15
HSB Boiler Stove
INTEGRAL BOILERS
Integral boilers should be connected with flow
and return connections of any circuit on opposite
sides of the appliance, (cross flowed), to indirect
hot water tank/system, adding Fernox or similar
corrosion inhibitor to prevent corrosion and
formation of lime scale.
It is also essential that the water temperature
remains in excess of 45° centigrade (Celsius).
The gravity circuit return should be fitted with a
pipe thermostat, which will activate a cut-out on
the radiator circulating pump, should the
temperature fall below this level. (45°C)
Connecting pipe work to the boiler unit.
The connected pipes should be screwed to a
maximum depth of 19mm from the face of the
tapping boss, (1” BSP, parallel).
Steel integral boilers should only be connected to
an indirect hot water tank system
Note:
The flow and return sections of any circuit
must always be opposite to the appliance.
Remember to incorporate a draining plug/tap
at the lowest point to facilitate draining and
flushing.
Warning: If a pipe-stat is not fitted to control
the radiator circulation pump then cold water
corrosion can occur.
FAILURE TO COMPLY WITH THESE
REQUIREMENTS WILL INVALIDATE THE
GUARANTEE.
CHECKING THE THERMOSTAT AND
PRE-SETTING TO THE CORRECT
DAMPER PRESSURES
PLEASE NOTE:
The thermostat has been fitted and set correctly
during manufacturing. However it is advisable to
check the cold setting prior to lighting the fire for
the first time after installation.
With the control knob set fully clockwise (past
No.5) the circular damper plate should have a
gap of approximately 29mm between the damper
edge and the stove inner body face, measured at
the furthest point from the control knob and in line
with the actuation shaft. Take care to measure
this gap parallel to the actuation arm centre line.
If this is not the case follow the procedure as
detailed in the maintenance section on page 23.
CLEANING AROUND THE THERMOSTAT
For cleaning around the thermostat and removal
of ash build up see:-
Maintenance section page 27.
It is important to regularly clean around the
damper to avoid an ash build up to maintain
proper control of the burn rate.
INSTALLATION
Air inlet control thermostat
Easy Boost Start air inlet
