The White-Rodgers 1127-2 is a SPDT hydronic zone valve attaches directly to surface of pipe and is used for high limit switching action control. The 1127-2 is designed for use on Hot Water Heating systems. The highly sensitive Hydraulic-Action element is held snugly in contact with the pipe or tank to provide quick response to changes in water temperature. This zone valve has a single-pole, double-throw switch action, offering terminals that have open-on-rise switch action as well as closeon-rise switch action. This control may be used as a high limit control, low limit control, circulator control, or as a combination low limit and circulator control. Features Hydraulic action element can be mounted in any position - no leveling required Dustproof steel case Special screw terminals with â€ears†securely hold solid and stranded wires Includes pipe strap and mounting screws
