Fan Filter Unit, Smart® ECM, RSR, 2'x2', ULPA, 120/230 V, Stainless Steel, WhisperFlow, BioSafe®, Terra Universal (CAT#: STEM-C-0051-ZJF)

The Smart® WhisperFlow® Fan Filter Unit (EC Motor) 6601-22B-URSS-EC manufactured by Terra Universal provides a steady laminar flow stream of ULPA filtered air to the area below the mounted unit.
Please note that this unit is not full seam welded. If a leak test is required, full seam welded units leak-tested to meet ISO 14644-3 are optionally available.
The default configuration is 120V, but it can be easily configured to 230V.
Ultra-Low Particulate Air (ULPA) Filter: 99.999% efficient at 0.12µm particle diameter.
All-304 stainless steel BioSafe® frame and parts are easy to clean, hard and highly resistant to corrosion.
Electronically commutated (EC) brushless motor is equipped with internal microprocessor.
EC motor performs efficiently with noise levels as low as 40 dB.
Remote supervision and control can be achieved by integrating the units into Building Management Systems.
MODBUS® networking control card can support a variety of sensors like air pressure, air flow, and particle count sensors.
Motor control panel includes various indicators, speed adjustment, ports and switches.
Room-Side Replaceable (RSR) design and easy-open clips make it possible to replace the filter fast and convenient from inside the room without damaging the clean room, reducing maintenance time and cost.
Gel-sealed filter seats rest firmly against the blade on the fan housing.
Filter shipped uninstalled to prevent leakage caused by movement of the mounting gel.
FDA-approved silicone sealant has good sealing, high safety and durability.
Internal baffling plate and diffuser panel make the air flow quiet and even.
Threaded (1/4-20 UNC) inserts on corners make the unit easy to hang and mount.
MERV 7 pre-filter which is 30% ASHRAE rated helps to extend the service life of ULPA filter.
Low-profile design is compact and takes up less space, ideal for cleanrooms with limited ceiling space.
Removable yellow power cord with 4-pin connector guarantee the convenience and soundness of the unit's installation to cleanrooms.
Filters are leak tested in accordance with IEST standards and meet UL 900.

Type: Smart® ECM, RSR
Material: Stainless Steel
Filter Replacement Access: Room-Side
Size: 2'x2'
Filter Frame Material: 304 Stainless Steel
Filter: ULPA
Motor Type: Electronically Commutated (EC)
Motor HP: 1/3 hp
Airflow: Positive Pressure
Speed Control: Variable Speed Control Card
Blower Type: Forward Curved
Active Filter Face Area: 3.5 ft²
Pre-Filter: MERV 7
Unit of Measure: EA
Marks & Listings: CE, UL, ULC
Electrical Specifications: 120/230 V, 4.1 A, 1 Ph, 1 Ph
Weight, Product: 44 lb
Dimensions, Product: 23.63" W x 23.63" D x 15" H
Weight, Shipping: 64 lb
Dimensions, Shipping: 53" W x 53" D x 20" H
Package Type: Palletized
Warranty: 1 year parts, 90 days labor
Optional Accessories:
Challenge port kit
Power plug adapter
Stainless surface mount frame for installing FFU in ceiling without T-grid
12" ducted inlet connection adapter
Replacement filter
Filter replacement alarm
Eye bolt package
Ionizing bar
Pre-filter safety cover, for CE conformance
Control panel with night mode switch and power distribution modules

Diffuser Panel Promotes Air Flow Uniformity and Protects Filter Integrity: Unlike other manufacturers, Terra's FFUs use a unique perforated panel like a shower head beneath the filter, to protect the filter and make laminar air flow more uniform by preventing localized air swirling, particle build-up and turbulence.
Protect Against Contaminants and Pathogens: HEPA and ULPA filters help capture many bacteria, viruses (COVID-19), and mold spores.
Gel-Filled Channel on Room-Side Replaceable Filter: Gel-filled channel on room-side replaceable filter creates a closed passageway, so it allows the filter to be changed easily, safely and quickly during the operation of the fan filter unit.
Airflow Uniformity Improves Laminar Flow: Unique WhisperFlow® FFU baffling system and anodized diffuser plate minimize turbulence and effectively carry away contaminating particles by making laminar airflow more uniform.
Full Range of Designs, Configurations: WhisperFlow FFUs have various styles: room-side replaceable, all-stainless steel, HEPA or ULPA filtration, EC energy-saving fans, reverse flow and more.
Smart Fan Filter Unit with EC Motor: Smart WhisperFlow® Fan Filter Units provide low noise, high efficiency, and easy tuning. You can centrally control fan speed and cleanroom pressure balance either manually or through an automatic intelligent console.
Catalog of CE-Marked Products: Terra offers over 1,700 CE-marked products configured for international voltage requirements.

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