User manual SAUNIER DUVAL ISOFAST F 28 E

[. . . ] Heating and hot water for the professionals ISOFAST IN WARRANTY TECHNICAL HELPLINE THIS IS A CAT I2E+ APPLIANCE 01773 828400 01773 828100 1 INSTALLATION AND OPERATING INSTRUCTIONS ISOFAST F 28 E - ISOFAST F 35 E Note!The boiler serial number is marked on the label attached to the inside of the drop down door. Refer to the 'Introduction' section page 3 for a description of the basic functions of the boiler. The 'Users' section describes how to safely operate the boiler. USERS SECTION Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] q Remove the blanking plug from the front of the control panel to gain access to the heating adjusting screw. q Adjust the heating output by turning the screw clockwise to increase, anti-clockwise to decrease. Note: Adjustment of the heating output does not affect the domestic hot water output. For kW to Btu/hr conversion refer to table 5. Table 5 kW to Btu/hr conversion Setting the heating output 2 5s Diagram 20 Setting the heating output Adjustment screw kW 10 12 14 16 18 kW 30 32 34 35 Btu/hr 34, 120 40, 940 47, 770 54, 590 61, 420 Btu/hr 102, 360 109, 180 116, 000 119, 420 kW 20 22 24 26 28 Btu/hr 68, 240 75, 060 81, 890 88, 710 95, 540 The heating output, in kW, is shown on the display. Diagram 21 Setting the maximum heating temperature The maximum heating temperature can be preset at commissioning stage to suit the type of heating system. For example, for use with underfloor heating, the maximum heating temperature can be set to 53°C. To adjust the maximum temperature, proceed as follows: q Remove the blanking plug (b) from the rear of the control panel to gain acess to selector switch SW1 (see diagram 22). Adjust toggles 1 and 2 to give the desired maximum heating temperature, see diagram Note: To adjust the maximum heating temperature it is only necessary to change toggles 1 and 2. q Refit blanking plug. b Reg 053 ° SW1 Diagram 22 O N 1234567 1=ON, 2=ON § 53°C. Factory setting § 73°C. SAFETY DEVICES The ISOFAST incorporates a visual display that indicates fault conditions, should they occur. In the event of a fault, the diplay will indicate, by means of pictograms and/or letters and numbers, exactly in which area the fault lies. Should the boiler fail to operate during Commissioning, the most likely fault is that the gas supply to the boiler has not been turned on or purged sufficiently or that there is no pressure in the heating system. These are indicated as follows : 17 Reg 052 Reg 051/UK 1 20 01 mode SAFETY DEVICES No gas supply § This will be indicated on the display as a pictogram of a spark. To rectify this, proceed as follows: Switch off the boiler at the On/ Off push button. q Restart the boiler by pressing the On/Off button. q General safety devices Air flow rate safety device If an obstruction, even partial, of the flue occurs, for any reason whatsoever, the built in safety system of the boiler will turn the boiler OFF and the fan will continue to run. Overheat safety In case of boiler overheating, the overheat thermostat will turn the boiler off. The thermostat, located on the heat exchanger flow pipe, will need to be manually reset. As soon as power supply is restored, the boiler will be automatically restarted. Frost protection The ISOFAST has a built in frost protection device that protects the boiler from freezing. If the boiler is to be left and there is a risk of frost, ensure that the gas and electrical supplies are left connected. The frost protection device will light the boiler when the temperature of the boiler water falls below 6°C. Note : This device works irrespective of any room thermostat setting and will protect the complete heating system. O I 1 -------------------------Insufficient system pressure This will be indicated on the display as a flashing warning indicating the system bar pressure is low. To rectify this the system must be re-filled, refer to 'Commissioning'. 0. 3 -------------------------Other faults These are indicated on the display by a fault code and a telephone symbol. [. . . ] (BTU/H) 94, 170 118, 053 Efficiency (%) 82 83 Maximum heating temperature (°C) 87 87 Expansion vessel effective capacity (l) 7 12 Expansion vessel charge pressure (bar) 0, 5 0, 5 Maximum system capacity at 75°C (l) 160 275 Safety valve, maximum service pressure (bar) 3 3 Products outlet diameter (mm) 60 60 Fresh air inlet diameter (mm) 100 100 Hot water output automatically variable from . . . (BTU/H) 94, 170 118, 053 Maximum hot water temperature (°C) 60 60 Specific flow rate (for 30°C temp rise) (l/min. ) 13, 2 16, 5 Threshold flow rate (l/min. ) 1 1 Nominal water flow rate (l/min. ) 11, 3 16, 5 Maximum supply pressure (bar) 8 8 Minimum operating pressure (bar) 0, 7 0, 7 Natural Gas (G20) Ø Burner injector Electrical supply Maximum absorbed power Level of protection (V) (W) 230 220 IP44 230 220 IP44 Inlet pressure Burner pressure Gas rate maximum Gas rate minimum (mm) (mbar) (mbar) (m3/h) (m3/h) 1, 20 20 13, 8 3, 20 1, 32 Pump 28 kW 60 Pump 35 kW 80 Available pressure (kPa) between heating supply and return lines Available pressure (kPa) between heating supply and return lines 50 40 30 20 1 2 3 4 5 70 60 50 40 30 Pom 058 5 4 3 2 1 10 0 0 200 400 600 800 1000 1200 Pom 010 a 20 10 0 0 200 400 600 800 1000 Flow rate through heating system (I/h) (10 kPa = 1 m WG) (10 kPa = 1 m WG) Flow rate through heating system (I/h) 1 Bypass fully shut 2 Open 1/4 turn 3 Open 1/2 turn 4 Open 1 turn 5 Open 2 turns 27 SCHEMATIC WIRING DIAGRAM Ramoneur B61 B63 B64 B62 B81 B82 B33 B12 B29 B210 B211 B113 B114 B115 B17 B18 P Pr Opt. H61 H6. 2 B24 h8. 1 h8. 2 h4. 1 Db L N M/A L1 Cp R h4. 3 h3. 1 Ex h3. 3 h1. 1 B110 B31 B32 B33 B34 B26 h1. 2 h2. 4 h2. 2 h2. 3 h2. 5 h2. 1 V CH 3 COM V SAN 1 2 h5. 2 h5. 3 h5. 1 B28 B27 b51 b52 b54 b55 B25 B15 B16 B14 B13 V1 J1 1 2 3 4 5 TA Ra P K4 CTN 3 CTN 2 CTN 1 10 11 DA N 9 Ph 8 ACF Flam B35 B41 B42 B43 B44 B73 B72 B71 B36 B24 B21 B22 GND S FA FL INTERFACE CD SE Ve Vitesse Extracteur (option) M/A L1 P ACF DA Flam R V3V CH COM SAN INTERFACE CD SE - ON/OFF switch Mains light Pump Gas valve module Lighting demand Safety light Flame sense contacts MICROFAST® heating element 3 way-valve Heating common Domestic User display Remote control (if fitted) Outside sensor (if fitted) HL Db Cp V1 J1 TA FA FL CTN1 CTN2 CTN3 K4 Pr Ex - Clock Domestic flow sensor System pressure sensor Modulating coil Room thermostat connection Room thermostat Ignition electrodes Flame sense electrode Domestic thermistor Heating thermistor Storage cylinder thermistor High limit thermostat Air pressure switch Fan Diagram 14 28 xxx xxx Sch 185a HL FAULT FINDING Before trying to operate the boiler make sure that : · All gas supply cocks are open and that the gas supply has been purged of air. Always isolate the boiler from the electrical supply before carrying out any electrical replacement work. Should there be any doubt about the voltage supply to any of the components, it is possible to carry out a simple electrical test to ensure all is operational in that area. [. . . ]