Equa 2 Chairs 1 Technical Specifications Equa 2 Chairs
Equa 2 Chairs 2 Table of Contents Performance Information 3 Methodology and Dimension Description 4 Equa 2 Seating Measurements 6 Equa 2 Chairs Size/Fit Reference 16 Work Chair 17 Stool 21 Side Chair, Sled Base 26 Lumbar Kit 28 Adjustable Arm Kit 29 Specifications are based on the latest information available at the time of publication. The right is reserved to make changes at any time without notice in finishes, materials, specifications, and models and to discontinue models and finishes. Dimensions shown are approximate and given in inches to the nearest sixteenth of an inch. For specific information about features and options available on each model, prices, and ordering information, please refer to the current Herman Miller price book. 2011 Herman Miller, Inc., Zeeland, Michigan L, Y, Equa, Equa 2, and Perspectives, are among the registered trademarks of Herman Miller, Inc. Hopsak 2 and Iota are among the trademarks of Herman Miller, Inc. Delrin is a registered trademark of DuPont.
Equa 2 Chairs 3 Performance Information Herman Miller, Inc., work chairs generally meet or exceed all American National Standards Institute/Business and Institutional Furniture Manufacturer s Association (ANSI/ BIFMA) performance requirements per ANSI/BIFMA X5.1-2011, which includes the following tests: Back strength test, Section 5 Back strength test, Section 6 Base load test, Section 7 Drop test, Section 8 Swivel test, Section 9 Tilt mechanism test, Section 10 Seating durability test, Section 11 Stability test, Section 12 Arm strength test (vertical), Section 13 Arm strength test (horizontal), Section 14 Back durability test (for tilting seats), Section 15 Back durability test (for nontilting seats), Section 16 Caster/chair base durability test, Section 17 Leg strength test (front application), Section 18 Footrest static load test (vertical), Section 19 Footrest durability test (vertical), Section 20 Arm durability test, Section 21 Outstop test for chairs with manually adjustable seat depth, Section 22 Equa2 work chairs generally meet or exceed the requirements of the previous ANSI/BIFMA performance requirements in ANSI/BIFMA X5.1-2002, which includes the following tests: Back strength test, Section 5 Back strength test, Section 6 Base load test, Section 7 Drop test, Section 8 Swivel test, Section 9 Tilt mechanism test, Section 10 Seating impact test, Section 11 Stability test, Section 12 Arm strength test (vertical), Section 13 Arm strength test (horizontal), Section 14 Back durability test (for tilting seats), Section 15 Back durability test (for nontilting seats), Section 16 Caster/chair base durability test, Section 17 Leg strength test (front application), Section 18 Footrest durability test (vertical), Section 19 Arm durability test, Section 20 Outstop test for chairs with manually adjustable seat depth, Section 21 In addition, products have been designed and tested to Herman Miller requirements, which are much more comprehensive and generally exceed the BIFMA requirements. Herman Miller s Quality Assurance Group randomly and periodically tests standard products (seating) to ensure ongoing compliance to ANSI/BIFMA and Herman Miller corporate standards.
Equa 2 Chairs 4 Methodology and Dimension Description The following measurements are taken with the BIFMA Chair Measurement Device (CMD) per the Universal Measurement Procedure. Seat height Distance between the floor and the compressed seat cushion where the user s thigh meets the seat. Seat depth Distance from the seat reference point (approximate rear of the seat cushion) to the front edge of the seat. Seat width Width of the chair seat at the spindle center (or at the geometric center if there is no spindle). Seat pan angle Seat angle in relation to the floor. A negative measurement indicates a forward sloping seat angle. Seat-to-back angle Angle between the seat back and the seat pan at centerline. Backrest height Distance from the seat cushion at centerline to the highest point of the chair back. Lumbar support Height of the lumbar support region as measured from the seat reference point (approximate rear of the seat cushion) to the center of the lumbar support. Seat back width Width of the seat back at the lumbar support region. Armpads, inside measurement Distance between the armpads.
Equa 2 Chairs 5 Methodology and Dimension Description The remaining measurements, displayed in the subsequent Seating Measurements charts, are taken in accordance with Herman Miller, Inc., test lab procedures. Armpads, outside measurement Overall distance from the outer edge of 1 armpad to the outer edge of the other armpad. Overall height Distance from the floor to the highest point of a chair back (unloaded). Seat-to-back-angle range Angle between the back and the seat from neutral to fully reclined. Back tilt range Angular movement of the back from forward or neutral to fully reclined in relation to the floor. Seat tilt range Angular movement of the seat from forward or neutral to fully reclined in relation to the floor. Armpad height Distance from the seat cushion at its geometric center to the top of an armpad. Outside base diameter Overall diameter of the base. Centerline base diameter Diameter of the base at the centerline of the casters or the glides.
Equa 2 Chairs 6 Seating Measurements Seat height and overall height shown with 2" casters Seat Height Seat Depth Seat Width Seat Pan Angle Seat-to-Back Angle Backrest Height Lumbar Support 1 Chair Description Work Chairs: Fully Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size A Adjustable Arms EN122AAF, EN123AAF 15.5 20.5" 15.75" 20.5" 7 90 17.5" 10" 19.5" Fixed Arms EN122PAF, EN123PAF 15.5 20.5" 15.75" 20.5" 7 90 17.5" 10" 19.5" No Arms EN122NAF, EN123NAF 15.5 20.5" 15.75" 20.5" 7 90 17.5" 10" 19.5" Work Chairs: Fully Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size B Adjustable Arms EN122ABF, EN123ABF 15.5 20.5" 16.75" 20.5" 7 90 20.5" 8.5" 19.5" Fixed Arms EN122PBF, EN123PBF 15.5 20.5" 16.75" 20.5" 7 90 20.5" 8.5" 19.5" No Arms EN122NBF, EN123NBF 15.5 20.5" 16.75" 20.5" 7 90 20.5" 8.5" 19.5" Work Chairs: Fully Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size C Adjustable Arms EN122ACF, EN123ACF 17.5 22.5" 17.75" 20.5" 5 90 23.5" 8.5" 19.5" Fixed Arms EN122PCF, EN123PCF 17.5 22.5" 17.75" 20.5" 5 90 23.5" 8.5" 19.5" No Arms EN122NCF, EN123NCF 17.5 22.5" 17.75" 20.5" 5 90 23.5" 8.5" 19.5" Back Width 1 Height to center of lumber support region
Equa 2 Chairs 7 Seating Measurements Seat height and overall height shown with 2" casters Armpads Overall Seat-to-Back- Tilt Range Armpad Base Diameter Inside/Outside 2 Height Angle Range 3 Back Seat Height Outside Centerline Work Chairs: Fully Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size A Weight (Pounds) 16.1 17.6"/ 23.25 24.85" 36.5" 90 + 99 115 7 23 7.5 11.5" 24.6" 23" 34 18.5"/25.5" 36.5" 90 + 99 115 7 23 9.1" 24.6" 23" 34 N/A 36.5" 90 + 99 115 7 23 N/A 24.6" 23" 33 Work Chairs: Fully Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size B 17.1 18.6"/ 25.35 26.85" 39.5" 90 + 99 115 7 23 7.5 11.5" 24.6" 23" 36 18.5"/25.5" 39.5" 90 + 99 115 7 23 9.1" 24.6" 23" 36 N/A 39.5" 90 + 99 115 7 23 N/A 24.6" 23" 35 Work Chairs: Fully Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size C 18.35 19.85"/ 26.6 28.1" 44.5" 90 + 96 112 5 21 7.5 11.5" 26.1" 24.4" 40 18.5"/25.5" 44.5" 90 + 96 112 5 21 9.1" 26.1" 24.4" 40 N/A 44.5" 90 + 96 112 5 21 N/A 26.1" 24.4" 39 2 Arms also pivot 25 3 Angle increases from 90 dependent on amount of shell flex
Equa 2 Chairs 8 Seating Measurements Seat height and overall height shown with 2" casters Seat Height Seat Depth Seat Width Seat Pan Angle Seat-to-Back Angle Backrest Height Lumbar Support 1 Chair Description Work Chairs: Split-Pad Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size A Adjustable Arms EN122AAS, EN123AAS 15.5 20.5" 15.75" 19.5" 7 90 17" 8 11" 18.7" Fixed Arms EN122PAS, EN123PAS 15.5 20.5" 15.75" 19.5" 7 90 17" 8 11" 18.7" No Arms EN122NAS, EN123NAS 15.5 20.5" 15.75" 19.5" 7 90 17" 8 11" 18.7" Work Chairs: Split-Pad Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size B Adjustable Arms EN122ABS, EN123ABS 15.5 20.5" 16.75" 19.5" 6 90 20" 9 12" 19" Fixed Arms EN122PBS, EN123PBS 15.5 20.5" 16.75" 19.5" 6 90 20" 9 12" 19" No Arms EN122NBS, EN123NBS 15.5 20.5" 16.75" 19.5" 6 90 20" 9 12" 19" Work Chairs: Split-Pad Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size C Adjustable Arms EN122ACS, EN123ACS 17.5 22.5" 17.75" 19.5" 5 90 23" 7 10" 19" Fixed Arms EN122PCS, EN123PCS 17.5 22.5" 17.75" 19.5" 5 90 23" 7 10" 19" No Arms EN122NCS, EN123NCS 17.5 22.5" 17.75" 19.5" 5 90 23" 7 10" 19" Back Width 1 Height to center of lumber support region with lumbar pad in lowest position and with lumbar pad in highest position
Equa 2 Chairs 9 Seating Measurements Seat height and overall height shown with 2" casters Armpads Overall Seat-to-Back- Tilt Range Armpad Base Diameter Inside/Outside 2 Height Angle Range 3 Back Seat Height Outside Centerline Work Chairs: Split-Pad Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size A Weight (Pounds) 16.1 17.6"/ 24.35 25.85" 36.5" 90 + 99 115 7 23 7.5 11.5" 24.6" 23" 33 18.5"/25.5" 36.5" 90 + 99 115 7 23 9.1" 24.6" 23" 33 N/A 36.5" 90 + 99 115 7 23 N/A 24.6" 23" 32 Work Chairs: Split-Pad Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size B 17.1 18.6"/ 25.35 26.85" 39.5" 90 + 99 114 6 22 7.5 11.5" 24.6" 23" 35 18.5"/25.5" 39.5" 90 + 99 114 6 22 9.1" 24.6" 23" 35 N/A 39.5" 90 + 99 114 6 22 N/A 24.6" 23" 34 Work Chairs: Split-Pad Upholstered, Knee Tilt and Knee Tilt with Lock, Pneumatic Seat Height Size C 18.35 19.85"/ 26.6 28.1" 44.5" 90 + 96 112 5 21 7.5 11.5" 26.1" 24.4" 38 18.5"/25.5" 44.5" 90 + 96 112 5 21 9.1" 26.1" 24.4" 38 N/A 44.5" 90 + 96 112 5 21 N/A 26.1" 24.4" 37 2 Arms also pivot 25 3 Angle increases from 90 dependent on amount of shell flex
Equa 2 Chairs 10 Seating Measurements Seat height and overall height shown with 2" casters Seat Height Seat Depth Seat Width Seat Pan Angle Seat-to-Back Angle Backrest Height Lumbar Support 1 Chair Description Low Stools: Fully Upholstered, Knee Tilt and Knee Tilt Swivel with Lock, Pneumatic Seat Height Size A Adjustable Arms EN712AAF, EN713AAF 20.5 26.5" 15.75" 20.5" 7 90 17.5" 10" 19.5" Fixed Arms EN712PAF, EN713PAF 20.5 26.5" 15.75" 20.5" 7 90 17.5" 10" 19.5" No Arms EN712NAF, EN713NAF 20.5 26.5" 15.75" 20.5" 7 90 17.5" 10" 19.5" High Stools: Fully Upholstered, Knee Tilt and Knee Tilt Swivel with Lock, Pneumatic Seat Height Size A Adjustable Arms EN722AAF, EN723AAF 27 33" 15.75" 20.5" 7 90 17.5" 10" 19.5" Fixed Arms EN722PAF, EN723PAF 27 33" 15.75" 20.5" 7 90 17.5" 10" 19.5" No Arms EN722NAF, EN723NAF 27 33" 15.75" 20.5" 7 90 17.5" 10" 19.5" Back Width 1 Height to center of lumber support region
Equa 2 Chairs 11 Seating Measurements Seat height and overall height shown with 2" casters Armpads Overall Seat-to-Back- Tilt Range Armpad Base Diameter Weight Inside/Outside 2 Height Angle Range 3 Back Seat Height Outside Centerline (Pounds) Low Stools: Fully Upholstered, Knee Tilt and Knee Tilt Swivel with Lock, Pneumatic Seat Height Size A 16.1 17.6"/ 24.35 25.85" 43" 90 + 99 115 7 23 7.5 11.5" 26.1" 24.4" 40 18.5"/25.5" 43" 90 + 99 115 7 23 9.1" 26.1" 24.4" 40 N/A 43" 90 + 99 115 7 23 N/A 26.1" 24.4" 39 High Stools: Fully Upholstered, Knee Tilt and Knee Tilt Swivel with Lock, Pneumatic Seat Height Size A 16.1 17.6"/ 24.35 25.85" 49" 90 + 99 115 7 23 7.5 11.5" 26.1" 24.4" 42 18.5"/25.5" 49" 90 + 99 115 7 23 9.1" 26.1" 24.4" 42 N/A 49" 90 + 99 115 7 23 N/A 26.1" 24.4" 41 2 Arms also pivot 25 3 Angle increases from 90 dependent on amount of shell flex
Equa 2 Chairs 12 Seating Measurements Seat height and overall height shown with 2" casters Seat Height Seat Depth Seat Width Seat Pan Angle Seat-to-Back Angle Backrest Height Lumbar Support 1 Chair Description Low Stools: Split-Pad Upholstered, Knee Tilt and Knee Tilt Swivel with Lock, Pneumatic Seat Height Size A Adjustable Arms EN712AAS, EN713AAS 20.5 26.5" 15.75" 19.5" 7 90 17" 8 11" 18.7" Fixed Arms EN712PAS, EN713PAS 20.5 26.5" 15.75" 19.5" 7 90 17" 8 11" 18.7" No Arms EN712NAS, EN713NAS 20.5 26.5" 15.75" 19.5" 7 90 17" 8 11" 18.7" High Stools: Split-Pad Upholstered, Knee Tilt and Knee Tilt Swivel with Lock, Pneumatic Seat Height Size A Adjustable Arms EN722AAS, EN723AAS 27 33" 15.75" 19.5" 7 90 17" 8 11" 18.7" Fixed Arms EN722PAS, EN723PAS 27 33" 15.75" 19.5" 7 90 17" 8 11" 18.7" No Arms EN722NAS, EN723NAS 27 33" 15.75" 19.5" 7 90 17" 8 11" 18.7" Back Width 1 Height to center of lumber support region with lumbar pad in lowest position and with lumbar pad in highest position
Equa 2 Chairs 13 Seating Measurements Seat height and overall height shown with 2" casters Armpads Overall Seat-to-Back- Tilt Range Armpad Base Diameter Weight Inside/Outside 2 Height Angle Range 3 Back Seat Height Outside Centerline (Pounds) Low Stools: Split-Pad Upholstered, Knee Tilt and Knee Tilt Swivel with Lock, Pneumatic Seat Height Size A 16.1 17.6"/ 24.35 25.85" 43" 90 + 99 115 7 23 7.5 11.5" 26.1" 24.4" 39 18.5"/25.5" 43" 90 + 99 115 7 23 9.1" 26.1" 24.4" 39 N/A 43" 90 + 99 115 7 23 N/A 26.1" 24.4" 38 High Stools: Split-Pad Upholstered, Knee Tilt and Knee Tilt Swivel with Lock, Pneumatic Seat Height Size A 16.1 17.6"/ 24.35 25.85" 49" 90 + 99 115 7 23 7.5 11.5" 26.1" 24.4" 41 18.5"/25.5" 49" 90 + 99 115 7 23 9.1" 26.1" 24.4" 41 N/A 49" 90 + 99 115 7 23 N/A 26.1" 24.4" 40 2 Arms also pivot 25 3 Angle increases from 90 dependent on amount of shell flex
Equa 2 Chairs 14 Seating Measurements Seat Height Seat Depth Seat Width Seat Pan Angle Seat-to-Back Angle Backrest Height Lumbar Support 1 Chair Description Side Chairs: Sled Base, Fully Upholstered Size A Fixed Arms EN500PAF 17.5" 15.75" 20.5" 7 90 17.5" 10" 19.5" No Arms EN500NAF 17.5" 15.75" 20.5" 7 90 17.5" 10" 19.5" Side Chairs: Sled Base, Fully Upholstered Size B Fixed Arms EN500PBF 17.5" 16.75" 20.5" 7 90 20.5" 8.5" 19.5" No Arms EN500NBF 17.5" 16.75" 20.5" 7 90 20.5" 8.5" 19.5" Side Chairs: Sled Base, Split-Pad Upholstered Size A Fixed Arms EN500PAS 17.5" 15.75" 19.5" 7 90 17" 9.5" 18.7" No Arms EN500NBS 17.5" 15.75" 19.5" 7 90 17" 9.5" 18.7" Side Chairs: Sled Base, Split-Pad Upholstered Size B Fixed Arms EN500PBS 17.5" 16.75" 19.5" 7 90 20" 10.5" 19" No Arms EN500NBS 17.5" 16.75" 19.5" 7 90 20" 10.5" 19" Back Width 1 Height to center of lumber support region
Equa 2 Chairs 15 Seating Measurements Armpads Inside/Outside 2 Overall Height Seat-to-Back- Angle Range 3 Side Chairs: Sled Base, Fully Upholstered Size A Armpad Height Base Diameter Outside Centerline Weight (Pounds) 18.5"/25.5" 34" 90 + 9.1" 21" x 22" N/A 26 34" 90 + N/A 21" x 22" N/A 25 Side Chairs: Sled Base, Fully Upholstered Size B 18.5"/25.5" 37" 90 + 9.1" 21" x 22" N/A 27 37" 90 + N/A 21" x 22" N/A 26 Side Chairs: Sled Base, Split-Pad Upholstered Size A 18.5"/25.5" 34" 90 + 9.1" 21" x 22" N/A 25 34" 90 + N/A 21" x 22" N/A 24 Side Chairs: Sled Base, Split-Pad Upholstered Size B 18.5"/25.5" 37" 90 + 9.1" 21" x 22" N/A 26 37" 90 + N/A 21" x 22" N/A 25 2 Angle increases from 90 dependent on amount of shell flex.
Equa 2 Chairs 16 Size/Fit Reference This reference helps people select A-, B-, or C-size chairs when the three sizes are not available for actual test sitting. Height and weight are key indicators of suitable chair-size choice. Since the B-size chair is designed to fit a broad range of people, Herman Miller recommends it for users who fall in the A/B or B/C category. To determine which chair size is best, find the point of intersection for your height and weight. 6'4" 6'3" 6'2" c 6'1" 6'0" 5'11" 5'10" 5'9" B or C 5'8" 5'7" 5'6" B 5'5" Height (Feet/Inches) 5'4" 5'3" 5'2" 5'1" 5'0" 4'11" 4'10" A B or A 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 Weight (Pounds) Equa 2 chairs are tested and warranted for use by persons 300 pounds and under.
Equa 2 Chairs 17 Work Chair Description EN122xxF (Pneumatic, Knee-Tilt, Fully Upholstered) EN123xxF (Pneumatic, Knee-Tilt with Lock, Fully Upholstered) EN122xxS (Pneumatic, Knee-Tilt, Split-Pad Upholstered) EN123xxS (Pneumatic, Knee-Tilt with Lock, Split-Pad Upholstered) Fire-Retardant Chairs EN122xxFFR (Pneumatic, Knee-Tilt, Fully Upholstered) EN123xxFFR (Pneumatic, Knee-Tilt with Lock, Fully Upholstered) EN122xxSFR (Pneumatic, Knee-Tilt, Split-Pad Upholstered) EN123xxSFR (Pneumatic, Knee-Tilt with Lock, Split-Pad Upholstered) This chair is available in 3 sizes and has a flexible, 1-piece shell with an H-shaped cutout, a seat and back with foam padding, a 5-star base, and a pneumatic seat-height adjustment. Tilt options include a knee tilt allows the chair to recline and pivot and a knee tilt with lock that secures the chair in an upright position. Arm choices include no arms, fixed arms, and adjustable arms that adjust 4 vertically with armpads that adjust 3/4 horizontals and pivot outward and inward over a 25º range. The split-pad upholstered chair has cushions that snap off for replacement. It also has an adjustable lumbar that vertically adjusts 3" for size A and 4" for sizes B and C; it expands up to 1" for additional lumbar support. Fire-retardant chair meets CAL 133 requirements; this chair is manufactured with cushions covered with a fire-barrier material and upholstered in approved fire-retardant fabrics. A, B, and C-size chairs are tested and warranted for use by persons 300 pounds and under. Construction Seat and Back The contoured, 1-piece seat and back shell on the fully upholstered and split-pad upholstered chairs shall be flexible, injection-molded, glass-reinforced nylon. The fully upholstered chair shall have a shell fully encapsulated by injection-molded, cold-cured polyurethane foam. The foam shall be a nominal 1 1/2" thick on the seat and the back and shall have waterfall edges. The foamed shell shall be fully upholstered and the fabric shall be bonded to the foam in contoured areas of the seat and the back. When upholstered with leather, the chair shall include a layer of polyester fiberfill batting between the foam cushion and the leather for added softness. When chairs are refurbished, the complete shell assembly can be replaced. (See Service Parts in Kiosk.) The split-pad upholstered chair shall have separate seat and back cushions of injectionmolded, cold-cured polyurethane foam over a polypropylene inner shell. The foam shall be a nominal 1 1/2" thick on the seat and back and shall have waterfall edges. The cushions shall be upholstered and the fabric or vinyl shall be bonded to the foam in contoured areas of the seat and the back. When upholstered with leather, the chair shall include a layer of polyester fiberfill batting between the foam cushion and the leather for added softness. The cushions, which shall be held in place with injection-molded polycarbonate fasteners spin welded to the outer shell, can snap on and off for replacement. (See Service Parts in Kiosk.) Fire-retardant (FR) work chairs shall have a fire-barrier material (interliner) covering the foamed shell.
Equa 2 Chairs 18 Work Chair Construction continued Lumbar Support (Optional on Split-Pad Upholstered Work Chairs) The adjustable lumbar support, located between the outer shell and the inner back shell, shall be an acrylonitrile butadiene styrene (ABS) carrier and a multichambered bladder assembly of polyurethane sheeting. A pressure diffuser of rigid plastic shall be housed within the bladder assembly to prevent accidental puncturing of the pressure chambers. An injection-molded urethane pump pad and a deflate button shall attach to the outer shell on the sitter s right side, adjacent to the back cushion. The lumbar support shall not be available on chairs with vinyl upholstery. See Adjustments for lumbar-support adjustments. Arms (Optional) The work chair shall be available with no arms, fixed arms, or adjustable arms. Arms can be added or removed on site. Chairs with no arms shall have a seat-mount filler to complete the connection. Chairs with arms shall have armpads that can be replaced on site. (See Service Parts in Kiosk.) Fixed arms shall have T-style armpad supports of die-cast aluminum, finished to match the base. They shall have a seat-to-arm height of 9". Fixed arms shall have 9" x 3 1/2" armpads; standard nonupholstered armpads shall be blow-molded, textured, low-durometer polyvinyl chloride (PVC) injected with polyurethane foam. An adjustable arm shall have a 2-piece, telescoping, T-style armpad support. The lower portion of the support shall be die-cast aluminum, finished to match the base. The upper portion of the support shall be injection-molded nylon. Adjustable arms shall have 9 3/4" x 4" armpads; standard nonupholstered armpads shall be injection-molded, textured, low-durometer PVC stretched over polyurethane foam pads. See Adjustments for adjustable-arm ranges. Chairs with arms shall be available with optional leather upholstered armpads of polyurethane foam upholstered to match the seat and back cushion. Armpads for fire-retardant (FR) chairs shall be available nonupholstered. Upholstery An upholstery cover shall be available in fabric-reinforced expanded vinyl (size A and size B split-pad upholstered chairs without lumbar support), fabric, and leather; see the current Herman Miller price book for a list. COM and Customer s Own Leather (COL) shall also be available; see the current Herman Miller price book for exact yardage requirements and additional information. Base On chairs with pneumatic seat-height adjustment, a self-lubricating Delrin hub shall be press fit into a base, and the inside diameter of the hub shall be machined to achieve a tight fit with a support tube. The support tube shall be a centerless ground, drawn-over mandrel to provide a higher-tolerance tube that telescopes into the hub. The support tube shall have a resin-bonded fluorocarbon coating. Pneumatic cylinders shall be replaceable on site. (See Service Parts in Kiosk.)
Equa 2 Chairs 19 Work Chair Construction continued Base The 5-star base shall be a steel weldment painted black with an ABS cover; or a scuff-resistant, bright polished aluminum finish. The chair shall swivel 360. Casters and glides can be replaced or interchanged on site. See the Casters and Glides section for more information. Adjustments Lumbar Support The optional lumbar support (on split-pad upholstered work chairs) shall be air inflatable to expand from flat to 1" toward the seated user. It shall have a height adjustment range of 3" on A-size chairs and 4" on B- and C-size chairs. To increase lumbar support, the pump pad shall be pushed in. To decrease lumbar support, the deflate button shall be pressed. The height adjustment shall be controlled by 2 hand grips of molded ABS located on the back side of the outer shell. Seat Height The seat-height range shall be from 15 1/2" to 20 1/2" for A- and B-size chairs and from 17 1/2" to 22 1/2" for C-size chairs. Pneumatically adjusted chairs shall be controlled by a lever of high-strength, low-alloy stamped steel, finished in electrodeposit paint (E-coat). The lever, which shall be located under the seat cushion on the sitter s right, shall have a polypropylene paddle. Knee Tilt (EN122 and EN123) This mechanism shall be body-weight controlled to tilt up to 16. See the Seating Measurements chart for additional information. A-, B-, and C-size chairs shall have different springs to deliver different performance characteristics. A-size springs shall have less resistance than B-size springs, and C-size springs shall have the most rigidity. The tilt s pivot point shall be 6 3/4" forward of the column, at center, to permit the chair to recline with minimal rise of the seat s front edge, allowing the user s feet to remain flat on the floor. The knee-tilt component housing shall be die-cast aluminum and shall rotate on a steel hex shaft. The knee-tilt mechanism shall be 2 steel springs, each 1 1/2" in diameter, with an adjustable tension control. It shall feature a dwell that provides additional stability in workintensive postures. The tilt tension shall be adjusted by a control knob located under the front of the seat. The knob shall be of soft, textured vinyl over a rigid nylon core. Knee Tilt with Lock (EN123) The tilt lock mechanism shall secure the chair in an upright position when the sitter rotates an adjustment lever. The lever, on the sitter s left side, shall be of injection-molded ABS. Adjustable Arms (Optional) The arm-height adjustment mechanism shall be a button-controlled, spring-loaded mechanism in a nylon housing. The adjustable arms shall adjust up to 4" in height, starting at 7 1/2" and adjusting to 11 1/2" above the seat. Users can adjust each armpad 3/4" in width by grasping the back end of the armpad and sliding it in or out. Users can also pivot each armpad a total of 25 by grasping the front end of the armpad and pivoting it outward or inward. The width and pivot adjustments shall be maintained by a mechanical detent.
Equa 2 Chairs 20 Work Chair Performance Data The chair shall be rated to support a maximum of 300 pounds. A fire-retardant (FR) chair meets CAL 133 and Boston Fire Code requirements. The 3 chair sizes size A, size B, and size C shall fit a broad range of people. See the Size and Fit Reference chart for chair-size recommendations based on the user s height and weight. The 3 chair sizes shall also have dimensional differences; see the Seating Measurements chart for chair dimensions.
Equa 2 Chairs 21 Stool Description EN712xxF (Low Stool, Knee-Tilt Swivel, Fully Upholstered) EN713xxF (Low Stool, Knee-Tilt Swivel with Lock, Fully Upholstered) EN722xxF (High Stool, Knee-Tilt Swivel, Fully Upholstered) EN723xxF (High Stool, Knee-Tilt Swivel with Lock, Fully Upholstered) EN712xxS (Low Stool, Knee-Tilt Swivel, Split-Pad Upholstered) EN713xxS (Low Stool, Knee-Tilt Swivel with Lock, Split-Pad Upholstered) EN722xxS (High Stool, Knee-Tilt Swivel, Split-Pad Upholstered) EN723xxS (High Stool, Knee-Tilt Swivel with Lock, Split-Pad Upholstered) Fire-Retardant Chairs EN712xxFFR (Low Stool, Knee-Tilt Swivel, Fully Upholstered) EN713xxFFR (Low Stool, Knee-Tilt Swivel with Lock, Fully Upholstered) EN722xxFFR (High Stool, Knee-Tilt Swivel, Fully Upholstered) EN723xxFFR (High Stool, Knee-Tilt Swivel with Lock, Fully Upholstered) EN712xxSFR (Low Stool, Knee-Tilt Swivel, Split-Pad Upholstered) EN713xxSFR (Low Stool, Knee-Tilt Swivel with Lock, Split-Pad Upholstered) EN722xxSFR(High Stool, Knee-Tilt Swivel, Split-Pad Upholstered) EN723xxSFR (High Stool, Knee-Tilt Swivel with Lock, Split-Pad Upholstered) This stool has a flexible, 1-piece shell with an H-shaped cutout and a seat and back with thick foam padding. It has a 5-star base, pneumatic seat-height adjustment, and an adjustable, chrome-plated steel footring. Available in size A only. Tilt options include a knee-tilt swivel that allows the stool to recline and pivot and a knee-tilt swivel with lock that allows the stool to be secured in an upright position. Arms options include no arms, fixed arms, and adjustable arms that adjust 4 vertically with armpads that adjust 3/4 horizontally and pivot outward and inward over a 25º range. The split-pad upholstered stool has cushions that snap off for replacement. It also has an adjustable lumbar that vertically adjusts 3" and expands up to 1" for additional lumbar support. Fire-retardant stool meets CAL 133 requirements; this stool is manufactured with cushions covered with a fire-barrier material and upholstered in approved fire-retardant fabrics. Stool is tested and warranted for use by persons 300 pounds and under. Construction Seat and Back The contoured, 1-piece seat and back shell on the fully upholstered and split-pad upholstered stools shall be flexible, injection-molded, glass-reinforced thermoplastic polyester. The shell on the fully upholstered stool shall be fully encapsulated by injection-molded, coldcured polyurethane foam. The foam shall be a nominal 1 1/2" thick on the seat and back and shall have waterfall edges. The foamed shell shall be fully upholstered and the fabric shall be bonded to the foam in contoured areas of the seat and the back. When upholstered with leather, the stool shall include a layer of polyester fiberfill batting between the foam cushion and the leather for added softness. When stools are refurbished, the complete shell assembly can be replaced. (See Service Parts in Kiosk.)
Equa 2 Chairs 22 Stool Construction continued The split-pad upholstered stool shall have separate seat and back cushions of injectionmolded, cold-cured polyurethane foam over a polypropylene inner shell. The foam shall be a nominal 1 1/2" thick on the seat and back and shall have waterfall edges. The cushions shall be upholstered and the fabric or vinyl shall be bonded to the foam in contoured areas of the seat and the back. When upholstered with leather, the stool shall include a layer of polyester fiberfill batting between the foam cushion and the leather for added softness. The cushions, which shall be held in place with injection-molded polycarbonate fasteners spin welded to the outer shell, can snap on and off for replacement. (See Service Parts in Kiosk.) The fire-retardant (FR) stools shall have a fire-barrier material (interliner) covering the foamed shell. Lumbar Support (Optional on Split-Pad Upholstered Stools) The adjustable lumbar support, located between the outer shell and the inner back shell, shall be an acrylonitrile butadiene styrene (ABS) carrier and a multichambered bladder assembly of polyurethane sheeting. A pressure diffuser of rigid plastic shall be housed within the bladder assembly to prevent accidental puncturing of the pressure chambers. An injection-molded urethane pump pad and a deflate button shall attach to the outer shell on the sitter s right side, adjacent to the back cushion. The lumbar support shall not be available on stools with vinyl upholstery. See Adjustments for lumbar-support adjustments. Arms (Optional) The stool shall be available with no arms, fixed arms, or adjustable arms. Arms can be added or removed on site. Stools with no arms shall have a seat-mount filler to complete the connection. Stools with arms shall have armpads that can be replaced on site. (See Service Parts in Kiosk.) Fixed arms shall have T-style armpad supports of die-cast aluminum, finished to match the base. They shall have a seat-to-arm height of 9". Fixed arms shall have 9" x 3 1/2" armpads; standard nonupholstered armpads shall be blow-molded, textured, low-durometer polyvinyl chloride (PVC) injected with polyurethane foam. An adjustable arm shall have a 2-piece, telescoping, T-style armpad support. The lower portion of the support shall be die-cast aluminum, finished to match the base. The upper portion of the support shall be injection-molded nylon. Adjustable arms shall have 9 3/4" x 4" armpads; standard nonupholstered armpads shall be injection-molded, textured, low-durometer PVC stretched over polyurethane foam pads. See Adjustments for adjustable arm ranges. Stools with arms shall be available with optional leather upholstered armpads of polyurethane foam upholstered to match the seat and the back cushions. Armpads for fire-retardant (FR) stools shall be available nonupholstered. Upholstery An upholstery cover shall be available in fabric-reinforced expanded vinyl (size A and size B split-pad upholstered stools without lumbar support), fabric, and leather; see the current Herman Miller price book for a listing. COM and Customer s Own Leather (COL) shall also be available; see the current Herman Miller price book for exact yardage requirements and additional information.
Equa 2 Chairs 23 Stool Construction continued Base A self-lubricating Delrin hub shall be press fit into a base column, and the inside diameter of the hub shall be machined to achieve a tight fit with a support tube. The support tube shall be a centerless ground, drawn-over mandrel, to provide a higher-tolerance tube that telescopes into the hub. The base column shall be knurled, pressed, and bonded into the base. A glassreinforced polymer shall be insert molded over the base column and shall be notched. The support tube shall have a resin-bonded fluorocarbon coating. A chrome-plated steel footring, 19" in diameter, shall be attached with screws to a die-cast aluminum footring support. The footring support shall be finished to match the base. A footring support detent shall ride in the notched track of the base column. See Adjustments for footring adjustments. Pneumatic cylinders shall be replaceable on site. (See Service Parts in Kiosk.) The 5-star base shall be die-cast aluminum with a wrinkle-coat powder-coat epoxy finish (graphite and mica); a nylon plastic overmold (black umber and medium tone); or a scuffresistant, bright polished aluminum finish. The chair shall swivel 360. Casters and glides can be replaced or interchanged on site. See the Casters and Glides section for more information.
Equa 2 Chairs 24 Stool Adjustments Lumbar Support The optional lumbar support (on split-pad upholstered stools) shall be air inflatable to expand from flat to 1" toward the seated user. It shall have a height adjustment range of 3" on A-size stools and 4" on B- and C-size stools. To increase lumbar support, the pump pad shall be pushed in. To decrease lumbar support, the deflate button shall be pressed. The height adjustment shall be controlled by 2 hand grips of molded ABS located on the back side of the outer shell. Seat Height The seat-height range shall be from 20 1/2" to 26 1/2" on low stools and from 27" to 33" on high stools. Stools shall have pneumatic seat-height adjustment. Adjustment shall be controlled by a lever of high-strength, low-alloy stamped steel finished in electrodeposit paint (E-coat). The lever, which shall be located under the seat cushion on the sitter s right, shall have a polypropylene paddle. Knee Tilt (EN712, EN713, EN722, and EN723) This mechanism shall be body-weight controlled to tilt from 7 to 23. The tilt s pivot point shall be 6 3/4" forward of the column at center to permit the chair to recline with minimal rise of the seat s front edge, allowing the user s feet to remain flat on the footring or on the floor. The knee-tilt component housing shall be die-cast aluminum and shall rotate on a steel hex shaft. The knee-tilt mechanism shall be 2 steel springs each 1 1/2" in diameter, with an adjustable tension control. It shall feature a dwell that provides additional stability in workintensive postures. The tilt tension shall be adjusted by a control knob located under the front of the seat. The knob shall be of soft, textured vinyl over a rigid nylon core. Knee Tilt with Lock (EN713 and EN723) The tilt lock mechanism shall secure the stool in an upright position when the sitter rotates an adjustment lever. The lever, on the sitter s left side, shall be injection-molded ABS. Footring The footring shall have 2 1/2" of adjustment for the low stool and 8" of adjustment for the high stool, in 5/8" increments. The user shall adjust the footring by lifting it and turning it counterclockwise. The ring shall lock when turned clockwise, and the positive-locking action of the notched track on the base column shall prevent slippage. Adjustable Arms (Optional) The arm-height adjustment mechanism shall consist of a button-controlled, spring-loaded mechanism in a nylon housing. The adjustable arms shall adjust up to 4" in height, starting at 7 1/2" and adjusting to 11 1/2" above the seat. Users can adjust each armpad 3/4" in width by grasping the back end of the armpad and sliding it in or out. Users can also pivot each armpad a total of 25 by grasping the front end of the armpad and pivoting it outward or inward. The width and pivot positions shall be held in place by a mechanical detent.
Equa 2 Chairs 25 Stool Performance Data The chairs shall be rated to support a maximum of 300 pounds. A fire-retardant (FR) stool meets CAL 133 requirements. Stools shall be available in size A only. See the Seating Measurements chart for stool dimensions.
Equa 2 Chairs 26 Side Chair, Sled Base Description EN500xxF (Fully Upholstered) EN500xxS (Split-Pad Upholstered) Fire-Retardant Chairs EN500xxFFR (Fully Upholstered) EN500xxSFR (Split-Pad Upholstered) This chair has a flexible, 1-piece shell with an H-shaped cutout, a seat and back with foam padding, and a sled base. Available in sizes A and B only. Arm options include no arms and fixed arms. The split-pad upholstered chair has cushions that snap off for replacement. Fire-retardant chair meets CAL 133 requirements; this chair is manufactured with cushions covered with a fire-barrier material and upholstered in approved fire-retardant fabrics. A, B, and C-size chairs are tested and warranted for use by persons 300 pounds and under. Construction Seat and Back The contoured, 1-piece seat and back shell on the fully upholstered and split-pad upholstered chairs shall be flexible, injection-molded, glass-reinforced thermoplastic polyester. The fully upholstered chair shall have a shell fully encapsulated by injection-molded, cold-cured polyurethane foam. The foam shall be a nominal 1 1/2" thick on the seat and the back and shall have waterfall edges. The foamed shell shall be fully upholstered and the fabrics shall be bonded to the foam in contoured areas of the seat and the back. When upholstered with leather, the chair shall include a layer of polyester fiberfill batting between the foam cushion and the leather for added softness. When chairs are refurbished, the complete shell assembly can be replaced. (See Service Parts in Kiosk.) The split-pad upholstered chair shall have separate seat and back cushions of injectionmolded, cold-cured polyurethane foam over a polypropylene inner shell. The foam shall be a nominal 1 1/2" thick on the seat and on the back and shall have waterfall edges. The cushions shall be upholstered and the fabric or vinyl shall be bonded to the foam in contoured areas of the seat and back. When upholstered in leather, the chair shall include a layer of polyester fiberfill batting between the foam cushion and leather for added softness. The cushions, which shall be held in place with injection-molded polycarbonate fasteners spin welded to the outer shell, can snap on and off for replacement. (See Service Parts in Kiosk.) Fire-retardant (FR) chairs shall have a fire-barrier material (interliner) covering the foamed shell. Arms (Optional) The side chair shall be available with no arms or with fixed arms. Arms can be added or removed on site. Chairs with no arms shall have a seat-mount filler to complete the connection. Chairs with arms shall have armpads that can be replaced on site. (See Service Parts in Kiosk.) Optional fixed arms shall have T-style armpad supports of die-cast aluminum, finished to match the base. They shall have a seat-to-arm height of 9". Fixed arms shall have 9" x -3 1/2"
Equa 2 Chairs 27 Side Chair, Sled Base Construction continued armpads; standard nonupholstered armpads shall be blow-molded, textured, low-durometer polyvinyl chloride (PVC) injected with polyurethane foam. Optional leather upholstered armpads shall be polyurethane foam upholstered to match the seat and back cushion. Armpads for fire-retardant (FR) chairs shall be available nonupholstered. Upholstery An upholstery cover shall be available in fabric-reinforced expanded vinyl (split-pad upholstered chairs), fabric, and leather; see the current Herman Miller price book for a list. COM and Customer s Own Leather (COL) shall also be available; see the current Herman Miller price book for exact yardage requirements and additional information. Base The sled base shall be steel tubing with a wrinkle-coat powder-coat epoxy finish (graphite and mica); a smooth, electrostatically applied, low-gloss, low-build epoxy finish (black umber and medium tone); or a scuff-resistant chrome-plated finish. The base shall provide a fixed seat angle of 7. Glides shall be available for sled-base chairs used on hard floors. Glides shall snap fit and shall be nylon. They shall attach at 5 prepierced locations on the bottom of the sled base and shall have antirotational guide pins. Glides can be replaced on site. See the Casters and Glides section for more information. Performance Data The chair shall be rated to support a maximum of 300 pounds. A fire-retardant (FR) chair meets CAL 133. Sled-base side chairs shall be available in size A and size B only. See the Seating Measurements chart for chair dimensions.
Accessories 28 Lumbar Kit Description EN90001 This adjustable lumbar kit can be added to an Equa 2 split-pad upholstered chair to further support the lower back. It expands 1" and includes a pump control. The lumbar kit vertically adjusts 3" for size A and 4" for sizes B and C. Finish is black. Construction The lumbar support shall consist of an acrylonitrile butadiene styrene (ABS) carrier and a multichambered bladder assembly of polyurethane sheeting. A pressure diffuser of rigid plastic shall be housed in the bladder assembly to prevent accidental puncturing of the pressure chambers. An injection-molded urethane pump pad and a deflate button shall attach to the outer shell on the right side, adjacent to the back cushion. The lumbar kit is not recommended for chairs with vinyl upholstery. Adjustments The lumbar support shall be air inflatable to expand from flat to 1" toward the seated user. It shall have a height adjustment range of 3" on A-size chairs and 4" on B- and C-size chairs. To increase lumbar support, the pump pad shall be pushed in. To decrease lumbar support, the deflate button shall be pressed. The height adjustment shall be controlled by 2 hand grips of molded ABS located on the back side of the outer shell.
Accessories 29 Adjustable Arm Kit Description EN900AN (Nonupholstered Armpads) EN900AF (Upholstered Armpads) Fire-Retardant Arms EN900ANFR (Nonupholstered Armpads) EN900AFFR (Upholstered Armpads) These arms can be retrofit to any Equa or Equa 2 chair. They adjust 4 vertically with armpads that adjust 3/4 horizontally and pivot outward and inward over a 25º range. Attachment hardware is included. Fire-retardant arms meet CAL 133 requirements. Construction Adjustable arms can be added or removed on site. An adjustable arm shall have a 2-piece, telescoping, T-style armpad support. The lower portion of the support shall be die-cast aluminum with finishes available to match the chair base. The upper portion of the support shall be injection-molded nylon. Adjustable arms shall have 9 3/4" x 4" armpads; standard nonupholstered armpads shall be injection-molded, textured, low-durometer polyvinyl chloride (PVC) stretched over polyurethane foam pads. See Adjustments for adjustable-arm ranges. Arms shall be available with optional upholstered armpads of polyurethane foam that can be upholstered to match a chair s seat and the back cushions (except for ColorGuard Vinyl and Customer s Own Material [COM] vinyl). Fire-retardant (FR) armpads chairs shall be available upholstered or nonupholstered. Adjustments The arm-height adjustment mechanism shall consist of a button-controlled, spring-loaded mechanism in a nylon housing. The arm-height adjustment range shall be 4", starting at 7 1/2" and adjusting to 11 1/2" above the chair s seat. Users can adjust each armpad 3/4" in width by grasping the back end of the armpad and sliding it in or out. Users can also pivot each armpad a total of 25 by grasping the front end of the armpad and pivoting it outward or inward. The width and pivot adjustments shall be maintained by a mechanical detent.
Equa 2 Chairs 30 Casters and Glides Descriptions Casters Size Type Materials Use (Diameter) BB 2 1/2" hard double wheels black nylon wheels and yoke carpet C7 2 1/2" double wheels black nylon wheels and hood, soft polyurethane tread hard floors or carpet C9 2 1/2" double wheels with internal brake black nylon wheels and hood, soft polyurethane tread hard floors or carpet Glides Size Materials Use GE 1 3/4" diameter; 2" height black nylon hard floors or carpet