Technical data

© MHS Boilers Ltd
221106 Draft Copy E&OE
9
Technical Data
Technical Data 150 225
Nominal Heat Input Net Min/Max kW 15.0/149.2 15.0/216.0
Nominal Heat Output
(50ºC/30ºC)
Min/Max kW 16.0/155.0 16.0/225.0
Nominal Heat Output
(80ºC/60ºC)
Min/Max kW 14.5/143.2 14.5/206.0
Design Water Flow Rate Ltr/sec 1.8 2.66
Residual Head from In-built
Pumps (Cascade version
only)
kPa 15.0 15.0
Maximum Input Gas Rate G20
G31
m³/hr
m³/hr
15.0
5.77
21.7
8.35
Gas Inlet Pressure Min/Max mbar 18.0/50.0 18.0/50.0
Maximum Flue Gas Mass G20 (Hot) Kg/hr 250.9 363.6
Maximum Flue Gas Mass G31 (Hot) Kg/hr 231.4 335.1
Residual Fan Pressure Pa 200 200
Maximum Water Pressure (Hot) bar 3.0 3.0
Minimum Water Pressure (Cold) bar 1.0 1.0
Maximum Flow Temperature ºC 90 90
Power Supply (240 V / 50
Hz)
Amps 7 7
Max Power Consumption Watts 690 800
Water Content Ltrs 30 35
Lift Weight (Dry) kg 250 270
Lift Weight (Wet) kg 280 305
Efficiency @ Full Load
Gross
% 86.48 85.67
Efficiency @ 30% of Full
Load Gross
% 98.20 98.37
NOx emission @ 0% O
2
Mg/kW
h
26.7 (Class 5)
Flue Classification B23, C33, C43, C53, C63, C83.
Connections
HTG Primary Flow PN6 DN 40 DN 40
HTG Primary Return PN6 DN 40 DN 40
Gas BSP R1.25” R1.25”
Flue Connection DN 160 DN 160
Combustion Air Connection DN 125 DN 125
Condensate Outlet Plastic 20mm 20mm
Please note that the condensate disposal system must be installed in Plastic or Stainless
Steel. (Copper is not acceptable.)