Service Visit includes the following: Inspection and Evaluation of the refrigeration, vaporizer, vapor heating and external piping systems, Assessment of the integrity of equipment control panels, pressure switches, contactors, the condition of wire connections and the operation of pressure switches, Leak Checks of CO2 piping, pH probes will be calibrated and tested. For Water Treatment Plant’s with automatic pH control panels, the complete control system will be tested and tuned including: Checking the control parameters: Valve controller program, Transit time, Dead band, Valve Response, Disturbing the system to verify system stability The equipment includes, but is not limited to: The Dublin Road Water Plant has two (2) 120-ton units: Two (2) Tomco2 1-Job #WT-658, WT-1408. 120-ton capacity carbon dioxide storage units. Each unit is equipped with a low temperature air-cooled Copeland refrigeration condensing unit charged with refrigerant R-404A and an external electrically heated vaporizer. The Parsons Avenue Water Plant has three (3) 50-ton units: Three (3) Tomco-Job #WT-1444; 50 Ton capacity carbon dioxide storage units. Each unit is equipped with a low temperature air-cooled Copeland refrigeration condensing unit charged with refrigerant R-404A and an external electrically heated vaporizer. The Hap Cremean Water Plant has two (2) 100-ton units: Two (2) Tomco2 1-Job #WT-586, WT-Fa1380. 100 Ton capacity carbon dioxide storage units. Each unit is equipped with a low temperature air-cooled refrigeration condensing unit charged with refrigerant R-404A and an external electrically heated vaporizer.
