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Energy Saving Fan Filter Units

SAM Microwatt 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 powder coat finish and include seismic clip suspension points.

The energy efficient 280 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..

Popular options include an 8 power cord (110 Volt only), 99.9995% eff. ULPA grade final filter, UL 900 Class 1 filters and duct collar adapters. Refer to the back of this section for more options and accessories.

Data & Specifications for SAM® MicroWatt

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 MicroWatt 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 650 CFM for a 2 x 4 unit and 250 to 350 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.

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Standard Equipment: Includes a 280 Low Watt motor, a prefilter and a solid state variable speed control with RFI Suppression. A safety switch is provided for all voltages as listed below.

Motor Data
Motor
Voltage
Hz
Watts
Running Amps
Start-Up Amps
280
SAM 24 H.O.
NCR
2' x 4'
115
N310
280
SAM 24 H.O.
NCR
2' x 4'
277
N310
280
SAM 24 H.O. CRF
Pharmaceutical-Style
2' x 4'
115
N310
(1) Running amps will be less on 50Hz
(2) Line voltage can affect actual start-up ampage
(3) Field tests show 115V units running at 1.0 amps or less
Replacement Filters
Mfg. Code
Description
302070
2 x 2 NCR Style HEPA Filter, 99.99% eff. @ 0.3 micron
302071
2 x 2 NCR Style ULPA Filter, 99.9995% eff. @ 0.12 micron
302013
2 x 3 NCR Style HEPA Filter, 99.99% eff. @ 0.3 micron
302015
2 x 3 NCR Style ULPA Filter, 99.9995% eff. @ 0.12 micron
302090
2 x 4 NCR Style HEPA Filter, 99.99% eff. @ 0.3 micron
302100
2 x 4 NCR Style ULPA Filter, 99.9995% eff. @ 0.12 micron
302190
Prefilter 20 x 20 x 1, 30% ASHRAE efficient, pleated type
Base Model (Ordering Information)
Mfg. Code
Model or Description
Style
Size
Voltage
Motor
Variable Speed Control
HEPA Filter
Weight
12103*
SAM 22 MW
NCR
2 x 2
115
280
703084
302070
53 lbs. (24.0 kg.)
12250*
SAM 22 MW
NCR
2 x 4
115
280
703084
302090
65 lbs. (25.9 kg.)
12251
SAM 22 MW
NCR
2 x 4
208-230
280
703912
302090
65 lbs. (25.9 kg.)
12252
SAM 22 MW
NCR
2 x 4
280
280
703915
302090
65 lbs. (25.9 kg.)