User manual SAUNIER DUVAL ISOMAX F 28 E

[. . . ] ISOMAX IN WARRANTY TECHNICAL HELPLINE THIS IS A CAT I2E+ APPLIANCE 01773 828400 01773 828100 1 INSTALLATION AND OPERATING INSTRUCTIONS ISOMAX F 28 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If not, the system must be filled by a competent person. O I 1 1. 5 bar To stop the boiler : Press button (1) Setting to the WINTER position (Heating + hot water) Press the mode pour sélectionner la winter symbol Appuyer sur mode button to select the position hiver mode 2 10 °C 1. 5 bar mode The actual temperature Température actuelle of the le circuit chauffage dans heating system Illuminates when Apparaît lorsque le the boiler lights brûleur fonctionne Adjusting the heating temperature Press + or - to ou - pour maximum temperature Appuyer sur + adjust the ajuster la température of the heating (38°C to 87°C) maximale souhaitée du circuit chauffage Visual indication température demandée Visualisation de laof set temperature Adjust heating temperature to maximum . Check that any external controls, if fitted, are calling for heat (set room thermostat to maximum). q Allow the temperature to rise to the maximum value, with all radiator valves open. The temperature rise will cause release of the gases contained in the water of the central heating system. q Gases driven towards the boiler will be automatically released through the automatic air vent. q The gases trapped at the highest point of the system must be released by bleeding the radiators. On reaching maximum temperature, the boiler should be turned off and the system drained as rapidly as possible whilst still hot. q Refill system to a pressure of between 1 and 2 bar and vent as before. If necessary, top up heating system and make sure that a pressure of at least 1 bar is indicated when system is COLD. q q 3 Hab 261 60°C mode 17 Hab 264 COMMISSIONING Setting the heating output The heating output can be set without the use of a pressure gauge; proceed as follows: q Press the display light button and keep pressed for 5 seconds, see diagram 20. Note:The boiler has now been put into 'Service Mode', allowing certain adjustments to be made and diagnostic fault codes to be displayed. The heating output, in kW, is shown on the left hand side of the display, see diagram 21. 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: 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. 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 ISOMAX incorporates a visual display that indicates fault conditions, should they occur. In the event of a fault, the display 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. [. . . ] · Supporting expansion vessel, unscrew and remove screw securing expansion vessel to boiler. · Fit replacement vessel to boiler in reverse order to removal, ensuring that sealing washer is fitted to pipe connection before tightening. · Ensure that expansion vessel charge pressure is 0. 5 bar (7. 5 psi) using a pressure gauge. If necessary, increase pressure using a car or cycle tyre pump connected to the Schrader valve. [. . . ]