User manual LIFT-MASTER 71 909206 3

[. . . ] DELAY-ON-REVERSE 3 PH MODIFICATION K-LINE71-909206-3 MODELS T, GT, J, H, GH, SD & GSD STANDARD DOOR OPERATORS WITH 24V CONTROL CIRCUITS APPLICATION This modification is standard on model GH-300. Not for use with solid state logic control boards (L). · The operator must have C2/B2 wiring (not for medium duty operators). [. . . ] This delay allows the door and operator to come to a more complete stop than would happen if there was no delay. · Prevents shock loading of the door and operator especially if a safety device or other open override is activated during closing, resulting in a longer life of the operator. · This delay has no effect on starting an operator that has been stopped for longer than 2 seconds. PREPARATION Unpack kit to verify the parts listed at right are included. Refer to installation instructions on reverse side. 1. Install the auxiliary contact blocks on top of the reversing contactor. These blocks install by sliding them into slots from the odd numbered side towards the even numbered side. When they are fully on they will click into place and will not slide off without pressing the release lever, a small screwdriver may be needed to press it in. If any wires were pushed aside during installation be sure to separate them so that wires on adjacent prongs do not touch. Install the 24VDC, DPDT relay provided using existing holes in the electrical box on the side of the box nearest terminals L1, L2 and L3. Locate the orange wire that goes from terminal 1 on the terminal block to prong 13 on the open half of the contactor. Install a new orange wire from terminal 1 to one common (C) prong on the TD relay. Find the normally closed (NC) prong on the TD relay that goes with this common and connect this NC with a yellow wire to prong 13 on the open half of the contactor where the original wire was removed. 5. Locate the purple wire that connects terminal 2 to terminal 14 on the closed side of the contactor. Install a new purple wire from terminal 2 to the second common on the TD relay. [. . . ] Use an orange jumper wire to connect 54 on the the auxiliary open contact to 54 on the auxiliary close contact (figure 1). Reconnect power to operator. Figure 1 13 5 CLOSE 61 62 14 RD 6 WH 3 YE 1 13 5 3 YE 1 53 54 CLOSE OPEN 61 62 4 2 14 OR 6 4 YE OPEN YE OR PU 2 OR N. C. PU Exisiting Wire Nut 53 54 1 2 3 4 5 7 10 L1 L2 L3 01-11605F © 2006, The Chamberlain Group, Inc. [. . . ]