TGRK120LN - Air-conditioner GORENJE - Free user manual and instructions

Product Type	Combined Electric Water Heater with Heat Exchanger
Brand	Gorenje
Model	TGRK120LN
Volume	117 L
Rated Pressure	0.6 MPa (6 bar)
Empty Weight	42 kg
Filled Weight	159 kg
Heating Element Power	2000 W
Supply Voltage	230 V~
Protection Class	I
Ingress Protection	IP23
Connection Thread	G 3/4
Heating Time to 65°C	Approx. 3.5 hours
Mixed Water Volume at 40°C	230 L
Standby Energy Consumption	2.60 kWh/24h
Heat Exchanger Surface	0.4 m²
Heat Exchanger Volume	1.86 L
Heat Exchanger Max Power	10.55 kW (depending on temperature)
Installation	Wall-mounted vertical
Water Connection	Closed pressure or open gravity system
Safety Valve Pressure	0.6 MPa (6 bar)
Anti-corrosion	Enamelled tank and Magnesium anode
Temperature Range	25°C to 65°C (Eco mode at 55°C)
Warranty	Refer to manufacturer

Frequently Asked Questions - TGRK120LN GORENJE

How do I set the water temperature?

Turn the thermostat knob to set temperature between 25°C and 65°C. For economical operation, use the Eco mode (55°C) which reduces lime buildup and heat loss.

What does the Eco mode do?

The Eco mode maintains water at 55°C, reducing energy consumption, lime sediment, and heat losses compared to higher temperatures. It is recommended for daily use.

How do I drain the water heater?

Disconnect power, open hot water tap, then drain through the inlet pipe. For complete draining, remove the heating flange. Use a T-fitting or discharge tap on the inlet for easier draining.

What maintenance is required?

Periodic inspections by an authorized service provider are recommended every 3 years to check the magnesium anode and remove lime scale. Regular safety valve checks by the user are also advised.

Can I connect the water heater to a solar system?

Yes, the TGRK120LN has a built-in heat exchanger that allows heating from other sources like solar collectors or central heating. Connect the heating medium to the heat exchanger (red inlet, blue outlet).

Why is water dripping from the safety valve?

Dripping is normal during heating due to thermal expansion. The safety valve releases excess pressure. Install a catching unit or an expansion tank to manage the drip. Do not block the valve.

How do I connect a hot water circulation line?

Connect the return line to the top connection of the heater. Remove the plastic cap and sealing plug before connection. Install the circulation line before filling the heater. Note that it increases heat losses.

What is the maximum inlet water pressure?

The rated pressure is 0.6 MPa (6 bar). If the supply pressure exceeds this, a pressure-reducing valve must be installed. Without it, the heater may be damaged.

How do I check the magnesium anode?

The anode should be inspected by an authorized service provider every 3 years. It is located inside the tank and protects against corrosion. Replace if worn more than 50%.

Is the water heater safe for children?

Yes, children older than 8 years can use it under supervision. The appliance has safety features like thermal cut-out and safety valve. Ensure children do not play with the device.

USER MANUAL TGRK120LN GORENJE

Exterior view of a white cylindrical water heater with a small gauge and red dial indicator (no text or symbols on the body)

TGRK 80-120 D/L

Instructions for Use 10

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 maintain the appliance without supervision.
The installation should be performed in accordance with the valid regulations and the instructions of the manufacturer. It should be performed by a professionally trained installation expert.
In a closed, pressurised system of installation, it is obligatory to install a safety valve with a rated pressure of 0.6 MPa (6 bar), 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 functioning of the safety valve!
Before connecting it to the power supply, the water heater must be filled with water!
Water can be drained from the water heater through the boiler inlet pipe. For this purpose it is advisable to install a special element or 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.

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.

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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. The technical characteristics of the product are listed on the label affixed between the inlet and outlet 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 vertically.

TECHNICAL PROPERTIES OF THE APPLIANCE

Type		TGRK 80 D TGRK 80 L	TGRK 100 D TGRK 100 L	TGRK 120 D TGRK 120 L
Volume	[l]	78	97	117
Rated pressure	[MPa (bar)]	0,6 (6)
Weight / Filled with water	[kg]	32/110	38/135	42/159
Anti-corrosion of tank		enamelled & Mg Anode
Power of electrical heater	[W]	2000
Connection voltage	[V~]	230
Protection class		I
Degree of protection		IP23
Return conductor connection		G 3/4
Duration of heating to 65 °C1)	[h]	235	310	350
Quantity of mixed water at 40 °C	[l]	140	195	230
Energy consumption2)	[kWh/24h]	1,85	2,20	2,60

1) Time for heating the whole content of heater if the initial temperature of cold water from water supply is 10 °C .

2) Energy consumption to maintain the temperature of water in the water heater at 65 °C if the surrounding temperature is 20 °C , measured according to EN 60379.

TECHNICAL PROPERTIES OF THE HEAT EXCHANGER

Type		TGRK 80 DTGRK 80 L	TGRK 100 DTGRK 100 L	TGRK 120 DTGRK 120 L
Rated pressure	[MPa (bar)]	0,6 (6)
HE heated surface	[m2]	0,24	0,4
HE volume	[l]	0,72	1,86
Heating power of HE	[kW]	4,153)5,355)	6,654)10,556)
Temperature of the heating medium in HE[°C]		5 to 85

HE - Heat exchanger
3) 50-70 °C, 105 l/h; 4) 50-70 °C, 167 l/h; 5) 60-80 °C, 134 l/h; 6) 60-80 °C, 265 l/h

	A	B	C	H1	H2
TGRK 80 D/L	775	565	190	355	200
TGRK 100 D/L	935	715	200	375	340
TGRK 120 D/L	1090	865	205	530	340

Connection and installation dimensions of the water heater [mm]

View from above

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.

The open-circuit gravity system requires the installation of a non-return valve in order to prevent the water from draining out of the tank in the event of the water supply running dry or being shut down. This installation mode requires the use of a cross-flow mixer 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.

The closed-circuit pressure system requires the use of pressure mixer taps. For safety reasons the supply pipe must be fitted with a safety valve or alternatively, a valve of the safety class that prevents the pressure in the tank from exceeding the nominal pressure by more than 0.1 MPa (1 bar). The outlet opening on the relief 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.

In case the existing plumbing does not enable you to pipe the dripping water from the safety valve into the drain, you can avoid the dripping by installing a 3-litre expansion tank on the inlet water pipe of the boiler.

In order to provide correct operation of the safety valve, periodical inspections of the relief valve must be carried out by the user to eliminate any limescale and check if the

safety valve is 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.

graph LR
    A["Top Tank"] --> B["Valve"]
    B --> C["Reactor Unit"]
    C --> D["Flow Control Valve"]
    D --> E["Return Line"]
    E --> F["Outlet H"]
    G["Turb T"] --> H["Downward Flow"]
    I["Downward Flow"] --> J["Downward Flow"]
    K["Downward Flow"] --> L["Downward Flow"]
    M["Downward Flow"] --> N["Downward Flow"]
    O["Downward Flow"] --> P["Downward Flow"]
    Q["Downward Flow"] --> R["Downward Flow"]
    S["Downward Flow"] --> T["Downward Flow"]
    U["Downward Flow"] --> V["Downward Flow"]
    W["Downward Flow"] --> X["Downward Flow"]

Closed (pressure) system

graph TD
    A["Top Tank"] --> B["Valve T"]
    B --> C["Valve H"]
    C --> D["Flow 3"]
    D --> E["Valve 5"]
    E --> F["Return Line"]
    style A fill:#f9f,stroke:#333
    style F fill:#ccf,stroke:#333

Open (non-pressure) system

Legend:

1 - Safety valve
2 - Test valve
3 - Non-return valve
4 - Pressure reduction valve
5 - Closing valve
6 - Checking fitting
7 - Funnel with outlet connection
8 - Expansion tank

H - Cold water

T - Hot water

graph TD
    A["Return pipe"] --> B["Reactor"]
    B --> C["Energy source"]
    C --> D["Control Valve"]
    D --> E["Output H"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333

Between the water heater and safety valve, no closing valve may be built in because it could impede the function of the safety valve.

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.

The TGRK combined water heater has an additional tubular heat transmitter for heating domestic water using other energy sources (e.g. central heating, solar collector, heat pump). The heating system using an electric heater and the system using the heat transmitter can work simultaneously or individually. The combined water heater is connected to the water pipeline and to an additional energy source.

The inlet of the heating medium into the heat transmitter is labelled with red paint while the outlet is labelled with blue paint.

WARNING: When the temperature of the additional heat source drops and circulation

of water through the transmitter is enabled, uncontrolled reduction of heat can occur in the water heater. When connecting the appliance to other heat sources, the temperature regulation of the additional source must be carried out properly. The temperature switch of the regulation should not be inserted through the connection cable discharger.

The TGRK heater can also be connected to the hot water circulation line. The hot water circulation line allows warm water to always be available everywhere at once.

Connect the return line of hot water to the connection on top of the heater. Before connecting, please remove the plastic cap and unscrew the sealing plug on top of the heater. The return line elements can be purchased at our authorised service providers.

WARNING: The hot water return line must be installed before filling the heater with water. The use of circulation line results in additional heat losses in the water heater.

CONNECTING THE WATER HEATER TO THE POWER SUPPLY NETWORK

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 plate must be removed from the water heater.

Connecting the heater to the power supply network must take place in accordance with the standards for electric appliances. To comply with the national installation regulations, an all poles disconnect switch must be installed between the water heater and the power supply network.

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

Electric installation

CAUTION: Before any intervention into the interior of the water heater, disconnect it from the power supply network!

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 65^ 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. Should you choose to disconnect the power, the water heater should be thoroughly drained before the onset of freezing conditions. Water from the heater is drained through the inlet pipe of the heater. For this purpose, a special fitting (T-fitting) must be mounted between the relief valve and the heater inlet pipe, or a discharge tap. The heater can be discharged directly through the relief valve, by rotating the handle or the rotating valve cap to the same position as for checking the operation. Before discharge, make sure the heater is disconnected from the power supply, and open the hot water on the connected mixer tap. After discharging through the inlet pipe, there is still some water left in the water heater. The remaining water will be discharged after removing the heating flange, through the heating flange opening.

The external parts of the water heater can be cleaned with a mild detergent solution. Do not use solvents and abrasives.

Regular preventive maintenance inspections ensure faultless performance and long life of your heater. The first of these inspections should be carried out by the authorised maintenance service provider about three years from installation in order to inspect the wear of the protective anticorrosion anode and remove the lime coating and sediment as required. The lime coating and sediment on the walls of the tank and on the heating element is a result of quality, quantity and temperature of water flowing through the water heater. The maintenance service provider shall also issue a condition report and recommend the approximate date of the next inspection.

Never try to repair any possible faults of the water heater by yourself, but inform about it the nearest authorised service workshop.

HINWEISE!

graph TD
    A["Tuba kthyese"] --> B["Heat Exchanger"]
    B --> C["Burimi i energjisë"]
    C --> D["Valve with Pump"]
    D --> E["Valve with Valve"]
    E --> F["Valve with Valve"]
    F --> G["Valve with Valve"]
    G --> H["Valve with Valve"]
    H --> I["Valve with Valve"]
    I --> J["Valve with Valve"]
    J --> K["Valve with Valve"]
    K --> L["Valve with Valve"]
    L --> M["Valve with Valve"]
    M --> N["Valve with Valve"]
    N --> O["Valve with Valve"]
    O --> P["Valve with Valve"]
    P --> Q["Valve with Valve"]
    Q --> R["Valve with Valve"]
    R --> S["Valve with Valve"]
    S --> T["Valve with Valve"]
    T --> U["Valve with Valve"]
    U --> V["Valve with Valve"]
    V --> W["Valve with Valve"]
    W --> X["Valve with Valve"]