Technical data

© MHG Heating Ltd
17
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone [phone] Fax [phone] Email [e-mail]
Web www.mhgheating.co.uk
010109
5.0 Technical Data
Technical Data Units
16 H &
HS
27 H &
HS & (S)
47 H &
(S)
75 & 77
H & HM
Nominal Heat Input Net Min/Max kW 4.0/15.0 6.5/25.0 12.0/45.0 15.0/70.0
Nominal Heat Input Gross Min/Max kW 4.4/16.5 7.2/27.5 13.2/49.5 16.5/77.0
Carbon Emissions
100% Of max Output
G20
G31
kgC/kWhr
kgC/kWhr
0.061
0.078
0.061
0.078
0.061
0.078
0.060
0.077
Carbon Emissions
30% Of max Output
G20
G31
kgC/kWhr
kgC/kWhr
0.055
0.070
0.055
0.070
0.055
0.070
0.055
0.070
SEDBUK Rating B B B B
Operating Efficiency (40ºC/30ºC) % 108.8 108.7 108.5 108.5
Nominal Heat Output (50ºC/30ºC) Min/Max kW 4.3/15.8 7.0/26.2 12.9/47.0 16.0/74.6
Design Flow Rate (50ºC/30ºC) Ltr/sec 0.188 0.312 0.560 0.880
Nominal Heat Output (80ºC/60ºC) Min/Max kW 3.7/14.5 6.3/24.2 11.7/43.5 14.5/67.8
Design Flow Rate (80ºC/60ºC) Ltr/sec 0.172 0.288 0.519 0.807
Hot Water Generation Output kW (31.3) (45)
Hot water flow rate @ DT 30
)
C Ltr/min (15) (20)
Min Flow Rate For H/W Activation Ltr/min (3) (3)
Minimum Flow Rate Ltr/sec 0.125 0.246 0.373 0.592
Residual Head from In-built Pump m/W.C 3.7 1.3 0.5 0.75
Maximum Input Gas Rate G20
G31
m³/hr
m³/hr
1.55
0.57
2.55
1.00
4.65
1.72
6.91
2.60
Gas Inlet Pressure Min/Max Mbar 18.0/50.0 18.0/50.0 18.0/50.0 18.0/50.0
Maximum Flue Gas Volume (Hot) m³/hr 21.36 40.81 64.08 96.84
Available Fan Pressure Pa 400 400 400 400
Maximum Water Pressure (Hot) bar 3.0 3.0 3.0 3.0
Minimum Water Pressure (Cold) bar 0.8 0.8 0.8 0.8
Maximum Flow Temperature ºC 90 90 90 90
Power Supply (230 V / 50 Hz) Amps 5 5 5 5
Max Power Consumption Watts 122 129 145 250
Water Content Ltrs 4 5.2 5.2 8.2
Lift Weight (Dry) kg 43.0 43.0 43.0 70.0