YCQC05L01 4-20mA Refrigerant Pressure Transmitter for HVAC Units

      YCQC05L01 is a high-precision 4-20mA signal output pressure transmitter specially developed for mainstream HVAC and refrigeration equipment, used to real-time detect refrigerant pressure inside heat pumps, chillers and multi-split air conditioners. It supports wide DC power supply of 10-30V, with a wide working temperature range from -40°C to +80°C to adapt to harsh outdoor unit installation environments. Adopting standard SAE 1/4″ threaded interface, it can be directly installed on refrigerant pipelines, compatible with electronic expansion valve controllers to realize automatic superheat adjustment and system high/low pressure safety protection, effectively improving the stable operation and energy efficiency of the whole HVAC refrigeration system.

• Standard 4-20mA linear signal output, easy connection with main control boards
• Wide supply voltage: 10–30 VDC, strong power fluctuation resistance
• Ultra-wide operating temperature: -40°C ~ +80°C for outdoor unit use
• SAE 1/4″ threaded mounting, direct pipeline installation without adapters
• Mini compact size: 65×22×22mm, lightweight only 0.04kg
• High measurement linearity, stable monitoring of refrigerant high/low pressure
• Compatible with mainstream EEV control modules for automatic system protection

Item	Parameter
Model	YCQC05L01
Compatibility	HVAC heat pump, chiller, refrigeration unit, SEC EEV controller
Working Voltage	10 – 30 VDC
Operating Temperature	-40 °C ~ +80 °C
Mounting	SAE 1/4″ Thread Mount
Product Length	65 mm
Product Width	22 mm
Product Height	22 mm
Product Weight	Approx. 0.04 kg
Country of Origin	China (subject to production batch)
HS code	9026.20.0000
Shipping Length	100 mm
Shipping Width	50 mm
Shipping Height	50 mm

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Application Scope

       

      The YCQC05L01 pressure transmitter is suitable for air source heat pumps, water-cooled chillers, VRF multi-split central air conditioners, constant temperature & humidity cabinets, industrial refrigeration cold storage, liquid cooling energy storage equipment, and all HVAC refrigeration units that need real-time refrigerant pressure monitoring and match EEV control modules.

     We provide full series of refrigeration and HVAC spare parts, including control display panels, temperature controllers, sensors, power modules and industrial electrical accessories.

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