ACV HR i 320 Manual

EN
A1002237 - 661Y1300 • B
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS,
for the User and the Installer
320 - 600 - 800
HR i

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EN TABLE OF CONTENTS
GENERAL RECOMMENDATIONS..............................................................3
PRODUCT INFORMATION........................................................................4
Energy Labelling ..................................................................................................................................................... 4
Rating Plate.................................................................................................................................................................. 5
USER'S GUIDE.............................................................................................6
Control Panel.............................................................................................................................................................. 6
APPLIANCE DESCRIPTION........................................................................7
Models - HR i 320 – 600 - 800 ................................................................................................................................. 7
TECHNICAL CHARACTERISTICS..............................................................8
Dimensions.................................................................................................................................................................. 8
Electrical Characteristics.................................................................................................................................10
Hydraulic Characteristics................................................................................................................................10
Performances...........................................................................................................................................................11
INSTALLATION ........................................................................................12
Packing Contents..................................................................................................................................................12
Tools ................................................................................................................................................................................12
INSTALLATION ........................................................................................13
Safety instructions...............................................................................................................................................13
Connection................................................................................................................................................................15
Parallel Tank Assembly.....................................................................................................................................17
STARTING UP ...........................................................................................18
Safety Instructions to Fill the Tank .........................................................................................................18
Filling ..............................................................................................................................................................................19
Checks before Starting up ............................................................................................................................21
MAINTENANCE........................................................................................22
Periodic Checks by the User........................................................................................................................22
Annual Maintenance..........................................................................................................................................22
Draining........................................................................................................................................................................22
Bringing back into Service after Maintenance.............................................................................24

We accept no liability should any damage result from the failure to comply with theinstruc-
tions contained in this technical manual.
Essential recommendations for safety
• It is strictly prohibited to carry out any modifications to the appliance without the
manufacturer’s prior and written agreement.
• The product must be installed by a qualified engineer, in accordance with
applicable local standards and regulations.
• The installation must comply with the instructions contained in this manual and
with the standards and regulations applicable to domestic hot water tanks.
• Failure to comply with the instructions in this manual could result in personal
injury or a risk of environmental pollution.
• The manufacturer declines all liability for any damage caused as a result of
incorrect installation or in the event of the use of appliances or accessories that are
not specified by the manufacturer.
Essential recommendations for the correct operation of the appliance
• In order to ensure that the appliance operates correctly, it is essential to have it
serviced by a certified installer or maintenance contractor every year.
• In case of anomaly, please call your installer for advice.
• Faulty parts may only be replaced by genuine parts.
• Our water heaters are designed and manufactured for the exclusive purpose of
heating and storing domestic hot water.
• The domestic hot water heaters must only be heated using hot water in a closed
circuit.
General remarks
• The availability of certain models as well as their accessories may vary according to
markets.
• The manufacturer reserves the right to change the technical characteristics and
features of its products without prior notice.
• The part number (P/N) and serial number (S/N) of the appliance are indicated on its
rating plate and must be provided to ACV in case of warranty claim. Failure to do
so will make the claim void.
•
In spite of the strict quality standards that ACV applies to its appliances during
production, inspection and transport, faults may occur. Please immediately notify
your approved installer of any faults.
NOTES
This manual contains important information with respect to the installation, the starting up and
the maintenance of the appliance.
This manual must be provided to the user, who will read it carefully and keep it in a safe place.
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GENERAL RECOMMENDATIONS

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PRODUCT INFORMATION
ENERGY LABELLING

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PRODUCT INFORMATION
RATING PLATE

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USER'S GUIDE
Legend:
1. Thermometer: indicates the domestic hot water (DHW) temperature in the tank.
2. Adjusting knob : allows to dene the DHW preset temperature. It rotates 1/4 turn clockwise to
set the temperature between 60°C and 90°C.
CONTROL PANEL
Wiring Diagram
B. Blue
Br. Brown
Bk. Black
Or. Orange
Y/Gr. Yellow / Green
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Br
Y/Gr
B
OrOr
Y/Gr
Bk
Bk
N L1
L1 N
tN
PE
L

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APPLIANCE DESCRIPTION
Legend
1. Control panel
2. Manual air bleed valve
3. Primary circuit inlet
4. Metal casing
5. Inner stainless steel tank (not shown)
6. Outer steel tank (primary)
7. 60mm rock wool insulation (not shown)
8. Hand hole
9. Cold drink water inlet
10. Drain valve
11. Auxiliary DHW loop
12. DHW outlet
13. Primary circuit outlet
14. Stainless steel dry-well (not shown)
MODELS  HR i 320 – 600 - 800
Indirectly heated storage water tanks, to be installed on the oor, equipped with a large surface
heat exchanger and intended for medium and high power installations. Through the use
of a specic kit, these tanks can be set in parallel, allowing the construction of high ow rate
assemblies for any type of commercial, residential or industrial facilities.
HR i 320 - 600 - 800
Front view Rear view, without casing
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TECHNICAL CHARACTERISTICS
DIMENSIONS
Tank dimensions HR i
320 600 800
A= Height mm 1820 2120 2100
B= Width mm 630 780 900
C= Depth mm 662 815 930
Dmm 630 780 900
Emm 511 485 510
Fmm 1541 1183 1760
Gmm 176 146 145
Empty weight Kg 152 273 343
A
B
D
C
E
F
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ENTECHNICAL CHARACTERISTICS
Tank clearance HR i
320 600 800
A(mm) Recommended 1000 1000 1000
Minimum 750 750 750
B(mm) Recommended 1000 1000 1000
Minimum 800 800 800
C(mm) Recommended 300 330 330
Minimum 200 230 230
A
C
B

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EN TECHNICAL CHARACTERISTICS
HYDRAULIC CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
Main characteristics HR i
320 600 800
Rated voltage V~ 230/240 230/240 230/240
Rated frequency Hz 50 50 50
Max. power kW 1.3 1.3 1.3
Max. amp. rating (fuse) A 666
Main characteristics HRi
320 600 800
Total capacity L 318 606 800
Primary circuit capacity L 55 161 125
DHW capacity L 263 445 675
Primary circuit connection [F] " 222
DHW connection [M] " 1 1/2 1 1/2 1 1/2
Auxiliary DHW loop connection [M] " 3/4 3/4 3/4
Primary pressure drop* mbar ———
Heating surface area* m² 2.65 3.58 4.56
Max Design Pressure* bar 10 10 10
Reheat Performance - Primary Heating
Power Input* kW 60 71 82
Primary ow rate (to achieve Reheat
Performance)* L/s 1.81 2.08 2.08
Standing Heat Loss* kWh/24h 2.98 3.67 4.06
W124 153 169
* According to EN12897:2006

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ENTECHNICAL CHARACTERISTICS
PERFORMANCES
DHW performance HR i
Operating conditions at 80°C 320 600 800
Peak ow at 40 °C L/10' 922 1345 1881
Peak ow at 45 °C L/10' 790 1153 1612
Peak ow at 60 °C L/10' 504 706 961
Peak ow at 40 °C L/60' 2732 3437 4270
Peak ow at 45 °C L/60' 2342 2946 3660
Peak ow at 60 °C L/60' 1402 1733 2124
Constant ow at 40 °C L/h 2172 2511 2868
Constant ow at 45 °C L/h 1862 2152 2458
Constant ow at 60 °C L/h 1077 1232 1395
Coecient NL 18 34 67
Maximum Operating Conditions
HRi
320 600 800
Max. operating pressure - primary bar 444
Max. operating pressure - DHW bar 8.6 8.6 8.6
Supply pressure (DHW circuit) bar 666
Maximum temperature - heating side °C 90 90 90
Maximum temperature - DHW side °C 80 80 80
Water quality
- Chlorides < 150 mg/L
- 6 ≤ pH ≤ 8
- If hardness > 20°fH, water softener recommended.

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INSTALLATION
PACKING CONTENTS
Appliances are delivered assembled, tested and packaged separately.
Contents
• A fully-assembled tank, ready for use.
• A multilingual Installation, Operation and Maintenance Instruction manual.
TOOLS




SAFETY INSTRUCTIONS
General remarks
• Connections (electrical, hydraulic) must be carried out in accordance with
applicable standards and regulations.
• If the water drawing off point is far from the tank, installing an auxiliary DHW loop
can allow to get hot water more quickly at all times.
Essential instructions forthecorrect operation ofthesystem
• The tank must be installed in a dry and protected area.
• Install the appliance to ensure easy access at all times.
• To avoid any risk of corrosion, connect the stainless steel tank directly to the earth.
• Make sure to install a pressure reducing valve set at 4.5 bar in the DHW circuit if the
supply pressure is higher than 6 bar.
• On the DHW circuit, install an approved safety group, comprised of a safety valve
set at 7 bar, a check valve and a stop valve.
• Make sure that the outlet of the safety unit goes directly to the sewer to avoid any
potential damage.
• Do not install the safety group above the tank to avoid water discharge on to the
tank.
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ENINSTALLATION
INSTALLATION

Essential instructions forthe safety of persons and the environment
• Hot water can burn!
In the event of small amounts of hot water repeatedly being drawn off, a
stratification effect can develop in the tank. The upper hot water layer may then
reach very high temperatures.
• ACV recommends using apre-set thermostatic mixing valve in order to provide
hot water at a maximum of 60°C.
• Water heated to wash clothes, dishes and for other uses can cause serious burns.
• In order to avoid exposure to extremely hot water that can cause serious burns,
never leave children, old people, disabled or handicapped people in the bath
orshower alone.
• Never allow young children to turn on the hot water or fill their own bath.
• Adjust the water temperature in accordance with usage and plumbing regulations.
•
The risk of developing bacteria exists, including “Legionella pneumophila”,
ifaminimum temperature of 60°C is not maintained in both the DHW tank andthe
hot water distribution network.
Essential instructions for the electrical safety
• Only an approved installer is authorized to carry out the electrical connections.
• Install a 2-way switch and a fuse or circuit breaker of the recommended rating
outside the appliance, so as to be able to shut power down when servicing the
appliance or before performing any operation on it.
• Shut down external electrical supply of the appliance before performing any
operation on the electrical circuit.
• This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge,
unless supervised or unless they have been given instruction concerning the use
of the appliance by a person responsible for their safety.
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EN INSTALLATION

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ENINSTALLATION
CONNECTION
Essential instructions forthe safety of persons and the environment
• Refer to the safety instructions for the installation. Failure to comply with these
instructions can result in damages to the installation, severe injuries or death.
• Hot water can burn! ACV recommends using a pre-set thermostatic mixing valve in
order to provide hot water at a maximum of 60°C.
Essential instructions forthecorrect operation oftheinstallation
• The filling circuit of the DHW tank must be equipped with a safety group, comprised
at least of a stop valve, a check valve, a safety valve set at 7 bar, and possibly, an
expansion vessel of the appropriate size. Make sure that the circuit between the
tank and the safety valve is always open.
• The third DHW tank connection, if any, can be used for the auxiliary DHW loop. If the
connection is not used, replace the protective plug by a brass plug of the appropriate size.
General remarks
• In certain countries the domestic kits must be approved.
• The circuit illustrations are basic principle diagrams only.

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EN INSTALLATION
CONNECTION TO THE DHW CIRCUIT
Legend
1. Filling valve
2. Pressure reducing valve (set at 4.5 bar)
3. Check valve
4. Expansion vessel
5. Safety valve (set at 7 bar)
6. Drain valve
7. Drawing-off tap
8. Pressure gauge
9. Grounding
10. Stop valve
11. Auxiliary DHW loop circulation pump
12. Thermostatic mixing valve
If there is a risk of low pressure in the hot water circuit (installation of the tank on
the roof of a building), it is essential to install a vacuum breaker device onto the cold
water supply.
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Cold water
Hot water
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ENINSTALLATION
CONNECTION TO THE PRIMARY CIRCUIT
Legend
1. Stop valve
2. Charging pump
3. Check valve
4. Primary circuit stop valve
5. Primary circuit filling valve
6. Drain valve
PARALLEL TANK ASSEMBLY
Please contact ACV for any specic application.
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Cold water
Hot water

SAFETY INSTRUCTIONS TO FILL THE TANK
Essential instructions forthe safety of persons and the environment
• The DHW tank must always be filled and pressurised before filling and pressurising
the primary circuit.
• Do not use vehicle antifreeze. This can causeserious injury or death, or damage
facilities.
• If antifreeze is needed in the primary circuit, it must comply with Public
Hygiene Regulations and must be non-toxic. A food-grade Propylene Glycol is
recommended. It must be diluted according to the ratio recommended in the local
regulations.
• Consult the manufacturer to determine the compatibility of the antifreeze with the
tank's construction materials.
Essential instructions forthecorrect operation ofthesystem
• Before bringing the tank into service, check the connections to avoid any risk
ofleaks during filling.
• Only use drinking water to check that the DHW tank is watertight. The on-site
testpressure must not exceed a pressure surge of 8,6 bar.
• Using antifreeze in the primary circuit will lead to a reduction in the heating
performance. The higher the concentration of antifreeze in the circuit, the lower
the performance.
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STARTING UP

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ENSTARTING UP
FILLING
Essential instructions forthecorrect operation oftheinstallation
• The DHW tank must always be filled and pressurised before filling and pressurising
the primary circuit.
FILLING THE DHW TANK Figure 1
General remark
• Connect the safety valve outlet to the sewer.
1. To fill the tank, open a hot water tap (2) located at the highest point of the installation. It
enables to bleed the air from the installation.
2. Close the stop valve (3) of the auxiliary DHW loop if it is installed.
3. Open the filling valve (1) and the stop valves (4) to fill the DHW tank.
4. Close the hot water tap (2), after the water flow has stabilised and the air has been
completely evacuated.
5. Check all the connections of the installation for leaks.
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Figure 1
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Cold water
Hot water

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EN STARTING UP
FILLING THE PRIMARY CIRCUIT Figure 2
1. Check that the drain valve (3) of your primary circuit is tightly closed.
2. Open the stop valves (1) and (2) of the primary circuit connected to the heating boiler.
3. Open the air bleed valve (4).
4. In addition, follow the filling instructions provided with the heating boiler.
5. Open the valves (5) to start filling, making sure not to exceed a pressure of 2 bar in the
primary circuit.
6. When the air is eliminated, first close the airbleed valve (4), then the filling valves (5).
Figure 2
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Cold water
Hot water