Drazice OKH 100 NTR/HV Operating And Installation Manual
Indirect hot water tanks
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Summary of Contents for Drazice OKH 100 NTR/HV
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Page 1: Installation Manual
OPERATING AND INSTALLATION MANUAL INDIRECT HOT WATER TANKS OKH 100 NTR/HV OKH 100 NTR OKH 125 NTR/HV OKH 125 NTR OKH 160 NTR Družstevní závody Dražice - strojírna s.r.o. Dražice 69, 294 71 Benátky nad Jizerou Phone.: +420 /326 370 990 Fax: +420 / 326 370 980 e-mail: prodej@dzd.cz... -
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 DESIGN AND BASIC DIMENSIONS OF TANK ..................5 OPERATION AND FITTING INSTRUCTIONS ....................9 OPERATING CONDITIONS ........................ - Page 3 PRIOR TO THE INSTALLATION OF THE TANK, READ CAREFULLY THIS MANUAL! 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. The present instructions will introduce you to the use, construction, maintenance and other information regarding electrical water tanks.
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Page 4: Product Technical Specification
1 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. -
Page 5: Design And Basic Dimensions Of Tank
The temperature of water can be set using the thermostat. Heat exchanger is welded in pressure receptacle. Technical description: OKH 100 NTR, OKH 125 NTR, OKH 160 NTR Figure 1 Technical description: OKH 100 NTR/HV, OKH 125 NTR/HV Figure 2 - 5 -... - Page 6 Dimensions of tanks OKH 100 NTR, OKH 125 NTR, OKH 160 NTR Figure 3 D[mm] E[mm] F[mm] L[mm] A [mm] B [mm] C[mm] OKH 100 NTR OKH 125 NTR 1050 1047 OKH 160 NTR 1235 1233 neck # 1 1" outer neck # 2 3/4"...
- Page 7 OKH 100 NTR/HV, OKH 125 NTR/HV 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 D[mm] E[mm] F[mm] G[mm]...
- Page 8 TECHNICAL DATA OKH 100 OKH 125 OKH 160 OKH 100 OKH 125 TYPE NTR/HV NTR/HV VOLUME MAX WEIGHT OF THE TANK WITHOUT WATER EXCHANGER HEAT 1,08 1,45 1,45 1,08 1,45 TRANSFER SURFACE MAXIMUM PRESSURE OF THE RECEPTACLE MAXIMUM PRESSURE OF THE EXCHANGER MAXIMUM HSW °C TEMPERATURE...
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Page 9: 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 power 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 10 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. After being turned, the button must click back into a notch.
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Page 11: Electrical Installation
2.3.2 ELECTRONIC THERMOSTAT WIRING METHODS Wiring of tanks of the below types: OKH 100 NTR, OKH 125 NTR, OKH 160 NTR, OKH 100 NTR/HV, OKH 125 NTR/HV - there is voltage on terminal 2 if tank is heated - there is voltage on terminal 1 if tank is not heated... -
Page 12: Connection Of Indirect Tank To Hot Water System
2.4 CONNECTION OF INDIRECT TANK TO HOT WATER SYSTEM It is recommended that heating water inlet and outlet are provided with shutoff valves ( in case the tank has to be demounted). Valves should be as close as possible to the tank to minimise heat losses. -
Page 13: First Commissioning
2.5 FIRST COMMISSIONING To connect the tank to water supply system, hot water heating system, power supply and, after testing the safety valve (accordingly with the manual attached to the valve), the tank can be put in operation. Before opening the power supply, the tank must be filled with water. -
Page 14: Inspection, Maintenance & Care For The Appliance
2.7 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 15: Most Frequent Function Failures And Their Causes
2.8 MOST FREQUENT FUNCTION FAILURES AND THEIR CAUSES FAILURE SYMPTOM INDICATOR SOLUTION Temperature of water is • Defective thermostat not corresponding with the set value Water is constantly • • LED is not on high input pressure dripping off the safety •... -
Page 16: Temperature Setting
3.1.2 TEMPERATURE SETTING Water temperature is set by turning the thermostat knob. The desired symbol is adjusted against the fixed point on the control panel (Figure 9). "ideal" temperature upper limit of temp. (about 55℃) range (approx. 80°C) lower temperature range limit (about 5°C) "anti-freezing"... -
Page 17: Spare Parts
Both the electric and water installation must follow and meet the requirements and regulations relevant in the country of use! We emphasize that the tank shall not be connected to power supply if flammable liquids (benzine, stain cleaner) or gases, etc., are handled in its proximity. 4.2 SPARE PARTS G ¾"...
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