Sprinter 2500 V6-3.0L DSL Turbo VIN 45 (2007)
Receiver Dryer: Description and Operation
Plumbing - Front
Description
DESCRIPTION
The A/C receiver/drier (1) stores unnecessary refrigerant, filters the refrigerant, helps remove moisture from the refrigerant and retains any refrigerant
vapor that may leave the A/C condenser (2), until it becomes a liquid. The A/C receiver/drier consists of a metal housing containing desiccant and a filter
with two ports located at the bottom of the housing. The A/C receiver/drier is installed on the high-side of the A/C system and is connected directly to the
right end of the A/C condenser by use of rubber O-rings, a bolt (3) and plastic retaining bracket (4).
Operation
OPERATION
The A/C receiver/drier for the front A/C-heating system performs a filtering action to prevent foreign material in the refrigerant from contaminating the
front A/C expansion valve. Refrigerant enters the front A/C receiver/drier as a high-pressure, low temperature liquid. Desiccant inside the A/C
receiver/drier absorbs any moisture which may have entered and become trapped within the refrigerant system. In addition, during periods of high
demand operation of the A/C system, the front A/C receiver/drier acts as a reservoir to store surplus refrigerant.
NOTE: Replacement of the O-ring seals is required anytime the A/C receiver/drier is removed. Failure to replace the rubber O-ring seals may result in a
refrigerant system leak.
The front A/C receiver/drier has no serviceable parts except for the O-ring seals. The O-ring seals used on the connections are made from a special type
of rubber not affected by R-134a refrigerant. The O-ring seals must be replaced whenever the front A/C receiver/drier is removed from the front A/C
condenser.
The front A/C receiver/drier cannot be repaired and must be replaced if leaking or damaged, or if an internal failure of the A/C compressor has occurred.
