ATAG iSteel Unvented Cylinders

PRODUCT INFORMATION

Available in direct or indirect and various sizes ranging from 90-300 litres capacity and compatible with the ATAG iS system and iR regular boilers.

  • 25-year warranty
  • 2-year warranty on cylinder components
  • Quick heat up recovery time
  • Part ‘L’ compliant
  • Efficient ErP ‘B’ banding

Direct – Technical Information

Product 90 D 120 D 150 D 180 D 210 D 250 D 300 D
Part Number CY500090 CY500120 CY500150 CY500180 CY500210 CY500250 CY500300
Capacity (ltrs) 90 120 150 180 210 250 300
Height(mm) 760 940 1140 1320 1510 1720 1980
Diameter(mm) 545 545 545 545 545 595 595
Weight Empty(kg) 23 27 31 35 39 48 55
Weight Full (kg) 111 145 179 213 247 296 352
Indirect Reheat (mins) 12 16 17 20 22 25 34
Immersion Reheat (mins) 53 80 106 136 167 213 385
Heat Exchanger (kW) 16.46 16.46 18.55 18.55 18.55 22 22
Standing Loss (kWh/day) 0.96 1.11 1.26 1.40 1.54 1.76 2.03
Cold Inlet 195 195 195 195 195 195 195
Immersion 1 345 345 340 340 365 365 365
Immersion 2 965 980
Sec. Return 1160 1410 1605
T&P valve 525 710 890 1085 1265 1520 1780

Indirect – Technical Information

Product 90 I 120 I 150 I 180 I 210 I 250 I 300 I
Performance Data:
Part Number CY600090 CY600120 CY600150 CY600180 CY600210 CY600250 CY600300
Capacity (ltrs) 90 120 150 180 210 250 300
Height(mm) 720 900 1100 1280 1470 1720 1980
Diameter(mm) 545 545 545 545 545 595 595
Weight Empty(kg) 21 25 29 33 37 43 50
Weight Full (kg) 109 143 177 211 245 291 347
Indirect Reheat (mins) 12 16 17 20 22 25 34
Immersion Reheat (mins) 53 80 106 136 167 213 285
Heat Exchanger (kW) 16.46 16.46 18.55 18.55 18.55 22 22
Standing Loss (kWh/day) 1.07 1.23 1.41 1.53 1.80 2.15 2.28
Tapping Heights:
Cold Inlet 195 195 195 195 195 195 195
Bottom Coil 305 305 340 340 365 365 365
Immersion 1 345 345 380 380 410 410 410
Stat Pocket 360 360 395 395 475 475 475
Immersion 2 965 980
Sec. Return 1160 1410 1605
T&P valve 525 710 890 1085 1265 1520 1780
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"ATAG boilers are the way forward. Great support & back up they only sell direct to Gas Safe Registered installers."
Ongas
"I have had my ATAG boiler for a while, it's very simple to use and the efficiency of the boiler is very good. I can recommend ATAG boiler to all my friends without any problems at all."
Mr Fereday
"Best decision I made in having it installed. Works efficiently for my family and our requirements"
Mrs Simmons St Albans, Herts