For standard V8043 series zone valves

Key Benefits Precise OEM Fit: Drop-in replacement with a 5

leak-proof braze into the liquid line

Built with high-temperature wire and specialized porcelain insulators

Its durable brass construction and industrial-spec housing are engineered to withstand the thermal cycling and vibrations inherent in high-demand HVACR environments

Johnson Controls Y64T21-0 Transformer 322057-301 For standard V8043 series zoneTransformer, 120 208 240 V Primary, 24 V Secondary, 92 Va with Circuit Breaker, Plate Mounting, End Bell Holes with 8 " Leads ( Primary Connections ), Three Screw terminals ( Secondary Connection ) Y64T21 0 is the direct replacement for Y64T22 0