Injector Tee; Drain Cock; Water Circuit Temperature; Pipe Thermostat - Stanley Cara+ Installation And Operating Instructions Manual

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.

DRAIN COCK

To allow the central heating system to be drained a
'drain cock' should be fitted at the lowest part of the
system.

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. One radia-
tor on the heating circuit should remain uncontrolled,
this radiator will provide a heat leak and prevent the
situation where there is nowhere to discharge hot
water should the heating controls be satisfied. Be
aware that steam and boiling water will be expend-
ed 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. See Fig.17.
SECONDARY AIR CONTROL - SLIDER
When burning wood, pull the secondary air slider sit-
uated on the left hand side out fully. The air control
is a slider operation, pull to open and push to close.
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
the maximum air to the fire and will help to clean the
glass even after it has become sooty.
can be used in conjunction with the primary air but
generally the fire will perform best if the slider is
used when burning wood and the primary air control
is used when burning manufactured smokeless
fuels. These controls are hot when the appliance is
in use. Use the glove provided to operate air
controls and door handle when they are hot.
See Fig 19.
NOTE: When burning anthracite the secondary
air control must be closed.
Fig 19
Secondary
Air Slider

PRIMARY AIR CONTROL

When burning manufactured smokeless fuels, the
primary air control knob located on the right hand
side controls the primary air supply to the stove. For
maximum heat output and burn rate rotate the knob
fully in a clockwise direction. For a minimum burn
rate rotate the knob fully in an anti-clockwise
direction until fully closed. See Fig 20
12
Fig 18
This control