Page 18
BK 680 Specific
ECOBOILER Cassette Installation Guide
7.2 Removal of the thermostat
The thermostat and damper flap have been factory set during manufacture.
However, over a period of time, it may be necessary to calibrate or check the
setting of the thermostat assembly.
Follow the steps on removal of ash from damper & thermostat
, then -
At the rear of the firebox, locate the 3 no. fixings for the grate bar
support (GBS) using a 10mm socket and extension, remove the fixings
and GBS, retain the fixings for re-fitting.
Lift out the air duct from the rear RH side of the firebox.
Open the control door and locate the two dome headed screws. Using a
3mm hex key, remove these fixings and retain for re-fitting (FIG. 7).
Remove the thermostat knob, by releasing the grub screw by using a
2mm hex key (NOTE: DO NOT REMOVE SCREW). Pull on the knob
and remove from the shaft.
From inside the firebox push the air box towards to rear of the
appliance, this will disengage the retaining brackets, you will then be
able to lift the front (you may need to rotate the air control lever to clear
the slot within the stove body). With draw the air box at approx. 45
degrees through the door aperture.
Once the air box has been removed, this will expose the thermostat
fixings (2 no.), remove using a 8mm spanner or socket (FIG. 8.)
On the right of the thermostat assembly towards the front of the stove,
remove the sensor wire cover plate again using an 8mm spanner, for
the 2 no. screws (FIG. 8).
Outside of the firebox, RIGHT hand side of the stove, remove the 2 no.
fixings that hold the outer side spacer trim, using a Pozi screwdriver.
(FIG. 8.)
Removing this trim will reveal the sensor phile, located close to the top
boiler connection terminal. Remove the sensor from the location tube
and carefully thread the sensor and connection wire through the corner
of the body. NOTE : TAKE CARE NOT TO KINK SENSOR WIRE.
(FIG. 10.)
The thermostat and damper assembly can now be removed.