Grant Vortex Eco 21/26 - 2.8 Electricity Supply; 2.9 Sealed Central Heating System

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2 Technical Data
2.1 Boiler Technical Data - Vortex Eco
Model Unit 15/21 21/26 26/35
Water content litre 13 13 19
gal 2.9 2.9 4.2
Weight (dry) *
External modules
kg 113 (external module)
136 ( external system)
113 (external module)
136 ( external system)
142 (external module)
152 ( external system)
lb 249 (external module)
300 ( external system)
249 (external module)
300 ( external system)
313 (external module)
335 ( external system)
Flow connection 22 mm 22 mm 22 mm
Return connection 22 mm 22 mm 22 mm
Min. flow rate (∆ T=10°C) l/h l/h 1 780 2 200 2 980
Min. flow rate (∆ T=20°C) l/h l/h 890 1 100 1 490
Condensate connection 22 mm (only connect plastic)
Flue diameter (conventional) 100 mm
Waterside resistance ∆T=10°C mbar 28.5
Waterside resistance ∆T=20°C mbar 10
Maximum static head m 28
Minimum circulating head m 1
Boiler thermostat range °C 65 to 75
Limit (safety) stat shut off temp. °C 111 ± 3
Max. hearth temperature °C Less than 50
Electricity supply 230/240 V ~ 50 Hz fused at 5 Amp
Motor power Watts 90
Starting current Amps 4.2
Running current Amps 0.85
Oil connection ¼ BSP Male (on end of flexible fuel hose)
Conventional flue draught N/m² Minimum 8.7 - Maximum 37
in wg Minimum 0.035 - Maximum 0.15
Maximum operating pressure - sealed system bar 2.0
Maximum operating pressure - open system bar 2.0
Maximum operating pressure - pressure relief
valve
bar 2.5
* Weight includes burner but excludes flue.