6 Technical Data
Technical data for standard water heaters
Volume (l) 140 180 200 225 250 280 330 425 500
Height (mm) 1150
1080
1525
1695 1350 1500
1465
1660
1725 2160 2500
Diameter (mm) 510
560
510
510 560 560
610
580
610 630 610
Weight (kg)
Maximum Working Pressure (kPa) 850 850 850 850 850 850 850 850 850
Maximum Working Temperature (°C) 95 95 95 95 95 95 95 95 95
Insulation thickness (mm)
Volume above electric element (l)
Technical data for standard HX coils
Maximum Working Pressure 850 kPa
Maximum Working Temperature 95 °C
Diameter 20NB
Standard connections
Description Abbrev. Socket
Cold water inlet CI 20mm / 3/4” BSP
Hot water outlet HO 20mm / 3/4” BSP
TPR valve connection TPR 20mm / 3/4” BSP
Drain D 20mm / 3/4” BSP
Wetback flow WF 25mm / 1” BSP
Wetback return WR 25mm / 1” BSP
Solar flow SF 20mm / 3/4” BSP
Solar return SR 20mm / 3/4” BSP
Heating circuit flow HF 20mm / 3/4” BSP
Heating circuit return HR 20mm / 3/4” BSP
Electric element E 1¼” BSP
Sensor pocket SP 7x250mm
Sigma Sheetmetal Products Limited. Subject to technical modifications Page 12