Injector Tee; Water Circuit Temperature; Pipe Thermostat; Handover - Stanley Lismore Installation And Operating Instructions Manual

There must be no gate valves on this circuit and it
must have an expansion pipe exhausting to
atmosphere. Cylinder and pipe work should be
lagged to minimise heat loss.
This diagram illustrates the basic principal of water
heating systems and must not be regarded as a
working drawing.

Pipe Thermostat

Injector Tee

Pump
INJECTOR TEE
Where the gravity and central heating circuits join
together to return to the stove we recommend the
use of an injector tee connection, situated as close
to the unit as possible. This type of tee encourages
a stable flow of hot water through both circuits and
helps to prevent priority being given to the stronger
flow, which is most commonly the pumped central
heating circuit. This way, there will be no shortage
of hot water to the taps when the heating is on.

WATER CIRCuIT TEMPERATuRE

The return water temperature should be maintained
at not less than 40°C so as to avoid condensation on
the boiler and return piping. Fitting a pipe thermo-
stat to the flow pipe of the gravity circuit and wiring it
into the pump control will ensure rapid circulation of
the hot water.
In some circumstances it may be possible to over-
heat the appliance and the water inside will boil.
This will be evident by the sound of a knocking noise
coming from the appliance and pipes around the
house. If this occurs close off all air controls and
manually start the central heating pump if fitted.
One radiator on the heating circuit should be uncon-
trolled to act as a heat leak in the event that the
appliance overheats and has nowhere to discharge
a build up of hot water should the heating circuit be
satisfied. Be aware that steam and boiling water will
be expended from any open vent from the heating
system probably in the roof space at the expansion
tank.
In the unlikely event that the appliance is not oper-
ating in freezing conditions the water must be
drained from the boiler to prevent frost damage.
PIPE THERMOSTAT
Fig.9
The fitting of a pipe thermostat to the flow pipe is
essential in order to activate the water circulation
pump when the water reaches the selected
temperature.
When the water temperature falls below the select-
ed temperature the pipe thermostat will cut off the
water circulation pump in order to allow the boiler to
recover.
Fig.10

HANDOVER

On completion of the installation allow a suitable
period of time for any fire cement and mortar to dry
out, when a small fire may be lit and checked to
ensure the smoke and fumes are taken from the
stove up the chimney and emitted safely to the
atmosphere. Do not run at full output for at least 24
hours.
Ensure that the operating instructions for the stove
are left with the customer. Ensure to advise the cus-
tomer 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 what to do should smoke or fumes
be emitted from the stove. The customer should be
warned to use a fireguard to BS 6539 in the pres-
ence of children, aged and/or infirm persons.
10