Precise twoway valve assembly for fan coil air conditioning systems. Combines the VVI46 twoway valve body with the matching SUA21 actuator (05) rated for 220 VAC power. Available for standard 3/4' and 1' connections for direct replacement or installations. Key benefits Accurate flow control for improved comfort: twoway operation provides reliable on/off or control of water flow to fan coil units, helping maintain stable room temperatures. Easy replacement and compatibility: matches common 3/4' and 1' piping used on fan coil coils and terminal units. Reliable electrical operation: SUA21 actuator (05) designed for 220 VAC supply ensures straightforward integration with standard building power circuits. Simplifies maintenance and upgrades: worn valves or add controlled zones without changing piping layout. Main attributes Model: VVI46 valve body paired with SUA21 actuator (05). Function: Twoway valve assembly for controlling chilled or heated water flow in air conditioning fan coil systems. Sizes: 3/4' and 1' nominal connection options. Actuator power: 220 VAC (SUA21 actuator, version 05). Intended use: Fan coil units and terminal unit water flow control. Performance and compatibility Designed for fan coil air conditioning applications where a twoway valve is required. Actuator rated for standard 220 VAC building power for compatibility with existing HVAC control wiring. Available in 3/4' and 1' sizes to fit common fan coil piping; verify nominal pipe size before ordering to ensure proper fit. Typical use cases Retrofit replacement: Swap a worn or leaking twoway valve on a hotel or apartment fan coil unit with the VVI46 + SUA21 (05) 220VAC assembly to restore reliable control. installations: Install as the zone valve for individual fan coil units in small commercial or residential HVAC systems where 220 VAC actuator power is available. Zoned control upgrades: Use to convert a singlesystem distribution into individually controlled fan coil zones for energy savings and improved occupant comfort. Installation and compatibility notes Confirm required valve size (3/4' or 1') matches existing piping and connections before . Ensure control wiring supplies 220 VAC to the SUA21 actuator (05) and follow local electrical codes. Observe manufacturer installation instructions for mounting orientation, wiring, and startup procedures. For results, pair with appropriate control signals and system balancing to optimize performance. What's included VVI46 twoway valve body SUA21 actuator (05) rated 220 VAC For full technical specifications (materials, pressure ratings, Kv/Cv values, wiring diagrams), consult the manufacturer's datasheet for the VVI46 valve and SUA21 actuator (05) 220 VAC prior to installation.