VOKERA Compact A - Technical Data; Central Heating; Domestic Hot Water; Gas Pressures

8
SECTION 2 - TECHNICAL DATA
2.1 Central Heating Compact A 25 Compact A 29
Heat input (kW) 20.00 25.00
Maximum heat output (kW) 60/80°C 19.50 24.45
Minimum heat output (kW) 60/80°C 4.91 5.90
Maximum heat output (kW) 30/50°C 20.84 26.23
Minimum heat output (kW) 30/50°C 5.36 6.40
Minimum working pressure 0.25-0.45 bar
Maximum working pressure 2.5 bar
Minimum fl ow rate 350 l/h
2.2 Domestic Hot Water Compact A 25 Compact A 29
Heat input (kW) 25.00 29.00
Flow Rate: ΔT35°C 10.20 11.9
Maximum inlet pressure 6 bar
Minimum inlet pressure 0.15 bar
Minimum fl ow rate 2 l/min
2.3 Gas Pressures Compact A 25 Compact A 29
Inlet pressure (G20) 20.0 mbar 20.0 mbar
Heating maximum gas rate (m3/hr) 2.12 2.64
DHW maximum gas rate (m3/hr) 2.64 3.07
Minimum gas rate (m3/hr) 0.53 0.63
Injector size (mm) 5.1 5.6
Silencer fl ange (ø mm) (fi tted) 31 -
2.4 Expansion Vessel Compact A 25 Compact A 29
Capacity 8 litres
Maximum system volume 74 litres
Pre-charge pressure 1 bar
2.5 Dimensions Compact A 25 Compact A 29
Height (mm) 715
Width (mm) 405
Depth (mm) 250
Dry weight (kg) 26 27
2.6 Clearances Compact A 25 Compact A 29
Sides 12mm
Top 150mm from casing or 25mm above fl ue elbow (whichever is applicable)
Bottom 150mm
Front 600mm
2.7 Connections Compact A 25 Compact A 29
Flow & return 22mm
Gas 15mm
DHW hot & cold 15mm
Safety valve 15mm
Condense
21mm
2.8 Electrical Compact A 25 Compact A 29
Power consumption (Watts) 110 119
Voltage (V/Hz) 230/50
Internal fuse 3.15A T (for PCB) - 3.15A F (for connections block)
External fuse 3A
2.9 Flue Details (concentric 60-100) Compact A 25 Compact A 29
Maximum horizontal fl ue length (60/100mm) 5.85m 4.85m
Maximum vertical fl ue length (60/100mm) 6.85m 5.85m
2.9A Flue Details (concentric 80-125) Compact A 25 Compact A 29
Maximum horizontal fl ue length (80/125mm) 15.3m 12.8m
Maximum vertical fl ue length (80/125mm) 20.3m 17.8m
2.9B Flue Details (twin pipes) Compact A 25 Compact A 29
Maximum horizontal fl ue length (80mm/80mm) 45m/45m 40m/40m
Maximum vertical fl ue length (80mm/80mm) 45m/45m 40m/40m