not keep the “
LEARN
” button of the thermostat or the “
M/A
” button
of the receiver unit depressed without any reason after the two
units have been tuned successfully.
7.3 Transmission distance inspection
With the help of the and buttons you can check whether
the two units are within the transmission distance of the wireless
(radio-frequency) connection. In order to do so, set the desired
temperature above room temperature by more than 0.2°C, then
reduce it below room temperature by more than 0.2°C. When
detecting the ON and OFF control signals, the red LED light on the
receiver unit switches on and off, respectively. When the receiver
unit fails to receive signals sent by the thermostat, then the two
units are outside the transmission distance of the wireless (radio-
frequency) transmitter, thus they have to be placed closer to each
other.
7.4 Manual control of the receiver unit
Pressing the “
MANUAL
” button separates the thermostat from
the receiver unit, and the boiler connected to the receiver unit
can only be turned on and off manually, without any temperature
inspection. The continuously illuminated green LED indicates
“
MANUAL
” mode. Pressing the “
M/A
” button turns on or off the
boiler. (The red LED is illuminated when the boiler is turned on).
By pressing the “
MANUAL
” button again, the thermostat resumes
normal (automatic) operation (the green LED goes out).
7.5 Avoiding external impacts
Virtually no external devices (a radio, cell phone, etc.) will
exert any influence on the operation of the device. Should you
experience any operating trouble, please retune the system as
described in Section 7.2.
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