Passenger Elevator K J19317 BST and this operation must be 5239975911792 and this operation must be done by professional technician the concrete thickness is not less than 200mm) Function Function 1 Automatic operation 16 Firefight return 2 Operation by operator 17 Mal operation removal 3 Overhaul operation 18 Main contactor protection 4 Upper automatic door opening 19 Service floor setting 5 Automatic door shut time delay 20 Home landing floor setting 6 Call for opening of this floor 21 Travel contactor protection 7 Optical curtain protection 22 Direction chosen by driver 8 Over load none door shut 23 Opposite door service setting 9 Full load direct running 24 Brake test protection 10 Automatic lighting control 25 Terminal speed change and landing floor number correction 11 Trouble diagnosis 26 Position limit protection 12 Safety circuit protection 27 Limit protection 13 Door interlocking protection 28 Over speed protection 14 Landing floor Function Function 1 Fire fighting running 7 Landing floor