Saunier Duval ISOFAST F 28 E Installation And Operating Instructions Manual

24, 24 REPLACEMENT OF PARTS Mec 111 • Remove screw securing cover onto gas valve module, see diagram 9. • Remove cover and disconnect multi-plug from module. • Disconnect ignition and flame sense leads from module. • Withdraw module from gas valve. • Fit replacement module, ensuring it…

16, 16 COMMISSIONING To stop the boiler : Press button (1) Make sure that: ● The boiler is connected to the electrical supply. ● The gas service cock is open. Then follow the instructions below : Press the On/Off button (1) Hab 264 1 IO 1.5 bar mode 0 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 6 1…

25, 25 REPLACEMENT OF PARTS • Remove slotted metal clips from heat exchanger con- nection pipes. • Undo nut securing pipe from heat exchanger to 3- way valve/bypass housing. • Swing pipe away from 3-way valve/bypass housing and pull down to disengage from heat exchanger pipe. • Pull down pipe fr…

1, 1 Heating and hot water for the professionals ISOFAST THIS IS A CAT I2E+ APPLIANCE 01773 828100 IN WARRANTY TECHNICAL HELPLINE 01773 828400 …

9, Saunier Duval ISOFAST F 28 E 9 FIXING JIG C- Heating flow fitting with isolating valve (q), drain knob (r) and safety valve (s1). D- Domestic hot water outlet fitting with safety valve (s2). F- Gas fitting. G- Filling device. Sch 173a The fixing jig is made up, from left to right, as fol- lows: A- Heating return fitting wi…

19, 19 SETTINGS Gas valve setting All boilers are tested and factory set during manu- facture. Should it be necessary to reset a gas valve, for example, after replacement, proceed as fol- lows: ● Shut down boiler. Minimum setting ● Remove one electrical connector from the modulating gas valve…