Worcester Bosch GREENSTAR 25SI Quick User Manual

THIS INFORMATION IS FROM THE MANUAL LEFT WITH YOUR NEW SYSTEM,

SWITCHING THE BOILER ON/OFF

Switching on
Switch on the boiler by pressing the main power
button. The indicator light shows
Switching off
Turn the temperature control knob to the
snowflake symbol to switch off the central
heating

BOILER FROST PROTECTION

If the temperature within the boiler falls below 8°C
the pump will run to circulate water and prevent
the system freezing. If the temperature within the boiler falls below 5°C the boiler will
fire periodically, bringing the boiler temperature up to 12°C to avoid the possibility of the
system freezing.

SETTING TEMPERATURE FOR YOUR HEATING

Turn the temperature control knob to the
desired level. This is the temperature the
boiler will heat the radiator water to. The
control knob should generally be set to 4
or 5. Lower for smaller homes, higher for
larger homes. Set your room thermostat for
room temperature

SETTING TEMPERATURE FOR YOUR HOT WATER

The hot water temperature can be set to between
approximately 40°C and 60°C using the temperature
control. The minimum on the dial is 40° the maximum is
60°C The optimum setting is 4 which is 53°C.
Greenstar 25SI / 30SI - Quick User Guide
PLEASE REFER TO THIS FOR MORE INFORMATION
4. Mains on / off indicator and fault diagnostic light
6. Eco button (Domestic hot water preheat on/off)
blue
1. Master switch for on / off
2. Central heating temperature control
3. Domestic hot water temperature control
5. Burner on indicator light
7. Fault reset button
8. System pressure gauge
9.Position for optional programmer
(green)
RADIATOR -
WATER TEMP
Min---40°C
1 --- 47°C
2--- 53°C
3--- 61°C
4--- 68°C
5--- 74°C
6--- 80°C
Max---82°C