Centralized Water Systems



DAYLIFF CSW pumped circulation hot water systems are applicable in centralised distribution installations where the tank is mounted remotely from the solar collectors instead of the integral thermosyphon alternative. They can be used in small scale domestic systems and are also particularly applicable for larger systems installed in institutions like schools, hotels and hospitals. Key features include:

  • High efficiency Ultrasun Premium solar collectors which incorporate full area copper absorption plates ultrasonically welded to copper circulation tubes, advanced specification insulation and tempered security glass to provide energy absorption of up to 95%.
  • Long life eco friendly Ultrasun Premium indirect single coil water storage tank made from low carbon steel with double enamel internal coating and cathodic protection for exceptional corrosion protection. Tanks are also provided with powder coated steel external casings with soft foam insulation.
  • High performance Grundfos Alpha2 25-60 speed controlled circulator pump available on request.
  • An advanced programmable differential temperature controller manages operation of forced circulation solar systems. The controller incorporates inputs from sensors that monitor temperature at various points in the system and relays signals to control the circulation pump and thermostats to optimize hot water availability. It also includes a digital display indicator indicating the system layout, hour counter for the circulator pump and system temperatures.

DAYLIFF CSW Hot Water system are available in various tank sizes and collector configurations to suit most residential and institution applications and provide an efficient and effective solution to all pumped solar hot water heating requirements.

OPERATING CONDITIONS
Water Quality: Water outside the following limits should be appropriately pre-treated: Clarity: Clear, TDS:> 600mg/l, Hardness: > 200mg/l CaCO3.
Saturation Index: > 0.8
Max Operating Pressure: 10 Bar

EQUIPMENT SPECIFICATION

MODEL CSW300 CSW500 CSW1000 CSW1500 CSW2000
No of People 6 10 20 30 40
System Tank size (Litres) 300 500 1000 1500 2000
Tank Dimensions (DxH) 700x1210 740x1800 1006x2072 1120x2300 1460x2200
Pipe Connection Size 1” 1 1/4"
Empty Tank Weight (kg) 118 189 269 366 570
Collector Model 3xST230 5xST230 7xST230 10xST230 17xST230
Collector Area (m2) 6.9 11.5 16.1 23 39.1
Collector Weight (kg) 108 180 252 360 600
Max. /Min. Heat Output/Day (kWhrs) 41/28 69/46 97/64 138/92 235/156

 

Note: Maximum heating output is based on average irradiation levels of 6000W/m/day prevailing in September - March and minimum Heating output is based on average irradiation levels of 4000W/m/ day prevailing in June/ July and are for indicative purposes only.