Envirco MAC 10 RFAC Fan Filter Unit

Introduction

ENVIRCO® developed the MAC 10® RFAC for applications requiring negative pressure reverse flow FFUs. The RFAC is designed to pull contaminated air from the intake side of the filter, filter the air, and then exhaust it outside of the area required. The most common negative pressure applications are for modular cleanrooms, cleanroom garmenting rooms, healthcare contamination control, cleanroom workstations, clean workbench enclosures, and associated air hoods.

The RFAC is a versatile FFU capable of being used in ceiling grids, installed inside equipment, or wall-mounted. Alternatively, the RFAC can be designed into an AC-powered mobile cart to function as a portable negative pressure FFU.

RFAC FFUs are available in Standard or RSR style configurations. To support increased HEPA filter life, RSR RFACs come standard with MERV 8 20”x20”x1” pleated roomside pre-filters. The 2x4 RSR RFAC has two pre-filters, and the 2x2 RSR RFAC has a single pre-filter. The pre-filter is intended to capture larger airborne particles and dust to filter them ahead of the more expensive HEPA filter media, which targets removal of much finer particulate matter. Pre-filters are accessible through a latching perforated door that swings open for easy roomside filter replacement.

The RFAC comes standard with an ON/OFF switch and a variable solid state speed control. Optionally, the RFAC can be equipped with an ENVIRCO TPC control card that enables support for serial MODBUS network control or external analog control input.

Standard Features

Mill-finished aluminum exterior is available in a 2’x2’ or 2’x4’ Standard or RSR (roomside replaceable) configuration
Reliable internal knife edge/gel seal gasket filter mounting (RSR model only)
Type J HEPA filter (99.99% collection efficiency @ 0.3 μm)
Supports more than 700 CFM airflow, higher than competitive models
5” x 14” output is redirectable to support any one of four directions
Protective face screen: expanded steel, powder coated white
Latching easy open/close pre-filter perforated door provides roomside access for replaceable low cost MERV 8 20”x20”x1” pre-filters (2x4 has two pre-filters, 2x2 has one pre-filter)
Aluminum filter diffuser screen on RSR filter
Highest quality, reliable, high efficiency motorized impeller assembly includes a PSC motor and backward-inclined impeller
ON/OFF switch and turn adjustable solid state speed control
Walkable plenum rated to 250 lbs. (excluding air output box)
Models available supporting: 115V or 277V
UL listed with standard UL 900 filter, file number E152685 (UL507)

Optional Features

ENVIRCO control card can support control from ENVIRCO controllers over a MODBUS RTU balanced serial network via RJ45
ENVIRCO control card can support remote analog control input (0-5VDC or 4-20mA)
Powder coat white paint or stainless steel FFU housing
Powder coat white paint or stainless steel pre-filter door
Alternatively available with Type F ULPA filter (99.999% collection efficiency @ 0.12 μm) or more durable PTFE (Teflon™ filters)