Honeywell Fan coil Unit electric Valve VS92C20NT

**Technical Parameters for Honeywell Fan Coil Unit Electric Valve VS92C20NT**

**General Description:**

The Honeywell VS92C20NT 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 similar hydronic systems. It operates as a final control element, modulating or on/off control of water flow in response to signals from a room thermostat or controller, thereby regulating the heating or cooling output of the unit. Its compact and robust construction ensures reliable performance in commercial and residential HVAC applications.

**Key Features:**

*   **Actuator Type:** Synchronous motor actuator with spring-return mechanism.

*   **Valve Action:** Normally closed (NC). The valve opens upon power application and closes automatically when de-energized.

*   **Connection Type:** Threaded connections (typically Rp or G threads as per regional specifications).

*   **Body Material:** Brass, suitable for standard water applications.

*   **Seat & Seal:** PTFE (or similar) for tight shut-off and durability.

*   **Manual Override:** Equipped with a manual opening lever or handwheel for system commissioning, maintenance, or manual control during power loss.

*   **Mounting:** Direct coupling to the valve body, designed for straightforward installation.

**Detailed Technical Specifications:**

*   **Valve Characteristics:** Equal percentage flow characteristic, providing stable control and good turndown ratio for comfortable space temperature regulation.

*   **Flow Coefficient (Kv):** Typically 2.0 m³/h (subject to specific pressure drop conditions; refer to official datasheet for precise curves).

*   **Pressure Rating:** Maximum working pressure up to 16 bar (232 psi).

*   **Temperature Range:**

    *   Medium (Water): -10°C to +120°C.

    *   Ambient: -5°C to +55°C.

*   **Leakage Class:** Class IV (or as per EN 14597 standards), ensuring minimal internal leakage when closed.

**Electrical Data:**

*   **Supply Voltage:** 230V AC, 50/60Hz (common specification; other voltages may exist).

*   **Power Consumption:** Typically 3.5 VA during operation.

*   **Control Signal:** Floating (tri-state) control. The actuator moves based on the duration of a continuous voltage signal (e.g