Tesy GCV 503520 - Инструкция по эксплуатации - Страница 7

Instructions for use and maintenance

7

EN

English

3.2. 

The appliance has to be connected to a separate electricity 

circuit of the stationary electrical wiring. The connecting has to be 

constant- with no plug contacts. 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. 

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

has to be carried out as follows:

 •

conductor with brown insulation – to the phase conductor of the 

electrical wiring (L)

 •

conductor with blue insulation- to the neutral conductor of the wiring (N)

 •

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

the wiring (

)

3.3. 

Models without power cord

The appliance has to be connected to a separate electricity circuit of the 

stationary electrical wiring. The circuit has to be supplied with a safety 

fuse 16A (20A for power > 3700W). Copper single core (rigid – non 

stranded) conductor shall be used for the connection – cable 3 x 2.5 

mm² (cable 3 x 2.5 mm² for power > 3700W).

The electrical circuit supplying the appliance must have an in-built 

device ensuring the splitting of all terminal poles under conditions of 

super-voltage of category III.

To install the power supply wire to the appliances remove the plastic cover. 

Connect the power wires in compliance with the marks on the terminals, 

as follows:

 •

the phase - to mark A, A1, L or L1;

 •

the neutral - to N (B or B1 or N1)

 •

The safety wire must be obligatory connected to the screw joint 

marked with

. 

After the installation, put the plastic cover back in its place!

Explanations to Fig. 2: 

TS - thermal switch; TR - thermal regulator; S - switch (for models that have 

one); R - heater; IL - light indicator; F - flange; KL - luster terminal; 

V. 

RUST PROTECTION MAGNESIUM ANODE (FOR WATER HEATERS 

WITH WATER TANKS COVERED BY GLASS-CERAMICS COATING)

The magnesium anode protects the water tank’s inner surface from corrosion.

The anode element is an element undergoing wear and tear and is 

subject to periodic replacement.

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 stations!

VI. 

OPERATION

1. 

Switch on:

Before switching on the appliance for first time, make sure that the 

water heater is properly connected to the power supply network and 

full with water.

The appliance is switched on by a switch integrated into the installation, 

described in item 3.3 of Section IV, or upon connecting the plug to the 

electrical contact (in the case of an extension cable with plug). 

Notice: 

Models with a built -in switch - it is necessary to switch it 

on. There is an embossed marking on the button of the electrical 

switch  . 

2. 

Water heaters with electromechanical control 

Fig. 2a and 2b where:

1 - Electrical switch button (for models with а switch)

2 - Light indicators 

3 - Thermostat control knob (only for models with adjustable thermostat)

 •

Push and release the button in order to switch on the electrical 

switch. If it lightens, this means that it is switched on. The button lights 

constantly unless the switch is switched off or the appliance power 

supply from electrical main is switched off. The light indicators lighten 

too (see item 2.1. below).  

 •

In order to switch off the electrical switch, push and release the 

button again. It must stop to light if it is switched off. The light indicators 

stop lighting too.

2.1. 

Light indicators

The indicators light in red color – means that the appliance is in heating mode

The indicators light in blue color – means that water is warmed and the 

thermostat is switched off, because the set temperature is reached 
The light indicators do not light when:

 •

The electrical switch of the appliance is switched off

 •

The appliance power supply from electrical main is switched off

 •

Protection according to the temperature is switched off – see item 4 below

2.2. 

Temperature setup (for models with adjustable thermostat)

This setup allows the gradual setting of the desired temperature, 

achieved by using a handle on the control panel. Turn the knob to the 

upward indication, in order to increase the temperature of the hot water.

Place the thermostat knob in position for maximum temperature 

(unless it is on this position constantly), for period of one day each 

month - see 

Annex-I 

Maximum temperature of the thermostat. This ensures 

higher hygiene of the used hot water.

IMPORTANT

: Models that do not have thermostat control knobs have 

automatic water temperature preset by the manufacturer - see Annex-I  

Default temperature settings.

Position

e

(Energy-save mode) – At this mode, water temperature 

reaches up to approximately 60°С. Heat losses are reduced in this way. 

3. 

Аnti-freezing  function

Place the thermostat knob in position „Аnti-freezing“ according to fig.2. 

With this setup the device maintains temperature that does not allow 

the water freeze in it. 

The electrical supply of the appliance should be turned on and so must be 

the appliance. The safety valve and the pipe between the valve and the 

appliance must be protected from freezing. In case that for some reason the 

electrical supply is cut off, there is a risk of freezing of the water in the water tank. 

For this reason we recommend draining the water out of the appliance before long 

absences (longer than a week).

4. 

Protection according to the temperature (valid for all models).

The appliance is equipped with a special facility (thermal circuit-breaker) 

for protection against over-heating of the water, which is switching off 

the heater from the electricity network, when the temperature reaches 

too high values. 

When this device operates, it does not self-reset and the appliance 

will not work. Please call an authorized service for solving the 

problem.

VII. 

MODELS EQUIPPED WITH A HEAT EXCHANGER (SERPENTINE TUBE).

These are appliances with inbuilt heat exchanger and are intended to 

be connected to the heating system with maximum temperature of the 

heat carrier of 80°C.

The control over the flow through the heat exchanger is a matter of 

solution for the particular installation, whereby the choice should 

be made at its design (e.g. external thermostat that measures the 

temperature in the water tank and operates a circulation pump or a 

magnet valve).

Water heaters with a heat exchanger provide the opportunity for the 

water to be heated in two ways:

1. 

by means of a heat exchanger (coil) – a primary way of heating the water,

2. 

by means of an auxiliary electrical heating element with automatic 

operation, built in the appliance – it is used only when additional 

heating of the water is needed or in case of repairs to the system of the 

heat exchanger (coil). The proper way of connecting the appliance to 

the electric network and how to work with it has been specified in the 

previous paragraphs.

Mounting: 

In addition to the mounting manner outlined above, especially for the 

latter models, it shall be required to connect the heat exchanger to the 

heating installation. The connections are to be carried out in observance 

of the direction indicated by the arrows on Fig. 1d÷Fig. 1f.

Technical parameters (

table 5)

:

Surface of serpentine [m²] - S;

Volume of serpentine [l] - V;

Operational pressure of serpentine  [MPa] - P;

Maximum temperature of heat carrier [°C] - Tmax.
We recommend you mount stopcocks at the heat exchanger’s entry 

and exit points. By stopping the flow of the thermophore via the 

lower (stopcock) you shall avoid the unnecessary circulation of the 

thermophore during periods of use only of the electric heating element.

Upon disassembly of you water heater equipped with a heat exchanger 

you must close both stopcocks.

There is a connexion with internal thread of ½” welded to the water 

tank for the purposes of installing thermal probe – marked with „TS”. The 

appliance is fitted with brass pocket for a thermal probe which should 

be screwed into the aforesaid connexion.

The usage of dielectric bushings for connecting the heat exchanger 

to an installation of copper pipes is obligatory.

For ensuring minimal corrosion, pipes with a limited diffusion of 

gasses must be used in the installation.

VIII. 

PERIODIC MAINTENANCE

Under normal use of the heater, under the influence of high 

temperature, lime scale /the so-called lime scale layer/ is deposited 

upon the heating element’s surface. This worsens the heat exchange 

between the heating element and water. The heating element’s surface 

temperature increases along /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 center or service base. This protective 

maintenance must include cleaning and inspection of the anode 

protector (for water heaters with glass-ceramic coating), which shall be 

replace with a new one if need arises. 

In order to clean the appliances use a damp cloth. Do not clean with abrasive 

or solvent content detergents. Do not pour water over the appliance.

The manufacturer does not bare the responsibility for all 

consequences caused by not obeying the instructions, given hereby.

Instructions for protecting the environment

Old electric appliances contain precious materials and thus 

should not be thrown together with the household litter. We 

kindly ask you make your active contribution for protecting 

the resources and the environment by handing over the 

appliance in the authorized buy-back stations (if such exist).