Full Text Searchable PDF User Manual
c
SYSTEM BOILER
Central Heating boiler compatible with indirect cylinder
Fanned Flue system
Installation and Operating
instructions
These instructions Must Be Left With The Appliance.
Manufactures N°
Model Type
Gas Council N°
200907815037.31
Britony System II Plus 80 Nat
41 - 980 - 16
200907816037.31
Britony System II Plus 100 Nat
41 - 980 - 25
2
These instructions are suitable for the following boilers :
Britony System II Plus 80
Britony System II Plus 100
Do not forget the Logbook!
Chaffoteaux & Maury supports Benchmark, the heating industry code to ensure the correct installation, commissioning and
servicing of domestic central heating systems.
To The Householder
Make sure you have a completed Log Book for your boiler. This is the record of the commissioning of the boiler to the
manufacturer’s instructions. It contains important information about your particular installation that may be required by
service engineers. The Log Book will also provide contact details for the installer should you need guidance in the use of this
appliance or if there are any problems.
As with your car, your boiler will work more reliably and efficiently if regularly serviced. We recommend an annual service
check. The service history of the appliance will be marked on the Log Book.
In the unlikely event of any problems with your boiler or system you should first contact your installer. If there is a fault with
the boiler during its warranty period which your installer is unable to rectify they will contact our service department.
A charge may be made if Chaffoteaux & Maury Service is called out to resolve a non-product related fault.
Your statutory rights are not affected.
TO CONTACT C&M SERVICE, PLEASE CALL THE NATIONAL WARRANTY HELPLINE ON:
0870 600 9888
To The Installer
As part of the commissioning of this appliance it is vital that the Log Book is completed and given to the Householder.
Please ensure that your customer is aware of the importance of keeping the Log Book safe as a record of the installation
and the appliance service history.
Please ensure that your customer is aware of the correct operation of the system, boiler and controls.
CUSTOMER CARE
Chaffoteaux & Maury, as a leading brand of domestic and commercial water heating appliances is committed to providing
high quality products and a high quality after sales service. If it is necessary to contact an engineer, then telephone the
national warranty helpline 0870 600 9888.
Advice on installation or servicing can also be obtained by contacting the Chaffoteaux Technical Department.
Tel: 0870 241 8180
Fax: 01494 459775
GUARANTEE
The manufacturer`s guarantee is for 12 months from the date of purchase. The guarantee is invalidated if the appliance is
not installed in accordance with the recommendations made herein or in a manner not approved by the manufacturer. To
assist us in providing you with an efficient after sales service, please return the guarantee registration card enclosed with the
boiler without delay.
STATUTORY REQUIREMENTS
The installation of this appliance must be carried out by a CORGI Registered person or other competent person and in
accordance with the requirements of the Gas Safety (Installation and Use) Regulations.
In addition, the installation must also comply with the current byelaws of Local Water Undertakings, Building Regulations,
IEE Wiring Regulations, Local Authority Building Standards (Scotland) Regulations and the Safety Document 635 The
Electricity at work Regulation. The appliance named below does not contain any asbestos or asbestos products, or mercury
derivatives. Additional CFC’s have not been used in this product.
The appliance does not contain any potential hazard in relation to the COSHH regulations.
It should also be carried out in accordance with current editions of the following British Standards Codes of practice: 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
Institute of Gas Engineers document IGE/UP/7.
If there is a possibility of the incoming mains water pressure exceeding 10 bar then a suitable pressure limiting valve must
be fitted where pressures exced 6 bars a pressure limiting is preferred.
Precautions: During servicing, keep the dust generation to a minimum and avoid inhaling any dust and contact with the skin
and eyes. Normal handling and use will not present any discomfort, although some people with a history of skin complaints
may be susceptible to irritation. When disposing of the ceramic lining, ensure that it is securely wrapped and wash hands
after contact.
3
Page
CUSTOMER CARE .............................................
2
Guarantee............................................................
2
Statutory Requirements......................................
2
CONTENTS.........................................................
3
INTRODUCTION .................................................
3
DESCRIPTION ....................................................
4
Location of components ......................................
4
TECHNICAL DATA..............................................
5
DIMENSIONS......................................................
6
OPERATION .......................................................
7
Domestic Hot Water Mode ..................................
7
Central Heating Mode..........................................
7
INSTALLATION REQUIREMENTS .....................
8
Location ...............................................................
8
Flue......................................................................
8
Ventilation............................................................
8
Gas Supply ..........................................................
8
Electrical Supply ..................................................
8
INSTALLING THE BOILER .................................
8
Installation ...........................................................
8
Method of positioning the boiler on the wall ........
8
Connecting the boiler to the system ....................
9
Fitting the horizontal flue .....................................
9
Making the electrical connections........................
10
Page
COMMISSIONING AND TESTING .....................
11
Pre-commissioning ..............................................
11
D.H.W ..................................................................
11
Central Heating....................................................
11
Lighting the boiler ................................................
11
Post Commissioning............................................
11
Handing over to the Householder........................
11
SYSTEM GUIDANCE..........................................
12
Flushing and Water Treatment ............................
12
System Controls ..................................................
12
Bypass and pump................................................
12
Expansion Vessel ................................................
12
Filling Point ..........................................................
12
USER’S INSTRUCTIONS ...................................
13
Control panel .......................................................
13
Isolating taps .......................................................
13
Switching on ........................................................
13
Hot Water ............................................................
13
Heating and Hot Water .......................................
13
Turn off the boiler ................................................
13
The
Britony System II Plus is a fully automatic, wall mounted, low water content boiler. It is a room sealed, fan
assisted, balanced flued appliance . The appliance includes a diverter valve and so can provide central heating
and hot water flow for an indirect cylinder.
It has electronic ignition and is suitable for use with 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 790 mm maximum and includes an
elbow adapter that can be rotated through 360
°
. The horizontal flue can be extended (refer to Flue Installation
Instructions), 45
°
and 90° flue bends are also available as accessories.
The
Britony System II Plus is also suitable for concentric vertical and twin pipe flueing. Adapters and
accessories are available.
The boiler is packed in three cartons:
1. the boiler,
2. the flue assembly and the pre installation kit,
3. additional accessories kit.
1
C
AUTION
! Installation, start-up, adjustments and maintenance must be performed by a competent person
only, in accordance with the current Gas Safety (Installation & Use) Regulations and the instructions
provided. Improper installation may cause damage or injury to individuals, animals and personal
property, for which the manufacturer will not be held liable. To ensure efficient and safe operation it is
recommended that the boiler is serviced anually by a competent person. If it is known that a fault exists
on the appliance, it must not be used until the fault has been corrected by a competent person.
CONTENTS
Introduction
4
2
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. - Pump
8. - Electrical box
9. - Sealed chamber
10. - Central heating flow switch
11. - Gas valve assembly
12. - Overheat sensor
13. - Flue hood with fan
14. - Central heating control thermistor
15. - Three position Selector switch
Pilot
O
Hot water only
Hot water + Central heating
16. -
Primary circuit control thermistor
17. - Heating temperature indicator
18. - Green indicator - Power ON
19. - Orange indicator - Burner ON
20. - Red indicator - Lock out / flame failure
21. - Reset button
22. - Pressure gauge
23. - Taps bracket
24. - Ignitor
25. - Three way valve
K.- Flue kit fixing point (refer to kit manual)
Fig.1
1
2
3
4
5
7
8
12
13
24
9
11
25
14
23
Fig.2
10
6
K
C
Fig.3
15
16
18
20
17
21
19
22
Description
5
3
Britony System II Plus
80
100
Appliance category
Cat II
2H 3+
Cat II
2H 3+
Heat input C/H & HW
Maximum in kW
28.7
34.6
Maximum in Btu/h
98000
117900
Heat output C/H & HW
Maximum in kW
24
28
Maximum in Btu/h
81910
95600
C/H circuit pressures
Min operating in bar
0.7
0.7
in lb/in
2
10
10
Max operating in bar
2.5
2.5
in lb/in
2
36.3
36.3
Compartment ventilation
n o t r e q u i r e d
Natural gas G20
Gas rate
Maximum in m
3
/h
2.74
3.29
Maximum in ft
3
/h
97
116
Inlet pressure
Nominal in mbar
20
20
Nominal in in wg
8
8
Burner pressure
Nominal in mbar
11
12.8
Nominal in in wg
4.4
5.1
Burner injector diameter
Natural gas G20 in mm
1.23
1.28
Britony System II Plus
80
100
PROPANE L.P.G. G31
Gas rate
Maximum in kg/h
2.00
2.42
Maximum in ft
3
/h
37
44.8
Inlet pressure
Nominal in mbar
37
37
Nominal in in wg
14.8
14.8
Burner pressure
Nominal in mbar
35
30.4
Nominal in in wg
14
12.2
BUTANE L.P.G. G30
Gas rate
Maximum in kg/h
2.04
2.45
Maximum in Lbs/h
4.50
5.40
Inlet pressure
Nominal in mbar
28
28
Nominal in in wg
11.2
11.2
Burner pressure
Nominal in mbar
26,7
24
Nominal in in wg
10.7
9.6
Burner injector diameter
LPG G30 and G31 in mm
0.70
0.76
Safety discharge
in bar
3
3
in lb/in
2
43.5
43.5
Expansion vessel
Pre-charge pressure in bar
0.7
0.7
Pre-charge pressure in lb/in
2
10
1
Net capacity at 3 bar in liter
6
6
Adjustable by-pass
Minimum flow rate in l/h
100
100
Minimum flow rate in gal/min
0.36
0.36
Maximum flow rate in l/h
700
700
Maximum flow rate in gal/min
2.56
2.56
Electrical characteristics
Supply
230 v-50 Hz
230 v-50 Hz
Consumption
150 w
150 w
Protection
IP 44
IP 44
Fuse n°1
2 A
2 A
Fuse n°2
1.25 A
1.25 A
External controls
24 v
24 v
Technical Data
6
4
Fig. 4
Ø 100
Type C 12
206
143
Ø 125
Ø 80
120
Ø 80
Type C 32 xx
Type C 32 xy
250
Ø 80
250
Ø 100
Type C 12
206
143
Ø 125
Ø 80
120
Ø 80
Type C 32 xx
Type C 32 xy
250
Ø 80
250
Type C 12
Type C 32 xx
Ø 100
Type C 12
206
143
Ø 125
Ø 80
120
Ø 80
Type C 32 xx
Type C 32 xy
250
Ø 80
250
Type C 32 xy, C52
The boiler is suitable for the flue types:
• type C 12
• type C 32 xx, C32 xy or C 52
Outer case dimensions :
- Width :
440 (minimum space required 450)
- Height :
850
- Depth :
380
All dimensions in mm
Safety valve
center line
Minimum clearances :
- Both sides
5 mm
- Above casing
170 mm
- Below casing
200 mm
- Front ( for servicing) 500 mm
- Front (in operation)
5 mm
Fig. 5
Weights
With packaging :
- Britony System II Plus 80 :
43.2kg
- Britony System II Plus 100 :
45.2kg
Without packaging :
- Britony System II Plus 80 :
41.2kg
- Britony System II Plus 100 :
43.2kg
Lift weight :
- Britony System II Plus 80 :
35.2kg
- Britony System II Plus 100 :
37.2kg
Tails diameter
I
Safety valve outlet
ø
15 mm
J
Heating flow
ø
22 mm
K
H.W. flow
ø
22 mm
L
Gas supply
ø
22 mm
N
Heating return
ø
22 mm
Dimensions
7
5
Fig. 7
Domestic Hot Water Mode
To be able to supply hot water, the selector switch (15 fig.
6) must be in either in
or
position. This will be
confirmed by the green indicator light
(18 fig. 6).
When the cylinder thermostat is calling for heat, it switches
the 3 way valve
g (fig. 7) to hot water position. Then the
hot water from the primary circuit is diverted through the
cylinder coil to heat DHW.
The first stage solenoid
a (fig. 7) and safety solenoid
c (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
(19 fig. 6) will light and the
second
stage solenoid
b (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
(20 fig. 6) will light.
The hot water flow temperature is controlled by the primary
circuit control thermistor
e (fig. 7).
When the cylinder thermostat is satisfied, the burner is
extinguished and the pump stops.
The boiler will now stay in the hot water mode for three
minutes.
Priority will be given to a demand for reheating the
cylinder.
C
15
16
18
20
17
21
19
22
a
b c
e
Fig. 6
Central Heating Mode
To be able to supply central heating, the selector switch
(15 fig. 6) must be in
position. This will be confirmed
by the green indicator light
(18 fig. 6)
When there is a demand for heating (either from the room
thermostat or the external programmer) and the boiler
temperature control is calling for heat. The pump starts and
at a flow rate of 4 ltr/min the central heating flow switch
operates allowing the ignition sequence to begin. The first
stage solenoid
a (fig. 7) and safety solenoid c (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
(19 fig. 6) will light. After 45 seconds the second stage
solenoid
b (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
(20 fig. 6) will light.
The central heating flow temperature is controlled by the
central heating control thermistor
e (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 (this «TAC delay» can be set to 30 seconds if
required, see maintenance and service guide). When the
room thermostat is satisfied the burner will switch off and the
pump will remain running for a further 3 minutes.
NB
It is possible to override the TAC delay by pressing the
cylinder
coil
g
Operation
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. A
compartment or cupboard may be used provided that it has been
purpose-built or modified for the purpose. It is not necessary to
provide permanent ventilation for cooling purposes. 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
Detailed information on flue assembly is contained in the appropriate
starter pack.
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
300 mm
- B Above an opening, window, etc
300 mm
- C Horizontally to an opening, window, etc
300 mm
- D Below gutters, soils pipes or drain pipes
75 mm
- E Below eaves
200 mm
- F Below balconies or car port roof
200 mm
- G From a vertical drain pipe or soil pipe
150 mm
- H From an internal or external corner
300 mm
- I Above ground roof or balcony level
300 mm
- J From a surface facing the terminal
600 mm
- K From a terminal facing the terminal
1200 mm
- L From an opening in the car port into the dwelling
1200 mm
- M Vertically from a terminal on the same wall
1500 mm
- N Horizontally from a terminal on the same wall
300 mm
- Q Fixed by Ubbink Rolux 4 GM flue terminal
It may be necessary to protect the terminal with a guard. Reference
should be made to the Building Regulations for guidance. Suitable
guards may be obtained from the following manufacturer:
Quinnel Barret & Quinnel Wireworks
Old Kent Road
London SE15 1NL
Tel: 0171 639 1357
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.
Gas Supply
The gas installation and soundness testing must be in accordance
with the requirements of BS 6891.The boiler requires a 22 mm
supply. Ensure that the pipe size is adequate for 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. Regulations. It must also be
possible to be able to completely isolate the appliance electrically.
Connection should be via a 3 amp fused double-pole 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.
8
6
7
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 and fitting instructions)
- Connection tails
- Screws and wall plugs
- Connection washers
- Pre-piping jig
- Installation manual
The 22 mm copper tail to connect the cylinder coil to the
Britony II System Plus is located in the box of the boiler.
Method of positioning 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. 9 and remove the outer case
as shown in fig.10.
Place the boiler on the wall on the hanging bracket.after
removing the pre-installation jig.
Fig. 8
A
B
G
H
J
C
L
M
N
K
I
D,E
F
Q
H
N
M
Q
Q
I
Installation Requirements
Installing the Boiler
9
Fig. 9
If required, there is space for all piping to pass behind the boiler. Using
fig. 12 for reference, connect the gas and water pipes and the valves to
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 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 12) 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
Connecting the boiler to the system (fig. 11)
- Hinge down the electrical box to access to the valves connections.
Push in the tabs (
P Fig 14) 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 washers provided in the plastic bag
3 x fibre washers for the water pipes
1 x washer mesh filter “
F” CH return connection.
1 x rubber washer “
R” for gas connection.
Provision must be maid to reduce as much as possible the distance
A
from the cylinder coil return to the boiler and
B
should be greater than
200 mm to avoid gravity effects.(fig. 13)
Fitting the Horizontal Flue
The instructions for the vertical and biflux (twin pipe) flue options are
included with the relevant adapter kits.
The standard flue supplied with the appliance is suitable for lengths
from 300 mm minimum to 790 mm maximum. This means for rear
flueing, the standard kit will accommodate a maximum wall thickness
of 600 mm, and for side flueing a maximum wall thickness of 587 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 away from the boiler to the terminal.
The flue should fall slightly to the terminal.
7
A
A
A A
Fig. 10
R
F
bar
0
1
3
4
I
J
L
K
N
I
Safety valve outlet
∅
15 mm
J
Heating flow
∅
22 mm
K
H.W. flow
∅
22 mm
L
Gas supply
∅
22 mm
N
Heating return
∅
22 mm
Fig. 11
Fig. 12
Fig 13
B
200 mm mini
heating return
coil return
A
Installing the Boiler
(continued)
10
7
Making the Electrical Connections
Hinge down the electrical box to gain access to the
electrical connections. Push in the tabs (
P fig. 14) on either
side of the boiler and pivot the box forward.
Undo the two retaining screws, remove cover and remove
cable clamp. (
A fig. 14)
Connect the live and neutral wires to the multipin plug
D
(fig 15) of the PCB
E leaving sufficient earth wire to
connect to the earthing point. (
B fig 16)
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.
If using a room thermostat or other external control, they
can be connected in place of the link on the multipin plug
C (fig 15).
Note: Use only controls designed for voltage free
switching or 24V supply.
Connect multipin plug
C onto into the socket on the power
board. Connect multipin plug
D to the interface PCB inside
the cover (see fig. 15).
Secure the cables using the cable clamp and replace the
cover. To prevent damage, the cables should then be
routed through the cable support on the right hand side of
the chassis.
P
A
P
cable clamp
Fig. 15
Socket for
connector
C
Fig. 16
Earth pillar
B
N
230V
PH
THERMOSTAT
R. ACC
1
32
S
SECTEUR
AQUASTAT
BALLON
PH
PH
N
N
D
E
connector
electronic board
C
connector
C
Mains
Cylinder
thermostat
Fig. 14
Installing the Boiler
(continued)
11
Wiring Scheme for Britony System Plus Boilers
N
L
12 3
N
PH
13 2
N PH
LINK
P 1
2
Cylinder
Thermostat
N L
P 1
Thermal
Cut-Out
Main Boiler
Connector
1 2
Interface PCB
Timeclock (for example
Danfoss Randall 103)
Room
Thermostat
OPTION 1
Using a hot water priority system with the hot water
on constantly and the heating timed. A simple time
clock can be used such as the Danfoss Randall 103.
P 1
2
Cylinder
Thermostat
N L
P 1
Thermal
Cut-Out
Main Boiler
Connector
Interface PCB
N
L
1 2 3
N
PH
13 2
N PH
LINK
4 5 6
H W
C H
Room Thermostat
with 24v anticipating
resistor.
Two Channel Programmer
(for example Horstman
Channelplus Model H27)
OPTION 2
Using hot water priority with a timed facility for both hot water
and central heating. A twin channel clock such as the
Horstman Channelplus Model H27 must be used.
7
Installing the Boiler
(continued)
12
8
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 hot flow tap (32 fig. 22).
Check for water soundness
Central Heating
Open flow and return valves on the boiler.(30 and 33
Fig. 22)
Open the automatic air vent (6 Fig. 17)
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 (15 fig. 17) to heating and hot water
position
Allow pump to run for several minutes.
Isolate electrical supply.
Drain boiler and check water filter (
F Fig. 11) for
installation debris.
Replace filter and recharge system.
Lighting the Boiler
Connect gas pressure gauge to test point (43 Fig. 17).
Turn on the gas supply and boiler gas tap (31 Fig. 22).
Ensure electrical supply is on.
Ensure all external controls are calling for heat.
Turn selector switch ( 15 fig. 17) to heating and hot water
position
Turn the boiler thermostat to maximum (16 fig 17).
The boiler will light.
Allow the boiler to heat system.
Check the inlet gas pressure (working pressure) while the
boiler is operating. (Refer to technical data)
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 the by pass.
Set boiler thermostat and controls.
Set programmer to householder’s requirements.
Set external controls.
Ensure the Logbook is fully completed with your contact
details and required readings and details of the
installation.
Handing Over to the Householder
Demonstrate the lighting and operation of the boiler.
Demonstrate how to maintain the system pressure.
Explain the benefits of annual maintenance by a
competent person.
Explain how to register guarantee.
Ensure the Householder countersigns the Logbook to
confirm that these demonstrations have been carried out
and understood.
Fig. 17
6
15
43
16
Commissioning and Testing
13
9
The boiler is suitable for sealed systems only. The
maximum working pressure for the appliance is 3 bar. All
fittings and pipework connected to the appliance should be
of the same standard.
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. An appropriate flushing and
descaling agent should be used, particulary if it is an
existing system. 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:
Betz Dearborn Ltd
Foundry Lane
Widnes
Cheshire
WA8 8UD
Tel: 0151 424 5351
Fernox Manufacturing
Britannica Works
Clavering
Essex
CB11 4QZ
Tel: 01799 550811
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 230V and
so only controls of 230V or that have voltage free contacts
should be used.
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. 18 ) 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 300 l/hr.The chart below indicates the
residual head of the pump available for the system.
Expansion Vessel
The expansion vessel is pre-charged to 0.7 bar (10 lb/in2).
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.
Fig. 19
Débit mini.
m CE
5
4
3
2
1
0
300 400 500 600 700 800 900 10001100 l/h
200
100
0
(robinets thermostatiques fermés)
G VF
G VO
2T
4T
Head and flow rate available
m H2O Minimum flow rate
bar
0
1
3
4
D
Fig. 18
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)
Litres
Pressure
System capacity chart
Fig. 20
System Guidance
14
10
Control panel (fig. 21)
15. - Three position Selector switch
Pilot
O
Hot water only
Hot water + Central heating
16. -
Heating flow temperature adjustment
18. -
Green indicator - Power ON
19. -
Orange indicator - Burner ON
20. -
Red indicator - Lock out / flame failure
21. - “RESET” button
22. -
Pressure gauge
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 gauge
22.
3) Open the gas tap
31 by turning from right to left.
4) The boiler is now ready to use.
Hot Water
1) Turn selector switch
15 to position
The green
"power on" indicator
will light.
2) The orange "burner on" indicator
will light and
the cylinderwill be heated.
Heating and Hot Water
1) Turn selector switch
15 to position
. The green
"power on" indicator
will light.
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
will light and the
heating will be on.
When the heating is on, it will be interrupted while the
cylinder is reheated. The boiler will switch back
automatically to heating when the cylinder is hot. This is
normal.
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
21 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
31 from left to right "STOP".
The outer control panels of the unit’s case must only be
cleaned with a damp cloth. Do not use abrasive cleaners.
The control panel can be wiped with either a damp or dry
cloth. Spray polishes mst not be used on the control panel
surface or knobs. Care must be taken in preventing any
liquid entering the appliance.
N
OTE
: This appliance must be earthed.
Isolating Taps (fig. 22)
taps shown in Open position
30. CH Flow isolating valve
31. Gas service tap
32. H.W. flow
33. CH Return isolating valve
34. Pressure relief valve
C
15
16
18
20
21
19
22
bar
0
1
3
4
30
31
32
33
34
Fig. 22
Fig. 21
User’s Instructions
15
Notes
1309457C - 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: (01494)
755600
Fax:
(01494) 459775
Internet:
www.chaffoteaux.co.uk
E-mail:
info@uk.mtsgroup.com
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.