Fully automatic, simple to operate condensing direct fired water heater for domestic hot water.

9 models available with continuous outputs (@44°C ∆T) of 228, 233, 374, 461, 465, 602, 608 & 614 l/h.

 

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Warranty 2 product item
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  • Low power outputs 11-29kW and storage capacities of 162-384 litres.
  • Compact, standalone water heating unit for safe and clean domestic hot water generation.
  • No clearances required at the rear and minimal clearances at top and sides allow easy siting in any plant room.
  • Reduces energy use and running costs by maximising condensing water heater performance.
  • Meets the strict standards for efficiencies and NOx emissions (under 37 mg/kWh) in new buildings.
  • Load profiles of XL or XXL and an A rating ensure all models in the range are fully compliant with the ErP (Energy-related Products Directive) regulations coming in September 2018.
  • Closely matches hot water demand, reducing wastage of energy.
  • Electronic Anode fitted as standard to protect against corrosion.
  • No top-to-bottom re-circulation kit required due to the heat exchanger coil positioned in the centre of the unit for even heat distribution and reduced likelihood of stratification.
  • Down firing pre-mix modulating burner reduces the risk of scale build up impacting on the heat transfer.
  • Natural gas and LPG water heater options.
  • All components accessible under front cover for ease of service and maintenance.
  • Flexible flue options (see optional extras tab and brochure for details).
  • Full project assistance available from our dedicated hot water expert to help with hot water sizing and selection of equipment to match the application.
  • Extensive back up and support from our team of experienced engineers across the UK.
  • Long-term commitment to spare parts.
  Dorchester DR-CC model Units DR-CC 12-160 DR-CC 12-200 DR-CC 20-160 DR-CC 20-200 DR-CC 24-245 DR-CC 24-285 DR-CC 32-245 DR-CC 32-285 DR-CC 32-380
Water Continuous output with 44°C ΔT l/h 228 233 374 374 461 465 602 608 614
1st hour output with 44°C ΔT l 360 470 510 620 740 820 870 960 1100
Continuous output with 50°C ΔT l/h 201 205 329 329 406 410 530 535 540
1st hour output with 50°C ΔT l 310 410 440 540 640 720 760 840 950
Continuous output with 56°C ΔT l/h 180 183 294 294 362 366 473 478 482
1st hour output with 56°C ΔT l 270 360 380 480 560 630 670 740 840
Storage capacity litres 162 202 162 202 247 288 247 288 384
Maximum working pressure bar 8 8 8 8 8 8 8 8 8
ErP load profile - XL XL XL XL XXL XXL XXL XXL XXL
Energy Building Regulations thermal efficiency gross % 96 98 95 95 96 97 95 96 97
ErP efficiency rating - A A A A A A A A A
Heating-up time, ΔT = 44°C min. 27 41 17 27 25 31 20 24 31
Heating-up time, ΔT = 50°C min. 31 47 19 30 29 35 22 27 36
Heating-up time, ΔT = 56°C min. 34 52 22 34 32 40 25 31 40
Standby losses kW/24h 2.16 2.3 2.16 2.3 2.64 2.97 2.64 2.97 2.9
Nat Gas Input, gross – maximum kW 12.1 12.1 20 20 24.4 24.4 32.2 32.2 32.2
Input, net - maximum kW 10.9 10.9 18 18 22 22 29 29 29
Output – maximum kW 11.7 11.9 19.1 19.1 23.5 23.8 30.7 31 31.3
Gas inlet pressure – nominal mbar 20 20 20 20 20 20 20 20 20
Gas flow rate – maximum @1013.25 mbar and 15°C m3/h 1.2 1.2 1.9 1.9 2.3 2.3 3.1 3.1 3.1
LPG Input, gross – maximum kW 11.8 11.8 19.6 19.6 23.9 23.9 31.5 31.5 31.5
Output – maximum kW 11.4 11.6 18.7 18.7 23 23.3 30.1 30.4 30.7
Gas inlet pressure – nominal mbar 37 37 37 37 37 37 37 37 37
Gas flow rate – maximum@1013.25 mbar and 15°C kg/h 0.8 0.8 1.4 1.4 1.7 1.7 2.3 2.3 2.3
Flue Approximate flue gas volume @15°C, 9.8% CO2, N.T.P. (Nat. Gas - G20) m3/h 14.72 14.72 24.34 24.34 29.76 29.76 39.3 39.3 39.3
Flue gas temperature – maximum °C 42 61 42 61 57 65 57 65 65
NOx emission, dry air free, European Class 6. Maximum (at part load) mg/kWh 22 22 30 30 33 33 37 37 37
Pressure at the flue outlet only (B23) with zero pressure at air inlet Pa 33 33 59 59 108 108 192 192 192
Electrical Start current–maximum (maximum power) A (W) 25 25 36 36 51 51 85 85 85
Run current–maximum (maximum power) A (W) 85 85 85 85 105 105 105 105 105
Electrical supply Vac 230V 50Hz 230V 50Hz 230V 50Hz 230V 50Hz 230V 50Hz 230V 50Hz 230V 50Hz 230V 50Hz 230V 50Hz
Voltage tolerance % of Vac -15% +10% -15% +10% -15% +10% -15% +10% -15% +10% -15% +10% -15% +10% -15% +10% -15% +10%
Misc. Noise level dB(A) 41 41 52 52 53 53 58 58 58
Number of anodes - 1 1 1 1 2 2 2 2 2
Weight when empty kg 95 106 95 106 120 136 120 136 155
Approximate shipping weight kg 114 122 114 122 136 153 136 153 172
Maximum floor load/ weight filled with water kg 255 306 255 306 365 429 365 429 551
  Title Type Size  
Dorchester DR-CC water heater product brochure Dorchester DR-CC water heater product brochure Product brochures 5966 ko Download
Dorchester DR-CC water heater dimensions Dorchester DR-CC water heater dimensions Dimensions 105 ko Download
Dorchester DR-CC water heater data table Dorchester DR-CC water heater data table Data tables 82 ko Download
Dorchester DR-CC installation manual Dorchester DR-CC installation manual Installers guides 7420 ko Download
Dorchester DR-CC water heater hydraulic schemes Dorchester DR-CC water heater hydraulic schemes Hydraulic schematics 126 ko Download
Dorchester DR-CC 160 front CAD Dorchester DR-CC 160 front CAD CAD 138 ko Download
Dorchester DR-CC 160 side CAD Dorchester DR-CC 160 side CAD CAD 100 ko Download
Dorchester DR-CC 160 top CAD Dorchester DR-CC 160 top CAD CAD 136 ko Download
Dorchester DR-CC 200 front CAD Dorchester DR-CC 200 front CAD CAD 140 ko Download
Dorchester DR-CC 200 side CAD Dorchester DR-CC 200 side CAD CAD 102 ko Download
Dorchester DR-CC 200 top CAD Dorchester DR-CC 200 top CAD CAD 135 ko Download
Dorchester DR-CC 245 front CAD Dorchester DR-CC 245 front CAD CAD 164 ko Download
Dorchester DR-CC 245 side CAD Dorchester DR-CC 245 side CAD CAD 122 ko Download
Dorchester DR-CC 245 top CAD Dorchester DR-CC 245 top CAD CAD 139 ko Download
Dorchester DR-CC 285 front CAD Dorchester DR-CC 285 front CAD CAD 171 ko Download
Dorchester DR-CC 285 side CAD Dorchester DR-CC 285 side CAD CAD 98 ko Download
Dorchester DR-CC 285 top CAD Dorchester DR-CC 285 top CAD CAD 141 ko Download
Dorchester DR-CC 380 front CAD Dorchester DR-CC 380 front CAD CAD 143 ko Download
Dorchester DR-CC 380 side CAD Dorchester DR-CC 380 side CAD CAD 112 ko Download
Dorchester DR-CC 380 top CAD Dorchester DR-CC 380 top CAD CAD 136 ko Download
Dorchester DR-CC water heater electrical connections Dorchester DR-CC water heater electrical connections Wiring diagrams 107 ko Download
  • New build projects.
  • Small to medium sized commercial and public buildings including schools, hospitals and hotels.
  • Smaller premises including school kitchens, hair salons, bed & breakfasts.
  • Unvented water supply kit - essential for any unvented application. Includes an expansion vessel sized for the water heater and local pipework only.
  • Room Sealed Flue Systems:
    • Concentric flue systems type C13–Horizontal termination.
    • Concentric flue systems type C33–Vertical termination.
    • Concentric flue systems type C43.
  • Twin duct flue systems type C53–Vertical flue termination with Horizontal air inlet.
  • Conventional Open Flue Systems:
    • Open flue systems type B23–Vertical termination.
  • Choose from a wide range of service contracts to help maintain optimum performance of your water heater.
  • Book commissioning at the same time as placing your order for improved warranty terms.