Tesy GCV 2005624 - Инструкция по эксплуатации - Страница 6

6

EN

IV. 

DESCRIPTION AND PRINCIPLE OF WORK

The appliance consists of a boiler shell, a flange at its lower end /with 

vertically-installed boilers/ or lateral flange/with horizontally-installed 

boilers/, protective plastic panel and non-return safety valve.

1. 

The body consists of a steel reservoir (water tank) and housing (outer 

shell) with thermal insulation placed in-between made of ecologically clean 

high density polyurethane foam, and two pipes with thread G (table 1 to 

fig. 1a; table 2 to fig. 1b) for cold water supply (marked by a blue ring) and 

hot water outlet pipe (marked by a red ring).

The inner tank may be of two types depending on the model:

•

Made of steel protected form corrosion by a special glass-ceramics 

coating 

•

Made of stainless steel

The vertical water heaters may be outfitted with a built in heat exchange 

unit (boiler tube). The boiler tube’s entrance and exit are located at the 

sides and represent pipes with thread  G ¾ “. 

2. 

The flange is outfitted with: electric heater and thermostat. The water 

heaters with glass-ceramics coating are outfitted with a magnesium 

protector. 

The electric heater is used for heating the water in the tank and is 

managed by the thermostat, which automatically maintains the set 

temperature.

The thermostat has a built in overheating safety device, which switches 

of power to the heater when the water temperature reaches excessive 

values. 

3. 

The safety-return valve prevents the appliance’s complete emptying 

in the event the cold water supply is interrupted. The valve protects the 

appliance from pressure increases higher than the allowed value during 

heating (! pressure increases upon an increase of temperature), via 

release of excess pressure during the drainage opening

Attention! The safety-return valve cannot protect the appliance in the 

event of water mains pressure in excess of the acceptable pressure 

stated for the appliance.

V. 

MOUNTING AND SWITCHING ON

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.

1. 

Mounting 

We recommend the mounting of the device at close proximity to locations where hot 

water is used, in order to reduce heat losses during transportation. 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. 

Two methods of installation are possible:

•

Vertical installation (fig. 1a, table 1) – When installing the appliance onto a wall 

– the boiler should be hanged through the upper carrying plate which is fixed to the 

appliance shell.

Two hooks are used for suspending the appliance (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. 

•

Vertical installation (fig. 1b, table 2) 

When installing the water heaters models with a diameter of 560 mm follow the 

installation instructions in fig. 1b.

It is obligatory that the appliance is hanged through the two carrying plates which are 

fixed to its shell.  

Attention! It is forbidden to install the appliance (models with a 

diameter of 560 mm) with hooks.

•

Horizontal installation GCVH and GCH models (fig.1c, 1d) – At 

horizontal installation the distances between the carrying hooks are different 

with the different capacities and these values are indicated in table 3 - fig.1c 

and table 4 - fig. 1d.

Warning! The appliance must be installed in such a way, so as the 

protective plastic panel and the inlet/outlet pipes to remain on the left 

side of the boiler (frontal view). The cold water supply pipe (with a blue ring) 

must be beneath the hot water discharge pipe (with a red ring). 

Attention! 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. 

Notice

: the set does not include a protective tub and the user must 

select the same.

2. 

Water heater connection to the pipe network

Fig. 4: a) - for vertical installation; b) - for horizontal installation GCVH; c) - 

for horizontal installation GCH;

Where: 1 - Inlet pipe; 2 - Safety valve; 3 - reducing valve (for water main 

pressure > 0,6 MPa); 4 - Stop valve; 5 - Funnel connected to the sewer 

network; 6 – Hose; 7 - Drain water tap.

Upon connecting the water heater to the water mains you must consider 

the indicative color 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 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.

Attention! The presence of other /old/ safety return-valves may lead to 

a breakdown of your appliance and they must be removed.

Attention! Other type of stopping armature is not allowed between the 

protection return valve (the protective device) and the appliance. 

 Attention! The attaching of the safety return-valve to pipes with 

threads G ½ ‘’ longer than 10 mm is not allowed, otherwise this may 

damage the valve and poses danger for your appliance.

Attention! With boilers for vertical assembly, the safety valve has to be 

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

appliance being taken off. After it has been assembled it should be in 

position as shown on Fig. 2. 

Attention! 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.

Opening the cold-water stopcock of the water supply piping network and 

opening the hot-water stopcock of the water-mixing faucet carries out the 

filling of the water heater with water. After the filling is complete, a constant 

stream of water must begin to flow from the water-mixing faucet. Now you 

can close the hot water stopcock.

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 4a and 4 b) 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 as follow:

•

Models equipped with safety valve with lever - You can drain the water 

from the water heater by lifting the safety return-valve’s lever. Water will 

drain from the safety return-valve’s drainage opening

•

Models equipped with safety valve without lever - water can be drain 

directly from inlet pipe of water tank after when you disconnect it from 

water main

In the event of removing the flange, the discharge of several liters of 

water, which remain in the water tank, is normal. 

Attention! Measures must be undertaken to prevent damage from 

discharging water during draining.

In case that the pressure in the water mains is over the value pointed out 

in the above paragraph I, then it is necessary to assemble a pressure 

reduce valve, otherwise the water heater would not function properly. The 

Manufacturer does not assume any liability for problems arising out of the 

appliance’s improper use.

3. 

Water heater connection to the electrical network.

Attention! Make sure the appliance is full of water prior to switching on 

the electrical mains power.

3.1. 

Models with power cord with a plug are connected by inserting the 

plug into a contact. They are switched off the power supply by drawing the 

plug out of the contact.

Attention! The wall-plug must be properly connected to a separate 

electrical circle that is provided with a protector. It must be earthed.