Honeywell Fan coil Unit electric valve VS92C15NT

**Technical Parameters of Honeywell Fan Coil Unit Electric Valve VS92C15NT**

**Product Overview:**

The Honeywell VS92C15NT is a two-way, normally closed electric globe valve designed specifically for control applications in fan coil units (FCUs), small air handling units (AHUs), and other hydronic systems. It operates as a final control element, modulating or switching water flow in response to signals from a room thermostat or controller to maintain precise space temperature.

**Key Specifications:**

*   **Valve Type:** Two-way, globe pattern, with threaded connections.

*   **Actuator Type:** Thermal electric (self-contained), non-spring return.

*   **Normal Position:** Normally closed (NC). The valve closes when de-energized.

*   **Voltage:** 24 VAC, 50/60 Hz.

*   **Power Consumption:** Typically 4.5 VA during stroke.

*   **Stroke Time:** Approximately 150 seconds (full open to close or close to open).

*   **Valve Body Material:** Forged brass.

*   **Seat & Plug:** Stainless steel stem with precision-machined plug.

*   **Connection Size:** 1/2" NPT female threads.

*   **Pressure Rating:** Maximum working pressure of 250 psi (17.2 bar).

*   **Temperature Range:**

    *   Fluid Media: 40°F to 280°F (4°C to 138°C).

    *   Ambient (Actuator): 32°F to 140°F (0°C to 60°C).

*   **Flow Coefficient (Cv):** 1.6 (provides suitable flow capacity for typical fan coil circuits).

*   **Leakage:** Class IV (ANSI/FCI 70-2).

*   **Control Signal:** On/Off (two-position) or floating (incremental) control, compatible with common fan coil thermostats.

*   **Mounting:** Direct mounting onto the valve body; actuator can be rotated to 360° for optimal wiring access.

**Functional Description:**

The VS92C15NT integrates a thermal actuator with a brass globe valve. The actuator contains a heater element and a wax motor. Upon receiving a call for heating or cooling from the controller, power is applied to the heater. The heat causes the wax to expand, gradually pushing the