Abstract: A heat exchanger module configured for use in a vapor compression based climate control system including a suction line heat exchanger having a plurality of stacked plates configured to accommodate two separate fluid flow paths for heat exchange therebetween. The heat exchanger also includes a first inlet for flow of a high pressure subcooled fluid from a condenser to the module along a first fluid flow path, a first outlet for flow of a low pressure superheated fluid from the module to a compressor along a second fluid flow path, a second outlet for flow of the subcooled fluid from the module to an evaporator along a third fluid flow path, and a second inlet for flow of the low pressure superheated fluid from the evaporator to the module along a fourth fluid flow path. The module also includes a port block with a first conduit for the third fluid flow path and a second conduit for the fourth fluid flow path.