DUNGS AA-A1 - Pressure Switches for air, factory adjusted (US/CA)

[{"filename":"aa-a1_datasheet_us_226379.pdf","text":"Differential Pressure Switch\n for air, flue and exhaust gases\n\n AA-A1…\n\n\n\n\n Approvals\n\n UL Recognized\n • UL 353\n • File # MH 16628\n\n CSA Certified\n • CSA C22.2 No. 14\n • File # 201527\n\n FM Approved\n • Class 3510, 3530\n • File # J.I. 1T7A8.AF\n\n Commonwealth of Massachusetts\n Approved Product\n • Approval code G3-0106-191\n • Air pressure switch for differential,\n vacuum or pressure\n\n Codes and Standards\n This product is recommended for in-\n stallations covered by but not limited\n to NFPA 85, NFPA 86, UL 795, CSD-1,\n ANSI Z83.4, ANSI Z83.18, ANSI Description Application\n Z21.13, CSA B149.1, CSA B149.3 AA-A1… differential pressure switches Differential pressure monitoring in firing,\n and CSA B149.6. are compact pressure switches for au- ventilation and air-conditioning systems.\n tomatic burner controls. Available with The AA-A1… can be used as a pressure,\n DUNGS is an ISO 9001 hose connections. vacuum or differential pressure switch\n manufacturing facility. for air and non-aggressive gases. Not\n AA-A1… differential pressure switches suitable for natural gas, propane, butane\n are suitable for making and/or breaking and other combustable gases.\n a circuit when the medium pressure\n changes relative to the set point.\n\n\n\n\n AA-A1 Sales Brochure • P/N 226379 • Ed. 02/23\n\n\n\n\n1…4\n\fAA-A1… SPDT differential pressure switch in pressure and vacuum ranges.The differential pressure acts via the diaphragm\nagainst the force of the setting spring on the micro-switch. The pressure switch operates without any auxiliary power.\n\nSpecifications\nMax. operating pressure 1.5 PSI (103 mbar)\nPressure connection 0.16\" (4 mm) diameter hose connection\nTemperature range Ambient / Medium: UL, FM \t\t -40 °F to +150 °F (-40 °C to +66 °C)\n CSA \t\t -40 °F to +104 °F (-40 °C to +40 °C)\n Storrage: \t\t\t -40 °F to +150 °F (-40 °C to +66 °C)\nMaterials Housing:\t\t Polycarbonate\n Switch: \t\t\t Polycarbonate\n Diaphragm: \t\t NBR-based rubber\n Switching contact: Silver (Ag)\nElectrical ratings AC eff. min. 24 V max. 240 V\n DC min. 12 V max. 48 V\nNominal current ratings AC 5 A resistive @ 240 VAC\t\t\n AC 3 A inductive (pilot duty) @ 240 VAC\n DC min. 20 mA @ 24 VDC\n DC max. 1 A @ 24 - 48 VDC\nElectrical connection 1/4 x 1/32\" (6.3 x 0.8 mm) flat male terminals\nEnclosure rating Standard: No NEMA Type rating (no cover)\n IP 20 with 262045 protection\nSetting tolerance Tolerance as per specification\nInstallation position Any, as per specification. The setting point changes by approx. ±0.2 in. W.C. if the\n mounting position is different than the setting position\nDefinition of switching hysteresis ∆p AA-A1… switching function\nThe pressure difference between the upper and lower switching pressures. As pressure rises:\n 1 NC opens, 2 NO closes\n As pressure falls:\nPressure\n 1 NC closes, 2 NO opens\nat meter Setpoint tolerance\n Upper switching\n\n\n\n\n Switching hysteresis Δp\n pressure\n\n\n Falling\n\n\n Adjustment as\n Rising Lower switching\n pressure rises pressure\n Medium Pressure\n\n\n\n\n 2…4\n\f Dimensions inch (mm)\n 3.23 (82) 0.39\n 1.73 (44)\n □ 2.84 (72) (10)\n � 0.27 (6,9) 2.12 (53,75)\n\n\n\n\n 2.12 (53,75)\n � 0.79\n\n ø 0.18 (4,6)\n (20)\n\n\n\n\n �\n 0.34 (8,6) ø 0.17 (4,2) 1.76 (44,6)\n � �\n 0.64 (16,2)\n\n\n Height with cover: 1.73 (44 mm)\n � optional switching point lock cheese had screw ø 3 x 0.55 (14 mm)\n � optional sealing cap and connection p 3, ø 0.18 (4,6 mm)\n � Sealing face area for O-ring ø 0.19 (4,87 mm) x 0.07 (1,8 mm) to DIN 3371\n � Blind hole 8 x ø 0.15 (3,8 mm) deep\n � optionally Mounting of contact protection for cheese head screw ø 3 x 0.55 (14 mm)\n\n\n Pressure connection\n\n\n\n\n p1 p2 p3\n Connection p1 (+)\n = higher pressure + – +\n Connection p2 (-)\n = lower pressure\n\n Optional\n Connection p3 (+)\n = higher pressure\n\n\n\n\n3…4\n\f Differential Pressure Switch\n for air, flue and exhaust gases\n\n AA-A1…\n\n\n\n\nType Version Description Order No. Order No. Factory setting Switching\n (1 piece) (multi, 60 pieces) range in. W.C. hysteresis\n in. W.C.\nAA-A1-0-... AA-A1-0-2 No cover 277329 279935 0.16 - 1.20 ≤ 0.14\n\n AA-A1-0-3 No cover 277328 0.40 - 4.00 ≤ 0.20\n\n\nAccessories for pressure switch Order No.\n\n\nIP 20 Cover (1 pcs) 262045\n\n\n\n\nMounting plate (1 pcs) 230301\n\n\n\n\nScrew ø 3 x 14 (2 pcs) 266045\n\n\n\n\nKlima-Set (Duct mounting kit) 258247\n\n\n\n\n Ø 6 mm\nAdapter ø 4/6 (2 pcs) 266037\n\n Ø 6 mm\n Ø 4 mm\nWe reserve the right to make any changes in the interest of technical progress.\n\n\nKarl Dungs, Inc. Karl Dungs GmbH & Co. KG\n3890 Pheasant Ridge Drive NE P.O. Box 12 29\nSuite 150 D-73602 Schorndorf, Germany\nBlaine, MN 55449, U.S.A. Phone +49 7181-804-0\nPhone 763 582-1700 e-mail info@dungs.com\ne-mail info@karldungsusa.com Internet http://www.dungs.com\nInternet http://www.dungs.com/usa/ 4…4"}]