Dražice OKC 100 NTR Operation And Installation Manual
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Dražice OKC 100 NTR Operation And Installation Manual

Tank type indirect water heaters
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OPERATION AND

INSTALLATION MANUAL

TANK TYPE INDIRECT WATER HEATERS
OKC 100 NTR
OKC 125 NTR
OKC 160 NTR
OKC 200 NTR
OKC 250 NTR
OKC 200 NTRR
OKC 250 NTRR
Družstevní závody Dražice - strojírna s.r.o.
Dražice 69, 294 71 Benátky nad Jizerou
tel.: +420 / 326 370 990
fax: +420 / 326 370 980
e-mail: prodej@dzd.cz
OKC 100 NTR/HV
OKC 125 NTR/HV
OKC 160 NTR/HV
OKC 80 NTR/Z
OKC 100 NTR/Z
OKC 125 NTR/Z
OKC 160 NTR/Z
OKC 200 NTR/Z
OKCV 125 NTR
OKCV 160 NTR
OKCV 180 NTR
OKCV 200 NTR

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Summary of Contents for Dražice OKC 100 NTR

  • Page 1: Installation Manual

    OPERATION AND INSTALLATION MANUAL TANK TYPE INDIRECT WATER HEATERS OKC 80 NTR/Z OKC 100 NTR OKC 100 NTR/HV OKC 100 NTR/Z OKC 125 NTR OKC 125 NTR/HV OKC 125 NTR/Z OKCV 125 NTR OKC 160 NTR OKC 160 NTR/HV OKC 160 NTR/Z...

  • Page 2: Table Of Contents

    CONTENTS TECHNICAL SPECIFICATION OF PRODUCT ....................4 FUNCTION DESCRIPTION ........................4 ADVICE FOR CUSTOMERS ........................4 HOT WATER CONSUMPTION ..................... 4 1.2.1 1.2.2 ENERGY SAVING ......................... 4 EMERGENCY POWER CONSUMPTION ..................5 1.2.3 DESIGN AND GENERAL HEATER DIMENSIONS ................... 6 OPERATION AND FITTING INSTRUCTIONS ....................
  • 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 heaters of NTR and NTRR series are used for HSW water heating in conjunction with another source of heating water, most often a gas boiler, for NTRR types combination of two heating water sources (gas boiler + solar system, heat pump).

  • Page 5: Emergency Power Consumption

    Table 1. HEATING PRESSURE HEAT LOSSES TYPE WATER FLOW LOSS (mbar) kW/24h (l/h) OKC 100 NTR OKC 125 NTR OKC 160 NTR OKC 200 NTR 2 x 33 OKC 250 NTR OKC 200 NTRR OKC 250 NTRR Table 1 - 5 -...

  • Page 6: Design And General Heater Dimensions

    Description of basic parts of the heater – Figure 1, Figure 2, Figure 3, Figure 4. Heater dimensions – (Figure 5, Figure 6, Figure 7, Figure 8) and (Table 2, Table 4, Table 6, Table 8) Technical description: OKC 100 NTR, OKC 125 NTR, OKC 160 NTR, OKC 200 NTR, OKC 250 NTR, OKC 200 NTRR, OKC 250 NTRR...
  • Page 7 Technical description: OKC 100 NTR/HV, OKC 125 NTR/HV, OKC 160 NTR/HV Figure 2 Technical description: OKC 80 NTR/Z, OKC 100 NTR/Z, OKC 125 NTR/Z, OKC 160 NTR/Z, OKC 200 NTR/Z Figure 3 - 7 -...
  • Page 8 Technical description: OKCV125 NTR, OKCV 160 NTR, OKCV 180 NTR, OKCV 200 NTR Figure 4 - 8 -...
  • Page 9 OKC 100 NTR, OKC 125 NTR, OKC 160 NTR OKC 200 NTR, OKC 250 NTR, OKC 200 NTRR, OKC 250 NTRR Figure 5 Figure 6 OKC 100 OKC 125 OKC 160 OKC 200 OKC 200 OKC 250 OKC 250 TYPE...
  • Page 10 TYPE OKC 100 OKC 125 OKC 160 OKC 200 OKC 200 OKC 250 OKC 250 NTRR NTRR CAPACITY MAX. OPERATING OVERPRESSURE IN THE TANK MAX. OPERATING PRESSURE IN THE EXCHANGER ELECTRIC 1 PE-N 230 V/50Hz CONNECTION OF CONTROL ELEMENTS EL. PROTECTION IP 44 MAX.
  • Page 11 OKC 100 NTR/HV, OKC125 NTR/HV, OKC160 NTR/HV Figure 7 OKC 100 NTR/HV OKC 125 NTR/HV OKC 160 NTR/HV 1046 1087 1041 1082 The height from the bottom edge of the heater to the end of the pipe inlet and outlet.
  • Page 12 OKC 100 OKC 125 OKC 160 TYPE NTR/HV NTR/HV NTR/HV CAPACITY MAX. OPERATING OVERPRESSURE IN THE TANK MAX. OPERATING OVERPRESSURE IN THE EXCHANGER ELECTRIC CONNECTION OF CONTROL ELEMENTRS 1 PE-N 230V/50Hz IP PROTECTION IP 44 MAX. HOT WATER TEMPERATURE °C RECOMMENDED HSW TEMPERATURE °C MAX.
  • Page 13 OKC 80 NTR/Z, OKC 100 NTR/Z, OKC 125 NTR/Z, OKC 160 NTR/Z, OKC 200 NTR/Z Upper and lower Upper hinge and Hinge 160,180, 200L support 4 anchor bolts 50-125L Dimensions 450mm and J 2 anchor bolt Check before drilling Figure 8...
  • Page 14 OKC 80 OKC 100 OKC 125 OKC 160 OKC 200 TYPE NTR/Z NTR/Z NTR/Z NTR/Z NTR/Z CAPACITY MAX. OPERATING OVERPRESSURE IN THE TANK MAX. OPERATING PRESSURE IN THE EXCHANGER ELECTRIC CONNECTION OF CONTROL ELEMENTS 1 PE-N 230V/50Hz EL. PROTECTION IP 45 MAX.
  • Page 15 OKCV 125 NTR, OKCV 160 NTR, OKCV 180 NTR, OKCV 200 NTR Figure 9 TYPE OKCV 125 NTR OKCV 160 NTR OKCV 180 NTR OKCV 200 NTR 1046 1235 1187 1287 1008 Table 8 - 15 -...
  • Page 16 OKCV OKC 160 OKCV OKCV TYPE 125 NTR 180 NTR 200 NTR CAPACITY MAX. OPERATING OVERPRESSURE IN THE TANK MAX. OPERATING PRESSURE IN THE EXCHANGER ELECTRIC CONNECTION OF CONTROL 1 PE-N 230 V/50Hz ELEMENTS EL. PROTECTION IP 44 MAX. TEMPERATURE OF HSW °C RECOMMENDED HSW TEMPERATURE °C...

  • Page 17: Operation And Fitting Instructions

    2 OPERATION AND FITTING INSTRUCTIONS 2.1 OPERATING CONDITIONS The tank shall only be used in accordance with the conditions specified on the performance plate and in instructions for electric wiring. Besides legally acknowledged national regulations and standards, also conditions for connection defined in local electric and water works have to be adhered to, as well as the installation and operation manual.

  • Page 18: Plumbing Fixture

    Figure 10 2.3 PLUMBING FIXTURE For potential disconnection of the heater, the service water inlets and outlets must be provided with screw coupling Js 3/4“ (Figure 11, Figure 12, Figure 13). If the hot service water (HSW) distribution is equipped with circulation circuit, the reverse pipe is connected to the inlet identified as CIRCULATION.
  • Page 19 added to the system. No stop valves can be put between the heater and the safety valve. During the assembly, follow the guide provided by the safety equipment manufacturer. It is necessary to check the safety valve each time before putting it into operation. It is checked by manual moving of the membrane from the seat, turning the make-and-break device button always in the direction of the arrow.
  • Page 20 0 - Air outlet valve U – Shut-off valve P1 - Safety valve with backflow flap P2 - Safety valve for heating circuit M - Manometer Z – Test valve Figure 11 V - Drain valve Figure 12 - 20 -...
  • Page 21 Figure 13 Heaters must be provided with a discharge valve mounted on the cold service water inlet to the heater for potential disassembly or repair. When assembling the security equipment, follow Standards. - 21 -...

  • Page 22: Electric Wiring

    Connecting terminals are identified on the terminal board of the heater. 2.4.2 METHODS OF ELECTRONIC THERMOSTAT CONNECTION Electric connection to heaters of the below types: OKC 100 NTR, OKC 125 NTR, OKC 160 NTR, OKC 200 NTR, OKC 200 NTRR, OKC 250 NTRR, OKC 100 NTR/HV, OKC125 NTR/HV, OKC160 NTR/HV...

  • Page 23: Connection Of Indirect Heater To Hot Water Heating System

    - there is voltage on connecting terminal 1 when heater is not heated Figure 15 The touch panel features control of the capillary thermostat to set the desired temperature of water, and the orange control lamp is on when the heater is heating. 2.5 CONNECTION OF INDIRECT HEATER TO HOT WATER HEATING SYSTEM It is recommended to install stop valves on the heating water inlet and outlet (for...

  • Page 24: Putting Out Of Service, Discharge

    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.

  • Page 25: Inspection, Maintenance & Care For The Appliance

    2.8 INSPECTION, MAINTENANCE & CARE FOR THE APPLIANCE During the heating process the water that increases its volume during the heating must drip off the safety valve outlet (in non-pressurised connection this water drips off the combination faucet valve). In full heating (about 65 C) the volumetric water gain is approx.

  • Page 26: Most Frequent Function Failures And Their Causes

    2.9 MOST FREQUENT FUNCTION FAILURES AND THEIR CAUSES Potential failures – Table 12 FAILURE SYMPTOM SOLUTION Temperature of water is • defective thermostat not corresponding with the set value Water is constantly • • LED is not on input pressure is too high dripping off the safety valve •...

  • Page 27: Tempeature Setting

    PANEL OF OKC NTR,R & OKC NTR / HV HEATERS of 100 up to 250 l capacity Figure 17 3.1.2 TEMPEATURE SETTING Water temperature is set by turning the thermostat knob. The desired symbol is adjusted against the fixed point on the control panel - Figure 18. Lower temperature range Upper temperature range limit (about 5°C)

  • Page 28: Important Notices

    Regulation limited To block the setting Figure 19 To limit regulation off the thermostat knob (it will be tough at first) and you will find two cylindrical pins Ø2,15mm on the back side of the knob pull off one pin and insert it to the corresponding hole of the selected maximum temperature. put the knob back on (to the stop).

  • Page 29: Disposal Of Packaging Material And Functionless Product

    4.2 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.

This manual is also suitable for:

Okc 100 ntr/hvOkc 100 ntr/zOkc 125 ntrOkc 125 ntr/hvOkc 125 ntr/zOkcv 125 ntr ... Show all

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