TGRH80C6 - Water heater GORENJE - Free user manual and instructions

Product Type	Electric Water Heater
Brand	Gorenje
Model	TGRH80C6
Capacity	80 L
Dimensions (A x B x C x D)	778 mm x 122.5 mm x 190 mm x 345 mm
Empty Weight	27 kg
Filled Weight	107 kg
Rated Pressure	0.6 / 0.9 / 1.0 MPa (6 / 9 / 10 bar)
Heating Power	2000 W
Voltage	230 V ~
Protection Class	I
Ingress Protection	IP23
Heating Time (10°C to 65°C)	2 h 37 min
Temperature Range	25 °C - 70 °C
Eco Mode Temperature	55 °C
Installation	Horizontal wall mounting
Water Connection	Closed (pressure) or open (gravity) system
Safety Valve Required	Yes, rated at 0.6/0.9/1.0 MPa, with atmospheric outlet
Anti-Corrosion Protection	Enamelled tank + Magnesium anode (inspect periodically)
Frost Protection Mode	Set thermostat to "*" (approx. 10°C)
Cleaning	Soft cloth with mild detergent; avoid alcohol/abrasives
Mixed Water at 40°C	130 L
Replacement Parts	Heating element, thermostat, anode, safety valve (authorized service)

Frequently Asked Questions - TGRH80C6 GORENJE

How do I install the water heater?

Installation must be performed by qualified staff. The heater should be mounted horizontally on a wall using screws of at least 8 mm diameter. Ensure the wall can bear the filled weight (107 kg). Follow local regulations and connect water supply according to the chosen system (closed pressure or open gravity). Do not install a shut-off valve between the heater and the safety valve.

How do I fill the water heater for the first time?

Before connecting to power, fill the heater with water. Open the hot water tap on the mixing valve and then open the cold water supply. When water flows steadily from the hot tap, the heater is full. Close the tap and check for leaks.

Why does water drip from the safety valve?

Dripping is normal in a closed system as water expands when heated. The safety valve releases excess pressure. To reduce dripping, you can install an expansion tank (at least 5% of heater volume). Ensure the valve outlet is directed downward and not frozen. Periodically check the valve by turning the handle or nut; water should flow freely.

How do I set the temperature?

Turn the thermostat knob to set between 25°C and 70°C. For economical operation, set to the 'eco' position which maintains 55°C, reducing lime scale and heat loss. To prevent freezing, set to '*' (about 10°C) and keep power on.

What maintenance is required?

Regular inspections by an authorized service are required to check the magnesium anode and remove lime scale. The anode wear determines inspection intervals (see warranty). Clean the exterior with a soft cloth and mild detergent; avoid alcohol or abrasives.

How do I drain the water heater?

Disconnect from power. Open the hot water tap and wait for water to cool. Close cold water inlet. Unscrew the flexible pipe on the hot outlet (or use a T-element with drain valve). Drain through the inlet pipe. Some water remains inside.

What does the heater protection class IP23 mean?

IP23 means protected against solid objects >12.5 mm (fingers) and against water spray up to 60° from vertical. Suitable for indoor installation but not for direct water spray.

Can I use the heater with a pressure higher than rated?

No. If the water supply pressure exceeds the rated pressure (0.6/0.9/1.0 MPa), install a pressure reducing valve. The safety valve is set to release at 0.1 MPa above rated.

What if the water does not heat?

Check the power supply and that the circuit breaker is on. Ensure the thermostat is set correctly. If the thermal cut-out has tripped (due to overheating), press the reset button (if accessible) or call an authorized service. Do not attempt internal repairs.

What does the warranty cover?

The tank corrosion warranty is valid only if periodic anode inspections are performed by authorized service and recorded in the warranty certificate. Other parts are covered per standard terms. Refer to the warranty document for details.

USER MANUAL TGRH80C6 GORENJE

White cylindrical water tank with a side knob and control knob, no visible text or symbols on the body.

TGRH 50-120 C6

Instructions for Use 4

The appliance may be used by children older than 8 years old, elderly persons and persons with physical, sensory or mental disabilities or lacking experience and knowledge, if they are under supervision or taught about safe use of the appliance and if they are aware of the potential dangers.

Children should not play with the appliance.

Children should not clean or perform maintenance on the appliance without supervision.

⚠️ Installation should be carried out in accordance with the valid regulations and according to the instructions of the manufacturer and by qualified staff.

In a closed, pressurised system of installation, it is obligatory to install a safety valve on the inlet pipe with a rated pressure of 0.6 MPa (6 bar), 0.9 MPa (9 bar) or 1.0 MPa (10 bar) (see the label), which prevents the elevation of pressure in the boiler by more than 0.1 MPa (1 bar) above the rated pressure.

Water may drip from the outlet opening of the safety valve, so the outlet opening should be set to atmospheric pressure.

The outlet of the safety valve should be installed facing downwards and in a non-freezing area.

To ensure proper functioning of the safety valve, the user should perform regular controls to remove limescale and make sure the safety valve is not blocked.

Do not install a stop valve between the water heater and the safety valve, because it will impair the pressure protection of the heater!

Before connecting it to the power supply, the water heater must be filled with water!

The heater is equipped with an additional thermal cut-off for protection in case of failure of the operating thermostat. In this case, however, the temperature of the water in the heater can reach up to 130 °C according to the safety standards. During the water supply installation, the possibility of temperature overloads should be taken into account.

If the heater is to be disconnected from the power supply, please drain any water from the heater to prevent freezing.

Water can be drained from the heater through the boiler inlet pipe. For this purpose it is advisable to install a T-element with an outlet valve between the inlet pipe and safety valve.

⚠️ Please do not try to fix any defects of the water heater on your own. Call the nearest authorised service provider.

Our products incorporate components that are both environmentally safe and harmless to health, so they can be disassembled as easily as possible and recycled once they reach their final life stage.

Recycling of materials reduces the quantity of waste and the need for production of raw materials (e.g. metals) which requires a substantial amount of energy and causes release of harmful substances. Recycling procedures reduce the consumption of natural resources, as the waste parts

made of plastic and metal can be returned to various production processes. For more information on waste disposal, please visit your waste collection centre or the store where the product was purchased.

Dear buyer, thank you for purchasing our product. Prior to the installation and first use of the electric water heater, please read these instructions carefully.

This water heater has been manufactured in compliance with the relevant standards and tested by the relevant authorities as indicated by the Safety Certificate and the Electromagnetic Compatibility Certificate. Its technical characteristics are indicated on the label on the bottom of the heater next to the pipes. The installation must be carried out by qualified staff. All repairs and maintenance work within the water heater, e.g. lime removal or inspection/replacement of the protective anticorrosion anode, must be carried out by an authorised maintenance service provider.

INSTALLATION

The water heater shall be installed as close as possible to the outlets. When installing the water heater in a room with a bathtub or shower, take into account the requirements defined in IEC Standard 60364-7-701 (VDE 0100, Part 701). It has to be fitted to the wall using appropriate wall screws with a minimum diameter of 8 mm. A wall with a poor load-bearing capacity must be properly reinforced where the heater will be installed. The water heater may only be fixed upon the wall horizontally (see Fig. 1).

	A	B	C	D
TGRH 50	572	25	185	145
TGRH 80	778	122,5	190	345
TGRH 100	938	192,5	200	495
TGRH 120	1093	265	205	645

Connection and installation dimensions of the water heater [mm]

Fig. 1: Horizontal installation on a wall

CONNECTION TO THE WATER SUPPLY

The water heater connections for the inlet and outlet of water are colour-coded. The inlet of cold water is marked with blue colour, while the hot water outlet is marked with red colour.

The water heater can be connected to the water supply in two ways. The closed-circuit pressure system enables several points of use, while the open-circuit gravity system enables a single point of use only. The mixer taps must also be installed in accordance with the selected installation mode.

In a closed, pressurized system (Fig. 2) pressurised mix taps should be used at the outlet points. To ensure safe operation of the heater a safety valve should be installed on the inlet pipe to prevent elevation of pressure for more than 0.1 MPa (1 bar) above the nominal pressure. The outlet opening on the safety valve must be equipped with an outlet for atmospheric pressure. The heating of water in the heater causes the pressure in the tank to increase to the level set by the safety valve. As the water cannot return to the water supply system, this can result in dripping from the outlet of the safety valve. The drip can be piped to the drain by installing a catching unit just below the safety valve. The drain installed below the safety valve outlet must be piped down vertically and placed in an environment that is free from the onset of freezing conditions.

To avoid water dripping from the safety valve, an expansion tank should be installed on the inlet pipe of the heater with the capacity of at least 5 % of the heater volume.

To ensure proper operation of the safety valve, periodical inspections must be carried out to remove limescale and make sure the safety valve is not blocked.

To check the valve, open the outlet of the safety valve by turning the handle or unscrewing the nut of the valve (depending on the type of the valve). The valve is operating properly if the water comes out of the nozzle when the outlet is open.

An open-circuit, non-pressurised system (Fig. 3) requires the installation of a non-return valve at the water inlet to prevent water draining out from the tank in the event of the water supply running dry. This installation mode requires the use of an instantaneous mixing tap.

As the heating of water expands its volume, this causes the tap to drip. The dripping cannot be stopped by tightening it further; on the contrary, the tightening can only damage the tap.

graph LR
    1["Component 1"] --> T["T"]
    T --> 2["Component 2"]
    2 --> 3["Component 3"]
    3 --> 4["Component 4"]
    4 --> a["a"]
    a --> b["b"]
    b --> 5["Component 5"]
    5 --> 6["Component 6"]
    6 --> 7["Component 7"]
    7 --> H["H"]

Fig. 2: Closed (pressure) system

Fig. 3: Open (non-pressure) system

Legend:

1 - Pressure mixer taps
2 - Expansion tank
3 - Safety valve
a - Test valve
b - Non-return valve
4 - Funnel with outlet connection
5 - Checking fitting
6 - Pressure reduction valve
7 - Closing valve
8 - Non-return valve
9 - Low pressure mixer tap
H - Cold water
T - Hot water

No closing valve may be built-in between the water heater and return safety valve, because with it the pressure protection would be impeded!

The heater can be connected to the domestic water supply network without a pressure-reducing valve if the pressure in the network is lower than the nominal pressure. If the pressure in the network exceeds the nominal pressure, a pressure-reducing valve must be installed.

Before connecting it to the power supply, the water heater must be filled with water.

When filling the heater for the first time, the tap for the hot water on the mixing tap must be opened. When the heater is filled with water, the water starts to run through the outlet pipe of the mixing tap.

CONNECTING THE WATER HEATER TO THE POWER SUPPLY NETWORK

Close-up of a white mechanical component with a central knob and two directional arrows indicating rotation or movement (no text or symbols)

Before connecting to the power supply network, install a power supply cord in the water heater, with a min. diameter of 1.5 mm ² (H05VV-F 3G 1.5 mm ² ). To do this, the protective cap must be removed from the water heater.

In the electrical installation, please install a disconnect switch to separate all poles from the power supply network in accordance with the national regulations.

Fig. 4: Removing the protective cover

Legend:

1 - Connection terminal
2 - Thermostat and bipolar thermal cut-out
3 - Electric heating element
4 - Pilot lamp

L - Live conductor
N - Neutral conductor
± - Earthing conductor

Fig. 5: Electric installation

CAUTION: Before any intervention into the interior of the water heater, disconnect it from the power supply network! This intervention may only be performed by a trained professional!

After connecting to the water and power supply, the heater is ready for use. By turning the thermostat knob, water temperature can be set between 25 °C and 70 °C. We recommend that the knob be set to the position "eco" ensuring the most economic operation of the water heater. This way, the water temperature is maintained at 55 °C while the operation also results in less lime sediment as well as in less heat losses than is the case at higher temperatures. During the operation of an electric heater can hear noise in the water heater. The light indicator shows the operation of the heating element. On the casing of the water heater a bimetal thermometer is mounted, pointing clockwise (to the right) whenever there is hot water in the water heater. When the water heater is not in use for longer periods of time, it should be protected from freezing by setting the temperature to "*". Do not disconnect the power. Thus the temperature of water is maintained at about 10 °C. If you are planning to unplug the heater from power supply, please drain out all the water to prevent freezing. Water can be drained from the heater through the boiler inlet pipe. For this purpose it is advisable to install a T- element with an outlet valve between the inlet pipe and safety valve. Before draining, please unplug the heater from the power supply, open the warm water handle on the mixing tap and drain the warm water. When the water in the heater is cooled, close the flow of cold water into the heater and unscrew the flexible pipe on the warm water outlet. The heater can now be drained through the outlet valve on the inlet pipe. After draining the water through the inlet pipe, a small quantity of water remains in the heater. When refilling the heater with water it is recommended to open the warm water tap on the mixing tap and let the water run for at least two minutes through the outlet pipe (the water stream should be steady, medium strength, about as thick as a pencil).

Clean the exterior of the heater using a soft cloth and mild detergent intended for cleaning smooth varnished surfaces. Do not use detergents that contain alcohol or abrasives.

With regular service inspections you will ensure faultless functioning and long life of the heater. Tank corrosion warranty applies only if all the prescribed regular

inspections of the protective anode wear have been made. The period between regular inspections should not be longer than stated in the warranty certificate. Inspections should be carried out by authorised service providers that will record each inspection on the warranty statement of the product. Upon inspection the service provider will inspect the amount of wear on the anti-corrosion anode and, if necessary, clean the limescale that accumulates depending on the quality, quantity and temperature of the water inside the heater. The service provider will also recommend the date for the next inspection depending on the condition of the heater.

Please do not attempt to fix any defects of the heater by yourself. Call the nearest authorised service company.

TECHNICAL PROPERTIES OF THE APPLIANCE

Type		TGRH 50	TGRH 80	TGRH 100	TGRH 120
Volume	[I]	50	80	100	120
Quantity of mixed water at 40 °C	[I]	80	130	174	210
Rated pressure	[MPa(bar)]	0,6 (6) / 0,9 (9) / 1,0 (10)
Weight / Filled with water	[kg]	21/71	27/107	31/131	35/155
Anti-corrosion of tank enamelled / Mg Anode		• / •	• / •	• / •	• / •
Power of electrical heater	[W]	2000
Voltage	[V~]	230
Protection class		I
Degree of protection		IP23
Heating time from 10 °C to 65 °C	[h]	138	237	316	355

WE RESERVE THE RIGHT TO MAKE CHANGES THAT DO NOT IMPAIR THE FUNCTIONALITY OF THE DEVICE.

The user manual can also be found at our website http://www.gorenje.com.

VËREJTJE

Fig. 3: Sistemi i hapur (pa presion)

Legjenda:

Close-up of a metallic mechanical component with a central hub and two arrows indicating direction (no text or symbols)