Keston C45 - Page 9

1.5 PERFORMANCE DATA - C45 & C40P
1.6 PERFORMANCE DATA - C55 & C55P
WD536 Chapter 1 : General Instruction The Keston C45, C40P, C55 and C55P
Installation & Servicing Instructions Page : 4
C45 C40P
Nat. Gas (G20) LPG (G31)
Min. Input (Gross CV) kW/(Btu/h) 12.9/(43,900) 12.6/(43,000)
Max. Input (Gross CV) kW/(Btu/h) 45.6/(155,600) 43.2/(147,400)
Max. Output To Water
(80/60
o
C Flow/Return) kW/(Btu/h) 40.3/(137,600) 39.1/(133,300)
(50/30
o
C Flow/Return) kW/(Btu/h) 44.9/(153,400) 43.2/(147,400)
Min. Output To Water
(80/60
o
C Flow/Return) kW/(Btu/h) 11.3/(38,500) 11.4/(38,800)
(50/30
o
C Flow/Return) kW/(Btu/h) 12.6(43,000) 12.6(43,000)
Max. Burner Press.-Hot (Factory Preset) mbar/(in w.g) 0 0
Gas Consumption After 10 mins l/s / (Ft
3
/hr) 1.21/(153.4) 0.451/(57.4)
Max. Operating Flow Temp.
o
C 82.00 82.00
Max. Head (Open Systems) m / (ft) 30.50 / (100) 30.50 / (100)
Max. Press. (Sealed System) bar 2.70 2.70
Min. Head (Open Systems) m 3.0 3.0
Inlet Gas Pressure mbar/(in w.g) 20.0 / (8.0) 37.0/(14.8)
Recommended Temp Diff.
o
C 8 to 20 8 to 20
Electrical Supply 230V 50Hz 230V 50Hz
Power Consumption (Max) W 260 260
Power Consumption (Standby) W 8 8
Type of Gas G20 Natural Gas G31 LPG
Optimum Flue Gas CO
2
Level % 8.3 ±0.2 9.9 ±0.2
Expected CO/CO2 Ratio (at max rate) 0.001 0.0013
Destination Countries GB/IE GB/IE
SEDBUK Efficiency 90.4% 92.5%
C55 C55P
Nat. Gas (G20) LPG (G31)
Min. Input (Gross CV) kW/(Btu/h) 14.3/(48,800) 14.8/(50,500)
Max. Input (Gross CV) kW/(Btu/h) 56.5/(192,800) 53.4/(182,300)
Max. Output To Water
(80/60
o
C Flow/Return) kW/(Btu/h) 49.7/(169,700) 48.0/(163,900)
(50/30
o
C Flow/Return) kW/(Btu/h) 55.2/(188,500) 53.4/(182,300)
Min. Output To Water
(80/60
o
C Flow/Return) kW/(Btu/h) 12.5/(42,900) 12.9/(44,100)
(50/30
o
C Flow/Return) kW/(Btu/h) 14.3/(48,800) 14.8/(50,500)
Max. Burner Press.-Hot (Factory Preset) mbar/(in w.g) 0 0
Gas Consumption After 10 mins l/s / (Ft
3
/hr) 1.50/(190.1) 0.54/(68.3)
Max. Operating Flow Temp.
o
C 82.00 82.00
Max. Head (Open Systems) m / (ft) 30.50 / (100) 30.50 / (100)
Max. Press. (Sealed System) bar 2.70 2.70
Min. Head (Open Systems) m 3.0 3.0
Inlet Gas Pressure mbar/(in w.g) 20.0 / (8.0) 37.0/(14.8)
Recommended Temp Diff.
o
C 8 to 20 8 to 20
Electrical Supply 230V 50Hz 230V 50Hz
Power Consumption (Max) W 260 260
Power Consumption (Standby) W 8 8
Type of Gas G20 Natural Gas G31 LPG
Optimum Flue Gas CO
2
Level % 8.8 ±0.2 10.2 ±0.2
Expected CO/CO2 Ratio (at max rate) 0.001 0.0013
Destination Countries GB/IE GB/IE
SEDBUK Efficiency 90.2% 92.2%