Optimized System Efficiency: Restores proper valve modulation

Terminals 1 and 2 provide 24V power

moist air from circulating into the refrigerated space immediately following a defrost cycle

refer to the A4TXV series or verify with the equipment’s data plate to ensure matching pressure/temperature curves

Smith 100093631 Ignitor is a critical hot surface igniter replacement designed for high-efficiency gas-fired equipment

Siemens Building Technology 658-0052 Valve R-22 Optimized System Efficiency: Restores properThe Siemens Building Technology 658 0052 Valve is a professional grade 1 2 inch 3 way changeover valve engineered for precise fluid management in hydronic HVAC systems. Designed as part of the Siemens Powertop series, this valve features a 2. 5 Cv flow coefficient and a quick opening flow characteristic, making it an ideal choice for 4 pipe radiant panel applications and terminal unit control. The 658 0052 is strictly a non mixing changeover valve,