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and BCC3 boards in G20 and G23 series
such as the 768A-842
Rigid Construction: Engineered to minimize thermal noise and provide structural stability under high-demand cycles
provided the part number matches the system schematics
Modular Orifice Design: Compatible with interchangeable orifices for flexible capacity adjustments in the field
Laars Heating Systems R1-054 Valve R-22 and BCC3 boards in G20The Laars Heating Systems R1 054 Valve is a high capacity pressure relief valve engineered for critical safety and performance in residential and commercial boiler systems. Designed as a direct OEM replacement part, this 3 4" male x 3 4" female relief valve is calibrated for a 30 PSI discharge threshold. With a substantial thermal capacity of 535,000 BTU, the R1 054 ensures reliable overpressure protection for high output hydronic heating systems. Its