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 minimal internal leakage - Electromagnetic coil constructed from thermosetting plastic offering 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, lightweight construction, and strong vibration resistance - 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 - Applicable Refrigerants: R22, R407C, R404A, R410A, and others - Operating Medium Temperature: -30°C to +120°C - Ambient Temperature Range: -25°C to +70°C - 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 valve body with a damp cloth before desoldering and pay attention to flame direction; avoid direct heating of the valve body - When replacing, immerse the assembly in water and consider removing one connection at a time to maintain proper alignment - During installation, wrap the valve with a damp cloth and ensure the welding flame does not directly heat the valve body - For optimal results, use silver-containing brazing filler metal; alternatively, copper-phosphorus filler metal with flux may be used - Use nitrogen purging during welding when possible to minimize oxidation; after welding, purge internal oxide residue with nitrogen - Take precautions to prevent moisture ingress during cooling process