Tork LDS Installation And User Manual

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TORK
Lighting Delay Switch
Model: LDS, LDS-A
INSTALLATION AND USER'S GUIDE
FUNCTION & DESCRIPTION
The Lighting Delay Switch is an accessory to any
TORK maintained contact time switch and is used
to extend the lighting time after the main time
switch turns OFF a lighting circuit. An approximate
1/2 second blink will occur as a warning that the
lighting will go OFF in (user selectable) 1 or 5
minute warning period.
Remote momentary ON/OFF push button switch-
es can be connected to the designated terminal of
the Lighting Delay Switch using low voltage # 18 -
22 AWG twisted pair wires. Pressing the remote
ON button momentarily during the 1 or 5 minute
warning period (before the lights go out) will
extend the time ON for a user selectable 1/2 hour,
1 hour, 1-1/2 hour, 2 hours, 6 hours, 9 hours, or
12 hours. At the end of the extended time a warn-
ing blink will again occur, allowing personnel to
repeat another 1/2 - 12 hour extension if necessary.
Pressing the remote OFF button for 3 to 4 seconds
will terminate the extension of time, and initiate the
warning blink. The lights will turn OFF after the 1 or
5 minute warning period.
When starting up after a power failure (if time
switch is not ON), lighting will be turned ON for 10
minutes. At the end of the 10 minute period a
warning blink will occur. The lights will remain ON
for the 1 or 5 minute warning period. If an exten-
sion of time is required, press the remote ON but-
ton momentarily.
This unit is ideally suited to meet Energy
Conservation construction codes relative to con-
trolled lighting after hours and assures lighting will
go OFF after personnel (i.e. cleaning-staff working
after hours) leave the building.