The function of a Suction Line Accumulator is to provide temporary storage and controlled return of liquid refrigerant and oil to protect the compressor from damage by sudden surges of liquid.

Suction Line Accumulators are installed in air conditioning and refrigeration systems where sudden return of liquid down the suction line is possible. Suction Line Accumulators are designed to meter both liquid refrigerant and oil back to the compressor at a controlled rate. In addition to protecting the
compressor from damage, the Accumulator helps maintain system efficiency and proper crankcase oil levels.
 

The Heat Exchanger models are designed to be used on low temperature systems to sub-cool the liquid line. Passing the liquid line through the heat exchanger coil on the Accumulator also helps to boil off liquid refrigerant in the Accumulator. Heat Exchanger models can help to improve system efficiency while helping oil flow in the suction line. To avoid overheating the compressor, do not use discharge gas through the heat exchanger coil.
 

Henry Technologies' ASME Standard and 1” NPT Suction Line Accumulators are suitable for use with ammonia, HFC and HCFC refrigerants and their associated oils, as well as other industrial fluids non-corrosive to steel. ASME Heat Exchanger Suction Line Accumulators are suitable for use with HFC
and HCFC refrigerants and their associated oils, as well as other industrial fluids non-corrosive to steel and copper.

Main Features

• ODS connections
• Heat Exchanger models available
• Mounting Legs on all models
• Models available with 1” NPT fitting for S-9400-1 type level switch
• Prevents liquid slugging
• Controlled liquid refrigerant and oil return

How it Works
Refrigerant vapor from the evaporator enters the Suction Line Accumulator, along with any liquid refrigerant and oil. The liquid is held at the bottom of the Accumulator until it is metered back to the compressor. A tube-in-tube assembly is connected to the outlet of the Accumulator to ensure vapor is returned to the compressor. On Vertical Accumulators, liquid is metered back to the compressor via an orifice at the bottom of the tube-in-tube assembly. This metering only occurs when the compressor is running.