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DescriptionThe OKC 160-300 NTR/BP and OKC 200-300 NTRR/BP type water heaters are indirectly heated water heaters for domestic hot water production using heating water from an external source.
The NTRR version has two heat exchangers for combining any two heating water sources.An auxiliary G 6/4" heating unit can also be used in solar collector systems
Drazice OKC 250 NTRR/BP data sheet and dimensionsTypeDrazice OKC 250 NTRR/BP 2 heat exchanger indirect storage tankVolumeL245Max. weight without waterkg122/118Nominal overpressureMPa0.6Maximum operating overpressureMPa1Max. heating water temperature°C110Max. DHW temperature°C80Bottom heat exchanger surfacem21Upper heat exchanger heating surfacem21AH/FH capacitykW2x24Continuous capacity of HMV1/AH/FHL/h670/650**1080Heating time from 10 °C to 60 °C with heat exchangermin36/20Heating time from 10 °C to 60 °C with heaterh6.5Heating element capacitykW2.2VoltageV/Hz1 PE-N~230/50ProtectionIP 44Heat losses [kWh/24h]/energy efficiency class1.73/B