© MHG Heating Ltd
17
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone 08456 448802 Fax 08456 448803 Email
Web www.mhgheating.co.uk
010711
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)
Maximum Secondary Water
Pressure
bar (10)
(10)
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
Flue Connection
Flue Gas Outlet
Female
80mm
80mm
80mm
80mm
Combustion Air Inlet
Male
125mm
125mm
125mm
125mm
Concentrically Configured
(Straight or Elbow Adapter Required.)
Yes Yes Yes Yes
