ELEKTROBOCK PT21 Operating Instructions Manual page 2

ROOM THERMOSTAT PT21
PT21 is a Czech product that offers a wide range of application for tempera-
ture regulation in households, offices or workshops. It is designed in such
way, so that it meets high standard of required functions and simultaneously
easy handling is maintained.
Setting the hysteresis in the range from 0.1°C to 2°C represents a great advantage.
By using the digital thermostat, you can significantly save the energy necessary for heating
and simultaneously to keep optimal thermal comfort. Thanks to rich programming features
(up to 6 time intervals and temperatures for each day) you can define program suiting to
your needs.
For example:
We get up at 6:00 in the morning, so we select the temperature of 19°C.
We leave the house for work at 8:00 so the temperature can be lower: 17°C.
Family members return home at 14:00, they need warmth, so we set the
temperature to 20°C.
We want to watch TV in the evening and have pleasant warmth, so we set next
interval for 19:00: 24°C.
We are ready to go to bed on 22:00, so the temperature of 18°C is sufficient.
It is dealing with a model of daily temperature regime using 5 time intervals.
Switch functions: (from left side)
1. AUT : the thermostat works according to program as set
advance.
in
2. MAN : serves for manual setting of temperature, the temperature
should be constant up to next change. Symbol "
showed on the display.
3. HOD : setting of present day and time
When you set the switch into HOD position, time is shown on
the display and indication of clock is blinking.
By means of "+/-" buttons set required data, confirm by
pressing " i "(register).
Use the same procedure for setting the minutes, seconds and
day (the day is indicated by "
4. PROG : position for programming
How to proceed during programming:
PT21 enables to set 6 temperature intervals for one day and also the
HYSTERESIS in the range from 0.1°C to 1.5°C.
OPERATING INSTRUCTIONS
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