the images shown on the cover page and in this document are for illustrative purposes only and are not contractual.the manufacturer reserves the right to change the design at any time without notice.9 - majoR system ComPonents anD oPeRatIon Data .................................................................................... 309.1 - Compressor ............................................................................................................................................................................ 309.2 - Oil filter ................................................................................................................................................................................... 309.3 - Refrigerant .............................................................................................................................................................................. 309.4 - Lubricant ................................................................................................................................................................................. 309.5 - Oil supply solenoid valve....................................................................................................................................................... 309.6 - Suction and economiser screens ........................................................................................................................................... 309.7 - Pressure vessels....................................................................................................................................................................... 309.8 - High-pressure safety switch .................................................................................................................................................. 319.9 - Condensers .............................................................................................................................................................................. 319.10 - Fans ........................................................................................................................................................................................ 319.11 - Electronic expansion valve (EXV) .................................................................................................................................... 329.12 - Moisture indicator ................................................................................................................................................................ 329.13 - Filter drier ............................................................................................................................................................................. 329.14 - Sensors ................................................................................................................................................................................... 329.15 - Service valve (option 92) ..................................................................................................................................................... 339.16 - Variable frequency drive...................................................................................................................................................... 3310 - oPtIons ............................................................................................................................................................................... 3411 - stanDaRD maIntenanCe .......................................................................................................................................... 3611.1 - Level 1 maintenance ............................................................................................................................................................ 3611.2 - Level 2 maintenance ............................................................................................................................................................ 3611.3 - Level 3 (or higher) maintenance ........................................................................................................................................ 3611.4 - Tightening torques for the main electrical connections ................................................................................................... 3711.5 - Tightening torques for the main bolts and screws ..........................................................................................................................3711.6 - Condenser coil ...................................................................................................................................................................... 3711.7 - Evaporator maintenance ..................................................................................................................................................... 3811.8 - Compressor maintenance .................................................................................................................................................... 3811.9 - Variable frequency drive maintenance ............................................................................................................................. 3812 - CheCklIst to Be maDe By the InstalleR BefoRe CallIng CaRRIeR seRVICeCommIssIonIng UnIt .................................................................................................................................................... 39