VOKERA Mynute Service Manual download pdf (Page 10)

SECTION 2 - TECHNICAL DATA

2.1 Central Heating Mynute i20 Mynute i30

Heat input (kW) 20.00 30.00

Maximum heat output (kW) 60/80°C 19.62 29.25

G20 G31 G20 G31

Minimum heat output (kW) 60/80°C 2.76 3.95 3.50 4.87

Maximum heat output (kW) 30/50°C 21.44 31.77

Minimum heat output (kW) 30/50°C 3.00 4.20 3.80 5.29

Minimum working pressure 0.25-0.45 bar

Maximum working pressure

2.5 bar

Minimum ﬂ ow rate 300 l/h

2.3 Gas Pressures Mynute i20 Mynute i30

Inlet pressure (G20) 20.0 mbar

Heating maximum gas rate (m

/hr) 2.12 3.17

Minimum gas rate (m

/hr) 0.30 0.38

Injector size (mm) 4.70 ﬂ ap side - 4.20 free side 5.10 ﬂ ap side - 4.70 free side

2.4 Expansion Vessel Mynute i20 Mynute i30

Capacity 8 litres

Maximum system volume

76 litres

Pre-charge pressure 1 bar

2.5 Dimensions Mynute i20 Mynute i30

Height (mm) 780

Width (mm) 400

Depth (mm) 338 388

Dry weight (kg) 40 38

2.6 Clearances Mynute i20 Mynute i30

Sides 12mm

Top 150mm from casing or 25mm above ﬂ ue elbow (whichever is applicable)

Bottom 150mm

Front 600mm

2.7 Connections Mynute i20 Mynute i30

Flow & return 22mm

Gas 15mm

Safety valve 15mm

Condense 21mm

2.8 Electrical Mynute i20 Mynute i30

Power consumption (Watts) 102 118

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) Mynute i20 Mynute i30

Maximum horizontal ﬂ ue length (60/100mm) 7.80m 7.85m

Maximum vertical ﬂ ue length (60/100mm) 8.80m 8.85m

2.9A Flue Details (concentric 80-125) Mynute i20 Mynute i30

Maximum horizontal ﬂ ue length (80/125mm)

20m 14.85m

Maximum vertical ﬂ ue length (80/125mm) 21m 15.85m

2.9B Flue Details (twin pipes) Mynute i20 Mynute i30

Maximum horizontal ﬂ ue length (80mm/80mm) 50m/50m 38m/38m

Maximum vertical ﬂ ue length (80mm/80mm)

50m/50m 38m/38m

2.10 Efﬁ ciency Mynute i20 Mynute i30

UK (%) 2005 90.30 90.03

2.11 Emissions Mynute i20 Mynute i30

CO2 @ maximum output (%) 9.0

CO2 @ minimum output (%) 9.0

CO @ maximum output (ppm) 150

CO @ minimum output (ppm) 10 5

Nox rating class 5

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 39 40

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VOKERA Mynute Service Manual Page 10

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