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2' x 4' aluminum fan filter unit with HEPA filter and energy-efficient, smart EC motor with network connection for cleanrooms | 6601-24-H-EC-CF displayed
Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan/Filter Units

Fan Filter Unit; Aluminum, 2'x4', HEPA, EC Motor, Constant Flow, Top Side Replaceable, 115 V

Warranty: 1 year parts, 90 days labor
  • Available Certified ISO Grade Designs: ISO 7, ISO 8
  • Constant airflow design dynamically adjusts for changes in static pressure, filter load, and other conditions to maintain set airflow
  • Electrically commutated (EC), high-efficiency motor regulates torque and speed to provide consistent air volume
  • EC motor shows high performance at low energy requirements at only 235 watts at average speed
  • Internal baffling plates and diffuser panel provide uniform air speed across the filter face, ensuring laminar airflow

• Type: Constant Flow

• Material: Aluminum

• Filter Replacement Access: Top Side

• Size: 2'x4'

• Filter Frame Material: Aluminum

• Filter Type: HEPA

• Filter: HEPA

• Motor Type: Electronically Commutated (EC)

• Airflow: Positive Pressure

• Speed Control: Universal Control Card

• Blower Type: Forward Curved

• Active Filter Face Area: 7.2 ft²

• FFU Control: Automatic

• Unit of Measure: EA

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Warranty: 1 year parts, 90 days labor
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6601-24-H-EC-CF
Terra Part # 6601-24-H-EC-CF
$1,924
Accessories related to Terra Part # 6601-24-H-EC-CF
85538
Fan Filter Unit; Aluminum, 2'x4', HEPA, EC Motor, Constant Flow, Top Side Replaceable, 115 V
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Product Details
  • Available Certified ISO Grade Designs: ISO 7, ISO 8
  • Constant airflow design dynamically adjusts for changes in static pressure, filter load, and other conditions to maintain set airflow
  • Electrically commutated (EC), high-efficiency motor regulates torque and speed to provide consistent air volume
  • EC motor shows high performance at low energy requirements at only 235 watts at average speed
  • Internal baffling plates and diffuser panel provide uniform air speed across the filter face, ensuring laminar airflow
  • Finger guard-protected inlet to protect users and the equipment
  • 1/4" ( 6 mm) -20 threaded holes in top corners accommodate eyebolts to facilitate installation using suspended guy wires (order eye bolt package separately)
  • Mill finished aluminum exterior
  • HEPA Filter: 99.99% efficient High-Efficiency Particulate Air, rated at particles 0.3µm diameter
  • Universal Control card, 3 modes available:
  •           Network mode – MODBUS RTU with RJ45 serial bus connection
  •           Analog model – 0 -10 VDC input
  •           Onboard Trim pot adjustment
  • Sound level is approximately 51 dBA, at average air flow velocity of 90 FPM (0.46 m/s)
  • Walkable plenum (excluding pre-filter) rated to 250 lbs.
  • Replacement filter (order separately)
  • Snap-in washable MERV 4 pre-filter
  • Because filters are delicate and subject to damage during handling, all filter sales are final; no failure claims can be accepted

• Type: Constant Flow

• Material: Aluminum

• Filter Replacement Access: Top Side

• Size: 2'x4'

• Filter Frame Material: Aluminum

• Filter Type: HEPA

• Filter: HEPA

• Motor Type: Electronically Commutated (EC)

• Airflow: Positive Pressure

• Speed Control: Universal Control Card

• Blower Type: Forward Curved

• Active Filter Face Area: 7.2 ft²

• FFU Control: Automatic

• Unit of Measure: EA

• Marks & Listings: UL, ULC

• Electrical Specifications: 115 V, 5 A, 250 W, 1 Ph, 60 Hz

• Weight, Product: 66 lb

• Dimensions, Product: 23.63" W x 47.63" D x 14.32" H

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Fan Filter Units

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
Terra Universal WhisperFlow® Filter Fan Units
Overview video of Terra Universal's comprehensive portfolio of filter fan units Terra Universal WhisperFlow® Filter Fan Units Overview video of Terra Universal's comprehensive portfolio of filter fan units

Features and Benefits

Protect Against Contaminants and Pathogens

HEPA and ULPA filters help capture many bacteria, viruses (COVID-19), and mold spores that contribute to a host of infections for both humans and plant/animal tissue cultures

Gel-Filled Channel on Room-Side Replaceable Filter

Gel-filled channel on room-side replaceable filter forms a tight seal against knife edge on fan housing, allowing fast, simple filter replacement from inside the cleanroom without the need for costly cleanroom shut-down.

Airflow Uniformity Improves Laminar Flow

Non-uniform air speeds produce turbulence that can recirculate particles into the air stream. Unique WhisperFlow® FFU baffling system and anodized diffuser plate promotes uniform laminar airflow to minimize turbulence and effectively carry away contaminating particles.

Full Range of Designs, Configurations!

WhisperFlow FFUs come in all styles: room-side replaceable, all-stainless steel, HEPA or ULPA filtration, EC energy-saving fans, reverse flow and more (shown: vapor filtration module with UV sanitation lamp).

Smart Fan Filter Unit with EC Motor

Smart WhisperFlow® Fan Filter Units are quiet, energy-efficient and easily adjustable, either manually or via automatic smart console, for centralized fan speed control and cleanroom pressure balancing.

Catalog of CE-Marked Products

Terra offers over 1,700 CE-marked products configured for international voltage requirements
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Fan Filter Unit Control System

    Fan Filter Unit Control System

    Provides room-by-room monitoring and control of Smart WhisperFlow FFUs to maintain target pressure differentials for ISO classification; temperature, humidity and particle monitoring and data logging, as well as dynamic fan set-point control, also available.
  • Night Service Swtich for Clean Room Fan Filter Units

    Night Service Saves Energy, Extends Filter Life!

    Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours; saves 25% of fan operating costs and extends filter life.
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    Filter Replacement Alarm

    The filter replacement alarm monitors filter backpressure and issues an alarm when filter needs replaced (requires selection of fan filter unit with challenge port, order separately).
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    Ionizing Bar; 22"L, with Installation Kit, for 24 x 24 Fan/Filter Unit

    Ionizing bar, mounted to Fan/Filter Unit, provides a balanced stream of ions to the work area below to neutralize static charge and prevent electro-static discharge; 22" bar shown installed on 2' x 2' FFU.
  • Fan Filter Unit Challenge Port

    Challenge Port; for Fan/Filter Unit

    Challenge port for Fan/Filter Units simplifies filter leak testing and connection of Filter Backpressure Alarm (shown mounted on SS FFU, order separately).
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    Power Distribution Modules for Cleanroom FFUs and Lights

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    Cord Adapter, MIN4 PL to 16AWG Power Cord for Terra Fan/Filter Unit

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