Between which components is the liquid line filter dryer installed?

Between which components is the liquid line filter dryer installed?

• A. between the condenser and metering device
• B. between the evaporator and compressor
• C. between the condenser and metering device
• D. before the condenser

Answer: (C)

The liquid line filter-drier is placed in the liquid line after the condenser and before the metering device. The key idea is to dry the refrigerant and trap any debris before it reaches the metering device (expansion valve or capillary), where moisture or particles can cause trouble. If moisture gets into the metering device, it can freeze and block flow, and it can also react with oil to form acids as the refrigerant circulates, leading to corrosion and damage downstream. By locating the filter-drier in the liquid line, right where the refrigerant is still in liquid form and headed toward the expansion device, you protect the metering device and the evaporator from moisture and contaminants. Placing it elsewhere, such as in the suction line or before the condenser, won’t guard the critical metering device as effectively.

The liquid line filter-drier is placed in the liquid line after the condenser and before the metering device. The key idea is to dry the refrigerant and trap any debris before it reaches the metering device (expansion valve or capillary), where moisture or particles can cause trouble. If moisture gets into the metering device, it can freeze and block flow, and it can also react with oil to form acids as the refrigerant circulates, leading to corrosion and damage downstream. By locating the filter-drier in the liquid line, right where the refrigerant is still in liquid form and headed toward the expansion device, you protect the metering device and the evaporator from moisture and contaminants. Placing it elsewhere, such as in the suction line or before the condenser, won’t guard the critical metering device as effectively.