TESY GCR 502712D E32 EC Electric Water Heater Instruction Manual
- August 16, 2024
- TESY
Table of Contents
ELECTRIC WATER HEATER
Instructions for use and storagewww.tesy.com
IMPORTANT RULES
- This technical description and instructions manual was prepared in order to acquaint you with the product and the conditions of proper installation and use. These instructions were also intended for use by qualified technicians, who shall perform the initial installation, or disassembly and repairs in the event of a breakdown.
- Following the current instructions will primarily be of interest to the consumer, but along with this, it is also one of the warranty conditions, pointed out in the warranty card, so that the consumer can benefit from the free warranty services. The producer is not responsible for damages in the appliance that have appeared as a result of operation and/or installation not corresponding to the instructions here.
- The electric water heater complies with the requirements of EN 60335-1, EN 60335-2-21.
- This appliance can be used by children aged from 3 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
- Children shall not play with the appliance.
- Children aged from 3 to 8 years are only allowed to operate the tap connected to the water heater.
- Cleaning and user maintenance shall not be made by children without supervision.
Attention! Improper installation and connection of the appliance may make
it hazardous for the health and life of consumers. It may cause grievous and
permanent consequences, including but not limited to physical injuries and/or
death. Improper installation and connection of the appliance may also lead to
damage to the consumers’ property /damage and/ or destruction/, or to that of
third persons, as a result of, but not limited to flooding, explosion and/or
fire.
Installation, connection to the main water and power supply, and putting into
operation must be carried out by certified electricians and technical
personnel certified in installation of this category of appliances, who have
obtained their license in the state where the installation and commissioning
of the appliance are carried out, and in compliance with its local
legislation.
**** All alterations and modifications to the water heater’s construction and electrical circuitry are forbidden. If such alterations or modifications are established during inspection, the appliance’s warranty shall be null and void. Alterations and modifications shall mean each instances of removal of elements incorporated by the manufacturer, building in of additional components into the water heater, replacement of elements by similar elements unapproved by the manufacturer.
Mounting
- The water heater must only be mounted in premises with normal fire resistance.
- In the event the device is mounted in a bathroom, the selected location must exclude the possibility of water spray contact from the showerhead or portable showerhead attachment.
- The water heater is designed to operate only in closed and heated premises where the temperature is not lower than 4°C and it is not designed to operate in a continuous protracted regime.
- When mounted on a wall – the device is suspended by means of the M8 bolts attached to the housing, which are installed on brackets pre-mounted and levelled with the wall. The load-bearing brackets and dowels for wall mounting are included in the kit.
Water heater connection
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The appliance is intended to supply hot water to household sites equipped with a piping system working at pressure below 6 bar (0,6 Mpa).
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The safety return-valve must be mounted on the cold water supply pipe, in observance of the direction arrow stamped on its body, indicating the incoming water’s direction. Additional stopcocks must not be mounted between the safety return-valve and the water heater.
Exception: If the local regulations (norms) require the usage of another protection valve or mechanism (in accordance with EN 1487 or EN 1489), then it must be bought additionally. For mechanisms operating in accordance with EN 1487 the announced operational pressure must be no more than 0.7 MPa. For other protection valves, the pressure at which they are calibrated must be 0.1 MPa lower than the one marked on the appliance’s sign. In these cases the safety valve which the appliance is supplied with should not be used. -
The safety valve and the pipe between the valve and the water heater must be protected from freezing. During hose draining – its free end must be always open to the atmosphere (not to be immersed). Make sure that the hose is also protected from freezing.
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In order to secure the water heater’s safe operation, the safety return-valve must undergo regular cleaning and inspections for normal functioning /the valve must not be obstructed/, and for the regions with highly calcareous water it must be cleaned from the accumulated lime scale. This service is not provided under warranty maintenance.
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In order to prevent injury to user and third persons in the event of faults in the system for providing hot water, the appliance must be mounted in premises outfitted with floor hydro insulation and plumbing drainage. Don’t place objects, which are not waterproof under the appliance under any circumstances. In the event of mounting the appliance in premises not outfitted with floor hydro insulation, a protective tub with a plumbing drainage must be placed under the appliance.
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During operation – regime of heating the water – water drops through the drainage opening of the protection valve are usual. The protection valve should be left open to the atmosphere. Measures should be taken to lead and collect the leakages in order to prevent damages.
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If the probability exists for the premise’s temperature to fall below 0°С, the water heater must be drained.
In the event you must empty the water heater, first you must cut off its power supply. The inflow of water from the water mains must first be terminated and the hot water tap of the mixing-faucet must be opened. The water tap 7 (fig 5) must be opened to drain the water from water tank. If there is no such tap build in the pipe line, than the water can be drain directly from inlet pipe of water tank after when you disconnect it from water main.
Connection to the electrical network
- Do not switch on the water heater unless you established it was filled with water..
- Upon connecting the water heater to the electric mains care must be taken to connect the safety lead.
- Models without power cord, the circuit has to be supplied with a safety fuse (16A) and with inbuilt device to ensure disconnection of all pole pieces in the conditions of over-voltage from category III.
- If the power supply cord (of models that have one) is damaged, it must be replaced by a service representative or a person with similar qualification, to avoid any risk.
- Тhe power supply conductor insulation from fixed wiring must be protected from direct contact with the flange (in zone under the plastic panel). For example, insulating sleeving having temperature rating higher than 90 °C can be used.
- During the heating the appliance could produce a hissing noise (the boiling water). This is common and does not indicate any damage. The noise gets higher with the time and the reason for this is the accumulation of limestone. To remove the noise the appliance must be cleaned from limestone. This type of cleaning is not covered by the warranty.
Dear Clients,
The TESY team would like to congratulate you on your new purchase. We hope
that your new appliance shall bring more comfort to your home.
TECHNICAL PARAMETERS
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Nominal volume, litres – see the appliance’s rating plate
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Nominal voltage – see the appliance’s rating plate
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Nominal power consumption – see the appliance’s rating plate
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Nominal pressure – see the appliance’s rating plate
This is not the water mains pressure. This is the pressure that is declared for the appliance and refers to the requirements of the safety standards. -
Water heater type – closed type accumulating water heater, with thermal insulation
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Daily energy consumption – see Annex I
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Rated load profile – see Annex I
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Quantity of mixed water at 40°C V40 in litres – see Annex I
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Maximum temperature of the thermostat – see Annex I
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Default temperature settings – see Annex I
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Energy efficiency during water heating – see Annex I
DESCRIPTION AND PRINCIPLE OF OPERATION
The appliance consists of a body, flange at the bottom side (for water heaters intended for vertical mounting) or at the sides (for water heaters intended for horizontal mounting), protective plastic panel and a safety-return valve.
- The housing consists of two steel tanks (water tanks) and a casing (outer shell) with heat insulation between them from an environmentally clean highdensity polyurethane foam and a housing (outer shell) with thermal insulation placed in-between made of ecologically clean high density polyurethane, and two pipes with thread G½‘’ for cold water supply (marked by a blue ring) and hot water outlet pipe (marked by a red ring). The inner tanks are made of steel protected from corrosion by a special glassceramic or enamel coating.
- An electric heater and a magnesium protector are installed on each flange. The electric heater is used for heating the water in the tank and is operated by the thermostat, which automatically maintains the set temperature. The appliance has two built-in devices (for each of the water tanks) for overheat protection (thermo-switches) which switch off the respective heater from the mains when the water temperature raises too much.
- The safety-return valve prevents the appliance’s complete emptying if the cold water supply stops from the water mains. The valve protects the appliance from pressure increases higher than the allowed value during heating mode (an increase of temperature causes water expansion and therefore pressure increase) by releasing the excess pressure through the drainage opening.
The safety-return valve cannot protect the appliance in the event of water mains pressure that is higher than the pressure stated for the appliance.
MOUNTING AND SWITCHING ON
Attention! Improper installation and connection of the appliance will make it hazardous with grave health consequences and may cause even death of users. It may also damage their property, that of third parties, as a result of flooding, explosion, fire. Installation, connection to the water mains and connection to power lines must be carried out by qualified technicians. A qualified technician means a person who has appropriate competencies pursuant to the regulations of the relevant state.
1. Mounting
We recommend the device to be mounted in close proximity to locations where
hot water is used in order to reduce heat losses during transportation in the
pipelines.
If the device is mounted in a bathroom, it should be in such a place so as not
to be poured with water from the showerhead or a portable showerhead
attachment.
When mounted on a wall – the device is suspended by means of the M8 bolts
attached to the housing, which are installed on brackets pre-mounted and
levelled with the wall. The load-bearing brackets and dowels for wall mounting
are included in the kit.
Vertical installation scheme – Fig. 4.1
Horizontal installation scheme – Fig. 4 2.
Depending on the installation method of the appliances (horizontal or
vertical), you can orient the TESY logo on the control panel according to the
orientation of the appliances. – Fig. 4 2.
**** In order to prevent injury to the user and/or third persons in the event of faults in the system for hot water supply, the appliance must be installed in premises with floor hydro insulation and drainage to the sewerage. Under no circumstances should you place objects which are not waterproof under the appliance. If the appliance is installed in premises without floor hydro insulation, a protective tub with drainage to the sewerage must be in place under the appliance.
Note: The set does not include a protective tub and it should be chosen/purchased by the user.
2. Connecting the water heater to the water supply system
Fig. 5 Where: 1 – Inlet pipe; 2 – safety valve; 3 – reducing valve (for
pressure in the water mains higher than 0.6 MPa); 4 – stop valve; 5 – funnel
connected to the sewerage; 6 – hose; 7 – drain water tap.
Upon connecting the water heater to the water mains you must consider the
indicative colour markings (rings) affixed to the pipes: blue for cold
(incoming) water, red for hot (outgoing) water.
**** The mounting of the safety return-valve supplied with the water heater is obligatory. The safety return-valve must be mounted on the cold water supply pipe, in accordance with the direction of the arrow stamped on its body, indicating the direction of the incoming water.
Exception: If the local regulations (norms) require the use of another protection valve or device (which conforms to EN 1487 or EN 1489), then it must be purchased additionally. For device operating in accordance with EN 1487 the declared maximum operational pressure must be no more than 0.7 MPa. For other protection valves, the pressure at which they are calibrated must be 0.1 MPa lower than the one marked on the appliance’s plate. In these cases the safety valve which the appliance is supplied with should not be used.
Other type of stopping armature is not allowed between the protection
return valve (the protective device) and the appliance.
The presence of other (old) safety return-valves may lead to a breakdown
of your appliance and they must be removed.
The attaching of the safety return-valve to threads longer than 10 mm is
not allowed; otherwise this may damage the valve and therefore pose danger to
your appliance.
The safety-return valve and the pipe between the valve and the water
heater must be protected from freezing. In case of hose draining its free end
must be always open to the atmosphere (not to be immersed). Make sure that the
hose is also protected from freezing.
To fill the water heater with water first open the hot-water tap of the water-
mixing faucet. Then open the cold-water tap of the water-mixing faucet. The
appliance is full when a constant stream of water flows from the water-mixing
faucet. Then close the hot water tap.
When you have to empty the water heater, first you must cut off its power
supply.
Then stop feeding water to the appliance. Open the hot-water tap of the
watermixing faucet. Open tap 7 (fig. 5) in order to drain the water from water
tank. If there is no such tap built in the pipeline, than the water can be
drained directly from the inlet pipe of the water tank, having it disconnected
from the water mains prior to this When removing the flange, it is normal for
several litres of water, which have remained in the water tank, to be
discharged.
**** Measures must be taken to prevent damages by the discharged water.
If the pressure in the water mains piping exceeds the value specified in paragraph II above, a pressure-reducing valve must be installed, otherwise the water heater will not be correctly operated. The manufacturer will not bear any liability for problems arising from improper operation of the appliance.
3. Connecting the water heater to the electrical mains
**** Make sure the appliance is full of water before switching on the electrical power supply.
3.1. For models with a power cord with a plug, connection to the
electrical mains is done by inserting the plug into an electrical socket.
Disconnection from the electrical mains is done by unplugging the power cord
from the socket.
**** The electrical socket must be properly connected to a separate current loop that is provided with a safety fuse. It must be earthed.
3.2. Water heaters without power cord
The appliance has to be connected to a separate current loop of the stationary
electrical installation, provided with a safety fuse with nominal current of
16A (20A for power > 3700W). Connection is done using copper single core
(rigid) conductors – cable 3 x 2.5 mm² for a total power of 3000W (cable 3 x
4.0 mm² for power > 3700W).
In the electrical circuit providing power supply for the appliance there has
to an inbuilt device which would disconnect all poles in case of category III
overvoltage.
To install the power supply wire to the water heater, remove the plastic cover
(Fig.7.2).
Connect the power supply wire in compliance with the marking on the terminals,
as it follows:
- the phase – to marking A or A1, L or L1;
- the neutral – to marking N (B or B1 or N1);
- The safety wire must be connected to the screw joint marked with .
After installation, put the plastic cover back in its place!
Explanations to Fig. 6:
T1, T2 – thermal circuit breaker; TR/EC – thermal regulator/ electronic
control; R1,
R2 – heating element; F1, F2 – flange; S1, S2 – sensor.
ANTI-CORROSION PROTECTION – MAGNESIUM ANODE
The magnesium anode provides additional protection to the water tank’s inner
surface from corrosion. It is an element undergoing wear and tear and is
subject to periodic replacement, which is at the expense of the user. In view
of the longterm and accident-free use of your water heater, the manufacturer
recommends periodic inspections of the magnesium anode’s condition by a
qualified technician and replacement whenever required, and this could be
performed during the appliance’s technical preventive maintenance.
For replacements, please contact the authorized service centres or a qualified
technician!
OPERATION
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Switch on the electric water heater
Before initial start of the appliance, please make sure that the water heater has been correctly connected to the electrical network and that it is filled up with water. Switching on the water heater is done through the device incorporated in the installation, which is described in sub-item 3.2. of section IV, or by inserting the plug into an electrical socket (for models with cord with a plug). -
Description of the control panel of the appliance The unit’s control panel displays information about the operation and condition of the water heater.
Designation of buttons and elements:
❶ – “Stand by” / “ON” button”;
❷ – Operating mode selection button;
❸ – Indicators of set manual control mode;
❹ – Indicator of set ECO mode;
❺ -Indicator of a registered problem. -
Device settings and control
• Turning on the electronic control of the device
Press the button to switch the appliance on. The operating mode set is displayed on the control panel. Press the button again to switch the electronic control off. The Stand By mode is activated and the unit automatically enters the Anti-freeze mode. The button and button remain lit on the control panel.
• Operating control mode
The button selects the operating mode. Each time you press the button, a mode is selected in sequence as follows:
WARNING: The maximum number of showers depends on the capacity of your appliances and the method of installation. (fig. 1.3 horizontal or vertical).
Manual control mode
In manual mode, the appliance works like an ordinary electric water heater.
The amount of hot water is set as equivalent to the number of showers.
The set amount of hot water and the current status of the appliance are
indicated by indicator lights on the control panel.
The “shower” symbol gives you information about the amount of hot water that
is already heated depending on the number of showers. On the control panel,
the indicator light provides feedback on the selection made.
When the “shower” symbol is lit constantly, this means that the set amount of
hot water has been reached, but when the “shower” symbol flashes, this
indicates that the appliance is heating mode.
When more than one of the set “showers” are not ready, the corresponding
“shower” symbols blink one after the other constantly. This gives inforamtion
about the set amount of hot water, as well as the amount reached at any given
time, when they are lit continuously.
ECO mode
Attention! Your TESY electric water heater is of the highest energy
class. The class of the appliance is guaranteed only when it operates in ECO
mode “Eco Smart” due to the significant energy savings that are generated.
In the ECO modes the electric water heater develops its own algorithm of
operation in order to guarantee energy saving, respectively to reduce your
electricity bill, but to maintain your maximum comfort of use.
This operating mode is especially suitable if you have established habits
regarding hot water consumption (for example, you shower at approximately the
same time each day). To operate the water heater in the “Eco” mode, press the
button until the ECO light on the control panel appears. During the first week
when the self-learning process of the appliance based on the habits of the
household takes place, the water is heated to 70 °C. After this period, the
maximum temperature of water heating depends on the actual needs.
Operation principle: When the Eco mode is selected the appliance will learn
your habits and develop a weekly program to provide you with the right amount
of water at the right time, but also so that it generates energy savings and
lowers your electricity bill. The principle of operation requires a self-
learning period of one week, after which the Eco mode automatically reproduces
the learned cycle of work and begins to accumulate energy savings without
disturbing your comfort, calculated on the basis of your habits. The appliance
monitors your habits and learns constantly. If you change your habits
frequently, the appliance could not come up with a completely accurate
algorithm that guarantees your comfort and provides hot water exactly when you
need it.
Note: When the power supply goes out, the appliance saves the Smart algorithm according to your habits for up to 45 minutes.
If you need to heat the water to a maximum temperature once, with the ECO mode activated, select the maximum number of ”shower” symbol. With this change the ECO algorithm is kept. Upon returning to the ECO mode, the operation of the water heater continues based on the algorithm developed.
• “Аnti-freezing” function
The anti-freeze function is active in the Stand By mode.
If you intend not to use the water heater for a long time, protect its
contents from freezing by pressing the button to activate the “Anti-freeze”
function, where by the water heater will maintain the water temperature at
approximately 10 °C.
WARNING: The electrical power supply of the device should be switched on. The safety valve and the pipe connecting it to the device must be secured against freezingter.
• FACTORY SETTINGS RESET function
To enable this function, the appliance must be in Stand-by mode. You can
enable it by pressing and holding the and buttons for at least 10 seconds.
During these 10 seconds you should hear two sound signals. The first one is a
test, all symbols on the display will be illuminated, and when you keep
pressing the buttons you will hear the second signal which will indicate that
you have restored the factory settings of the appliance.
WARNING: When you return to the factory settings, the smart algorithm is reset
• The “Anti-legionella” Function
The low temperature of the water in the water heater creates a favorable
environment for the development of microorganisms, and in particular the
Legionella bacterium, which can be extremely dangerous for the human body.
The Anti- Legionella / Disinfection Function is an innovative function and is
automatically activated in order to protect the water heater from the
development of bacteria in the hot water.
If the water in the water heater does not reach the temperature of 65 °C for 7
days, the anti-legionella function is activated. The water in the water heater
is warmed to 65 °C and kept at this temperature for 60 minutes.
• Problem log
When a problem is detected in the appliance, all symbols go out. The ⚠ symbol
lights up on the panel and starts flashing. At the same time, the appliance
heater switches off (the appliance stops heating) and the operating mode
indication goes out. Different errors are encoded with different number of
flashes of the symbol (flashes N times and goes out for 2 seconds).
Code of error
/number of blinks/| Name of error
---|---
1| error 1| Sensor 1 -The lower sensor is switched off
2| error 2| Sensor 1 -The lower sensor is in short circuit
3| error 3| Sensor 1 – The upper sensor is switched off
4| error 4| Sensor 1 -The upper sensor is in short circuit
5| error 5| Sensor 2 -The lower sensor is switched off
6| error 6| Sensor 2 -The lower sensor is in short circuit
7| error 7| Sensor 2 -The upper sensor is switched off
8| error 8| Sensor 2 -The upper sensor is in short circuit
9| error 9| Error reading data from NFC
10| error 10| The water heater is turned on without any water present (H1)
11| error 11| The water heater is turned on without any water present (H2)
12| error 12| The water in the inlet tank does not heat up (H1)
13| error 13| The water in the outlet tank does not heat up (H2)
14| error 14| Water freezing is possible !
Note: If you see any of the above listed errors, please contact an authorized service centre. You can find a list of them in the warranty card.
PERIODIC MAINTENANCE
In the conditions of normal use of the water heater, under the influence of
high temperature, limestone (the so-called lime scale) deposits on the surface
of the heating element. This worsens the heat exchange between the heating
element and the water. The temperature on the surface of the heating element
and around it increases. Specific noise can be heard – of boiling water. The
thermoregulator begins to switch on and off more frequently. A “deceptive”
activation of the thermal protection is possible. Due to these facts, the
manufacturer recommends preventive maintenance of your water heater every two
years by an authorized service centre or service facility, this service
remaining at the customer’s expense. This preventive maintenance should
include cleaning and examination of the anode protector (for water heaters
with glass-ceramic coating), which has to be replaced with a new one, if
necessary.
To clean the appliance, use a damp cloth. Do not use abrasive or solvent-
containing detergents.
The manufacturer does not bear responsibility for any consequences arising
from non-adherence to these instructions.
Instructions for protection of the environment
Old electric appliances contain valuable materials and must not be disposed of
with the domestic waste! Please contribute actively for the protection of the
resources and the environment and dispose of the appliance in the buy-back
centres organized for this purpose (if such are available).
TESY Ltd
Shumen, 9700, 48 Blvd. Madara,
PHONE: +359 54 859 129,
office@tesy.com
References
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