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PRODUCT TECHNICAL SPECIFICATION 

1.1

 

FUNCTION DESCRIPTION 

Indirect stationary NTR and NTR/HV series tanks are used to prepare HSW in combination with another hot 
water supply, mostly gas boiler.

 

Their rated power output guarantee sufficient amount of HSW even for 

large dwelling units 

premises, restaurants and similar facilities.

 

In case of higher HSW consumption tanks 

heat water continuously and operate in a manner that is similar to that of instantaneous tanks. 

1.2

 

ADVICE FOR CUSTOMERS 

1.2.1

 

HOT WATER CONSUMPTION 

 

Consumption  of  hot  water  in  households  depends  on  the  number  of  people,  amount  of 

sanitary equipment, length, diameter and insulation of piping in the flat, or on individual 

habits of users.

  

1.2.2

 

ENERGY SAVING 

 

Hot utility water reservoir is insulated by means of top

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quality polyurethane foam with zero 

CFCs content.

  

Set the temperature on the tank thermostat to that you need for the operation of your 

household.

 

Thus you will reduce electricity consumption, as well as the amount of lime 

sediments on the walls of the receptacle and on the heat exchanger.

 

Benefits of using indirect tank: 

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Easy installation and connection to hot water supply,

 

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Very fast hot utility water heating,

 

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Enamelled steel tank ensures compliance with all hygienic requirements for the 

quality of HSW,

 

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Integrated protective magnesium anode increases corrosion resistance,

 

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Quality polyurethane insulation ensures minimum heat losses,

 

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Smoothly settable HSW temperature up to 74°C,

 

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multiple supply points,

 

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Light indication of tank's run,

 

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Accurate HSW temperature control,

 

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Possibility of connecting HSW circulation.

 

 

Summary of Contents for OKH 100 NTR

Page 1: ...INDIRECT HOT WATER TANKS OKH 100 NTR HV OKH 100 NTR OKH 125 NTR HV OKH 125 NTR OKH 160 NTR Dru stevn z vody Dra ice stroj rna s r o Dra ice 69 294 71 Ben tky nad Jizerou Phone 420 326 370 990 Fax 420...

Page 2: ...ICAL INSTALLATION 11 2 3 2 ELECTRONIC THERMOSTAT WIRING METHODS 11 2 4 CONNECTION OF INDIRECT TANK TO HOT WATER SYSTEM 12 2 5 FIRST COMMISSIONING 13 2 6 PUTTING OUT OF SERVICE DISCHARGE 13 2 7 INSPECT...

Page 3: ...like to thank you for your decision to use a product of our brand The present instructions will introduce you to the use construction maintenance and other information regarding electrical water tank...

Page 4: ...ts of users 1 2 2 ENERGY SAVING Hot utility water reservoir is insulated by means of top quality polyurethane foam with zero CFCs content Set the temperature on the tank thermostat to that you need fo...

Page 5: ...and the flange Thermowells for thermostat sensors and thermometer installation are placed in the flange lid An anode rod is mounted onto the M8 nut The water reservoir is insulated by means of polyure...

Page 6: ...OKH 160 NTR Figure 3 neck 1 1 outer neck 2 3 4 inner neck 3 3 4 outer neck 4 1 2 inner A mm B mm C mm D mm E mm F mm L mm OKH 100 NTR 885 882 129 520 182 622 522 OKH 125 NTR 1050 1047 129 520 182 752...

Page 7: ...Figure 4 neck 1 3 4 outer neck 2 3 4 outer neck 3 3 4 outer neck 4 3 4 outer neck 5 3 4 outer neck 6 1 2 inner A mm B mm C mm D mm E mm F mm G mm OKH 100 NTR HV 885 882 127 520 165 119 182 OKH 125 NTR...

Page 8: ...RE OF THE RECEPTACLE MPa 0 6 MAXIMUM PRESSURE OF THE EXCHANGER MPa 1 MAXIMUM HSW TEMPERATURE C 80 RECOMMENDED HSW TEMPERATURE C 60 HSW CONNECTION G HEATING WATER CONNECTION G 1 G 1 G 1 G G ELECTRICAL...

Page 9: ...l disconnection of the tank utility water inlets and outlets must be provided with Js 3 4 screw coupling If the hot utility water HSW distribution is equipped with circulation circuit the reverse pipe...

Page 10: ...First of all close water inlet in the tank Find necessary pressure values in the following table For proper safety valve operation a backflow valve shall be mounted on the inlet pipes preventing spont...

Page 11: ...50 Hz Elastic cable CYSY 4Cx0 75 can be used for cross connection Connecting terminals are identified on the tank s terminal board 2 3 2 ELECTRONIC THERMOSTAT WIRING METHODS Wiring of tanks of the be...

Page 12: ...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 ins...

Page 13: ...nd that the flange lid bolts are fastened 6 Screw down the electric installation guard 7 When heating utility water with heat energy from the hot water heating system open the heating water inlet and...

Page 14: ...s of heated water its temperature and on the volume of hot water used We recommend checking and cleaning the tank from lime scale and eventual replacement of the anode rod after two years of operation...

Page 15: ...input pressure defective safety valve Table 3 Do not attempt to repair the failure yourselves Seek either expert or service help It does not take much for an expert to remove the defect When organizi...

Page 16: ...ure may be mounted between the tank and the safety valve If the overpressure in the eater main exceeds 0 6 MPa a reduction valve must be mounted before the safety valve All outlets of hot water must b...

Page 17: ...our own interest to check the completeness of the accessories 4 3 DISPOSAL OF PACKAGING MATERIAL AND NON FUNCTIONING PRODUCT A service fee for providing return and recovery of packaging material has b...

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