Seitron DCPA80BC, Use Instructions

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1. Test mode
This microswitch in the
lower
position enables the ‘Test’ mode. In this mode the
chronostat issues radio commands continuously for testing the communication with the
receiver. The commands toggle the relevant relay in the receiver every 3 seconds. Once
the set-up and tests are finished, set the microswitch in the
upper
position.
2. Optimization
The optimization function gives the chance to turn the heating on with a time advance
with respect to the programmed time so that the user will actually have the desired
temperature (that is the set one) at the programmed time. Actually the chronostat
measures the time the environment needs to get to the desired temperature and,
consequently, anticipates the programmed turn on by the time needed to get to this goal.
The optimization can be activated by moving a microswitch located on the thermostat
back: the time advance is calculated with respect to the average temperature gradient in
the last 24 hours, with a maximum of 60 minutes time advance.
3. Time proportional operation
By moving this microswitch located on the rear of the chronostat the user can switch
between the standard operation (on-off with an asymmetrical 0.2°C differential) and a
time proportional operation with a band and intervention times that fit the most of civil
environments.
4. Internal - External sensor selection
By moving this microswitch located on the rear of the chronostat the user can select as a
reference sensor for the regulation either the internal sensor or the external (remote) one.
Batteries replacement
When on the display appears the ‘ ‘ symbol, batteries must be replaced.
In order to perform this operation proceed as:
1. Open the plastic door covering the batteries.
2. Remove old batteries with the help of a small tool.
3. Place the new AA 1.5V batteries within 2 minutes after removing the flat batteries; after
a two-minute period has elapsed check and/or reset the central heating timer.
4. If the central heating timer seems to be malfunctioning, reset it by pushing the button
(7); in this case all preset data are lost.