Weil-McLain LGB-23 manual

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Table of contents for the manual

  • Page 1

    Part Number 550-141-916/1001 1[...]

  • Page 2

    Part Number 550-141-916/1001 2[...]

  • Page 3

    Part Number 550-141-916/1001 3[...]

  • Page 4

    4 LGB -6 to LGB -23 Series 2 – Control Supplement P art Number 550-141-916/1001 1 . Size gas piping considering — a. Diameter and length of gas supply piping. b. Number of fittings. c . Maximum gas consumption (including any possible future expansion). d. A llowable pr essur e dro p from gas met er outlet to boile r . F or p ress ure dr ops, se[...]

  • Page 5

    U ni ve rsal Control S ystem – N atural gas P art Number 550-141-916/1001 5 Sequence of operation 1 . Operating control begins start-up sequence. a. Limit control contacts are closed. 2 . Pilot-proving module energized. 1 . All wiring must be installed in accordance with the requirements of the National Electrical Code and any additional national[...]

  • Page 6

    6 LGB -6 to LGB -23 Series 2 – Control Supplement P art Number 550-141-916/1001 9. PILOT LEADWIRES ARE NOT FIELD REPLACEABLE. REPLACE PILOT ASSEMBLY IF NECESSARY. IF ORIGINAL GROUND LEADWIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, B. CANADA - C.S.A. C22.1 C.E.C. PART 1. A. U.S.A. - N.E.C. CLASS 1. 2. ALL WIRING EXTERNAL TO BOILER JACKET [...]

  • Page 7

    U ni ve rsal Control S ystem – N atural gas P art Number 550-141-916/1001 7 Figure 3 Wiring diagram Universal Control System Natural Gas LGB 6 thru 23 Intermittent Pilot Steam or Water 550-101-131/0798WM Michigan City, IN 46360-2388 A United Dominion Company 500 Blaine St. PART NUMBER Weil-McLain (WHEN USED) (NOTE 5) HIGH GAS PRESSURE SWITCH R H [...]

  • Page 8

    8 LGB -6 to LGB -23 Series 2 – Control Supplement P art Number 550-141-916/1001 Wiring Procedure 1. Determine right or left electrical supply wiring. 2 . Attach electrical junction box(es) to inside jacket end panel. Screws and nuts are provided. Fo r dual base boilers, use o ffs et nip ples (provided) to c onnect junction box es together , then [...]

  • Page 9

    U ni ve rsal Control S ystem – N atural gas P art Number 550-141-916/1001 9 IV Operating instructions[...]

  • Page 10

    10 LGB -6 to LGB -23 Series 2 – Control Supplement P art Number 550-141-916/1001 V V erification testing Before starting boiler for the first time and at least annually (during annual inspection and start-up), follow the procedures below to verify boiler controls are operating correctly and that automatic gas valve p roperly shuts off gas flow . [...]

  • Page 11

    U nive rsal Control S ystem – N atural gas P art Number 550-141-916/1001 11 Figure 5 P arts drawing VI 11 13 14 7 12 6 10 4 5 2 1 3 8 9 91601 P arts list – continued[...]

  • Page 12

    12 LGB -6 to LGB -23 Series 2 – Control Supplement P art Number 550-141-916/1001 W eil-McLain 500 Blaine Street Michigan City , IN 46360-2388 http://www .weil-mclain.com[...]