ACV Comfort E Series User guide

EN
100 - 130 - 160 - 210 - 240
Comfort E
InstallatIon, operatIng and
servIcIng InstructIons

EN
en
2661Y1400• C
TABLE OF CONTENTS
GENERAL 3
Notes 3
Packaging 3
SAFETY PRECAUTIONS 4
Symbols used 4
Recommendations 4
APPLIANCE DESCRIPTION 5
Operation in accordance with instructions 5
TECHNICAL CHARACTERISTICS 6
General characteristics 6
I NSTAL L ATI ON 7
Position 7
Dimensions 8
Wiring diagram 8
Hydraulic connection 9
BRINGING INTO SERVICE 12
Filling the DHW tank 12
Filling the heating circuit of the tank 12
Checks before bringing into service 13
MAINTENANCE 14
Periodic checks by the user 14
Annual maintenance 14
Replacement of the electric heating element 14
Drainage 15

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GENERAL
NOTES
This manual forms part of the items delivered with the appliance and must be given to the user
to keep in a safe place!
The system must be installed, commissioned, serviced and repaired by an approved installer,
inaccordance with current standards in force.
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.
This appliance is not intended for use by persons with reduced physical, sensory or mental
capacities, or lack of experience and knowledge (including children), unless they have been
supervised or instructed concerning use of the appliance by a person responsible for their safety.
The manufacturer reserves the right to change the technical characteristics and
features of its products without prior notice.
The availability of certain models as well as their accessories may vary according to
markets.
The installation must comply with the instructions contained in this manual as well as
with the regulations governing installations for hot water production.
PACKAGING
The units are delivered assembled, tested and packaged in a cardboard box.
Package contents
• An hot water production tank.
• An multilingual technical instructions.
• An wall-mounting kit with support and one flow diverter.

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SAFETY INSTRUCTIONS
SYMBOLS USED
Description below of the symbols used in this technical manual:
RECOMMENDATIONS
Before installing and bringing the appliance into service, first carefully read
thismanual.
It is strictly prohibited to modify the interior of the appliance in any way, without
themanufacturer's prior written agreement.
The appliance must be installed by a qualified engineer, in accordance with current
regulations.
The installation must comply with the instructions contained in this manual as well
as current regulations governing hot water production installations.
Failure to follow the instructions describing test operations and procedures could
result in personal injury or a risk of environmental pollution.
In order to ensure the appliance operates correctly, it is important to have it serviced
by an approved contractor every year.
If there is a problem please contact your contractor for advice.
Faulty parts must only be replaced with original factory parts.
Essential instruction
forthecorrect operation
oftheinstallation.
Essential instruction
forthesafety of persons
andtheenvironment.
Danger!
Risk of serious injury.
We accept no responsibility in the event of damage caused by failure to follow
theinstructions appearing in this technical manual.

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OPERATION IN ACCORDANCE
WITH INSTRUCTIONS
Our domestic hot water tanks are
designed and manufactured exclusively
for there-heating and storage of domestic
hotwater.
The domestic hot water heaters must only
be heated using heated water in a closed
circuit.
The tank is equipped with an electric
element of 2200 W controlled by the
thermostat of the Comfort E.
Key
1. Cold water inlet
2. Domestic hot water outlet
3. Manual air vent valve
4. Primary fluid inlet
5. Primary fluid outlet
6. 30 mm of insulation in polyurethane
(without CFCs)
7. Primary carbon steel tank
8. DHW stainless steel tank
9. Rigid polypropylene cover
10. External polypropylene casing
11. Stainless steel dry-well
12. Electric heating element
APPLIANCE DESCRIPTION
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TECHNICAL CHARACTERISTICS
General characteristics *
Comfort E
100 130 160 210 240
Total capacity L 105 130 161 203 242
Primary capacity L 30 55 62 77 78
Primary heating power input kW 18 19 25 28 37
Operating pressure (DHW) bar 8,6 8,6 8,6 8,6 8,6
Operating pressure (primary) bar 3 3 3 3 3
Max. design pressure bar 10 10 10 10 10
Primary ow rate L/s 0,83 0,83 0,83 0,83 0,83
Standing heat loss kWh/24h 2,73 2,73 2,92 3,82 3,87
Initial heating time minutes 9 : 10 9 : 10 8 : 50 8 : 50 8 : 50
Max. temperature ° C 90 90 90 90 90
Heating surface area m21.03 1.03 1.26 1.54 1.94
Operating system : 85°C T° of water supply : 10°C
Supply pressure
- 6 bar max. without requiring a pressure reducer.
Water quality
• Chlorides < 150 mg/L
• 6 ≤ pH ≤ 8
• If the water hardness is > 20°fH, it is advisable to install a water softener.
(*) Standard EN 12897 : 2006

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INSTALLATION
POSITION
The hot water cylinder must be installed in an area that is dry and protected from the elements.
Choose the most suitable location according to the position of the boiler and distance
tothedomestic hot water supply, in order to reduce temperature and pressure drops within the
pipe work.
The appliance should be positioned to allow the replacement of the sparge tube and
dry well during servicing, if required.
The Comfort E must be assembled with the heating electrical heating element to the
bottom (DHW pipes to the bottom).

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INSTALLATION
DIMENSIONS
Comfort E
100 130 160 210 240
Amm 845 1005 1205 1475 1720
Bmm 580 740 940 1210 1455
Cmm 215 215 215 215 210
D Ø 1" 1" 1" 1"1/4 1"1/4
Drained weight kg 37 40 47 58 65
WIRING DIAGRAM
Operating voltage : 230 V ~ 50 Hz
Key
1. Power supply plug
2. Control thermostat [60-90°C]
3. Manual RESET high limit thermostat
[103°C max.]
4. Summer/winter swicth
5. Domestic hot water priority relay
6. Electric heating element
7. Loding pump [in option]
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6
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6
c
1
2c
1
23
4
6
5
Br
Y/Gr
B
Br
B
BrBrWW
Y/Gr
BBB
B
G
B
R
G
Bk
Or
R
R
BBr
R
V
Br
Or
B
A
C
D
D
Ø 3/4" Ø 3/4"
360
300
Ø 563 mm
B
A
C
D
D
Ø 3/4" Ø 3/4"
360
300
Ø 563 mm

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INSTALLATION
HYDRAULIC CONNECTION
The installation of a safety unit
iscompulsory.
To avoid water discharge on to the
tank, the safety unit must never
be installed above the tank.
In certain countries the domestic
kits must be approved and
included a temperature and
pressure relief valve fitted in the
hot outlet.
To avoid any risk of corrosion,
connect the stainless steel tank
directly to the earth.
Hot water can burn!
ACV recommends using
apreset thermostatic mixer
valve in order to provide hot
water at a maximum of 60°C.
Recommendations
• The tank’s cold water supply pipe must
be fitted with a safety unit that includes
at least: an isolating valve, anon-return
valve, a domestic safety valve calibrated
to 7 bar and an expansion vessel of
suitable size.
• When the operating pressure exceeds
6 bar, a pressure reducer (2) must be
installed before the safety unit.
• Union fittings are recommended
for the easy dismantling of the DHW
connections. Ideally, the “dielectric”
version is favourable to protect
theconnections from corrosion with
the presence of different metals such
ascopper and galvanised steel.
• The installation of a domestic expansion
vessel avoids discharge from the safety
valve (loss of water).
• Capacity of domestic water vessels:
5 Litres for the models : 100 / 130
8 Litres for the models : 160 / 210
12 Litres for the model : 240
Refer to the manufacturer’s
technical instructions on the
expansion vessel for more details.
DHW connection kit available
(code:10800102)
A. DHW temperature control valve
B. Mixed domestic hot water outlet
C. Cold water supply
D. Drainage connection
E. DHW expansion vessel connection
S. Safety valve (7 bar)
TH. Tank hot water outlet
TC. Tank cold water inlet
A
B
E
S
DC
TCTH

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INSTALLATION
CONNECTION TO THE HEATING CIRCUIT
Key
1. Heating stop valve
2. Charging pump
3. Check valve
4. Stop valve
5. Primary circuit filling valve
6. Drain down valve
7. Manual air vent valve
DOMESTIC HOT WATER CONNECTION
Key
1. Domestic water supply valve.
2. Pressure reducer
3. Check valve
4. Stop valve
5. DHW expansion vessel
6. Pressure gauge
7. Safety valve
8. Drain down valve
9. Hot water outlet
10. Earth connection
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INSTALLATION
CONNECTION DIAGRAM FOR USE AS ELECTRIC DHW HEATER ONLY
Key
1. Domestic water supply valve.
2. Pressure reducer
3. Check valve
4. Stop valve
5. DHW expansion vessel
6. DHW pressure gauge
7. DHW safety valve
8. Drain down valve
9. Hot water outlet
10. Earth connection
11. Primary expansion vessel
12. Primary pressure gauge
13. Primary safety valve
14. Primary manual air vent
31 42
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7
8
6
5
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4
4
3
4
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14
THIS CONNECTION
TO BE PLUGGED
Do not power the heating element if the primary circuit is not filled and correctly purged.

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BRINGING INTO SERVICE
FILLING THE DHW TANK
Before bringing the hot water tank into service, check the connections to avoid any
any risk ofleaks during filling.
The sealing of the DHW tank must only be checked with the feed water.
Thetestpressure on the site must not exceed a pressure surge of 7 bar.
The DHW tank must always be filled and pressurised before filling and pressurising
the heating circuit.
• To vent the DHW installation, simply open
the highest hot water valve (9).
• Fill the domestic hot water tank, by
opening the valves (1) and (4).
• Close the hot water valve (9), after the water
flow has stabilised and the air has been
completely evacuated.
• Check all connections of the installation for
leaks.
FILLING THE HEATING CIRCUIT OF THE TANK
Do not use vehicle or
non-dilutedantifreeze.
This can causeserious injury, lead
toloss of life or damage rooms.
• Check that the drainage valve (6) for your
primary installation is fully closed.
• Open the valves (1) and (4) of the heating
circuit connected to the boiler.
• Open the air vent valve located in the upper
part of the hot water tank.
• In addition, follow the instructions provided
with the boiler for filling.
• Open the valves (7) to start filling.
• When the air is eliminated, first close the
airvent valve, then the filling valves (5).
• If antifreeze is needed in the primary circuit,
it must comply with Public Hygiene Regulations and must not be toxic. A food grade of
Propylene Glycol is recommended. Consult the manufacturer to determine the compatibility
of the antifreeze with the tank’s construction materials.
Fill the system with the fresh tap water. Contact your ACV representative or installer
about the use of inhibitors.
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BRINGING INTO SERVICE
CHECKS BEFORE BRINGING INTO SERVICE
• Check that the safety valves (DHW) and (heating) are correctly installed and that the outlets
are connected to the drain.
• Check that the DHW tank and the primary circuit are filled with water.
• Check that the air has been correctly vented on both circuits.
• Check that the heater’s upper air vent valve is water tight.
• Check that the DHW and heating pipes are correctly connected and not leaking.
• Check that the appliance is ON.
Recommendations
The risk of developing bacteria exists, including “Legionella pneumophila”,
ifaminimum temperature of 60°C is not maintained in both the storage tank
andinthe hot water distribution network.
Water heated for washing clothes, dishes and 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.
In the event of small amounts of hot water repeatedly being drawn, a stratification
effect can develop in the tank. The upper hot water layer may then reach very high
temperatures.
A thermostatic mixer valve will ensure that extremely hot water does not run
fromthe taps.

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MAINTENANCE
PERIODIC CHECKS BY THE USER
• Check the pressure on the boiler. This should be between 0.5 and 1.5 bar.
• Each month visually inspect the valves, connections and accessories in order to detect any
leaks or malfunction.
• Periodically check the air vent valve located in the upper part of the tank to ensure that
itisnot leaking.
• Check the DHW safety valves are in good working order.
• In the event of a problem, please contact an engineer or your installer.
ANNUAL MAINTENANCE
The annual maintenance service, performed by an engineer, must include:
• A check of the air vent valve:
The venting of air can lead to the need for adding water to the system.
Check the pressure on the boiler’s pressure gauge.
• The manual activation of the DHW safety valve once a year.
This operation will lead to a discharge of hot water.
Before draining hot water through the safety valve, ensure that the outlet goes
directly to the drain to avoid any risk of burning and potential damage as a result.
• The discharge pipe must be open to the outside.
• If the safety unit drips periodically, this may be due to an expansion problem or clogging
ofthe valve.
• Follow the circulator’s maintenance instructions.
• Check that the valves are in good working order.
REPLACEMENT OF THE ELECTRIC HEATING ELEMENT
• Switch off and disconnect the mains power supply to the appliance.
• Be careful with the high temperature of the cylinder.
• Drain the primary tank.
Danger!
Risk of scalding while emptying the tank.

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MAINTENANCE
D R A I N VA LV E
Recommendations
Drain the tank if it is not used in winter and is at risk from exposure to ice.
If the primary circuit water contains antifreeze, only the DHW tank must be drained.
Before draining the DHW, isolate the tank and lower the pressure of the primary
circuit to 1 bar, in order to protect the DHW tank from crushing.
If the heating circuit does not contain antifreeze, the heating circuit and domestic
water must be drained. Always drain the heating circuit before draining the DHW.
Drainage of the heating tank
To drain the primary circuit of the hot water heater:
• Isolate the hot water primary circuit byclosing valves (A) and (B).
• Connect the drain valve (C) to the drain using a flexible hose.
• Open the drain valve (C) and drain thewater from the primary circuit tothedrain.
• Open the tank’s air vent valve (D) toaccelerate drainage.
• Close the drain valve (C) and air vent (D) after draining the tank.
C
B
D
A

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MAINTENANCE
Drainage of the DHW tank
To drain the hot water heater’s DHW tank:
• Close the check valve (1).
• Connect the drain valve (2) to the drain using a flexible hose.
• Open the drain valve (2) and drain the water from the DHW tank to the drain.
• Open the domestic hot water tap (3) toaccelerate the tank’s drainage.
• Close the drain valve (2) and the hot water tap(3) after draining the cylinder’s DHWtank.
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