Combi 80
Combi
COMBINATION BOILER
Heating and Instantaneous Domestic Hot
Water
Fanned Flue system
Installation and
Operating instructions
--
100
These instructions are suitable for the following boilers :
Britony Combi 80
Britony Combi 100
CUSTOMER CARE
Chaffoteaux et Maury Ltd., as a leadrng manufacturer of domestrc and commercral water heatrng applrances, IS committed to provrdrng hrgh qualrty products and a
hrgh qualrty after sales servrce If it IS necessary to contact an engrneer, then telephone your local Chaffoteaux Service Centre. The number can be obtarned from
the leaflet enclosed rn the customer care pack wrth your boiler or by telephonrng the Chaffoteaux Customer Servrces Department at Telford.
Advrce on rnstallatron or servrcrng can also be obtarned by contactrng the Chaffoteaux Customer Servrces Department at Telford.
CUSTOMER SERVICES DEPARTMEN
Tel: 01952 222288
Fax. 01952 260915
GUARANTEE
The manufacturer‘s guarantee IS for 12 months from the date of purchase. The guarantee is voidable d the appliance IS not Installed rn accordance with the
recommendatrons made herern or rn a manner not approved by the manufacturer. To assrst us rn provrding you with an effrcrent after sales servrce, please return the
guarantee regrstration card enclosed wrth the borler wrthout delay
STATUTORY REQUIREMENTS
The rnstallatron of thus applrance must be carned out by a CORGI Regrstered person or other competent person and in accordance with the requrrements of the Gas
Safety (Installatron and Use) Regulatrons.
In addrtron, the rnstallatron must also comply wrth the current byelaws of Local Water Undertakrngs, Burldrng Regulatrons, IEE Winng Regulatrons, Local Authority
Burldrng Standards (Scotland) Regulatrons and the Safety Document 635 The Electncrty at work Regulatron.
It should also be carned out rn accordance with current edrtrons of the followrng Brrtrsh Standards Codes of practrce: BS 6891, BS 5440 parts 1 and 2, BS 5449 part
1, BS 7593, BS 6798, BS 5546, BS 4814, BS 7074 part 1 and 2, BS 7671 and BG DM2.
If there IS a possrbrlity of the Incoming marns water pressure exceedrng 10 bar then a surtable pressure lrmrtrng valve must be frtted
To comply wrth the Control of Substances Harmful to Health Regulatron 1988 we are requrred to provrde rnformatron on the following substance that IS contarned
wrthrn the applrance Descrrptron: Combustron Chamber Lrnrng
Precautions. Dunng servrcrng, keep the dust generation to a mrnrmum and avoid Inhaling any dust and contact with the skrn and eyes. Normal handlrng and use wrll
not present any drscomfort, although some people wrth a hrstory of skin complarnts may be susceptible to rrntatron. When disposing of the Irmng, ensure that rt IS
securely wrapped and wash hands after contact.
Material: Alumrno SIrcone Fibre
CUSTOMER CARE
Guarantee
Statutory Requirements
Contents .....................
INTRODUCTION
DESCRIPTION
Location of components
TECHNICAL DATA
DIMENSIONS
OPERATION
Domestic Hot Water Mode
Central Heating Mode
INSTALLATION REQUIREMENTS
Location
Flue .........................
Ventilation
Gas Supply
Electrical Supply
SYSTEM GUIDANCE
Showers
Flushing and Water Treatment
System Controls
Bypassand pump
Expansion Vessel
Filling Point ...................
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INSTALLING THE BOILER
Installation
Fitting the horizontal flue
Making the electrical connections
COMMISSIONING AND TESTING
Pre-commissioning
Domestic Hot Water ...........
Central Heating
Lighting the boiler .............
Post Commissioning
Handing over to the Householder
USER’S INSTRUCTIONS
Control panel
Isolating taps
Switching on
Hot water
Heating and hot water
Turn off the boiler
INSTRUCTION FOR SETTING THE BUILT
IN CLOCK
Mechanical programer
Electronic programer
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The BRITONY COMBI is a fully automatic, wall mounted, low water content combination boiler. It is a room sealed,
fan assisted, balanced flued appliance providing central heating and mains pressure domestic hot water on
demand. It has electronic ignition and is suitable for all modern electrical control systems. The boiler is designed
for sealed systems only and a circulating pump, expansion vessel together with a pressure gauge and safety valve
are included within the boiler.
The standard horizontal flue kit is suitable for lengths 300 mm minimum to 610 mm maximum and includes an
elbow adapter that can be rotated through 360”. The horizontal flue can extend up to 3 metres using 1 metre flue
extension kits. 45” and 90” flue bends are also available as accessories.
The BRITONY
available.
The boiler is packed in two cartons:
1. the boiler
2. the flue assembly and the pre installation kit
COMBI
is
also suitable
for concentric vertical flueing and twin pipes. Adapters
and accessoiries
are
Location of components
1. Air pressure switch
2. Steel chassis complete with expansion vessel
3. Main heat exchanger
4. Combustion chamber
5. Multi- gas burner assembly comprising ignition and
ionisation electrodes
6. Automatic air separator and automatic vent
7. Heating circuit flow switch
8. Pump
9. Electrical box
10. DHW circuit flow switch
11. Overheat thermostat
12. Gas valve assembly
13. Sealed chamber
14. Flue hood with fan
15. Hot water control thermistor
16. Central heating control thermistor
17. Three way valve
18. CH Flow isolating valve
19. Three position Selector switch
20. User’s instruction panel.
21. Heating flow temperature adjustment
22. Green indicator - Power ON
16 -
Fig. 3
\
21
20
22
i6
23. Orange indicator - Burner ON
24. Red indicator - Lock out / fiame failure
25 Reset button
26. Pressure gauge
27.Gas service tap
28. Water service tap
29. CH Return isolating valve
30. Pressure relief valve
31. Secondary heat exchanger
32. By pass
33. By pass adjustment screw
Britony combi type
Appliance category . . . . . . . . . .
C/H circuit pressures
Min operating in bar
Max operating in bar
DHW flow rates
@30”CinI/min . . . . . . . . . . .
@ 35°C in I/min
DHW circuit pressures
Min operating in bar
Max operating in bar
Flow limitor rate in Vmin
in lb/in2
in lb/in*
in gal/min .
in gal/min
in lb/in2
in lb/in*
80 100
cat II 2H 3+ cat II 2H 3+
0.7 0.7
10 10
2.5 2.5
36.3 36.3
11.1
2.45 2.95
9.54
2.10 2.53
0.1 0.1
1.45 1.45
10 10
145 145
10 12
13.4
11.48
Britony combi type 80 100
Natural gas G20
Gas rate
Maximum in m3/h
Maximum in ft3/h
Inlet pressure
Nominal in mbar . .
Nominal in in wg . . .
Burner pressure
Nominal in mbar .
Nominal in in wg . .
Burner injector diamater
Natural gas G20 in mm . 1.23 1.26
PROPANE L.P.G. G31
Gas rate
Maximum in kg/h . .
Maximum in ft3/h . .
Inlet pressure
Nominal in mbar
Nominal in in wg .
Burner pressure
Nominal in mbar
Nominal in in wg . .
2.74
97
20 20
8 8
11
4.4
2.00
4.41
37
14.8
35
14
3.34
118
12.8
5.12
2.42
5.34
37
14.8
30.4
12.16
Britony combi type 80
BUTANE L.P.G. G30
Gas rate
Maximum in kg/h
Maximum in Lbs/h .
Inlet pressure
Nominal in mbar .
Nominal in in wg .
Burner pressure
Nominal in mbar
Nominal in in wg
Burner injector diamater
LPG G30 and G31 in mm
Burner injector diamater
LPG G30 and G31 in mm 0.72 0.76
Compartment ventilation
2.04
4.50
28
11.2
26,7
IO,7
0.72
not required
100
2.45
5.40 Expansion vessel
28
11.2
24
9.6
0.76
Britony combi type 80 100
Safety discharge
in bar . . . . . 3 3
in lb/in*. . . . . . . 43.5 43.5
Pre-charge pressure in bar 0.7 0.7
Pre-charge pressure in lb/in*
Net capacity at 3 bar in liter
Adjustable by-pass
Minimum flow rate in I/h 100 100
Minimum flow rate in gal/min 0.36 0.36
Maximum flow rate in I/h 700 700
Maximum flow rate in gal/min 2.56 2.56
Electrical characteristics
Supply . 230~ 50 Hz
Consumption 150w 150w
Protection .
Fuse+1 . . 2A 2A
Fusen”2 . .
External controls 24v 24v
9.4
5.44 5.44
IP 44 IP44
1.25A 1.25A
9.4
Without packaging :
Tails diameter
Safety valve outlet 015mm
~ 1
J Heating flow 022mm
K D.H.W. flow 015mm
L
Gas supply
M
Cold water inlet 015mm
N
Heating return 022mm
022mm
q
Outer case dimensions
- W&h : 440 (mnmum space required 450)
- Height :
-Depth: . iii
Fig. 4
:
I
Safety valve axe
Minimum clearances :
- Both sides 5mm
- Above casing 170 mm
- Below casing
200 mm
- Front (for servicing) 500 mm
- Front (in operation) 5 mm
The boiler is suitable for the 3 flue types :
l
typeC12 C22orC42
l
type C 32 xx or C 32 xy
Fig. 5
TYPE Cl2 or C42
Sizes in mm
TYPE C32 xx TYPE C32 xy
Domestic Hot Water Mode
To be able to supply hot water, the selector switch 19 Fig. 6
must be in either on k or ‘1111 .? position. This will be
confirmed by the green indicator light 0 22 Fig. 6
When a tap or shower is turned on, the flow of mains water,
above 2 litres per min., will activate the DHW flow switch 10
Fig 7 and allow the 3 way valve 17 Fig. 7 to move to the
DHW position. The pump can now circulate primary water
heated by the main heat exchanger through the secondary
heat exchanger.
The first stage solenoid 12a Fig. 7 and safety solenoid 12c
Fig. 7 open together to allow gas to the burner. The ignition
sequence begins and a continuous high speed spark ignites
the gas. As soon as a flame is detected the orange indicator
bulb 0 23 Fig. 6 will light and the second stage solenoid 12b
Fig. 7 opens to allow the full gas rate. If a flame is not
detected, after 8 seconds, the security solenoid closes and
shuts off the gas. The red lockout indicator bulb a 24 Fig. 6
will light, The domestic hot water temperature is controlled
by the hot water control thermistor 15 Fig. 7 and the central
heating control thermistor 16 Fig. 7. This system anticipates
the changes of temperature in the secondary heat exchanger
-\ $1 22 26
16
Fig. 6
and ensures accurate temperature regulation
When the tap is closed the burner is extinguished and the pump
stops. The boiler will now stay in the hot water mode for three
minutes to maintain temperature to ensure a fast response in the
event of a subsequent hot water demand.
Priority will be given to a demand for hot water. This will interrupt
the central heating for the duration of hot water delivery.
Central Heating Mode
To be able to supply hot water, the selector switch 19 Fig. 6
must be in either on
confirmed by the green indicator light 0 22 Fig. 6
20
.e
or
‘Ill1
FF position. This will be
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 and at a flow rate of 4 Itr/min
the central heating flow switch operates allowing the ignition
sequence to begin. The first stage solenoid 12a Fig. 7 and
safety solenoid 12c Fig. 7 open together to allow gas to the
burner. The ignition sequence begins and a continuous high
speed spark ignites the gas. As soon as a flame is detected the
orange indicator bulb b 23 Fig. 6 will light. After 45 seconds the
second stage solenoid 12b Fig. 7 opens to allow the full gas
rate. If a flame is not detected, after 8 seconds, the security
solenoid closes and shuts off the gas. The red lockout indicator
bulb * 24 Fig. 6 will light.
The central heating flow temperature is controlled by the
central heating control thermistor 16 Fig. 7. The boiler has been
designed to minimise cycling and will not attempt to relight for at
least 3 minutes after the boiler thermostat has been satisfied.
When the room thermostat is satisfied the burner will switch off
and the pump will remain running for a further 3 minutes before
it to stops.
NB
It is possible to override the 3 minute delay by pressing the
RESET button 25 Fig. 6.
Location
The boiler can be installed on any suitable internal wall.
Provision must be made to allow the correct routing of the
flue and siting of the terminal to allow the safe and efficient
removal of the flue products. The appliance may be
installed in any room, although reference must be made to
the IEE regulations if it contains a bath or shower. A
compartment or cupboard may be used provided that it has
been purpose-built or modified for the purpose. Provision
must be made for permanent ventilation. Detailed
recommendations are given in BS 5440 pt 2. If it is
proposed that it is installed in a timber framed building then
reference must be made to British Gas Document DM2, or
advice sought from CORGI.
Flue
The boiler must be installed so that the flue terminal is
exposed to the free passage of external air at all times. It
must not be allowed to discharge into another room or
space such as an outhouse or closed lean-to. The
minimum acceptable clearances are shown below:
- A Directly below an opening, window, etc
- B Below gutters soils pipes or drain pipes
- C Below eaves
- D Below balconies or car port roof
- E From a vertical drain pipe or soil pipe
300 mm
75 mm
200mm
200 mm
75 mm
- F From an internal or external corner
- G Above ground roof or balcony level
- H From a surface facing the terminal
- I From another terminal facing the terminal
-J From an opening into the dwelling when
under a car port
- K Vertically from a terminal on the same wall
- L Horizontally from a terminal on the same wall
- M fixed by the flat roof ubbink rolux 4GM flue terminal
- N fixed by a pithed roof ubbink rolux 4GM flue terminal
300 mm
300 mm
600 mm
600 mm
1200 mm
1500 mm
300 mm
It may be necessary to protect the terminal with a guard if it is
accessible and could be damaged. Reference should be made to
the Building Regulations for guidance. Suitable guards may be
obtained from the following maufacturer:
Ventilation
The room in which the boiler is installed does not require specific
ventilation. IF IT IS INSTALLED IN A CUPBOARD OR
COMPARTMENT PERMANENT VENTILATION IS NOT
REQUIRED FOR COOLING PURPOSES. If vents are installed,
they must communicate with the same room or be on the same
wall to outside air.
Quinnel Barret & Quinnel Wireworks
Old Kent Road
London SE1 5 1 NL
Tel: 0171 639 1357
outside air.
Gas Supply
The gas installation and soundness testing must be in
accordance with the requirements of BS 6891.The boiler
requires: 2.74 m3/hr and a 22 mm supply. Ensure that the pipe
size is adequate for the demand including other gas
appliances on the same supply.
Electrical Supply
The appliance requires an earthed 230V - 50 Hz supply and
must be in accordance with current I.E.E. It must also be
possible to be able to completely isolate the appliance
electrically. Connection should be via a 3 amp fused doublepole isolating switch with contact separation of at least 3 mm
on both poles. Alternatively, a fused 3 Amp. 3 pin plug and
unswitched socket may be used, provided it is not used in a
room containing a bath or shower. It should only supply the
appliance.
The boiler is suitable for sealed systems only. The maximum
working pressure for the appliance is 10 bar. All fittings and
pipework connected to the appliance should be of the same
standard. If there is a possibility of the incoming mains
pressure exceeding 10 bar, particularly at night, then a
suitable pressure limiting valve must be fitted.
The boiler is designed to provide hot water on demand to
multiple outlets within the property. If there is a requirement
for greater demands, for example if the property has several
bathrooms and cloakrooms, a vented or unvented hot water
storage system may be used.
Showers
Any shower valves used with the appliance should be of a
thermostatic or pressure balanced type. Refer to the shower
manufacturer for performance guidance and suitability.
Flushing and Water Treatment
The performance of the appliance could be impaired by
system debris or the effects of corrosion. The system must be
flushed thoroughly to remove metal filings, solder, machining
oils and other fluxes and greases before connecting the
boiler. If it is an existing system, an appropriate flushing and
descaling agent should be used. Refer to BS 7593 (1992) for
guidance. For more information on the use of corrosion
inhibitors, flushing and descaling agents, advice can be
sought from the manufacturers of water treatment products
such as:
System Controls
The boiler is electrically controlled and is suitable for most
modern electronic time and temperature controls. The
addition of such external controls can be beneficial to the
efficient operation of the system. The boiler connections for
external controls are 24V and so only controls of 24V or that
have voltage free contacts should be used.
Betz Dearbon Ltd
Foundry Lane
Widnes
Cheshire
WA8 8UD
Tel: 0151 424 5351
Fernox Manufacturing
Britannica Works
Clavering
Essex
CBll 4QZ
Tel: 01799 550811
By pass and Pump
The boiler is fitted with a pre-adjusted by pass. Although adjustment is not normally necessary, the by pass can be reset by
turning screw ( D Fig. 9 ) anticlockwise to open the by-pass using the chart below for guidance.
If used on a system with thermostatic radiator valves, the flow rate with the thermostatic valves closed should be adjusted to
at least 100 I/hr.The chart below indicates the residual head of the pump available for the system.
m Hz0 I<- MInImum flow rate
5
4
3
D
2
1
0
0 100 200 300 400 600 600 700 800 90010001100I/h
Head and flow rate available
Fig. 10
Expansion Vessel
The expansion vessel is pre-charged to 0.7 bar (10 lb/in*).
The vessel is suitable for systems up to 145 litres capacity.
For systems of greater capacity an additional expansion
vessel will be required. Refer to the chart below and BS 7074
pt 1 or BS 5449.
Filling Point
Provision must be made to be able to charge the system on
commissioning and to make up any subsequent pressure loss.
The method of connection must utilise approved equipment
and must comply with the water regulations. A filling loop can
be so installed as to be hidden beneath the boiler.
Pressure ’
Fig. 11
System capacity chart
120 140 180
80
100
180 200 220
240 260
Litres
Fig. 12
Please check that you are familiar with the installation
requirements before commencing work.(section 6)
Installation
The installation kit included with the flue components
comprise following items :
- Hanging bracket
- A paper template (showing the dimensions of the boiler with
5 mm side clearances, fitting instructions and commissioning
instructions)
- Connection tails
- Screws and wall plugs
- Connection washers and filters
- Pre-piping jig
- Installation manual
Method of positionning the boiler on the wall.
The paper template can be used to ensure the correct
positioning of kitchen cabinets etc. It also details the
commissioning instructions.
The paper template has to be fixed to the wall and used to fix
the position of the hanging bracket, the centre for the flue
hole and, if required, the fixings for the pre-piping jig.
Drill and plug the wall and secure the hanging bracket using
the screws provided. Remove the boiler from its packaging as
shown in Fig. 13 and remove the outer case as shown in
Fig.1 4. Place the boiler on the wall on the hanging bracket.
If required, there is space for all piping to pass behind the
Fig. 13
Fig. 14
-
--
boiler. Using Fig. 15 for reference, connect the gas and water
pipes to the valves located at the base of the appliance using
the tails provided. There is a 190 mm space between the
valves and the wall to make these connections.
Provision must be made to fill and recharge the system
Fig. 15
Safety valve outlet
Heating flow
K D.H.W. flow 015mm
L
Gas supply 022mm
M
Cold water inlet 015mm
N Heating return 022mm
015mm
022mm
pressure. This can be achieved using a filling loop or other
methods approved by the local water authority.
The pressure relief should terminate below the boiler over a
tundish or 22 mm pipe (see I fig 15) which should in turn
discharge safely outside the premises. Care should be taken
that it does not terminate over an entrance or window or
where a discharge of heated water could endanger occupants
or passers by.
The system should be carefully checked for leaks, as frequent
refilling could cause premature system corrosion or
unnecessary scaling of the heat exchanger.
Fitting the Horizontal Flue
The instructions for the vertical and biflux (twin pipe) flue
options are included with the relevant adaptor kits.
The standard flue supplied with the appliance is suitable for
lengths from 300 mm minimum to 610 mm maximum. This
means for rear flueing, the standard kit will accommodate a
maximum wall thickness of 490 mm, and for side flueing a
maximum wall thickness of 477 mm. This takes into account
the minimum appliance side clearances of 5 mm.
If the fixing is a rear exit flue, the template provides the
position of the centre for drilling the flue hole with a core drill.
If the flue is a side exit installation then calculate the position
of the hole with a slope of 5 mm / metre to the outlet.
Connection of the boiler to the system
- Hinge down the electrical box to gain access to the valves
connections. Push in the tabs (P Fig 19) on either side of the
boiler and pivot the box forward.
- Remove the yellow caps from connecting pipes and connect
the boiler to the taps using gaskets provided in the plastic
bag.
Washer “R“ for gas connection.
Filter “F“ for cold water inlet
Fig 16
Making the Electrical Connections
Hinge down the electrical box to gain access to the
electrical connections. Push in the tabs (P Fig 19) on
either side of the boiler and pivot the box forward.
Undo the two retaining screws, remove cover and
remove cable clamp. (A Fig 19)
Connect the live and neutral wires to the multipin plug
leaving sufficient earth wire to connect to the earthing
point. (B Fig 20) Note: The connections should be made
so that should the lead be pulled from its anchorage, the
current carrying wires become taut before the earth
wire.
Fig. 19
Mains
THFRMO_TPT
connector
Fig. 20
If using a room thermostat or other external control, they can
C
be connected in place of the link on the multipin plug. (fig 21)
Note: Use only controls designed for voltage free
switching or 24V supply.
Connect multipin plug onto into the socket on the power
board. Secure the cable using the cable clamp and replace
the cover. To prevent damage, the cable should then be
routed through the cable support on the right hand side of
the chassis.
Earth pilar
Socket for
connector
Fig. 21
B
C
Pre-commissioning
Ensure that the system has been adequately flushed.
Purge gas supply of air and test for soundness.
Carry out final electrical tests to ensure the correct polarity
and earthing continuity.
DHW
Open the main cold feed valve.
Open all hot taps to purge DHW system.
Check for water soundness.
Check flow rate at the bath tap is set at 11 Itr/min for a 30°C
temperature rise.
Central Heating
Open flow and return valves on the boiler.(l8 and 29 Fig
22)
Open the automatic air vent (6 Fig 23)
Fill system and vent radiators.
Set system pressure and remove filling loop.
Check for leaks.
Manually check pump is free to turn.
Switch on electrical supply.
Turn selector switch ( 19 Fig 23) to Winter position
( heating and hot water). ‘1111 c?
u
Allow pump to run for several minutes.
Isolate electrical supply.
Drain boiler and check water filter for installation debris
Replace filter and recharge system.
Lighting the Boiler
Connect gas pressure gauge to test point ( 43 Fig. 23).
Turn on the gas supply and boiler gas tap ( 27 Fig. 22).
Ensure electrical supply is on.
Ensure all external controls are calling for heat.
Fig. 22
6
/’
21
Fig. 23
Turn selector switch ( 19 Fig. 23) to Winter position ( heating
and hot water).
‘Ill1 2
Turn the boiler thermostat to maximum (21 fig 23).
The boiler will light.
Allow the boiler to heat system.
Check that the inlet gas pressure is 20 mbar (8 in wg) with
boiler operating. (working pressure).
Check the operation of the boiler controls and safety
devices.(see separate servicing leaflet for details)
Re-flush the system to remove any dissolved oils and fluxes.
Recharge system pressure and introduce any water treatment
as required.
Post Commissioning
Ensure system pressure has been set correctly.
Set boiler thermostat and controls.
Set programmer to householder’s requirements.
Set external controls.
Handing Over to the Householder
Demonstrate the lighting and operation of the boiler.
Demonstrate how to maintain the system pressure.
Demonstrate the operation and setting of the built-in
programmer.
Explain the benefits of annual maintenance by a competent
person.
Explain how to register guarantee.
Leave users instructions, installation manual and all other
documentation with the householder.
Control panel
19. Three position Selector switch
l = Switched OFF
c
ri\
= Hot water only
$:\
*
‘1111 = Hot water + Central heating
20. User’s instruction panel.
21. ‘III1 Heating flow temperature adjustment
22. 0 Green indicator - Power ON
23. 4 Orange indicator - Burner ON
24. 4 Red indicator - Lock out / flame failure
25
“RESET’
Reset button
26. @ Pressure gauge
Isolating Taps
18. CH Flow isolating valve
27. Gas service tap
28. Water service tap
29. CH Return isolating valve
Fig. 25
18
/ I
27 28
25
29
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 0.7 bar and below 2.5 bar with the pressure
gaugea (26).
3) Open the gas tap (27) by turning from right to left. &
4) The boiler is now ready to use.
Hot Water
1) Turn selector switch (19) to position ~c . The green
“power on” indicator 0 will light.
2) Turn on a hot water tap, the orange “burner on”
indicator h will light and the water will become hot.
Heating and Hot Water
1) Turn selector switch (19) to position me ‘1111. The
green “power on” indicator 0 will light.
3) If the room thermostat (if fitted), the boiler
temperature control ‘III1 and the clock (if fitted) are all
calling for heat, the orange “burner on ” indicator 4 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 a . If this
happens press the reset button (25) and the boiler will
light.
To Turn Boiler Off Completely
1) Turn the selector switch (19) to the off position
2) Turn the gas tap (27) from left to right “STOP”.
MECHANICAL PROGRAMER
1. General layout
The mechanical clock covers a 24 hour period. Each tappet
represents 20 minutes (A Fig. 27). An override switch is
located on the right hand side of the clock (B Fig 27).
2. To set the time
To set the time of day, grasp the outer edge of the dial and
turn slowly clockwise until the correct time is lined up with the
arrow.
3. To Set the “On” and “Off” times
The clock uses a 24hours system. e.g. 8 =8.00 am and
18 = 6.00 pm “ON” periods are set by sliding all tappets
between the “ON” time and the “OFF” time to the outer edge
of the dial.The tappets remaining at the centre of the dial are
the “OFF” periods.
4. To select function mode
Put the selector switch (B) to Automatic to control the boiler by
the clock. Put the switch (B) to ON to select permanent
operation or to OFF to turn heating off permanently.
r I I I
Fig. 26
B
Fig. 27
ELECTRONIC PROGRAMER
Fig. 28
1. General Layout
In normal use the LCD display shows the day, the time and
control status. In other words whether the boiler is on or off,
whether it is permanently on or permanently off or whether the
override button has been pressed.
2. To Set the “On” and “Off” times
There is the facility for easy programming.
1. All seven days can be programmed as a block.
or
2. Monday to Friday as a block.
and then
3. Saturday and Sunday as a block
as well as
4. Changing the programme for any individual days.
It is advisable to clear the memory before starting. This is
done by pressing the reset button for a few seconds with a
pencil or similar implement. The screen will show all the
symbols.
q
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Example 1.
The boiler switches on at the same time every day of the
week.
Step 1. Press Reset button with a pencil or similar tool to clear
the memory.
Step 2. Press CH button. To select display
Step 3. Press DAY button once. Mon to Sun are displayed at
the top of the screen.
Step 4. Press the H+ (hours) button and the M+ (minutes)
button to set the first “on” time of the day.
Step 5. Press the v button to select “Switch on“ symbol @
Step 6. Press CH button to store in memory.
Step 7. Press day button to display all of the days of the
week again.
Step 8. Press the H+ and the M+ to set the first “off“ time of
the day.
Step 9. Press on v button to select “Switch off“ symbol
Step 10. Press CH to store.
Step 11. Press day, H+, M+ and then CH for each on and off
period for a single day.The whole week has now been stored.
Step 12. By repeatedly pressing CH each of the times
entered can be viewed and checked. At this stage an
individual day‘s times can be changed. When that day is
displayed, press H+ and M+ as required.
Then it is necessary to set the current day and time. Please
refer to the relevant section page 32.
0
Example 2
The boiler switches on at the same time Monday to Friday, but
at a later time at the weekend.
Step 1. Press reset button with a pencil or similar tool to clear
the memory and time (only if necessary). The screen will
show all the symbols for a few seconds.
Step 2. Press CH button. To select display
Step 3. Press day button twice. Mon to Fri is displayed at the
top of the screen.
12345
__:__
1
Step 4. Press the H+ (hours) button and the M+ (minutes)
button to set the first “on” time of the day.
Step 5. Press on g button to select “Switch on” symbol@
Step 6. Press CH button to store in memory.
Step 7. Press day button twice to display Mon to Fri again.
Step 8. Press the H+ and the M+ to set the first “off’ time of
the day.
Step 9. Press on M button to select “Switch off” symbol
Step 10. Press CH to store.
Step 11. Press day twice, H+, M+ and then CH for each on
and off period for a single day.The times for Mon to Fri have
now been stored
Then it is necessary to set the current day and time. Please
refer to the relevant section page 32.
0
For the weekend times:
Step 1. Press day three times to display Sat and Sun.
67
__:__
1
D.4Y Hi
00 0 0 OM+
CH 0
.w
. . .
1, Reset
L-l
Step 2. As before Press the H+ and the M+ to set the first
“on” time of the day.
Step 9. Press day three times, H+, M+ and then CH for each
on and off period for a single day. The times for the whole
weekend have now been stored
Step 10. By repeatedly pressing CH each of the times
entered can be viewed and checked. At this stage an
individual day’s times can be changed. When that day is
displayed, press H+ and M+ as required.
Note: If only partial information is entered and stored in
memory e.g. only hours, or no days are set, then the
switching sequence will be ignored.
To Set The Current Day And Time
Press and hold the 0 button whilst pressing the day, H+
(hours) and M+ (minutes) buttons to set the current day and
time.
The Override Button M
The override button has four functions.
Auto (starting position)
The boiler will turn on and off as programmed.
Press 8 once for advance /override
If boiler is in “off” mode will switch it on.
If boiler is in “on” mode will switch boiler Off.
Press v again for “FIX ON” [@I
Boiler is now permanently on.
Press v again for “FIX OFF”
Boiler is now permanently off.
Press v again to go back to Auto.
COI
Note :
When a manual override is used, the boiler will revert back to
the auto setting at the next switching time.When the “Fix On“
or “Fix Off’ position is used, the boiler will only revert back to
the auto position by pressing the v button.
One Hour Button 21 h
This button is used to advance or set back the time by one
hour for British Summer / Winter time. There is an indicator on
the screen.
ESP036
Chaffoteaux et Maury are continuously improving their products
prior notice and accepts no liability for any errors or omission in the information contained in this document.
0 Chaffoteaux et Maury 1996
Chaffoteaux et Maury Ltd
Trench Lock
Trench
Telford
Shropshire
TFl 4SZ
Tel: 01952 222727
Fax: 01952 243493
Cf
and
therefore reserve the right to change specifications without
January 1999
ESP036
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