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OPERATING THE BOILER
WORCESTER BOSCH GREENSTAR 24i/28i Junior
8 716 115 661 (05/2009)
7
OPERATING THE BOILER
USING YOUR
BOILER
SWITCHING THE BOILER ON/OFF
Switching on
Switch on the boiler at the mains supply,
the indicator light shows blue. There
should be no need to switch the boiler off
unless, in the unlikely event, a fault has
occurred.
Switching off
Should you need to switch off the boiler
then do so at the mains supply.
The blue
indicator light goes out.
NOTE: When the boiler is switched off
frost protection is disabled.
SETTING THE TEMPERATURE
Turn the temperature control knob to
the desired level, approximate
temperatures for each setting are shown
in the table opposite.
When the burner is lit, the green burner
on indicator light is illuminated.
CONTROLLING CENTRAL HEATING
Set the timer to the correct time.
Set room thermostat to the desired
room temperature.
Set the thermostatic radiator valves to
the desired settings.
FROST PROTECTION
In the event where the boiler is not to be
used for a period of time, leave power on
and turn the temperature control to .
If the temperature falls below 5°C within
the boiler it will periodically fire to avoid
the possibility of freezing.
If remote pipework is exposed to
low temperatures, ensure that the
installer has added a frost
thermostat.
Min ---
40°C
1 ---
47°C
2 ---
53°C
3 ---
61°C
4 ---
68°C
5 ---
74°C
6 ---
80°C
Max ---
82°C