Mitsubishi Electric MXZ-2A20NA-1 Installation Manual Page 1

INSTALLATION MANUALFOR INSTALLERCONTENTS1. BEFORE INSTALLATION ...22. OUT

21. BEFORE INSTALLATION1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY• Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY”

32. Front (blowing) side openAs long as space like the one showninthegurecanbemaintained, it does not mat-ter if there are obstacles in three d

41-6. INSTALLATION DIAGRAMUnitsshouldbeinstalledbylicensedcontractoraccordingtolocalcoderequirements.Aftertheleaktest,applyinsulat-ing

52. OUTDOOR UNIT INSTALLATION2-1. CONNECTING WIRES FOR OUTDOOR UNIT• Be sure to use special circuits for room air conditioner.• Wiring work should

63. FLARING WORK AND PIPE CONNECTION3-1. FLARING WORKPipe diameter [mm(inch)]Nut (mm)A[mm(inch)] Tightening torqueClutchtypetool for R410AClut

74-1.PURGINGPROCEDURESANDLEAKTESTStop valve for GASStop valve cap(Torque 19.6 to 29.4 N•m, 200 to 300 kgf•cm, 15 to22 ft•lb)Gauge manifold valve

84-3.TESTRUN• Besuretoperformthetestrunforeachunit.Makesureeachindoorunitoperatesproperlyfollowingtheinstallationmanualattache

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPANJG79A039H01JG79A039H01_cover4.indd 2 5/9/2008 2:23:16 PM