Apollo 1500 Linear Actuator System (816 arm & 636 Control Board) Installation Reference Manual November 30, 2022 21:57 Updated Changed DIP Switch illustration on page 37 to show Dip Switch 1 as OFF (not ON) to match text per DCR 331. InstallRefManual_1500LA_MX4725.pdf 5 MB Download Related articles Multi-Code Wiring to 636 Control Board 1500/636 No Longer Automatically Closing How do I get my 816 extension tube back to factory position? CBOX1050 Installation and Programming Manual Mercury 310 Installation and Programming Manual