User manual SAUNIER DUVAL ECOSY 2 28 E 03-01

[. . . ] 221874A. 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 28E G. C. 47-920-29 Condensing Combination 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. [. . . ] 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 domestic hot water and one central heating option can be selected at any one time. The decimal point after the digit signifies that the boiler is firing. This information is also supplied on the inside of the control door. 6566 For adaptive control, see section 11. 10. BRASS LUGS CONTROL DOOR Diagram 11. 3 21 221874A 9251 11 Commissioning Control Options There are two control options available: Normal mode and Holiday mode, see diagram 11. 4. Normal mode uses the domestic hot water and central heating temperatures selected. Holiday mode shuts down the domestic hot water and central heating. However, frost protection and pump exercise programme remain active. holiday period, select `Normal Mode', If an external frost thermostat is fitted `Holiday Mode' should not be selected during periods of cold weather. Select setting to turn off the domestic hot water and turn The current function that the boiler is performing is shown by a number with a flashing decimal point, see table below. 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 12. 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. The display automatically reverts to show temperature after approximately two minutes. 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 11. 14 for 'frost protection'. 11. 9 Servicing Options There are four options available to the service engineer, which are not to be used by the user, see diagram 11. 4. They are as follows: 11. 10 Adaptive Control Adaptive Control is an advanced control feature that requires the interaction of a room thermostat. It is used in two out of the four central heating options and allows the boiler to optimise the heat output. This enables the boiler to operate at much lower temperatures and hence be more fuel efficient. If a room thermostat is not fitted when using these modes the boiler will revert to standard modulation at the temperatures given in diagram 11. 4. When the boiler fires from cold with the adaptive control active, it fires at low rate for ten minutes before ramping up to full rate. Installation Mode This allows interrogation of the appliance by an authorised engineer, via the connection of a P. C. After using the installation mode, normal operation of the appliance can be resumed by reselecting 'Normal mode', . Operating Function OPERATING FUNCTION DISPLAY ACTION No demand. Boiler is off after reaching temperature. Boiler safety shut down. 6574 22 For details of wiring in a room thermostat refer to section 10. 2 and diagram 10. 3. 11. 11 Outside Sensor If an outside sensor is fitted the boiler adjusts the flow temperature to compensate for variations in external temperature. [. . . ] Remove the air pressure switch as described in section 14. 20. Remove the wire clip on the internal flue adaptor pipe and pull the adaptor pipe down into the flue outlet pipe, see diagram 7. 5. Pull the flue outlet pipe out of the heat exchanger. Remove the automatic air vent pipe from the top right hand side of the heat exchanger. [. . . ]