Lift-master 90 78002K User Manual

APPLICATION

This modification is available for models T, GT, J, H, GH, SD and GSD standard door operators with 24V control circuits. Not available with hazardous area or variable speed modifications.

AUXILIARY CONTACT BLOCK

WIRE AND TERMINAL BLOCK CONNECTIONS

9078002K AND 9078002KT

FUNCTIONS

Each pole provides a means to control auxiliary lights, heaters or other equipment. The contacts can be used to turn on (form A contact) or turn off (form B contact) such equipment while the door is moving. A maximum of two poles per operator may be provided, one on the OPEN side of the contactor and one on the closed side of the contactor. Each pole consists of one Form A contact and one Form B contact rated 10 amps, 250VAC.

PREPARATION

Unpack kit to verify the parts listed below are included. Refer to installation instructions on reverse side for component mounting instructions.

DESCRIPTION QTY

Auxiliary Contact Block 1 Terminal Block Label, 11-14 1 Terminal Block, 4 Pole 1 Pan Head Phillips Screw, #8-32 X 5/8" 2 Lock Nut #8-32 2 White Wire, 16" 1/4" Fork X 1/4" Fork 4

PACKING LIST K9078002KT

DESCRIPTION QTY

Auxiliary Contact Block 1 White Wire, 16" 1/4" Fork X Strip 4

PACKING LIST K9078002K

Pan Head Screw #8-32 x 5/8"

New 4 Pole Terminal Block

#8-32 Lock Nut

(2) Pan Head Phillips Self-Tapping Screws #8-32 x 1/4" (2 places)

New Auxiliary Contact Block

COMPONENT MOUNTING

1. Disconnect power to operator.

2. Determine whether the auxiliary contact block is required on the OPEN or CLOSED side of the contactor and snap in place.

3. When present, fasten the terminal block down to the box using the two #8-32 x 5/8" long self tapping screws provided (Figure 2).

WIRING FOR MODIFICATION WITH WIRE LEADS

1. Connect ends of wire leads to desired field wiring with wire nuts to complete installation (Figure 1).

2. Restore power to operator.

WIRING FOR MODIFICATION WITH TERMINAL LEADS

1. Connect the wires from the auxiliary limit switch to the new terminal block (Figure 1).

2. Restore power to operator.

FIGURE 1: AUXILIARY CONTACT BLOCK

FIGURE 2:

Auxiliary Contact Block

Terminal Block, 4 Pole (when present)

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

53NO 54NO

LA1KN

61NC

62NC