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Summary of Contents for Drazice OKC 200 NTRR/SOL
- Page 1 OPERATING AND INSTALLATION MANUAL HOT WATER TANKS FOR SOLAR SYSTEMS OKC 200 NTRR/SOL OKC 250 NTRR/SOL OKC 300 NTRR/SOL 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 CONTENTS PRODUCT TECHNICAL SPECIFICATION ....................... 4 FUNCTION DESCRIPTION ........................4 PRODUCT DESCRIPTION ........................4 TECHNICAL DATA ..........................5 1.3.1 TECHNICAL DATA FOR TANKS ....................5 DESIGN AND BASIC DIMENSIONS OF TANKs ..................7 OPERATION AND FITTING INSTRUCTIONS ....................9 OPERATING CONDITIONS ........................9 EXAMPLES OF TANKS CONNECTION ....................
- 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 The OKC 200, 250, 300 NTRR/SOL hot water tanks are designed and manufactured as a part of a solar system containing additional integral elements of the system, such as sun collectors and their roof holders (flat roof stands), expansion tank, collector filling distribution and other items necessary for proper and trouble-free function of a solar system. -
Page 5: Technical Data
1.3 TECHNICAL DATA 1.3.1 TECHNICAL DATA FOR TANKS OKC 200 OKC 250 OKC 300 MODEL NTRR/SOL NTRR/SOL NTRR/SOL CAPACITY HEIGHT 1377 1557 1791 DIAMETER WEIGHT WITHOUT WATER HOT WATER OPERATING PRESSURE HEATING WATER OPERATING PRESSURE MAX TEMPERATURE OF HEATING WATER °C MAX TEMPERATURE OF HOT WATER °C... - Page 6 PRESSURE LOSSES OKC 200-300 NTRR/SOL 0,08 0,07 0,06 0,05 0,8 m2 0,04 1,0 m2 0,03 1,2 m2 0,02 0,01 Amount of heating water - m Table 2 Amount of heating water - m3/hr Pressure loss - mbar Heat exchanger 0,8 m 0,43 1,56 2,9 4,96 7,54 10,5 14,01 17,4 21,65 26,46 31,72 36,6 42,5 49,02...
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Page 7: Design And Basic Dimensions Of Tanks
1.4 DESIGN AND BASIC DIMENSIONS OF TANKS OKC 200 NTRR/SOL OKC 250 NTRR/SOL OKC 200 NTRR OKC 250 NTRR 1377 1557 Figure 1 1280 1460 1000 neck # 1 3/4" outer neck # 2 3/4" inner neck # 3 1/2" inner neck # 4 6/4"... - Page 8 OKC 300 NTRR/SOL OKC 300 NTRR/SOL 1791 1674 Figure 2 neck # 1 3/4" outer 1014 neck # 2 1/2" inner neck # 3 3/4" inner 1322 neck # 4 6/4" inner 1164 - 8 -...
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Page 9: Operating Conditions
300 litre volume tanks are screwed onto the bottom wooden palette with M12 screws. When the tank is released from the pallet and prior to its putting into operation, 3 screw legs supplied have to be installed as the product accessories. With three adjustable legs, the tank may be positioned vertically to the base within 10 mm range. -
Page 10: Examples Of Tanks Connection
2.2 EXAMPLES OF TANKS CONNECTION 2.2.1 CONNECTING A TANKT TO A SOLAR SYSTEM Tank shall be connected to a solar system by a person familiarised with these heating systems. Temperatures in a solar circuit may achieve far over 100°C, and there are higher pressures than in typical heating systems, therefore correct selection of interconnecting materials and its coupling is of great importance, as well as correct dimensioning of the expansion tank connected to this system. -
Page 11: Example Of Connecting A Tank With Solar Collectors And A Gas Boiler
2.2.2 EXAMPLE OF CONNECTING A TANK WITH SOLAR COLLECTORS AND A GAS BOILER Connecting a tank to a boiler heating circuit: The tank is placed on the ground, next to the heating source, or in its vicinity. The heating circuit is connected to marked inlets and outlets of the tank's heater exchanger;... -
Page 12: Plumbing Fixture
2.3 PLUMBING FIXTURE Every hot utility water pressure tank shall be equipped with membrane spring loaded with safety valve. Tanks 300 l are not equipped with safety valve. If the tanks 200 and 250 l enclosed safety valve 0.6 MPa. Safety valve shall be easily accessible, fitted as close as possible to the tank.The inlet pipes must have at least the same clearance as the safety valve. -
Page 13: First Commissioning
2.4 FIRST COMMISSIONING PROCEDURE OF FILLING THE TANK WITH WATER 1. Open the stop valve on the tank inlet 2. Open the hot water valve on the combination faucet. Once water starts flowing out through the combination faucet the filling is completed and the faucet shuts off. 3. -
Page 14: Spare Parts
PROCEDURE OF EXCHANGING ANODE ROD IN SIDE FLANGE Turn off control voltage to the tank 2. Drain water from the tank. PROCEDURE: Close water inlet in the tank Open the hot water valve on the combination faucet. Open the drain tap of the tank 3. -
Page 15: Installation Regulations
on the heater's service life and quality. The decisive enamel layer which remains in the vessel. DZD has many years of experience with this occurrence and it is not a reason for complaints. Do not attempt to remove potential defect by yourselves. Seek either expert or service help. It does not take much for an expert to remove the defect. -
Page 16: Anode With External Voltage Source
4 ANODE WITH EXTERNAL VOLTAGE SOURCE MAINTENANCE FREE (ON DEMAND) Anode rod is immune to wear and operates without the need of maintenance. Anode rod with an external voltage source consists of mini-potentiostat and titanium electrode that are interconnected via a connecting cable.
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