Grant Spira Series - Technical Data; Boiler & Hopper Technical Data

Technical Data
8
2 Technical Data
2.1 Boiler & Hopper Technical Data
Spira Model
Model Number Units 6-26 9-36
Maximum heat Output kW 26 36
Btu/hr 88,700 122,800
Flow connection - 1" BSP (Female) 1
1
/4" BSP (Female)
Return connection - 1" BSP (Female) 1
1
/4" BSP (Female)
Water content Litres 51.5 60
Waterside resistance ΔT = 10°C mbar 26.0
Waterside resistance ΔT = 20°C mbar 9.5
Mains water (cleaning system) bar 1 bar operating pressure
Condensate connection - 1
1
/4" BSP (Female)
Conventional flue - 125mm (5") Black system
Combustion chamber draught requirement mbar 0.10 to 0.15 (running)
Maximum static head m 25
Minimum circulating head m 1
Boiler temperature set point range °C 55° to 75°C
Boiler temperature cut out point °C 65° to 80°C
Minimum return temperature °C 40°C
Water system overheat cut-out temp. °C 110°C
Burn-back overheat thermostat cut-out °C 60°C
Electricity supply - 230V~50Hz
Max operating pressure - sealed system bar 2.5 bar
Max operating pressure - open system bar 2.5 bar
Maximum auger length (bulk hopper) metres 6.0
Maximum auger speed (bulk hopper) rpm 30
Minimum flue length m 2.0
Maximum flue length m 12.0
Heating element rating Watts 450
Intermediate auger motor power Watts 55
Intermediate auger motor starting current Amps 0.64
Intermediate auger motor running current Amps 0.64
Intermediate auger speed rpm 8.1
Flue fan motor power Watts 32
Flue fan motor starting current Amps 0.27
Flue fan motor running current Amps 0.13
Cleaning solenoid power Watts 10
Cleaning solenoid current Amps 0.087
Burner fan motor power Watts 56
Total burner start current amp 2.5
Total burner run current amp 0.60