Lift-Master K90-9210M1 User Manual

To prevent possible SERIOUS INJURY or DEATH from electrocution, disconnect electric power to operator BEFORE installing.

ALL electrical connections MUST be made by a qualified individual.

WARNING

APPLICATION

This wiring modification is available to models T, GT, APT, J, H, GH, SD and GSD standard door operators with 24V control circuits (M) and logic control board (L).

NOTE: Not available with Hazardous Area or Variable Speed Modifications.

FUNCTIONS

Each switch, or pole, provides a means to control auxiliary lights, heaters or other equipment. The switch can be used to turn on or off such equipment when the door is fully opened or fully closed.

COMPONENT MOUNTING

1. Locate the new auxiliary limit switch bracket assembly with the limit switches attached.

2. Fasten the limit switch bracket down to the box using the two #8-32 x 1/4" long self tapping screws provided (Figure 3).

3. If the bracket interferes with the screws from the open and close limit switch, install the backup plates provided, between the electrical box and the head of the screw (Models T, GT and GH only).

4. Connect ends of wire leads to desired field wiring with wire nuts to complete installation (Figures 1 and 2).

NOTE: Auxiliary limit bracket assemblies with one switch are shipped set up for auxiliary closed. If auxiliary open is required, remove auxiliary switch and flip over.

CARTON INVENTORY

K90-9210M1 K90-9210M2

DESCRIPTION QTY QTY

Limit switch 1 2 Pan head screw

#4-40 x 3/4" 2 4 Internal tooth lockwasher 2 4 Limit switch backup plate 1 2 Limit switch nut plate 1 2 Limit switch mounting

bracket “H” 1 1 Limit switch mounting

bracket “T” 1 1 Pan Head screw

#8-32 x 1/4" 3 3 White wire used with “OPEN”

limit switch 16 Gauge, 24" 3 3 Blue wire used with “CLOSE”

limit switch 16 Gauge, 24" 3 3

AUXILIARY LIMIT SWITCH

Mini Switches and Wire Leads

FIGURE 1

FIGURE 2

FIGURE 3

AUXILIARY OPEN or CLOSE LIMIT SWITCH

AUXILIARY OPEN LIMIT SWITCH

AUXILIARY CLOSE LIMIT SWITCH

Pan Head Phillips #4-40x3/4"(2)

Long Pan Head Phillips #8-32x1/4"(2) (2 per bracket)

Nut Plate

Auxiliary Switch Mounting Bracket

Pan Head Phillips #8-32x1/4" (3)

MODELS T, GT, GH

#4 Internal Tooth Lockwasher

Backup Plate (1 per switch)

Limit Switch

Auxiliary Switch Mounting Bracket

*NOTE: Auxiliary switch components used with ”T” electrical boxes are the same as “H” electrical boxes unless otherwise noted.

MODELS H AND J

*Refer to NOTE

(C)

(NO)

(NC)

(C)

(NO)

(NC)

(C)

(NO)

(NC)

INSTALLATION INSTRUCTIONS

WARNING

COMPONENT MOUNTING:

1. Locate the new auxiliary limit switch bracket assembly with the limit switch attached and terminal block (when present).

2. Fasten the limit switch bracket down to the box using the two #8-32 x 1/2” long self tapping screws supplied (refer to component mounting illustration).

WARNING

TO AVOID SERIOUS PERSONAL INJURY OR DEATH FROM ELECTROCUTION, DISCONNECT ELECTRIC POWER TO OPERATOR BEFORE INSTALLING.

3. When Present fasten the terminal block down to the box using the two #8-32 x 5/8” long self tapping screws supplied (refer component mounting illustration).

4. If the Bracket interferes with the screws from the open and close limit switch, install the backup plates supplied, between the electrical box and the head of the csrew (Model T, GT, GH only). Refer to illustration below.

Wiring For Modification With Wire Leads:

1. Connect ends of wire leads to desired field wiring with wire nuts to complete installation (Refer to figure 2 and 3).

Wiring For Modification With Terminal Leads:

1. Connect the wires from the auxiliary limit switch to the new terminal block (Refer to figure 2 and 3).

FIGURE 1: Open or Closed Auxiliary Switch NOTE: Auxiliary limit bracket assemblies with one

switch are shipped set up for auxiliary closed. If auxiliary open is required remove auxiliary switch and flip over.

FIGURE 2: Open or Closed Auxiliary Switch

AUXILIARY OPEN/ CLOSE LIMIT SWITCH

TERMINAL BLOCK, 6 POLE (WHEN PRESENT)

NC NO

(C)

(NO)

(NC)

FIGURE 3: Open and Closed Auxiliary Switch

AUXILIARY OPEN LIMIT SWITCH

AUXILIARY CLOSE LIMIT SWITCH

TERMINAL BLOCK, 6 POLE (WHEN PRESENT)

NC NO

(C)

(NO)

(NC)

(C)

(NO)

(NC)

COMPONENT MOUNTING

(2) 1/4” LONG PAN

HEAD PHILLIPS

(2) #8-32x5/8” PAN

HEAD PHILLIPS

(2 PLACES)

#8-32 LOCK NUT

MODELS T,GT,GH

(LOW PROFILE BOX)

(2 PLACES)

AUXILIARY LIMIT SWITCH

BRACKET ASSEMBLY

10-12806 BACKUP PLATE

TERMINAL BLOCK, 3 OR 6

POLE (WHEN PRESENT)

(2) #8-32x5/8” PAN

HEAD PHILLIPS

(2 PLACES)

(2) 1/4” LONG PAN

HEAD PHILLIPS

(3 PLACES)

MODELS H & J

(CUBE BOX)