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APPLIANCE - HOT WATER DISTRIBUTION

2.6 FIRST COMMISSIONING

After connecting the appliance to the water supply, the hot water heating system, the

electric network, and after testing its safety valve (based on the valve manual attached), the

appliance may be put into operation. Before opening the power supply, the tank must be

filled with water. The process of first heating must be executed by licensed professional who

has to check it. Both the hot water outlet pipe and safety armature parts may be hot.

During the heating process the pressurised connection water that increases its volume due

to heating must drip off the safety valve. In non-pressurised connection water drips off the

overflow combination faucet. When heating is finished, the set temperature and the actual

temperature of consumed water should be roughly equal. After connecting the appliance to

the water main and electrical power system, and after checking the safety valve (following

the instructions attached to the valve), the appliance can be put into operation.

Hot water

Cold water

Heating circuit

Return circuit

Figure 6

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