Tesy GCV 804724 - 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 body consists of a steel reservoir (water tank) 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 tank may be made of steel protected from corrosion by a 

special glass-ceramic or enamel coating.

2. 

An electric heater is installed to the flange. Water heaters with glass-

ceramic coating are equipped with a magnesium protector as well.

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 device has a built-in overheating safety device 

(thermal circuit breaker), which switches off the heater from the 

electrical mains when the water temperature reaches excessive values.

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.

For wall-mounting, the appliance must be affixed to a wall by means of the 

mounting brackets attached to the unit’s body. Wall-mounting is carried out 

by means of two hooks (min. Ø 10 mm) set firmly in the wall (not included in 

the mounting set). The mounting bracket’s construction designed for water 

heaters intended for vertical mounting is universal and allows a distance 

between the hooks of 220 to 310 mm (fig. 1a).

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. 4: a – for vertical installation 

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.

For water heaters for vertical mounting, the safety valve has to be 

connected to the incoming pipe with the safety plastic panel of the 

appliance being taken off. After installing the appliance it should be in the 

position shown in Fig.2.

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. 4) in order to drain 

the water from water tank. If there is no such tap built in the pipeline, 

the water heater 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 I 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 with a power supply cord without a plug

The appliance has to be connected to a separate current loop of the 

stationary electrical installation, and also it has to be provided with a 

safety fuse with nominal current of 16A (20A for power > 3700W). The 

connection has to be permanent – with no plug connectors. The current 

loop has to be provided with a safety fuse and with an inbuilt device 

which would disconnect all poles in case of category III overvoltage. 

The connecting of the conductors of the supply cord of the appliance 

has to be carried out in the following way: 

 •

conductor with brown insulation – to the phase conductor of the 

electrical installation (L)

 •

conductor with blue insulation – to the neutral conductor of the 

electrical installation (N)

 •

conductor with yellow-green insulation – to the safety conductor of 

the electrical installation 

⏚.