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The Lochinvar RLY2049 relay board (MPN RLY2049) is a relay interface and replacement assembly for Lochinvar equipment and compatible boilers and water heaters. It is used in boiler, hydronic, and water-heating applications, including Copper-Fin II CH/CF 991-2071 models. The board functions as a PCB add-on relay module to provide relay switching for control systems and is packaged as a single unit.
Replacement relay board (MPN RLY2049) for Lochinvar boiler and water-heating systems
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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