Saunier Duval Ecosy 2 SB 28E Operations Instructions

1ECOSYHeating and hot water for the professionalsECOSY 24 E, ECOSY 5B 24 E is CATII2H3+ appliancesECOSY 28 E, ECOSY 5B 28 E is CATI2H appliances01773

10CONNECTION PLATEECOSY 24 E, ECOSY 28 EFrom left to right, the connection plate is equipped with:A - Heating return with isolating valve (m).B - Cold

11HEATING SYSTEM DESIGN● The ECOSY boilers are compatible with any typeof installation.● Heating surfaces may consist of radiators, con-vectors or fan

12201,540 mini33421036540 mini3%Ø BØ BØ AØ AØ BØ AØ AØ A201,5DOMESTIC HOT WATER SYSTEM DESIGNECOSY 24 E/ 28 E only● Copper tubing must be used for the

13BOILER INSTALLATIONStatutory requirementsThe installation of this boiler must be carried out bya competent person in accordance with the rel-evant r

14201,540 mini33421036540 mini3%Ø BØ BØ AØ AØ BØ AØ AØ A201,5FLUE INSTALLATIONThe boiler is only suitable for top outlet flueconnection.A - Flue to re

15FLUE INSTALLATIONExtended flueThe horizontal flue is extended by using one or moreof the 1000 mm extension pipes part number 85452.These are connect

16ELECTRICAL CONNECTIONWarning. This boiler must be earthedAll system components must be of an approved type.Connection of the whole electrical system

17COMMISSIONINGThe commissioning and first firing of the boiler mustonly be done by a competent person.Gas installationIt is recommended that any air

18OPERATING SAFETY DEVICESGas leak or faultIf a gas leak or fault exists or is suspected, turn theboiler off and consult the local gas undertaking ory

19SETTINGSGas valve settingAll boilers are tested and factory set during ma-nufacture. Should it be necessary to reset a gasvalve, for example after r

2INSTALLATION AND OPERATING INSTRUCTIONSECOSY 24 E, ECOSY SB 24 EECOSY 28 E, ECOSY SB 28 ENote!The boiler serial number is marked on the label attache

20104605 E 07/99CHANGING GAS TYPENote : Conversion to a different type of gas is onlypossible with category II2H3+ appliances !Conversion to a differe

3INTRODUCTIONThe ECOSY 24 E and ECOSY 28 E boilers are wallmounted combination boilers providing centralheating and instantaneous hot water.The ECOSY

4CONTROLS AND LIGHTINGThe control panel, located at the lower front of the boiler casing, see diagram 2, allows the boiler to bestarted, shut down, co

5CONTROLS AND LIGHTINGSetting domestic hot water temperature0 6 5In all cases, by pressing the «Mode» button until the decimal point disappears, the d

6The Ecosy display has three display modes :A - Reading mode only - this gives information about the operation in progress.B - Programming mode - this

7Protection against freezingIf the boiler is to be out of use for any long periodsduring severe weather conditions, it isrecommended that the whole sy

8Heating output automatically adjustable from (kW) 6,8 6,8 8,9 8,9to (kW) 24,5 24,5 28,8 28,8from (Btu/H) 23217 23217 30386 30386to (Btu/H) 83649 8364

9227520890140373201,5BOILER SCHEMATICHab 204aDiagram 51-Automatic air vent2-Air inlet/ flue products outlet3-Heat exchanger4-Central heating flow ther