Green Stoves 10KW Manuel d'installation et d'utilisation - Page 10
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On heating and hot water installations, a semi-pumped system should be used to the central heating system with
gravity circulation to the hot water cylinder. For optimum performance of the boiler we recommend that all 4
tappings are used when using separate gravity and pumped heating loops. The flow and return pipes should be
taken from diagonally opposite sides of boiler.
Injector Tee:
If only two tappings are used on a common flow system, they should be taken diagonally opposite and the
remaining tappings should be plugged. An injector Tee should be fitted to join the gravity feed and central
heating circuits back to the stove, which should be situated as close to the stove as possible. The tee connection
encourages the stable flow of water through both circuits and prevents priority being given to the stronger flow,
typically the pumped circuit.
Pipe Thermostats
A HIGH LIMIT thermostat should be fitted to the gravity flow pipe close to the boiler and set at 90°C.This
should override any pump control, switching the pump on and dissipating any excess heat around the radiator
circuit. To prevent boiler corrosion due to condensation it is necessary to maintain the return water temperature
above 45°C. This can be achieved by the use of a LOWLIMIT thermostat on the return pipe from the hot water
cylinder, close to the boiler. The thermostat should make on temperature rise, preventing the circulating pump
from operating until the gravity circuit is up to temperature
Commissioning and Handover
Upon completion of the installation, allow a suitable period of time for any fire cement and mortar to dry out. A
small fire may then be lit and checked to ensure the smoke and fumes are taken from the stove up the chimney
and emitted safely to atmosphere. Do not run the stove at full output for at least 3 – 4 days.
On completion of the installation and commissioning, ensure that the operating instructions and operating tools
for the stove are left with the customer. Ensure to advise the customer on the correct use of the appliance with
the fuels likely to be used on the stove and warn them to use only the recommended fuels for the stove.
Advise the user on what to do should smoke or fumes be emitted from the stove. The user should use a suitable
fireguard in the presence of children, aged and/or infirm persons.
All connections to the boiler should be checked to ensure there are no leaks during operation and that the flow
and return water connections are working properly. The stove should be fired up initially by the Plumber /
Heating Engineer to ensure that it is operating safely with the rest of the heating system.
.