Specifications include, but are not limited to: SERVICES TO BE PROVIDED - July and/or April - Inspect and clean condenser coil – July & April; Check condenser fan operation and record amp draw; Check and record suction and head pressure; Check and record superheat; Check and record subcooling; Check and record compressor amp rating and draw; Check and record temperature drop across evaporator; Check and record evaporator differential pressure; Check and record ambient temperature; Inspect all contactors and motor starters; Check operation of crank case heaters; Megger and record compressor motor winding readings; Check glycol freeze point; Check operation of high and low pressure switches; Check operation of safety controls; Check cooling on/off setpoints; Check operation of microprocessor (if applicable); Check flow switch operation; Check for proper winterization procedure w/ low ambient; Leak check entire machine; Check oil level and take oil sample*; Check and tighten all electrical connections; Check all starter contacts; Check and calibrate all operating and safety controls; Check refrigerant charge; Clean off machine and surrounding area; Start machine, fill out operating log sheet; Report and make recommendations of any required repairs..