Timeguard TRT039N Installation & Operating Instructions Manual page 16

11.9 The advance button can also be used for the opposite, e.g. if a
programme is due to switch OFF at 22:00, pressing the advance button
would switch OFF the programme ahead of time. This would result
in the unit displaying the next programme ON time which in this case
would be 06:00.
Over-Ride
11.10 Over-Ride includes 4 different functions, all day, ON, OFF and AUTO.
11.11 If set to all day, the output will be switched ON from the first ON time
11.12 If set to ON, the output will be switched ON permanently
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11.13 If set to OFF, the output will be switched OFF permanently
11.14 If set to AUTO, programmed periods will run as normal as they have
Each function can be selected by pressing the over-ride button
assigned to the channel you require to override.
until the third programme OFF time scheduled for that day has been
reached for the selected channel.
for that channel.
for that channel.
been set to for the current day.