Tesy GCU 1520 - Инструкция по эксплуатации - Страница 10

10

Instructions for use and maintenance

EN

ATTENTION! In order to prevent injury to user and 

third persons in the event of faults in the hot water 

supply system, the appliance must be mounted in premises 

outfitted with floor hydro insulation and sewer drainage. 

Don't place objects, which are not waterproof under the 

appliance under any circumstances. In the event of mounting 

the appliance in premises without floor hydro insulation, a 

protective tank with a sewer discharge drainage must be 

placed under the appliance. 

Notice: the set does not include a protective tub and the 

user must select the same.

2. 

Water heater connection to the water supply system

Fig.4a

 - installation scheme above sink

Fig.4b

 - installation scheme under sink

Where: 1 – input pipe, 2 – safety valve (0.8 MPa), 3 – 

reduction valve (if the water supply pressure exceeds 0,6 

MPa), 4 – stop valve, 5 – bell-mouth discharge to the sewer, 

6 – hose; 
7 - Drain water tap.
Upon connecting the water heater to the water supply 

system, take care of the indicative color markings /rings/ of 

the pipes:  

BLUE

 -  for cold /in-flowing/ water,  

RED

 -  for hot /out-flowig/ water.

The mounting of the safety return-valve supplied with the 

water heater is obligatory. The safety return-valve must 

be installed on the cold water supply pipe, according to 

the arrow stamped on its body that indicates the supplied 

water direction.  

Exception: If the local regulations (norms) require the 

usage of another protection valve or mechanism (in 

accordance with EN 1487 or EN 1489), then it must be bought 

additionally. For mechanisms operating in accordance with EN 

1487 the announced operational pressure must be no more 

than 0.7 MPa. For other protection valves, the pressure at which 

they are calibrated must be 0.1 MPa lower than the one 

marked on the appliance’s sign. In these cases the safety valve 

which the appliance is supplied with should not be used

.

ATTENTION! Other type of stopping armature is not 

allowed between the protection return valve (the 

protective device) and the appliance.

ATTENTION! Any other /old/ safety return-valves may 

lead to a failure of your appliance, therefore they 

must be removed. 

ATTENTION! Fixing the safety return-valve to threads 

longer than 10 mm is not allowed, as it could 

damaged the valve and could make the use of your 

appliance dangerous. 

ATTENTION! The safety valve and the pipe between 

the valve and the water heater must be protected from 

freezing. During hose draining - its free end must be always 

open to the atmosphere (not to be immersed). Make sure that 

the hose is also protected from freezing.

The boiler is filled with water by opening the tap on the cold 

water supply system and the tap on the hot water mixing 

faucet. After the filling process is complete, a constant 

stream of water should flow from the water-mixing faucet. 

Now you can shut the hot water tap on the mixing faucet.
When you must empty the water heater, you should first cut 

it off the power supply. 

Draining procedure for boilers designed to be installed 

ABOVE SINKS: 

1. 

First shut the cold water supply valve  

2. 

Open the hot water valve on the mixing-faucet 

3. 

The water tap 7 (

fig 4a

) must be opened to drain the 

water from water tank. If there is no such tap build in the 

pipe line, than the water can be drain directly from inlet 

pipe of water tank after when you disconnect it from 

water main

IMPORTANT: When draining the boiler, take measures 

to prevent damages caused by the flowing water.

Draining procedure for boilers designed to be installed 

UNDER SINKS: 

1. 

Switch the boiler off the power supply network.

2. 

Dismantle the connecting water fittings from the 

boiler.

3. 

Disassemble the boiler from its installation place, turn 

it so the pipes point to the floor and pour the water in a 

vessel you have prepared for the purpose. Wait until all 

the water drains out of the boiler.

In case that the pressure in the water mains is over the value 

pointed out in the above paragraph I, then it is necessary 

to assemble a pressure reduce valve, otherwise the water 

heater would not function properly. The Manufacturer does 

not assume any liability for problems arising out of the 

appliance’s improper use.

3. 

Water heater's electrical connection 

(fig.3)

 ATTENTION! Before you switch the power supply, 

make sure the appliance is full of water.

3.1. 

Models fit with power supply cord combined with 

a plug

 shall be plugged in a socket. The boiler can be 

disconnected from the power supply by unplugging.

 ATTENTION! The wall-plug must be properly 

connected to a separate electrical circle that is 

provided with a protector. It must be earthed.

3.2. 

Water heaters  fitted with a supply cord without a 

plug

The appliance has to be connected to a separate electricity 

circuit of the stationary electrical wiring.The connecting has 

to be constant- with no plug contacts. The circuit has to be 

supplied with a safety fuse (16A) (20A for power > 3700W) 

and with inbuilt device to ensure disconnection of all pole 

pieces in the conditions of over-voltage from category III.