Carrier 342796-75104 Replacement Evaporator Coil

Thermostatic expansion valves are an integral part of your refrigeration unit. They are responsible for ensuring the right dosage of refrigerant is entering the cooling coil to ensure maximum efficiency in the air conditioning of the system.    These special expansion valves come with a temperature sensor that is mounted at the end of the evaporator coil. They incorporate signals from this sensor to maintain the required temperature of the HVAC system. The thermostatic expansion valve works like a precision device that can regulate the measurements of the liquid refrigerant that flows into the evaporator of your system. This regulation in the flow of the refrigerant is essential to prevent the reverse flow of the refrigerant into the compressor of your system.    Through this mechanism, the thermostatic expansion valve successfully separates the high and low pressure sides of the refrigeration/air conditioning system. The liquid refrigerant enters the expansion ...

Regular cleaning of evaporator coil prevents dust buildup and maintains efficient heat transfer. Inspect fins and surrounding components for damage or corrosion and ensure proper airflow. Schedule periodic servicing to detect refrigerant leaks and keep cooling performance stable.

• Refrigerant leakage.
• Reduced cooling efficiency due to coil fouling.
• Frost or ice buildup on coil.
• Airflow restriction from dust accumulation.
• Corroded or damaged coil fins.
• Uneven temperature output.
• Blocked condensate drain line.