Technical and Specification Information
Greenspring CWi47
Water Heater
Greenspring gas-fired
condensing wall mounted
continuous flow water heater
Includes
ErP
ratings
Worcester and you. Making a diff
2
As part of the Bosch Group, Worcester
supported by an experienced technical
products are designed and manufactured to
services team which is able to provide
provide customers with the highest levels of
comprehensive support and advice
quality and reliability which are synonymous
from designing system layouts through
with the Bosch name throughout the world.
to installation.
As part of Europe’s largest supplier of
Worcester is dedicated to providing energy
heating products, Worcester, Bosch Group
efficient gas- and oil-fired condensing
has the UK-based resources and support
boilers, as well as an extensive range of
capability to offer you the value-added
renewable technologies. All of our products
solutions you deserve. Worcester employs
have been developed and introduced with
a nationwide network of Service Engineers
the aim of helping the UK to achieve the
and technically trained Field Sales Managers
Government’s efficiency targets.
The reception and main entrance
at our Worcester headquarters
ference.
“At Worcester we recognise the vital role you
Contents
play in the specification and installation of
The Greenspring condensing
energy efficient appliances in homes across
continuous flow water heater
4-5
the UK. We will continue to invest in our
The features of the Greenspring
condensing water heater
6-7
System layouts
8-9
ErP easy as ABC
10 - 11
Inside story
12
Carl Arntzen,
Technical data
13
Managing Director,
Guidance on installing the Greenspring
Bosch Thermotechnology Ltd.
condensing water heater
14 - 17
Horizontal and vertical flue terminal positioning
18 - 19
products, people, facilities and added value
services to ensure you have all you require
in order to deliver only the best solutions to
your customers’ requirements.”
Page
Greenspring water heater horizontal fluing options 20 - 21
Greenspring water heater vertical fluing options
22 - 23
Water heater control panel
24
Installation requirements
25 - 26
Greenspring water heater accessories
27
Training
28 - 30
After-sales
31
3
The Greenspring condensing
continuous flow water heater
Global responsibility for nature and the environment
Worcester, Bosch Group, whilst continuing to satisfy the
daily demands for heating and hot water comfort, has taken
As part of the Bosch group, Worcester is committed to
a lead in developing solutions which reduce the impact on
environmental protection. With product development
the environment by reducing CO2 emissions – not only for
being prioritised in the interests of people’s well being, the
today but well into the future.
economical use of resources and environmental sustainability.
With this in mind Worcester is proud to offer a high
In just a few short years, Britain’s domestic heating and
efficiency, high output gas-fired condensing continuous
hot water industry has changed dramatically.
flow water heater for use with renewable energy sources or
traditional fuels.
With approximately 25% of the UK’s carbon dioxide
emissions being produced by home energy consumption,
With an output of up to 50kW, the Greenspring water
75% of which is for the provision of heating and hot water,
heater is ideal for use in high end residential, and
such change is not only inevitable but crucial.
both small and large commercial applications. It offers
high energy-efficient condensing operation and up to
Words and expressions such as “renewable energy”,
12 appliances can be cascaded in parallel offering a
“sustainable technology” and “carbon footprint” have
combined flow rate of up to 250 lts/min.
become part of everyday conversation and have been
fuelled by extreme weather and stark television images.
The Greenspring water heater can also be connected to
a secondary circulation with a consequential reduction in
water wastage.
4
The Greenspring
water heater at a glance
Greenspring
CWi47 water heater
Part No.
Output kW
NG
7 703 311 082
LPG
7 703 411 078
Min
6kW
Max
50kW
Flow rate at 35ºC ∆ T
20.6l/min
Flow rate at 25ºC ∆ T
28.8l/min
Temperature control
9
9
9
Natural gas
LPG
ErP Water heating energy
efficiency class
ErP Water heating energy
efficiency (declared load profile)
A
86% (XXL)
The Greenspring water heater
features and benefits
Features
Benefits
Instantaneous and
continuous hot water
On demand and
sustained delivery
Condensing operation
High efficiency
Natural gas and
LPG models
Fuel flexibility
Remote temperature
control
Control flexibility
Accessory to raise
maximum water
temperature
Ideal for thermal
disinfection
Direct integration
with solar heating
and heat pumps
Complete heating and
hot water solutions from
one source
Accessory to control
cascade up to 12 units
Maximises output up to
247l/min at 35º rise
5
The features of the Greenspring
condensing water heater
Domestic
A Greenspring water heater is ideal for domestic
applications where:
• There is increased demand for DHW – e.g. multiple bath,
shower rooms etc.
• Space heating is being provided by another technology
e.g. heat pumps
• Pre-heated water supply is to be used –
e.g. by solar thermal.
Typical examples include larger homes and small hotels.
Light commercial/non-domestic
Ideal for light commercial or non-domestic applications with:
• High demands for DHW – e.g. multiple sinks, showers etc.
• No or little requirement for space heating – e.g. due to air
conditioning, district heating etc.
• Where pre-heating of DHW is available.
Typical applications include restaurant kitchens, gyms,
nurseries, hairdressers, hotels, nursing homes and
smaller schools.
For more
information on ErP,
see pages 10-11.
Commercial
Suitable for large commercial applications where there is:
• Consistent high demands for DHW – e.g. laundries,
Energy saving condensing design
The use of a condensing appliance contributes to achieving
higher efficiency by incorporating a secondary heat
hospitals, etc.
• Very high cyclic demands for DHW – e.g. hotels,
schools etc.
exchanger. Heat within the flue gases is used to preheat
the inlet water, and so recaptures energy that would
Greenspring’s ability to use water pre-heated by
otherwise be lost.
renewable heat sources supports planning and
investment requirements.
Applications
The Greenspring water heater has been optimised for use in
Such applications can take full advantage of the cascade
domestic and commercial applications where there are high
controls that are part of the Greenspring offering. These
demands for domestic hot water (DHW).
controls provide the ability to deliver up to 250 litres of
hot water a minute, on demand, with no need for costly
At 50kW heating output, the Greenspring water heater
hot water storage capacity.
offers the following performance:
• Up to 20.6 litres per minute with 35ºC rise
• Up to 28.8 litres per minute with 25ºC rise.
Certain commercial applications may also take advantage of
the ability to provide a hot water temperature of up to 84°C
for sterilisation processes and secondary circulation.
The Greenspring water heater can be used with natural
gas or liquid propane gas (LPG) and can be installed in
single units or multiple cascades of up to 12 units.
Extended flue lengths of up to 8m are also possible,
helping to provide even greater design flexibility.
6
Key benefits to the end user
Ease of installation and maintenance
High volumes of hot water
• Error codes clearly displayed on LCD screen
• Front mounted controls
• Wall mounted
• Easy access to components
• Compact design.
•
Multiple showers, sinks and baths at the same time.
Cost savings
• Condensing technology for greater energy efficiency
• No requirement for storage tanks –
reducing space and heat losses
• Ability to use existing Worcester Condensfit II™
wall-hung boiler flues.
Cascading
Linking up to 12 water heaters together in parallel allows a
maximum water flow of up to 250 litres per minute with a
35ºC rise.
Low environmental impact
• Energy-efficient condensing design
• Pre-mix combustion technology ensures low NOx
emissions (<40ppm, Class 5)
• Suitable for use with pre-heated water from renewables
• Compatible with hot water secondary circulation
to reduce water wastage.
Worcester’s intelligent cascading software will automatically
rotate the lead unit after each 100 hours of functioning,
distributing the workload equally across the water heaters
in the cascade, increasing the longevity of the appliances.
Fluing
The Greenspring water heater uses the existing
Key benefits for installers
Condensfit II™ (80mm/125mm) concentric horizontal
•
• Room sealed (RSF) appliance
• Compact, low-space design
• Natural gas and LPG versions
• Horizontal or vertical flue options
• Frost protection.
or vertical flue system.
Flexible design options
7
System layouts
Secondary circulation
Accessories
The Greenspring has a durable heat exchanger that
Higher set point
allows it to withstand the frequent low-fire rates of a
With an optional kit, it is possible to set higher maximum
secondary circulation system.
water temperatures than the standard 60ºC. The kit
comprises of a ‘jumper’ placed on the PCB which raises
To reduce water wastage, a secondary circulation system
the maximum temperature to 84ºC.
will circulate hot water through the pipework of the
property to ensure hot water is immediately available
This kit allows the water heater to meet the requirements
when a tap is opened. This can be constant or tuned to
of many demanding commercial applications such as
suit user patterns.
thermal disinfection requirements for food and
healthcare applications.
A thermostat placed in the pipework at a distant point to
the heater activates a pump when water temperature drops
Remote control
below a set point, thus activating the appliance.
A wireless remote control can be used to adjust the
temperature up or down, and to read error codes. The
The pump will need to be purchased separately, however
radio frequency of the remote has a range of 30 metres.
no additional accessory is necessary. A safety valve
A maximum of 6 remote controllers can be programmed to
is mandatory and expansion vessel recommended for
control a single appliance.
recirculating systems.
Use with renewables
A Greenspring water heater is designed to work with
pre-heated water from, for example, a solar thermal
system or heat pump(s). If the inlet water is within 5ºC
of the set-point on the LCD, the appliance will not fire up,
simply letting the pre-heated hot water flow through to the
outlets. In this case the solar symbol appears on the LCD
(see below).
The burner will only fire when it can raise the water
temperature by over 5ºC at minimum output. The maximum
inlet temperature to the water heater is 60ºC.
Cascade kit
The cascade kit is a wiring accessory that allows the control
of up to 12 water heaters to be connected together for an
‘intelligent’ (rotating lead) cascade.
Solar mode indicator
8
Greenspring water heater with appliance for Domestic Hot Water (DHW)
Greenspring water heater cascade system with secondary circulation
Greenspring water heater with a separate pre-heated water supply e.g. Greenskies solar thermal
Worcester
Pump
Station
Please note: Additional equipment may be required. This is shown for clarity. Please note that from
26th September, this configuration will require an ErP system package label – please turn to pages 10-11
for more information.
9
What is ErP?
The ErP Directive, which is a new regulation
set by the European Union, is designed to
drive improvements in the efficiency and
performance of heating and hot water
products. Its purpose is to ensure that end
users are aware of the level of energy
efficiency inherent within their appliances.
As such, the Directive will help improve the
overall efficiency of the housing stock, while
helping homeowners to reduce their energy
bills. The ErP regulations cover boilers,
combination boilers, water heaters and
other heating appliances up to 400kW.
What is Energy Labelling?
The Energy Labelling involves a label which
we are familiar with today on washing
machines and televisions at the point of
XXL
sale. The Energy Labelling regulations
introduce Europe-wide energy labelling
requirements for boilers, combination
boilers, water heaters and other heating
products up to 70kW and hot water
cylinders under 500 litres.
How will the labelling scheme work?
The new Energy Labelling Directive will
Model
name
Product A
CH
efficiency
band
A
A
B
C
D
E
F
G
Sound
power
level
kWh/annum GJ/annum
dB
introduce new efficiency classes with from
A to G alongside the existing efficiency
2015
ratings for products in the domestic and
light commercial sectors.
Most condensing water heaters will fall
within the A band, which requires them to
achieve more than 85% hot water efficiency
(at XXL load profile), while renewable
technologies such as heat pumps will likely
be in the A+ or A++ bands (depending on
flow temperature).
10
812/2013
Annual power
and fuel
consumption
What about systems that contain
What if I cascade the Greenspring Continuous
different products?
Flow Water Heater?
In these circumstances, there is a responsibility for
There is no requirement to create a package label
providing a package label when combining a heating
when cascading multiple water heaters.
appliance with a temperature control and/or solar
device, cylinder or a supplementary heating
However, a package label is required when
appliance (for example, a two boiler cascade).
combining a continuous flow water heater with
solar thermal.
The person who puts that package together will
need to produce a package document known as
a fiche (data table) and label that provides the
combined energy efficiency rating rather than
ratings of each individual component.
For example, this could be the merchant’s
responsibility if they supply a complete package
under one part number or the installer if the
items are bought individually under separate
part numbers.
In this circumstance, Worcester will provide an
online tool that makes calculating the overall
package efficiency of a Worcester system effortless.
ErP easy as ABC with Worcester
The Energy Related Products (ErP) Directive comes
into force on the 26th September 2015. Worcester
will have a number of measures in place to support
you including:
An online tool which creates product
and heating system labels
ErP will be covered in all Worcester
training courses
ErP experts – our technical and
customer support teams can answer
all your questions.
ErP Technical Support: 0330 123 3641
Email: ErP-advice@uk.bosch.com
11
Inside story
Flue gas overheat sensor
Flue gas temperature sensor
Condensing
heat exchanger
Heat exchanger
overheat thermostat
Heat exchanger
Sight glass
Ionization
probe sensor
Ignition electrodes
Flue recirculation
temperature sensor
Primary fan
Secondary fan
Pressure test point
gas valve
Gas valve
Hot water
temperature sensor
(behind control unit)
Water valve with flow sensor
and cold water temperature
sensor (behind control unit)
Control unit
Controller with LCD display
Main
Program button Reset button ON/OFF button
12
LCD display
Temperature increase/decrease
programming button
Technical data
Greenspring CWi47 water heater
Height
775mm
Width
452mm
Depth
286mm
Weight – lift
Hot / cold water connections
Condensate connection
34kg
¾" compression
32mm plastic pipe
Gas connection
¾" BSPT
Nominal output
50.3kW
Maximum output
50.3kW
Minimum output
6kW
Natural gas pressure
20mbar
LPG pressure
37mbar
Natural gas consumption
5.09m3/h
LPG consumption
3.8kg/hr
Maximum water pressure
12bar
Minimum operating pressure
0.5bar
Minimum water pressure for maximum flow
2.5bar
DHW flow rate @ 35ºC∆T
20.6l/min
DHW flow rate @ 25ºC∆T
28.8l/min
Activation rate
1.9l/min
Internal siting
Yes
Frost protection
Yes
Maximum vertical flue
8,000mm
Maximum horizontal flue
8,000mm
NOx classification – natural gas
40ppm
NOx class
5
Efficiency
104%
ErP Water heating energy efficiency class
ErP Water heating energy efficiency (declared load profile)
Ingress protection (IP)
A
86% (XXL)
X4D
13
Guidance on installing the
Greenspring condensing water heater
Siting of appliance
Compartment installation –
The appliances are only suitable for installing internally
for single appliances in domestic properties
within a property at a suitable location. That location must
The appliance may be installed in any room, although
be a fixed, rigid surface at of least the same size as the
particular attention is drawn to the requirements of the
appliance and capable of supporting its weight.
IEE regulations applicable and in Scotland the electrical
provisions with respect to installation in a room containing
No wall surface protection is required against heat transfer
a bath or shower.
from the water heater. However, if the appliance is to be
fitted in a timber frame building the guidelines laid down
in BS 5440:Part 1 and the IGE “Gas Installations in Timber
Frame Buildings” should be adhered to.
1. The room in which the appliance is installed does not
require a purpose provided air vent.
2. If the appliance is installed in a cupboard or
compartment with dimensions that allow the following
The appliance must not be installed in locations where the
minimum clearances, then no ventilation is required
ambient temperature is expected to drop below 0 degrees.
(see below):
The appliances may be installed into an airing cupboard
if required. However a non-combustible perforated material
(max. hole sizes of 13mm) must be used to separate the
Ventilation free compartment installation –
minimum clearances
boiler from the airing space. See section “Compartment
Installation” on right.
20mm*
Mounting on a combustible surface
All Greenspring wall mounted water heaters can be sited
on a combustible surface. EN482, Section 6.4.1.3 states no
means for protection of combustible surfaces are necessary
if the temperature of the wall does not exceed the room
temperature by more than 60ºC. Testing of Greenspring
gas-fired wall mounted water heaters has shown that this
temperature is not exceeded.
Installation and service clearances
The minimum clearances shown opposite (fig 1) should
be allowed for installation and servicing. Compartment
ventilation would be required at these clearances.
14
10mm
10mm
Fig 1 Minimum of 20mm required from/for front clearance
*To a removable surface
Important: bathroom locations and clearances
Casing dimensions
as illustrated in the diagram below
452mm
• The water heater must not be installed in zones 0, 1 or 2
• Any switch or appliance control using mains electricity
286mm
C
must not be within reach of a person using the bath
or shower
• Electrical switches, fused spurs and socket outlets must
not be situated in the bathroom
• A water heater fitted with a non-mechanical timer or with
no timer in the water heater can be installed in Zone 2 or
775mm
outside the shaded area
A
• A water heater with a mechanical timer or RF mechanical
timer with a room thermostat must only installed outside
the shaded area
• Additional Residual Current Device (RCD) protection may
be required.
B
Refer to the latest IEE wiring regulations.
Pipework connections
600mm
600mm
750mm
B
A
1
1
2
2
2,250mm
2,250mm
C
D
0
Pipework connections
600mm
750mm
2,250mm
2
1
1
2
A
Hot water outlet
¾" dia.
B
Cold water inlet
¾" dia.
C
Gas connection
¾" dia.
D
Condensate outlet
32mm dia.
2,250mm
0
600mm radius
Conventional flued boilers must not be fitted in
a bathroom.
15
Condensate pipework – internal connections
Important points to consider when siting a condensate
drainage pipe:
Condensate
discharge
from water
heater
• Where a new or replacement boiler is being installed,
access to an internal “gravity discharge” point should
be one of the factors considered in determining
Soil and
vent stack
boiler location
• The condensate pipe must be a minimum of 32mm dia.
plastic pipe
• The condensate pipework must fall at least 52mm per
metre towards the outlet and should take the shortest
Condensate trap
practicable route
Min. 450mm
and up to
3 storeys
32mm dia.
• Ensure there are no blockages in the pipe run.
In order to minimise risk of freezing during prolonged cold
spells, the following methods of installing a condensate
Fig. 1 Disposal to soil vent stack
drainage pipe should be adopted, in order of priority.
Wherever possible, the condensate drainage pipe should
Condensate
discharge
from water
heater
be routed and terminated so that the condensate drains
away from the boiler under gravity to a suitable internal
foul water discharge point such as an internal soil and vent
Visible air break at plug hole
stack. A suitable permanent connection to the foul waste
pipe should be used. (see fig. 1)
Sink or basin with
integrated overflow
100mm
Alternatively if the first option is not possible an internal
kitchen or bathroom waste pipe, washing machine waste
pipe etc. can be used. (see fig. 2)
32mm dia.
75mm min.
Condensate pump
75mm sink waste trap
Where “gravity discharge” to an internal termination is not
physically possible, or where very long internal runs would
Fig. 2 Disposal to a waste pipe
be required to reach a suitable discharge point, condensate
should be removed using a proprietary condensate pump,
of a specification recommended by the boiler or condensate
pump manufacturer.
Condensate
discharge
from water
heater
The pump outlet pipe should discharge to a suitable internal
Visible air break
at plug hole
Sink or
basin with
integrated
overflow
foul water discharge point such as an internal soil and vent
stack, internal kitchen or bathroom waste pipe, washing
75mm min.
machine waste pipe etc. A suitable permanent connection
to the foul waste pipe should be used. (see fig. 3)
Condensate
trap
75mm sink waste trap
Condensate
pump
32mm dia.
Fig. 3 Condensate pump disposal
16
Condensate pipework – external connections
Freezing conditions
Condensate soak away (see fig. 6)
• Pipework length should be kept to a minimum and the
• The condensate drainage pipe may be run above or below
the ground to the soak away
route as vertical as possible
• Where pipework is subjected to extreme cold or wind
chill, a weather proof insulation should be used.
• The examples shown run above ground
• The soak away must use a 100mm dia. plastic tube with
two rows of three 12mm holes on 25mm centres and
Condensate waste
50mm from the bottom of the tube. The holes must face
• Care should be taken when siting a soak away to avoid
away from the house
• The tube must be surrounded by at least 100mm of
obstructing existing services.
limestone chippings to a depth of 400mm
If no other discharge method is possible then the use of
an externally run condensate drainage pipe terminating at
• Minimum hole size for the condensate soak away must be
400mm deep by 300mm dia.
a suitable foul water discharge point (fig. 4), or purposedesigned soak away (fig. 5), may be considered. Please see
In situations where there are likely to be extremes of
installation and servicing instructions for more details.
temperature or exposure, the use of a proprietary trace
heating system for external pipework (that incorporates
an external frost thermostat) should be considered. If
Condensate
discharge
from water
heater
such a system is used, the requirement to use 32mm pipe
does not apply, however all other guidance above, and the
Insulate
and
increase
pipe size
External
rain water
pipe into
foul water
closely followed.
Unheated internal areas
External
air break
Pipework
transition
instructions for the trace heating system, should be
Internal pipe runs in unheated areas such as lofts,
basements and garages should be treated as external runs.
Air gap
Condensate
trap
43mm 90º
male/female bend
100mm dia. 100mm dia.
min. plastic
pipe
PVCu strap
on fitting
Condensate
discharge
from water
heater
Drainage
holes
12mm dia.
300mm
Fig. 4 Disposal into a rainwater down pipe
500mm min.
Pipework
transition
Condensate
discharge
from water
heater
Insulate
and increase
pipe size
25mm
25mm
50mm
25mm
25mm min.
Condensate
trap
Insulate
and increase
pipe size
100mm
dia. min.
plastic pipe
Limestone
chippings
400mm min.
Drainage
holes
Bottom of sealed tube
Pipework
transition
Condensate
trap
Fig. 5 External disposal
Fig. 6 Soak away
25mm min.
For full technical information on pipe size, insulation
and different condensate pipework methods, please
see Installation, Commissioning and Servicing
Instruction Manual.
17
Horizontal and vertical flue terminal positioning
All measurements in millimetres
300
6
500
25
5
Velux window
10
Drainpipe
25 300
4
3
500
600
500
1,500
2
Boundary
600
Window
1
300
Note
Key to illustration
• All measurements are the minimum clearances required
• Terminals must be positioned so to avoid combustion
1. Flue clearance must be at least 300mm from the ground.
•
Terminal guards must be fitted if the flue is less than
products entering the building
2 metres from the ground or if a person could come
Support the flue at approximately one metre intervals
into contact with the flue terminal.
and at a change of direction, use suitable brackets
and fittings
Flue bracket 125mm part number:
7 716 191 174 (125mm dia.)
2. 600mm distance to a boundary, unless it will cause a
nuisance. BS 5440: Part 1 recommends that care is
taken when siting terminals in relation to boundaries.
3. 600mm minimum clearance from a skylight to a
vertical flue.
4. Vertical flue clearance, 500mm to non-combustible
building material, and 1,500mm clearance to
combustible building material.
18
Dormer
window
w
7
14
25
1,500
400
8
9
11
200
300
1,200
12
13
300
300
15
5. The dimension below eaves, gutters, pipes and drains
can be reduced to 25mm, as long as the flue terminal is
11. 200mm below eaves and 75mm below gutters, pipes
and drains.
extended to clear any overhang. Any external flue joints
12. 1,200mm between terminals facing each other.
must be sealed with a suitable silicon sealant.
13. 300mm to an internal or external corner.
6. 500mm clearance to any vertical structure on a roof,
600mm to room sealed flue or 1,500mm to an open flue.
7. 1,500mm between a vertical flue terminal and a window
or dormer window.
8. 400mm from a pitched roof or in regions with heavy
snow fall 500mm.
9. The flue cannot be lower than 1,000mm from the top of
Installations in car ports are not recommended.
14. The dimension below eaves, balconies and car ports
can be reduced to 25mm, as long as the flue terminal is
extended to clear any overhang. Any external flue joints
must be sealed with suitable silicon sealant.
15. 300mm above, below and either side of an opening
door, air vent or opening window.
a light well due to the build up of combustion products.
10. 2,000mm below a Velux window, 600mm above or to
either side of the Velux window.
19
Greenspring water heater
horizontal fluing options
Standard horizontal flue assembly
The Greenspring water heater uses the Condensfit II™
125mm diameter telescopic flue kit. The following
diagrams detail the permissible lengths.
™
Horizontal RS flue
Flue diameter
125mm
Minimum flue length
400mm
Maximum flue length
8,000mm
Components
125mm dia. standard telescopic flue kit
1 x flue turret elbow
Part No. 125mm
7 719 003 702
Maximum lengths (mm) & no. of components required
600mm (125mm dia.) of flue duct including terminal
125mm
600
1
(as measured from centre of flue outlet)
1 x weather sealing plate
Extension flue horizontal
1 x internal plate
Part No. 7 719 003 702
Accessories
Components
Part No.
Description
7 719 003 702
125mm dia. standard telescopic
flue kit
7 719 003 666
125mm dia. extension flue kit
(960mm*)
7 719 003 664 125mm dia. 90º bend
7 719 003 665 125mm dia. 45º bend
7 719 002 433
125mm dia. high level
horizontal adaptor
Components
Part No. 125mm
7 719 003 702
7 719 003 666
Maximum lengths (mm) & no. of components required
125mm
7,600
1
up to 7
7 716 191 174 125mm dia. support bracket kit
*Dimensions when fitted
Extension flue horizontal using a second 90º bend
The following criteria should be noted when planning
the installation:
• The concentric flue system must be inclined at
3º (50mm per metre) from the appliance, to allow
condensate to drain back into the water heater
• Because the appliance operates at high efficiency a
white plume of condensation will be emitted from the
terminal. Care must be taken when selecting the flue
terminal position.
Components
Part No. 125mm
7 719 003 702
7 719 003 666
7 719 003 664
Maximum lengths (mm) & no. of components required
125mm
20
7,600
1
up to 5
1
Extension flue horizontal and upwards
Components
Part No. 125mm
7 719 003 702
7 719 003 666
7 719 003 664
7 719 002 433
Maximum lengths (mm) & no. of components required
125mm
7,600
1
up to 5
1
1
Extension flue upwards and horizontal
using a second 90º bend
Components
Part No. 125mm
7 719 003 702
7 719 003 666
7 719 003 664
7 719 002 433
Maximum lengths (mm) & no. of components required
125mm
7,600
1
up to 3
2
1
Note: The maximum flue length must be reduced by the
following amounts for each bend used.
Greenspring 80/125mm flues
45º bend
1,500m
90º bend
2,000m
21
Greenspring water heater
vertical fluing options
Minimum height
The Greenspring water heater uses the Condensfit II™
125mm diameter vertical RSF flue system. The following
diagrams detail the permissible lengths.
™
Vertical RSF flue
Pitc
roo hed
f
500mm
300mm
Flue diameter
Flat roof
125mm
Minimum flue length
1,400mm
Maximum flue length
8,000mm
L=
100mm dia. 1,090mm
125mm dia. 1,365mm
125mm dia. vertical balanced flue kit
1 x flue terminal assembly
1 x weather sealing collar
1 x fire stop spacer
Components
1 x vertical adaptor
Part No. 125mm
Part No. 7 719 002 431
7 719 002 431
Minimum lengths (mm) & no. of components required
125mm
1,400
1
Accessories
Components
Part No.
Description
7 719 002 431
125mm dia. vertical balanced
flue kit
7 719 003 666
125mm dia. extension flue kit
(960mm*)
Vertical balanced flue system maximum height
Pitc
roo hed
f
500mm
300mm
Flat roof
7 719 003 664 125mm dia. 90º bend
7 719 003 665 125mm dia. 45º bend
7 716 191 090 Flashing – flat roof
7 716 191 091 Flashing – pitched roof
*Dimensions when fitted
Components
Part No. 125mm
7 719 002 431
7 719 003 666
Maximum lengths (mm) & no. of components required
125mm
22
7,400
1
up to 6
Vertical balanced flue system with two 45º bends
Components
Part No. 125mm
7 719 002 431
7 719 003 666
7 719 003 665
Maximum lengths (mm) & no. of components required
125mm
7,400
1
up to 3
2
Vertical balanced flue system with two 90º bends
Components
Part No. 125mm
7 719 002 431
7 719 003 666
7 719 003 664
Maximum lengths (mm) & no. of components required
125mm
7,400
1
1
2
Note: The maximum flue length must be reduced by the
following amounts for each bend used.
Greenspring 80/125mm flues
45º bend
1,500m
90º bend
2,000m
23
Water heater control panel
LCD display
Main ON/OFF
button
Temperature
increase/
decrease
programming
button
Reset button
Program button
LED
Functions
Power bar indicator (input)
Temperature indicator
Error indicator
Flame indicator
Solar mode indicator
Remote control indicator
24
Locked condition indicator
(only with remote control)
Installation requirements
Installation of the Greenspring water heater must be in
Liquid Petroleum Gas (LPG) supply
accordance with the relevant requirements of the Gas
The Greenspring water heater is available in natural gas and
Safety (Installation Use) Regulations (as amended), current
LPG variants. The appliance when on full output demand
IEE Wiring Regulations, local Building Regulations, Building
will require up to 3.80kg/h of gas.
Standards (Scotland) regulations and bylaws of the local
Water company and Health and Safety Document No. 635
The gas tank or bottles must be capable of supplying this
(Electricity at Work Regulations 1989). It should be in
quantity of gas at a nominal pressure of 37mbar (14.8in wg)
accordance with the relevant recommendations of the
at the appliance. The table below shows the LPG gas
following British Standards:
discharge through varying lengths of pipe and the
resistance to flow created by elbows, bends etc.
Domestic
Pipework should be sized to overcome this resistance.
BS 6798; BS 5449; BS 5546:1; BS 5440:1; BS 5440:2;
BS 6891.
Electricity supply
A 3amp fused three pin plug and unswitched shuttered
Commercial
socket outlet (both complying with BS 1362) or preferably
BS 6644; BS EN 15417; BS EN 15420; IGEIUP/2; IGEIUP/10
a double pole isolator with a contact separation of 3mm in
all poles supplying the appliance should be used.
Gas Safety (Installation and Use) Regulations. All gas
appliances must be installed by a Gas Safe registered
The appliance electrical circuits are also protected by an
person in accordance with the above regulations. Failure
internal 1.6amp fuse. The appliance must be earthed.
to install appliances correctly could lead to prosecution.
Mains cold water supply
The manufacturer’s notes must not be taken in any way as
Water Authority requirement
overriding statutory regulations.
A direct mains cold water connection is permitted by
Water Authorities. However, it is recommended that
Valves and joints
reference be made to local requirements. In the event of
It is very important that all valves and joints are able to
difficulty contact Worcester Technical Support Department.
sustain a working pressure of up to 10bar (150psi).
Cold water connection
Natural gas supply
Connection should be made as shown in the pipework
When on full demand the Greenspring water heater will
detail and the appliance installed generally in accordance
require up to 5.09m3/hr of gas.
with the layout shown on page 15.
The gas meter and supply pipes must be capable of
Wherever possible the cold supply to the appliance should
supplying this quantity of gas in addition to the demand
be the first connection off the mains supply, in order
from any other appliance being served. It is important that
to minimise hot water flow reduction when cold water
a gas supply pipe of at least 22mm diameter is used. Under
services are operated. The final 600mm of piping to the
no circumstances should the size of the gas supply pipe be
appliance should be of copper or steel only.
less than that of the appliance inlet connection. The meter
outlet governor should be capable of ensuring a dynamic
Cold water pressure
pressure of 20mbar (8in wg) at the appliance. Particular
To achieve the stipulated flow rate a working cold water
consideration should be given to the resistance to gas flow
mains pressure of 2.5bar is required.
created by elbows, bends etc. Pipework should be sized to
overcome this resistance.
25
Hot water systems
Taps and valves
Hot and cold taps and mixing valves used with the
Greenspring water heater must be suitable for operating at
a mains pressure and temperatures of 60°C (150°F).
Use in hard water areas
In areas where hard water conditions apply, consideration
may need to be given to the fitting of a device capable of
preventing scale. In such circumstances the advice of the
local water authority should be sought.
Guarantee
The Worcester Greenspring water heater is offered with a
full 2 year guarantee* on parts and labour. Ongoing service
and maintenance contracts can be arranged through the
Worcester Customer Service Department.
Please contact our guarantee registration
advisors on 0330 123 2552 or visit
www.worcester-bosch.co.uk/guarantee
26
*Terms and conditions apply
Greenspring water heater accessories
Accessories
Higher set point kit
Intelligent cascade kit
Wireless remote control
(master)
Wireless remote control
(additional)
Worcester Part No.
7 736 500 605
Worcester Part No.
7 736 500 272
Worcester Part No.
7 736 500 569
Worcester Part No.
7 736 500 699
Condensfit II™ 80/125mm horizontal & vertical flue accessories
Standard telescopic
horizontal flue kit
(125mm dia.)
Vertical BF kit
(125mm dia.)
1,000mm extension
(125mm dia.)
45º bend
(125mm dia.)
Worcester Part No.
7 719 003 702
Worcester Part No.
7 719 002 431
Worcester Part No.
7 719 003 666
Worcester Part No.
7 719 003 665
90º bend
(125mm dia.)
High level horizontal
flue adaptor (125mm dia.)
Support bracket kit
(125mm dia.)
Flat roof flashing kit
(125mm dia.)
Worcester Part No.
7 719 003 664
Worcester Part No.
7 719 002 433
Worcester Part No.
7 716 191 174
Worcester Part No.
7 716 191 090
Pitched roof flashing kit
(125mm dia.)
Worcester Part No.
7 716 191 091
27
Total training experience
from Land’s End to John O’Groats
Worcester has always been committed to setting the
College-linked Learning
industry standard for expert professional training and
As well as offering training at our own centres, Worcester
this is reflected in the scope and content of the courses,
has established close partnerships with many colleges
venues and options available.
around the UK, equipping them with our latest products.
We offer training on our entire range of domestic and
Worcester has worked closely with leading colleges and
commercial heating technologies as well as industry-led
independent training centres for more than 20 years – a
courses. All tuition is handled by expert heating specialists,
successful enterprise which in 2007 was enhanced further
combining classroom theory with, practical hands-on
with the launch of the College Links Learning Scheme.
experience. Keep up-to-date with legislation and experience
hands-on-training with our new technologies.
Mobile training
We can also bring training to you. We have mobile vehicles
To increase your skills, expertise and value in the
fully equipped with operational Greenstar gas-fired boilers,
market place, trust Worcester’s unique and proven
dry strip-down models and even a Greensource air to air
total training concept.
heat pump. Our 7.5 tonne mobile oil vehicle is also available
for hands-on oil product training and OFTEC assessments.
Training centres throughout the UK
Worcester
Call now for more information 0330 123 0166.
Worcester’s award-winning, state-of-the-art Training
Academy is an innovative and spacious high tech training
arena at our headquarters in Worcester. Facilities include
open-plan domestic training areas with life-size single-
Training centres
T
storey brick buildings. Here installers can get to grips with
College links
training centres
Greenskies solar thermal systems working with Greenstar
gas appliances, clearly demonstrating the importance of
system design and operation.
Elgin
Wakefield
Opened in Summer 2013, the Wakefield Training and
Dundee
Assessment Academy boasts a large gas laboratory which
Fife
features our entire range of Greenstar gas-fired appliances,
Johnstone
a flushing area, wet and dry boilers and a light commercial
Borders
Ayr
area with a cascade of Worcester GB162 boilers. There is a
Durham
solar room with fully working components from our entire
Greenskies solar range and a pitched roof for practical
Workington
Belfast
training, as well as a large commercial training room.
Burnley
West Thurrock and Clay Cross
Wakefield
W
Dublin
Clay Cross
Further academies are located at West Thurrock in
Wrexham
Essex and Clay Cross in Derbyshire, both of which offer
Worcester
a comprehensive choice of courses.
Tredegar
West Thurrock
Wiltshire
Camborne
28
Cambridge
Paignton
Commercial product courses
Along with Worcester’s expanding range of commercial products, Bosch Commercial and Industrial Heating also offers
training on a range of commercial technologies. Our commercial technical training officers have many years’ experience
as heating technicians and can deliver first-class training from renewables to Combined Heat and Power (CHP), as well
as industrial boilers that reach up to 19.2MW.
Worcester also runs certified Commercial ACS training and assessment, equipping installers with the relevant
qualifications for the changeover from domestic to commercial gas work.
As well as the extensive commercial appliance training we can offer at our centres, we offer CIBSE certified CPD
seminars as well as on site training when you need it. For further information, contact our Training Helpline on
0330 123 0166 or email us at training@uk.bosch.com
Worcester commercial training courses
Bosch commercial training courses
Greenspring CWi47 gas-fired condensing
GB312 & GB402 overview.
instantaneous water heater.
Solar thermal product overview.
GB162 product overview.
GWPL Gas Absorption Heat Pumps overview.
GB162 domestic.
CHP overview.
GB162 commercial.
Commercial controls overview.
Greenstar Heat Distribution Unit.
Commercial ACS training and assessment – CODNCO1
(includes CIGA1 - Indirect fired heating appliance
and equipment, ICPN1 - Pipework in excess of 35mm
and TPCP1A - Testing and purging) Certified by
Logic Certification.
CWi47 Water
Heater
GB162
Overview
GB162
Domestic
GB162
Commercial
Heat
Distribution Unit
CODNCO1
Duration
1 Day
1 Day
1 Day
1 Day
1 Day
5 Days
Cost
Free*
Free*
Free*
Free*
Free*
£780
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Changeover
qualification
from domestic to
commercial,
including
CIGA1, ICPN1,
TPCP1A
Worcester
D
D
D
D
D
D
Clay Cross
U
U
U
U
U
U
D
D
D
D
D
D
D
D
D
D
D
D
D
U
U
U
Worcester courses
Training course covers
Specification
Installation
Commissioning
Servicing
Maintenance
Course locations
Wakefield
West Thurrock
College Links†
Mobile
U
U
U
U
Coming soon 2015
D
U
U
*A holding fee of £65 applies to free courses and is refunded on attendance of the course. If a booking is cancelled more than 10 working days before
the course date, the fee will be fully refunded. The fee is non-refundable if a cancellation is made less than 10 working days before the course date.
†Please contact Worcester Training for specific colleges.
29
Additional product and
industry training courses
The diversity of products in today’s heating industry gives you the opportunity to expand your expertise, whilst offering
more choice to your customers. Worcester provides comprehensive training from all its academies on its entire range of
technologies. Call us on 0330 123 0166 to order a full course training brochure or to book yourself onto a training course,
alternatively, you can visit www.worcester-bosch.co.uk/training
Oil-fired product courses
Worcester commercial product courses
• Greenstar Danesmoor & Heatslave II high efficiency
• Greenspring CWi47 water heater.
• GB162 overview.
• GB162 domestic.
• GB162 commercial.
• Greenstar Heat Distribution Unit.
• Commercial ACS training and assessment – CODNCO1.
condensing oil-fired boilers.
• Oil advanced fault finding.
• OFTEC 50.
• OFTEC 101/105e, OFTEC 600a and OFTEC
101/105e/600a.
Renewable product courses
Bosch commercial product courses
• Renewables overview.
• Greenskies solar.
• Greenskies advanced solar.
• Introduction to heat pumps.
• Greenstore LECP ground source heat pumps.
• Greensource air to air heat pumps.
• GB312 & GB402 overview.
• Solar thermal product overview.
• GWPL Gas Absorption Heat Pumps overview.
• CHP overview.
• Commercial controls overview.
Industry focused courses
• Hot water systems & safety.
• Chemical water treatment.
• Construction skills F-Gas training/assessment
certification.
• IDHEE domestic heating design.
• Domestic ACS training and assessment – reassessment.
CCN1 + 3 appliances.
•
QCF Level 3 Award
– Air source and ground source heat pumps.
– Air to water and split air to water heat pumps.
– Solar thermal.
• MCS Made Easy.
• Green Deal.
• LPG Changeover.
• WRAS Water Regulations.
30
A complete after-sales service
As part of the worldwide Bosch Group, Worcester strives to
Spares
maintain the highest possible standards of after-sales care.
Genuine replacement parts for all supported Worcester
products are readily available from stock, or on a next day
Worcester Contact Centre
delivery basis. Visit www.worcester-bosch.co.uk/spares
Should you require support, our award winning Contact
to find your local stockist.
Centre team, based at our head office in Worcester, are
ready to take your calls. Whatever your query our contact
Customer Technical Support
centre operators along with our nationwide team of
The Worcester Technical Helpline is a dedicated phone
engineers are ready to help you.
line – committed to providing a comprehensive service to
complement the brand name and quality of our products.
Tel: 0330 123 9559
Our experienced team of technical experts provides
answers to queries of a technical nature across the entire
Opening times
Worcester range.
Monday – Friday: 7.00am – 8.00pm
Saturday: 8.00am – 5.00pm
Technical Support
Sunday: 9.00am – 12 noon
Tel: 0330 123 3366
Bank Holidays: 8.00am – 4.30pm
Fax: 01905 752 741
Email: technical-advice@uk.bosch.com
Opening times
Monday – Friday: 7.00am – 8.00pm
Saturday: 8.30am – 4.00pm
Bank Holidays: 8.00am – 4.30pm
ErP Technical Helpline
Tel: 0330 123 3641
Email: ErP-advice@uk.bosch.com
31
Useful numbers
Customer Service
Sales
Engineer Appointments
Tel: 0330 123 9669
Email: service-appointment@uk.bosch.com
sales.mailbox@uk.bosch.com
or telephone 0330 123 9339
Spare Parts
Service Enquiries
Tel: 0330 123 9779
Email: service-enquiries@uk.bosch.com
spares.mailbox@uk.bosch.com
or telephone 0330 123 9559
Technical Helpline (Pre & Post Sales)
Guarantee Registration
Tel: 0330 123 3366
To register your Worcester guarantee,
technical-advice@uk.bosch.com
please visit our website
www.worcester-bosch.co.uk/registration,
Renewables Technical Helpline
download our guarantee
Email: renewable-advice@uk.bosch.com
registration app or
or telephone 0330 123 9229
telephone 0330 123 2552
ErP Technical Helpline
Guarantee
app
Tel: 0330 123 3641
ErP-advice@uk.bosch.com
Training
Tel: 0330 123 0166
training@uk.bosch.com
Literature
Email: brochure-request@uk.bosch.com
or download instantly from our website
or telephone 0330 123 9119
Calls to 03 numbers cost no more than a national rate call to an 01 or 02 number and must count towards any inclusive minutes in the same way as 01 and 02 calls.
These rules apply to calls from any type of line, including mobile, BT, other fixed phone line or payphone. Calls from mobiles and some other networks may vary.
Calls to and from Bosch Thermotechnology Ltd may be recorded for training and quality assurance purposes.
worcester-bosch.co.uk
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