WATER SIDE RESISTANCE
Flow Rate To Give A Nominal Output At
10K Differential
90 120
Flow Rate Measured 2135 kg/h 2874 kg/h
Waterside Resistance 0.18 mbar 0.18 mbar
Flow Rate To Give A Nominal Output At
20K Differential
90 120
Flow Rate Measured 1131 kg/h 1523 kg/h
Waterside Resistance 0.19 mbar 0.19 mbar
HEAT OUTPUT btu/hr
kW
90
26
120
35
CONNECTIONS - -
Heating Flow 22 mm dia. 28 mm dia.
Heating Return
1” BSP 1” BSP
Mains Cold Feed (Copper) 15 mm dia. 15 mm dia.
Drain Off Valve ½” BSP ½” BSP
Safety Pressure Valve Outlet (Copper) 15 mm dia. 15 mm dia.
CIRCULATING PUMP 25/60 25/60
Integral Expansion Vessel Normal Capacity 12 litres 12 litres
Expansion Vessel Pre-charge Pressure 1 bar 1 bar
Low Pressure Water Switch?
✔ ✔
Filling Loop Included?
✔ ✔
WATER CONTENT - -
Boiler 24 litres 24 litres
FLUE (INDOOR BOILERS) - -
Balanced Flue Assembly 125 (5”) mm dia. 125 (5”) mm dia.
Max. Low Level Flue Length 1.5m 1.5m
Max. High Level Balanced Flue Length 6m 6m
HEATING SYSTEM (SEALED) Fit in accordance with BS 7074 Part 1, BS 5449, OFTEC standards and all other relevant legislation.
Max. Operating Pressure 2 bar 2 bar
Max. System Pressure Cold 1 bar 1 bar
Min. System Pressure Cold 0.5 bar 0.5 bar
Preset Pressure Relief Valve 3 bar 3 bar
4 4.3 SYSTEM BOILER - TECHNICAL DETAILS
20
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