SCxn Cylinders

SCxn Solar Unvented cylinders

The SCxn cylinder transfers the solar energy from the heat transfer fluid to the mains pressure water and stores it until it is needed. If there isn’t enough sunshine to fully heat the hot water, a back-up heat source (electric immersion heater or boiler) will bring the water up to the correct temperature.

Unvented hot water systems provide a range of benefits:

Benefits for the user

  • Mains pressure hot water.
  • Fast filling baths.
  • Powerful invigorating showers.
  • Simultaneous supply of water to all bathrooms.
  • No cold water storage tank required, freeing up valuable space.
  • Long life low maintenance hot water supply.

Benefits for the installer

  • Duplex steel inner cylinder with 25 year guarantee.
  • Tough plastic leather grain external coating resists scratching.
  • 60mm of CFC-free foam injected insulation providing excellent heat retention characteristics.
  • No anode – reduces service requirements.
  • 3kW incoloy 825 immersion(s) for longer life.
  • Light weight and easy handling to site.
  • Water inlet diffuser prevents cold and hot water mixing.
  • Includes all the necessary safety equipment required by governing legislation.





Technical Specification
Materials
inner cylinder Duplex stainless steel
outer cylinder Dove grey leather grain coated steel
inlet/outlet Stainless steel
coils Corrugated stainless steel
insulation 60mm PU foam (GWP=1, ODP=0)
Maximum operating conditions
potable water temperature 70oC
heating water temperature 95oC
operating pressure 6bar
Cold water supply
minimum dynamic pressure 1.5bar
maximum pressure 25bar
minimum flow rate 15 litres/min
Connections
cold water inlet 22mm stainless steel
hot water inlet 22mm stainless steel
secondary return 1/2"F BSP
coil flow and return 22mm stainless steel
sensor pocket 1/2"F BSP
Coil specification
auxiliary surface area (m2) 0.75
rating (kW) 17
solar surface area (m2) 1.1
rating (kW) -
Immersion heater
direct 2
indirect 1
Thermostatic control
direct input integral immersion heater thermostat and cut out
indirect input external twin thermostat and cut out
Safety components
pressure reducing valve and strainer 3bar
expansion relief valve 6bar
rtemperature and pressure relief valve 7bar / 90oC
factory pressure test 10bar

Direct (SCxnsd)


Indirect (SCxnsi)


Performance
Product Total Storage Capacity (litres) Auxiliary* Heated Volume (mm) SAP heat loss factorDedicated solar volume (litres)Overall Height (mm) Weight When Empty (Kg) Expansion Vessel Size (litres) Dimension A (mm) Dimension B (mm) Dimension C (mm) Heat-up Time (mins) Reheat Time Calculated Heat Loss in 24h (kWh) 
SCxn175sd 175 90 0.915 85 1242 44 18 1017 846 803 20 14 1.43
SCxn215sd 215 130 1.324 85 1485 52 18 1259 1087 879 24 17 1.76
SCxn255sd 255 170 1.540 85 1753 59 25 1527 1355 1057 29 20 1.86
SCxn305sd 305 220 1.810 85 2029 69 25 1804 1631 1196 34 24 2.02
SCxn175si 175 80 0.915 95 1242 48 18 1017 - 774 18 13 1.43
SCxn215si 215 120 1.324 95 1485 56 18 1259 - 1116 22 16 1.76
SCxn255si 255 160 1.540 95 1753 63 25 1527 - 1029 25 19 1.86
SCxn305si 305 205 1.810 95 2029 73 25 1804 - 1167 30 22 2.02


* The Auxiliary heated volume is the amount of water heated by either the Auxiliary coil or the immersion heater

Name and Registered Office: Dimplex - a division of the GDC Group, Millbrook House, Grange Drive, Hedge End, Southampton, Hants, SO30 2DF, United Kingdom.
Company No.1313016 EEE Producer Registration Number WEE/GE0057TS
WEEE Distributor Take Back Scheme - Registration ID: 6131
This is an official website of GDC Group Limited. The GDC Group manages the Dimplex brand.
Neither the GDC Group nor Dimplex are associated with any other website containing the Dimplex brand name