MAXA BDS28A Spezifikationen PDF herunterladen (Seite 25)

8.4.2 Outdoor Unit:

8.4.2.1 Key detection points

Test2

Test4

Test1

Test3

Test5

Test6

Test7

Test8 Test9

Test point SN Test point Related specification Test value in normal condition

Test 1 Between AC-L1 and N1 Neutral and live wire 165V ~ 253V

Test 2 Left side of R201, radiator U404 DC bus bar 230V ~ 380V

Test 3 Top of D304, Bottom of D304 IPM drive voltage + 15V 13,5V ~ 15,5V

Test 4 Top of C116, bottom of C116 Relay drive voltage +12V 11V ~ 13V

Test 5 Right side of R228, left side of D228 PFC drive voltage +15V 13,5V ~ 15,5V

Test 6 Left and top ends of U4, bottom of U4 Chip +3,3V 3,1V ~ 3,3V

Test 7 Right and top end of U4, bottom of U4 +5V 4,8V ~ 5,1V

Test 8 Bottom of R506, bottom of U4 Outdoor unit receiving signal Fluctuate between 0 and 3,3V

Test 9 Bottom of R523, bottom of U4 Outdoor unit sending signal Fluctuate between 0 and 3,3V

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MAXA BDS28A Spezifikationen Seite 25