Drazice 250 운영 및 설치 매뉴얼 - 페이지 15

{카테고리_이름} Drazice 250에 대한 운영 및 설치 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Drazice 250 16 페이지. Indirect water heater

2.5 HEATER CLEANING AND ANODE ROD EXCHANGE

Repetitive water heating causes limestone sediment on both the enamelled tank walls and chiefly the

flange lid. The sedimentation depends on the hardness of water heated, its temperature, and amount of

hot water consumed.

We recommend checking and cleaning the tank from scale and eventual replacement of

the anode rod after two years of operation.

The anode life is theoretically calculated for two years of operation; however, it changes with water

hardness and chemical composition in the place of use. Based on such an inspection, the next term of

anode rod exchange may be determined. Have the company in charge of service affairs clean and exchange

the anode. When discharging water from the heater, the combination faucet hot water valve must be open

in order to avoid creating underpressure that would prevent water discharge.

To prevent the occurrence of bacteria (e.g. Legionella pneumophila) within stack heating it

is recommended, if absolutely necessary, to increase the temperature of hot service water

(HSW) periodically for a transitional period of time to at least 70°C. It is also possible to

make use of another way of disinfecting HSW.

- Magnesium anode

- contact thermometer

When ordering spare parts, give part name, type, and type number from the heater label.

3.1 IMPORTANT NOTICES

Without a proof issued by a professional company about performed electrical and

plumbing fixture the warranty shall be void.

It is necessary to check the protective magnesium anode periodically and replace it if

necessary.

No stop valves can be put between the heater and the safety valve.

All outlets of hot water must be equipped with combination faucets.

Before the first filling of water heater it is recommended to tighten the nuts of the flange

joint of the tank..

- 15 -