Chaffoteaux & Maury Dua 120, Dua 150, Duo 200 Installation And Maintenance Instruction Manual
Supplied By www.heating spares.co Tel. 0161 620 6677
Installation and Maintenance
Instruction Manual
Including User Instructions
CaNI
CHAFFOTEAUX8Md”RY
Supplied By www.heating spares.co Tel. 0161 620 6677
Chaffoteaux & Maury Ltd., as a leading manufacturer of
domestic and commercial water heating appliances, as
well as domestic unvented direct and indirect storage
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 243 0224
Advice on installation or servicing can also be obtained
by contacting the Chaffoteaux Customer Services
Department.
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.
CUSTOMER SERVICES DEPARTMENT
Tel : 01952 222288 Fax. 01952 22402
The manufacturer’s guarantee against faulty construction
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.
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 cylinder
should be used.
The cylinder must not be used without the safety
valves and expansion vessels.
The cylinder must not be used with a boiler without
thermostatic control.
The cylinder and ancillary controls must be adequately
maintained.
To assist us in providing you with an efficient after
sales service, please return the guarantee
registration card enclosed with the cylinder without
delay.
l
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
Only Chaffoteaux and Maury approved replacement
parts should be used.
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.
1
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C&M
Supplied By www.heating spares.co Tel. 0161 620 6677
page
iwe
Customer Care and
Safety
Notice
Contents
Table
of Figures..
Introduction
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Specifications
Dimensions
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Location of Components
The Cylinder..
Installation
Planning ..............................................................
Installation
Fitting Safety Components
Discharge Pipes .................................................
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...........................................................
Guarantee..
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Wiring
.I
1
.2
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Direct System
Indirect system
Britony System Plus Boiler
Britony System Boiler
.2
Commissioning..
.3
.3
.4
.5
.5
.7
7
7
.7
.7
Filling the Cylinder..
Check the operation of the safety valves
Direct Heating
Indirect Heating
Post Commissioning
Handing Over to the Householder..
Maintenance
Routine Maintenance
Fault Finding Charts
Spare Parts
Spare Parts Short List
User’s Instructions..
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Units
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List.. ..........................................
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.8
8
9
9
11
12
12
12
12
12
12
12
13
13
14
17
17
18
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Dimensions..
Combination safety control valves
Cylinder connected to System
Plus Boiler
Cylinder connected to System Boiler..
Discharge pipe arrangement
Discharge pipe sizing
Wiring for electrical element
Thermostat connections
Thermostat re-set button
Electrical box detail on boiler..
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........... 5
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................. 9
paw
4
5
..... 6
7
7
8
9
9
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
paw
Hot water on constant and central
heating timed
Hot water and heating timed
Britony System boiler using
2 x two port valves 11
Deteriorating flow from taps
Cold water from taps
Discharge from expansion relief valve.. 15
Discharge from temperature and
pressure relief valve
10
10
14
14
16
2
Supplied By www.heating spares.co Tel. 0161 620 6677
The Chaffoteaux & Maury DUO 120, 150 and 200 are
designed for use as unvented storage cylinders to be
heated indirectly by a sealed system boiler or directly
by the ceramic core electrical element included with
them. The cylinders are enamelled steel with a high
power coil. They are contained within a white case
insulated with CFC free polyurethane foam. There is a
magnesium anode to protect the cylinders against
corrosion.
The unvented storage cylinders will provide the
advantages of mains pressure and higher flow rates to
taps and showers.
Supplied directly from the main water supply they do
not need a separate feed cistern or vent pipe in the loft
space. They can benefit from the high efficiency and
fast recovery provided by modern low water content
sealed system boilers and particularly when used in
conjunction with Chaffoteaux & Maury BRITONY
SYSTEM, SYSTEM PLUS, or COMBI BOILERS. A
better flow rate at main pressure can usually be achieved
when compared with vented or instantaneous systems.
The cylinders have been tested and approved by the
WRc as meeting with the requirements of EN 60335
2.21. EN 60529.
The cylinders should be stored and installed in an upright
position and be protected from extremes of temperature
and humidity at all times. They must never be lifted or
carried by the flow and return pipes or connections.
DUO Cylinders
Storage Capacity ltrs
Weight of unit when empty
Weight of unit when full
Maximum operating pressure
Expansion vessel charge pressure
Expansion relief valve setting
Maximum primary working pressure
Set opening pressure of temperature and pressure
relief valve
Set opening temperature of temperature and pressure
relief valve
Draw-off rate
Consumption per day to maintain 65°C in kW per 24h
Electrical protection index
Indirect System
Capacity of primary coil
Heating area primary coil
Heating duration (Domestic water raised from 15°C to 65°C)
Indirect heating power (primary flow temp. 82°C @ 900Vhr)
120 150
113 140
58kg
171kg 212kg
6bar 6bar
3bar 3bar
6bar 6bar
3.5bar 3.5bar
7bar 7bar
92°C 92°C
301tr 301tr
1.2
IPX3 IPX3
71tr 1 Oltr
0.83m2 1.15m2
18min 17min
21kW 27.2kW
72kg
1.55
200
190
83kg
273kg
6bar
3bar
6bar
3.5bar
7bar
92°C
301tr
1.75
IPX3
1 Oltr
1.15m2
22min
27.2kW
Direct System
Electrical power
Nominal current
Heating duration (Domestic water raised from 10°C to 65°C)
Efficiency
3kW 3kW
12.5A 12.5A
2h 45
0.89 0.91
3h 20
3kW
12.5A
4h 30
0.93
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Minimum clearance 500mm
Domestic hot water outlet M 3/4” G
c
f
nl
v
ll4
1
Cold water inlet M 3/4” G
Flow from heating boiler M 1” G
----.
t
280
-
J
1
Drain point M 3/4” G
\
-y--I---yq-q---
Minimum clearance
600mm
+0550-i
, 230 ,
.
Fig. 1 - Dimensions
A B
re and pressure
/ I= ‘2/J” G
C D
120 I
150 I 1150mm
200 I
960mm
1435mm
935mm
1125mm 300mm
1401mm
300mm
300mm
350mm
500mm
500mm
4
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The Cylinder
To enable the cylinder to comply with the current
regulations, it is supplied with a safety controls pack.
This comprises:
1. Cold water inlet
2. Pressure reducing valve with integral strainer
3. Check valve (non return valve)
4. Expansion relief valve
5. Cylinder thermostat and overheat thermostat
beneath cover
6. Temperature and pressure relief valve
7. Expansion vessel
8. Tundish
9. Drain valve
10. Two port motorized safety cut-off valve
11. Balanced cold water supply
12. Connecting pipe to expansion vessel
13. Cold water inlet pipe to cylinder
14. Hot water outlet pipe
15. Flow from boiler to cylinder coil
16. Return from coil to boiler
17. Electrical supply for direct element
18. Cover for electrical element and thermostat
19. Discharge pipe
20. Flow to central heating
21. Gas supply
22. Return from central heating
23. Electrical connection from cylinder thermostat to
boiler
24. Central heating zone valve
2
Fig. 2 - Combination safety control valves
4
Fig. 3 - Cylinder connected to System Plus Boiler
5
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C&M
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