Description
The Copeland 1311-103 is a 1-inch, 24-volt, 3-wire zone valve equipped with an auxiliary switch, designed for dependable zone-by-zone flow control in hydronic heating and cooling systems. Its 3-wire configuration enables end-switch operation, allowing the auxiliary switch to signal the system circulator or boiler to activate only when the zone calls for conditioning — improving efficiency and reducing unnecessary equipment runtime.
Key Features
- 1″ valve body for standard hydronic piping connections
- 24V AC operating voltage for compatibility with low-voltage zone control systems
- 3-wire design with integrated auxiliary switch for circulator or boiler end-switch control
- Auxiliary switch enables direct wiring to system pump or boiler for coordinated operation
- Reliable actuator mechanism for consistent open/close performance
- Compact form factor suitable for residential and light commercial hydronic applications
Applications
- Hydronic baseboard heating systems
- Radiant floor heating zone control
- Multi-zone boiler systems
- Fan coil unit water flow control
- Chilled water cooling distribution
Why Choose the Copeland 1311-103?
The 3-wire auxiliary switch configuration is the preferred choice for systems where the circulator pump or boiler must be triggered by zone demand. This eliminates the need for a separate zone control panel relay in many installations, simplifying wiring and reducing component count. The 24V operating voltage integrates seamlessly with standard thermostat and zone control wiring throughout residential and commercial hydronic systems.
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