Sub-menu screen Mode 20 Unit 00 Press or button, scroll to the desired Unit No. and then press button to set the selection. Sub-menu screen Mode 20 Unit 00 Press or button, to select “ ”, and then press button to set the selection. Sub-menu screen Press or button, select First Code No., and then press button. a First Code No. b Second Code No. b a SW 00 – 01 Sub-menu screen SW 00 – 01 Press or button, scroll to the desired First code No. and then press button to set the selection. 25