ACV HR s 320 Owner's manual

HR s
320 - 600 - 800 - 1000
Jumbo
800 - 1000
I,
O &
M
Instructions for the User
and the Installer
A1007851- 661Y1200 • E

HR s & Jumbo : A1007851 - 661Y1200 • E
Table of Contents
GENERAL RECOMMENDATIONS ..................................................................4
PRODUCT INFORMATION .............................................................................5
Energy labelling ......................................................................................................................................5
PRODUCT INFORMATION .............................................................................6
Rating Plate ................................................................................................................................................6
USER'S GUIDE..................................................................................................7
Thermostat..................................................................................................................................................7
Models - Types HRs 320 - 600 -800 - 1000 / Jumbo 800 - 1000 ...............................................8
TECHNICAL CHARACTERISTICS ................................................................ 10
Dimensions...............................................................................................................................................10
Electrical Characteristics (Option for HRs 320 - 600 - 800 - 1000)................ 13
Hydraulic Characteristics................................................................................................................ 13
Performance............................................................................................................................................ 14
INSTALLATION............................................................................................... 15
Packing Contents.................................................................................................................................15
Tools..............................................................................................................................................................15
Safety Instructions...............................................................................................................................16
G3 Requirements and Guidance...............................................................................................18
Preparation of the Tank (HR s type with soft casing).................................................22
Preparation of the Tank (Jumbo type with metal casing) ....................................... 24
Connection.............................................................................................................................................. 27
Parallel Tank Assembly (Typical - 3 tanks).........................................................................29
Connection Kits (option).................................................................................................................29

HR s & Jumbo : A1007851 - 661Y1200 • E
Table of Contents
STARTING UP................................................................................................ 30
Safety Instructions to Fill the Tank..........................................................................................30
Filling............................................................................................................................................................. 31
MAINTENANCE..............................................................................................33
Periodic Checks by the User...................................................................................................... 33
Annual Maintenance......................................................................................................................... 33
Draining...................................................................................................................................................... 34
Bringing back into Service after Maintenance............................................................... 34
3
EN

We accept no liability should any damage result from the failure to comply with theins-
tructions 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 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. Please check for an updated
version of this manual on the website www.acv.com.
• 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.
HR s & Jumbo : A1007851 - 661Y1200 • E
G R
EN
4

HR s & Jumbo : A1007851 - 661Y1200 • E
P I
ENERGY LABELLING
5
EN

HR s & Jumbo : A1007851 - 661Y1200 • E
 I
Type:
A198040
06632801
HR s 320
90°C
4 bar
230 V 50 Hz
10 bar
Sanitary Operating Pressure
Primary Operating Pressure
Maximum Design Pressure
Primary Heating Power Input
Primary Flow Rate
Actual Capacity
Standing Heat Loss
Measured acc. to EN 12897:2016
Operating Voltage
Maximum Sanitary Temperature
8,6 bar
60 kW
1,81 L/s
263 L
2,33 kWh/24h
Year: 2019
Oude Vijverweg 6,
1653 Dworp
BELGIUM
www.acv.com P/N:
S/N:
Prod. Date:
18/11/2020
Made in Belgium
(21) A198040 (91) 06632801 (92) 2019
RATING PLATE
EN
6

HR s & Jumbo : A1007851 - 661Y1200 • E
U' G
Legend :
1. Thermometer : indicates the domestic hot water (DHW) temperature in the tank.
2. Adjusting knob : allows to define the DHW preset temperature. It rotates 1/4 turn clock-
wise to set the temperature between 60°C and 85°C.
THERMOSTAT
The thermostat is optional for the HR s type tanks equipped with a soft casing, but is
standard for the Jumbo type tanks with a metal casing.
Wiring Diagram (Jumbo 800 - 1000)
B. Blue
Br. Brown
Bk. Black
Or. Orange
Y/Gr. Yellow / Green
7
EN
c1
2
Br
Y/Gr
B
OrOr
Y/Gr
Bk
Bk
N L1
L1 N
tN
PE
L
1
2

HR s & Jumbo : A1007851 - 661Y1200 • E
Appliance Description
Legend
1. DHW outlet
2. Manual air bleed valve
3. Cold water inlet
4. Black rigid polypropylene cover
5. Stainless steel dry-well
6. 100 mm soft insulation
7. Outer vinyl casing with zip fas-
tener
8. Auxiliary DHW loop
9. Primary circuit inlet
10. Inner stainless steel tank
11. Outer steel (primary) tank
12. Primary circuit outlet
MODELS  Types HRs 320 - 600 -800 - 1000 / Jumbo 800 - 1000
Indirectly heated storage water tanks, to be installed on the floor, equipped with a large
surface heat exchanger and intended for medium and high power installations. Through the
use of a specific kit, these tanks can be set in parallel, allowing the construction of high flow
rate assemblies for any type of commercial, residential or industrial facilities.
HRs 320 - 600
EN
8
1
2
6
8
9
10
11
12
3
4
5
7

HR s & Jumbo : A1007851 - 661Y1200 • E
Appliance Description
HRs/Jumbo 800 - 1000 Legend
1. DHW outlet
2. Auxiliary DHW loop
3. Cold water inlet
4. Primary circuit inlet
5. Inner stainless steel tank
6. Primary circuit outlet
7. Hand hole
8. Stainless steel dry-well
9. Manual bleed valve
10. Outer (primary) steel tank
Jumbo 800 - 1000 with metal
casing
11. Thermometer
12. Adjusting knob
13. 120 mm rock wool insulation
(not shown)
14. Metal casing
Tank shown without insulation
9
EN
1
4
6
7
9
10
8
2
3
5
11
12
13
14

HR s & Jumbo : A1007851 - 661Y1200 • E
T C
DIMENSIONS
Tank dimensions (soft casing) HRs
320 600 800 1000
A= Height mm 1600 1905 1955 2355
B= Ø mm 555 700 780 780
Cmm 255 255 345 345
Dmm 1285 1585 1595 1995
E= Ø mm 270 270 360 360
F= Ø mm 765 905 980 980
Empty weight Kg 106 201 261 308
EN
10
A
D
C
B
E
F
E
F
HR s 320-600 HR s 800-1000

HR s & Jumbo : A1007851 - 661Y1200 • E
Technical Characteristics
Tank clearance HRs
320 600 800 1000
D1 (mm) Recommended (1 tank) 1000 1000 1000 1000
Minimum (parallel assy.) 425 425 550 550
D2 (mm) Recommended 1000 1000 1000 1000
Minimum 800 800 800 800
Height (mm) Recommended 250 250 300 300
Minimum 150 180 210 180
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EN
D1
H
D2

HR s & Jumbo : A1007851 - 661Y1200 • E
Technical Characteristics
Tank dimensions Jumbo
800 1000
A= Height mm 1955 2355
B= Ø mm 780 780
Cmm 335 335
Dmm 1585 1985
E= Ø mm 360 360
Fmm 1030 1030
Empty weight Kg 360 380
Tank clearance
D1 (mm) Recommended (1 tank) 1000 1000
Minimum (parallel assy) 550 550
D2 (mm) Recommended 1000 1000
Minimum 800 800
H(mm) Recommended 300 300
Minimum 210 180
A
D
C
B
E
F
F
D1
H
D2
EN
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HR s & Jumbo : A1007851 - 661Y1200 • E
Technical Characteristics
HYDRAULIC CHARACTERISTICS
Main characteristics HR Jumbo
320 600 800 1000 800 1000
Total capacity L 318 606 800 1000 800 1000
Primary circuit capacity L 55 161 125 160 125 160
DHW capacity L 263 445 675 840 675 840
Primary circuit connection [F] " 2 2 2 2 2 2
DHW connection [M] " 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
Auxiliary DHW loop
connection [M] " 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
Primary pressure drop* mbar < 100 mbar
Heating surface area* m² 2.65 3.58 4.56 5.50 4.56 5.50
Max Design Pressure* bar 10 10 10 10 10 10
Reheat Performance - Primary
Heating Power Input* kW 60 71 82 97 82 97
Primary flow rate (to achieve
Reheat Performance)* L/s 1.81 2.08 2.08 2.08 2.08 2.08
Standing Heat Loss* kWh/24h 2.93 3.67 4.01 4.34 3.41 3.70
W 122 153 167 181 142 154
* According to EN12897:2016
ELECTRICAL CHARACTERISTICS Option for HRs 320 - 600 - 800 -
1000
Main characteristics HRs HRs / Jumbo
320 600 800 1000
Rated voltage V~ 230/240 230/240 230/240 230/240
Rated frequency Hz 50 50 50 50
Max. power kW 1.3 1.3 1.3 1.3
Max. amp. rating (fuse) A 6 6 6 6
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HR s & Jumbo : A1007851 - 661Y1200 • E
Technical Characteristics
PERFORMANCE
DHW performance HRs HR/Jumbo
Operating conditions at 80°C 320 600 800 1000
Peak flow at 40 °C L/10' 922 1345 1881 2265
Peak flow at 45 °C L/10' 790 1153 1612 1941
Peak flow at 60 °C L/10' 504 706 961 1145
Peak flow at 40 °C L/60' 2732 3437 4270 4940
Peak flow at 45 °C L/60' 2342 2946 3660 4234
Peak flow at 60 °C L/60' 1402 1733 2124 2438
Constant flow at 40 °C L/h 2172 2511 2868 3210
Constant flow at 45 °C L/h 1862 2152 2458 2751
Constant flow at 60 °C L/h 1077 1232 1395 1562
Coecient NL 18 34 67 87
Maximum Operating Conditions HRs HR/Jumbo
320 600 800 1000
Max. operating pressure - primary bar 4 4 4 4
Max. operating pressure - DHW bar 8.6 8.6 8.6 8.6
Supply pressure (DHW circuit) bar 6 6 6 6
Maximum temperature - heating side °C 90 90 90 90
Maximum temperature - DHW side °C 80 80 80 80
Water quality
• Chlorides < 150 mg/L
• 6 ≤ pH ≤ 8
• If hardness > 20°fH, water softener recom-
mended.
HR s tanks built with Duplex material provide identical DHW performance but
have a better resistance to chlorides (2000 mg/L) than those built with 304
Stainless steel (150 mg/L).
EN
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HR s & Jumbo : A1007851 - 661Y1200 • E
I
PACKING CONTENTS
All appliances are delivered tested and packed separately.
For the installation of the casing, refer to "Preparation of the Tank", pages 18 and 20
If a rating plate is provided, make sure to place it on the outer casing of the tank,
so that it is easily accessible and legible.
Jumbo tanks
Box 1 : tank + multilingual Installation,
Operation and Maintenance
Instructions.
Box 2 : Metal casing and base to
be assembled + hardware +
thermometer and thermostat to be
installed.
Box 3 : Rolls of 60 mm rock wool insulation.
HRS tanks
Box 1 : tank + multilingual Installation,
Operation and Maintenance
Instruction manual + rating plate.
Box 2 : Soft insulation
Box 3 : Insulation accessories (caps, cover,
etc.)
TOOLS



15
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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. Use an adjustable earth clamp (see example below) on one of the DHW
connections to connect to the earth. Advised copper wire section: 2.5mm².
• 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.
HR s & Jumbo : A1007851 - 661Y1200 • E
Installation
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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.
• Make sure that the appliance is connected to the earth.
• 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.
HR s & Jumbo : A1007851 - 661Y1200 • E
Installation
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G3 REQUIREMENTS AND GUIDANCE
Discharge pipe from safety valves
The Building Regulation G3 requires that any discharge from an unvented system is con-
veyed to where it is visible, but will not cause danger to persons in or about the building.
The tundish and discharge pipes should be fitted in accordance with the requirements and
guidance notes of Building Regulation G3. The G3 Requirements and Guidance sections
3.50 - 3.63 are detailed below.
For discharge pipe arrangements not covered by G3 Guidance advice should be sought
from your local Building Control Ocer.
Main characteristics :
• Any discharge pipe connected to the pressure relief devices (Expansion Valve and
Temperature/Pressure Relief Valve) must be installed in a continuously downward di-
rection and in a frost free environment.
• Water may drip from the discharge pipe of the pressure relief device.
• This pipe must be left open to the atmosphere.
• The pressure relief device is to be operated regularly to remove lime deposits and to
verify that it is not blocked.
A typical discharge pipe arrangement is shown on next page.
General remarks
• Discharge pipe-work D2 can now be a plastic pipe but only pipes that have
been tested to a minimum 110°C must be used.
• Discharge pipe D2 can now be plumbed into the soil stack but only soil stacks
that can handle temperatures of 99°C or greater should be used.
Extract from “The Building Regulation G3” :
Discharge pipe D1
3.50 Safety devices such as temperature relief valves or combined temperature and pres-
sure and pressure relief valves (see paragraphs 3.13 or 3.18) should discharge either
directly or by way of a manifold via a short length of metal pipe (D1) to a tundish.
3.51 The diameter of discharge pipe (D1) should be not less than the nominal outlet size of
the temperature relief valve.
3.52 Where a manifold is used it should be sized to accept and discharge the total di-
scharge from the discharge pipes connected to it.
3.53 Where valves other than the temperature and pressure relief valve from a single
unvented hot water system discharge by way of the same manifold that is used by the
safety devices, the manifold should be factory fitted as part of the hot water storage
system unit or package.
Tundish
3.54 The tundish should be vertical, located in the same space as the unvented hot water
storage system and be fitted as close as possible to, and lower than, the valve, with
no more than 600mm of pipe between the valve outlet and the tundish.
Note: To comply with the Water Supply (Water Fittings) Regulations, the tundish should in-
corporate a suitable air gap.
HR s & Jumbo : A1007851 - 661Y1200 • E
Installation
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3.55 Any discharge should be visible at the tundish. In addition, where discharges from
safety devices may not be apparent, e.g. in dwellings occupied by people with impai-
red vision or mobility, consideration should be given to the installation of a suitable
safety device to warn when discharge takes place, e.g. electronically operated.
Discharge pipe D2
3.56 The discharge pipe (D2) from the tundish should:
(a) have a vertical section of pipe at least 300mm long below the tundish before any
elbows or bends in the pipework; and
(b) be installed with a continuous fall thereafter of at least 1 in 200.
3.57 The discharge pipe (D2) should be made of:
(a) metal; or
(b) other material that has been demonstrated to be capable of safely withstanding
temperatures of the water discharged and is clearly and permanently marked to iden-
tify the product and performance standard (e.g. as specified in the relevant part of BS
7291)
3.58 The discharge pipe (D2) should be at least one pipe size larger than the nominal outlet
size of the safety device unless its total equivalent hydraulic resistance exceeds that
of a straight pipe 9m long, i.e. for discharge pipes between 9m and 18m the equivalent
resistance length should be at least two sizes larger than the nominal outlet size of the
safety device; between 18 and 27m at least 3 sizes larger, and so on; bends must be
taken into account in calculating the flow resistance. See figure, table and the worked
example.
3.59 Where a single common discharge pipe serves more than one system, it should be at
least one pipe size larger than the largest individual discharge pipe (D2) to be connec-
ted.
3.60 The discharge pipe should not be connected to a soil discharge stack unless it can
be demonstrated that that the soil discharge stack is capable of safely withstanding
temperatures of the water discharged, in which case, it should:
(a) contain a mechanical seal, not incorporating a water trap, which allows water into
the branch pipe without allowing foul air from the drain to be ventilated through the
tundish;
(b) be a separate branch pipe with no sanitary appliances connected to it;
(c) if plastic pipes are used as branch pipes carrying discharge from a safety device
they should be either polybutalene (PB) to Class S of BS 7291-2:2006 or cross linked
polyethylene (PE-X) to Class S of BS 7291-3:2006; and (d) be continuously marked
with a warning that no sanitary appliances should be connected to the pipe.
Note:
1. Plastic pipes should be joined and assembled with fittings appropriate to the circums-
tances in which they are used as set out in BS EN ISO 1043-1.
2. Where pipes cannot be connected to the stack it may be possible to route a dedicated
pipe alongside or in close proximity to the discharge stack.
Termination of discharge pipe
3.61 The discharge pipe (D2) from the tundish should terminate in a safe place where there
is no risk to persons in the vicinity of the discharge.
3.62 Examples of acceptable discharge arrangements are:
(b) to a trapped gully with the end of the pipe below a fixed grating and above the
water seal;
(c) downward discharges at low level; i.e. up to 100mm above external surfaces such
as car parks, hard standings, grassed areas etc. are acceptable providing that a wire
UK
HR s & Jumbo : A1007851 - 661Y1200 • E
Installation
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cage or similar guard is positioned to prevent contact, whilst maintaining visibility;
and
(d) discharges at high level: e.g. into a metal hopper and metal downpipe with the
end of the discharge pipe clearly visible or onto a roof capable of withstanding high
temperature discharges of water and 3m from any plastic guttering system that would
collect such discharges.
3.63 The discharge would consist of high temperature water and steam. Asphalt, roofing
felt and non-metallic rainwater goods may be damaged by such discharges.
600mm maximum
300mm minimum
temperature relief valve to tundish
Metal discharge pipe (D2) tundish with
continuous fall. See 3.56, Table G3 and
worked example
Tundish
Discharge below fixed
grating (3.61 gives
alternative points of
discharge)
Fixed grating
Trapped gulley
V a l v e
outlet
size
Minimum size of
discharge pipe D1
Minimum size of
discharge pipe D2
from tundish
Maximum resistance
allowed, expressed
as a length of straight
pipe (i.e. no elbows or
bends)
Resistance crea-
ted by each elbow
or bend.
G½ 15mm
22mm
28mm
35mm
Up to 9m
Up to 8m
Up to 27m
0.8m
1.0m
1.4m
G¾ 22mm
28mm
35mm
42mm
Up to 9m
Up to 8m
Up to 27m
1.0m
1.4m
1.7m
G1 28mm
35mm
42mm
54mm
Up to 9m
Up to 8m
Up to 27m
1.4m
1.7m
2.3m
Figure G3: Typical discharge pipe arrangement
Table G3 – Sizing of copper discharge pipe ‘D2’ for common temperature relief valve outlet sizes
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HR s & Jumbo : A1007851 - 661Y1200 • E
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