Specifications include, but are not limited to:This Specification covers the requirements for a the Contractor to supply and deliver a Refrigerant Recovery / Recharge Machines, to be used by the Metropolitan Transit Authority of Harris County, Texas (METRO). 2.0 REQUIREMENTS 2.1 The Refrigerant Recovery/Recycling/Recharge Machine for Multiple Refrigerants shall meet the following salient characteristics: Machine shall have program to control machine maintenance, such as change filter and oil\ Machine shall have a vacuum pump minimum capacity of 6 CFM. Machine shall have a minimum of two 50lb refillable tanks. Machine shall operate with 115volts and 60Hz Machine shall be able to operate in an environment of 50°F to 105°F (11°C to 41°C) Machine shall have a minimum recovery rate for vapor of 1/2lb/min, and for liquid of 1lb/min Machine shall have a minimum recycling flow rate of 4lb/min Machine shall have the ability to recharge the HVAC unit with liquid and vapor Machine shall have a heavy-duty filter/drier to remove moisture and acid from refrigerant Machine shall be able to operate with R-22, R-134a or 407-C MP and HP Blends – and many more refrigerants. Lockout Panel – Prevents mixing of refrigerants; slides to one side for 1/4" fittings and to the other for 1/2" Acme fittings Single Pass Recycling – Makes an initial pass through the filter-drier; additional recycling can be programmed in case of compressor burn-out, or other conditions
