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8

Butterfly Damper

 for wider adjustment of airflow 

from roomside. This option includes a fixed 
distribution plate and swagged inlet. Dampers in 
the HVAC system are recommended.

Fixed Distribution Plate

 for applications where 

no adjustment of the airflow is required from the 
roomside and all are in the HVAC system.

Adjustable Distribution Plate

 for fine tuning 

the airflow from roomside. Dampers in the HVAC 
system are recommended.

Fig: 06 Dampers and Operation

Insulation Options

Insulation options are available to prevent heat loss, mitigate potential condensation, and/or provide 
sound attenuation. Determining the use of these options is the responsibility of the design engineer.

 The 2" foil-backed option is an aluminum foil-backed fiberglass (installed 6.0 R-value) attached to 
the housing using adhesive-mounted insulation anchors and caps.

Dampers and Damper Operation 

The AstroHood S-lll RSR Ducted HEPA Terminal Hood is supplied with Split Butterfly, Telescoping 
Disc, or no damper (i.e., fixed distribution disc).
The Split Butterfly and Telescoping disc dampers are adjustable from the room side via Phillips head 
screwdriver. Please note that a filter with centerboard and access port must be supplied to access 
the damper adjustment.

Summary of Contents for AstroHood S-lll RSR

Page 1: ...AstroHood S lII RSR AstroHood S lll RSR Ducted HEPA Terminal Hoods INSTALLATION OPERATION AND MAINTENANCE MANUAL...

Page 2: ...maFrame for Hard Gypsum Ceilings 05 Grille Installation and Removal 07 Filter Unpacking Installation Storage and Operation 07 08 Unpacking 07 Installation 07 Storage 07 Operating Conditions 07 Static...

Page 3: ...sks including but not limited to electrical and mechanical work equipment handling and safety procedures must be performed in accordance with industry accepted practice and all relevant local state an...

Page 4: ...e of spun aluminum and the inlet collar is ribbed to secure the flex duct retaining strap A 22 gauge 40 open area removable perforated grille protects the media pack Hanging holes 1 8 in diameter are...

Page 5: ...ealed to the grid using RTV Dow Corning 732 or GE 102 is recommended 1 Thoroughly clean the mating surfaces of the unit flange and ceiling grid to remove any debris or residue that may inhibit an adeq...

Page 6: ...osed corners guarantees a smooth cleanable surface White powder coat paint is supplied as standard finish The PermaFrame is ordered separately from the AstroHood unit Drawing Notes Construction 18 ga...

Page 7: ...ardboard liners Ducted filters will be single or double bagged and packed in reinforced cartons The filter should be handled with extreme care to avoid contact with the media and or face screen While...

Page 8: ...trolled Temperature Limits Maximum temperatures of 250 F 121 C intermittent and 100 F 38 C steady state Minimum temperature is 32 F 0 C Operating Conditions Temperature The maximum operating temperatu...

Page 9: ...event heat loss mitigate potential condensation and or provide sound attenuation Determining the use of these options is the responsibility of the design engineer The 2 foil backed option is an alumin...

Page 10: ...emoval and re installation of such product s or goods including but not limited to labor service costs and shipping charges The same obligations and conditions shall extend to replacement parts furnis...

Page 11: ...10 APPENDIX B MANUAL REVISION HISTORY Revision Version Revision Date Description of Change Approval...

Page 12: ...artow FL Columbia MO Fayetteville AR Hudson NY Momence IL Ontario CA Smithfield NC Tijuana Mexico Votorantim Brazil Washington NC Europe Cramlington UK Gasny France Vitoria Spain Ecoparc France Trenci...

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