Samsung AM TXMDEH Series Installation Manual

43Setting key operation and checking the view mode with tact switchK1 Control KEY operation Display on segmentPress and hold 1 time Auto trial operation “K” ”K”“BLANK”“BLANK”K1(Number of press) KEY operation Display on segment1 time Refrigerant charging in Heating mode (Note 1) “K” ”1”“BLANK”“BLANK”2 times Trial operation in Heating mode (Note 1) “K” ”2”“BLANK”“BLANK”3 times Pump out in Heating mode (Note 1) “K” ”3”“BLANK”“1”4 times Vacuuming “K” ”4”“BLANK”“1”5 times End Key operation —K2(Number of press) KEY operation Display on segment1 time Refrigerant charging in Cooling mode “K” ”5”“BLANK”“BLANK”2 times Trial operation in Cooling mode “K” ”6”“BLANK”“BLANK”3 times Pump down in Cooling mode “K” ”7”“BLANK”“BLANK”4 times Automatic setting of operation mode(Cooling/Heating) for trial operation “K” ”8”“BLANK”“BLANK”5 times Checking the amount of refrigerant“K”“9”“X”“X”(Display of last two digits may differ dependingon the progress)6 times Discharge mode of DC link voltage “K” ”A”“BLANK”“BLANK”7 times Forced defrost operation “K” ”B”“BLANK”“BLANK”8 times Forced oil collection “K” ”C”“BLANK”“BLANK”9 times Inverter compressor check “K” ”D”“BLANK”“BLANK”10 times H/R : Auto pipe pairingH/P : Unused“K” ”H”“X”“X”(Display of last two digits may differ dependingon the progress)11 times End Key operation —❋ Even when the outdoor unit power is off, it is dangerous when you come in contact with inverter PCB since it is chargedwith high DC voltage.❋ When replacing/repairing the PCB, cut-off the power and wait until the DC voltage is discharged before replacing/repairing them. (Wait for more than 15 minutes to allow it to discharge naturally.)❋ When there were error, 'Discharge mode of DC link voltage' may not have been effective. Especially if error E464 hasbeen occurred, power element might be damaged by fire and therefore, do not use the 'Discharge mode of DC linkvoltage'.❋ During "Discharge mode of DC link voltage", voltage of INV will be displayed.