References
specifications	143

The newest addition to Standard’s dependable line of refrigeration products, the A series suction accumulators is available in nine stock models, five diameter sizes and seven connection size options. Mounting brackets come standard on all units, and fusible plugs are available on larger models. The accumulators are built to ASME code and can be built to other codes if necessary.

Compressor damage due to liquid slugging, loss of oil from the crankcase, or bearing washout can be caused by the floodback of liquid refrigerant through the system and back to the compressor before being evaporated. In order to protect against this condition on systems vulnerable to liquid damage such as heat pumps or commercial refrigeration, a suction accumulator is used. The accumulator intercepts and stores the liquid refrigerant before it reaches the compressor crankcase.

Improved system balance can also be attained with the installation of a Suction Accumulator. An accumulator stores the excess refrigerant as the condenser or evaporator load varies, as well as during the compressor off-cycle. Standard Refrigeration Suction Accumulators are built for dependable and worry-free operation.

Accumulator Location

The accumulator should be placed in the compressor suction line between the evaporator and the compressor, on the same level as the compressor so as to minimize the length of the suction line between the compressor and accumulator. Reverse cycle heat pumps must locate the accumulator between the reversing valve and the compressor so that it is situated in the suction line regardless of operation mode.

Accumulator Selection

Suction accumulators must be selected according to tonnage, evaporator temperature,
and holding capacity. Selection and application of accumulators are the responsibility of
the customer.

Features

• Prevents compressor damage due to slugging of refrigerant and oil
• Positive oil return at all rated conditions
• Designed for low temperature application
• Low pressure drop
• Acts as a suction muffler
• Corrosion resistant paint
• Fusible relief device available on larger models
• A.S.M.E. Coded Construction