Horstmann ChannelPlus H17XL Series 2 User Operating Instructions Manual page 5

With the ChannelPlus H17XL Series 2 timeswitch operating in the normal running mode
it is possible to alter the functionality of the programme by means of the blue 'select'
buttons under the front flap.
The options include;
AUTO - Timeswitch output follows all programmed 'ON' and 'OFF' times.
ALL DAY - Timeswitch output operates from 1st 'ON' time until 3rd 'OFF',
ignoring all switching times in between.
ON - Timeswitch output will be constantly 'ON'.
OFF - Timeswitch output will be constantly 'OFF', there is the ability to turn off
heating during summer without altering the programme times.
1 or 2 hour boost still available.
All of the settings above will be permanent, i.e. unaffected by programme times, until
alteration by the user.
The diagram below illustrates how to alter the setting, it assumes that the timeswitch is in
the AUTO mode to begin with.
Press SELECT
once.
Programme
goes from
AUTO to
ALL DAY
Timeswitch
will operate
from first ON
until last OFF
period
Programme Override Facilities
Press SELECT
again.

Programme
goes from
ALL DAY to
ON
Timeswitch
will be
continuously
ON
Press SELECT
again.

Programme
goes from
ON to OFF
Timeswitch
will be
continuously
OFF
Press SELECT
again.

Programme
goes from
OFF to AUTO
Programme
will return
to normal
ON and OFF
times
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