Stuart

Stuart Aquastor Sigma SAS 305 (Discontinued)

Unvented Cylinder - Indirect

The Aquastor Sigma range of unvented indirect hot water cylinders are ideal for high demand applications and offer an all stainless steel construction to the highest standards, with a maximum operating pressure of 4.5 bar.
The Sigma range has been designed with higher demand flow rates in mind and features 1 “ BSP connections.
Available in a range of cylinder sizes with an ErP B classification.


• 1 " hot and cold water connections
• ½" temperature and pressure relief valve
• 4.5 bar maximum operating pressure
• 3 kW immersion heater
• 22 mm high performance heating coil

2 Year Warranty WRAS Approved Product UKCA-CE
Stuart Aquastor Eco SAS 305
Key Features
  • Unvented 305 litre indirect cylinder with external expansion
  • 20.0 kW high performance finned coil
  • Duplex stainless steel inner cylinder
Technical Specification
Product Code 44789
General
Warranty Internal cylinder 25 years, all other components 2 years
WRAS approval 1410052
Approvals BBA, CE, WRAS, KIWA, ISO, WRC
Features
Capacity - total 305 litres
Coils Single
Coil rating 20.0 kW
ErP class C
External expansion vessel size 50 litres
Performance
Standing heat loss @ 65 oC 1.77 kW/24h
Reheat time after 70% draw off 34 mins
Time to heat from cold to 65 oC 46 mins
Maximum operating pressure 4.5 bar
Materials
Inner cylinder Duplex stainless steel
Outer casing P200 Plastisol
Connections
Connection - cold water feed 1 " BSP M
Connection - DHW 1" BSP M
Connection - primary 22 mm
Electrical
Power supply (Vac/Ph/Hz) 230 V a.c. / 1 / 50 Hz
Power consumption 3 kW
Physical
Width 576 mm
Depth 576 mm
Height 2028 mm
Weight - including fittings 60 Kg
Weight - filled 365 Kg
GTIN 13 DIGIT 5050400447894
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