CleanRooms InternationalCleanRooms International

SAM® MicroSound

SAM MicroSound Fan Filter Units include a 99.99% efficient HEPA filter, 30% ASHRAE pleated type prefilter, seismic clip suspension points, safety switch which disables the unit while servicing, and solid state variable speed control with RFI suppression, allowing the airflow to be fine tuned.

Housings are fabricated from steel with a white powdercoat finish and include seismic clip suspension points.

The energy efficient N310 motor blower is a low watt backward curved impeller,  single phase, permanent split capacitor type motor blower assembly with thermal overload protection. Units are available in 115 Volt (60 Hz), 208-230 Volt (50/60 Hz) and 277 Volt (60 Hz).

Final filters are protected with a white epoxy diamond pattern grille and are tested according to accepted procedures as described by the Institute of Environmental Sciences (IEST) and/or ISO standards. The standard HEPA filter is 99.99% eff. and an ULPA grade 99.9995% eff. filter is available as an option.

Other popular options include an 8’ power cord (115 Volt only), 99.9995% eff. ULPA grade final filter, UL 900 filters and duct collar adapters. Refer to the back of this section for more options and accessories.

For horizontal flow applications consult with one of our cleanroom experts in your area, or call the factory for more information.

SAM is a registered trademark owned by Clean Rooms International


NCR Style Filter Data: The HEPA Filters are designed for 90 FPM average face velocity @ initial 0.47 w.g. and have a rated efficiency of 99.99% @ 0.3 micron or larger. An anodized aluminum frame holds the 53mm media which is protected by a diamond pattern white epoxy coated steel grille.

Final filters can be replaced by removing unit from ceiling, placing on a bench, removing and replacing the filter and re-installing unit in ceiling.

Low Profile: All SAM MicroSound NCR Style Models are
12-5/8” high.

Standard Ceiling Size: All 2’ x 4’ models are designed to fit a nominal 2’ x 4’ ceiling grid with a 22.5” x 46.5” standard opening.

Air Flow: Airflow ranges from 400 to 750 CFM for a 2 x 4 unit and 250 to 400 CFM for a 2 x 2 unit. At 90 FPM, CFM is nominal 632 on a 2 x 4 and 300 on a 2 x 2 unit respectively. Airflow for units running at 50 Hz will be about 20% less.

Sound Level: At average face velocity of 90 FPM measured 30” from face of filter, sound level is approximately 54 dba with less than 45 dba ambient sound level. Field conditions, voltage and method of testing could produce different results.

Motor Data
MotorVoltageHzWattsRunning AmpsStart-Up Amps
N310115601851.64.1
N310208-23050/601650.8-0.7(1)1.5(2)
N310277601650.61.5
  1. Running amps will be less on 50Hz
  2. Line voltage can affect actual start-up amperage
Replacement Filters
Mfg. CodeDescription
3020702×2 NCR Style HEPA Filter, 99.99% eff. @ 0.3 micron
3020712×2 NCR Style ULPA Filter, 99.9995% eff. @ 0.12 micron
3020132×3 NCR Style HEPA Filter, 99.99% eff. @0.3 micron
3020152×3 NCR Style ULPA Filter, 99.9995% eff. @ 0.12 micron
3020902×4 NCR Style HEPA Filter, 99.99% eff. @ 0.3 micron
3021002×4 NCR Style ULPA Filter, 99.9995% eff. @ 0.12 micron
302190Prefilter 20″x20″x1″, 30% ASHRAE efficient, pleated type
Base Model
(Ordering Information)
Mfg. CodeModel or DescriptionStyleSizeVoltageMotorVariable Speed ControlHEPA FilterWeight
12100*SAM22 MS NCRNCR2 x 2115N31070308430207053 lbs. (24.0 kg.)
12101SAM22 MS NCRNCR2 x 2208-230N31070391230207053 lbs. (24.0 kg.)
12102*SAM22 MS NCRNCR2 x 2277N31070391530207053 lbs. (24.0 kg.)
12150*SAM23 MS NCRNCR2 x 3115N31070308430201357 lbs. (25.9 kg.)
12151SAM23 MS NCRNCR2 x 3208-230N31070391230201357 lbs. (25.9 kg.)
12152*SAM23 MS NCRNCR2 x 3277N31070391530201357 lbs. (25.9 kg.)
12261*SAM24 MS NCRNCR2 x 4115N31070308430209060 lbs. (27.2 kg.)
12262SAM24 MS NCRNCR2 x 4208-230N31070391230209060 lbs. (27.2 kg.)
12263*SAM24 MS NCRNCR2 x 4277N31070391530209060 lbs. (27.2 kg.)

* UL Listed
Prefilter and Safety Switch are Standard on all Models

Popular Options: (Please choose from the following part numbers when ordering options)
Final Filters:Air Conditioning Mixing Box:
302071  2 x 2 NCR ULPA Filter 99.9995% eff.19958  Slanted Top with 10” Duct Collar
302015  2 x 3 NCR ULPA Filter 99.9995% eff.19959  Slanted Top with 12” Duct Collar
302100  2 x 4 NCR ULPA Filter 99.9995% eff. 19947  Square with (2) 10” Duct Collars
308001  2 x 2 NCR HEPA UL 90019948  Square with (2) 12” Duct Collars
308002  2 x 4 NCR HEPA UL 900Pilot Light:
308005  2 x 4 NCR ULPA UL 90019700  NCR Style Red Pilot Light- (w/36″ lead for grid or ceiling mount (Light Indicates Power to Motor)
308007  2 x 2 NCR ULPA UL 90019701  NCR Style Red Pilot Light w/Pressure Switch- (w/36″ lead for grid or ceiling mount (Light Indicates Power to Motor and Air Flow)
302072  2 x 2 NCR HEPA with Centerboard and Test PortRadial Diffuser Grille:
302094  2 x 4 NCR HEPA with Centerboard and Test Port19300  2 x 2 Radial Diffuser Grille
Prefilters: 19301  2 x 4 Radial Diffuser Grille
302197  Extended Life Prefilter 20″ x 20″ x 2″ Miscellaneous:
Duct Collar Adapters:703902  8’ Power Cord 110-120V Only
19950  10” Duct Collar Adapter 603322  Gasket on Downstream Edge of Unit
19951  12” Duct Collar Adapter Magnehelic Gage: Refer to the Back of this Section
19952  Side Load with 10” Duct Collar
19953  Side Load with 12” Duct Collar
19955  10” Top Load Duct Collar Adapter
19956  12” Top Load Duct Collar Adapter

NOTE: Duct collar adapters #19950 & #19951 may be used without negating the UL listing. All other duct collars, air conditioning boxes, pilot lights, and adding other electrical components negates UL listing.

[Click here to download a PDF of this content.]