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9.3 Activating the delayed start of the boiler function
When designing the heating zones,
in order the protect the pump of
the boiler, it is reasonable to leave
at least one heating circuit without
a zone valve (e.g. the bathroom
circuit). In such a heating system,
after the boiler is started, the heating
water can freely circulate through
the circuit(s) without a zone valve
until the zone valves are opened (the
opening time of an electro-thermal
actuator is approximately 4 minutes). If the heating system was not designed
as described above, it is reasonable to activate the delayed start of the boiler
function in order the protect the pump of the boiler. If this function is activated,
then the boiler starts only 4 minutes after the receipt of the heating command,
when the zone valves are already opened. Under the factory default settings,
this function is inactive. It can be activated at the back side of the receiver unit,
by relocating the jumper (black plug) with the “
DELAY
” sign. It is inactive in the
“
OFF
” position and active in the “
ON
” position of the jumper.
9.4 Transmission distance inspection
With the help of the “
TEST
” button of the thermostats you can check whether
the selected thermostat and the receiver unit are within the transmission
distance of the radio-frequency connection. To perform the test, press the
“
TEST
” button for approximately 2 seconds. Following this, the thermostat will
send, alternating every 5 seconds, switch-on and switch-off control signals to
the receiver for 2 minutes (the
signal appears and disappears alternately
on the display). When detecting the
ON
and
OFF
control signals, the red LED
light associated with the thermostat on the receiver unit switches on and off,
respectively. When the receiver unit fails to receive signals sent by the thermostat,
then the receiver unit is outside the transmission distance of the wireless (radio-
frequency) transmitter, thus they have to be placed closer to each other.
9.5 Manual control of the receiver unit
Pressing the “
A/M
” button separates the thermostats from the receiver unit.
In this case, the boiler or air conditioner connected to the receiver unit can
only be turned on and off manually, without any temperature inspection. The
continuously illuminated blue LED indicates automatic (thermostat-controlled)
mode, while its switched off state indicates manual mode. In manual mode,
pressing the
1, 2, 3,
and/or
4
buttons of the receiver unit turns on or off
the boiler (or air conditioner) and opens/closes the zone valves associated
with the heating zones. The operation of a heating zone is indicated by the
illuminated red LED light associated with it. By pressing the “
A/M
” button
again, the device quits manual control and resumes automatic (thermostat-
controlled) operation, which is indicated by the illuminated blue LED light.
