Nibe Drazice OKC 100 NTR Operating And Installation Manual
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Nibe Drazice OKC 100 NTR Operating And Installation Manual

Indirect hot water tanks
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OPERATING AND
INSTALLATION MANUAL
INDIRECT HOT WATER TANKS
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 / 326 370 911
fax: +420 / 326 370 980
e-mail:
export@dzd.cz
OKC 100 NTR/HV
OKC 125 NTR/HV
OKC 160 NTR/HV
OKC 100.1 NTR/HV
OKC 125.1 NTR/HV
OKC 80 NTR/Z
OKC 100 NTR/Z
OKC 125 NTR/Z
OKC 160 NTR/Z
OKC 200 NTR/Z

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Summary of Contents for Nibe Drazice OKC 100 NTR

  • Page 1 OPERATING AND INSTALLATION MANUAL INDIRECT HOT WATER TANKS OKC 100 NTR OKC 100 NTR/HV OKC 80 NTR/Z OKC 125 NTR OKC 125 NTR/HV OKC 100 NTR/Z OKC 160 NTR OKC 160 NTR/HV OKC 125 NTR/Z OKC 200 NTR OKC 160 NTR/Z OKC 250 NTR OKC 100.1 NTR/HV OKC 200 NTR/Z...

  • Page 2: Table Of Contents

    CONTENTS PRODUCT TECHNICAL SPECIFICATION ....................... 4 FUNCTION DESCRIPTION ........................4 ADVICE FOR CUSTOMERS ........................4 1.2.1 HOT WATER CONSUMPTION ..................... 4 1.2.2 ENERGY SAVING ......................... 4 1.2.3 EMERGENCY POWER CONSUMPTION ..................5 DESIGN AND GENERAL HEATER DIMENSIONS ................... 5 OPERATION AND FITTING INSTRUCTIONS ....................17 OPERATING CONDITIONS ........................
  • Page 3 CAREFULLY READ THIS MANUAL BEFORE INSTALLING THE WATER HEATER! Dear Customer, Družstevní závody Dražice - strojírna s.r.o., 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: Product Technical Specification

    1 PRODUCT TECHNICAL SPECIFICATION FUNCTION DESCRIPTION Indirect stationary NTR and NTRR series TANKS are used to prepare HSW in combination with another hot water supply, mostly gas boiler; in NTRR types in combination of two hot water sources (gas boiler + solar system, heat pump).

  • Page 5: Emergency Power Consumption

    1.2.3 EMERGENCY POWER CONSUMPTION If no heated water is taken from the tank, a small amount of heat leaks. This loss is measured for a period of 24 hours at the temperature of 65 °C in the heater, and at 20 °C in its ambient area.
  • Page 6 Technical description: OKC 100 NTR, OKC 125 NTR, OKC 160 NTR, OKC 200 NTR, OKC 250 NTR, OKC 200 NTRR, OKC 250 NTRR Figure 1 Technical description: OKC 100 NTR/HV, OKC 125 NTR/HV, OKC 160 NTR/HV OKC 100.1 NTR/HV, OKC 125.1 NTR/HV Figure 2 The thermometer is only for OKC 100 - 160 NTR/HV.
  • Page 7 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 OKC 100 NTR, OKC 125 NTR, OKC 160 NTR Figure 4  3/4" outer OKC 100 NTR OKC 125 NTR OKC 160 NTR  1" outer 1067 1255  3/4" inner  1/2" inner 1058 1246 Table 2 - 8 -...
  • Page 9 OKC 200 NTR, OKC 250 NTR, OKC 200 NTRR, OKC 250 NTRR Figure 5  3/4" outer OKC 200 NTR OKC 200 NTRR OKC 250 NTR OKC 250 NTRR  1" outer 1412 1412 1595 1595  3/4" inner 1275 1275 1455 1455...
  • Page 10 OKC 100 OKC 125 OKC 160 OKC 200 OKC 200 OKC 250 OKC 250 TYPE NTRR NTRR VOLUME MAX OPERATING OVERPRESSURE IN THE TANK MAX OPERATING OVERPRESSURE IN THE EXCHANGER ELECTRICAL CONNECTION 1 PE-N ~ 230V/50Hz OF CONTROL ELEMENTS EL. PROTECTION IP 42 MAX OPERATING TEMPERATURE IN THE...
  • Page 11 OKC 100 NTR/HV, OKC 125 NTR/HV, OKC 160 NTR/HV  3/4" outer  3/4" outer  3/4" outer  3/4" outer  3/4" outer Figure 6  1/2" inner OKC 100 NTR/HV OKC 125 NTR/HV OKC 160 NTR/HV 1067 1090 1057 1080 Table 5...
  • Page 12 OKC 100.1 NTR/HV, OKC 125.1 NTR/HV  3/4" outer  3/4" outer  3/4" outer  3/4" outer  3/4" outer  1/2" inner OKC 100 NTR/HV OKC 125 NTR/HV 1060 1050 Figure 7 Table 6 - 12 -...
  • Page 13 OKC 100 OKC 125 OKC 160 OKC 100.1 OKC 125.1 TYPE NTR/HV NTR/HV NTR/HV NTR/HV NTR/HV VOLUME MAX OPERATING OVERPRESSURE IN THE TANK MAX OPERATING OVERPRESSURE IN THE EXCHANGER ELECTRICAL CONNECTION 1 PE-N ~ 230 V/50Hz OF CONTROL ELEMENTS EL. PROTECTION IP 42 MAX OPERATING °C...
  • Page 14 OKC 80 NTR/Z, OKC 100 NTR/Z, OKC 125 NTR/Z Figure 8 OKC 160 NTR/Z, OKC 200 NTR/Z  3/4" outer  1" outer Figure 9  3/4" inner  * in OKC 80 NTR/Z - 3/4" outer - 14 -...
  • Page 15 OKC 80 NTR/Z OKC 100 NTR/Z OKC 125 NTR/Z OKC 160 NTR/Z OKC 200 NTR/Z 1067 1255 1300 Table 8 - 15 -...
  • Page 16 OKC 80 OKC 100 OKC 125 OKC 160 OKC 200 TYPE NTR/Z NTR/Z NTR/Z NTR/Z NTR/Z VOLUME MAX OPERATING OVERPRESSURE IN THE TANK MAX OPERATING OVERPRESSURE IN THE EXCHANGER ELECTRICAL CONNECTION 1 PE-N ~ 230V/50Hz OF CONTROL ELEMENTS EL. PROTECTION IP 44 MAX OPERATING °C...

  • Page 17: Operation And Fitting Instructions

    2 OPERATION AND FITTING INSTRUCTIONS OPERATING CONDITIONS The tank shall only be used in accordance with the conditions specified on the power plate and in instructions for electric wiring. Besides the legally acknowledged national regulations and standards, also conditions for connection defined in the local electric and water works have to be adhered to, as well as the installation and operation manual.
  • Page 18 Mount the anchors by the dimensional drawing (Figure 8, Figure 9) in a 450 mm spacing. Double check the torque of the suspension bolts on the heater and suspend the heater. Using the detent support in the bottom part of the heater make sure it runs in parallel with the wall (Figure 10) in 80-125 L heaters . Figure 10 Figure 11 - 18 -...

  • Page 19: Plumbing Fixture

    PLUMBING FIXTURE Connecting tanks to plumbing fixtures is shown in (Figure 12, Figure 13, Figure 14, Figure 15, Figure 16, Figure 17). For potential disconnection of the tank, utility water inlets and outlets must be provided with Js 3/4" screw coupling. If the hot utility water (HUW) distribution is equipped with circulation circuit, the reverse pipe is connected to the inlet identified as CIRCULATION.
  • Page 20 ACCEPTABLE OPERATING OVER- SAFETY VALVE STARTING MAX COLD WATER PRESSURE PRESSURE OF THE WATER PRESSURE [MPa] IN PIPING [MPa] HEATER [MPa] up to 0,48 Table 10 CONNECTING A TANK TO A WATER AND HEATING SYSTEM OKC 100 NTR, OKC 125 NTR, OKC 160 NTR Figure 12 - 20 -...
  • Page 21 OKC 200 NTR, OKC 250 NTR Figure 13 - 21 -...
  • Page 22 OKC 200 NTRR, OKC 250 NTRR Exchangers combined in a series Figure 14 - 22 -...
  • Page 23 OKC 200 NTRR, OKC 250 NTRR Two heating water sources Figure 15 Heater with volume exceeding 200 liters at the outlet hot water piping provide combined temperature and pressure safety fittings according to ČSN EN 1490, or the temperature safety fittings fitted with water temperature sensor placed in the heater or other safety valves DN 20, and the opening overpressure compliant with the maximum operating overpressure of the heater vessel.
  • Page 24 OKC 100 NTR/HV, OKC 125 NTR/HV, OKC 16 NTR/HV OKC 100.1 NTR/HV, OKC 125.1 NTR/HV Figure 16 - 24 -...

  • Page 25: Connection Of Indirect Tank To Hot Water System

    CONNECTING A TANK TO A WATER AND HEATING SYSTEM OKC 80 - 200 NTR/Z The water installation must follow and meet the requirements and regulations relevant in the country of use! Figure 17 CONNECTION OF INDIRECT TANK TO HOT WATER SYSTEM It is recommended to install stop valves on the heating water inlet and outlet (for possible dismantling of the heater).

  • Page 26: Electrical Installation

    ELECTRICAL INSTALLATION 2.5.1 GENERAL INFORMATION FOR ELECTRICAL INSTALLATION • Check the insertion of the thermostat sensor in the thermowell, the so-called insertion all the way. • The tank can be connected to any hot water heating boiler up to the 50 kW power output. To adjust the distance from the wall, connect the wire of the external protective bonding! •...

  • Page 27: Putting Out Of Service, Discharge

    Procedure of putting the heater into operation: 1. Check both water and electric installation; for combined tanks, check also the installation to the hot water heating system. Check proper placement of thermostat sensors. The sensors in the thermowell have to be inserted all the way. 2.

  • Page 28: Most Frequent Function Failures And Their Causes

    Caution! In doing so, the cold water supply pipe and the connection fitting of the tank may get heated! If the hot water heater does not work, or if hot water is not withdrawn, no water shall drip off the safety valve. If water drips, then the pressure in the supply piping is either too high, or the safety valve is defective.

  • Page 29: Operation Of Thermostat

    3 OPERATION OF THERMOSTAT OPERATING DEVICES OF THE TANK Electrical installation cover for tank: OKC NTR/Z Electric circuit closing indicator lamp Thermostat knob Figure 19 Electrical installation cover for tank: OKC NTR, OKC NTRR, OKC NTR/HV Thermostat knob Electric circuit closing indicator Figure 20 Thermostat and no other part of the control panel is not a bearing part which can be used for any handling with the heater.

  • Page 30: Temperature Setting

    3.1.1 TEMPERATURE SETTING Water temperature is set by turning the thermostat knob. The desired symbol is set against the fixed point on the control panel (Figure 21). Fixed mark on the control panel Upper temperature range limit (about 75 °C) "Ideal"...

  • Page 31: Transport & Storage Instructions

    TRANSPORT & STORAGE INSTRUCTIONS The appliance shall be transported and stored in a dry place, and protected from weather effects with a temperature ranging from -15 to +50 °C. During loading and unloading, the instructions stated on the packaging shall be observed. Due to transport and thermal dilatations, excessive enamel may fall off on the bottom of the receptacle in heaters with exchanger.

This manual is also suitable for:

Drazice okc 100 ntr/hvDrazice okc 80 ntr/zDrazice okc 125 ntrDrazice okc 125 ntr/hvDrazice okc 100 ntr/zDrazice okc 160 ntr ... Show all

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