Fan/Filter Units (FFUs) and Power Distribution Modules

Fan/Filter Unit

UL listed and CE marked models available; inquire when ordering

WhisperFlow™ Fan/Filter Units (FFUs)

• Low-profile design allows cleanroom installation inside rooms with standard 9-foot ceilings
• Quiet, low-vibration design: only 50 dBA, measured 30" from filter face @ 90 FPM
• Provides an average airflow velocity of 90+ feet per minute (.45+ m/sec) and airflow of 640+ CFM under filter load at medium speed (2' x 4' model)
• Three-speed switch provides simplifies air balancing (see below for EnergySaver Remote Control System)
• Meets IEST Recommended Practices

These reliable, self-powered Fan/Filter Units provide a uniform flow of microfiltered air to meet cleanliness standards down to Class 10 (ISO 4).

All models use a 3-speed, centrifugal-type fan/motor with permanently lubricated bearings mounted inside a white powder-coated steel housing with drop-in prefilter (stainless steel available)

Advanced baffling technology ensures uniform airflow across the filter face and attenuates sound. Select HEPA (High-Efficiency Particulate Air) filters, rated 99.99% efficient at removing particle ≥ 0.3 microns, or ULPA (Ultra-Low Penetration Air) filters, rated 99.9995% efficient at removing particles ≥ 0.128 microns. Provides years of no-maintenance, 24/7 operation, depending on your air quality.

Power Distribution Modules

View Power Configuration
Dramatically simplifies connection of ceiling lights and fan/filter modules (FFUs) and allows operation from a single Control Panel (no. 6600-23, order separately). Each accommodates up to 5 lights and 5 FFUs and includes a step-down transformer for low-voltage control and operation status indicator circuits. Includes relays and circuit breakers for overload protection of all connected devices, AC contactors, and NEC-compliant quick-connect fittings for lights and FFUs. Price includes installation on specified Terra cleanroom. Each module must be wired to a dedicated 35A fused 120VAC or 30A fused 240VAC circuit.

Power Distribution Modules, for use with EnergySaver FFU Control System
This 20-amp version of the model above is configured to allow FFU operation by the EnergySaver Control System. EnergySaver controllers allow remote speed adjustment of up to four FFUs attached to each PDM unit.

Power Distribution Module, Single Point of Connection
View Power Configuration
Similar to the unit above, but includes NEC electrical enclosure mounted to the side of the cleanroom that provides easy access to serviceable components, including circuit breakers. Electrical panel allows multiple Power Distribution Modules and all other cleanroom electrical equipment to be hard-wired to a single dedicated power source, reducing reliance on an electrical contractor to complete cleanroom installation.

Eliminates surface charges generated by laminar flow for a cleaner cleanroom

IonBar™ Ionizing Bar with FFU Installation Kit

Cleaner Than Clean! Unique adapter (shown in yellow) draws air through carbon filters and/or UV sanitizing modules

Adapter Housing for Carbon Filtration and UV Sanitation

Carbon Filtration removes solvent and other chemical vapors to ensure a safe, clean process environment. The adapter module accommodates two 6"-thick charcoal cartridges, which typically provide 15 to 24 months of effective vapor filtration, depending on concentration.

UV Sanitizer kills most bacteria, viruses and molds to eliminate biological hazards inside the cleanroom. See efficacy data at TerraUniversal.com.
Select one adapter housing for each 2' x 4' FFU, and two charcoal cartridges and/or sterilization modules per adapter housing. Adapter must be ordered together with Terra WhisperFlow™ FFU

More sterilization solutions

EnergySaver Console

EnergySaver Filter-Fan Unit Control

• Variable speed FFU control reduces energy costs – pays for itself in less than two years!
• Simplifies cleanroom air balancing and cleanroom validation: lets you fine-tune air speed and flow volume room by room without breaching the cleanroom ceiling
• Night setback mode maintains cleanroom integrity at lower fan speeds to save energy and cut heat generation when room is unoccupied

This versatile control system includes a EnergySaver Module that controls power to all FFUs in a single Powder Distribution Module (see above), allowing you to ramp fan speed up and down to attain the precise air flow and velocity levels for your application. This variable control is ideal for incremental adjustments required in final cleanroom air balancing and validation, and it eliminates the need to breach the ceiling panels in order to adjust FFUs manually. It also allows compensation for clogging filters.

EnergySaver Console
Each operates up to 25 EnergySaver Controllers, handling up to 100 FFUs. Price includes programming of FFU zones.

EnergySaver Power Supply
One required/Console.

EnergySaver FFU Controller
One required for all FFUs in a single Power Distribution Module (see above).