geminox EBS-1 100 Owner's manual

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IMPORTANT
FOLLOWCOMMISSIONINGINSTRUCTIONS
OBSERVETHEWARRANTYCONDITIONS
READTHEWHOLEMANUALCAREFULLY
NOSAFETYDISCHARGETOBEREDUCEDINSIZE.
CONDENSETOBE32mmPVC
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High fidelity heat
EBS-1
T30.39005.04

- 2 -
CONTENTS
I-SAFETY PRECAUTIONS ...................................................................................................................... 4
1-SYMBOLS.............................................................................................................................................. 4
2-SAFETY PRECAUTIONS...................................................................................................................... 4
2.1 - Fitting, commissioning ............................................................................................................... 4
2.2 - Operation ................................................................................................................................... 4
2.3 - Maintenance .............................................................................................................................. 4
2.4 - User information from the installer ............................................................................................. 4
II - PRESENTATION ................................................................................................................................... 5
1-DESCRIPTION ...................................................................................................................................... 5
2-RANGE.................................................................................................................................................. 5
III - TECHNICAL SPECIFICATIONS ........................................................................................................... 6
1-CHARACTERISTICS FOR THE EBS-1................................................................................................. 6
2-DIMENSIONS........................................................................................................................................ 7
3-LIST OF COMPONENTS....................................................................................................................... 8
3.1 - EBS-1 models ............................................................................................................................ 8
4-DOMESTIC HOT WATER PRODUCTION BY THE EXCHANGER ..................................................... 9
IV - INSTALLATION ................................................................................................................................... 10
1-GENERAL............................................................................................................................................ 10
2-ASSEMBLING THE ACCESSORIES DELIVERED WITH THE DOMESTIC HOT WATER 
PRODUCTION SYSTEM (ELBOW + TUBE + INSULATION)............................................................. 10
3-FITTING THE IMMERSION HEATER KIT........................................................................................... 10
4-SELECTIVE VALVE KIT (EBS-1 CONNECTION WITH A THI.C OR ZEM.C BOILER - OPTION)..... 11
5-SELECTIVE VALVE KIT (EBS-1 CONNECTION WITH A ZEM.C BOILER - OPTION)...................... 11
6-HYDRAULIC CONNECTION............................................................................................................... 12
6.1 - GEMINOX recommendations .................................................................................................. 12
6.2 - EBS-1 WRc approval amendment ........................................................................................... 12
6.3 - Hydraulic connections for cylinders ......................................................................................... 15
6.4 - Accessories to connect, install or adjust .................................................................................. 19
6.5 - Hydraulic diagram .................................................................................................................... 19
7-ELECTRICAL CONNECTION.............................................................................................................. 20
7.1 - EBS-1 electrical diagram ......................................................................................................... 20
V-COMMISSIONING ............................................................................................................................... 22
1-FILLING THE INSTALLATION WITH WATER .................................................................................... 22
2-VERIFICATIONS PRIOR TO COMMISSIONING................................................................................ 22
3-USER INFORMATION......................................................................................................................... 22
4-COMMISSIONING............................................................................................................................... 23
4.1 - Boiler with domestic hot water load pump ............................................................................... 23
4.2 - Boiler equipped with electronic regulation ............................................................................... 23

- 3 -
CONTENTS
VI - MAINTENANCE .................................................................................................................................. 24
1-TANK MAINTENANCE........................................................................................................................ 24
2-DRAINING ........................................................................................................................................... 24
3-P&T VALVE ......................................................................................................................................... 24
4-CHANGING THE THERMOSTATS OR THE THERMOMETER ......................................................... 25
4.1 - Bulbs positioned in the pocket (7) ........................................................................................... 25
4.2 - Bulb positioned in the pocket (D) ............................................................................................. 25
4.3 - Changing the thermostats or the thermometer ........................................................................ 25
VII - PARTS LIST ........................................................................................................................................ 26
VIII - RATING PLATE ABBREVIATIONS .................................................................................................... 28
IX - WARRANTY TERMS .......................................................................................................................... 29

- 4 -
I - SAFETY PRECAUTIONS
1- SYMBOLS
In this document:
Safety recommendations, warnings
and recommendations are by a warning-
triangle symbol accompanied by bold text.
2 - SAFETY PRECAUTIONS
-The fitting, the electrical connection and commis-
sioning or any modifications must be carried out
by a competent, qualified engineer in accordance
with the relevant requirements.
Respect the electrical connection plan! (§ 7 -
page 20)
- Before installation: make sure the appliance is
turned-off at all points. Secure against involuntary
re-triggering.
- The domestic hot water tank must only be used to
heat water for domestic purposes.
Statutory conditons for installation and mainte-
nance in residential buildings.
• Decree of 23 June 1978 and modifying de-
cree of 30 November 2005
Heating instructions, hot water supply, layout
and safety rules. In particular, ensure that the
maximum temperature for distributing hot wa-
ter is respected.
Athermostaticmixer must be placed on the do-
mestic hot water distribution to limit the tempe-
rature at the drawing point (50 °C).
• Decree from the Ministry of Health relating
to protection of water for human consump-
tion. In particular, the need to place a discon-
nection system on the installation's filling
system and to use materials and accessories
that benefit from a sanitary conformity certifica-
te for domestic water distribution circuits.
-Never place the insulation valve
between the safety control box and the
tank.
-Respect the recommended pressure.
- Respect these installation instructions to ensure
flawless operation
- Do not block the safety valve's evacuation pi-
pe:
It is normal that the domestic hot water safety box
lets a little water escape when heating the hot wa-
ter tank (water dilation of the tank).
- Recommendations for the user:
• take out an inspection/maintenance contract
with an competent and qualified engineer.
• have the appliance serviced at regular inter-
vals (annually)
•ensure that the safety and control devices (3
bar safety valve, air bleed, safety control box,
etc.) are operating properly - § 3 - page 24.
- Respect the safety recommendations of
chapitre VI - MAINTENANCE - page 24.
- Also check that neither the installation nor the do-
mestic hot water tank present any water leaks
(leaks may produce a risk for safety and shorten
the lifespan).
- Only use original spare parts.
- Inform the user onthe operating modes of the ap-
pliance and show him how to use the controls.
- Inform the user that he must never undertake any
modifications or repairs of the appliance.
- Inform the user of the various possible operating
faults and dangers.
- Give the user instructions to the user.
!
2.1 - Fitting, commissioning
!
2.2 - Operation
2.3 - Maintenance
2.4 - User information from the installer

- 5 -
II - PRESENTATION
1- DESCRIPTION
The EBS-1 domestic hot water production systems
are used to produce domestic hot water when the
installation contains a boiler that only produces
heat.
Under their casing, they have, in thermoformed
ABS:
- a stainless steel tank (100/150/200 or 300 litres)
comprising:
• a stainless steel exchanger,
• an access flap,
• polystyrene insulation that can be easily
removed.
- a domestic hot water temperature adjustment
thermostat,
- a thermometer,
- a water overheating safety thermostat (90°C),
- a 7 bar P&T valve,
- an immersion heater kit,
- an elbow and a tube for the domestic cold water
intake,
- insulation to be installed in the base under the
tank,
OPTIONAL:
- Selective valve kit (THI.C/EBS-1)
- Selective valve kit (ZEM.C/EBS-1)
2 - RANGE
Models Capacity
EBS-1 100
EBS-1 150
EBS-1 200
EBS-1 300
100 litres
150 litres
200 litres
300 litres

- 6 -
III - TECHNICAL SPECIFICATIONS
1 - CHARACTERISTICS FOR THE EBS-1
* the electrical power may be reduced to 2000 W or
1000 W if necessary. This choice is made by the
installer during electrical connection - refer to the
immersion heater kit's manual.
Models EBS-1
100 150 200 300
WRC number 0210132
Tank water capacity litre 100 150 200 300
Tank useful volume litre 98.8 148.6 192.6 292.2
Primary capacity (internal exchanger volume) litre 4,1 4,3 9,4 9,7
Exchanger surface dm² 78,5 81,7 177,5 184,6
Nominal exchanger power kW 29 29 55 57
Exchanger load losses mCE 0.7 0.7 2.8 3.2
Continuous flow rate at 40°C l/min 13.88 13.88 26.32 27.27
Load losses at continuous flow rate mCE 0.021 0.021 0.074 0.080
Primary flow rate l/h 1249 1249 1895 1964
Maximum domestic hot water storage temperature °C 80
Domestic hot water temperature safety thermostat °C 90
Tank cooling constant according to EN 625 Wh/24h.l.°C 0.31 0.27 0.26 0.24
Static tank heat losses (maintenance consumption) kWh/24h 1.390 1.852 2.331 3.266
Heat losses (tank at 65°C) W58 77 97 136
Max service pressure bar/MPa 10/1
Thermostat preset °C 20 to 80
Thermostat differential °C 6
Domestic cold water intake inch 3/4 3/4 3/4 3/4
Domestic hot water outlet inch 3/4 3/4 3/4 3/4
Primary inlet inch 3/4 3/4 3/4 3/4
Primary outlet inch 3/4 3/4 3/4 3/4
Recycling inch 3/4 3/4 3/4 3/4
Access flap mm 100
Exchanger tube mm 25 x 1
Max electrical power with the immersion heater kit* W3000
Empty weight kg 27.5 38 49 63.5
Packaged weight kg 40 51 62.5 79

- 7 -
TECHNICAL SPECIFICATIONS
2 - DIMENSIONS
EBS-01-3E
297
297
600
A
30
782
Fig. 1
Models EBS-1 100 EBS-1 150 EBS-1 200 EBS-1 300
A 795 1020 1245 1695
Top view

- 8 -
TECHNICAL SPECIFICATIONS
3 - LIST OF COMPONENTS
3.1 - EBS-1 models
2
1
3
4
1
2
4
5
1
2
4
13
11
8
613
7
12
5
11
10
9
EBS-02-3E
3
16
3
15
14
15
16 18
3
18
Fig. 2
1) Primary inlet
2) Domestic hot water outlet
3) Domestic hot water recycling
4) Primary outlet
5) Domestic cold water inlet
6) Hot water tank
7) Pocket for domestic hot water setting thermostat
bulb
8) Access flap
9) Domestic hot water temperature setting
thermostat
10)Thermometer
11)Stainless steel coiled pipe
12)Domestic cold water elbow and tube*
13)Polystyrene insulation
14)Base insulation under tank*
15)Immersion heater kit
16)7 bar P&T valve
17)Water overheating safety thermostat (90°C),
18)P&T valve drain
* Accessories to be installed on the tank before it is
put in place

- 9 -
TECHNICAL SPECIFICATIONS
4 - DOMESTIC HOT WATER PRODUCTION BY THE EXCHANGER
Cold water temperature = 10°C
Primary temperature = 80°C
Performances obtained with a power generator at
least equal to that of the exchanger.
(*1): after 10 mins' drawing.
Power
exchanged
at T 30°K
Continuous
flow rate
at
40°C
Specific
flow
rate
Heating
time at
60°C
(*1)
Load
time
Drawable
volume
at 40°C
in 10 min
Drawable
volume at
40°C in
1hour
Drawable
volume
at 40°C
in 10 min
Drawable
volume at
40°C in
1hour
Storage at 80°C Storage at 65°C
kW l/min l/min min min litres litres litres litres
EBS-1 100 29 13.9 20.1 916 251 944 201 895
EBS-1 150 29 13.9 24.3 14 24 317 1011 243 936
EBS-1 200 55 26.3 38.5 917 481 1797 385 1701
EBS-1 300 57 27.3 47.7 14 24 623 1987 477 1841

- 10 -
IV - INSTALLATION
1 - GENERAL
These rules are specific to the buildings where the
appliances are installed.
The appliance must be installed and maintained by
a qualified professional, according to current
statutory texts and industry standards.
The tanks must be installed by a qualified unvented
installer in accordance with G3 Building
Regulations.
2 - ASSEMBLING THE ACCESSORIES DELIVERED WITH THE DOMESTIC HOT
WATER PRODUCTION SYSTEM (ELBOW + TUBE + INSULATION)
- Install the insulation (14) in the base (A),
- fit the elbow (12.1) to the cold water intake weld
(B) below the tank (put it in the required position
to connect the cold water intake),
- Screw the cold water intake tube (12.2) onto the
elbow (12.1) by running it through one of the
openings provided for the purpose in the base
(A).
3 - FITTING THE IMMERSION HEATER KIT
Only Geminox immersion part number
C70.38447 should be used, no other
immersion should be used with the
EBS-1 tank.
Remove the 1''1/2 male plug (7) originally fitted to
the sleeve (8) of the domestic hot water production
system.
Manually screw the immersion heater kit (17) into
the 1''1/2 sleeve (8) while positioning the flat seal
(2).
And follow the kit assembly instructions delivered
with the DHW production system.
12.1
12.2
14
BS-09-0
AB
Fig. 3
!
15 2
7
6
8
EBS-28-3E
Fig. 4

- 11 -
INSTALLATION
4 - SELECTIVE VALVE KIT (EBS-1 CONNECTION WITH A THI.C OR ZEM.C BOILER -
OPTION)
The selective valve kit enables the hydraulic
connection of the EBS-1 with the THI.C or ZEM.C
boilers.
- Refer to the kit assembly instructions.
ref : W07.31709
5 - SELECTIVE VALVE KIT (EBS-1 CONNECTION WITH A ZEM.C BOILER - OPTION)
The selective valve kit enables the hydraulic
connection of the EBS-1 with the ZEM.C boilers.
- Refer to the kit assembly instructions.
ref : V09.37990
THI-37-0
Fig. 5
ZEM-104-0
Fig. 6

- 12 -
INSTALLATION
6 - HYDRAULIC CONNECTION
Burn risk:
Never place the isolation valve between
the safety control box and the tank.
When required by Building control or
local bylaws, a thermostatic mixer must
be placed on the domestic hot water
supply system to limit the temperature
at the drawing point (50°C).
Check that the primary circuit pressure
(exchanger) does not exceed 10 bars or
the maximum acceptable boiler
pressure if this is less than 10 bars.
When the domestic hot water
production system has been selected to
provide its maximum performance,
check that the boiler's flow rate, primary
temperature and power are respected
according to those of the tank
exchanger.
NOTE TO INSTALLER :
Please read fully prior to commencing installation.
Leave Manual with householder after installation.
6.2.1 - TECHNICAL INFORMATION
6.2.2 - MAINTENANCE
BEFORE COMMENCING ANY MAINTE-
NANCE WORK, ISOLATE ALL MAINS
ELECTRICITY SUPPLIES TO THE SYS-
TEM
The tank and Cold Water Supply Kit should be in-
spected annually.
• Close mains supply cock.
• Drain down hot water system including the
tank (Use drain cock and/or the expansion re-
lief valve).
• Check pressure in expansion vessel(s) and re-
charge to 3.5 Bar, if necessary.
• Remove filter in line strainer. Clean or replace.
Reassemble. Refill system.
• Check all pipework for leaks.
• Open P&T valve and check that it discharges
water.
• Open expansion relief valve and check that it
discharges water.
• Check operation of all controls.
Every two years, the following additional mainte-
nance should also be carried out after draining
down.
• Remove Electric Immersion Heater cover (if fit-
ted).
• Disconnect wiring to Immersion Heater Boss (if
fitted).
• Undo securing nuts on heater flange and re-
move flange complete with Electric Immersion
Heater.
• Inspect heater elements and de-scale if neces-
sary.
• Inspect interior of tank and clean out any de-
bris.
• Re-assemble using a new gasket on the flange
and tighten bolts.
• Re-connect Immersion Heater wiring.
• Refill system and check for leaks around flan-
ge.
• Replace Electric Immersion Heater cover.
• Carry out annual inspection as above.
6.2.3 - The opening temperature of the P&T
valve is 90 °C
The position of the tundish shall be visible to the oc-
cupants and shall be positioned away from any elec-
trical devices.
See fig. 7 - page 17for tundish position and dischar-
6.1 - GEMINOX recommendations
6.2 - EBS-1 WRc approval amendment
MODELS EBS-1
100 150 200 300
Operating Pressure 3.5 Bar
Max Water Supply Pressure 12 Bar
Exp Relief Valve Setting 6 Bar
Nominal Storage Capacity
(litres) 100 150 200 300
Pressure & temperature
Relief Valve 7 Bar/90°C
Expansion Vessel Charge
Pressure 3.5 Bar
Weight without water (kg) 27.5 38 49 63.5
Connections
Cold Water Inlet 3/4"
Domestic Hot Water Flow 3/4"
Hot Water Secondary
Returns 3/4"
Primary Flow from Boiler 3/4"
Primary Return to Boiler 3/4"
!
!

- 13 -
INSTALLATION
ge pipe.
The connection details are shown on fig. 7 -
page 17. The relief valve connections should not be
altered or used for any other type of connection.
Details of the discharge pipe and installation requi-
rements can be seen on drawing no. fig. 7 - page 17
and Table 2, Page 11.
Before connecting pipework, fit the Siemens safety
shut off zone valve to the primary return outlet.
The incoming cold water supply pipe must be fitted
with a stopcock before the cold water unvented kit.
A drain cock must be fitted between the unvented kit
and the tank.
The unit should be carried into position within its
packaging and on its pallet.
Once in position, the pallet should be removed.
The tank should be installed on a floor designed to
take the weight of the tank when full of water. Each
litre of water weighs 1 Kg. The actual water content
of each tank should be added to the tank weight to
obtain the total weight of the tank when full to ascer-
tain if the floor is of suitable construction.
300mm clearance should be left on the top of the
tank for access to the anode and inspection door.
No valve shall be fitted between the tank and the ex-
pansion valve.
No other immersion, other than our EBS-1
Immersion Heater should be used on our EBS-1
cylinders.
The EBS-1 range of cylinders is ideally suited for
connection to our Geminox boilers to match the coil
ratings. However, connection to non - Geminox
boilers can be carried out if required. Please
contact our Technical Department for installation
assistance on + 44 (0)1372 722277.
To flush through the tank, simply open inspection
door, disconnect unvented kit and flush through the
tank to the drain by using a hose through the inspec-
tion door.
• This unit is only to be used with our oil or gas
boiler with a thermostatic control. It should not
be used with a solid fuel appliance.
• Please note that if a secondary circuit is used
then an additional expansion vessel may be
required.
• In hard water areas you should not exceed
60°C as a store temperature.
Commissioning
• Check all pipe connections for tightness. Close
drain cock.
• Check pressure(s) in expansion vessel(s) 3.5
bar. Recharge if necessary.
• Fill primary circuits, vent and check for leaks.
• Chock open P&T valve on top of tank (by fitting
manual lever).
• Open stopcock and fill tank with water until if
freely discharges through the outlet from the P
& T valve.
• Remove chock and close P&T valve.
• Test delivery of water from tank by opening
and running all taps, both hot and cold water
and any other water discharges points
(showers etc).
• Check operation of expansion relief valve on
Cold Water Supply kit by lifting manual release
lever and discharging water.
• Check all pipework and connections for leaks
Heating of tank by the boiler
Check any programmers are calling for HOT
WATER. Set hot water thermostat on tank to
Maximum. Run heating boiler until the temperature
gauge on thecylinder indicates approximately 50°C.
Turn down the hot water thermostat and check that
motorised valve closes and loading pump stops.
Check that the boiler shuts down. If the boiler is also
feeding a heating circuit, make sure that there is NO
demand from the heating circuit (Room Stat,
Programmer, Zone Valve etc).
Heating of tank from electric immersion heater
• Switch on the power supply to the Electric
Immersion Heater.
100 300
Results of supply temperature 
1-50 - 220 19 mins 26 mins
Results of the reheat time 
1-50 - 222 13 mins 16 mins

- 14 -
INSTALLATION
• Turn Electric Heater thermostat up and down
to check that heater is turning on and off
correctly.
• Select the desired hot water temperature.
The total fuse rating for the immersion heater is
13.04A, a suitable protective device should be
selected. The boiler should be protected by a fused
spur with a cartridge fuse of no higher than 3A.
Please Note
The Geminox range of products are designed to be
used in installations where the complete system is
supplied by Geminox therefore when used in con-
junction with other products some slight alterations
to the Electrical installation may have to be made.
Important Notice
When the system installed is "Unvented" controlling
the Zone valve by way of the cylinder and overheat
thermostats, follow the steps on section 6.2.3 -
page 12 in this instance the zone valve is called the
"Safety shut off zone valve", the valve is supplied
with the Unvented Kit and must be installed.
The safety shut off zone valve is an important
safety device of the unvented EBS-1 tank and
must be installed. Fit the valve to the return con-
nection of the tank connection No. 4. The valve
is to be controlled via the brown wire of the tank
top cable. Please find the attached photos and
fig. 10 how to connect the "Safety shut off zone
valve".
Safety Discharge Pipe from Tundish
See Table 2 below for sizing details of safety dis-
charge pipe from our tundish.
Worked example :
The example below is for a G 1/2 temperature relief
valve with a discharge pipe (D2) having 4 no. el-
bows and length of 7m from the tundish to the point
of discharge.
From table 2
Maximum resistance allowed for a straight length of
22mm copper discharge pipe (D2) from a G 1/2 tem-
perature relief valve is 9.0m.
Subtract the resistance for 4 no. 22mm elbows at
0.8m each = 3.2m
Therefore, the maximum permitted length equates
to : 5.8m
5.8m is less that 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 val-
ve equates to 18m.
Subtract the resistance for 4 no.28mm elbows at
1.0m each = 4m
Therefore the maximum permitted length equates to
: 14m
As the actual length is 7m, a 28mm (D2) copper pipe
will be satisfactor y.
Table 2
Sizing of copper discharge pipe D2 for common temperature relief valve outlet sizes
Valve
Outlet
size
Minimum Size of
Discharge Pipe D1
Minimum Size of
Discharge Pipe D2
from tundish
Maximum resistant allowed,
expressed as a length of
straight pipe (ie. no elbows or
bends)
Resistance
created by each
elbow or bend
G 1/2 15mm 22mm
28mm
35mm
Up to 9m
Up to 18m
Up to 27m
0.8m
1.0m
1.4m
G 3 /4 22mm 28mm
35mm
42mm
Up to 9m
Up to 18m
Up to 27m
1.0m
1.4m
1.7m

- 15 -
INSTALLATION
When the system installed is "Unvented" it is
necessary to fit the "unvented kit" on the cold
water supply. The "Unvented kit" contains
pressure reducing valve, non-return valve,
pressure relief valve and optional use balanced
cold water connector. It is good practice to fit
the "unvented kit" above the top level of the
EBS-1 tank. In this way if it is required to replace
the "unvented kit" it is not necessary to drain all
tank. Please find below how to install the
"unvented kit"
6.3.1 - ¾" Unvented kit for EBS-1 cylinders
6.3.2 - ¾" Unvented kit for EBS-1 cylinders
6.3 - Hydraulic connections for cylinders
1) Unvented kit
2) Safety zone valve
3) Expansion vessel
4) Expansion vessel connection
5) Tundish
1
2
3
4
5
47
6
8
9
12
11
10
4) Expansion vessel connection
6) Cold water
7) Cold water to EBS-1 tank
8) To drain valve
9) Balanced cold water
10)Discharge
11)Pressure relief valve
12)Pressure reducing valve

- 16 -
INSTALLATION
6.3.3 - 1" Unvented kit for EBS-1 cylinders 6.3.4 - 1" Unvented kit for EBS-1 cylinders
1) Unvented kit
2) Safety zone valve
3) Expansion vessel
4) Expansion vessel connection
5) Tundish
1
2
3
4
5
4
7
6
9
12
11
10
4) Expansion vessel connection
6) Cold water
7) Cold water to EBS-1 tank
8) /
9) Balanced cold water
10)Discharge
11)Pressure relief valve
12)Pressure reducing valve

- 17 -
INSTALLATION
A
B
C
D
E
F
1
2
18
17
5
3
916
EBS-16-3E
419
500mm
maximum
300 mm
minimum
Fig. 7 This drawing has to be read in conjunction
with the full installation manuals supplied
!
1) Primary inlet
2) Domestic hot water supply outlet
3) Domestic hot water return
4) Primary outlet
5) Mains cold water supply inlet via unvented kit
9) Domestic hot water temperature setting
thermostat
16)Pressure and temperature relief valve
17)High limit cut off thermostat
18)P&T valve drain
19)Safety zone valve
A) Safety device (e.g. temperature relief valve)
B) Metal discharge pipe (D1) from temperature
relief valve to tundish
C) Metal discharge pipe (D2) from tundish with
continuous fall. see table section 6.2.1 - page 12
for sizes
D) Fixed grating
E) Trapped gulley
F) Tundish

- 18 -
INSTALLATION
1
2
3
4
5
6
7
8
9
EBS-17-3E
300 mm minimum
from tundish to bend (Building Regulations requirements)
300mmbetw
e
e
n
p
i
p
e
c
l
i
p
s
200 mm minimum
height above HepvO Valve
Fig. 8 This drawing has to be read in conjunction
with the full installation manuals supplied
!
Note :
- This detail is only to be used where there is no other alternative. It is strictly subject to local.
Dispensation and approval must be sought from NHBC and Building Control inspector prior to
installation.
1) 22 mm copper discharge pipe
2) Tundish - visible point off discharge
3) 28 mm copper discharge pipe
4) 32 mm HepvO valve
5) HepvOvalvemustbeverticalandadjacenttothe
water unit, to be visible & easily accessible.
6) 32 mm poplypropylene waste pipe
7) Pipe clip to be positioned close to valve to
provide additional support
8) Waste typically discharged to soil stack through
boss adapter
9) Soil stack

- 19 -
INSTALLATION
- Piping thermal insulation:
Tolimitheatloss to a minimum, insulate the boiler
linktubesand the tank's domestic hot wateroutlet
tube.
If domestic hot water recycling is connected, you
must thermally insulate the domestic hot water
recycling pipes.
- Access flap access:
Leave enough room above the tank to enable
access to the stainless steel tank access flap
(scaling check) - (refer to section 1 - page 24 -
chapter VI - MAINTENANCE)
6.4 - Accessories to connect, install or
adjust
6.5 - Hydraulic diagram
5
3
8
9
10
7
1
2
3
4
14
1
2
6
5
12
11
EBS-08-3E
13
4
16
15
Fig. 9
1) Primary inlet (boiler to tank)
2) Domestic hot water outlet
3) Domestic hot water recycling
4) Primary outlet (tank to boiler)
5) Domestic cold water inlet
6) Domestic hot water production system
(EBS-1)
7) Domestic hot water recycling pump*
8) Safety control box*
9) Safety control box evacuation
10)Evacuation to drains
11)Pressure reducer*
12)Domestic hot water expansion vessel
13)Anti-return flap (provided with the
hydraulic connection kit)
14)Domestic hot water load pump
15)P&T valve drain
16)P&T valve
* accessories not provided

- 20 -
INSTALLATION
7 - ELECTRICAL CONNECTION
- The electrical connection and all the equipment
used to make this connection must be in
conformity with the codes of practise in force
(according to the installation standards),
- the place where the electricity connection is
installed must be suitable for the domestic hot
water production system's level of protection
IP20,
- Power supply: 230 V - 50 Hz (single phase),
- Earth connection compulsory.
- the electricity supply must contain a circuit
breaker, preferably bipolar, with a 6 A trip switch
or fuse.
- Respect the Live-Neutral polarities,
7.1.1 - Boiler with domestic hot water load
pump
The thermostat (9, fig. 10) starts up the load pump
that supplies the tank's exchanger when there is a
request for domestic hot water.
- Connect the domestic hot water load pump as
indicated in fig. 10.
7.1 - EBS-1 electrical diagram
TRS
TSE PCS
SSoZV
Legend :
b : white
bl : blue
g : grey
m : brown
n : black
r : red
v/j : green/yellow
Fig. 10
TRS : Domestic hot water temperature setting thermostat
TSE : Water overheating safety thermostat (90°C)
PCS : Domestic hot water pump
SSoZV : Safety shut off zone valve