TESY GCV 804724D C21 ECW - Инструкция по эксплуатации - Страница 7

Instructions for use and maintenance

       7

EN

English

IV. 

DESCRIPTION AND PRINCIPLE OF WORK

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 

safety-return 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 ½ ‘’ 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 (serpentine tube). The heat exchenger’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.

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.

Notice

: The installation of the unit is at the buyer’s expense.

 •

The valve and the elements linked to it must be protected from freezing.

 •

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. 

 •

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.

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. 

 •

These instructions shall also apply to water heaters equipped with a heat 

exchanger.

 •

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.

 •

This appliance can be used by children aged from 8 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. 

 •

Cleaning and user maintenance shall not be made by children without supervision.