Chaffoteaux & Maury Britony Combi SE Manual

MAINTENANCE AND
SERVICE GUIDE
Fanned Flue Combination Boiler
Heating and Instantaneous Domestic HotWater
Dimensions
Technical data
Heat input C/H & DHW Combi 80 : 11.73 to 28.70 kW
Gross Combi 100 : 15.43 to 34.5 kW
Heat output C/H & DHW Combi 80 : 9.5 to 24 kW
Gross Combi 100 : 12.5 to 28 kW
Max. operating pressure C/H circuit : 2.5 bar
Expansion vessel net capacity : 5.44 l
Expansion vessel initial pressure : 0.7 bar
Electrical consumption : 150 w Max 3.4 w Min
Voltage : 220-240 v
Electrical protection index : IP44
Fuses : 2 A and 1.25 A
DHW flow rate at @ 30°C Combi 80 : 11.4 l/min
Combi 100 : 13.4 l/min
DHW flow rate at @ 35°C Combi 80 : 9.85 l/min
Combi 100 : 11.48 l/min
Minimum DHW operating flow rate : 2 l/min
Minimum DHW working pressure : 0.5 bar
Maximum DHW working pressure : 10 bar
Gas category : II 2H 3+
Nominal gas flow rate at 15°C and 1013 mbar BRITONY Combi SE 80 BRITONY Combi SE 100
Maximum Minimum Maximum Minimum
power 24 kW power 9.5 kW power 28 kW power 12.5 kW
- Natural gas ( G 20) at 20 mbar 2.74 m3/h 1.22 m3/h 3.34 m3/h 1.57 m3/h
- Butane gas ( G 30) at 28 mbar 2.04 kg/h 0.91 kg/h 2.45 kg/h 1.17 kg/h
- Propane gas ( G 31) at 37 mbar 2.00 kg/h 0.89 kg/h 2.42 kg/h 1.15 kg/h
Injectors and gas valves seat diameter BRITONY Combi SE 80 BRITONY Combi SE 100
Natural gas Butane or Propane Natural gas Butane or Propane
- Solenoid restrictor diameter 2.60 mm 1.75 mm 2.90 mm 2.00 mm
- Gas valve restrictor diameter 6.70 mm 4.90 mm no resrictor required 6.70 mm
- Manifold injectors (16) 1.23 mm 0.70 mm 1.26 mm 0.76 mm
54 54 54 54
JKLMN I
88
JK
LMN
232
235
32
ISafety valve outlet
JHeating flow
K D.H.W. flow
LGas supply
MCold water inlet
N Heating return
1
23
04
bar
1
23
04
bar
c
The boiler is suitable for the flue types:
• type C 12
• type C 32 xx or C 32 xy
• type C 52
Outer case dimensions :
- Height : 850
- Width : 440 (minimum space required 450)
- Depth : 380
c
212
360
721
850
67
All dimensions in mm
380
50
Fig. 1
These Instructions Must Be LeftWithThe Appliance.

2
Pump and expanssion vessel characteristics
0
4
3
2
1
5
6
100 200 800
700
600
500
400
300 900 100011001200 l/h
mCE Débit mini (robinets thermostatiques fermés)
Pression disponible
20 40 60 80 100 120
Pf
140 160 180 200 220 240
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
1,9
2,0
Capacité maximale de l'installation (en litres)
80°C 70°C 60°C
50°C
40°C
260
Pression à froid pour le circuit chauffage (en bar)
Components location
9CH control thermistor
10 DHW control thermistor
11. Sealed chamber
12. Expansion vessel (not visible)
13. Over heat security
14. Electrical box
15. Two position Selector switch
16. Domestic hot water temperature
adjustment
17. Heating flow temperature adjustment
18. CH pressure gauge
19. Heating temperature indicator
20. Green indicator - Power ON
21. Orange indicator - Burner ON
22. Red indicator - Lock out / flame
failure
23. Reset button
24. Multigas burner comprising:
-25. 16 burner head
-26. Manifold
-27. 2 Ignition electrodes
-28. Ionization electrode
29. Gas section comprising:
-30. Security valve (grey)
-31. Security valve (grey)
-32. Second stage solenoid
33. Right hydraulic assy
34. Left hydraulic assy
35. Single speed pump
36. Automatic air separator and
automatic vent
37. Heating mode indicator
38. DHW mode indicator
39. Combustion chamber made of
aluminium coated steel with 4
ceramic fibre panels to insure
heat insulation
40. Main heat exchanger
41. Three way valve
42. Flue hood with fan
43. Air Pressure switch
44. CH water pressure switch
45 Water/water heat exchanger
46 DHW microswitch
47 DHW flow sensor
48 3 way valve hydraulic motor
49 Automatic by-pass
50 Flue sampling point
1. Heating Flow isolating valve
2. DHW outlet
3. Gas service tap
4.Water service tap
5. CH Return isolating valve
7. Pressure relief valve
8. Steel chassis
12345 7
8
Note : The system initial pressure should be over the following value :
System static height (in metre) + 0.7 = Initial pressure (in bar)
10
Head available / flow
Liters
Pressure System capacity chart
Fig. 2
49
PUMP HEAD AVAILABLE
Minimum flow rate (with all heating thermostatic valves closed)
mCE

3
FUNCTIONING
Switching on
1) Check that the gas service tap is opened at the gasmeter and
main power is on.
2) Check that pressure in central heating system is above 0.8
bar and below 1.5 bar with the pressure gauge 18.
3) Open the gas tap 3.
4) The boiler is now ready to use.
5) Turn main switch 15 to position I. The green "power on" indi-
cator 20 will light.
Hot Water
1) Turn the DHW thermostat clock wise 16. The DHW indicator
will light 38.
2) Turn on a hot water tap, the orange "burner on" indicator
will light 21 and the water will become hot.
Heating
1)Turn the CH thermostat clockwise 17 The CH indicator will
light 37.
0
123
bar
Control panel
BRITONY COMBI FUNCTIONAL DIAGRAM
I
reset
42 43
12
40
13 28 27
24
29
303132 14
44 18
35
7
46
48
45
10
47 41
5431
36
949
42 43
12
40
13 28 27
24
29
303132 14
44 18
35
7
46
48
45
10
47 41
5431
36
949
43
8
40
39
24
36
35
14
13
42
29
11
12
41
33
34
15
38
161718
19 2022
23 21
37
Fig. 3 Fig. 4
Fig. 5
Fig. 6 Heating mode Hot water mode
44
10
45
50

4
2) If the room thermostat (if fitted), the
boiler temperature control and the
clock (if fitted) are all calling for heat, the
orange "burner on" indicator 21 will
light and the heating will be on.
When there is a need for hot water while
the heating is on, it is only necessary to
turn on a hot tap. The heating will be
interrupted momentarily while the hot
water is being delivered. The boiler will
switch back automatically to heating
when the tap is turned off.
Note: if the boiler has been turned off for
some time the first attempt to light it may
result in a lockout . If this happens
press the reset button 23 and the boiler
will light.
To Turn Boiler Off Completely
1) Turn the selector switch 15 to the off
position O.
2) Turn the gas tap 3 Fig. 2 OFF.
Domestic Hot Water Mode
In order to supply hot water, the main
switch 15 Fig. 4 must be in ON position I
This will be confirmed by the green indica-
tor light 20 Fig. 4. Turn the selector
switch 16 clock wise to establish the green
DHW indicator 38 Fig. 4.
When a tap or shower is turned on, the
flow of mains water, above 2 litres per
min., will activate the 3 way valve 41 Fig. 5
to move to the DHW position. The pump
will now circulate primary water heated by
the main heat exchanger through the sec-
ondary heat exchanger.
The safety solenoid 30 and 31 Fig. 5 open
together to allow gas to the burner. The
ignition sequence begins and a continu-
ous high speed spark ignites the gas. As
soon as a flame is detected the orange
indicator bulb 21 Fig. 4 will light and the
second stage solenoid 32 Fig. 5 opens to
allow the full gas rate. If a flame is not
detected, after 8 seconds, the security
solenoids close and shut off the gas. The
red lockout indicator bulb 22 Fig. 4 will
show. The domestic hot water tempera-
ture is controlled by the hot water control
thermistor 10 Fig. 5 and the central heat-
ing control thermistor 9Fig. 5. This sys-
tem anticipates the changes of
temperature in the secondary heat
exchanger and ensures accurate temper-
ature regulation.
When the tap is closed the burner is extin-
guished and the pump stops.
Priority will be given to a demand for hot
water. This will interrupt the central heat-
ing for the duration of hot water delivery.
Central Heating Mode
To be able to supply heating, the main
switch 15 Fig. 4 must be in Iposition. This
will be confirmed by the green indicator
light 20 Fig. 4. Turn the selector
switch 17 clock wise to establish the
green heating indicator 37 Fig. 4.
When there is a demand for heating
(either from the room thermostat or the
clock) and the boiler temperature control
is calling for heat. The pump starts allow-
ing the ignition sequence to begin.
The safety solenoid 30 and 31 Fig. 5
open together to allow gas to the burner.
The ignition sequence begins and a con-
tinuous high speed spark ignites the gas.
As soon as a flame is detected the
orange indicator bulb 21 Fig. 4 will
light. After 45 seconds the second stage
solenoid 32 Fig. 5 opens to allow the full
gas rate. If a flame is not detected, after
8 seconds, the security solenoids close
and shut off the gas. The red lockout
indicator bulb 22 Fig. 4 will show.
The central heating flow temperature is
controlled by the central heating control
thermistor 9Fig. 5. The boiler has been
designed to minimise cycling and will not
attempt to relight for 3 minutes after the
boiler thermostat has been satisfied (it is
possible to reduce the time to 30 s if nec-
essary). When the room thermostat is
satisfied the burner will switch off and
the pump will remain running for a fur-
ther 4 minutes before it stops.
NB : it is possible to override the 3 minute
delay by putting off and on the central
heating selector switch 17.
19 17 15 13 11 9 7 5 3 1
20 18 16 14 12 10 8 6 4 2
08 07 06 05 04 02 01
A
B
A
BNC
C
NO
01 02
09
2
P
1
06
05
04
07 08
09
910 76852143141120
21
21 19
Room
thermostat
Main supply
230 V 50Hz
Pump
Spark Generator
Spark
electrodes
Fan
Pressure switch
Safety thermostat
1green
green
2H.W.
Thermistor
3 purple
4Heating
Thermistor
purple
grey
grey
D.H.W. microswitch
5
8blue
blue
6
7
Security solenoid
valve
Security solenoid
valve
Solenoid valve
black
black
9
10 brown
brown
11
14
01
02
04
05
07
08
06
09
brown
blue
mass
white
orange
black
brown
brown
green /
yellow
brown
white
mass
Sensing electrode
15
16 black
black
19
20
21 green /
yellow
15 16
Pressure switch
security
mass

cable
cable
A

B

0.8b
WIRING DIAGRAM

5
Adjustment on the PCB :
- P3 : potentiometer TAC (Temporisation Anti Cycle)
may be adjusted between 30 seconds and 3 min-
utes (see detail) (factory set at 3 minutes).
- JP3 : the spade connector allows the gas rate to be
reduced to 1/3 performance by positionning
spade across pins as shown A
Full performance across pins as shown B.(factory
set)
After completling adjustments replace rubber cover and
refit outer casing
ADJUSTMENTS ON CONTROL PCB
ROUTINE SERVICING
To ensure continued efficient operation of
the appliance, it is recommended that it is
checked and serviced as necessary at
regular intervals. The frequency of servic-
ing will depend upon the particular instal-
lation condition and usage, but in general,
once a year should be adequate.
It is the law that any service work must be
carried out by a competent person such
as your local Chaffoteaux Service Centre,
British Gas or other CORGI registered
personnel in accordance with the current
Gas Safety (Installation and Use)
Regulations.
The service schedule should include
the following operations:
- Check the pressure in the system.
- Check the correct operation of the
appliance.
- Check the correct operation of the gas
controls.
- Check the functions of the safety con-
trols.
- Check combustion chamber insulation
panels for damage.
- Clean the burner.
- Clean the heat exchanger.
- Check the burner manifold injectors.
- Clean gas and water filter.
- Check expansion vessel charge pres-
sure.
- Clean and check operation of safety
valve.
Additional Procedures that may be
necessary:
- Check burner pressure and gas flow
rates.
- Check that the fan blades are clean.
- Check, clean and replace components
as necessary.
- Carry out combustion test utilising the
test points in the flue turret.
SUGGESTED SEQUENCE for SERVIC-
ING
Before disconnecting or removing any
parts, isolate the gas and electricity sup-
plies. Ensure that the appliance is cool.
(for detail please see section on Parts
Removal and Replacement)
Preliminary Checks
- Remove outer case
- Check the system pressure is at least
0.8 bar cold
- Check operation of solenoids.
- Check that the burner is extinguished
fully when solenoids are closed in both
DHW and C/H modes.
- Test ionisation functions and check that
lockout occurs by turning off gas tap.
CLEANING THE BOILER
Any cleaning work must only be done
when the boiler is switched off.
Under normal circumstances dusting
should be enough. An occasional wipe
over with a damp cloth will remove any
marks from the casing. On no account
use an abrasive cleaning powder or liq-
uid.
Temperature regulation for both C/H and
DHW circuits are controlled by 2 thermis-
tors. The C/H knob allows the adjustment
of temperature between 35 and 85°C. The
DHW temperature is limited to 60°C. DHW
and C/H thermistors are identical and
interchangeable.
Resistance value are
-5000 Ωat 25 °C
-2631 Ωat 40°C
-620 Ωat 80°C
-255 Ωat 110°C
REGULATION
The air flow rate is detected by a pressure
differential created by a venturi located in
the flue duct.
ON threshold ∆P > 130 Pa
OFF threshold ∆P < 100 Pa
AIR PRESSURE SWITCH
C10C10
C11C11
C38C38
F1F1 F1AF1A
J1J1
J2J2
J5J5
MV1MV1
R67R67
R72R72
R73R73
R75R75 R76R76
R85R85
12
HOR
NL
THERMOSTAT
N
L
J9
J10
J11
TA
24 V
230 V
P3
(P3-P4-P5)
mini maxi
Detail
P3
P3
1/3
3/3
P3
P3
1/3
3/3
P3
JP3
A B
COMBUSTION TESTING
Nox Values
Britony SE Natural Gas G20
SE 80 95 ppm
SE 100 109 ppm
CO Values
Britony SE Natural Gas G20
SE 80 15 ppm
SE 100 21 ppm

6
1
23
04
bar
AA
REMOVAL AND REPLACEMENT OF PARTS
1
2
3
BB
AA
12
P
Before removing appliance case, isolate
the gas and electrical supplies. Isolate
boiler from the system and drain before
removing any component in the water-
ways. Ensure that the appliance is cool.
1. Outer Case
Remove four screws in base of case and
lift free. When replacing, carefully locate
on lugs Bon top edge of chassis.
5. Ignition Electrodes
Carry out steps 1and 2as above. remove
the wiring cover undo the power lead plug
open the electrical box 2 clips.
Dicconnect leads from spark generator on
PCB. Loosen screws securing the closure
plate and remove. Remove grommet from
base of sealed chamber. Remove screw
securing electrode bracket and lift clear
easing spade connectors through the
grommet. Reassemble in reverse order,
twisted together electrodes cable at least
10 times to avoid electrical interference.
6. Burner Assembly
Carry out steps 1,2, disconnect elec-
trodes as mentionned in section 4and 5.
Remove two screws securing burner
assembly to the back panel of the boiler.
Lift right hand back corner first.
Reassemble in reverse order.
Carry out combustion tests utillising the
test points on the turret
7. Gas Solenoids
Disconnect colour coded leads. Remove
six screws. The solenoids are attached to
their base plate. Lift clear taking care not
to lose the three plungers and springs.
Reassemble in reverse order replacing
the cork gasket.
8. Fan Assembly
Remove outer case and sealed chamber
front panel (See Steps 1and 2).
Disconnect spade connectors noting
positions. Remove two screws securing
the front of the fan assembly and loosen
screw on flue outlet. Twist fan assembly
anticlockwise to disengage from flue out-
let and lift clear.
Re-assemble in the reverse order ensur-
ing that the wiring is re-connected cor-
rectly and the screw on the flue outlet
tightened.
9. Flue Hood
Carry out steps 1and 2as above.
Remove fan assembly as in step 8.
Remove the three screws securing the
angled top of the hood to the chassis. Lift
and remove taking care not to snag the
pressure switch cables. Re-assemble in
the reverse order ensuring that the hood
is located behind the combustion cham-
ber rear panel.
2. Combustion Chamber
Unscrew four self tapping screws secur-
ing the sealed chamber front panel and lift
over top corner locating lugs. Unscrew
four self tapping screws to release com-
bustion chamber front plate and lift clear.
Reassemble in reverse order.
3. Burner Manifold
Carry out steps 1and 2as above.
Remove two screws securing the closure
plate and the remaining four screws to
release the manifold. Lift clear. Replace
the manifold gasket. Reassemble in
reverse order.
4. Ionisation Electrode
Carry out steps 1and 2as above. Loosen
screws securing the closure plate and
remove. Disconnect the lead from the
main wiring loom. Remove screw secur-
ing electrode to burner. Thread wire
through grommet and lift clear.
Reassemble in reverse order.
10. Pressure Switch
Remove outer case and sealed chamber
front panel as in steps 1and 2.
Disconnect three pressure switch cables
noting their positions.
1 = white cable connected to NC
2 = black cable connected to NO
P = orange cable connected to C
Remove screw securing the switch brack-
et to the chassis. Disconnect the sam-
pling tubes again noting their positioning
(+ and -).
Remove switch. Reassemble in reverse
order.
11. Pressure Switch Venturi
Carry out steps 1, 2and 8, as above.
Disconnect the sampling tubes and
remove the screw securing the venturi to
the flue outlet. Remove venturi by the bot-
tom of the 45° elbow. Reassemble in
reverse order.
12. Drain down
2 drain points are located on the boiler.
1 = DHW circuit drain point
2 = Heating circuit drain point
(Pressure releave valve)
(air separator)
12
13. DHW Water filter
The DHW filter is located in the DHW
command 47 Fig. 5 on the right hydraulic
assembly. Remove the clip and pull
toward you the DHW command remove
the plug and clean the filter. Reassemble
in reverse order.
14. DHW Flow switch
Disconnect the electrical connections
undo the securing clip and remove the
microswitch reassemble in reverse order.
46 Fig. 5

7
D
E
F
G
10
13
9
45
H
15. 3-Way valve
Drain boiler as in step 12. Remove the 2
clips on the 3 way valve hydraulic motor
48 Fig. 5. Pull up the motor .Turn anti-
clockwise the 3 way valve body, rise it up
using a screw driver and remove it.
Reassemble in reverse order.
16. Secondary heat exchanger 45
Drain both circuits of the boiler as in step
12. Unscrew the 2 fixing screws Dand
remove the DHW exchanger from the
front. Prior to reassembly, check that the
4 gaskets are correctly positioned. The
heat exchanger is so designed that it can-
not be remounted incorrectly.
17. Main heat exchanger
and insulation pads
Carry out steps 1and 2as above. Drain
boiler as in step 12. Remove the 2 clips E
located on return and flow pipes and pull
them downwards. Pull the main exchang-
er toward you to remove. Reassemble in
reverse order.
To replace insulation pads carry out the
above procedure. To remove the pads
bend down the retaining clips and retract
the pads.
Reassemble in revers order
18. Pump
Drain the boiler as in step 12. Open the
electrical box cover removing the 2
screws. Remove the main lead connec-
tion. Open the electrical box, 2 clips G.
Remove the pump plug from the control
board and earth plug from earth socket.
Pivot the electrical box downwards.
Unscrew the nut Fof the flow pipe from
the volute. Remove the clip Hon the
pump volute and pull pump toward you.
Remove the back clip.
Reassemble in reverse order.
19. Pressure relief valve
Drain the boiler first, unscrew the safety
valve head with a 24 mm spanner.
Reassemble in reverse order.
20. Thermistors
Drain the boiler as step 12. Disconnect
the plug, remove the retaining clip for the
DHW thermistor 10 and unscrew the nut
for the CH thermistor 9, pull the thermistor
out. Reassemble in reverse order.
10 = DHW thermistor
9 = Heating thermistor
21. Safety thermostat
Remove the casing as step 1unscrew
four self tapping screws securing the
sealed chamber front panel. Disconnect
the 2 cables, pull out the sensor with the
clip 13. Reassemble in reverse order.
22. Control board
Carry out step 1, open the electrical box
cover as mentionned in step 5. unplug all
cables from the PCB remove earth plug
from earth socket undo the screw fixing
the PCB. Hang out the control board.
Reassemble in reverse order.
23. Expansion vessel
Remove the casing as step 1and drain
the boiler as step 12 above. Unscrew the
connecting nuts and lift out the boiler from
the wall. Place it on a side on the floor.
Remove the expansion vessel bracket
retaining screws, disconnect the pipe
from the vessel and pull it toward you.
Reassemble in reverse order.

8
FAULT FINDING CHART Part 1
PLEASE CHECK CAREFULLY FOLLOWING POINTS BEFORE GOING THROUGH THE FAULT FINDING CHART -Gas pressure -Electric mains -Minimal water pressure in the heating circuit (over 0.8 bar) - All isolating valves have been opened - Boiler air vented -Minimal domestic hot water flow of 2 l/min
Put the selector switch on I
position
Does the green LED
alight ?
Replace control PCB
Replace control PCB
Replace
diaphragm on 3
way valve motor
Release pump rotor
Replace pump
Replace pressure switch
Does the red LED
alight ?
Does the fan run ?
Check air pressure
switch continuity
between Pand 1
Check voltage on
the fan
Press on reset button
Replace controle PCB
Check or replace the DHW
microswitch
Does the pump run ? Does the pump run ?
Check DHW flow
switch operation
Check that the
pump spins free
Check voltage in the
pump electrical box
Replace control PCB
Could you hear the
spark generation?
Check air pressure
switch continuity
between P and 2
Replace fan assembly
- Check pressure probes
or
- Check flue duct condition
or
- Replace pressure switch
Yes
Yes
Yes
No No
No
No
Ok
Ok
Ok
No
Check or replace main or sec-
ondary heat exchangers. They
could be fully scaled.
Check flow in the
boiler primary circuit
Ok
No
Replace heating thermistor Check heating
thermistor
Ok
No
No
No
No
No
Yes
Yes
No
No
No
No
Ok
Ok
Ok
Ok
Ok
Turn the DHW selector clock-
wise to maximum
Does the green LED
DHW mode indication 38
alight?
Yes
Draw of dosmectic hot water
No
Does the pres-
sure gauge indicate
more than 0.8b
Rise the pressure in the CH
circuitNo
- Check mains electrical
connection
- Check internal fuses
Yes
Yes
Check DHW
command is working
Clean or replace DHW
command
Yes No
means a test or a choice means an action means a group of actions

9
FAULT FINDING CHART Part 2
Does the orange
LED alight ?
Replace gas solenoïds
assembly
Replace electrod
assembly
Does overheat con-
tact close ?
Does the red LED
alight ?
Does the burner
alight more than 8 sec.?
Check if an overheat occur or
replace overheat sensor
Replace control PCB because
orange LED is deffective
Purge gas pipes and press on
reset button
Does gas solenoïds
energized ?
Is there a gas
pressure at manifold ?
Does the heating
outlet pipe temperature
rise ?
check the ionization
electrod
Does DHW
temperature over 70°C ?
Check DHW
thermistor
Does the heating
outlet pipe
temperature rise ?
Does the orange
LED alight ?
Does the orange
LED alight ?
Replace control
PCB
Replace DHW thermistor
Replace the 3 way valve
Replace the 3 way valve
Replace control PCB
Stop water draw off
Wait until the return pipe
becomes hot, then rotate the
heating control knock anticlock-
wise to minimum.
- Adjust the DHW flow rate to
3 l/min. on a tap.
- Wait until the temperature
becomes stable.
Put the selector switch on Iposition.
- Press on RESET button to cancel the 3 min. delay. - Ensure that external controls are calling for
heat.
- Rotate heating knob clockwise to the maximum
position.
Yes
The boiler is OK
Yes
No
Yes
Yes
No
No
Ok
No
No
No
Yes
Yes
No
No
No
No
Does the DHW
temperature rise ?
No
Yes
Yes
No
Ok
Replace the DHW heat
exchanger
Yes
Yes
Yes
Yes
Replace control PCB
Replace PCB
Replace PCB
No

10
CODE FAULT
30 40 50 60 70 80
mmmmml Overheat sensor switch open.
mmmmlm Overheating defect without lock out.
mmmmll No flame detection.
mmmlmm Ionisation printed circuit board faulty.
mmmlml Anti-frost mode on (pump in operation).
mmmllm Anti-frost mode on (burner and pump in operation).
mmlmml Domestic hot water thermistor faulty (open circuit).
mmlmlm Domestic hot water thermistor faulty (short circuit).
mmlmll Central heating thermistor flow faulty (open circuit).
mmllmm Central heating thermistor flow faulty (short circuit).
mlmmml Low water pressure in the Central Heating circuit.
mlmlml Fan on but does not activate air pressure switch.
mlmllm Fan off but air pressure switch fails to return to off position.
Incorrects functions is signalled by leds (rep 22) display flashing correspond with chart below.
INCORRECT FUNCTION

11
SHORT LIST
206
113
111
216
110
104
402
510
514
509
560
572 627
629
615
607
636
545
594
592
535
104 OVERHEAT THERMOSTAT 105°C 1303566 ...
110 IGNITION ELECTRODE 277788 1002801 ...
111 IONIZATION ELECTRODE 277789 1002802 ...
113 HEAT EXCHANGER 277790 1010017 ..
HEAT EXCHANGER E00606 1011136 .
206 FAN ASSY 1304720 ..
FAN ASSY 1304721 .
216 AIR PRESSURE SWITCH 24KW 1306697 ..
AIR PRESSURE SWITCH 28KW 1307335 .
402 SOLENOID VALVES KIT E23494 81836 ...
509 VALVE 1302411 ...
510 THERMISTOR TEMP. SENSOR 277834 1000733 ...
514 WATER / WATER HEAT EXCHANGER 1302409 ...
535 PRESSURE RELIEF VALVE KIT 81980 ...
545 DIAPHRAGM 81977 ...
560 AIR SEPARATOR HEAD ASSEMBLY 1304608 ...
572 PUMP + AIR SEPARATOR 15/50 1301964 ...
PUMP + AIR SEPARATOR 15/60 1303461 ...
575 BY-PASS 1301960 ...
592 WATER CONTROL 8L/MN 1301952 ..
WATER CONTROL 10L/MN 1305290 .
594 FLOW REGULATORE 8L/MN (RED) 1017288.08 ..
FLOW REGULATORE 10L/MN (WHITE) 1017288.10 .
607 PRESSURE GAUGE 1303159 ...
615 PRINTED CIRCUIT BOARD 1308723 ...
627 FUSE 250V 2A - TEMPORIZED 277883 1003456 ...
629 FUSE 250V 1.25A - TEMPORIZED 277884 1003635 ...
636 KNOBS SET 81979 ...
DescriptionKey N°
Manf. Pt. N°
Type G.C N° FF FF FF
Manf. date
80
B.C. SE (w/out timeclock)
100
B.C. SE (with timeclock)
BRITONY COMBI SE
from to

Ref. : 1304993f - 03/2004
Chaffoteaux & Maury are continuously improving their products and therefore reserve the right to change specifications without prior
notice and accepts no liability for any errors or omission in the information contained in this document.
Manufacturer: Chaffoteaux & Maury - France
Commercial subsidiary: MTS (GB) Limited
MTS Building
Hughenden Avenue
High Wycombe
Bucks HP13 5FT
Telephone: [phone]
Fax: [phone]
Internet: www.chaffoteaux.co.uk
E-mail: [email protected]
Technical Support Help Line: 0870 241 8180
Customer Service Help Desk: 0870 600 9888
This appliance is suitable for Natural gas or LPG. A gas conversion must be made by a competent person.