Heatrae Sadia Multipoint Instantaneous User manual

Multipoint Instantaneous
Fitting Instructions

 This product can be used by children aged from 8 years and above and
persons with reduced physical sensory or mental capabilities or lack
of experience and knowledge if they have been given supervision or
instruction concerning use of the product in a safe way and understand
the hazards involved. Children shall not play with the product. Cleaning
and user maintenance shall not be made by children without supervision.
Children must be supervised to ensure they do not play with the product.
Contents
1. Introduction...............................................................................................3
1.1 General ...............................................................................................3
1.2 Symbols used......................................................................................3
1.3 Abbreviations.......................................................................................3
1.4 Liabilities .............................................................................................3
2. Safety.........................................................................................................4
2.1 General safety warnings .....................................................................4
2.2 Recommendations ..............................................................................4
2.3 Specic safety instructions..................................................................4
3. Technical specications ..........................................................................5
3.1 Technical data .....................................................................................5
3.2 Dimensions and connections ..............................................................5
3.3 Electrical Diagram(s)...........................................................................5
4. Description of the product.......................................................................6
4.1 General description .............................................................................6
4.2 Operation principle ..............................................................................6
4.3 Main components................................................................................6
5. Before installation ...................................................................................7
5.1 Installation regulations ........................................................................7
5.2 Installation Requirements....................................................................7
5.3 Choice of location................................................................................7
6. Installation.................................................................................................8
6.1 General ...............................................................................................8
6.2 Water Connections..............................................................................8
6.3 Electrical Connections.........................................................................8
7. Commissioning.........................................................................................10
7.1 General ...............................................................................................10
7.2 Checklist before commissioning..........................................................10
7.3 Commissioning procedure ..................................................................10
8. Operation...................................................................................................10
8.1 General ...............................................................................................10
9. Troubleshooting........................................................................................11
9.1 General ...............................................................................................11
10. Decommissioning..................................................................................11
10.1 Decommissioning procedure.............................................................11
11. Spare parts .............................................................................................12
Warranty ........................................................................................................14

3
1. Introduction
1.1 General
The following instructions are offered as a guide to
the user and installer.
The installation must be carried out by a competent
plumbing and electrical installer in accordance
with Building Regulation G3 (England and Wales),
Technical Standard P3 (Scotland) or Building
Regulation P5 (Northern Ireland) and the Water
Fitting Regulations (England and Wales) or Water
Byelaws (Scotland).
1.2 Symbols used
In these instructions, various risk levels are employed
to draw the user’s attention to particular information.
In doing so we wish to safeguard the user, avoid
hazards and guarantee the correct operation of the
product.
WARNING
Risk of dangerous situation causing slight
physical injury.
CAUTION
Risk of material damage.
Signals important information.
1.3 Abbreviations
`RCD – Residual current device
`MCB – Miniature circuit breaker
1.4 Liabilities
Manufacturer’s liability
Our products are manufactured in compliance with
the requirements of the various applicable European
Directives.
This product complies with the requirements of the
CE marking directive.
In the interest of UK customers, we are continuously
endeavouring to make improvements in product
quality. All the specications stated in this document
are therefore subject to change without notice.
Our liability as the manufacturer may not be invoked
in the following cases:
`Failure to abide by the instructions on using the
product.
`Faulty or insufcient maintenance of the
product.
`Failure to abide by the instructions on installing
the product.
Installer's liability
The installer is responsible for the installation and
the commissioning of the product. The installer must
respect the following instructions:
`Read and follow the instructions given in the
manuals provided with the product.
`Carry out installation in compliance with the
prevailing legislation and standards.
`Perform the initial start-up and carry out any
checks necessary.
`Complete the commissioning checklist.
`Explain the installation to the user.
`If maintenance is necessary, warn the user of
the obligation to check the product and maintain
it in good working order.
`Give the instruction manual to the user.
Users liability
To guarantee optimum operation of the product, the
user must respect the following instructions:
`Read and follow the instructions given in the
manuals provided with the product.
`Call on qualied professionals to carry out
installation and initial start-up.
`Get your installer to explain your installation to
you.
`Have your required checks and services done.
`Keep the instruction manuals in good condition
and close to the appliance.

4
2.3 Specic safety instructions
WARNING
DO NOT operate the product if:
`Water ceases to ow during use.
`Water has entered inside the
product because of an incorrectly
tted cover.
`If the product is damaged.
(in all cases turn off mains power and
isolate water supply)
2. Safety
2.1 General safety warnings
WARNING
`Only competent persons having
received adequate training are
permitted to work on the product
and the installation.
`Do not tamper with the safety
valve supplied.
`Before any work, switch off the
mains supply to the product and
water supply.
`Do not switch on if there is a
possibility that the water in the
product is frozen.
2.2 Recommendations
CAUTION
`Annual maintenance is
recommended by a competent
person.

5
Standards and approvals
`Complies with the requirement of EN 60335-2-
35.
`British Electrotechnical Approvals Board (BEAB)
approved.
`Complies with European Community Directives
(CE).
`Complies with UK water regulations, kiwa
approved
3.2 Dimensions and connections
Dimensions
Height - 210mm
Width - 160mm
Depth - 104mm
3.3 Electrical Diagram(s)
Neon
7kW / 9kW
Inner
container
red
black
green/yellow
Pressure
switches
N L
Terminal
block
red
red
red
red
red
Figure 1 – Wiring Diagram
3. Technical specications
3.1 Technical data
Model numbers
7.0kW - 95 050 424
9.0kW - 95 050 425
Connections
Inlet / Outlet connection - 1/2” BSP male
Water entry point - bottom
Cable entry point - bottom or rear
Electrical rating
6.4 - 7.0kW 230 - 240V
8.2 - 9.0kW 230 - 240V
Rated pressure
7kW / 9kW Minimum supply pressure 0.1Mpa (1 bar)
Maximum supply pressure 0.7Mpa (7.0 bar)
Enclosure rated
IP X5
Materials
Backplate, cover - ABS
Element(s) - copper sheathed rod type
Inner container - glass reinforced nylon
Supplier’s name or trade mark Heatrae Sadia Multipoint Instantaneous
Supplier’s model identier 7kW 9kW
The declared load prole XXS XXS
The water heating energy efciency class of the model A A
The water heating energy efciency in % 38.5 38.5
The annual electricity consumption in kWh 479 479
Daily fuel consumption in kWh 2.206 2.206
Specic precautions that shall be taken when the water heater is
assembled, installed or maintained and disposed of at end of life
See sections 3 - 10
Table: Technical parameters in accordance with European Commision regulations 814/2013
and 812/2013

6
4. Description of the product
4.1 General description
These heaters are of the closed outlet type (unvented
pressure system) and are suitable for connection to
normal cold water mains supply up to a maximum of
0.7MPa (7.0 bar) for 7 & 9 kW
4.2 Operation principle
The product is used to provide the user with hot
water at point of use.
By turning on the tap water ows through the
product which then switches the element on to heat
the water.
4.3 Main components
Fixing holes (3 nos.)
Temperature
Limiter 1
(one shot
Over temp
Cut-out)
Cable grip
Drain plug
7kW / 9kW
Differential pressure
Switch assembly
Mains connector block
Water container
Assembly
Temperature limiter 2
(over temp cut-out)
Neon
Figure 2 – Internal view

7
A - Outlet valve
B - Flow restrictor
C - Multipoint instantaneous
D - Expansion relief valve
E - Services stop valve
A
B
C
D
E
Figure 3
Electrical
Before tting the product, ensure that the consumer
unit and any switches are suitable for the additional
load. If in doubt, contact your electricity supplier or a
qualied electrician.
WARNING
This product must be earthed.
A residual current device (rcd), formerly known as an
earth leakage circuit breaker (elcb), with a tripping
current of 30mA must be incorporated in the circuit.
Multipoint Instantaneous unit
(use rear entry when it is
possible)
80A or 100A main switch
Meter
Meter ‘tails’
Consumer
unit
RCD (can be part of
the consumer unit)
Double pole isolating switch:
pull cord or wall mounted in accordance
with IEE regulations
Figure 4
5.3 Choice of location
The product must be mounted on a at surface which
covers the full width and length of the back plate. It
is important that the wall surface is at otherwise
difculty may be encountered when tting the cover.
DO NOT t the product to the wall and tile up to the
case. It must be tted on to a nished at and even
wall surface. This allows removal for servicing.
5. Before installation
5.1 Installation regulations
WARNING
`ISOLATE the electrical and water
supplies before removing the
cover.
`ISOLATE the electrical and water
supplies BEFORE proceeding
with installation or servicing.
`The product is NOT SUITABLE
for mounting into steam rooms or
steam cubicles.
WARNING
Installation of the product must be carried
out by a qualied engineer in accordance
with prevailing and national regulations as
listed below.
`Building Regulations
`The Building Standards (Scotland)
`The Building Regulations
(Northern Ireland)
`I.E.E Electrical Regs
`UK Water Regulations
5.2 Installation Requirements
Plumbing
The plumbing installation must comply with Water
Regulations.
All 7kW and 9kW heaters have an operational
pressure range of 0.1Mpa (1bar) to 0.7Mpa (7.0bar).
Both inlet and outlet connections are suitable for
15mm diameter copper pipe.
The tee piece and expansion relief valve must be
situated where shown (see gure 3, item D) and the
relief valve discharge port plumbed via an air break
(tundish) to a safe, visible place where there is no
risk to persons.
The discharge pipe must fall continuously from the
valve outlets and be unobstructed.
An isolating stop valve MUST be incorporated to the
main water supply to comply with Water Regulations
To obtain optimum performance a ow restrictor
(isolating ball valve) must be tted where shown (see
gure 3, item B). This provides temperature control
during commissioning (see 7.3 p10).

8
Connect the cold water supply pipe to the inlet of the
product, this is a 1/2” BSP connection.
Fit top and bottom screws and secure the back plate
to the wall ensuring that it is level.
Connect all other components as per gure 3. Turn
the isolating stop valve on slowly and check for leaks
in all pipe work, rectify as necessary.
Turn off the isolating stop valve.
6.3 Electrical Connections
WARNING
This product must be earthed.
The installation, supply cable and circuit protection
must conform to the latest BS7671 ‘Requirements
for electrical installations’ (IEE Wiring Regulations).
The Multipoint Instantaneous heater must only be
connected to a 230/240V ac supply.
Before making any electrical connections within the
installation, make sure that no terminal is live. If in
doubt, SWITCH OFF the whole installation at the
consumer unit or switch fuse (where tted).
The Multipoint Instantaneous heater must be
connected to its own independent electrical
circuit.
Check that your consumer unit (main fuse box):
1. has a main switch rating of 80A or above.
2. has a spare fuse way which will take the fuse/mcb
you need to t - (see gure. 4). If so, you can wire
the Multipoint Instantaneous direct to the spare fuse
of your consumer unit via a suitably rated isolating
switch- (see gure 4). Note that not all consumer
units will accept a 35/40/45A sized fuse.
If point 1 and 2 are not achievable, the installation is
not straight forward, since it could involve installing a
new consumer unit to serve the whole house or just
the Multipoint Instantaneous. You will need to call in
your Regional Electricity
Company to check the circuit and make the
connections to the meter or service connector
block. They should also check the earth bonding of
items in the vicinity.
A residual current device (rcd), formerly known as an
earth leakage circuit breaker (elcb), with a tripping
current of 30mA must be incorporated in the circuit.
6. Installation
6.1 General
After reading the previous sections in this booklet
and choosing a good location for the product please
install, paying attention to the following plumbing,
electrical and commissioning sections.
Mounting
Preparation
Remove the xing screw which holds the front cover
onto the back plate of the product. Carefully remove
the cover.
Fix the product heater loosely to the wall. The
wallplugs provided are suitable for most brick walls
(use a 6.5mm diameter masonry drill), but if your wall
is plasterboard or soft building block you should use
special wallplugs and an appropriate drill obtainable
from most hardware stores.
6.2 Water Connections
Plumbing
Decide where to connect to the water mains for your
feed to the product. Ensure that the pipe you have
selected is not a gas pipe, a hot water pipe or from a
cold water storage tank.
Cut the necessary pipe work to length, offer up to the
installation before making any soldered joints. Ensure
that the pipe is the correct length, as shortening it
can be difcult once joints have been made.
An isolating stop valve MUST be incorporated to the
main water supply to comply with Water Regulations
Assemble the installation before making any
soldered joints. DO NOT use jointing compounds on
any pipe ttings for the installation.
Remove the product before soldering the
connections.
WARNING
DO NOT solder pipes or ttings within
300mm of the heater once the pipe work
is located in the product as heat transfer
can damage components.
It is essential to ush the pipe in order to clear
debris, particles of solder and swarf.
Turn the water off after ushing using the isolating
stop valve.

9
Multiple installation
When larger volumes of water are required
than can be provided by one heater, multiple
installations can be made by connecting a number
of heaters in PARALLEL of the cold feed manifold
(See gure 6, below). This is the ONLY method
that is recommended provided all heaters receive
acceptable ow rates (2.5ltr/min recommended). DO
NOT plumb these heaters in series.
To set the heaters in this arrangement use the
appropriate procedure as described previously. Each
heater in parallel must be set individually.
In this application restrictors capable of closing ow
completely should be used so that as each heater is
set in turn, the other heaters in the installation may
be isolated.
NOTE - In this application if low ow rates exist to
plumb the cold manifold in 22mm pipe with 15mm
pipe spurs to each heater.
A double-pole isolating switch (rated at 30A for 7kW
and 40A for 9kW), with a contact separation of at
least 3mm in each pole, must be incorporated in
the circuit. This must have a mechanical indicator
showing when the contacts are open. An indicator
lamp alone is not sufcient. Only cord operated
switches can be tted in bathrooms.
Cable entry
Cable entry can be from the rear (see gure 5,
below) or from the bottom. When opting for bottom
entry make the cut-out to suit the cable before the
tting back plate to the wall.
Make cut-out
using sharp knife
Figure 5
Place the cover onto the back plate.
Secure the cover to back plate using screw provided.
B - Restrictors F - Cold water supply manifold
D - Expansion relief valves G - Hot water supply manifold
E - Service stop valve
B
D
E
F
G
Figure 6

10
8. Operation
8.1 General
Once installed, the heater will operate automatically
when the outlet valve is opened. The valve must
be opened fully to obtain the set ow/temperature.
Reduced ow at the outlet will result in hotter water
being delivered.
On closing the outlet valve the heating element will
automatically shut down provided this tap has been
fully turned off by the user.
7. Commissioning
7.1 General
After installing the product in the previous section
please follow the following steps to complete the
installation.
7.2 Checklist before commissioning
Check all water connections for leaks and rectify as
necessary.
7.3 Commissioning procedure
Setting ow rate
To set the ow rate, make sure the water and power
are turned off. Open the outlet valve fully (see gure
3, add page number) and close the ow restrictor.
Open the stop valve and open the ow restrictor
(allowing all air to be purged). When all air is purged
switch the power on, wait for a few seconds while the
water is heated and adjust the ow restrictor to give
the required temperature.
Remember the outlet valve is fully opened at this
point so the required temperature may need further
adjustment.
It is important to note when setting the ow rate/
temperature that 48°C is the point at which the
average person cannot hold his or her hand under
a stream of water. Under most circumstances the
water temperature need not be higher than this
and it is recommended that this temperature is not
exceeded for normal use.
WARNING
These heaters will supply only one outlet
at any time and must be controlled by a
single outlet valve. DO NOT USE WITH
MIXER VALVES.

11
10. Decommissioning
10.1 Decommissioning procedure
`Isolate electrical supplies and make safe
`Isolate the water supply
`Drain the product
`Remove the product
`Cap pipework
Environmental information
Products are manufactured from many recyclable
materials. At the end of their useful life they should
be disposed of at a Local Authority Recycling Centre
in order to realise the full environmental benets.
9. Troubleshooting
9.1 General
Your product should give trouble free operation.
However if a problem occurs the table below should
allow most faults to be identied. Fault nding should
only be carried out by a competent person.
For any faults that cannot be identied using the
fault nding chart please contact the Heatrae Sadia
Service Department.
Symptom Possible cause Remedy
1. Water too hot A. Water ow too low Increase the ow by turning the stop valve
2. Water too cold A. Electrical power to the
Multipoint heater is off
Ensure that the electrical supply to the Multipoint
B. Water ow too high Reduce the ow by adjusting the water control
isolating valve
C. Element fault Check for open circuit
3. Temperature
varies while
showering, cycling
hot/cold
A. Pressure switch is operating,
normally making a "click" as it
does so
Check water pressure/ow
B. Input pressure is below 1.0 bar
(14.5psi); ow is not stable
Ensure that your stop cock and servicing valve
are opened fully
4. "Power on"
indicator not lit.
Isolating switch "ON"
but its neon not lit
A. Cartridge fuse or miniture
circuit breaker (mcb) has
operated in your fusebox (or
consumer unit) or switch fuse
Switch off Multipoint Instantaneous and isolating
switch. Renew fuse, reset the mcb. If they
operate a second time, contact a qualied
electrician
B. Residual current device (rcd)
or (earth leakage circuit breaker)
has operated
Follow the same procedure as above. If this has
happened with a "split load" consumer unit on
initial installation, check that the neutral core
of the Multipoint Instantaneous feed cable is
connected to the "protected" neutral bar of the
unit
5. Water emerges
from expansion
relief valve
A. Expansion relief valve has
operated
1. Switch off immediately at isolating switch
2. Turn water off at the servicing valve (if tted)
or stop valve
3. Contact Heatrae Sadia Service Department
6. No water ows
with valve open
A. Water supply turned off Turn on water supply
B. Unit frozen Turn OFF ELECTRICITY at isolating switch
and contact installer DO NOT USE THE
MULTIPOINT INSTANTANEOUS

12
11. Spare parts
The following comprehensive list of spare parts
is available for your product. Please refer to the
rating label on the right hand side of your product
before ordering to ensure the correct spare parts are
obtained.
Do not replace with parts not recommended by
Heatrae Sadia - this will invalidate your warranty and
may render the installation dangerous.
Description Code No
1 Heat Exchanger 7kW 95 606 965
Heat Exchanger 9kW 95 606 966
2 Temperature limiter 1 95 612 035
3 Temperature limiter 2 95 612 036
4 Pressure differential switch assembly 7/9kW 95 613 005
5 Multipoint instantaneous cover 95 614 108
6 Neon assembly 95 615 058
7 Inlet boss assembly 95 607 106
8 Outlet boss assembly 95 607 109
9 Terminal Block 95 607 249

13
1
234
5
6
7
8
9
Figure 7

14
Warranty
The product warranty is for a period of two years
from the date of purchase provided:
The product has been installed in accordance with
these instructions, all relevant Codes of Practice and
Regulations in force at the time of installation and that
all necessary inlet, vent and electrical connections
have been tted correctly.
Any valves or controls are of the Heatrae Sadia
recommended type.
The product has not been tampered with.
The product has been used only for heating potable
water.
The product is not covered against damage by frost
or due to the build-up of scale. Please note that if
Heatrae Sadia personnel or agents are requested to
descale a unit, this work will be chargeable.
This warranty does not affect the statutory rights of
the consumer.
The policy of Heatrae Sadia is one of continuous
product development and, as such, we reserve the
right to change specications without notice.

15

16
PN 36 00 6037 Issue 6
©Heatrae Sadia 2015
Please follow us online:
Electric Water Heating Co.
2 Horsecroft Place
Pinnacles
Harlow
Essex CM19 5BT
Tel: [phone]
E-Mail: [email protected].uk
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Units 9 & 10
Hexagon Business Centre
Springeld Road
Hayes
Middlesex UB4 0TY
Tel: [phone]
Parts Center
Tel: [phone]
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Newey & Eyre
Unit 3-5 Wassage Way
Hampton Lovett Ind. Estate
Droitwich, Worcestershire
WR9 0NX
Tel: [phone]
Fax: [phone]
UK Spares Ltd
Unit 1155
Aztec West
Almondsbury
Bristol BS32 4TF
Tel: [phone]
Alternatively contact your
local supplying merchant
or wholesale branch or use
our online stockist nder at
www.interpartspares.co.uk
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without notice.
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Heatrae Sadia has its very own dedicated nationwide network of highly trained
customer support engineers so you can have peace of mind that we’re always
here to help.
2
2 YEAR
WARRANTY
SPECIFICATION ADVICE HOTLINE
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