Tesy GCR 502712 - Инструкция по эксплуатации - Страница 7

7

EN

English

II. 

TECHNICAL PARAMETERS

1. 

Nominal volume, litres - see the appliance’s rating plate

2. 

Nominal voltage - see the appliance’s rating plate

3. 

Nominal power consumption - see the appliance’s rating plate

4. 

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.

5. 

Water heater type – closed type accumulating water heater, with thermal 

insulation

6. 

Daily energy consumption – see Annex I

7. 

Rated load profile – see Annex I

8. 

Quantity of mixed water at 40°C V40 in litres – see Annex I

9. 

Maximum temperature of the thermostat – see Annex I

10. 

Default temperature settings – see Annex I

11. 

Energy efficiency during water heating – see Annex I

III. 

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.

1. 

The housing consists of two steel tanks (water tanks) and a casing (outer 

shell) with heat insulation between them from an environmentally clean high-

density 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 glass-

ceramic or enamel coating.

2. 

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.

3. 

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.

IV. 

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 water-

mixing 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.

V. 

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 long-

term 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!