HVAC engineers

 (i) Refrigerant Side Safety Devices 1. High Pressure Switch (HP Switch) Function: Trips the chiller when refrigerant pressure exceeds the safe limit. Location: Installed on the discharge line or condenser. Purpose: Prevents compressor damage or system rupture due to high pressure, usually caused by poor heat rejection, dirty condenser, or airflow blockage. 2. Low Pressure Switch (LP Switch) Function: Trips the compressor when refrigerant pressure drops below the set limit. Location: Installed on the suction line or evaporator. Purpose: Protects the compressor from overheating or running without sufficient refrigerant, commonly due to leaks or expansion valve blockage. (ii) Water Side Safety Devices 3. Chilled Water Flow Switch Function: Ensures proper water flow through the evaporator. Location: Installed at the evaporator outlet. Purpose: Prevents evaporator freezing and ensures efficient heat transfer. 4. Condenser Water Flow Switch Function: Monitors water flow through...