TECHNICAL MANUAL
The above picture is only for reference.
SCP PLUS
THREE PASS WET BACK HOT WATER BOILER
Page 1: ...TECHNICAL MANUAL The above picture is only for reference SCP PLUS THREE PASS WET BACK HOT WATER BOILER ...
Page 2: ...ions 3 2 2 Drawing 4 3 ACCESSORIES 5 3 1 THERMOSTATS 5 3 2 MANOMETER 5 3 3 THERMOMETER 5 4 INSTALLATION 6 4 1 BURNER 6 5 STARTING 7 5 1 PRELIMINARY CHECKS 7 5 2 WATER TREATMENT 7 5 3 FILLING THE SYSTEM 7 6 OPERATION 8 6 1 OPERATION CHECKS 8 6 2 CLEANING AND SERVICING 9 ...
Page 3: ...ion code Rated thermal output in kW Types of fuels that can be used Max operating pressure IMPORTANT This boiler has been designed to heat hot water at a temperature inferior to the boiling temperature at atmospheric pressure and must be connected to a heating plant and or a domestic hot water plant within the limits of its performance and output ...
Page 4: ...load 92 0 92 0 92 0 92 0 92 0 92 0 Efficiency 30 load 94 0 94 0 94 0 94 0 94 0 94 0 Gas flow rate G20 m h 345 403 472 575 690 805 Combustion and flue data Flue Gas Volume m min 130 5 152 2 178 3 217 4 260 9 304 4 Approx Flue Gas Temp ºC 181 181 182 181 181 181 Comb Chamber Resistance mbar 13 5 18 0 11 7 14 0 12 0 14 0 Water system Hydraulic Resistance 11k mbar 64 2 86 9 120 1 73 8 105 9 144 0 Hydr...
Page 5: ... safety pressure switch not supplied N1 Flow N2 Return N3 Fitting for instruments N4 System filling drainage N5 Connections for safety valves N6 Bulb wells N8 Inspection well N11 Fitting for level minimum probe SCP PLUS 3000 7000 NOTE drawing legend and data refer to standard models For specific models please refer to the provided accessory drawing ...
Page 6: ...te the second flame of the two stage burner The safety thermostat locks the burner at a fixed temperature value and sends out an alarm signal Restarting occurs only after the cause of the alarm has been removed and the system has be reset by operating the reset button on the switchboard 3 2 PRESSURE GAUGE The pressure gauge is Bourdon type consisting of a flat elliptical section metal tube bent to...
Page 7: ...Check that the boiler is fired by the correct type of fuel d Check that the fuel supply pressure is within the values specified on the burner rating plate e Check that the fuel supply system is sized for the maximum flow rate necessary for the boiler and that it is provided with all control and safety devices provided for by the regulations referred to above f Check that the boiler room vents are ...
Page 8: ...evel is to eliminate areas that overheat Scale creates an insulating layer which reduces the thermal transfer of the generator affecting system efficiency This means that the heat produced by burning the fuel is not fully exploited and is lost to the flue Scale diagram Key fuel not used mm mm of scale Corrosion on the water side Corrosion of the metal surfaces of the boiler on the water side is du...
Page 9: ...rature CO Gas 10 190 C 0 20 ppm Gas oil 13 195 C 10 80 ppm Heavy oil 13 5 200 C 50 150 ppm A diagram is provided in which the system efficiency is obtained according to the flue gas temperature the ambient temperature and the percentage of carbon dioxide CO2 Dispersions through the boiler casings are not considered Example Fuel used GAS OIL CO2 13 Ambient temperature 20 C Efficiency 91 4 Key Tf Fl...
Page 10: ... box while the burner is working Always wait few minutes after the burned has been switched off until the insulating parts are cooler 6 2 CLEANING AND SERVICING Close fuel supply and disconnect the electrical mains before starting any cleaning and servicing operations As economic running depends on cleaning of the exchange surfaces and regulation of the burner the following operations should be pe...
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Page 12: ...t Street Halifax HX1 4DB Tel 01422 355651 Fax 01422 359636 The data reported are indicative only and are not binding Our company reserves the right to introduce alterations at any time as it deems fit and proper for the development of the product ...
