Worcester PRIMARY WATER STORAGE 120 LITRES User guide

UK/IE
Installation and Servicing Instructions
PRIMARY WATER STORAGE 120 LITRES
8 716 115 670 (02/2009) EN

Table of Contents
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2
Table of Contents
1 Safety precautions & explanation of symbols 3
1.1 Safety precautions 3
1.2 Explanation of symbols 3
2 Product information 4
2.1 Use 4
2.2 Intended use 4
2.3 Scope of delivery 4
2.4 Dimensions and connections 5
2.5 Technical data 5
3 Installation 6
3.1 Regulations 6
3.2 Disposal 6
4 Transport 7
4.1 Means of transport 7
4.2 Installation location 7
5 Fitting 8
5.1 Fitting the bolts 8
5.2 Fitting the temperature sensor 8
5.3 Connection of the storage tank to the heat pump
and heating system 9
6 Initial operation 10
6.1 Customer handover 10
6.2 Start of operation 10
7 Decommissioning the system 11
7.1 Decommission the system when there is a risk of
frost 11
7.2 Environmental protection 11
8Servicing 12
8.1 Service and commissioning 12

Safety precautions and explanation of symbols
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1 Safety precautions and explanation of symbols
1.1 Safety precautions
Fitting & Retrofitting
VRisk of fire!
Exercise due care when soldering and welding as this
can lead to fire.
VThis storage tank must only be fitted or refitted by a
competent installer.
Operation
VIn order to ensure trouble-free operation, read these
instructions carefully..
VRisk of scalding!
During operation of this storage tank temperatures over
60°C can occur.
Servicing
VOnly original spare parts must be used with this appli-
ance.
1.2 Explanation of symbols
Warning symbols
Signal words indicate the seriousness of the hazard in
terms of the consequences of not following the safety
instructions.
–NOTICE indicates possible damage to property or
equipment, but where there is no risk of personal injury.
–CAUTION indicates possible personal injury.
–WARNING indicates possible severe personal injury.
–DANGER indicates possible risk of life.
Important information
Additional symbols
Safety instructions in this document are
framed and identified by a warning triangle
which is printed on a grey background.
Electrical hazards are identified by a lightning
symbol surrounded by a warning triangle.
Notes contain important information in cases
where there is no risk of personal injury or
material losses and are identified by the sym-
bol shown on the left. They are bordered by
horizontal lines above and below the text.
Symbol Meaning
Va step in an action sequence
Æa reference to a related part in the docu-
ment or to other related documents
– a list entry
– a list entry (second level)
Tab. 1

Product information
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2 Product information
2.1 Use
The storage tank is designed to act as a buffer for the
heating system and is ideally suited to heat pump
applications.
2.2 Intended use
The storage tank must only be filled with heating water
and must only be used in sealed heating systems which
are designed for use with heat pumps. Any other use is an
infringement of use for intended purpose. Any damage
that may result is excluded from liability.
Not for use as a method of potable hot water
(Domesttic Hot Water) storage.
Scope of delivery
The packaged storage tank includes:
Drain valve (factory fitted).
– Sensor pocket (for flow temperature sensor) and air
vent.
– Sensor pocket (for return temperature sensor GT1)
–bolts.
– Plastic cover cap.
Fig. 1 Primary water storage tank
1bolts (x3)
2insulation
3storage tank
4sensor pocket (for flow temperature sensor)
and air vent
5cover cap
6sensor pocket (for return temperature sensor GT1)
Warning:
VDo not use the storage tank in conjunction
with permeable pipework.
The sensor pocket is for the installation of the
heat pump temperature sensor.

Product information
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2.3 Dimensions and connections
Fig. 2 Dimensions and connections (dimensions in mm)
V1flow (heat pump)
V2 flow (heating)
R1return (heat pump)
R2 return (heating)
M1measuring point for flow temperature sensor
M2measuring point for return temperature sensor (GT1) -
from heat pump
EL drain valve
Eair vent
2.4 Technical data
Storage tank P120 W
storage volume (heating water) l120
flow V1, V2DN R ¾
return R1, R2DN R ¾
measuring pointM1, M2Ømm10
air vent Rp 3/8
maximum heating water temperature °C 90
maximum heating water working pressure bar 3
Additional data:
weight (empty) kg 60
weight (full) kg 180
Tab. 2

Installation
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3 Installation
3.1 Regulations
This appliance must be installed and serviced only by a
competent person in accordance with the current:
IEE Regulations, Building Regulations,
Building Standards (Scotland) (Consolidation),
Building Regulations (Northern Ireland),
local water by-laws,
Health and Safety Document 63S (the Electricity at
Work Regulations 1989,
IS813 (Eire)
and other local requirements
Where no specific instruction is given, reference
should be made to the relevant codes of Practice.
BS7074:1 : Code of practice for domestic and hot
water supply
EN:12828 : Central heating for domestic premises
3.2 Disposal
VDispose of the storage tank packaging in an environ-
mentally sound method.
VDispose of the storage tank in an environmentally
sound method at an appropriate disposal facility.

Transport
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4 Transport
4.1 Means of transport
VProtect the storage tank against tilting and transport to
its installation location standing upright and in its
packaging.
VDo not remove the storage tank packaging before it is
in the installation location. Fig. 3 Transport of the hot water storage tank by
suitable means
4.2 Installation location
VObserve minimum clearances.
VPlace storage tank on an even and load-bearing
ground.
VIn damp rooms: put storage tank on a platform.
VRecommend minimum clearance of 25mm around the
tank.
VEnsure you have adequate access to the drain valve.
Danger: Risk of injury from carrying heavy
weights!
VDo not try to lift or carry the storage tank
alone.
Caution: Damage from inappropriate pro-
tection during transport!
VFor transport, use appropriate means, e. g.
a sack truck or pump truck with a tension
belt.
Caution: Protect from freezing!
VPlace storage tank in a frost-proof room.
VEnsure the tank is frost protected.
Caution: Damage from corrosion!
VUse the storage tank in sealed systems
only.

Fitting
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5 Fitting
5.1 Fitting the bolts
VPlace the polystyrene packaging[1] on the floor.
VLay the storage tank [2] on the polystyrene with care.
VFit the M10 x 30mm bolts [3] accordingly into the
bottom of the storage tank.
VAdjust the bolts to level the tank.
Fig. 4 Fitting the foot screws
1polystyrene packaging, top
2storage tank
3bolts (x3)
5.2 Fitting the temperature sensor
VUsing the guide wire on the guide plate[ slide the
clamp spring and the temperature sensor together into
the sensor pocket.
Sensor positions:
–M1 = Measuring point for flow temperature sensor top
–M2 = Measuring point for return temperature sensor
(GT1) bottom
(ÆFig. 2, page 5)
VLay the sensor lead through the top opening to the
control unit with care.
VCarefully route the sensor cable to the heat pump
Fig. 5 Primary water storage tank
1bolts (x3)
2insulation
3storage tank
4sensor pocket (for flow temperature sensor)
and air vent
5cover cap
6sensor pocket (for return temperature sensor GT1) - M2
6 720 614 912-01.1RS
2
1
3
ca. 20
Ensure that the sensor area has contact with
the sensor pocket area for its full length.
For information on this refer to the
documentation of your heat pump or of the
control unit.

Fitting
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5.3 Connection of the storage tank to
the heat pump and heating system
VWhen sizing the heating system expansion vessel, take
the storage tank volume into consideration.
Fig. 6 functional schematic: connection of the storage
tank to the heat pump
1heat pump
2heating system
3additional heating system (in case of expansion)
4pump
(An additional external circulation pump, for each heating
system, may be needed. This will be fitted to the flow
outlet from the tank to the heating system as shown
above)
53-way-valve
6storage tank
VEnsure pipework is adequately supported
VEnsure that the correct connections are made to the
storage tank.
VWhen filling the storage tank, manually release the air
via the air vent
(ÆFig. 2, [E], page 5) on the top side of the storage
tank.
VCheck all connections for tightness.
Danger: Risk of fire from soldering and
welding!
VTake suitable safety measures when
soldering and welding.
Caution: Risk of damage to non heat-resist-
ant installation materials (e. g. plastic piping)!
VUse installation material which is heat re-
sistant to ≥80 °C.

Initial operation
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6 Initial operation
6.1 Customer handover
The installer explains to the customer (user) the mode of
operation and the handling of the heating appliance and
the storage tank.
VMake the user aware of the mode of operation.
VHand all enclosed documents over to the user.
6.2 Start of operation
Start of operation has to be done by the installer of the
heating system or by a technical expert.
VStart the operation of the heat pump in accordance to
the manuafacturers information, installation or instruc-
tion manuals.

Decommissioning the system
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7 Decommissioning the system
7.1 Decommission the system when
there is a risk of frost
VDecommission the heating system in accordance with
the heat pump (or other accessories) instruction
manual.
7.2 Environmental protection
Environmental protection is a key company commiment fo
the Bosch Group.
Quality of performance, efficiency and environmental pro-
tection are our long term objectives. Legal and corporate
guidelines are strictly adhered to.
To protect the environment we utilize the most efficient
processess, technology and materials
Packaging
We are dedicated in adhering to country specific disposal
standards as they relate to packaging to ensure optimum
recycling. All packaging materials are environmentally
friendly and can be recycled..
Obsolete equipment
Obsolete products contain raw materials that can be
recycled.
The components are easily separarted and are clearly
marked. In this manner the individual components are eas-
ily sorted and added into the recycling and disposal sys-
tems.

Servicing
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8 Servicing
8.1 Service and commissioning
Apart from occasional visual inspection, storage tanks do
not require any particular servicing or cleaning.
VUse original spare parts only!
Emptying
VIf required, empty the storage tank via the drain valve at
the bottom of the tank, see fig. 2, page 5.
Warning: Risk of scalding!
Hot water can lead to major scalding
VAllow the storage tank time to cool down
after decommissioning.

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Notes

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Notes

8 716 115 670 (02/2009) 15

Dedicated to heating comfort
Worcester, Bosch Group
Cotswold Way, Warndon, Worcester WR4 9SW
Tel. [phone] Fax. [phone]
Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd.
www.worcester-bosch.co.uk
8 716 115 670a
CONTACT INFORMATION
WORCESTER, BOSCH GROUP:
TECHNICAL: 08705 266241
CONTACT CENTRE: 08457 256206
RENEWABLES TEAM 01905 752780
SPARES: 01905 752571
LITERATURE: 01905 752556
TRAINING: 01905 752526
SALES: 01905 752640
WEBSITE: www.worcester-bosch.co.uk