft Lubrication (Belt Drive models only)
Fan shaft bearing pillow blocks are furnished in either the prelubricated sealed-for-life type or the greasable type depending on
what was ordered. The prelubricated type requires no servicing for 7 to 10 years of normal use, and the greasable type are factory
greased eliminating the need for greasing initially. Follow the lubricating schedule recommended by the factory. This practice should
not supersede any safety considerations.
Recommended Lubricants
Manufacturer Product Temp. Range
BP LG-#P-1
Below 32°F (0°C)
Gulf Gulfcrown EP-1
Imperial Oil Unirex EP-1
Shell Alvania R-1
BP Energrease, MPMK11
32°F to 150°F (0°C to 66°C)
Gulf Gulfcrown EP-2
Imperial Oil Unirex EP-2
Shell Alvania R-3
Sun Oil Sun Prestige 42
Texaco Regal AFB2

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CENTRIFUGAL BLOWER CLASS 1, S.W.S.I.
DIRECT DRIVE CENTRIFUGAL BLOWER CLASS 1, S.W.S.I
REPLACEMENT PARTS
Replace parts with components which duplicate original parts correctly. Incorrectly sized shafts, belts, pulleys, etc. can damage the
fan.
Spare or replacement parts and prices are available upon request. Please supply the following information: Factory Order Number,
Customer’s Name and Order Number, and Date. If this information is not available, furnish a complete description of the part
required. Names of parts are shown on the following drawing. To order motors, provide the HP, RPM, voltage, phase, hertz and type
of enclosure.
Part Description
1 Blower Scroll Housing
2 Outlet Duct Flange (optional)
3Centrifugal Wheel (aluminum
non- overloading)
4 Spun Inlet
5 Ball Bearing Motor
6 Belt and Pulleys
7 Drive Frame Support Assembly
8 Adjustable Motor Mouthing Plate
9 Fan Shaft and Bearings
10 Support Legs with Mounting Holes
11 Belt and Bearing Enclosure (Optional)
12 Round Inlet Ring
Part Description
1 Blower Scroll Housing
2Centrifugal Wheel (aluminum
non- overloading)
3 Spun Inlet
4 EC Motor
5 Motor Mount
6 Drive Frame Support
7 Fan Shaft and Bearings
8 Weather Cover
9 Inlet Angle Flange
10 Angle Supports

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BLOWER ACCESSORIES
CORRECT INLET & OUTLET DUCT ARRANGEMENTS
INCORRECT INLET & OUTLET DUCT ARRANGEMENTS
ACCESSORIES AND DUCT ARRANGEMENTS
wheel diameter

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Hinged & latched access door
Positively sealed access door
(adjustable tension latches)
Continuously welded plenum
Exhaust termination plate (by others)
Vented curb (by others)
Ceiling
Grease drain
and downspout
Service
switch box
Roof
Vented weather cover
Discharge
From hood
UNIPAK TYPICAL INSTALLATION