White-Rodgers 11D18-1 Hydronic Control

White-Rodgers 11D18-1 Hydronic Control is your go-to hydronic control for boiler and radiant heating systems. This well immersion control supports vertical or horizontal mounting for flexible installation and comes with an extra capillary for extended reach.

Engineered for precise temperature management, it covers a 100 to 240 Deg F range with a differential of 5 to 45 Deg F. The SPST, Open-On-Rise contact configuration delivers reliable switching, while UL and CSA approvals ensure safety and performance. The unit features a gray finish and a compact footprint: 2-9/16 Inch depth x 5-3/8 Inch height, with a 1/2 Inch standard shank for easy mounting. The motor ratings include 10 Amp at 120 VAC, 6 Amp at 240 VAC (FLA), and 2.9 Amp at 24 VAC for valve and relay workloads.

• Type: Well immersion hydronic control
• Mounting: Vertical or horizontal with extra capillary
• Temperature range: 100–240°F; differential: 5–45°F
• Contact: SPST, Open-On-Rise
• Approvals: UL, CSA
• Dimensions: 2-9/16" D x 5-3/8" H; 1/2" standard shank