1P Air Conditioning Four Way Reversing Valve Refrigeration Part for HVAC System Maintenance Features: - Reliable operation under low pressure difference with low pressure drop and internal leakage - Electromagnetic coil made of thermosetting plastic, providing water resistance, lightning resistance, and excellent insulation performance - Energy-saving design with low temperature rise, low noise, and good anti-vibration performance - Excellent sealing performance, high energy efficiency, light weight, good vibration resistance, and environmentally friendly - Designed for use in heat pump systems such as central units and room air conditioners to switch between cooling and heating modes by redirecting refrigerant flow Specifications: - Condition: New - Material: Copper - Use: Suitable for refrigeration systems from 1 to 120 tons, wide application range - Compatible Refrigerants: R22, R407C, R404A, R410A, etc. - Operating Medium Temperature: -30C to +120C - Ambient Temperature Range: -25C to +70C - Relative Humidity: 95% RH or less - Certifications: UL, VDE, PED Package List: 1 x Air Conditioning Four-Way Valve (Interface may vary) Notes: - Remove the solenoid coil before desoldering the four-way valve to prevent damage during welding - Wrap the four-way valve with a damp cloth before desoldering and pay attention to flame direction; avoid direct heating of the valve body - Submerge the four-way valve assembly in water when replacing; consider removing and welding one connection at a time to control alignment - During installation, wrap the valve with a damp cloth and ensure proper flame direction to avoid overheating the valve body - For best results, use silver-containing brazing filler metal when welding; alternatively, copper-phosphorus brazing alloy with flux can be used - Use nitrogen purging during welding if possible to minimize oxidation; after welding, purge internal oxide residue with nitrogen and take care to prevent moisture ingress during cooling