Drazice OKC 250 NTR/HP Operating And Installation Manual
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Drazice OKC 250 NTR/HP Operating And Installation Manual

Indirect water heater
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OPERATING and

INSTALLATION MANUAL

INDIRECT WATER HEATER
Družstevní závody Dražice-strojírna s.r.o.
(Works Cooperative - Dražice – Machine Plant, Ltd.)
Dražice 69, 294 71 Benátky nad Jizerou
tel.: +420 / 326 370 911
fax: +420 / 326 370 980
e-mail: export@dzd.cz
OKC 250 NTR/HP
OKC 300 NTR/HP
OKC 400 NTR/HP
OKC 500 NTR/HP
OKC 750 NTR/HP
OKC 1000 NTR/HP

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Summary of Contents for Drazice OKC 250 NTR/HP

  • Page 1: Installation Manual

    OPERATING and INSTALLATION MANUAL INDIRECT WATER HEATER OKC 250 NTR/HP OKC 300 NTR/HP OKC 400 NTR/HP OKC 500 NTR/HP OKC 750 NTR/HP OKC 1000 NTR/HP Družstevní závody Dražice-strojírna s.r.o. (Works Cooperative - Dražice – Machine Plant, Ltd.) Dražice 69, 294 71 Benátky nad Jizerou tel.: +420 / 326 370 911...

  • Page 2: Table Of Contents

    CONTENTS TECHNICAL SPECIFICATION OF PRODUCT ....................4 FUNCTION DESCRIPTION ........................4 DESIGN AND GENERAL HEATER DIMENSIONS .................. 4 1.2.1 PRODUCT DESCRIPTION ......................4 1.2.2 TECHNICAL DATA ........................5 OPERATION AND FITTING INSTRUCTIONS ....................12 PUTTING THE HEATER INTO OPERATION ..................12 CONNECTING A HEATER TO A HOT WATER DISTRIBUTION ............
  • Page 3 READ CAREFULLY THE BELOW INSTRUCTIONS PRIOR TO THE INSTALLATION THE HEATER! Dear Customer, The Works Cooperative of Dražice – Machine Plant, Ltd., would like to thank you for your decision to use a product of our brand. With this guide, we will introduce you to the use, construction, maintenance and other information on electrical water heaters.

  • Page 4: Technical Specification Of Product

    1 TECHNICAL SPECIFICATION OF PRODUCT 1.1 FUNCTION DESCRIPTION Indirect stationary heater OKC 250 (300, 400, 500, 750, 1000) NTR / HP is designed for water heating in conjunction with a heat pump. Reheat can be carried out by the electric heater TJ 6 / 4“. 1.2 DESIGN AND GENERAL HEATER DIMENSIONS 1.2.1 PRODUCT DESCRIPTION The heater vessel is welded from a steel plate and as a whole is protected by enamel resistant to hot water.

  • Page 5: Technical Data

    1.2.2 TECHNICAL DATA OKC 250 OKC 300 OKC 400 OKC 500 OKC 750 OKC 1000 NTR/HP NTR/HP NTR/HP NTR/HP NTR/HP NTR/HP Capacity Height 1541 1580 1591 1921 2050 2083 Diameter 1090 Maximum weight without water Maximum operating pressure in the tank Maximum operating overpressure in the exchanger...
  • Page 6 OKC 250 NTR/HP Figure 1 - 6 -...
  • Page 7 OKC 300 NTR/HP Figure 2 - 7 -...
  • Page 8 OKC 400-500 NTR/HP Figure 3 - 8 -...
  • Page 9 OKC 750 NTR/HP Figure 4 - 9 -...
  • Page 10 OKC 1000 NTR/HP Figure 5 - 10 -...
  • Page 11 - 11 -...

  • Page 12: Operation And Fitting Instructions

    2 OPERATION AND FITTING INSTRUCTIONS 2.1 PUTTING THE HEATER INTO OPERATION After connecting the heater to the water distribution system, hot water heating system, respectively electrical power system and after checking the safety valve (following the instructions attached to the valve) the heater can be put into operation.

  • Page 13: Plumbing Fixture

    The heater’s cold water inlet must be fitted with a T-fitting with a discharge valve for any discharge of water from the heater Each individually lockable heater must also be equipped at the hot water inlet with a test cock, check valve, safety valve and level gauge. 2.3 PLUMBING FIXTURE Power water connects to pipes with 3/4”...

  • Page 14: Connecting A Heater To A Heating System

    Required pressures – Table 33. We recommend that the hot water distribution from the heater was as short as possible to minimise heat losses. Heaters must be provided with a discharge valve ADMISSIBLE SAFETY VALVE OPERATING MAXIMUM mounted on the cold service water inlet to the STARTING OVER- PRESSURE IN...

  • Page 15: Heater Cleaning And Anode Rod Exchange

    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.

  • Page 16: Installation Regulations

    3.2 INSTALLATION REGULATIONS Both the electric and water installation must follow and meet the requirements and regulations relevant in the country of use! 3.3 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.

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