Drazice OKCE 100 Operating And Installation Manual
Stationary electrical hot water tanks
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Summary of Contents for Drazice OKCE 100
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Page 1: Installation Manual
OPERATING AND INSTALLATION MANUAL STATIONARY ELECTRICAL HOT WATER TANKS OKCE 100 NTR/2,2 kW OKCE 125 NTR/2,2 kW Družstevní závody Dražice - strojírna s.r.o. Dražice 69, 294 71 Benátky nad Jizerou Phone.: +420 /326 370 990 Fax: +420 / 326 370 980... -
Page 2: Table Of Contents
OPERATING CONDITIONS ........................7 ELECTRICAL INSTALLATION ........................ 7 2.2.1 ELECTRIC INSTALLATION FOR: OKCE 100 S/2.2 kW; OKCE 125 S/2.2 kW; ......... 7 PLUMBING FIXTURE ........................... 8 PRESSURE LOSSES ..........................9 CONNECTION OF INDIRECT TANK TO HOT WATER SYSTEM .............. 9 EXAMPLES OF tankS CONNECTION.................... - Page 3 CAREFULLY READ THIS MANUAL BEFORE INSTALLING THE WATER 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.
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Page 4: Product Technical Specification
1 PRODUCT TECHNICAL SPECIFICATION 1.1 FUNCTION DESCRIPTION The construction of the OKC 100,125 NTR series tanks and their variety allow economic preparation of hot service water (HSW) using different energy sources. Their nominal performance provides sufficient amount of hot water for flat units, premises, restaurants, and similar establishments. HSW can be heated by electric energy, different types of central heating boilers, and combinations of those. -
Page 5: Design And Basic Dimensions Of Tank
1.3 DESIGN AND BASIC DIMENSIONS OF TANK OKCE 100 NTR/2,2 kW, OKCE 125 NTR/2,2 kW Cold water inlet Hot utility water Figure 1 OKCE 100 NTR/2,2 kW OKCE 125 NTR/2,2 kW ① 1062 1" outer 1059 ② 3/4" inner ③... -
Page 6: Technical Parameters
1.4 TECHNICAL PARAMETERS MODEL OKCE 100 NTR/2,2kW OKCE 125 NTR/2,2 kW Capacity [l] Weight without water [kg] TANK OPERATING PRESSURE [MPa] HEAT EXCHANGER OPERATING PRESSURE [MPa] MAX TEMPERATURE OF HEATING WATER [°C] MAX TEMPERATURE OF HOT WATER [°C] Heating surface of bottom heat exchanger [m 1,45 WATER TEMPERATURE OF 80 ℃... -
Page 7: Operation And Fitting Instructions
2.2 ELECTRICAL INSTALLATION 2.2.1 ELECTRIC INSTALLATION FOR: OKCE 100 S/2.2 KW; OKCE 125 S/2.2 KW; The wiring diagram is attached to the tank on the side of the electric installation guard. Connection, repairs, and wiring inspections may only be carried out by a company authorised to such activity. -
Page 8: Plumbing Fixture
2.3 PLUMBING FIXTURE Power water connects to pipes with ¾“ thread in the bottom part of the tank. Blue - cold water supply, red – hot water outlet. For potential disconnection of the tank, the sanitary water inlets and outlets must be provided with screw coupling Js 3/4“. The safety valve is mounted on the cold water inlet identified with a blue ring. -
Page 9: Pressure Losses
ALLOWABLE SAFETY VALVE MAXIMUM OPERATING START-UP PRESSURE IN Tanks must be provided with discharge valve OVERPRESSUR PRESSURE COLD WATER E OF WATER mounted on the cold sanitary water inlet to the tank [MPa] PIPES [MPa] HEATER [MPa] for potential disassembly or repair. up to 0.48 When assembling the security equipment, follow the standard. -
Page 10: Examples Of Tanks Connection
b) Service water heating via thermal energy through heat exchanger Closing valves of the heat exchanger must be opened which ensures heating water flow from the hot water heating system. Together with the closing valve, it is recommended to install an air outlet valve at the inlet to the heat exchanger in order to bleed the heat exchanger as needed, in particular before the beginning of the heating season (Figure 4). - Page 11 Example of group connection of tanks by Tichellman method for equal HSW withdrawal of from all tanks OV – Heating water TUV - Hot service water SV - Cold water 1 - Return valve C – Circulation 2 – Pump Figure 3 Figure 4 - 11 -...
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Page 12: First Commissioning
2.7 FIRST COMMISSIONING Once the tank is connected to water supply system and power supply, and safety valve tested (accordingly with the manual attached to the valve), the heater can be put in operation. Procedure: check the water main and wiring; Check proper placement of thermostat sensors. The sensors in the well must be inserted all the way in;... -
Page 13: Spare Parts
To prevent the occurrence of bacteria (e.g. Legionella pneumophila) within stack heating it is recommended, if absolutely necessary, to increase the temperature of hot service water (HSW) periodically for a transitional period of time to at least 70℃. It is also possible to make use of another way of disinfecting HSW. -
Page 14: Most Frequent Function Failures And Their Causes
lower limit of temp. scope (around 5°C) upper temperature range limit (about 74℃) fixed point on the control panel "anti-freezing" temperature "ideal" temperature (about (about 8°C) 55℃) Figure 6 Adjusting the thermostat knob to the left backstop does not mean permanent shutoff of the heating element. -
Page 15: Important Notices
4 IMPORTANT NOTICES 4.1 INSTALLATION REGULATIONS Without a proof issued by a professional company about performed electrical and plumbing fixture the warranty shall be void. It is necessary to check the protective magnesium anode periodically and replace it if necessary. No closing armature may be mounted between the tank and the safety valve. -
Page 16: Disposal Of Packaging Material And Non-Functioning Product
4.2 DISPOSAL OF PACKAGING MATERIAL AND NON- FUNCTIONING PRODUCT A service fee for providing return and recovery of packaging material has been paid for the packaging in which the product was delivered. The service fee was paid pursuant to Act No 477/2001 Coll., as amended, at EKO-KOM a.s.
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