Chaffoteaux & Maury Britony DUO 55 Installation And Operating Instruction Manual
System Plus
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Duo 55
Installation and Operating
Instruction Manual
Including User Instructions
Chaffoteaux et Maury Ltd., as a leading manufacturer of
Advice on installation or servicing can also be obtained
domestic and commercial water heating appliances, as
by contacting the Chaffoteaux Customer Services
well as domestic unvented direct and indirect storage
Department.
cylinders, is committed to providing high quality products
and a first class after sales service.
If it is necessary to
contact an engineer, then telephone your local
Chaffoteaux Service Centre.
LOCAL CHAFFOTEAUX SERVICE CENTRE
Tel: 0807 2430224
CUSTOMER SERVICES DEPARTMENT
Tel: 01952 222288 / Fax: 01952 224028
The manufacturer’s guarantee against faulty
manufacture or materials for the cylinder is 5 years and
for the electrical components, thermal controls and safety
valves is for 12 months, from the date of purchase.
The guarantee will be invalidated if the factory fitted
temperature and pressure relief valve is tampered with
or removed. The Manufacturer or Distributors cannot
be held responsible for any damage howsoever caused
and which is a consequence of the removal or tampering.
The guarantee may also be invalidated if the appliance
is not installed by a competent person in accordance
with the recommendations made herein, current
standards, regulations or in a manner not approved by
the manufacturer, modified in any way, subjected to frost,
misuse or neglect, and that factory fitted parts have had
unauthorised repairs or replacements carried out.
Evidence of purchase and the date of supply must be
made available at the time of any claim.
To assist us in providing you with an efficient after
sales service, please return the guarantee
registration card enclosed with the cylinderwithout
delay.
The installation of this appliance must be carried out by
a licenced installer and who is a CORGI Registered
person or other competent person and in accordance
with the requirements of the Gas Safety (Installation and
Use) Regulations and the Building Regulation Approved
Document G3.
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.
It should also be carried out in accordance with the
current editions of the following British Standards Codes
of practice: BS 6981, BS 5440 parts 1 and 2, BS 5449
part 1, BS 7593, BS 6789, BS 5546, BS 4814, BS 7074
parts 1 and 2, BS 7671 and BG DM2.
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 lining, ensure that it is
securely wrapped and wash hands after contact.
Installation must be carried out by a suitably qualified
installer and in accordance with current regulations
and codes of practice.
Only the safety valves supplied with the DUO 55
cylinder should be used.
The DUO 55 cylinder must not be used without the
safety valves and expansion vessel.
The boiler, cylinder and ancillary controls must be
adequately maintained.
The installation must have a sufficient and constant
supply of mains fed cold water.
l
No valve should be fitted between the expansion relief
valve and the storage cylinder.
l
The discharge pipe must be terminated where it is
visible and will not cause danger to people in the
vicinity of the discharge.
Note: The discharge could consist of scalding water and
steam.
l
Only Chaffoteaux approved replacement parts should
be used.
Customer Care ............................................... .I
Guarantee ...................................................... .I
Statutory Requirements .................................. .2
Safety Notice .................................................. .2
Contents ......................................................... .3
Specifications ................................................. .4
Britony System Plus 60
.......................................
.4
DUO 55 Cylinder ................................................. .4
Weights ............................................................... .4
Minimum Clearances ...........................................
4
Outer Case Dimensions for Cylinder & Boiler ..... .4
Dimensions
....................................................
.5
Location of Components ............................. 6-7
The Cylinder.. ....................................................... 6
Location of Components ...................................... 6
The Safety Controls Pack.. ................................... 7
Introduction .................................................... .8
Operation .................................................... 8-9
Installing the Boiler ....................................... .I0
Planning ............................................................. 10
Location ............................................................. 10
Safety Notice ...................................................... 10
Installation ............................................... 1 O-14
Positioning the Boiler & Cylinder on the Wall.. .... 10
The Boiler.. ......................................................... 10
The Cylinder ........................................................ 11
Making the Electrical Connections ..................... 13
Safety Valves ..................................................... 14
Fitting the Horizontal Flue.. ................................. 15
Refitting the Outer Cases ................................... 15
Commissioning ........................................ 16-l 7
DHW .................................................................. 16
Central Heating .................................................. 16
Lighting the Boiler.. ............................................. 17
Post Commissioning .................................... .I7
System Guidance .................................... 18-20
Flue .................................................................... 18
Ventilation ........................................................... 18
Gas Supply.. ....................................................... 18
Electrical Supply ................................................. 18
System Pressure ................................................ 19
Flushing & Water Treatment .............................. 19
System Controls ................................................. 19
Bypass & Pump.. ................................................ 19
Expansion Vessel ............................................... 20
Filling Point.. ....................................................... 20
Maintenance.. ............................................... .21
Routine Maintenance ......................................... 21
User’s Instructions.. ................................. 21-22
Switching On ...................................................... 22
Heating ............................................................... 22
Hot Water.. ......................................................... 22
To Turn Boiler Off Completely ............................ 22
Operational Faults ................................... 23-24
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BRITONY SYSTEM PLUS 60
Appliance category .................................... Cat II 2H 3+
Heat input C/H & DHW
Maximum in kW.. ................................ 20.22
Maximum in Btu/h ............................... 69005
Heat output C/H & DHW
Maximum in kW.. ................................ 18
Maximum in Btu/h ............................... 61428
C/H circuit pressures
Min operating in bar 0.7
in ib/in*
Max operating in bar
:p5
in ib/in2 36.6
Safety discharge
in bar.. ................................................. 3
in ib/in3 ................................................ 43.5
Expansion vessel
Pre-charge pressure in bar.. ............... 0.7
Pre-charge pressure in lb/in2 .............. 9.4
Net capacity at 3 bar in litre ................ 5.44
NATURAL GAS G20
Gas rate
Maximum in m3/h ................................ 2.14
Maximum in ff/h ................................. 76
Inlet pressure
Nominal in mbar ................................. 20
Nominal in in wg ................................. 8
Burner pressure
Nominal in mbar ................................. 6.7
Nominal in in wg ................................. 2.7
Burner injector diameter
Natural gas G20 in mm.. ..................... 1.23
PROPANE L.P.G. G31
Gas rate
Maximum in kg/h ................................ 1.55
Maximum in fRh ................................. 3.42
Inlet pressure
Nominal in mbar ................................. 37
Nominal in in wg ................................. 14.8
Burner pressure
Nominal in mbar ................................. 21 .O
Nominal in in wg ................................. 8.4
BUTANE L.P.G. G30
Gas rate
Maximum in kg/h ................................ 1.58
Maximum in Lbs/h .............................. 3.48
Inlet pressure
Nominal mbar ..................................... 28
Nominal in in wg ................................. 11.2
Burner pressure
Nominal in mbar .................................
Nominal in in wg .................................
Burner injector diameter
LPG G30 and G31 in mm ................... 0.70
Adjustable by-pass
Minimum flow rate in I/h ...................... 100
Minimum flow rate in gal/min .............. 0.36
Maximum flow rate in I/h ..................... 700
Maximum flow rate in gal/min ............. 2.56
Electrical characteristics
Supply.. ............................................. 230V - 50Hz
Consumption ............................................. 150W
Protection ........................................... IP 44
Fuse no 1 ............................................ 2A
Fuse no 2 ............................................ 1.25A
External controls ................................. 24V
DUO 55 CYLINDER
Storage capacity in litre ............................. 55
Max water supply pressure to
pressure reducing valve ............................ 12 bar
Operating pressure ................................... 3 bar
Expansion vessel charge pressure ........... 3 bar
Expansion valve setting.. ........................... 6 bar
Maximum primary working pressure ......... 3.5 bar
Set opening pressure of combined
temperature and pressure relief valve.. ..... 90°C
....... 7 bar
Heating capacity of the primary heat
exchanger ................................................. 23 kW
Heating duration
(primary temperature
90°C
flow @
Im3/hr DHW temperature @ 15°C
raised to 65°C in mins)
............................. 17 min
Consumption per day to maintain
the temperature @ 65°C in kWhr/24hr ...... 0.04
70% reheat time ........................................ 13 min
WEIGHTS
Britony System Plus 60
With packaging.. ........................................ 43.2 kg
Without packaging.. ................................... 41.2 kg
Lift weight .................................................. 35.2 kg
Cylinder
Weight when empty.. ................................. 33 kg
Weight when full ........................................ 90 kg
MINIMUM CLEARANCES
Both sides ................................................. 5 mm
Above casing ............................................. 170 mm
Below casing ............................................. 200 mm
Front (for servicing) ................................... 500 mm
Front (in operation) .................................... 5 mm
OUTER CASE DIMENSIONS FOR CYLINDER &
BOILER
Width ......................................................... 440
(minimum space required 450)
Height.. ...................................................... 850
Depth.. ....................................................... 380
Minimum space required when cylinder
and boiler fitted side by side ...................... 895
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Heating flow 022mm
K
H.W. flow 022mm
L
Gas supply 022mm
I I
N
Heating return
022mm
0 Pressure relief outlet 015mm
The boiler is suitable for the 4 flue types: *type Cl2 or C42 l type C32 xx or C32 xy
TypeClZorC42
Type C 32 xx Type C 32 xy
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The Cylinder
The Chaffoteaux et Maury BRITONY DUO 55 is designed
for use as an unvented storage cylinder heated indirectly
by a BRITONY SYSTEM PLUS 60 boiler. The cylinder
is supplied with a safety controls pack and expansion
vessel to allow it to be connected to the main cold water
supply. The cylinder is stainless steel with a high power
coil. It is contained within a white case insulated with a
preformed polystyrene jacket.
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
11. Overheat thermostat
12. Gas valve assembly
13. Sealed chamber
14. Flue hood with fan
16. Primary circuit control thermistor
17. Three way valve
18. CH Flow isolating valve
19. Two position selector switch
20. User’s instruction panel
21. Heating flow temperature adjustment
22. Green indicator - Power ON
23. Orange indicator - Burner ON
24. Red indicator - Lock out / flame failure
25. Reset button
26. Pressure gauge
27. Gas service tap
28. Hot water flow isolating valve
29. CH Return isolating valve
30. Pressure relief valve (boiler)
32. By pass
33. By pass adjustment screw
34. Location of central heating filter
35. Expansion relief valve also used for draining
cylinder
36. Pressure reducing valve
37. Discharge pipe to tundish
38. Cold water inlet
39. Return to boiler
40. Hot water outlet
41. Cylinder thermostat phial position
42. Flow to coil
.6
,7
8
27 29 30
6
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44. Temperature selector
Flow and Return flexible pipes (not visible)
45. Temperature and pressure relief valve
46. Chassis
47. DHW expansion vessel
48. Cylinder
49. Pressure test point
The Safety Controls Pack
To enable the cylinder to comply with the current
regulations it is supplied with a safety controls pack.
This comprises:
Pressure regulator
with integral strainer to ensure a
constant pressure to the hot water system
Check valve
(non return valve) to prevent the back
feeding of hot water to the cold main.
Expansion vessel
to take up the expansion of the water
when it is heated.
Expansion relief valve
to prevent over expansion of
the water in the system (also used as drain-off for
cylinder).
Pressure relief valve
to prevent over pressurisation of
the system.
Temperature relief valve
to provide a safety outlet in
the event of overheating.
Cylinder thermostat
to control the temperature of water
in the cylinder.
Tundish
to collect and provide an air break for the
discharge pipes from the temperature and pressure relief
valves. The discharge must be terminated in a safe
and visible location.
42
40
39 38 37 36
View from underneath cylinder
19 20
21 22
26
44
18
28
27 33 29
48
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