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Worcester-Bosch Greenstar Comfort II RF - 2014-2022 Manual

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Operation
Comfort II– 6720810965 (2014/07)
The Programmable room thermostat will display the current
room temperature.
3.4 Pairing/Unpairing the units
3.4.1 Programmable room thermostat - Installer menu -
Radio settings - Pairing/Unpairing mode
The Programmable room thermostat Pairing/Unpairing
function is found under the Installer menu, in Radio settings
and Pair.
To enter the Installer menu, press the menu button and return
button for more than three seconds.
Six icons are shown across the top of the display:
1. Heating
2. Hot water
3. Holiday
4. Info
5. Settings
6. Installer setting
Turn the knob to select the Installer icon and press the
knob to enter the function.
▶ Turn the knob to select Radio settings
▶ Press the knob to display Pairing, that is RF pairing of the
devices in the system
▶ Turn the knob to display Unpairing or Pairing
▶If Pairing is chosen, press the knob and pairing is displayed
with advancing dashes, when the pairing is completed a
number is displayed confirming the number of
Programmable room thermostats connected, typically one
unit.
▶If Unpairing is chosen, press the knob and Unpairing is
displayed with advancing dashes, when the unpairing is
completed a 0 is displayed confirming that the
Programmable room thermostat has been disconnected
3.4.2 Receiver - Pair/Unpair
With the Programmable room thermostat in the pairing mode,
press the override push button on the Receiver for more than
five seconds but less than 10 to enter the pairing mode. The
LED with flash two quarter second flashes at the beginning of a
five second period to indicate the pairing function.
With the Programmable room thermostat in the unpairing
mode, press the override push button on the Receiver for more
than 10 seconds to enter the unpairing mode. The LED will
flash five quarter second flashes at he beginning of a five
second period to indicate the unpairing function.
4Operation
The Programmable room thermostat is supplied with factory
set default CH times and temperature periods and DHW ON and
OFF times that are shown in the table below. These settings can
be reset according to the homeowner’s requirements via the
User menu function on the Programmable room thermostat,
section 5.1. The times and temperatures can be reset to the
factory setting via the User menu section 5.1.5. Settings -
Reset all.
4.1 Normal operation
During normal operation the display shows:
• current room temperature
• the operational modes of the central heating and hot water
• the current time and day, with am or pm for the 12 hour
time format are displayed when the screen is back lit, but
are not displayed when the screen dims after 20 seconds of
inactivity
Low battery
A battery symbol indicates the batteries require replacing,
refer to section 9.1
Burner ON indicator
The symbol is shown when the boiler is firing and heating up,
there can be up to a six minute delay between the boiler
indication and the programmer display.
Low RF signal strength
The A21 fault code indicates no RF signal, refer to section 5.2
Installer/Radio settings and section 6.2 Pairing/Unpairing.
Set the current time and date
▶ Hold the menu button down for more than
3 seconds to enter the user menu, turn the
knob to select Settings and press to enter
▶ Refer to section 5.1.5 Settings - Time/
Date for setting the Time and Date, and
clock format
The Programmable room thermostat and
Receiver are delivered together and are
factory paired, they automatically connect
when the system is switched on. There is no
need to pair/unpair the units during
installation, unless there is a problem with
one or both the units.
If a faulty unit is replaced with a new unit, then
the existing unit must be unpaired before the
two units can be paired.
If the units have to be paired/unpaired, all units
must be in the same pairing/unpairing mode.
06:30 08:30 16:30 22:30
CH 1st 2nd 3rd 4th
CH TEMP 20 °C 16 °C 21 °C 10 °C
DHW ON OFF ON OFF
… 8 …


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