The Schneider Electric Erie VS2222 is a high-performance 1/2 inch NPT zone valve body designed for demanding hydronic and steam applications

Key Benefits Dual-Stage Modulation: Enhances energy efficiency and shortens warm-up times by switching between low and high heating outputs

preventing erratic system behavior or contact welding under standard inductive loads

eliminating the need for shaft modifications or field adjustments during installation

Contractor Grade: Genuine OEM construction ensures nominal dimensions of 16" x 25" x 3" (Actual: 17

Lochinvar & A.O. Smith 100233301 Switch R-407C The Schneider Electric Erie VS2222The Lochinvar & A. O. Smith 100233301 Switch is a critical fixed setting Normally Open (N. O.) air pressure switch designed for negative pressure sensing applications in high efficiency venting systems. Calibrated specifically to 1. 25" WC, this OEM component serves as a primary safety proving switch, ensuring the combustion blower is generating sufficient draft before the ignition sequence initiates. For veteran technicians, this 100233301 pressure