Gorenje GBK 80 LN RN - Инструкция по эксплуатации - Страница 5

 Closed-circuit (pressure) system           

          Open-circuit (gravity) system 

Key:  
 

1 - Safety valve  

2 - Test valve  

3 - Non-return valve  

4 - Pressure-reducing valve  

5 - Stop valve  

6 - Testing piece  

7 - Funnel outlet to the drain 

H - Cold water 

T - Hot water 

Combined GBK water heater operates in the same manner as the electrical GB water heater 
however, it has also been fitted with the cooling water heat exchanger allowing the sanitary 
water to be heated by alternative sources of energy (e.g. central heating, solar collector or heat 
pump). The two heating systems - electrical heating element and heat exchanger - can operate 
singly or concurrently. While the combined water heater is connected to the water supply system 
in the same manner as the GB model, the connection to the additional energy source has to be 
made as well. The inlet of the heating medium into the cooling water heat exchanger is colour-
coded blue, while the outlet is colour-coded red. GBK water heaters can also be connected to 
the return hot water pipe. The return hot water pipe makes hot water instantly available at all 
points of use simultaneously. The return pipe can be connected to the inlet point at the top of the 
water heater after removing the plastic cap and unscrewing the stopper. The return pipe 
elements can also be purchased at any authorised dealer of our products at a later stage. 

POWER CONNECTION 

 
The power lead must be fitted to the water heater prior to connecting the heater to the power 
supply. In order to do this the plastic protective cover must be taken off by removing the plate 
inserted into the front side of the cover. The plate can be released by carefully inserting a flat 
screwdriver into the fissure between the plate and the protective cap, first next to the thermostat 
knob and then into the fissure opposite the knob. Once loose, the plate can subsequently be 
removed by hand. In order to remove the plastic protective cover, the thermostat knob must also 
be removed and both fixing screws undone. The protective cover can be re-fitted following the 
same procedure in reverse. The water heater must be connected to the power supply in 
accordance with the requirements set out in the relevant standards applying to the electrical 
installations. For safety reasons, a switch should be installed on the lead connecting the heater 
to the power grid, i.e. a switch disconnecting both power supply poles with the minimum of 3 mm 
distance between the open contacts. 

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