Viessmann Vitocell 200 Cylinder Technical data

Viessmann Vitocell 200 Cylinder Technical data
Design, Installation,
User & Servicing
Instructions
An unvented hot water storage
appliance complying with the
requirements of Building Regulations
Approved Document G3 and
manufactured in accordance with
BS EN 12897, the specification for
unvented water storage vessels.
in the interest of continuously
improving the Vitocell 200 Cylinder
range, Viessmann reserve the right to
modify the product without notice, and
in these circumstances this booklet,
which is accurate at the time of printing,
should be disregarded.
CONTENTS
These instructions should be read in conjunction with the installation/servicing
instructions issued by the manufacturer of the heat source being used.
Any installation must be in accordance with the relevant requirements of the Gas
Safety Regulations, Building Regulations, I.E.E. Wiring Regulations and the Water Fitting
Regulations (England and Wales) or Water Byelaws (Scotland). It should be read in
accordance with the relevant recommendations of the following:
BS 6798; BS 5549; BS 5546;
BS 5440:1; BS 5440:2; CP 331:3
BS 6700: BS 5258 and BS 7593: 1992
ISSUE 4.11: 04-10
Section
Page
DESIGN
Description
Technical Data
System Details
3
6
8
Viessmann Vitocell 200 Cylinder is covered by Section G3 of the Building Regulations
(England and Wales) Technical Standard P3 (Scotland) and Building Regulation P5 (Northern
Ireland. Compliance can be achieved via a Competent Person Self Certification Scheme or
notificaton of installation to the Local Authority Building Control Department.
INSTALLATION
Installation
Commissioning
10
20
It must be installed by a competent person as defined by the relevant regulations.
Manufacturers notes must NOT be taken as over-riding statutory obligations.
USER INSTRUCTIONS
21
SERVICING
Servicing and Maintenance
Fault Finding
Spare Parts List
22
23
26
ADDENDIX
Addendix A
Addendix B
27
28
This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge unless
they have been given supervision or instruction concerning use of the appliance by
a person responsible for their safety. Children should be supervised at all times to
ensure they do not play with the appliance.
This information is provided to assist generally in the selection of equipment.
Responsibility for selection and specification of our equipment must however remain that
of our customer and any experts or consultants concerned with the installation(s).
Please note: that we do not therefore accept any responsibility for matters of design
selection or specification, for the effectiveness of an installation or system containing
one of our products unless specifically requested to do so in writing.
All goods are sold subject to our conditions of sale which are set out at the rear of this
specification. In the interest of continuously improving the Viessmann Vitocell 200
Cylinder range, Viessmann Limited reserve the right to modify the product without
notice, and in these circumstances this booklet, which is accurate at the time of printing,
should be disregarded. An updated set of instructions will be produced and supplied
with new appliances and will be made available for other appliances on request.
A KIWA PRODUCT APPROVED TO COMPLY WITH ALL RELEVANT PARTS OF THE BUILDING
REGULATIONS AND WATER SUPPLY (WATER FITTINGS) REGULATIONS.
VIESSMANN VITOCELL 200 CYLINDER IS PRODUCED UNDER AN ISO 9001:2000 QUALITY
MANAGEMENT SYSTEM APPROVED BY BSI.
As part of the industry wide “benchmark” initiative all Viessmann Vitocell 200 Cylinder
appliances now include a Benchmark Installation, Commissioning and Service Record
Log Book. Please read carefully and complete all sections relevant to the appliance
installation. Carrying out the work required and completing the Log Book will satisfy the
requirements of the Building Regulations for commissioning as set out in the Domestic
Heating Compliance Guide. The details of the Log Book will be required in the event of
any warranty work being required. There is also a section to be completed after each
regular service visit. The completed Log Book and these instructions should be left
with the cylinder.
Page 2
DESIGN
Maintenance
Supplied By: Viessmann Ltd
Maximum inlet pressure to
Pressure reducing valve
Operating pressure (PRV setting)
Expansion vessel charge pressure
Expansion relief valve setting
Opening pressure of P & T Relief Valve
Opening temperature of P & T Relief Valve
Energy cut-out thermostat setting
Max. working pressure - Primary heat exchanger (Indirect models)
Max. working pressure - Solar heat exchanger (Solar models)
Immersion heater rating 12 bar
3 bar
3 bar
4.75 bar
6 bar
95°C
80°C
6 bar
10 bar
3kW, 240V AC
All cylinders are manufactured in accordance with the requirements of BS EN 12897
The tundish must be positioned so that it is visible to the occupant and is away from
electrical devices.
Components supplied with Stainless Lite:
• Cold water inlet PRV combination valve/expansion relief
• Pressure and temperature relief valve
• Control thermostat
• Energy cut-out thermostat
• Energy cut-out motorised valve (indirects only)
• Tundish
• 3kW Immersion heater
• Expansion vessel/mounting bracket/flexible hose
• Technical/user product literature
(Note: Please refer to tables 1 and 2 on pages 6-9 to confirm the quantity of immersion
heaters supplied with the unit)
In any situation where the volume of heated pipework (eg. secondary circulation pipes
or manifold pipework for multiple units) exceeds 10 litres, then an additional expansion
vessel must be fitted to accommodate the extra expansion volume.
Handling Before Installation
Viessmann Vitocell 200 Cylinder must be handled with care and stored the correct
way up in a dry place. Any manual handling/lifting operations will need to comply
with the requirements of the Manual Handling Operations Regulations issued by the
H.S.E. The appliance can be moved using a sack truck on the rear face although care
should be taken and the route should be even. In apartment buildings containing a
number of storeys we would recommend that the appliances are moved vertically
in a mechanical lift. If it is proposed to use a crane, expert advice should be obtained
regarding the need for slings, lifting beams etc.
It is essential that these checks be carried out
at the time of boiler maintenance by a qualified
installer:
1. Manually open the relief valves in turn, and
check that water is discharged from the
valves and runs freely through the tundish
and out at the discharge point. Ensure that
the valves re-seat satisfactorily. (Note - the
water may be very hot).
2. It is important to check that the discharge
pipework is carrying the water away
adequately. Check for blockages etc. if it is
not.
3. Turn the mains water off and remove and
clean the strainer element in the Pressure
Reducing Valve.
4. Check the charge pressure in the expansion
vessel and repressurise if required
5. Re-fill the system and ensure that all relief
valves have re-seated.
6. The Benchmark log book supplied should be
updated at each service.
7. Check the water pressure downstream of the
combination valve is 3 bar in static condition.
8. Check and if necessary, descale the heat
exchanger in hard water areas ie. above
200ppm (mg/l).
Note:
The cylinder is factory fitted with a temperature
& pressure relief valve that must not be used for
any other purpose or removed.
The cylinder is factory fitted with immersion
heaters with thermal cut outs. Immersions
without thermal cut outs must not be fitted.
DESCRIPTION
A specific manual handling assessment is shown in Appendix B at the rear of this
manual.
Modifications should not be made to this
product. Replacement parts, including immersion
heaters, should be purchased from Viessmann
Limited, or agents approved by them. Unvented
hot water storage vessels need regular routine
checks, and these are detailed below. It is for this
reason that this manual must always be left with
the Viessmann Vitocell 200 Cylinder.
Page 3
DESIGN
Figure 1
Introduction
Viessmann Vitocell 200 Cylinder is a range
of unvented hot water storage cylinders,
manufactured in the latest high quality duplex
stainless steel. They are designed to provide
mains pressure hot water and are supplied as a
package which complies with Section G3 of the
Building Regulations. The appliance is extremely
well insulated using high density HCFC free foam
insulation with an ozone depleting potential (ODP)
of zero and a global warming potential (GWP) of
1. It is fitted with all necessary safety devices and
supplied with all the necessary control devices to
make installation on site as easy as possible.
Viessmann Vitocell 200 Cylinder is available
in two basic variants:
1. Viessmann Vitocell 200-V Cylinder - For
use with gas or oil boilers (Figure 1). Vitocell
200 Cylinders must not be used with solid
fuel boilers or steam as the energy source.
2. Viessmann Vitocell 200-B Solar Cylinder
- For providing hot water by solar gains
and gas or oil boilers (Figure 2). Unvented
cylinders must not be used with solid fuel
boilers or steam as the energy source.
Viessmann Vitocell 200-V Cylinder
Pipework is not supplied by manufacturer,
but to be supplied and fitted by installer.
Viessmann Vitocell 200-V Cylinder
Viessmann Vitocell 200-V Cylinder is an unvented
hot water storage cylinder and is provided with
a high efficiency internal primary coil which is
designed for use with a gas or oil boiler and
is suitable for both open vented and sealed
pumped primary systems.
When used with a sealed heating system the
boiler must incorporate its own energy cut-out
overheat thermostat.
DESCRIPTION
Viessmann Vitocell 200-V Cylinder models are
listed in Table 1 on Page 6 & 7.
Page 4
DESIGN
Viessmann Vitocell 200-B Solar Cylinder
Viessmann Vitocell 200-B Solar Cylinder is an
unvented hot water storage cylinder and is
provided with a high efficiency internal primary
coil which is designed for use with a gas or oil
boiler and is suitable for both open vented and
sealed pumped primary systems.
Figure 2
When used with a sealed heating system the
boiler must incorporate its own energy cut-out
overheat thermostat.
A high efficiency second solar coil is positioned
below the primary coil to ensure maximum
benefit of solar gain energy.
Viessmann Vitocell 200-B Solar Cylinder models
are listed in Table 1 on Page 6 & 7.
Note:
The cold supply elbow c/w drain tapping
must be fitted as shown in figs 1, 2, 3 and 4.
A flexible hose can then be connected to the
drain tapping and, providing the hose runs
below the lowest level of the cylinder, then
all the water contents can be drained out by
syphonic action.
Viessmann Vitocell 200-B Solar Cylinder
DESCRIPTION
Pipework is not supplied by manufacturer,
but to be supplied and fitted by installer.
Page 5
DESIGN
Vitocell 200-V
C
J
F
I
K
I
P
E
M
L
E
H
F
J
G
D
G
N
C
B
B
A
A
Vitocell 200-B Solar
12
732
550
490
n/a
352
367
n/a
40
367
120
22
142
120
3
12
920
550
678
n/a
352
367
n/a
67
367
150
26
176
150
3
18
1107
550
865
n/a
392
442
n/a
92
407
180
28
208
180
3
18
1295
550
1053
n/a
432
442
n/a
116
447
210
33
243
210
3
24
1483
550
1241
1127
432
442
n/a
145
482
250
38
288
250
3
24
1733
550
1491
1377
927
522
512
109
577
300
44
344
300
3
35
2020
550
1777
1577
1242
522
512
130
677
210
35
245
210
3
24
1483
550
1241
1127
822
437
n/a
95
837
250
40
290
250
3
24
1733
550
1491
1377
947
522
n/a
115
962
300
46
346
300
3
35
2020
550
1777
1577
1042
522
n/a
140
1092
Overall Height
Dual Control & Overheat Stat
3
Volume of On Peak Water
Heated
90
Off Peak Immersion
Heater - Low Level
109
Cold Feed 22mm
Compression Connection
19
mm
On Peak Immersion
Heater - High Level
90
Litres A=mm
22mm Secondary
Return Tapping
bar
Pressure & Temperature
Relief Valve 6bar 95°C
Pressure Regulator 3 bar inlet
group c/w balance cold supply,
expansion vessel connection and
expansion valve set at 4.75 bar
Litres
Overall Diameter
Capacity (Total Volume)
kg
Expansion Vessel size.
Pre-charged to 3 bar
Weight - Full
kg
Model
Weight - Empty
Table 1
B=mm C=mm D=mm E=mm F=mm Litres G=mm
TECHNICAL DATA
Vitocell 200-V
Vitocell 200-B Solar
Page 6
DESIGN
NOTES
1. Not all models - see table 1.
2. Recovery times based on Primary
Coil/I.H. duty (ie. assumes the boiler
output is adequate).
3. All connections are supplied with
compression fittings for direct
connection to copper pipework.
15,00º
0º
35,0
Pressure Loss Across
Primary Heater Coil
Surface Area of
Solar Heater Coil
Pressure Loss Across Solar Heater
Coil
Heat Up Time from 15°C to 60°C
(applies to Primary Heat Source only)
Recovery Time after 70% Draw Off
(applies to Primary Heat Source only)
Standing Losses kWhr/24hr
Dedicated Solar Volume
H=mm I=mm J=mm K=mm L=mm M=mm N=mm P=mm
0º
Surface Area of
Primary Heater Coil
Solar Pocket
0
45,
Solar Pocket
Dual Control & Overheat Stat
22mm Solar Flow
Compression Connection
22mm Solar Return
Compression Connection
22mm Primary Flow Compression
Connection
22mm Primary Return
Compression Connection
Extra Stat Pocket
For Boiler Use If Required
40,0
0º
kW
m2
bar
m2
bar
min
min
kWh
Litres
367
223
312
n/a
n/a
n/a
n/a
n/a
16.5
0.59
0.165
n/a
n/a
21
16
0.80
n/a
367
223
312
n/a
n/a
n/a
n/a
n/a
18
0.59
0.165
n/a
n/a
27
19
1.00
n/a
407
223
392
n/a
n/a
n/a
n/a
n/a
18.5
0.68
0.191
n/a
n/a
28
19
1.20
n/a
447
223
392
n/a
n/a
n/a
n/a
n/a
19
0.78
0.216
n/a
n/a
33
21
1.40
n/a
482
223
392
n/a
n/a
n/a
n/a
n/a
20.5
0.78
0.216
n/a
n/a
41
26
1.60
n/a
577
223
472
n/a
n/a
n/a
n/a
n/a
21.5
0.97
0.241
n/a
n/a
44
30
1.75
n/a
677
223
522
n/a
n/a
n/a
n/a
n/a
25
0.97
0.241
n/a
n/a
48
32
1.93
n/a
n/a
522
782
223
352
419
1000
203
18.5
0.68
0.191
0.680
0.191
35
16
1.60
70
n/a
607
907
223
472
539
1180
262
19
0.78
0.216
0.970
0.241
38
19
1.75
84
n/a
702
1002
223
472
539
1367
262
20.5
0.78
0.216
0.970
0.241
41
20
1.93
100
Page 7
TECHNICAL DATA
º
kW Rating of Primary Coil
25,00
DESIGN
Viessmann Vitocell 200-V Cylinder
1
Basic Appliance
1. Hot water draw off (22mm) compression
2. Temperature & pressure relief valve 95°/6 bar
3. Hot water secondary return 22mm
(not fitted to smaller sizes, see table 1)
4. Immersion heater 1¾” BSP 3kW
5. 22mm cold supply compression
6. Immersion heater 1¾” BSP 3kW
7. Dual control/overheat stat pocket (22mm)
8. Boiler control sensor pocket (spare)
9. Primary return (22mm)
10. Primary flow (22mm))
2
3
4
7
8
6
Component kit supplied separately
A. Combination inlet group incorporating
pressure reducing valve, strainer, check
valve, balance cold take off point, expansion
relief valve and expansion vessel connection
points.
B. Potable expansion vessels c/w flexible hose
and wall bracket
C. Tundish
D. Dual control thermostat and combined
overheat thermostat
E. Two port (22mm) zone valve for
primary circuit
F. Wiring junction box for primary system
5
10
9
SYSTEM DETAILS
Typical arrangement of component kit shown fitted to the appliance for clarity
Pipework to be supplied and fitted by installer.
Page 8
DESIGN
1
2
3
12
9
7
6
11
12
4
8
5
10
Basic Appliance
1. Hot water draw off (22mm) compression
2. Temperature & pressure relief valve 95°/6 bar
3. Hot water secondary return 22mm
(not fitted to smaller sizes, see table 1)
4. Immersion heater 1¾” BSP 3kW
5. 22mm cold supply
6. Dual control/Overheat stat pocket
7. Primary return (22mm)
8. Primary flow (22mm)
9. Dual control/Overheat stat pocket
10. Solar coil return to panel collector (22mm)
compression
11. Solar coil flow from panel (22mm) compression
12. Solar thermostat pocket
Component kit supplied separately
A. Combination inlet group incorporating
pressure reducing valve, strainer, check valve,
balance cold take off point, expansion relief
valve and expansion vessel connection points.
B. Potable expansion vessels c/w flexible hose
and wall bracket
C. Tundish
D. Dual control thermostat and combined
overheat thermostat (x2)
E. Two port (22mm) zone valve for
primary circuit
F. Wiring junction box for primary system
SYSTEM DETAILS
Typical arrangement of component kit shown fitted to the appliance for clarity
Pipework to be supplied and fitted by installer.
Viessmann Vitocell 200-B Solar Cylinder
Page 9
INSTALLATION
General Design Considerations
The cupboard footprint needs to be at least
650mm square for units up to 300 litres and
730mm for 400 litre.
The base chosen for the cylinder should be
level and capable of supporting the weight of
the unit when full of water as shown in General
Data. The discharge pipework for the safety
valves must have a minimum fall of 1 : 200 from
the unit to a safe discharge point. All exposed
pipework should be insulated and the unit
should NOT be fixed in a location where the
contents could freeze.
The pipe connecting the boiler flow to the
appliance must not be less than 22mm
copper or equivalent.
Combination Valve
I.V.
I.V.
Mains Water Supply
If two Viessmann Vitocell 200 Cylinders are coupled together the secondary inlet and
outlet pipes must be balanced. The units must be fitted on the same level.
Note: No valves must be fitted between the expansion vessel and the storage
cylinder(s).
INSTALLATION
Model Selection Guide
Max hot water demand
Max number
of bed spaces
(Bedrooms)
1 shower room
Bedsit (0)
90
1 bathroom
2 (2)
120
1 bathroom
4 (3)
120
1 bathroom + separate shower room
6 (4)
150
1 bathroom + 2 separate shower rooms or 2
bathrooms
7 (5)
180
2 bathrooms + separate shower room
7 (5)
210
2 bathrooms + 2 separate shower rooms
7 (5)
250
3 bathrooms + 2 separate showers rooms
9 (6)
300
Litres
Solar Model Selection Guide
Max hot water demand
Max floor
area (m2)
Bedrooms
Litres
1 bathroom + 1 shower room
66
1-3
210
1 bathroom + 2 shower rooms
84
2-4
250
2 bathrooms + 1 shower room
113
3-4
300
Page 10
Existing properties with a 15mm supply will be
satisfactory provided the local mains pressure
is good, but should be confined to single
bathroom properties. For new properties where
simultaneous demand is required to more than
one bathroom or a bathroom and one or more
en-suites, the communication and service pipe
into the dwelling should be a minimum of
22mm (usually in the form of a 25mm MDPE
supply). The minimum recommended static
pressure to operate a Viessmann Vitocell 200
Cylinder domestic system is 3 bar. There should
be a flow of at least 30 litres per minute or above
available into the property. Normally Viessmann
Vitocell 200 Cylinder provides well in excess of
40 litres/min in most conditions. Flow rates
for ALL mains pressure systems are subject
to district pressures and system dynamic loss.
Particularly on larger properties with more
than one bathroom, the pipe sizes should be
calculated in accordance with BS6700.
Model Selection
Where selecting a solar model, it is important to
check the dedicated solar volume (shown in tables 1
& 2) is suitable for the total floor area of the dwelling
to ensure compliance with Building Regulations.The
maximum floor area of the dwelling permitted for
the models is shown opposite.
The suggested model sizes are based on
typical hot water usage. For high specification
dwellings an increase of one model size should
be considered.
INSTALLATION
General Restrictions
Pipe Layout
a. The highest hot or cold water draw off point should not exceed 10 metres above the
Pressure Reducing Valve.
b. An ascending spray type bidet or any other appliance with a Class 1 back-syphonage
risk requiring a type A air gap should not be used.
c. Viessmann Vitocell 200 Cylinder should not be used where steam is the primary
heating medium, or in a situation where maintenance is likely to be neglected.
d. Unvented cylinders are not suitable for use with solid fuel boilers.
e. If the supply to the mixer fittings (other than a dual outlet type) is not taken
from the balanced supply the system will become over pressurized and cause the
pressure relief valve to discharge. Over time this could also cause the premature
failure of the appliance itself which will not be covered by the warranty,
f. In larger properties with a number of bathrooms/en-suites and long pipe runs
we would recommend that the balanced cold supply is provided with its own
pressure reducing valve and is not taken from the balanced cold connection on the
combination valve. In this case it will also be necessary to fit a small expansion vessel
on the balanced cold water system to accommodate the pressure rise caused by the
increase in temperature of the balanced cold water.
g. Check the performance requirements of the terminal fittings with regard to flow/
pressure are suitable.
In all mains pressure installations it is important
to remember that the incoming cold supply
must be shared between all terminal fittings. It
is important that a 22mm supply is brought to
the appliance and a 22mm take-off is continued
at least to the bath. If there are two baths, 28mm
pipework should be considered. One metre of
smaller diameter pipework, or flow restrictors,
should be provided on the final connection to
all outlets so as to balance the water available.
In any event the distribution pipework should
generally be in accordance with EN806:1.
Shower Fittings
Plastic Pipework
This appliance is suitable for use with
plastic pipework as long as the material
is recommended for the purpose by the
manufacturer and is installed fully in accordance
with their recommendations.
Secondary Hot Water Circulation
Aerated taps are recommended to prevent splashing. Any type of shower mixing valve
can be used as long as both the hot and cold supplies are mains fed. However, all
mains pressure systems are subject to dynamic changes particularly when other hot
and cold taps/showers are opened and closed, which will cause changes in the water
temperature at mixed water outlets such as showers. For this reason and because
these are now no more expensive than a manual shower we strongly recommend
the use of thermostatic showers with this appliance. These must be used in 3 storey
properties where the impact on pressure/temperature of opening another tap in the
system is greater than normal. The shower head provided must also be suitable for
mains pressure supplies.
Some models are fitted with a secondary return
tapping as standard (see table 1 for details).
If fitted, an extra expansion vessel may be
necessary. A non-return valve MUST be FITTED
near the return connection. No valve or terminal
fitting should be installed between the non
return valve and the cylinder. (See schematic
arrangement on page 13.)
DHW
SH
P&T
WHB
WC
ERV/NRV
PRV
SCV
SCV
BATH
Note:
Cold supplies to single taps must be
taken from the mains cold water
system.
Cold supplies to mixer taps must be
taken from the balanced cold water
connection on the combination
valve.
WM or DWM
W.C.
DCV
DC
DC
M
DC
WATER SOFTENER (IF NECESSARY)
INCOMING COLD SUPPLY
Page 11
DC
INSTALLATION
WHB
SINK
TO
EXTERNAL
TAP
DC
INSTALLATION
Pressure & Temperature/expansion Relief
Valve Pipework
Typical Discharge Pipe Arrangement
15 mm
discharge
pipe
Expansion
relief
valve
The relief valve should be installed to discharge
in accordance with G3 of the Approved
Document of the Building Regulations and
should be piped to where it is visible, but will
not cause danger to persons or damage to
materials.
500 mm max.
P&T
Relief
Valve
Dotted line showing
alternative route with
single tundish being used
300 mm
min.
22 mm metal pipe with continuous
fall up to 9m equivalent length (D2).
Discharge below
fixed grating
NOTES:
Fixed
Grating
The discharge will consist of scalding
water and steam. Asphalt, roofing felt
and non-metallic rainwater goods may
be damaged by such discharges.
The two safety valves will only discharge
water under fault conditions. When operating
normally water will not be discharged.
It is not acceptable to discharge straight
into a soil pipe.
Trapped gully
WORKED
EXAMPLE
Locations to be avoided when siting
a discharge
pipe at high level:
The example
is pipe
for G1/2
1.
Thebelow
discharge
shouldtemperature
not be located relief valve with a discharge pipe (D2)
above a and
pedestrian
area,
above
a window,
having 4 elbows
length
ofor7m
from
the tundish to the point of discharge.
door, ventilator etc.
Subsequent
freezing of the discharge
From 2.the table
below:
should not create a hazard to persons
about the building.
Maximum resistance allowed for a straight length of 22mm copper discharge pipe
3. aThe
adjacent
structure should
impervious
(D2) from
G1/2
temperature
reliefbe
valve
is: 9m subtract the resistance
for 4 x 22mm
x= dia. of discharge
to water at 80ºC.
pipe
elbows at 0.8m each = 3.2m.
Therefore the maximum permitted length equates to: 5.8m.
5.8m is less than the actual length of 7m therefore calculate the next largest size.
Maximum resistance allowed for a straight length of 28mm pipe (D2) from a G1/2
temperature relief valve equates to: 14m.
As the actual length is 7m, a 28mm (D2) copper pipe will be satisfactory.
Sizing of copper discharge pipe ‘D2’ for a temperature relief valve
with a G1/2 outlet size (as supplied)
INSTALLATION
The following information is taken from
Approved Document G3 of the Building
Regulations and is provided to assist with
the design and installation of the discharge
pipework. However, the information is not
exhaustive and reference should always be
made to Approved Document G3 of the Building
Regulations. The final decision regarding any
arrangements rests with Building Control and
it is recommended that their advice is sought
if you have any concerns regarding this aspect
of the installation.
Size of discharge
pipework
Maximum length of
straight pipe
(no bends or elbows)
Deduct the figure below
from the maximum
length for each bend or
elbow in the discharge
pipe
22mm
Up to 9m
0.8m
28mm
Up to 18m
1m
35mm
Up to 27m
1.4m
The tundish should be vertical, located in the
same space as the unvented hot water storage
system and be fitted as close as possible and
within 500mm of the safety device e.g. the
temperature relief valve.
The discharge pipe (D2) from the tundish should
terminate in a safe place where there is no risk
to persons in the vicinity of the discharge, be
of metal and:
a) Be at least one pipe size larger than the
nominal outlet size of the safety device unless
its total equivalent hydraulic resistance
exceeds that of a straight pipe 9m long
i.e. discharge pipes between 9m and 18m
equivalent resistance length should be at
least two sizes larger than the nominal outlet
size of the safety device, between 18 and
27m at least 3 sizes larger, and so on. Bends
must be taken into account in calculating
the flow resistance. Refer to the table and
the worked example.
An alter native approach for sizing
discharge pipes would be to follow BS6700
Specification for design installation, testing
and maintenance of services supplying water
for domestic use within buildings and their
curtilages.
b) Have a vertical section of pipe at least
300mm long, below the tundish before any
elbows or bends in the pipe work.
c) Be installed with a continuous fall.
Page 12
INSTALLATION
d) It is preferable for the discharge to be visible at both the tundish and the final point
of discharge but where this is not possible or practically difficult there should be
clear visibility at one or other of these locations. Examples of acceptable discharge
arrangements are:
1. Ideally below the fixed grating and above the water seal in a trapped gulley.
2. Downward discharges at a low level; i.e. up to 100mm above external surfaces
such as car parks, hard standings, grassed areas etc are acceptable providing
that where children play or otherwise come into contact with discharges, a
wire cage or similar guard is positioned to prevent contact whilst maintaining
visibility.
3. Discharges at a high level; e.g. into metal hopper and metal down pipe with the
end of the discharge pipe clearly visible (tundish visible or not) or onto a roof
capable of withstanding high temperature discharges of water and 3m from
any plastic guttering systems that would collect such discharges.
4. Where a single pipe serves a number of discharges, such as in blocks of flats,
the number served should be limited to not more than 6 systems so that any
installation can be traced reasonably easily. The single common discharge pipe
should be at least one pipe size larger than the largest individual discharge pipe
to be connected. If unvented hot water storage systems are installed where
discharges form safety devices may not be apparent i.e. in dwellings occupied by
blind, infirm or disabled people, consideration should be given to the installation
of an electronically operated device to warn when discharge takes place.
Safety
The safety devices supplied or fitted on an Viessmann Vitocell 200 Cylinder are selected
for their suitability for the temperatures and pressures involved. They must not be
changed, removed or by-passed and it is essential that only genuine replacement parts
supplied or approved by Viessmann Limited are used. This includes the immersion
heaters, which must incorporate an energy cut-out. All parts are available to approved
installers from Viessmann Limited.
Combination Inlet Group
Schematic Diagram
Combines elements 1, 2 and 3 below.
Hot Outlet
Secondary
Return Circuit
1. Pressure Reducing Valve - This must be fixed
near the cylinder. The cold water supply to
any mixer taps/showers must be taken from
the cold water tapping of this valve to ensure
balanced hot and cold pressures. This valve
is factory set to ensure the correct operating
pressure for the Viessmann Vitocell 200
Cylinder.
Tundish
Pump
Non Return
Valve
To Drain
Stop
Tap
Balanced
Cold
Outlets
Immersion Heater
ERV
Boiler
Flow
Kitchen
Cold
Tap
Expansion
Vessel
NRV
2 Port Valve
PRV
Boiler
Return
Combination
Valve
Page 13
2. Non Return Valve - This is integral with the
pressure reducing valve to prevent backflow
of hot water towards cold water draw off
points.
3. Cold Water Expansion Relief Valve - This safety
device is preset at the factory and will relieve
excess cold water pressure resulting from a
fault condition.
INSTALLATION
P&T Relief Valve
INSTALLATION
Temperature/Pressure Relief Valve
This safety device is also pre-set at the factory and relieves before the temperature
reaches 100°C. It is also a Pressure Relief Valve, and is pre-set to 6 bar.
E
L
Thermostat
N
Immersion Heaters
These are 3kW 240V AC heaters and incorporate a thermostat and a manually reset
energy cut-out which operates at 80°C. They have incalloy elements to prolong their
life expectancy in aggressive water conditions.
Please refer to table 1 to clarify how many off peak and on peak immersions are
included with the unit you require.
Where it is intended that units are fitted to offpeak circuits, then suitable controllers
such as the Horstmann off peak electric time controller will be required. External
wiring to the immersion heaters must be in accordance with the relevant IEE Wiring
Regulations and the circuit must be protected by a suitable fuse and a double pole
isolating switch.
The correct method of terminating the wiring to the immersion heater is shown
opposite.
Line Strainer
This is integral within the combination inlet group to reduce the likelihood of
contaminants fouling the valve seat. Following installation this line strainer must be
cleaned and replaced. This needs to be carried out on a regular basis. as part of the
annual maintenance/service check.
Tundish
This is to allow the discharge from any Relief Valve to be seen. It must be fitted away
from any electrical devices. See page 12 for discharge pipework details.
Safety
The immersion heaters must be earthed and they must be isolated from the mains
before the cover is removed on every occasion. Replacement immersion heaters
should be obtained from Viessmann Limited.
Control/Overheat Dual Thermostats
INSTALLATION
Care must be taken to ensure that the solar probes are fully inserted into the pockets
provided.
Page 14
Safety
Cut-out
Immersion Heater Wiring
INSTALLATION
Schematic Open Vented Primary System
Heating/primary Systems
The boiler and primary/heating systems should be
sized and installed in accordance with BS 5449.
Warming/Overflow
Pipe
F & E Cistern
Safety
Viessmann Vitocell 200 Cylinder is fitted with a
Combined Temperature/Pressure Relief Valve to
cope with any increase in system temperature
and pressure above the design limitations,
when used with boilers up to 45kW output,
which is the maximum allowed by section G3
of the Building Regulations. The primary water
temperatures should be controlled as outlined
below.
Motorised Valve
(Energy cut-out)
Minimum
distance as
required by
boiler
manufacturers
instructions
Motorised Valve
Pump
150mm max.
Primary Circuit
Boiler
It is essential that the circuit between the boiler and
the Viessmann Vitocell 200 Cylinder is pumped.
The motorised zone valve supplied should be
fitted adjacent to the unit and controlled by the
cylinder thermostat supplied. The thermostat and
motorised valve must be wired so that they both
switch off should an overheat situation develop.
It is important to follow the wiring diagram in the
Wiring Section of these instructions.
Schematic Sealed Primary System
Motorised Valve
(Energy cut-out)
Sealed Primary Circuit
Any boiler used must be fitted with an over
temperature cut-out. Unvented primary circuits
may be filled or replenished by means of a
temporary connection between the circuit and
a supply pipe provided a ‘Listed’ double check
valve or some other no less effective backflow
prevention device is permanently connected
at the inlet to the circuit and the temporary
connection is removed after use. Alternatively,
a CA device can be used, which will allow the
system to be permanently connected to the
cold mains supply. The primary system can
then be topped up, when required, in the same
way as an open vented system fitted with an
F&E Cistern.
Expansion
Vessel
Safety Valve
Gauge
Motorised Valve
Pump
Boiler
Viessmann 4-pipe System
4-Pipe System
Note
Energy cutout devices fitted
in the Viessmann boiler
The Viessmann Vitodens system boilers are
operating on sealed primary circuit and are
factory fitted with an integral diverter valve,
PRV and expansion vessel and suitable energy
cut-out device to comply with G3 requirements.
If any Vitodens system boiler is installed with a
Vitocell 200, an additional DHW cylinder sensor
kit (7179 114) is required.
Boiler
Page 15
INSTALLATION
If the Vitocell 200 is installed with a Viessmann
Vitodens condensing system boiler then it is
recommended to install the system to a 4-pipe
system as shown in the diagram opposite.
INSTALLATION
Schematic Solar System With Viessmann Boiler As Solar Controller
Solar Panel
A typical arrangement of a solar system
incorporating a Viessmann Vitocell 200-B Solar
Cylinder appliance is shown opposite.
All components in a solar primary system must
be marked or identifiable in such a way that
their design pressure and temperature can be
readily determined.
Note
Energy cutout devices fitted
in the Viessmann boiler
Solar
Controller
Expansion
Vessel
Solar Pumping Station
A safety device (pressure relief valve) to control
the risk of over-pressure in system components
should be fitted. A termination from a safety
pressure device should minimise the risk of
damage to persons or materials. Suitable
locations are a high temperature receptacle, in
internal gully or else issue externally at ground
level. High level termination from walls or on
roofs could cause injury to people or animals
below if the valve were to release scalding
water and steam.
The pipe leading to the safety device and the
collector should be of rigid and non-deformable
construction, without any possibility of
restriction or disclosure by any other fitted
component.
A more detailed diagram of our recommended
arrangement for a typical solar system is shown
on page 18.
The Viessmann solar controller ‘Solar Divicion’
complies with notes a, b and c listed below and
therefore a motorised valve is not required in
the solar circuit.
The solar pocket provided accommodates an
8mm diameter sensor which, with the sensor
located in the solar collector (or in the flow
pipe immediately adjacent to the collector),
will provide the information required by the
Vitosolic 100 controller.
Note:
The motorised valve can be omitted provided
that:
a) the solar collector is wholly above the
cylinder
b) the manual RESET high limit thermostat
acts directly onto the pump
c) check valves are present on both flow and
return to prevent gravity circulation
INSTALLATION
Solar systems designed and installed according
to Viessmann instructions will conform with
the above.
Page 16
INSTALLATION
Mixed HW out
Mains CW in
Figure 2: Cold port of the blending valve connected to balanced cold
supply - NON-RETURN VALVE MUST BE FITTED
Mixed HW out
Non-Return Valve (must be fitted)
Mains CW in
Figure 3: Cold port of the blending valve connected to mains supply
to the vessel after the inlet control group
Mixed HW out
Mains CW in
Page 17
Fitting Blending Valves To The Unvented
Viessmann Vitocell Appliances
When fitting a blending valve to the unvented
appliances, it is important that the installation
does not contravene the G3, WRC and Health
and Safety directives or the manufacturers
recommendations. If this is the case, then
the warranty should be null & void. The key
requirements to comply with these regulations
are: 1. Any fitting or material in contact with
potable water (e.g. a blending valve) must
be approved by WRC or an equivalent body.
2. Connections or wiring arrangements must
not bypass any safety devices.
3. Any expansion due to heating must not be
allowed to expand back into the cold mains.
4. The settings of any safety devices must not
be tampered with or adjusted.
The diagrams opposite shows how the
blending valve can be piped onsite.
Figure 1 shows the cold water port of the
blending valve connected to the mains cold
water supply before the inlet control group.
This arrangement is completely unacceptable
and illegal because: • the water is allowed to expand in to mains
cold water supply.
• the vessel will be charged to the incoming
mains supply which may be considerably
higher than the working pressure of the
vessel.
If this arrangement is used then the warranty
will not be valid.
Figure 2 shows the cold water port of the
blending valve connected to the balanced
cold water outlet. This arrangement will only
be acceptable if an approved non-return valve
is fitted, otherwise: • during the heating cycle, the water will
expand back into the mains supply, as the
regulating valve must not be relied upon
to act as a check valve under all operating
conditions.
• depending upon the characteristics of the
blending valve, hot water may also flow from
the balanced cold water taps.
Figure 3 shows the cold port of the blending
valve connected to the cold water supply to the
vessel after the inlet control group. This should
be the preferred method. It is recommended
that the installer should ensure that there is no
gravity circulation in the pipework connected to
the cold port. If necessary, this can be achieved
by fitting a non-return valve or using a thermal
trap.
INSTALLATION
Figure 1: Cold port of the blending valve connected to mains supply
NOT ALLOWED
INSTALLATION
Schematic Showing Solar Wiring Requirements
S1
No isolation valve
should be installed
between the solar
circuit and the safety
valve (pressure relief
valve)
1 bar
Vitosolic 100 Type SD1
Pressure
Relief Valve
Solar
Pumping
Station
Viessmann
Vitocell 200-B
Solar Cylinder
1
S1
2 3
S2
4
5
S3
6
PWM
9 10
145
11 12
13 14 15
T
T
Anti Gravity
Check Valve
N R2 N R1 N L
16 17 18 19 20 21
Anti Gravity
Check Valve
Dual Thermostat
o
+ C
o
+ C
C 1 2 C 1
INSTALLATION
Solar Coil
1
L
2
3
4
5
6
7
N
230 VAC 5 amp
Mains Supply
Page 18
8
9
10
Standard 10 way
wiring junction box
(Not supplied)
L
N
E
N
L
INSTALLATION
3
Br
Br
3
OFF
4
Br
Br
A
Or
7
HTG
B
Bl
Bl
G/Y
V4043A
TWO PORT
ZONE VALVE
Bl G/Y Gr
Br
Br
6
*Br
HW
VALVE
Br
B
HTG
VALVE
5
4
ON
G/Y
8
G/Y
Br
1
Gr
9
Bl
2
A
11
Or
Bl G/Y Or Gr
B
B Br
DHW
V4043A
TWO PORT
ZONE VALVE
Or
Br
4
4 core cable
10
B
3
B
12
Br
Br
C
1
Br
Bl
N
G/Y
E
3 core flex
White
Green / Yellow
Grey
Wh
G/Y
Gr
Green
Yellow
Y
G
Orange
Or
GAS BOILER
Note: Do not attempt
the electrical work unless
you are competent to carry
out to the above standard
flex please ensure you
use brown sleeving at
both terminating ends
to identify core potential.
The electrical installation must
comply with IEE requirements.
For electrical installation
* Blue core used
refer to BS7671
from standard 3 core
2
Br
Bl G/Y
ISSUE No : 3
B
23-09-09
Bl G/Y
S. Gatora
Br
APPROVED
*Br
1
Brown
Black
Br
B
DATE
C
Red
Blue
R
Bl
WIRE COLOUR LEGEND
DRN.
Boiler
Pump
L
Provide extra core
from terminal 12 to
L-P connection on
the boiler (shown
dotted) and remove
the boiler pump link
if the boiler has an
independant
pump output.
G/Y
Typical schematic wiring diagram for an unvented installation
(not applicable for the Viessmann 4-pipe system)
G/Y
2
2
G/Y
Bl
1
Bl
1
ON
Br
Br
Br
L
Mains Supply
Fed Via Double
Pole Isolator
230 VAC ~ 5 Amps
5 Amps
Danfoss
WB12
Wiring
Centre
Bl
N
ELECTRONICS
OFF
Control Stat
L
Overheat Stat
N
Dual Aqau Stat
Boiler Permanent Live
Boiler Neutral
Boiler Earth
E
Room Thermostat
Boiler Switch Live Demand
SL_B
CH
Boiler Controlled Pump
L_P
HW
N_P
Page 19
E_P
Central Heating Control
(S-PLAN) WIRING DIAGRAM WITH TWO 2 PORT VALVES AND BOILER CONTROLLED PUMP OVERRUN OPTION
INSTALLATION
INSTALLATION
Commissioning
Connections can come loose in transit, and all should be checked before
installation.
Ensure that the immersion heater setting is 60°C and that the wiring is in accordance
with the diagram.
Check the pressure on the air side of the expansion vessel = 3 bar. This must be done
when the volume in the cylinder is cold.
Check that the drain cock is closed, and open all the cold and hot water taps and other
terminal fittings. Allow the system to fill with water, and to run until there is no air left
in the system. Close the taps and inspect the system closely for leaks.
Manually open the Relief Valves one by one and check that water is discharged and
run freely through the tundish and out at the discharge point. The pipework should
accept full bore discharge without overflowing at the tundish, and the valve should
seat satisfactorily.
Allow the cylinder to heat to normal working temperature, then thoroughly flush the
domestic hot and cold water pipework through each tap.
NOTE: If this appliance is to be installed in other than a single domestic dwelling ie.
in an apartment block or student flats etc., the hot and cold water system will need
to be disinfected in accordance with BS6700 and the Water Regulations.
Because the Viessmann appliance is stainless steel, the use of chlorine as the
disinfection agent can cause damage unless the appliance is adequately flushed
and refilled with the mains water immediately on completion of the disinfection
procedure. Damage caused through a failure to do this adequately will not be covered
by the warranty.
For the above reasons we recommend the use of a non chlorine dased disinfectant
such as Fernox LP Sterox as manufactured by Cookson Electronics when carrying out
disinfection of systems incorporating these appliances.
IMPORTANT - DRAIN DOWN PROCEDURE
1 Switch off both the boiler and the immersion heater
2 Open the nearest hot tap and run all hot water until cold
3 Close the incoming cold main at the stop tap
4 Hold open the pressure and temperature relief valve until water stops
discharging into the tundish
COMMISSIONING
5 Open all the taps in the property
6 Open the drain cock and immediately hold open the pressure and
temperature relief valve again until the cylinder is empty
Remove the filter from the combination inlet group clean and replace. Refill the system
and open all hot taps until there is no air in the pipe work. ENSURE CYLINDER IS
DRAINED PRIOR TO CHECKING OR REMOVING FILTER FROM THE COMBINATION
INLET GROUP.
Page 20
Allow the cylinder to heat to normal working
temperature with whatever heat source is to
be used, and check again for leaks. The Pressure
Relief Valve should not operate during the
heating cycle.
The boiler/heating systems should be filled
and commissioned in accordance with good
practice following the guidance in BS 5449/the
boiler manufacturers instructions.
NOTE: This appliance is covered by BENCHMARK
and the log book must be completed after
commissioning and after every maintenance/
service visit.
USER INSTRUCTIONS
User Instructions
Your Viessmann Vitocell 200 Cylinder is automatic in normal use, but requires routine
maintenance which is normally carried out at least annually along with the boiler
service. The maintenance must be carried out by a suitably competent tradesperson
who is qualified to work on unvented cylinders. The checks/work needed are listed
in the maintenance part of these Instructions.
The control thermostat for hot water temperature of the direct units is factory set at
60˚C and it is not user adjustable. The indirect units are fitted with an adjustable store
thermostat. However, this should be set between 60˚C - 65˚C to ensure hot water is
sanitised to eliminate the risk of legionella.
When initially opening the taps, a small surge in flow may be experienced, which
disappears as the pressure in the system stabilises. This is quite normal with these
types of systems and does not indicate a fault.
In some areas the water will initially appear cloudy, but will quickly clear when left
to stand. This is nothing to be concerned about and is due to aeration of the water.
WARNING - If water is seen flowing through the tundish, this indicates a fault condition
which needs action.
If the discharge is hot and continuous, turn the boiler and/or the immersion heaters
off, but do not turn off the cold water to the appliance until the discharge is cold. Note:
The discharge may stop by itself as the discharge cools.
If the discharge is cold and intermittent, no immediate action is needed but this
indicates a problem with the expansion vessel.
However, in both cases you must call the Registered Installer / a suitably qualified,
competent tradesperson, advise them that you have an unvented cylinder and
request a maintenance visit.
USER INSTRUCTIONS
DO NOT, at any time, tamper in any way with the safety valves or overheat thermostats/
wiring.
Page 21
SERVICING
Maintenance
The Registered Installer is responsible for the safe installation and operation of the
system. The installer must also make his customer aware that periodic maintenance
of the equipment is essential for safety.
Maintenance periods will vary for many reasons. Viessmann Ltd recommend a
maximum of 12 months to coincide with boiler maintenance. Experience of local
water conditions may indicate that more frequent maintenance is desirable, eg, when
water is particularly hard, scale-forming or where the water supply contains a high
proportion of solids, eg, sand. Maintenance must include the following:
1. 2. 3. 4. 5. 6. 7. 8. 9.
10.
Check and clean filter
Manually check the operation of the temperature relief valve.
Manually check the operation of the expansion relief valve.
Check discharge pipes from temperature and expansion relief valves are free
from obstruction and blockage and are not passing any water.
Check the condition and if necessary descale the heat exchangers in hard water
areas.
Check that water pressure downstream of pressure reducing valve is within the
manufacturer’s limits.
Check operation of motorised valve.
Check the pressure on the air side of the expansion vessel. This must be done
when the water in the cylinder is cold.
Check and advise the householder not to place any clothing or other combustible
materials against or on top of this appliance.
On completion of the work, fill in the Service Record part of the Benchmark Log
Book.
IMPORTANT NOTE
When draining down the appliance for any reason, the instructions
provided in the Commissioning Section MUST be followed to prevent
potential damage to the cylinder.
SERVICING AND MAINTENANCE
When carrying out the annual service on the appliance/boiler, it is recommended that
with solar appliances, a check is made of the solar system pressure/expansion vessel
charge pressure along with a visual check of the solar panels.
It is recommended that after a maximum of five years, the concentration/quality of
the solar system antifreeze solution is checked and, if necessary, replaced.
Page 22
SERVICING
Problems And Remedial Action
Scale
In hard water areas it is recommended that an in-line scale inhibitor is fitted. Reducing
the temperature of the stored water will reduce the rate at which scale forms. If the
recovery rate is badly affected, this is an indication that scaling may have occurred. In
this event, follow the procedures as recommended by a reputable Water Treatment
Company.
General
No water at the tap. Check that the mains water supply is turned ON. Check the line
strainer is not blocked. Check that the combination valve has been fitted so that water
is flowing in the correct direction.
If the water at the tap is cold, ensure that the boiler has been switched ON and is working
correctly. Check that there are no air locks in the primary system. ISOLATE THE UNIT
AT THE MAINS ELECTRIC SUPPLY AND THEN CHECK THE FOLLOWING:
i. The cylinder thermostat
ii. The thermal cut-out, which can be re-set by pushing the red button
iii. The motorised valve
iv. The boiler thermostat
v. The boiler thermostat cut-out (if fitted)
ANY ENERGY CUT-OUT MUST NEVER BE BY-PASSED UNDER ANY CIRCUMSTANCES.
If the units are not getting hot and the heat source is electrical, ensure that the
immersion heaters are isolated from the mains before re-setting the energy cut-out.
If the immersion heater(s) need replacing this should be done with the units supplied
from Viessmann Limited.
Discharge From Relief Valves
If cold water is discharging from the expansion relief valve into the tundish check the
pressure on the expansion vessel when cold and recharge if necessary.
If the fault continues and the problem cannot be stopped by operating the easing
control a few times then either the Pressure Reducing Valve or the Relief Valve may
be at fault. If the cold water pressure is too high, this would suggest that the Pressure
Reducing Valve is at fault and the Viessmann approved replacement should be fitted.
If the pressure is correct then the Relief Valve will require replacing with a Viessmann
approved component.
See Commissioning for drain down procedure.
If there is an overheat fault and very hot water is being discharged, turn off the heat
source, but not the water supply.
FAULT FINDING
When the supply is cool, check thermostats and energy cut-outs in the boiler and
immersion heaters and replace the faulty component with a unit supplied by Viessmann
and check that it works correctly before returning the system to full operation.
Page 23
SERVICING
Fault - No Hot Water
START
YES
NO
Is boiler on?
Switch on
YES
Is hot water programmer
in ‘on’ position?
NO
Set programmer
YES
Is zone valve in
correct position?
NO
Re-set, check wiring &
plumbing is correct
YES
Is control temperature
set at 55ºC - 60ºC?
NO
Re-set
YES
NO
Has high limit cut out?
YES
Is all wiring to the
controls ok?
NO
Re-wire
YES
NO
Re-set
Replace thermostat
FAULT FINDING
END
Page 24
SERVICING
Fault - Poor Water Flow At Hot Taps
START
YES
Is incoming mains supply
flow/pressure adequate?
NO
Water service check by
supply company required
YES
Is in-line strainer
(in combination valve)
clean?
NO
Clean or replace strainer
as appropriate
YES
Is pressure reducing valve
(in combination valve)
working?
NO
Service /replace PRV
as appropriate
YES
Is system free from
restrictions/blockages?
NO
Clear obstructions
YES
END
Fault - Water Discharge Into Tundish
START
YES
Is valve seal and seat
clean & undamaged?
NO
Clean or replace
as required
YES
Is heater operating at
less than 60ºC?
NO
YES
Is expansion vessel
charge pressure correct?
NO
Recommission
expansion
vessel pressure
YES
YES
Replace ERV/TPRV
Is ERV/TPRV
discharging?
Re-set temperature
NO
Replace PRV
END
FAULT FINDING
NO
Is pressure downstream
of pressure reducing valve
correct?
Page 25
SERVICING
SPARE PARTS LIST
Description
1
3kW immersion element
Quantity
Gledhill Code
No.
Spares Part No.
1
SH001
7160753
2
22mm 90° compression elbow c/w/drain
1
SF003
7160754
3
Pressure and temperature relief valve 6 bar 95°C
1
SG001
7160755
4
Inlet group set at 3 bar c/w expansion relief valve set at 4.75 bar
1
SG010
5
¾” flexible hose
1
SG003
7
12 litre expansion vessel
1
XG190
8
18 litre expansion vessel
1
XG191
9
24 litre expansion vessel
1
XG192
10
Wall mounting bracket for 12/18/24 litre expansion vessel
1
XG184
11
35 litre expansion vessel
1
XG193
12
Wall mounting bracket for 35 litre expansion vessel
1
XG058
7160757
22mm 2 port valve
1
XG083
7160764
Junction wiring box (12 way)
1
XG129
7160765
15
Control and overheat limit thermostat
1
XG168
7160766
16
15mm x 22mm tundish
1
XG173
7160767
SPARE PARTS LIST
13
14
Page 26
APPENDIX
Water Savings
Water Related Costs Can Be Reduced By Good Plumbing Practice
1
2
1
1
2 tap
half open
Unregulated
Over
20 l/m
Fitted with regulator
5, 6 or
8 l/m
2
2
TAPS & MIXERS
4 Fixing Options For Taps & Mixers
1. MK Range - Combined Regulators & Aerator
for screwing onto Taps & Mixers with internal
or external threads on their noses.Anti Vandal
models also available.
Unregulated
25 - 30 l/m
Regulated
10 - 12 l/m
SHOWERS
Vast quantities of water are needlessly run off to waste due to Taps, Mixers and Showers
discharging flow rates far in excess of the rates required for them to perform their
duties.
The contrasting flow rates shown on this leaflet clearly illustrate the savings that can
be made whilst still providing a good performance.
British made Aquaflow Regulators provide constant flow rates by automatically
compensating for supply pressure changes between 1 bar & 10 bars.
To facilitate installation into the wide range of plumbing equipment which is
encountered in the U.K, Four Fixing Options are available:-
2. MR05-T Range - Internal Regulators. Pushfit into Tap or Mixer seats. Produced in
three sizes - 12.5mm (BS1010), 12mm &
10mm, Flangeless models also available for
Taps with Low Lift washers.
3. MXF Standard Range - Screw on tail
models for Taps & Mixers. Fix onto the tails
before fitting the tap connectors. Available
in 3/8", 1/2", 3/4" and 1" BSP.
4. Compression Fitting Range - “In Line”
regulators housed in 15mm & 22mm CXC
Couplers & Isolating Valves.“ ”UK WFBS listed
by the Water Research Centre. Isolation valves
available for slotted screwdriver operation or
with coloured plastic handles. Now available
also in plastic bodied push-fit couplers &
valves.
3
3
Options For Showers
1. MXF “DW” Range - For fitting behind Fixed Shower Heads or onto Flexible Hoses for
Handshowers (preferably onto the inlet end when lightweight hoses are used).
2. Compression Fitting Range. “In Line” regulators as in Option 4 for Taps & Mixers.
4
Information by courtesy of
Aquaflow Regulators Ltd
Haywood House, 40 New Road, Stourbridge, West Midlands DY8 1PA
Telephone (01384) 442611 Fax: (01384) 442612
Page 27
APPENDIX a
1
APPendix
MANUAL HANDLING OF APPLIANCE PRODUCTS
Description
Manual handling means any transporting or supporting of a load (including lifting,
putting down, pushing, pulling, carrying or moving) by hand or bodily force.
Control Measures
Manual lifting procedure
e. Taking the lead for team lifts- As more
than one person is required for these
products ensure that one person is taking
the lead. This may be you so ensure that
each person that is helping is made aware
of the weight and of the items listed within
this assessment. Make sure you and any
others helping know the route you intend
to take that it is clear of any obstructions.
Never jerk the load as this will add a little
extra force and can cause severe strain
to the arms, back and shoulders. If there
are steps involved decide on where you
will stop and take a rest period. Move
smoothly and in unison taking care to
look and listen to others helping with the
lift. Where possible use a sack truck to
move the product over long flat distances,
only lift the products when necessary. If in
doubt stop and get more help.
The lift, key factors in safe lifting are:
Individual capability
Scope
This assessment will cover the largest product supplied by Viessmann Limited.
For specific weights and dimensions please refer to technical data section.
Main Hazards
Vision may not be clear due to the size of the products.
Adopting an incorrect method of lifting may cause injury, attempting to lift these
products will require help from others. (Team lifts)
a.
b.
c.
d.
e.
Balance
Position of back
Positioning of the arms and body
The hold
Taking the lead for team lifts
a. Balance - Since balance depends essentially upon the position of the feet,
they should be apart about hip breadth with one foot advanced giving full
balance sideways and forward without tension. In taking up this position,
lifting is done by bending at the knees instead of the hips and the muscles
that are brought into use are those of the thigh and not the back.
b. Individual capability plays an important part
in handling these products. Persons above
average build and strength will find it easier
and should be in good health. Persons below
average build and strength may require more
rest periods during the handling process.
Position of back - Straight - not necessary vertical. The spine must be
kept rigid, this coupled with a bent knee position, allows the centre line of
gravity of the body to be over the weight so reducing strain.
c. Positioning of arms and body - The further arms are away from the side,
the greater the strain on the shoulders, chest and back. Keep elbows close
to the body arms should be straight.
d. The hold - Before lifting ensure you have a good hold.
Pregnant women should not carry out this
operation.
Persons who are not in good health should
seek medical advice prior to commencing any
lifting or manual handling operation.
Residual risk
Following the guidelines given above will
reduce any risk to injury.
All persons carrying out this operation must
be fully trained and copies of the specific risk
assessment made available for inspection and
use in their training process.
APPENDIX B
Further guidance on Manual Handling can be
obtained from the Health and Safety Executive.
Manual Handling Operations Regulations
1992.
Page 28
SERVICE INTERVAL RECORD
SERVICE INTERVAL RECORD
It is recommended that your heating system is serviced regularly
and that you complete the appropriate Service Interval Record Below.
Service Provider. Before completing the appropriate Service Interval Record below, please ensure you have carried out the service
as described in the boiler manufacturer’s instructions. Always use the manufacturer’s specified spare part when replacing all controls
SERVICE 1 DATE
SERVICE 2 DATE
ENGINEER NAME
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
COMMENTS
ENGINEER NAME
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
COMMENTS
SIGNATURE
SIGNATURE
SERVICE 3 DATE
SERVICE 4 DATE
ENGINEER NAME
ENGINEER NAME
COMPANY NAME
TEL No.
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
COMMENTS
CORGI ID CARD SERIAL No.
COMMENTS
SIGNATURE
SIGNATURE
SERVICE 5 DATE
SERVICE 6 DATE
ENGINEER NAME
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
COMMENTS
ENGINEER NAME
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
SIGNATURE
SIGNATURE
SERVICE 7 DATE
SERVICE 8 DATE
ENGINEER NAME
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
COMMENTS
ENGINEER NAME
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
SIGNATURE
SIGNATURE
SERVICE 9 DATE
SERVICE 10 DATE
ENGINEER NAME
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
COMMENTS
ENGINEER NAME
COMPANY NAME
TEL No.
CORGI ID CARD SERIAL No.
COMMENTS
SIGNATURE
SIGNATURE
COMMENTS
COMMENTS
Page 29
NOTES
Page 30
NOTES
Page 31
Viessmann Werke GmbH&Co KG
D-35107 Allendorf
Telephone: +49 6452 70-0
Fax: +49 6452 70-2780
www.viessmann.com
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: +44 1952 675000
Fax: +44 1952 675040
E-mail: [email protected]
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