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AAF

-HermanNelson

Classroom Unit Ventilators

-HermanNelson

Installation Manual

IM 725

Group:

Unit Ventilator

Part Number:

106506101

Date:

January 2002

Vertical Floor Models AVS, AVV, AVB, and AVR

Horizontal Ceiling Models AHF, AHB, AHV, and AHR

Before beginning installation, please read this publication in its entirety.

Develop a thorough understanding before starting the installation procedure.

This manual is to be used by the installer as a guide. Each installation is unique, only general topics are covered.

The order in which topics are covered may not be those required for the actual installation.

IMPORTANT!

Содержание HermanNelson IM 725

Страница 1: ...al Ceiling Models AHF AHB AHV and AHR Before beginning installation please read this publication in its entirety Develop a thorough understanding before starting the installation procedure This manual...

Страница 2: ...instructions plus the job specific AAF HermanNelson submittal drawings provided for specific dimensions unit arrangements controls and electrical details pipe stub up locations etc Pre Installation C...

Страница 3: ...Caulking Materials Bird Screen Sealed Cement Mortar Pitched Away from Unit Toward Louver 1 Minimum Vertical or Horizontal Blade Wall Intake Louver Recessed Without Flange Horizontal Blade Shown Lintel...

Страница 4: ...ge Without Grille Louver drain lip Grille Louver with weep hole Vertical Blade Louver Horizontal Blade Louver Flange Flange Outside Air Outside Air Outside Air Bird Screen On Side Toward Unit Vertical...

Страница 5: ...sing Arrangement AV or AL With Accessory Closed Pipe Tunnel Piping Floor Line Lintel By Others Intake Louver Not Less Than 3 Not More Than 28 Insulated Closure Plate Accessory Provide Drainage 1 25mm...

Страница 6: ...t required Lintel By Others Piping Floor Line Sealed Cement Mortar Pitch Away From Unit Important Gasket sealing surface is required see figure 13 14 on page 7 Seal under unit required Louver Lintel B...

Страница 7: ...ing the bottom uncaulked so that if moisture gets into the area between the louver and the unit it can drain to the outside unrestricted If the louver is supplied with flanges see figure 4 place an ad...

Страница 8: ...hod for fastening louver without flange inside wall opening Figure 18 Louver Details Dimensions As Directed By Architect 3 4 19mm Approx 7 178mm Cement Mortar Steel Interior Wall Grille Optional See N...

Страница 9: ...refusing to honor a damage claim The form required to file such a claim will be supplied by the carrier CONCEALED LOSS OR DAMAGE Concealed loss or damage means loss or damage which does not become app...

Страница 10: ...ting One Coil E LH Heating RH Cooling F RH Heating LH Cooling G RH Electric Heating LH Cooling R LH Single Coil S RH Single Coil 9 Controls 15 MicroTech w Unit Mounted Sensor 16 Part Load Variable Air...

Страница 11: ...8 203mm 8 203mm Knockout Opening Between Pipe Tunnel End Compartment Rear Entry Area or Draftstop Opening Knockouts 30 762mm 61 2 165mm 1 25mm 7 178mm 1 25mm 10 254mm 231 2 597mm Outdoor Air Intake O...

Страница 12: ...onstruction and the washers provided in the brown envelope with these instructions figure 25 Envelope also contains allen wrench to provide access to unit Push the unit ventilator tight to the wall st...

Страница 13: ...all water piping to coils properly can result in improper unit operation and possible coil freeze ups Proper ventilation is required for brazing When brazing be sure to protect unit ventilator compone...

Страница 14: ...turn R H Connections L H Connections R H Connections R H Connections 133 4 349 mm Table 4 Heating Only Coil Position Combinations In Air Stream one coil per position Note X indicates Available Face an...

Страница 15: ...D E F U 1 2 3 4 Figure 38 Chilled Water and Hot Water Unit Cooling Coils S W V 5 6 7 Heating Coils 65 66 67 Figure 39 Chilled Water and Steam Unit Cooling Coils S W V 5 6 7 Heating Coils 68 69 78 79 F...

Страница 16: ...g Cooling Coils V S W 5 6 7 Heating Coils 12 13 L H Connections A B S R J 115 8 295 mm 133 8 340 mm 155 8 397mm 137 8 352 mm R S E F J 137 8 352 mm 95 8 244 mm R S G E J Figure 50 Direct Expansion and...

Страница 17: ...1 4 32mm 31 4 83mm 23 8 61mm 33 16 81mm X X Y Z 311 16 94mm 29 16 66mm 3 4 19mm 3 4 19mm 7 8 22mm Figure 51 2 way EOC Valve Notes 1 See label furnished on 2 way valve to determine direction of flow th...

Страница 18: ...eturn Return Balancing and Shutoff Valve Shutoff Valve Supply Supply 2 way EOC Valve Unit Coil Unions A B Return Return Shutoff Valve Supply Unit Coil Union Shutoff Valve Supply 3 way EOC Valve Union...

Страница 19: ...eam connections may be same end as cooling coil connections but are recommended to be opposite end to facilitate piping When using AAF MicroTech controls they must be opposite end Figure 64 Same End C...

Страница 20: ...ection stub from the weight of the valve and to provide the installing contractor with maximum flexibility in making the field piping connections Refer to AAF HermanNelson factory instruction sheet sh...

Страница 21: ...n Unit End Compartment 14 13 13 4 6 7 8 15 9 14 4 6 7 15 9 15 15 14 13 4 6 7 8 15 11 Figure 72 Opposite End Drain Connection 78 79 Coils Left Hand Steam Supply and Right Hand Steam Return Shown Contro...

Страница 22: ...is required for brazing When brazing be sure to protect unit ventilator components from overheating damage melting insulation also damage to valves wiring electronics sensors etc During brazing bleed...

Страница 23: ...essures raised coil frosting reduced see figure 79 UVfansmustcontinuetorunforsettimeperiodduringunoccupied mode after satisfaction of the space sensor dissipates residual lowevaporatorcoilsurfacetempe...

Страница 24: ...d under design conditions 95 F outside air 80 F 67 F DB WB indoor air Refer to condensing unit manufacturer s guidelines Before adjusting refrigerant charge verify that the unit ventilator is operatin...

Страница 25: ...eriodicfilterchangeoutprogramshould beestablished Filtersareincludedinallunits AAF HermanNelson single usefiltersarestandardonallbutelectricheatunits whichcome withpermanentwiremeshfilters Permanentwi...

Страница 26: ...ded by AAF Thejunctionboxhas1 25mm and2 51mm knockouts located 10 1 2 267mm from right end of unit 3 Provide ground wire from grounding screw in switch junction box to switch ground terminal 4 Wire fi...

Страница 27: ...nted sensor is specified Room air is continuously drawn through the sampling chamber to insure fastaccurateresponsetotemperaturechangeswithintheroom 6 Time Clock Accessory This device automatically cy...

Страница 28: ...Right End 19 20 YEL 36 37 BRN Left End Compartment BLK WHT RED GRN ORG BLU PNK GRY First Unit ORG BLU PNK GRY Additional Unit ORG BLU PNK GRY Last Unit Attach Wires 2 Twisted Conductor Shielded Belde...

Страница 29: ...int adjustment Mounting Procedure For Standard Electrical Box 1 Feed the cable from the electrical box 2 Strip 1 4 of installation from the end of wires 3 Connect wires to appropriate colored leads Se...

Страница 30: ...end panel End Panel Figure 94 Install End Panels With Provided Hardware 1 End Panel Shown Fit Front Alignment Bar Into Welded Notches Permitting Alignment Of Storage Accessories With The Unit Ventilat...

Страница 31: ...DISCONNECT ALL ELECTRIC POWER IN CLUDING REMOTE DISCONNECTS BEFORE SERVICING FAILURE TO DISCONNECT POWER BEFORE SERVICING CAN CAUSE SEVERE PERSONAL INJURY OR DEATH CAUTION USE COPPER CONDUCTORS ONLY...

Страница 32: ...Digital Ready With Damper Actuators 3 10 K NTC Sensors 3 Terminal Strips 75 VA 24 volt Tfmr Wired w o UV Controller 23 Field Mounted Controls By Others 20 Part Load Variable Air MicroTech for Remote...

Страница 33: ...e 100 Arrangement AT Unit Mounted Plenum With Front Discharge Double Deflection Grille 41 2 114mm Max Recess 165 8 422mm 36 914mm 36 914mm Grille Finish Is Clear Anodized Aluminum Air Flow NOTE 1 For...

Страница 34: ...h other to en sure they are compatible with the specific installation 2 Duct collars shipped loose for field installation not by AAF HermanNelson 3 It is important also to verify there is sufficient c...

Страница 35: ...air ducts to handle 100 of the total cfm to accommodate economizer or morning warm up operation If a supply air duct with improper duct work is placed too close to the unit discharge it will result i...

Страница 36: ...ach or hang the ceiling off of the unit ventilator Flexible Boot 5 Feet Same Size As Unit Discharge Accoustically Lined Insulated Ductwork to Prevent Sweating Heat Loss or Heat Gain Unit Ventilator In...

Страница 37: ...ondensate piping from the drain trap must be sloped to facilitate properdrainage Theclearplastictrapshouldbeclampedandremovable for cleaning It may be necessary to manually fill the trap at system sta...

Страница 38: ...l Data Motor Data and Unit Amp Unit CFM L s ESP Motor Unit Current Series Nom in H2O PA HP Watts 115V 208V 230V 265V S07 750 354 0 0 0 2 0 50 1 4 164 1 8 1 0 0 9 0 8 H07 0 21 0 45 52 5 112 5 1 2 239 2...

Страница 39: ...reakers or other damages due to the inadequacy or interruption of electrical service 5 Controls supplied by others and improper operations hook up of such that impact unit operation or performance 6 D...

Страница 40: ...s previous catalogs bulletins with regard to AAF HermanNelson unit ventilator products Illustrations cover the general appearance of AAF HermanNelson unit ventilator products at the time of publicatio...

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