ACV Smart line SLE W 100 User guide

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Installation, Operating and
Servicing Instructions
SL 100 / 130 / 160 / 210 / 240
SLE W 100 / 130 / 160 / 210 / 240

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WARNING 3
Who should read these instructions 3
Symbols 3
Recommendations 3
Applicable standards 3
Warnings 3
Packing 3
INTRODUCTION 4
Description of function 4
Description of operation 4
TECHNICAL CHARACTERISTICS 5
Operating condition 5
Wiring diagram 5
INSTALLATION INSTRUCTIONS 6
Dimensions 6
Installation 6
CONNECTING THE TANK 7
Central heating connections 7
Domestic hot water connection 8
COMMISSIONING 9
Filling the tank 9
What to check start-up? 9
Setting the thermostat 9
MAINTENANCE 10
Periodical checks by the user 10
Annual service 10
Emptying 10
Replacement of the electric heating element of the SLE W 11
Fault finding 12
SPARE PARTS See at the end of this manual
INDEX

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WHO SHOULD READ THESE INSTRUCTIONS
These instructions should be read by:
- the specifying engineer
- the installer
- the user
- the service engineer
SYMBOLS
The following symbols are used in this manual:
• It is important to switch the tank OFF before carrying out
any work.
• There are no user accessible parts inside the tank casing.
APPLICABLE STANDARDS
The appliances carry the CE mark in accordance with the
standards in force in the various countries.
WARNINGS
This documentation is part of the information delivered with the
appliance and must be given to the user and stored in a safe
place!
An approved installer must carry out the assembly, commissioning,
maintenance and repair of the system, in accordance with current
standards in force.
ACV shall not accept any responsibility for damage caused by non-
compliant location of the system or by use of the parts or
connections not approved by ACV for this application.
The manufacturer reserves the right to change the
technical characteristics and specification of its
products without notice.
The availability of some versions and their accessories is
market dependant.
PACKING
Units are shipped ready to install, tested and packaged in a
carboard box.
Contents of the package
• One hot water tank.
• One multilingual technical instruction manual.
• One wall-mounting kit with support and one flow diverter.
WARNINGS
RECOMMENDATIONS
• Please, read carefully this manual before installing and
commissioning the tank.
• It is prohibited to carry out any modifications to the inside of
the appliance without the manufacturer’s prior and written
agreement.
• The product must be installed and serviced by trained
engineers, in compliance with current standards.
• The installation must comply with the instructions in this
manual and with the codes and standards governing systems
for the production of hot water.
• Any failure to follow instructions relating to tests and test
procedures may result in personal injury or risks of pollution.
• To guarantee safe and correct operation of the appliance, it
is important to have it serviced and maintained every year by
an approved installer or maintenance company.
• In case of anomaly, please call your service engineer.
• The parts may only be replaced by genuine factory parts. You
will find a list of the spare parts and their reference number
ACV to the end of this document.
Danger of burns
Essential instruction for
the safety of persons
and the environment.
Danger of electrocution.
Essential instruction for
the correct operation of
the installation.

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Losses when shut down in Watt
Models
Losses when
shut down
[Watt]
SL 100 / SLE W 100 ΔT = 50°C 77,7
SL 130 / SLE W 130 ΔT = 50°C 79,8
SL 160 / SLE W 160 ΔT = 50°C 82,2
SL 210 / SLE W 210 ΔT = 50°C 85,6
SL 240 / SLE W 240 ΔT = 50°C 88,8
Temperature losses with ambient T° of 20°C
1. A u x i l i a r y c o nn e c t i o n D H W
2. Cold water inlet connection
3. Control thermostat
4. Flow connection (primary circuit)
5. Polyurethane foam insulation
6. Return connection (primary circuit)
7. Outer steel tank (primary circuit)
8. Manual air purge
9. Hot water connection
10. Polypropylene top lid
11. Stainless steel tank (DHW)
12. Polypropylene shell
13. Polypropylene bottom lid
14. Control panel
15. Electric heating element 2200 W
16. D r y w ell
1 8
2
3
4
713
9
10
11
12
6
5
8
2
14 9
7
11
1
15
16
6
10
5
13
12
4
DESCRIPTION OF FUNCTION
“Tank-in-Tank” system
“Tank-in-Tank” is a heat exchanger with a built-in accumulator, made
up of two concentric tanks: the inner tank contains domestic water
to be reheated (secondary) and the outer tank contains the heating
fluid (primary) which circulates between the two tanks and transfers
its heat to the domestic water.
Domestic Hot Water cylinder
The inner tank is the heart of the tank: it is subject to the
aggressiveness of the supply water, to high pressures and to
variations in temperature. This tank is made of solid chrome-
nickel stainless steel (stainless steel 304 or duplex), fully welded
under argon protection using the Tungsten Inert Gas (T.I.G.)
technique.
Before assembly, the convex bottoms are pickled and passivated in
order to improve the tank’s lifespan and in particular its resistance to
corrosion. The shell is corrugated all the way up using an exclusive
manufacturing process. This design gives considerable resistance to
pressure and limits the adherence of lime scale by allowing the tank
to expand and contract.
Outer tank
The outer tank containing water from the primary circuit arriving
from the boiler, is made of carbon steel STW 22.
Thermal Insulation
This is carried out using high density injected polyurethane
foam, 50 mm containing no CFCs.
Lining
The tank is covered using polypropylene, a plastic material
which offers a high resistance to shocks and which is also very
pleasing to the eye.
Electric heating element in SLE W
The SLE W tank is equipped with one 2200 W heating element
controlled by the thermostat and by the Summer/Winter
switch of the SLE W.
INTRODUCTION
DESCRIPTION OF OPERATION
Operating cycle
The thermostat is triggered and starts up the pump which circulates
the heating water. This water circulates around the inside tank and
heats up the domestic water. When the required temperature is
reached, the thermostat stops the primary circulating pump.
OFF Reheating Running Storing
Cold Water
Heating fluid
Domestic hot water

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TECHNICAL CHARACTERISTICS
Tank characteristics SL
100
SL
130
SL
160
SL
210
SL
240
SLE W
100
SLE W
130
SLE W
160
SLE W
210
SLE W
240
Total capacity L 105 130 161 203 242 105 130 161 203 242
Primary capacity L 30 31 35 39 42 30 31 35 39 42
Primary fluid flow rate L/h 2100 2600 3500 4200 5500 2100 2600 3500 4200 5500
Primary pressure drop mbar 17 22 37 45 51 17 22 37 45 51
Heating surface m21,03 1,26 1,54 1,94 2,29 1,03 1,26 1,54 1,94 2,29
Tank performances SL 100
SL
130
SL
160
SL
210
SL
240
SLE W
100
SLE W
130
SLE W
160
SLE W
210
SLE W
240
Peak flow at 40°C L/10’ 236 321 406 547 700 236 321 406 547 700
Peak flow at 60°C L/10’ 117 161 209 272 337 117 161 209 272 337
Peak flow at 40°C L/60’ 784 1063 1349 1820 2319 784 1063 1349 1820 2319
Peak flow at 60°C L/60’ 384 549 689 913 1165 384 549 689 913 1165
Constant flow at 40°C L/h 658 890 1132 1527 1943 658 890 1132 1527 1943
Constant flow at 60°C L/h 320 465 576 769 994 320 465 576 769 994
Pre-heating time minutes 24 22 22 20 20 24 22 22 20 20
Powerdrawn kW23313953682331395368
Heating time with the 2,2 kW
heating element, from 10 to
60°C
— — — — — 2 h 43’ 3 h 27’ 4 h 20’ 5 h 37’ 6 h 37’
Running conditions: 85°C Water intake T°: 10°C
OPERATING CONDITION
Maximum service pressure [tank filled with water]
- Heating circuit: 3 bar
- DHW circuit: 10 bar
Test pressure [tank filled with water]
- Heating circuit: 4,5 bar
- DHW circuit: 13 bar
Operating temperature
- Maximum temperature: 90°C
Water quality
• Chlorides: < 150 mg/L [304 Stainless steel]
< 2000 mg/L [Duplex]
• 6 ≤ph ≤8
1
7
Br
Y/Gr
B
Br
B
Br
Y/Gr
BB
B
G
T2S3 T1 NL1
T2 S3T1NL1
SLE W
6
BBk
t
c
1
2
t
2
3
5
4
B
BB
G
G
W
Or
Bk
WIRING DIAGRAM
c1
2SL
Br
Y/Gr
B
OrOr
Y/Gr
Bk
Bk
7
NL1
L1 N
t
2
B. Blue
Bk. Black
Br. Brown
G. Grey
Or. Orange
W. W hi t e
Y/ G r. Ye l l o w/ G r e e n
1. 230 Volt connection cord
2. Control thermostat [60/90°C]
3. Manual reset high limit thermostat [103°C max.]
4. Summer / Winter switch
5. Fuse 10 Amp
6. Electric heating element
7. L o a d p u m p [ i n o p t i o n ]
8. Heating-element-on indicator
4
8
5
2
Summer Winter

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INSTALLATION INSTRUCTIONS
DIMENSIONS SL 100
SL
130
SL
160
SL
210
SL
240
SLE W
100
SLE W
130
SLE W
160
SLE W
210
SLE W
240
A mm 865 1025 1225 1497 1744 865 1025 1225 1497 1744
B mm 629 789 989 1261 1508 629 789 989 1261 1508
C mm 365 525 725 997 1244 365 525 725 997 1244
Weight empty [kg] 49 55 65 75 87 49 55 65 75 87
INSTALLATION
This hot water tank should not be installed where it will be exposed
to outside weather conditions.
Choose the most appropriate location according to the position of
the boiler and the proximity of the domestic hot water distribution
system, in order to reduce heat losses and minimise the pressure
drops.
It may be installed either on the floor or on a wall using the
fixtures supplied, depending of the model.
The SLE W models must be assembled with the heating
element to the bottom (DHW pipes to the bottom or to
the right).
In horizontal configuration, the peak output and the
first hour continuous output will be reduced. In this
case, we recommend to oversize the tank.
Vertical wall hung
position:
Domestic water
connection bottom
side.
1. Mount the tank
on the wall, using the
supplied brackets
2. Install the flow
diverter into the
cold-water connection
(see diagram).
Horizontal wall hung
position:
Only for SLE W units
the domestic water
connections must be
on the right side
1. Mount the tank on
the wall, using the
supplied brackets
2. Connect the cold
water inlet to the
tube with the long
PVCC dip tube
(see diagram).
3. This configuration
does not require the
plastic flow diverter
Floor mounting :
Only for SL units.
1. Connect the cold
water inlet to the
tube with the long
PVCC dip tube
(see diagram).
2. This configuration
does not require the
plastic flow diverter
AB
264
C
360
325
295
145
565
A
B
264
C
565
360
325
295
145
SL SLE W
SL SLE W
SL SLE W
SLE W
SLE W
SL

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CONNECTING THE TANK
CENTRAL HEATING CONNECTIONS
PIPE DIMENSIONS
Models Ø connection (female)
SL 100 / 130 / 160 1”
SL 210 / 240 1”1/4
SLE W 100 / 130 / 160 / 210 / 240 1”1/4
1. System filling valve
2. Safety valve calibrated to 3 bar
3. Expansion vessel
4. Drain cock
5. Isolation valve, heating system
6. Room thermostat
7. Optional boiler control [BC 01 or BC 03]
8. Boiler pump
9. Heating pump
10. 3-ways motorized mixing valve
5
5
5 5
1
89
4
2
3
6
7
Single tank with primary pump.
Floor mounted tank.
(SL only)
5
5 5
1
89
4
2
3
6
7
5
Single tank with primary pump.
Horizontally mounted wall hung tank.
(Only for the SLE W)
5
5
5 5
1
8
10
4
2
3
6
7
Single tank with three ways
motorized mixing valve.
Vertically mounted wall hung tank.
SLE W tank used
as electic domestic
hot water heater only
5
1
2
3
This connection
to be plugged.
Do not power the heating element ij the
oustide tank is not filled and drained.

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2
7
5
1
1
4
10
6
1
3
911
3 3 1
8
2
7
5
6
11
4
8
10
1
39
1 1
33
1
CONNECTING THE TANK
DOMESTIC HOT WATER CONNECTIONS
PIPE DIMENSIONS
Models Cold / hot water
connections Auxiliary connexion
SL / SLE W 100 L Ø 3/4” [M] Ø 3/4” [F]
SL / SLE W 130 L Ø 3/4” [M] Ø 3/4” [F]
SL / SLE W 160 L Ø 3/4” [M] Ø 3/4” [F]
SL / SLE W 210 L Ø 3/4” [M] Ø 3/4” [F]
SL / SLE W 240 L Ø 3/4” [M] Ø 3/4” [F]
1. I s o l a t i n g v a l v e
2. Pressure reducer
3. Non-return valve
4. Expansion tank
5. Safety valve
6. Drain cock
7. A i r v e n t
8. Thermostatic mixing valve
9. Circulation pump
10. Drawoff point
The installation of a domestic safety unit is compulsory.
In order to avoid water dropping on the tank, the
domestic safety unit should not be placed directely
above the tank.
The third domestic water outlet can be used as a
return from the domestic hot water circulation loop.
Mains water kits could be in some countries due to
approval regulations.
Recommendations
• The pipe feeding the tank with cold water must be fitted
with a safety unit comprising at least the following:
- An isolating valve [1]
- a non-return valve [3]
- a safety valve [5]: (set to < 10 bar)
- a sanitary expansion vessel of appropriate dimensions.
• When the operating pressure exceeds 6 bar a pressure
reducer [2] must be installed before the safety unit.
• Union fittings are recommended for easy removal of the
connections. Ideally the “dielectric” version is preferable
in order to protect the connections against corrosion in
the presence of dissimilar metals such as copper and
galvanised steel.
• The installation of an expansion vessel avoids safety valve
runoff (loss of water).
• Domestic hot water expansion vessel capacity:
5 Litres: for the following models: 100
8 Litres: for the following models: 130 / 160
12 Litres: for the following models: 210 / 240
Please see the technical instruction manual of the
expansion vessel’s manufacturer for further details.
Domestic hot water kit
A. Thermostatic mixing valve
B. Mixed water outlet
C. Cold water inlet
D. Drainage connection
E. Expansion vessel connection
S. Safety unit
TH. Outlet hot water tank
TC. Inlet cold water tank
Wall mounting
A
BEC
S
D
TCTH
Floor mounting
A
BE
C
TCTH
S
D
Floor
mounting
Wall
mounting

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Central heating tank
1. Close the drain cock [4] on the tank’s primary circuit.
2. Open the isolation valves [5] on the central heating circuit
connected to the boiler.
3. Bleed the air in the circuit by opening the air vent located on
the upper part of the tank.
4. Follow the instructions supplied with the boiler for filling.
5. When the tank is full and the air has been removed, the
bleed valve should be closed.
Ensure that the bleed valve is properly sealed.
6. If any antifreeze is needed in the primary circuit it mus be
compatible with Public hygiene rules and not be toxic.
A food-type Propylene Glycol is recommended.
Consult the manufacturer to ensure that the antifreeze is
compatible with the tank’s construction materials.
Never use car antifreeze or undiluted antifreeze.
This can cause serious injury, death or damage to the
premises.
COMMISSIONING
Before pressurising the central heating tank (primary)
you should first pressurise the domestic hot water
tank (secondary).
Both the domestic hot water tank and the central
heating tank must be filled before using the tank.
FILLING THE TANK
Domestic hot water tank
1. Close the drain cock [6] of the DHW circuit.
2. Open the isolating valve [1] of the DHW circuit for the filling.
3. Bleed the air in the circuit by turning on a nearby hot water
tap [10] Fill the tank until the flow rate stabilises.
4. Turn off the hot water tap [10].
WHAT TO CHECK START-UP?
• Safety valves (domestic hot water) and (central heating)
correctly installed and discharge connected to the drains.
• Domestic hot water tank and primary circuit filled with
water.
• Air bleed correctly carried out on both circuits.
• Air valve sealed.
• Both hot and cold water pipes correctly connected to the
tank’s hot water circuit.
• Heating feed and return correctly connected to the tank.
• The electrical cabling is correct.
• The tank’s thermostat is set according to the instructions
shown in § “Setting the thermostat”.
• Connections checked and free of leaks.
SETTING THE THERMOSTAT
Factory settings
The thermostat of the tank is factory preset to the minimum
recommended by the standards, over a range of settings from
60 to 90°C.
To increase the temperature: turn the button clockwise.
To reduce the temperature: turn the button anticlockwise.
When adjusting the tank’s thermostat, make sure that the
boiler temperature is set to a value at last 10°C higher than
tank’s thermostat.
Recommendations
There is a risk that bacteria including “Legionella
pneumophila” may develop if a minimum temperature
of 60°C is not maintained both in storage and in the
hot water distribution network.
There is a risk of scalding from hot water!
ACV recommends the use of a thermostatic mixing
valve set to provide water at 60 °C or less.
• The water heated to wash clothes, dishes and for other
purposes can burn and cause serious injury.
• Children, the elderly, the sick or the disabled are the most at
risk from burns due to very hot water. Never leave them on
their own in a bath or under the shower. Never allow young
children to turn on hot water taps or fill their own baths.
• Set the water temperature appropriately according to the
intended use and plumbing codes.
When repeatedly drawing small amounts of hot water,
a “stratification” effect may develop in the tank.
The upper layer of hot water may then reach very high
temperatures. A thermostatic mixing valve will stop
water at excessivly high temperatures reaching the
outlets.
2
7
5
1
1
4
10
6
1
3
911
3 3 1
8
5
5
5 5
1
8
10
4
2
3
6
7

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MAINTENANCE
PERIODICAL CHECKS BY THE USER
• Check the pressure of the boiler’s pressure gauge: it should
be between 0.5 and 1.5 bar.
• Carry out a monthly visual inspection of the valves,
connections and accessories in order to detect any leaks
or malfunctions.
• Periodically check the air valve located on the upper part of
the tank to make sure that it is not leaking.
• If you notice anything unusual, contact a technician or your
heating engineer.
ANNUAL SERVICE
The annual service, carried out by a technician, must include
the following:
• Checking the air valve:
The air bleed can lead to water being added to the system.
Check the pressure on the boiler’s pressure gauge.
• Manually activate the domestic hot water safety valve once
a year. This operation will lead to a discharge of hot water.
Before drawing any hot water through the safety unit,
make sure that the discharge goes directly to the drain
in order to avoid any risk of burning or damage.
• The discharge pipe should be open to the atmosphere.
• If the safety unit occasionally “drips” this may be due to an
expansion problem or to clogging of the valve.
• Follow the circulator’s maintenance instructions.
• Check that the valves, cocks, controllers and any electrical
accessories installed are working properly (see the
manufacturer’s instructions if necessary).
EMPTYING
Recommendations
Empty the tank if it is to be switched off for the winter
and there is a risk of frost conditions exposure.
If the central heating water (primary circuit) contains
any antifreeze, only the domestic hot water should be
drained.
Before draining off the domestic hot water, insulate
the tank to bring the central heating pressure (primary
circuit) down to 1 bar, in order to protect the tank
against a risk of collapsing.
If the central heating circuit does not contain any anti-
freeze, both the central heating and hot water circuits
should be drained.
Domestic hot water tank
To empty the domestic hot water tank:
1. Switch off the electrical power supply to the tank.
2. Close the isolation valve [1].
3. Open the drain cock [6] and the air vent [7].
4. Allow the water to flow out into the drain.
5. After emptying, return the valves to their initial positions.
In order to allow emptying the valve [6]must be located
at the lowest point on the tank.
2
7
5
1
1
4
10
6
1
3
911
3 3 1
8
Central heating tank
To empty off the primary circuit:
1. Switch off the electrical power supply to the tank.
2. Connect a hose to the drain valve [4].
3. Open the drain valve [4] and drain the hot water off.
4. To speed up the process, open the air vent located on the
upper part of the tank.
5. When the emptying is finished, close the drain cock again
then screw the air valve up again.
5
5
5 5
1
8
10
4
2
3
6
7

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MAINTENANCE
REPLACEMENT OF THE ELECTRIC HEATING
ELEMENT FOR THE SLE W
• Switch off and disconnect the mains power supply to the
appliance.
• Be careful with the high temperature of the cylinder.
• Drain the primary tank.
BE CAREFUL!
Risk of scalding while emptying the tank.
Demounting of the heating element
1
2
3
4

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MAINTENANCE
SL SLE W
1Check the power supply.
2Check the proper operation of the boiler and the control thermostat of the tank.
3Check if the loading pump works properly and replace if necessary.
4Check the fuse and replace if necessary.
5Check the safety thermostat on the tank and reset if necessary.
6Check the heating element and replace if necessary.
Fault finding
What to do if the DHW-water is not heated anymore?
1. C o nt r ol th er m os t a t [6 0/90 °C ]
2. Heating-element-on indicator
3. Summer/Winter switch
4. Fuse 10 Amp
5. Manual reset high limit thermostat [103°C max.]
6. Electric heating element
3
2
4
1
5
6

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661Y0600.C
N° SL
100
SL
130
SL
160
SL
210
SL
240
A01 497B5010 497B5010 497B5010 497B5010 497B5010
A02 39438023 39438027 39438039 39438046 39438047
A03 497B0003 497B0005 497B0007 497B0009 497B0010
A04 497B5002 497B5002 497B5002 497B5002 497B5002
SL
A04
A03
A02
A01

661Y0600.C
SLE W
N° SLE W
100
SLE W
130
SLE W
160
SLE W
210
SLE W
240
B01 497B5002 497B5002 497B5002 497B5002 497B5002
B02 497B0003 497B0005 497B0007 497B0009 497B0010
B03 39438023 39438027 39438039 39438046 39438047
B04 5476D001 5476D001 5476D001 5476D001 5476D001
B05 497B5011 497B5011 497B5011 497B5011 497B5011
B01
B02
B03
B04
B05

661Y0600.C
SL SLE W
55445006 55445006
49410036 49410036
54442045 54442045
54764021 54764021
24614154
54428107
54766018
5476C004
54764010
24614161
55412023