Product Description
The 025-52739-000 Liquid Temperature Sensor is an OEM York / Johnson Controls HVAC temperature sensing device used in chillers and refrigeration systems to measure the temperature of water or refrigerant in pipelines, heat exchangers, and evaporator/condenser circuits.
It plays a critical role in HVAC control logic, helping the system maintain stable cooling performance and energy efficiency.
Key Features
• OEM liquid temperature sensor for HVAC systems
• Designed for York / Johnson Controls chiller applications
• NTC thermistor-based temperature sensing element
• High accuracy temperature monitoring of chilled water systems
• Fast response to temperature changes in liquid flow
• Sealed construction for moisture and industrial protection
• Plug-and-play type connector (model-dependent harness)
• Used for inlet/outlet temperature control in chillers
• Reliable long-term operation in HVAC environments
• Essential for system protection and efficiency control
Technical Specifications
• Product Type: Liquid Temperature Sensor
• Model: 025-52739-000
• Manufacturer: York / Johnson Controls
Sensing Characteristics
• Sensor Type: NTC thermistor (typical OEM design)
• Temperature Range: approx. -50°C to +105°C (system dependent)
• Response Time: Fast thermal response for liquid media
• Accuracy: High precision HVAC-grade sensing
Physical Characteristics
• Probe Type: Immersion / contact-style liquid sensor
• Construction: Metal sensing probe with insulated cable
• Cable Type: Shielded HVAC control cable with connector
• Mounting: Pipe/housing insertion (chiller system dependent)
• Weight: ~30–40 g (approx.)
• Design: Compact OEM replacement sensor assembly
System Compatibility
• York chillers (YVAA, YVWA, YCAV series and similar)
• Johnson Controls HVAC control systems
• Chilled water and condenser water loops
• Industrial refrigeration systems

