14
adjust the high fire screw by half a turn in and try
turning the fuel flow up, if it is still fuel rich repeat
the process until the hire fire flame is running blue
with flicks of yellow in the tips.
If the burner does not run well check that the seals in
the stove are good and that there is no ingress of air
into the stove flue ways.
Seals in stove mean:
The pot to closure plate seal.
The door seal.
Check that the correct fuel oil is being used.
8
8
.
.
F
F
A
A
U
U
L
L
T
T
F
F
I
I
N
N
D
D
I
I
N
N
G
G
H
H
E
E
A
A
T
T
I
I
N
N
G
G
S
S
Y
Y
S
S
T
T
E
E
M
M
If the system does not perform well check the
following-:
THE CIRCUIT DESIGN.
AIR LOCKED CIRCULATING PUMP.
AIR LOCKED SYSTEM PIPEWORK.
INADEQUATE SYSTEM PRESSURE HEAD.
INOPERATIVE CIRCULATING PUMP.
INADEQUATE PIPE SIZEING.
INADEQUATE CALORIFYER DESIGN.
INADEQUATE STOVE LOCATION.
The stove is fitted out of level, allowing an air pocket
to build up in the top of the boiler, causing subsequent
kettling and damage to thermostat sensing phial
FLOW OF WATER THROUGH THE BOILER.
WATER THROUGH THE CALORIFYER.
FLOW OF WATER THROUGH THE RADIATORS.
THE SYSTEM IS NOT OVER PUMPING.
LACK OF SAFETY VALVES.
FEED AND EXPANSION
Is it fitted in the correct place?
9
9
.
.
F
F
A
A
U
U
L
L
T
T
F
F
I
I
N
N
D
D
I
I
N
N
G
G
BURNER
C
C
O
O
M
M
B
B
U
U
S
S
T
T
I
I
O
O
N
N
1. RACING.
1. Audible vibrations generated by the flame caused
allowing by too much oil in the pot, too quickly.
1-1. Turn off the oil flow until the burner has settled
down to a steady burn rate and then turn the fuel on
again but don’t let the flame go out otherwise the
burner MUST be allowed to cool down fully before a re
ignition is attempted.
2. FLUE VACUUM.
1. The pot type burner is extremely sensitive to flue
vacuum variations.
2. Good combustion will not be possible unless our
instructions on chimneys and flue vacuum are followed.
3. If the burner does not burn with a blue flame,
recheck the chimney vacuum and oil flow rate.
4. If the burner does not run well check that the seals
in the stove are good and that there is no ingress of
air into the stove flue ways.
5. Check that the correct fuel oil is being used.
6. Check the levels.
3. BURNER RUNS SOOTY.
Comments made on this subject assume that the stove
has been running normally for some time.
If the stove soot’s up this indicates that there is not
adequate air for blue flame combustion or there is an
excess of fuel.
Check that the chimney is working correctly. (This
means pulling enough air into the burner to allow
correct blue flame combustion to occur.
Check that the fuel is the correct type and quality.
Check that the flow rates are correct.
Where burners are run at high fuel flow rates on low
chimney vacuums, long unsatisfactory yellow flame
combustion and bad sooting will occur.
To rectify this problem reduce the high fire flow rate
screw on the Oil Control Valve until blue flame
combustion occurs.
Never switch from low settings to high settings; a
longer burner life will be achieved if the regulator is