User manual LIFT-MASTER 71 909206 1

[. . . ] DELAY-ON-REVERSE 1PH Modification, K-Line 71-9092061 APPLICATION REQUIREMENTS: This modification is available to models T, GT, J, H, GH, SD and GSD standard door operators with 24V control circuits. This modification is standard on Model GH-300. [. . . ] Locate the IR (instant reverse) relay-line voltage coil with 6 wires: 2 black, 1 red, 1 purple, 1 orange and 1 yellow. Exchange this relay with the 3PDT relay provided. Be sure that the new relay has the same coil voltage as the existing relay. Connect the wires from the original relay to the new relay (refer to figure 1). Install an orange jumper from the common (C) terminal of the TD relay, that corresponds to the yellow wire, to the normally open (NO) terminal of the IR relay where the yellow wire was. Unplug the red wire from the IR relay and plug it into the normally closed (NC) terminal of the TD relay. Install a purple jumper from the common (C) terminal of the TD relay, that corresponds to the red wire, to the normally open (NO) terminal of the IR relay where the red wire was. Plug the TD module onto the two coil terminals of the TD relay. Connect the white into the wire nut that contains at least 3 wires (1 yellow from transformer, 1 orange from open limit and 1 purple from close limit there may also be one or two red wires in this wire nut). Be sure the other wires al remain in the wire nut. 8. . Connect the orange wire to the center of the normally closed (NC) terminal of the IR relay. Connect the blue wire from terminal 3 to the center common (C) of the IR relay - this terminal corresponds to the orange to the orange wire just installed that came from the TD module. [. . . ] Use figure 2 to assist with the rest of the installation instructions. Unplug the yellow wire from the IR relay and plug it into the normally closed (NC) terminal of the TD relay. TERMINAL #3 NEW PURPLE JUMPER PURPLE RED FROM IR BLACK BLUE NC NO C COIL EXISTING WIRE NUT WHITE IR RELAY TD RELAY NC NO C COIL TD MODULE NC NO C BLACK ORANGE YELLOW FROM IR NEW ORANGE JUMPER ORANGE 01-11721D © 1998, The Chamberlain Group, Inc. [. . . ]