ROUND DIFFUSERS G1. RM, RA Series Cone Diffusers. Introduction: RM, RA Series ROUND DIFFUSERS R M - R A S E R I E S

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1 OUND DIFFUSES G, A Series Cone Diffusers Introduction:, A Series Krueger s /A round ceiling diffusers provide excellent performance in variable air volume systems. The round ceiling diffusers have three or four cones depending on model selected to provide a uniform appearance regardless of design specifications. Krueger s round ceiling diffusers come in three styles. The first style, /, is used when vertical throw is not needed, but the consumer needs to adjust the room air induction. This is accomplished by utilizing the two position inner cones. At position one, capacity is maximized. In position two, room air induction is increased. The second style, 2/2/4/4, is used when horizontal and vertical discharge is required. This is accomplished by utilizing the three position inner cones. At position one, capacity is maximized and throw is horizontal. In position two, room air induction is increased and the throw remains horizontal. When set in position three, the air projects vertically from the diffuser. OUND DIFFUSES The third style, A2/A4, is used when horizontal and vertical discharge is required with infinite adjustability between horizontal and vertical. In the full open setting, capacity is maximized and throw is horizontal. In the full closed setting, air projects vertically from the diffuser. Krueger s round ceiling diffusers come with a safety cable to secure the inner cones after removal. (Safety cable is optional for 2 inlet size or smaller.) ODELS Steel, 3Cones, 2Position Adjustments Aluminum, 3Cones, 2Position Adjustments 2 Steel, 4Cones, 3Position Adjustments 2 Aluminum, 4Cones, 3Position Adjustments 4 Steel, 4Cones, 3Position Adjustments with Large Outer Antismudge Cone 4 Aluminum, 4Cones, 3Position Adjustments with Large Outer Antismudge Cone A2 A4 Steel, 4Cones, Fully Adjustable Steel, 4Cones, Fully Adjustable, with Large Outer Antismudge Cone FEATUES Horizontal only (/) air distribution. Horizontal/Vertical (2/2/4/4/A2/A4) air distribution. (Units ship in vertical position.) Designed for heating and cooling applications. 360 Discharge air pattern. Excellent performance in variable air volume systems. Designed for exposed duct or hard ceiling applications. Units ship with core set for vertical throw. 2 A4 A KUEGE 202 ACCESSOIES Optional Safety Cable (2 Inlets or Smaller) Optional ound Straightening Grid FINISHES Standard finish is #44 British White. Optional finishes available. Providing You With Air Distribution Solutions G3 S E I E S

2 G OUND DIFFUSES, ThreeCones, Dimensional Information,, COSS SECTION,, POSITIONS OUTSIDE DIAETE (C) CEILING OPENING DIAETE (B) DUCT INUS /32" () 3/4" (9) POSITION POSITION 2 OUND DIFFUSES D,, AVAILABLE NECK SIZES Nominal ound Duct Size Steel () Nominal ound Duct Size Aluminum () B C Position D Position 2 D 6" 6" 6 /2" (6) /8" (283) 3/4" (44) /8" (29) 8" 8" 8 /2" (26) 4 3/4" (37) 2 /8" (4) /2" (38) 0" 0" 0 /2" (267) 8 /4" (460) 2 7/8" (73) 2 /8" (4) 2" 2" 2 /2" (38) 22" (9) 3 /8" (79) 2 3/8" (60) 4" 4" 4 /2" (368) 26" (660) 3 3/8" (86) 2 /8" (67) 6" 6" 6 /2" (49) 29" (737) 4" (02) 3 /4" (83) 8" 8" 8 /2" (470) 32 /2" (826) 4 3/4" (2) 3 7/8" (98) 20" 20 /2" (20) 36" (94) 7/8" (49) 4 7/8" (24) 24" 24 /2" (622) 43 /4" (09) 7 3/4" (97) 6 /8" (68) 30" 30 /2" (77) 3 3/4" (36) 8 /8" (206) 6 /8" (68) 36" 36 /2" (927) 64 /2" (638) 0 /8" (27) 8 3/8" (23) NOTE: Dimensions in parentheses are mm., eference Charts AIFLOW VS. NC LEVEL:, (NO DAPE) 7000 Airflow (CF) Sound Level, NC Neck Size 36" 30" 24" 20" 8" 6" 4" 2" 0" 8" 6" KUEGE 202 G4 Excellence in Air Distribution

3 OUND DIFFUSES G, ThreeCones, eference Charts: Horizontal Throw DIFFUSE SPACING FO 80% ADPI:,, 6 NECK (NO DAPE) 2 20 /2 Unit Separation Distance 0 NC=37 CF ange OUND DIFFUSES CF/Sq.Ft. DIFFUSE SPACING FO 80% ADPI:,, 4 NECK (NO DAPE) /2 Unit Separation Distance NC=36 CF ange 0 KUEGE CF/Sq.Ft. NOTES: Charts are at 20 BTUH/ft 2 loads. See the Engineering section of this catalog for instructions on how to read these charts and additional ADPI information. Providing You With Air Distribution Solutions G

4 G OUND DIFFUSES, ThreeCones, Performance Data: Horizontal Throw OUND DIFFUSES IP/ETIC DATA:, (NO DAPE) IP Data etric Data Neck Air Position 2 Position Position 2 Pos Pos Neck Air Position 2 Position Position 2 Vel Flow Ps Pt Throw Throw 2 Vel Flow Ps Pt Throw Throw FP CF "WG "WG ft ft NC NC m/s L/s Pa Pa m m " Dia " Dia " Dia " Dia " Dia " Dia NOTES: Throw values are given for isothermal conditions and terminal velocities of 0, 00, and 0 FP (0.7, 0.0, and 0.2 m/s). NC values are based on octave band 2 7 sound power levels minus a room absorption of 0dB, re 0 2 Watts. Dash in space denotes a NC value of less than 0. Data was obtained from tests conducted in accordance with ANSI/ASHAE Standard 70, ISO Standard 29, and ISO Standard 374. See selection software for performance data not shown, including octave band data. G6 Excellence in Air Distribution KUEGE 202

5 OUND DIFFUSES G, ThreeCones, Performance Data: Horizontal Throw KUEGE 202 IP/ETIC DATA:, (NO DAPE) IP Data etric Data Neck Air Position 2 Position Position 2 Pos Pos Neck Air Position 2 Position Position 2 Vel Flow Ps Pt Throw Throw 2 Vel Flow Ps Pt Throw Throw FP CF "WG "WG ft ft NC NC m/s L/s Pa Pa m m " Dia " Dia. * " Dia. * " Dia. * " Dia. * NOTES: Throw values are given for isothermal conditions and terminal velocities of 0, 00, and 0 FP (0.7, 0.0, and 0.2 m/s). NC values are based on octave band 2 7 sound power levels minus a room absorption of 0dB, re 0 2 Watts. Dash in space denotes a NC value of less than 0. Data was obtained from tests conducted in accordance with ANSI/ASHAE Standard 70, ISO Standard 29, and ISO Standard 374. See selection software for performance data not shown, including octave band data. * Available in model only. Providing You With Air Distribution Solutions G7 OUND DIFFUSES

6 OUND DIFFUSES G, ThreeCones, Suggested Specification & Configuration. SEIES: (XXXX) 2Position ound, Steel Diffuser 2Position ound, Aluminum Diffuser 2. INLET: (XX) * 6 20 in 2 Increments, 24, 30, or DAPE: (XX) 00 NONE 03 P0 04 PD0 06 P2 08 PN00 4. ACCESSOIES: (X) ** 0 No Accessories C Safety Cable ound Straightening Grid. FINISH: (XX) 0 ill 0 Alumican 3 Black 44 British White * Largest inlet size available for is 8. ** Safety cable included on all units with 2 or greater neck size., The round ceiling diffuser shall be Krueger model (steel) or (aluminum). The and models shall be constructed of 3cones. The inner 2cone assembly shall be adjustable to provide 2 different horizontal discharge settings and be easily removable using a spring locking mechanism. The removable core shall be supported by a safety cable to provide ease of installation and maintenance for neck sizes 4 and larger. Diffusers shall be constructed of 8 gage steel () or 0.0 aluminum (). Optional round damper shall be constructed of heavy gage steel. Damper shall be operable from the face of the diffuser. PEFOANCE The manufacturer shall provide published (printed or electronic) performance data for the diffuser. Performance data shall include 2 7 octave band sound power levels. The diffuser shall be tested in accordance to the data standards at the time of product introduction or ANSI/ASHAE Standard 70. FINISH The paint finish shall be #44 British White and be an anodic acrylic paint, baked at 3 F for 30 minutes. The paint thickness shall be mils, gloss at 60 per AST D23 89 of 0 8%, pencil hardness per AST D336392A of HB H, crosshatch adhesion per AST D33983 of 4B B, impact per AST D of direct impact >00 in/lb and reverse impact >80 in/lb, salt spray per AST B79048 of 96 hours, humidity per AST D of >00 hours and water soak per AST D87092 of 20 hours. OUND DIFFUSES KUEGE 202 SAPLE CONFIGUATION: Providing You With Air Distribution Solutions G