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4. <br />'- <br />�ahnson � 4 <br />Controls <br />SCOPES OF WORK <br />City of Santa Ana <br />20 Civic Center Plaza, M -i 1, Santa Ana, CA 92701 <br />Santa Ana Regional Transportation — Chiller Maintenance PSA <br />Chiller, Air Cooled, Screw, 725 -200T <br />O erafionals <br />3 f /mss er ear <br />Check with a ro date customer re resentalive for o erational deficlencles <br />Checks stem ressures and tam eratures <br />Check refri Brant char e <br />Check tom ressor o11 level s <br />Vlsuall ins act starter <br />Check crankcase heater <br />Vlsuall [na eci for refri Brant and oil leaks <br />Check condltlon of condenser colts <br />Check condenser fan motors and blade s <br />Check for ro er fan roiatlon <br />Check for unusual noise and vlbratlon <br />Check overall condltton of unit <br />Clean area around a ul ment <br />Com leis an re ulred maintenance checklists re ort observations to a ro date customer re reaenlalive <br />Com rehens /vas Y t/me er ear <br />Complete any required maintenance checklists, report observations to approprlafe customer representetive <br />Clean area_around equipment <br />Check overall condltlon o(unit <br />Check for unusual noise and vlbratlon <br />Check (or proper fan rotation <br />Check condenser fan molor(s) and blades) <br />Check condltlon of condenser tolls <br />Check contactors) <br />Check operating controls <br />Check safeties <br />Check and tighten electrical connections <br />Conduct re /rlgerant leak test <br />Check crankcase heater - <br />Inspect starter <br />Check with approprlafe nustomer representative for operational deficlencles <br />Check compressor oil levels) <br />Ch /!/er Condenser CoII Cleanln 4 t /mss er ear <br />Clean area around equipment <br />Complete any required maintenance checklists, report observaticns to approprlafe customer representative <br />Spray coll(s) with chemical solution <br />Check with appropriate customer representetive for operational deficlencles <br />Alnse coils) thoroughly with water <br />Of /Ana/ sls 7 t /me er ear <br />Complete any required maintenance checklists, report observations io approprlafe customer representetive <br />Label and complete paperwork tndlcating present operating conditions <br />Drop off for analysis <br />Remove sample In approved container <br />Check with appropriate customer representative for operational deficiencfes <br />Proposal (10 -i76) by: Tim Lai <br />November 1.2010 <br />Page 7 of 13 <br />