User manual SAUNIER DUVAL ECOSY 2 SB 28E 03-01

[. . . ] 221879A. 03. 01 Instructions for Use Installation and Servicing To b e l e f t w i t h t h e u s e r Ecosy 2 SB 28E G. C. 41-920-30 Condensing System Boiler This is a Cat I2H Appliance Reference in these instructions to British Standards and Statutory Regulations/Requirements apply only to the United Kingdom. For Ireland the rules in force must be used. The instructions consist of three parts, User, Installation and Servicing Instructions, which includes the Guarantee Registration Card. The instructions are an integral part of the appliance and must, to comply with the current issue of the Gas Safety (Installation and Use) Regulations, be handed to the user on completion of the installation. Guarantee Registration Thank you for installing a new Saunier Duval appliance in your home. [. . . ] Test the polarity of the mains. FROST THERMOSTAT EXTERNAL CONTROLS 6571 MAINS ELECTRICAL COVER PLATE SECURING SCREW RED LINK BLUE LINK WARNING : Mains electricty must not be connected to the black auxiliary control plug. Diagram 9. 3 6596 Diagram 9. 1 6531 MAINS ELECTRICAL SUPPLY SOCKET BRACKET EARTH APPLIANCE PLUG COVER PLATE SCREW (L) LIVE (N) NEUTRAL MAINS IN SUPPLY PLUG 17 Diagram 9. 2 Diagram 9. 4 221879A 9380 10 Commissioning Please ensure the "Benchmark" logbook is completed and left with the user. The boiler will continue firing in central heating mode until the user controls; ie. time clock or room thermostat are satisfied. 10. 1 Filling the Heating Circuit Open the two central heating isolating valves, slots in line with the length of the valve, see diagram 7. 1. Make sure that the automatic air vent is operating correctly, see diagram 10. 1, and that the black cap is loosely fitted to allow air to escape. Pressurise the system until the pressure gauge reads at least 1. 0bar (14. 5lbf/in2), see diagram 1. Check the heating system and boiler for water soundness. 10. 4 Gas Pressure The gas valve is factory set and should need no adjustment. It should be checked that the supply pressure is 20mb when the boiler is firing at full rate, measured on the gas valve as shown in diagram 10. 2. Note that the burner pressure cannot be measured at the gas valve as it is altered by the suction of the fan and modulated according to demand. 9265 10. 5 Testing - Heating System Check that all remote controls are calling for heat. Fully open all radiator valves, flow control valve `A' and additional bypass valve `B' if fitted, see diagram 4. 2. Balance the radiators as required and if fitted adjust valve `A' to give the required system differential. Turn off all radiators that can be shut off by the user and adjust the boiler bypass if necessary to achieve less than the maximum differential allowed of 20°C across flow and return. If this is not possible, a separate system bypass must be fitted and adjusted to achieve less than maximum differential. Refer to section 4. 3 and diagram 4. 2. AUTOMATIC AIR VENT Diagram 10. 1 Allow the system to reach maximum temperature then switch off the boiler by isolating from the electrical supply. Drain the entire system rapidly whilst hot, using the drain tap at the lowest part of the system. Lock or remove the handles from controls valve `A' and bypass valve `B' if fitted to prevent unauthorised adjustment. 10. 2 Preparation for Lighting Isolate the boiler from the mains electrical supply. Turn on the gas isolation valve, slot in line with the length of the valve, see diagram 7. 1. 10. 3 Initial Lighting The lighting procedure of the boiler is fully automated. After a short delay the digital display on the fascia should illuminate, see diagram 1 in Instructions for Use. The fan should start and after a few seconds the ignition will commence. If the burner fails to light the fan will stop and the display will flash '0' and then '2*'. This indicates the boiler has failed to light, which initially may be due to air in the gas supply line. Press the `reset' button and the boiler will restart, see diagram 1 in Instructions for Use. 10. 6 User Control Door - Fitting Take the control door, which was removed from the top of the boiler carton and fit the the two brass lugs. Push the lugs into the slots at the bottom of the fascia to engage, see diagram 10. 3. 10. 7 User Controls and Options The Ecosy 2 SB 28E has a multifunctional single digit display and two control buttons labelled `mode' and `reset', see diagram 1 in Instructions for Use. [. . . ] Remove the automatic air vent pipe from the top right hand side of the heat exchanger. Unscrew the heat exchanger condense pipe from the base of the heat exchanger. Undo the heat exchanger flow pipe connection from the bottom left hand side of the boiler. Undo and remove the return pipe locking plate from the rear panel below the heat exchanger and pull the return pipe down and out of the casting. [. . . ]