DUNGS AA-A4 - Pressure Switches for air, flue, exhaust gases (US/CA)

[{"filename":"aa-a4_manual_us_266559.pdf","text":"AA...A4\n Differential Air Pressure USA CDN\n Switch\n Installation Instructions\n\n\n Table of Contents\n Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . Page 1\n Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1\n Attention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1\n Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2\n Model Description & Part Number . . . . . . . . . . Page 2\n Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2\n Pressure Connection & Mounting AA...A4-4 . Page 3\n Installation Position . . . . . . . . . . . . . . . . . . . . . . Page 3\n Operation & Adjustment . . . . . . . . . . . . . . . . . . Page 4\n Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4\n Maintenance & Testing . . . . . . . . . . . . . . . . . . . Page 5\n Accessories & Replacement . . . . . . . . . . . . . . . Page 5\n\n\n\n\n Approvals\n FM Approved: Class 3510, 3530\n File # J.I.0D6A1.AF\n\n Commonwealth of Massachusetts Approved Product Approval code G3-0106-191\n\n\n\n\n Attention\n The installation and maintenance Check the ratings in the specifica-\n of this product must be done tions to verify that they are suit-\n under the supervision of an ex- able for your application.\n perienced and trained specialist.\n Never perform work if gas pres- [V] [A]\n sure or power is applied, or in [Hz] [VA]\n the presence of an open flame.\n\n\n Please read the instruction be- On completion of work on the\n fore installing or operating. Keep Safety pressure switch, perform a leak-\n the instruction in a safe place. You\n first age and function test.\n\n\n O.K.\n find the instruction also at www.\n dungs.com. If these instructions\n\n\n\n\n MC • Karl Dungs, Inc. • AA...A4 • Edition 2016.11 • P/N 266559\n are not heeded, the result may\n be personal injury or damage to\n property.\n Any adjustment and application- This product is intended for\n specific adjustment values must IFGC installations covered by, but not\n be made in accordance with CSA limited to, the following fuel gas\n the equipment manufacturers UL codes and standards: NFPA 54\n instructions. ANSI or IFGC (International Fuel Gas\n NFPA Code) or the following equipment\n codes and standards: NFPA 37,\n NFPA 85, NFPA 86, ANSI Z83.4/\n CSA 3.7, ANSI Z83.18/CSA 4.9,\n Explanation of symbols ANSI Z21.13, CSD-1 and UL 795.\n\n 1, 2, 3 ... = Action\n • = Instruction\n1…5\n\f Specification\n AA...A4 SPDT differential pressure switch in pressure and vacuum ranges. The differential pressure acts via the\n diaphragm against the force of the setting spring on the microswitch. The pressure switch operates \t\t\n without any auxiliary power.\n\n Max. Operating Pressure Ambient / Medium Temperature\n MOP = 7 PSI (500 mbar) °F -40 °F ... +150 °F\n +150\n (-40 °C … +66 °C)\n 0\n -40\n [PSI]\n\n Electrical Connection Air/Exhaust Gases\n Screw terminals via 1/2” NPT conduit Air and non-aggressive gases only.\n connection Not suitable for natural gas, pro-\n Air / Exhaust Gas\n pane, butane or other combustable\n [V] [A] gases.\n [Hz] [VA] Materials in contact with Air\n (Medium)\n Contact Rating Housing: Aluminum\n Ag 5 A resistive, Switching Housing: Polycarbonate\n 3 A inductive @ 120 VAC Switching contact: Silver (Ag)\n 1 A max. @ 12 - 48 VDC Diaphragm: NBR-based rubber\n\n [A]\n\n Enclosure Switch\n NEMA Type 4 SPDT\n\n SPDT\n Switch action\n Pressure, vacuum of differential\n pressure switch\n NEMA\n\n\n\n Model Description & Part Number\nType Version Description Order No. Setting range Switching Factory\n in. W.C. hysteresis Calibration\n in. W.C.\nAA-A4-6-… AA-A4-4-2 Threaded connection 267142 0.16 - 1.20 ≤ 0.12\npressure switch…