Installation And Location - ELEKTROBOCK PT52 Manual

PT52 is intended for controlling gas and electric boilers which use the OpenTherm Plus (OT+) communi-
cation protocol. Its great advantages are the backlit display and navigation in CZ/PL/EN/DE/RU.
Backlit display
After you press any button, the display is backlit automatically for at
least 5 s (activated within 30 min after connecting the OT line).
Install the thermostat at a suitable place where its operation will not be affected by direct fl ow of hot air
from a heating source, by sunshine or other disturbing effects. Do not install it on an external wall either.
The installation height should be at least 1.5 m above the ground. Locate the thermostat in the so-called
reference room, such as the living room (the heat source will be switched according to the temperature
in this room).
The installation can only be done by a person with adequate qualifi cation! Before
1) Remove the control part from the bottom cover of the device (Fig. 1, page 3).
2) Chip off the plastic piece in the middle of the bottom cover to lead in the conductors.
3) Run the conductors through the hole and connect them to the terminal board acc. to the diagram.
4) Fasten the bottom cover to the wiring box by means of screws (Fig. 2, page 3).
5) Mount the control part onto the bottom cover.
6) Upon the fi rst start (or reset), the thermostat shows the "SET TIME" message; set the current
time and date acc. to the instructions on page 5.
7) To change the navigation menu language, follow page 8 (Czech set by default).
8) Ask the boiler manufacturer, whether it communicates by means of the standard OpenTherm Plus
protocol
(for the Thermona, Ferolli and Viessmann boilers, change the constant No. 26, see page 13).
Wiring diagram:
OpenTherm communication line,
max. length of 50 m, no polarity
2
DESCRIPTION
MENU

INSTALLATION AND LOCATION

installation, disconnect the power supply!
PT52
turning
= change of temperature setting
short press
= selection (entry) confi rmation
= quick change of required
temperature or program (see page 3);
viewing other information (see page 4)
long press
= step back (only in the CONST mode,
page 8)
press
= opening the main menu or returning
a step back
BOILER
*
Controls
*
The OpenTherm
communication terminals
are marked differently
with every boiler type;
therefore, observe the
electric connection
recommended by the
boiler manufacturer!