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Worcester-Bosch Greenstar Junior i Manual

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GLOSSARY
6 720 802 048 (2013/05)
12 GLOSSARY
Central heating systems
All radiators must be heated at an even rate. If the top of a radiator is at a lower temperature than the bottom then it should be vented
by releasing air through the venting screw at the top of the radiator. Ask your installer to show you how this is done.
This boiler is fitted to a sealed system. Should water leaks be found or if excessive venting is required, then a service engineer must
be contacted to inspect the installation and rectify any fault.
Only additives that are compatible with aluminium may be used in the system. Any incompatible additive used will invalidate the
guarantee.
Pluming and Condensate drain
This is a condensing boiler and the flue terminal will, at times give out a plume of water vapour. This is quite normal.
The boiler produces condensate which is discharged regularly by a syphon within the boiler via a plastic pipe to a drain. This pipe
must not be blocked or altered in any way.
Room thermostat / programmer
A room thermostat / programmer must be fitted to control the central heating. This controls the times and temperatures of the
central heating, preventing the boiler from firing unnecessarily. Refer to the instructions supplied with the thermostat and
programmer for further information.
Thermostatic radiator valves
Thermostatic radiator valves must be fitted in sleeping accommodation. It is recommended that this type of valve is fitted to all but
one of the radiators. The remaining radiator, where the room thermostat is located, must be uncontrolled and left open.
Pump over run function
After the boiler has finished a demand for central heating or hot water, the pump continues to run for three minutes to dissipate the
heat from within the boiler.
Pump anti-seizure
If there has been no heating demand for 24 hours the boiler will run the system pump for a few seconds to reduce the possibility of
pump seizure during long periods of inactivity.
SEDBUK
Seasonal Efficiency of Domestic Boilers in the UK.
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