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This document provides comprehensive instructions for the Tesy GCH 1004420 B12 TSRC electric water heater, covering its function, technical specifications, usage, and maintenance.
The Tesy GCH 1004420 B12 TSRC is an electric water heater designed to supply hot water to domestic premises with a water supply pressure not exceeding 6 bar (0.6 MPa). It is intended for indoor use in heated rooms where the temperature does not fall below 4°C and is not designed for continuous flow operation. The appliance is suitable for regions with water hardness up to 10°dH. In areas with harder water, annual cleaning to remove limescale deposits and using a heating power of no more than 2 kW are recommended to prevent rapid scale accumulation and potential damage to electrical components.
The water heater is a closed-type accumulating water heater with thermal insulation. Its inner tank is available with a special glass-ceramic coating or made of stainless steel, depending on the model. Key technical parameters, including nominal volume, voltage, power consumption, and pressure, are detailed on the appliance's rating plate. The nominal pressure indicated on the rating plate refers to the appliance's safety standards, not the water mains pressure. For models without a heat exchanger (coil), daily energy consumption, rated load profile, quantity of mixed water at 40°C (V40 litres), maximum thermostat temperature, default temperature settings, and energy efficiency during water heating are provided in Annex I. For models with a heat exchanger (coil), storage volume in litres and standing loss at zero load are provided in Annex II.
The water heater consists of a steel reservoir (water tank) and an outer casing with high-density polyurethane foam insulation. It features two pipes with G ½” threads for cold water inlet (blue ring) and hot water outlet (red ring). Vertical models may include a built-in heat exchanger (serpentine tube) with G ¾” threaded pipes for inlet and outlet. An electric heater, controlled by a thermostat, maintains the set water temperature. The thermostat also incorporates an overheating safety device that switches off the heater if the water temperature becomes excessively high. A safety-return valve prevents complete emptying of the appliance if the cold water supply is interrupted and protects against pressure increases by releasing excess pressure through a drainage opening. This valve cannot protect against water mains pressure exceeding the appliance's specified acceptable pressure.
The water heater must be installed in premises with normal fire resistance and should not be switched on until it is confirmed to be filled with water. Improper installation or connection can be hazardous, potentially leading to physical injury, death, property damage, or destruction due to flooding, explosion, or fire. Installation, connection to water and electricity mains, and commissioning must be performed by certified electricians and technicians in compliance with local regulations. When connecting to the electrical mains, ensure the protective earth conductor is correctly wired (for models without a plug). If the room temperature is likely to drop below 0°C, the water heater must be drained following the procedure outlined in the manual. During operation, it is normal for water to drip from the drainage opening of the protection valve, which should be left open to the atmosphere. Measures must be taken to collect or divert any leakage to prevent damage. The valve and its associated components must be protected from freezing. A hissing noise during heating is normal and indicates limescale accumulation, which requires cleaning.
Regular cleaning and inspection of the safety-return valve are crucial for safe operation, especially in regions with hard water where limescale deposits should be removed. This service is not covered by the warranty. Any alterations or modifications to the water heater's construction or electrical circuitry are strictly forbidden, as they will void the warranty. If the power supply cord is damaged, it must be replaced by a service representative or similarly qualified person to avoid risks. The appliance can be used by children aged 8 and above and persons with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, if supervised or instructed on safe use and understanding of hazards. Children should not play with the appliance, and cleaning or user maintenance should not be performed by unsupervised children. The manufacturer recommends preventive maintenance every two years by an authorized service center, including cleaning and inspection of the magnesium anode (for glass-ceramic coated models), with replacement if necessary. The appliance should be cleaned with a damp cloth; abrasive or solvent-containing detergents should not be used, and water should not be poured over the appliance. Old electrical appliances contain valuable materials and should be disposed of at authorized collection points for recycling.
General| Brand | TESY |
|---|---|
| Model | GCH 1004420 B12 TSRC |
| Category | Water Heater |
| Language | English |
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