Drazice OKC 300 NTR/HP Operating And Installation Manual - Page 9

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NOTICE

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.

11.

CONNECTING A HEATER TO A HEATING SYSTEM

The heater is placed on the ground, next to the heating source, or in its vicinity. The heating circuit is connected to

marked inputs and outputs of the heater exchanger; the deaerating valve is mounted in the highest place. It is

necessary to install a filter into the circuit in order to protect the pumps, the three-way valve, and backflow flaps, and

the exchanger from sedimentation. It is recommended to flush the heating circuit before the assembly. All wiring

connections must be properly insulated from heat. If the system works with priority heating of HSW using a three-

way valve, always follow the installation instructions of the three-way valve's manufacturer.

An example of a group heater connection for steady hot water consumption from all tanks using Tichelmann's

method

Fig. 3

OV – Heating water

SV - Cold water

C – Circulation

Disposal of packaging material and functionless product

A service fee for providing return and recovery of packaging

material has been paid for the packaging in which the water

heater was delivered.

The service fee was paid pursuant to Act No. 477/2001 Coll., as

amended, at EKO-KOM a.s. The client number of the company is

F06020274. Take the water boiler packages to a waste disposal

place determined by the town. When the operation terminates,

disassemble and transport the discarded and unserviceable heater

to a waste recycling centre (collecting yard), or contact the

manufacturer.

TUV - Hot service water

1 – back pressure valve

2 – Pump

2-2014