OTG120SLSIMC6 - Water heater GORENJE - Free user manual and instructions

Product Type	Electric Water Heater
Model	OTG120SLSIMC6
Volume	120 liters
Dimensions (H x W x D)	1300 x 900 x 430 mm
Weight (Empty)	41 kg
Weight (Filled)	161 kg
Rated Pressure	0.6 MPa (6 bar)
Anti-corrosion	Enamelled tank with Magnesium Anode
Connected Power	2000 W
Voltage	230 V~
Protection Class	I
Degree of Protection	IP24
Heating Time to 75°C	Approximately 7 hours 15 minutes
Mixed Water at 40°C	236 liters
Energy Consumption (standby)	1.79 kWh/24h
Water Connection	Closed-circuit pressure system or open-circuit gravity system
Thermostat Range	25°C to 75°C
Safety Valve	Required (relief valve) with outlet for atmospheric pressure
Installation	Wall-mounted vertically, screw diameter min. 8 mm
Electrical Connection	Power cord min. 1.5 mm² (H05VV-F 3G 1.5 mm²), all-poles disconnect switch required
Maintenance	Inspect protective anode and remove lime every 2 years by authorized service
Freeze Protection	Set thermostat to "*" position (approx. 10°C) or drain if power off

Frequently Asked Questions - OTG120SLSIMC6 GORENJE

How do I install the Gorenje OTG120SLSIMC6 water heater?

The heater must be installed vertically on a wall with screws of min. diameter 8 mm. Install it as close as possible to outlets. In rooms with bathtub or shower, follow IEC 60364-7-701. Ensure wall load-bearing capacity is sufficient.

What are the water connection options for this water heater?

You can use a closed-circuit pressure system for multiple outlets or an open-circuit gravity system for a single outlet. The pressure system requires a safety valve; the gravity system requires a non-return valve.

How do I set the desired water temperature?

Turn the thermostat knob on the front cover to select a temperature between 25°C and 75°C. The 'e' position (about 55°C) is most economical.

What does the pilot light indicate?

The pilot light indicates that the electric heating element is operating. It turns on when the heater is heating and off when the set temperature is reached.

How can I protect the water heater from freezing?

If not using for a long time, keep power on and set thermostat to '*' position to maintain about 10°C. If disconnecting power, drain the heater completely via the inlet pipe to avoid freeze damage.

How do I clean the water heater?

Clean the external parts with a mild detergent solution. Do not use solvents or abrasives. Internal cleaning (lime removal) should be done by an authorized service provider.

How often should maintenance be performed?

The first maintenance inspection should be about two years after installation. Check the protective anticorrosion anode and remove lime or sediment. Subsequent inspections based on condition report.

Can I repair the water heater myself?

No, do not attempt repairs. All repairs and maintenance inside the heater must be carried out by an authorized maintenance service provider.

What safety devices are required for installation?

A safety valve (relief valve) must be installed on the supply pipe to prevent pressure exceeding nominal by more than 0.1 MPa. Also, an all-poles disconnect switch between heater and power supply.

What are the dimensions and weight of the OTG120SLSIMC6?

Dimensions: 1300 mm (height) x 900 mm (width) x 430 mm (depth). Empty weight 41 kg, filled weight 161 kg.

USER MANUAL OTG120SLSIMC6 GORENJE

White gas stove with control panel and two red connectors at base (no visible text or symbols)

OTG 30-120 SLIM

SIMPLICITY

Návod k obsluze 3

Návod na obsluhu 7

Instructions for Use 43

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Sistemi i mbyllur (me presion)

graph TD
    A["Container Tank"] --> B["T Valve"]
    A --> C["H Valve"]
    B --> D["Directional Flow Arrow"]
    C --> D
    D --> E["Output"]

Sistemi i hapur (pa presion)

Legjenda:

1 - Ventili sigurues
2 - Ventili provues
3 - Ventili jo-kthyes (ireverzibil)
4 - Ventili reduktues i shtypjes
5 - Ventili mbyllës

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PIESLĚGŠANA ELEKTROTÍKLAM

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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 APPLIANCE IS NOT INTENDED FOR USE BY PERSONS (INCLUDING CHILDREN) WITH REDUCED PHYSICAL, SENSORY OR MENTAL CAPABILITIES, OR LACK OF EXPERIENCE AND KNOWLEDGE, UNLESS THEY HAVE BEEN GIVEN SUPERVISION OR INSTRUCTIONS CONCERNING THE USE OF THE APPLIANCE BY A PERSON RESPONSIBLE FOR THEIR SAFETY. CHILDREN SHOULD BE SUPERVISED TO ENSURE THAT THEY DO NOT PLAY WITH THE APPLIANCE.

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		OTG 30 SLIM	OTG 50 SLIM	OTG 65 SLIM	OTG 80 SLIM	OTG 100 SLIM	OTG 120 SLIM
Volume	[I]	30	50	65	80	100	120
Rated pressure	[MPa (bar)]	0,6 (6)
Weight / Filled with water	[kg]	19/49	24/74	28/93	31/111	36/136	41/161
Anti-corrosion of tank		enamelled & Mg Anode
Connected power	[W]	2000
Voltage	[V~]	230
Protection class		I
Degree of protection		IP24
Heating time to 75 °C1)	[h]	105	155	230	305	355	435
Quantity of mixed water at 40 °C	[l]	50	89	120	145	200	236
Energy consumption2)	[kWh/24h]	0,69	0,94	1,12	1,30	1,54	1,79

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.

A B C
OTG 30 SLIM	510	310	235
OTG 50 SLIM	690	470	250
OTG 65 SLIM	820	605	245
OTG 80 SLIM	950	735	245
OTG 100 SLIM	1125	900	255
OTG 120 SLIM	1300	900	430

Connection and installation dimensions of the water heater [mm]

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"] --> B
    H["X"] --> B
    I["X"] --> B
    J["1"] --> C
    K["2"] --> C
    L["3"] --> C
    M["4"] --> C
    N["5"] --> C
    O["6"] --> C
    P["7"] --> C
    Q["Turb H"] --> E

Closed (pressure) system

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

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.

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.

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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 - Thermostat
2 - Thermal cut-out
3 - Electric heating element
4 - Pilot lamp
5 - Connection terminal

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 knob of thermostat at the front side of the protecting cover, the wished temperature of water between 25 °C and 75 °C is chosen. We recommend the adjustment of the knob to the position "e". Such an adjustment is the most economic; with it the temperature of water shall be about 55 °C, the excretion of lime-stone and thermal loss shall be smaller as by adjustment to higher temperature. The operation of electric immersion heaters is shown by pilot light.

When the heater shall not be used during a longer time, its contents must be protected against freezing so that the power supply (electricity) shall not be switched off, but the thermostat knob shall be adjusted to the position "*". With this adjustment the heater shall maintain the water temperature by about 10 °C.

Should you choose to disconnect the power, the water heater should be thoroughly drained before the onset of freezing conditions. Water is discharged from heater via the inlet pipe. 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 two 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.