Gorenje TG 30 N User manual

TG 30 - 200 N

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Dear buyer, we thank you for purchase of our product.
Prior to installation and f rst use of the electric water heater, please carefully read
these instructions.
This water heater has been manufactured in compliance with the relevant standards
and tested by the relevant authorities as indicated by the Safety Certif cate and the
Electromagnetic Compatibility Certif cate. The technical characteristics of the product are
listed on the label aff xed between the inlet and outlet pipes. The installation must be carried
out by qualif ed 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 the authorised maintenance service provider.
BUILDING-IN
The water heater shall be built-in as close as possible to the outlets. When installing the
water heater in a room with bathtub or shower, take into account requirements def ned in IEC
Standard 60364-7-701 (VDE 0100, Part 701). It has to be f tted to the wall using appropriate
rag bolts with minimum diameter of 8 mm. The wall with feeble charging ability must be
on the spot where the water heater shall be hanged suitably reinforced. The water heater
may be f xed upon the wall only vertically. We recommend the distance between the water
heater and the ceiling is large enough to allow simple replacement of the MG anode (see
dimension G in the Installation Drawing), in order to avoid unnecessary dismounting of the
heater during the servicing intervention.
TECHNICAL PROPERTIES OF THE APPLIANCE
Type TG 30 N TG 50 N TG 80 N TG 100 N TG 120 N TG 150 N TG 200 N
Model TG 30 N TG 50 N TG 80 N TG 100 N TG 120 N TG 150 N TG 200 N
Volume [ l ] 30 50 80 100 120 150 200
Rated pressure [ MPa] 0,6
Weight / Filled with water [ kg ] 20/50 24/74 30/110 34/134 38/158 44/194 70/270
Anti-corrosion protection of tank Enameled / Mg Anode
Connected power [ W ] 2000
Voltage [ V~ ] 230
Heating time to 75°C 1) [ h ] 1 05 1 55 3 05 3 55 4 35 5 45 7 40
Quantity of mixed water at 40°C [ l ] 50 89 145 200 236 298 399
Energy consumption 2) [kWh/24h ] 0,90 1,32 1,85 2,20 2,60 3,20 2,80
1) Time for heating of the whole volume of heater with electric immersion heater by entering temperature of
cold water from water supply 15°C.
2) Energy consumption to maintain stable temperature of water in the water heater 65°C at surrounding
temperature 20°C, measured according to DIN 44532.

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ABCDEFG
TG 30 N 459 275 173 - 454 461 80
TG 50 N 561 365 185 - 454 461 130
TG 80 N 766 565 190 - 454 461 180
TG 100 N 926 715 200 - 454 461 260
TG 120 N 1081 865 205 - 454 461 260
TG 150 N 1296 1065 220 - 454 461 260
TG 200 N 1505 1050 444 800 500 507 260
Connection and installation dimensions of the water heater [mm]
CONNECTION TO THE WATER SUPPLY
The water heater connections for the in-f owing and out-f owing water are colour-coded. The
connection for the supply of cold water is coloured blue, while the hot water outlet is coloured
red.
The water heater may 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 purchased 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 an instantaneous 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 f tted with a return 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. 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
the 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 located in the 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 return
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 relief valve, periodical inspections of the relief
valve must be carried out by the user. To check the valve, you should open the outlet of the
return 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.

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Closed (pressure) system Open (non-pressure) system
Legend:
1 - Safety valve 6 - Checking f tting
2 - Test valve 7 - Funnel with outlet connection
3 - Non-return valve
4 - Pressure reduction valve H - Cold water
5 - Closing valve T - Hot water
Between the water heater and return safety valve no closing valve may be built-in
because with it the function of return safety valve would be impeded.
The water heater may be connected to the water network in the house without reduction
valve if the pressure in the network is lower than 0.5 MPa (5 bar). If the pressure exceeds
0.5 MPa (5 bar), a reduction valve must be installed. Prior to the electric connection the
water heater must obligatorily be f lled with water. By f rst f lling the tap for the hot water upon
the mixing tap must be opened. When the heater is f lled with water, the water starts to run
through the outlet pipe of the mixing tap.
CONNECTION OF THE WATER HEATER TO THE ELECTRIC NETWORK
Before connecting to power supply network, install a power supply cord in the water heater,
with a min. diameter of 1,5 mm2 (H05VV-F 3G 1,5 mm2). For it the protection plate must be
removed from the water heater.
The connection of water heater to the electric network must be performed according to
standards for electric installation. Install a disconnect switch (separating all poles from the
power supply network) between the water heater and the permanent power connection, in
compliance with the national regulations.

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Legend:
1 - Thermostat and
bipolar thermal fuse
2 - Electric heater
3 - Connection terminal
4 - Pilot lamp
L - Live conductor
N - Neutral conductor
- Earthing conductor Electric installation
CAUTION: Prior to each reach in the inner of the water heater it must absolutely be
disconnected from the electric network!
USE AND MAINTENANCE
After the connection to water and electric network the water heater is ready for use. Temperature
of water in the appliance is automatically controlled by the thermostat which is adjusted by the
manufacturer. The adjustment can be modif ed by turning of the adjustment screw upon the
thermostat in the inner of the water heater. The adjustment range reaches between 20°C and
75°C. We do not recommend any change of the manufacturers adjustment, thus this ensures
the most economical consumption of electric energy and the smallest excretion of lime-stone.
The operation of electric immersion heater is shown by pilot light. 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 heater shall not be used during a longer time, it must be disconnected from the
electric network. At any risk for freezing of water in the water heater, the water must be emptied
from it. Water is discharged from the heater via the inlet pipe. To this purpose, a special f tting
(T-f tting) shall 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 same position as for checking the operation. Before discharge, make
sure the heater is disconnected from the power supply, 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 f ange, through the
heating f ange opening.
The external parts of the water heater may 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 f rst 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 product of quality,
quantity and temperature of water f owing 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.

06/2008
382 012 797
180668
Gorenje