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. [. . . ] The `reset' button is used to restart the boiler after a fault condition has occurred, ie. ignition failure, low water pressure or high water temperature. The `mode' button allows the user to view the operating conditions of the boiler, or if necessary change the central heating temperatures to a preferred setting. The boiler is factory pre-set to supply central heating up to 70°C. 221879A 18 10 Commissioning 9059 Repeated pressing of the 'mode' button gives the display sequence shown in diagram 10. 4. If a different option is required, repeatedly press the `mode' button until the required symbol is shown, and then press and hold the `mode' button for two seconds. The decimal point will flash to confirm selection. Note: If no buttons are pressed the display reverts to show boiler temperature after approximately two minutes. PROTECTIVE CAP Temperature Display The boiler normally shows the operating temperature of the unit on the digital display. However, because the display consists of only one digit, temperature is represented in blocks of ten degrees as follows. PRESSURE TEST POINT ELECTRICAL CONNECTIONS DISPLAY 0 1 2 3 4 5 6 7 8 9 TEMPERATURE RANGE (°C) Min 6 16 26 36 46 56 66 76 86 5 15 25 35 45 55 65 75 85 Max Diagram 10. 2 Temperature Options There are four central heating options to choose from. These options are shown on the digital display by repeated pressing of the `mode' button. The selected options are indicated by a flashing decimal point. Only one central heating option can be selected at any one time. For adaptive control, see section 10. 9. The decimal point after the digit signifies that the boiler is firing. BRASS LUGS CONTROL DOOR Diagram 10. 3 19 221879A 9251 This information is also supplied on the inside of the control door. 6566 10 Commissioning Control Options There are two control options available: Normal mode and Holiday mode, see diagram 10. 4. Normal mode uses the central heating temperatures selected. Holiday mode shuts down the central heating. However, frost protection and pump exercise programme remain active. To resume normal operation after a holiday period, select `Normal . Mode', If an external frost thermostat is fitted `Holiday Mode' should not be selected during periods of cold weather. Turn the central heating off at the programmer or reduce the room thermostat temp to a low setting. This will allow the external frost thermostat to operate the boiler, see section 10. 13 for 'frost protection'. Minimum Input Lock This function allows the service engineer to lock the appliance into delivering minimum heat input to enable accurate combustion analysis. Maximum Input Lock This function allows the service engineer to lock the appliance into delivering maximum heat input to enable accurate combustion analysis. See section 11. 6 for details of checking combustion. Both input locks are not permanent and revert to normal operation after approximately 15 minutes. The boiler can be manually reverted at any time by pressing the `Reset' button. [. . . ] When replacing the gauge, ensure that the location pin engages in the slot in the fascia. Check for leaks. 13. 14 Expansion Vessel Refer to section 11. 8 and drain the boiler heating circuit Undo the coupling at the base of the vessel. While holding the vessel undo the securing bolt on the top panel of the boiler. Remove the expansion vessel from the boiler taking care not to lose the securing bolt spacer from the top of the unit. [. . . ]