Glossary - Worcester GREENSTAR CDi CLASSIC SYSTEM User Instructions

Glossary

9 GLOSSARY
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.
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.
PUMP OVER RUN FUNCTION
After the boiler has finished a demand for central heating or hot
water, the pump may continue to run for a short while to
dissipate the heat from within the boiler.
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.
SEDBUK
Seasonal Efficiency of Domestic Boilers in the UK.
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.
GREENSTAR CDi CLASSIC SYSTEM – 6 720 812 178 (2014/07) 19