16 English8-4 DEFAULT SETTINGS1. Once piping work is completed, conduct the following settings as needed.(1) When connecting the BEV unit to the BS unit in the heating/cooling free system,turn the SS1 on the A1P to M (Main) for only one of the BEV units connected tothe remote controller on which heating/cooling switching is made possible.(Refer to Fig. 21)(2) For BEV unit-only systemsThe Cool/Heat SELECTOR is needed.Refer to the installation manual included with the Cool/Heat SELECTOR for details on how to set it.2. Once all piping work is done, screw the control box lid shut using the mounting screws.9. HOW TO ATTACH THE NAMEPLATEAttach the included nameplate (9) next to the machine nameplate on the indoor unit.10. TEST OPERATIONMake sure the control box lids are closed on the indoor and BEV and outdoor units.Refer to the installation manual of the outdoor unit.• The operation lamp of the remote controller will flash when a malfunction occurs. Check the malfunctioncode on the liquid crystal display to identify the point of trouble. An explanation of malfunction codes andthe corresponding trouble is provided in “CAUTION FOR SERVICING” of the outdoor unit.M S Fig. 21