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

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16
Receiver
Comfort II– 6720810965 (2014/07)
6Receiver
The Receiver is paired with the Programmable room
thermostat and they communicate via an RF signal. The
Receiver unit has an Override/Pairing push button and a LED to
indicate various sates of operation.
6.1 Override push button
If the RF signal between the Receiver and the Programmable
room thermostat is lost the LED, on the Receiver, will flash once
a second, indicating a local error (not a boiler fault).
During this time, the override push button can be briefly
pressed once (less than 3 seconds) to override the
Programmable room thermostat and maintain the boiler
function for heating and hot water.
During override the LED will be on but will flash off briefly to
indicate an override situation.
Press the override push button again briefly, to cancel the
override feature.
6.2 Pairing/Unpairing
If a unit becomes faulty and has to be replaced, then both units
will need to be unpaired. The replacement unit, when fitted,
and the original unit will need to be paired together.
Once the Programmer is in the unpairing mode, press the
override push button on the Receiver for more than 10 seconds
to put the Receiver in the unpairing mode.
The LED will flash five quarter second flashes at he beginning of
a five second period to indicate the unpairing function.
When the faulty unit has been unpaired, the replacement unit
can be fitted and paired with the Receiver.
Once the Programmer is in the pairing mode, press the Pairing
button [2] on the Receiver for more than five seconds but less
than 10 to enter the pairing mode. The LED [1] with flash two
quarter second flashes at the beginning of a five second period
to indicate the pairing function.
Fig. 16 Receiver
[1] LED (for flash codes refer to the table below)
[2] Override button/Pairing button
The Programmable room thermostat and
Receiver are delivered together and are
factory paired, they will automatically
connect when the system is switched on.
If the units have to be paired, all units must be
in the pairing mode to be connected, refer to
section 5.2 Radio settings for putting the
Programmable room thermostat into the mode.
Green indicator LED Indicates the status:
Normal
operation
OFF No central heating zone is
calling for heat
ON One or more zones calling for
heat
Manual
override
Flashing off, for
¼ second over a 2
second period
Manual override is active
Pairing
modes
2 x ¼ second flashes
over 5 a sec. period
Pairing in operation
5 x ¼ second flashes
over 5 a sec. period
Unpairing in operation
Push
button
Press for >5 seconds
for pairing
Press for >10 sec. for
unpairing
Pairing or unpairing the
Receiver with the
Programmable room
thermostat(s)
Press once, briefly, for
override, press again
for no override
Manually switching the boiler
ON or OFF
Table 1 Receiver LED flash codes
6720810965-15.1Wo
1
2
… 16 …


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