FLUE SPILLAGE MONITORING SYSTEM
This fire is fitted with a flue spillage safety device (ODS). If the fire shuts down during use for no apparent reason
then several things may be suspected. If a door or window has been opened creating a draught, then pilot
disturbance is the problem, and removal of the draught should resolve this. If a grommet seal has been left out
of the firebox then this also will also cause intermittent shutdown (recall your installer to fit). The gas pressure
reaching the fire must also be checked (again, recall your installer to check and rectify any problem). The
thermocouple connection into the back of the gas control valve may also have worked loose during installation,
simply get the installer to tighten.
If pilot disturbance is not the cause, then the ODS safety system may be in operation. Switch the appliance OFF,
check the flue and carry out any remedial work required. Relight the fire and carry out a spillage test. DO NOT
allow the appliance to be used if it continues to fail a spillage test.
The aeration hole of the pilot must be carefully cleaned out on each annual service to ensure continued function
of the ODS.
The spillage monitoring system shall not be adjusted, modified, or put out of operation by the installer. Any spare
parts fitted MUST be of a type supplied for the purpose by the appliance manufacturer.
If the fire is not spilling, then further guidance should be sought, using the Troubleshooting section as a guide.
TESTING FOR SPILLAGE
Close all doors and windows to the room containing the appliance. Let the fire run on HIGH for five minutes.
Take a smoke match, light it, and using a smoke match tube, hold it at the top edge of the fire opening, 25mm
down and 25mm in. Starting 50mm in from either side, run the smoke match across the opening. All the smoke
should be drawn away up the flue. Any smoke returning
into the room indicates that spillage is occurring. If the
initial spillage test fails, run the fire for a further 10
minutes and repeat the test. When the test has been
completed satisfactorily, repeat with any extractor fans in
the premises running on the highest setting, and any
communicating doors open. Finally, repeat with all doors
open.
NOTE: If spillage is still indicated after undertaking all of
the above, there may be a fault in the flue, or insufficient
ventilation is present.
If the problem cannot be rectified immediately, then expert advice should be sought. Inform the user, disconnect
the fire, and attach an explanatory label.
12
C
C
B
A
Firebox Opening
Smoke Match
In Tube
Match
Crimp
Tube
Cross section of smoke match tube
Make a smoke match tube from 10mm
diameter tube. Seal off one end and crimp
the tube to prevent the smoke match from
sliding down inside.
A.25mm down
from top of
opening
B. 25mm in
from front of
opening.
C. Disregard
outer 50mm
either side of
f i r e p l a c e
opening
14.5
14.6
