Instruction/ maintenance manual of the product WMBC-1A Weil-McLain
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P art Number 550-141-807/0298 LGB Gas–fir ed boiler Contents Flame Guardian WMBC -1A RM7895C Controller Electronic Pilot System IRI Control Supplement I . Installation ..................... 2 II . Gas piping ...................... 5 III. Wiring ....
P art Number 550-141-807/0298 2 LGB (Series 2) — Control Supplement I Installation 1 . For use with LGB-6 through 12 boilers. 2 . L O CAL INSPECT OR MUST CER TIFY B OILER FOR IRI COMPLIANCE. 3 . Assemble pilot burner and flame sensor to main burners with pilot brackets.
P art Number 550-141-807/0298 3 Flame Guardian WMBC-1A Electronic Pilot System – IRI Figure 2 Q179 pilot burner assembly Figure 3 Main flame sensor assembly I Installation – continued LGB-A56 Loca.
P art Number 550-141-807/0298 4 LGB (Series 2) — Control Supplement 16 13 15 17 18 18 14 12 11 10 9 7 6 5 4 3 2 1 Boiler Jacket V ent to Outside Atmosphere Drip Leg Service V alve 9 Second motorized.
P art Number 550-141-807/0298 5 Flame Guardian WMBC-1A Electronic Pilot System – IRI 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).
P art Number 550-141-807/0298 6 LGB (Series 2) — Control Supplement P art Number 550-141-807/0298 7 Flame Guardian WMBC-1A Electronic Pilot System – IRI Figure 5 — WMBC-1A panel wiring schematic.
P art Number 550-141-807/0298 8 LGB (Series 2) — Control Supplement Figure 6 — WMBC-1A panel wiring diagram – factory wiring.
P art Number 550-141-807/0298 9 Flame Guardian WMBC-1A Electronic Pilot System – IRI Figure 7 — WMBC-1A field wiring diagram.
P art Number 550-141-807/0298 10 LGB (Series 2) — Control Supplement IV Start -up Low Fire Adjustment 1 . Disable high fire by disconnecting the blue wire in the two-stage gas valve. 2 . Connect manometer to gas manifold (manometer must be capable of measuring 0” to 14” W .
P art Number 550-141-807/0298 11 Flame Guardian WMBC-1A Electronic Pilot System – IRI V Sequence of operation 1 . Operating control begins startup sequence: a. Limit control contacts are closed. b. Purge timer is energized. 2 . Flame safeguard control pilot circuit energizes after 2.
P art Number 550-141-807/0298 12 LGB (Series 2) — Control Supplement W eil-McLain 500 Blaine Street Michigan City , IN 46360-2388 http://www .weil-mclain.com VI P arts list – T able 3 Description Size Vendor/Part Number Weil-McLain Part Number Primary Control Honey well RM789 5C1012 510-35 0-431 Prepurg e Timing Card 2 .
An important point after buying a device Weil-McLain WMBC-1A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Weil-McLain WMBC-1A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Weil-McLain WMBC-1A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Weil-McLain WMBC-1A you will learn all the available features of the product, as well as information on its operation. The information that you get Weil-McLain WMBC-1A will certainly help you make a decision on the purchase.
If you already are a holder of Weil-McLain WMBC-1A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Weil-McLain WMBC-1A.
However, one of the most important roles played by the user manual is to help in solving problems with Weil-McLain WMBC-1A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Weil-McLain WMBC-1A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
