Twin City Aero Acoustic Diffuser - ES-409 User Manual
Twin City Fans

Contents
Introduction.......................................................................... 1
Shipping............................................................................... 1
Handling............................................................................... 1
Storage................................................................................. 1
Parts.List............................................................................. 1
Aero.Acoustic.Diffuser™.Installation................................. 2
Aero.Acoustic.Diffuser™.Operation.Safety...................... 2
Operation.Checklist............................................................. 3
Maintenance......................................................................... 3
Troubleshooting.Guidelines................................................ 3
Limitation.of.Warranties.and.Claims................................ 3.
Introduction
The. purpose. of. this. manual. is. to. provide. instructions.
that.complement.good.general.practices.when.installing.
or. operating. Twin. City. Fan. &. Blower’s. Aero. Acoustic.
Diffuser™. originally. provided. on. the. E-Series. Plenum.
Fan.or.purchased.as.an.accessory.after.purchasing.the.
E-Series.plenum.fan.
. Instructions. given. in. the. body. of. this. manual. are.
general. in. nature,. but. apply. to. only. to. the. E-Series.
plenum.fan.manufactured.by.Twin.City.Fan.&.Blower.
Shipping and Receiving
All.Twin.City.Fan.&.Blower.products.are.carefully.con-
structed. and. inspected. before. shipment. to. insure. the.
highest.standards.of.quality.and.performance.
. Compare. all. the. components. with. the. bill. of. lading.
or.packing.list.to.verify.the.proper.unit.was.received.
. Check. each. unit. for. any. damage. that. may. have.
occurred. in. transit.. Any. damage. should. be. reported.
immediately. to. the. carrier. and. the. necessary. damage.
report.filed.
Handling
Handling. of. all. air. moving. equipment. should. be. con-
ducted.by.trained.personnel.and.be.consistent.with.safe.
handling.practices..Verify.the.lift.capacity.and.operating.
condition. of. handling. equipment.. Maintain. handling.
equipment.to.avoid.serious.personal.injury.
. Units.shipped.completely.assembled,.mounted.to.the.
fan,.require.minimal.handling..Use.only.designated.lifting.
lugs.on.fan.framework.for.handling.the.fan.
. Partial.or.disassembled.units.require.special.handling..
All. parts. should. be. handled. in. a. fashion. that. protects.
the.parts.from.damage..Components.should.be.handled.
such. that. forces. are. not. concentrated. and. bending. or.
distortion.cannot.occur.
. Aero. Acoustic. Diffusers™. should. be. lifted. using.
straps.or.padded.chains.if.necessary..Do.not.distort.the.
components. when. lifting.. Deformed. components. are. a.
source.of.interference.between.the.fan.impeller.and.the.
Aero.Acoustic.Diffuser™.resulting.in.excessive.noise.and.
possibly.fan.impeller.imbalance.
Storage
If. the. Aero. Acoustic. Diffuser™. installation. is. to. be.
delayed,. store. the. unit. in. an. indoor,. protected. area..
Protect.the.Aero.Acoustic.Diffuser™.from.moisture.and.
possible. incidental. contact.. A. temperature. controlled.
storage.facility.is.preferred.
Parts List
©2010.Twin.City.Fan.Companies,.Ltd.
Item
Qty
Part Name
Sketch
1
1
Backplate.
Diffuser
(Two.(2).
Halves)
2
1
Frontplate.
Diffuser
(Two.(2).
Halves)
3
4
Diffuser.
End.
Connector
4
8
Diffuser.
Mounting.
Brackets
5
48
1
/
4
"-20.
Self.Tap.
Screws
N/A
6
16
3
/
8
"-16.
Bolt.&.Nut
N/A
7
4
(Only.
re-
quired.
for.
Sizes.
300.to.
807)
Diffuser.
Side.
Connector
A
A
A
A
SECTION A-A
SECTION A-A
ES-409
June 2010
Aero Acoustic Diffuser
™
INSTALLATION, OPERATION & MAINTENANCE MANUAL