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WATER HEATERS FOR SOLAR SYSTEMS
Družstevní závody Dražice – strojírna s.r.o. (Works Cooperative - Dražice – Machine Plant, Ltd.)
Operation and Installation Manual
OKC 200 NTRR/SOL
OKC 250 NTRR/SOL
OKC 300 NTRR/SOL
OKC 400 NTR/SOL
OKC 500 NTR/SOL
OKC 400 NTRR/SOL
OKC 500 NTRR/SOL
29471 Benátky nad Jizerou
Tel.: 326 370911, fax: 326 370980
Dražice 69
www.dzd.cz
dzd@dzd.cz
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Summary of Contents for Drazice OKC 200 NTRR/SOL
- Page 1 Operation and Installation Manual WATER HEATERS FOR SOLAR SYSTEMS OKC 200 NTRR/SOL OKC 250 NTRR/SOL OKC 300 NTRR/SOL OKC 400 NTR/SOL OKC 500 NTR/SOL OKC 400 NTRR/SOL OKC 500 NTRR/SOL Družstevní závody Dražice – strojírna s.r.o. (Works Cooperative - Dražice – Machine Plant, Ltd.) Dražice 69...
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Page 2: Table Of Contents
Read carefully the below instructions prior to the installation of the 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 indirect water heaters. Product’s reliability and safety is proven by tests implemented by the Engineering Test Institute in Brno. -
Page 3: Use
1. USE The OKC 200, 250 & 300 NTR/SOL and OKC 400, 500 NTR,R/SOL water heaters 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 4: Technical Description
4. TECHNICAL DESCRIPTION OKC 200 NTRR/SOL OKC 250 NTRR/SOL OKC 300 NTRR/SOL OKC 400 NTR/SOL OKC 500 NTR/SOL OKC 400 NTRR/SOL OKC 500 NTRR/SOL 5. TECHNICAL PARAMETERS & DIMENSIONS OKC 200 OKC 250 OKC 300 NTRR/SOL NTRR/SOL NTRR/SOL Type Tank capacity... - Page 5 Type OKC 200 NTRR/SOL OKC 250 NTRR/SOL 1382 1562 1280 1461...
- Page 6 OKC 400 NTR/SOL, OKC 400 NTRR/SOL OKC 500 NTR/SOL, OKC 500 NTRR/SOL OKC400NTR OKC400NTRR OKC500NTR OKC500NTRR 1094 1114 1194 1194 1264 1264 1289 1289 1409 1409 1446 1604 1798 1798 1790 1790 1919 1919 1892 1892 1005 1005 1040 1040...
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Page 7: Examples Of Heaters Connection
OKC 400 OKC 400 OKC 500 OKC 500 Type NTR/SOL NTRR/SOL NTR/SOL NTRR/SOL Tank volume (except anode and exchanger) Tank volume Diameter of the heater Weight Max. operational overpressure in the tank Max. operational overpressure in the exchanger Max rating water temperature °C Max temperature of HSW °C... - Page 8 drain of heater, the HSW inlet has to be provided with a “T” fixture with a drain valve. Each individually lockable heater must be at the cold water inlet provided with a stop gate, test cock, safety valve with a reverse flap and a pressure gauge.
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Page 9: Pressure Losses
7. PRESSURE LOSSES Exchanger with heat transfer Výměník s teplosměnou surface 2 m2 plochou 2 m2 Exchanger with heat transfer Výměník s teplosměnou surface 1,5 m2 plochou 1,5 m2 Exchanger with heat transfer Výměník s teplosměnou Heating surface 1,4 m2 plochou 1,4 m2 water resistance... -
Page 10: Procedure Of Filling Heater With Water
For proper safety valve operation, a backflow valve must be mounted on the inlet pipes, preventing spontaneous heater draining and hot water penetrating back into the water main. When assembling the security equipment, follow ČSN 06 0830. 9. PROCEDURE OF FILLING HEATER WITH WATER 1. -
Page 11: Installation Regulations
11. INSTALLATION REGULATIONS Regulations and instructions that must be obeyed if the heater is connected to the heating system ČSN 06 0310 – Thermal systems in buildings – Designing and Installation ČSN 06 0830 – Thermal systems in buildings – Protecting devices b) to the electrical network ČSN 33 2180 - Connecting of electric devices and appliances ČSN 33 2000-4-41 - Low voltage electric installations Protective measures to ensure safety –... -
Page 12: Anode With External Voltage Source
13 ANODE WITH EXTERNAL VOLTAGE SOURCE - maintenance-free (on order) 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. Potentiostat for cathode protection of enamelled water heaters with integrated red/green LED signal system.
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