Injector Tee; Water Circuit Temperature; Pipe Thermostat; Secondary Air Control Slider - Stanley Cara Installation And Operating Instructions Manual

Fig.16

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 water through both circuits and
helps to prevent priority being given to the stronger
flow, which is most commonly the pumped central
heating circuit.

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

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.17
SECONdARY AIR CONTROL - SLIdER
When burning wood, push the secondary air slider
situated on the left hand side of the door to the bot-
tom of the slot. The air control is a slider operation,
push the slider to the top of the slot for fully closed
and to the bottom for fully open.
The control can be gradually moved between fully
open and fully closed for the desired setting. Fully
open will be the hottest setting, as this will provide
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