Saunier Duval SD 30e Instructions For Use Installation And Servicing Download

Page: 42 / 44

221873B

14 Replacement of Parts

7671a

Diagram 14.29

CONTROL BOARD

ROOM STAT

CLOCK TIMER

MAINS
SWITCH

THERMISTOR
(CENTRAL
HEATING)

N/O

N/C

WATER

PRESSURE

SWITCH

AIR PRESSURE

SWITCH

GAS VALVE

DIVERTER

SWITCH

SENSING

ELECTRODE

IGNITION

ELECTRODE

EARTH

ELECTRODE

PRESSURE

DIFFERENTIAL

MICRO SWITCH

DOMESTIC
HOT WATER FLOW

MICRO SWITCH

BOILER

OVERHEAT

CUT-OFF

FAN

THERMISTOR

(DOMESTIC

HOT WATER)

WHITE

BLUE

bk-

BLACK

br - BROWN

g/y- GREEN/

GREY

or-

ORANGE

RED

YELLOW

PURPLE

YELLOW

CHASSIS
EARTH

FUSED

AT 2A

PUMP

E
N
L

230V-50Hz

PERMANENT

MAINS SUPPLY

FUSED AT 3A

KEY

NOTE

g/y

X11

b bk

g/y

PLUG

NOTE 1

NOTE 2

1 Red link to be removed when external room stat is used.
2 Plug C/W link to be removed when clock timer is used. (The removed plug to be left inside the clock timer cover.)

Summary of Contents for SD 30e

Page 1: ...nufactured to the very highest standard so we are pleased to offer our customers a Comprehensive First Year Guarantee In the centre pages are to be found your Guarantee Registration Card which we reco...

Page 2: ...atibility Substances Hazardous to Health The adhesives and sealants used in this appliance are cured and give no known hazard in this state INSULATION PADS CERAMIC FIBRE GLASSYARN MINERAL WOOL These c...

Page 3: ...ly adjacent to the appliance It should be identified as to its use Alternatively a fused 3A 3 pin plug and shuttered unswitched socket may be used Thecoloursofthreecoreflexiblecableare blue neutral br...

Page 4: ...ter pressure may cause the appliance to operate momentarily this will be indicated by the pump starting and the fan speed increasing This is quite normal Domestic Hot Water Temperature The sanitary wa...

Page 5: ...year should be enough If this appliance is installed in a rented property there is a duty of care imposed on the owner of the property by the current issue of the Gas Safety Installation and Use Regu...

Page 6: ...afety Valve CAUTION A pressure relief safety valve and discharge pipe is fittedtotheboiler Thisvalvemustnotbetouched Shouldthere be any discharge from the pipe turn the boiler off isolate from the ele...

Page 7: ...rgy rating of dwellings The test data from which it has been calculated have been certified by B S I Diagram 1 1 Optional flue kits are available Horizontal top outlet and Vertical Lift Weight 31 7kg...

Page 8: ...h or shower The mains supply cable and other cables connected to the boiler must be the PVC flexible type of at least 0 75mm2 24 0 20mm 1 General Data Diagram 1 2 1 9 Heating System Controls The heati...

Page 9: ...he installation of the boiler will be in an unusual position the current issue of BS6798 gives detailed guidance on these requirements An existing cupboard or compartment modified for the purpose may...

Page 10: ...ow painted eaves or a painted gutter an aluminium shield 750mm long should be fitted immediately beneath the guttering or eaves 3 3 Flue Options There are various flue systems to choose from as follow...

Page 11: ...own in the flow diagram 4 2 This valve must be lockable and positioned so that inadvertent closure or unauthorisedinterferenceisnotpossible Thedesigndifferential can be between 11 C 20 F and 17 C 30 F...

Page 12: ...domestic hot water service must be in accordance with the rules in force in the countries of destination 5 2 Water Pressure For the minimum and maximum working pressures of the domestic hot water circ...

Page 13: ...r also to Section 5 Domestic Hot Water System Provision is made for the water connections to be connected from below or from above passing down either side of the boiler Take care that any pipework co...

Page 14: ...TENSION KIT FOAM SEAL Y plus 95mm FLUE LENGTH 2 x 1 metre extension kits may be joined together EXTENDED X plus 254mm RH flue length X plus 10mm LH flue length EASYFIT X plus 282mm RH flue length X pl...

Page 15: ...ed end If the boiler is not to be fitted for some time cover the hole in the wall 7 3 Internal Access Flue If access to the outside wall is not practical the flue system can be installed from inside U...

Page 16: ...ove the fan and flue collector assembly by pulling it forward see diagram 8 3 Remove the rear outlet restrictor plate and retain if using the rear flue outlet see diagram 8 4 REAR FLUE ONLY Fit the fl...

Page 17: ...e boiler to the service cock bracket with the screws provided in the fittings pack see diagram 8 6 An anti theft kit is available Kit No 457110 8 4 Discharge Pipe Fit the short discharge pipe to the s...

Page 18: ...LVE DISCHARGE 8080 Diagram 8 8 FITTED TO HYDRO BLOCK SERVICE COCKS 4 GAS SUPPLY SEAL PRESSURE GAUGE CONNECTION DISCHARGE PIPE 7405 Diagram 8 7 8 5 Rear Outlet Flue Fixing Make sure that the ductings d...

Page 19: ...with a screw and retaining lip Fit the flue connecting sleeve onto the fan see diagram 8 12 Fit the fan to the flue ducting Holding it up in position fit the flue collector see diagram 8 13 FLUE MAX F...

Page 20: ...2 Heating System Controls All external controls and wiring are required to provide a minimum of reinforced insulation at 250Vrms between the parts of those devices operating at mains hazardous voltag...

Page 21: ...T STAT L N R1 R2 3 AMP FUSE L N 230V 50Hz PERMANENT MAINS SUPPLY POTENTIAL FREE ROOM STAT NO FROST STAT TO BOILER RED LINK REMOVE WHEN CONNECTING SYSTEM CONTROLS 5 WAY TERMINAL BLOCK POTENTIAL FREE RO...

Page 22: ...old fill design pressure refer to Table 1 Position the set pointer on the boiler pressure gauge at this pressure also Refit inner case front 10 3 Preparation for Lighting Isolate the boiler from the m...

Page 23: ...odulationofthegaspressure iswithin 0 2mbar of 14 3mbar the central heating pressure If the burner pressure is incorrect it may be adjusted to the correct setting by turning the central heating gas pre...

Page 24: ...e then wrap it around locating it on the opposite side slide down locating on to the threaded lugs at the top and behind the controls cover at the bottom secure with nuts see diagram 10 5 Set the boil...

Page 25: ...onnected reduce the system pressure at the external draining tap turn the central heating isolating valves off and drain at the drain points on the appropriate valves see diagram 6 1 All water contain...

Page 26: ...e insulation Do not use a brush with metallic bristles Diagram 12 1 9408 BURNER SECURING SCREW 3 LEADS 3 EARTH ELECTRODE SILICONE SLEEVE 3 IGNITION ELECTRODE SENSING ELECTRODE Diagram 12 2 7306 Diagra...

Page 27: ...TROLBOARDSCANBEDAMAGED BY INCORRECT TESTING OF COMPONENTS AND WIRING WITH THE POWER ON 2 Make sure that the system pressure gauge registers 0 7bar minimum and that the automatic air vent works Refer t...

Page 28: ...TIMER 7467 Diagram 13 2 MAINS FUNCTIONAL FLOW 7670 LOW VOLTAGE FUNCTIONAL FLOW F1 T2A yellow black brown blue red brown brown brown black N OVERHEAT CUTOFF PRESSURE DIFFERENTIAL CONTROL BOARD GAS VALV...

Page 29: ...e temporarily unplugged from the electrodes and laid where they cannot spark and ignite the gas and are electrically safe This indicates that the APS changes state when the fan is run The three way va...

Page 30: ...kout L E D is illuminated press reset Check 230V supply to pump Check 230V supply to fan Check spark electrodes and cables If domestic hot water demand is still illuminated Faulty domestic hot water s...

Page 31: ...eck continuity of clock timer harness ensure an electrical supply is available ensure that remote controls are calling for heat NB The clock can be by passed by refitting the plug link which should be...

Page 32: ...supplied to ensure gas soundness see diagram 14 2 14 4 Ignition Earth and Sensing Electrode Before starting refer to Section 11 General Data Isolate the boiler from the electrical supply Remove the o...

Page 33: ...the multi pin connectors retained by clips see diagram 14 7 Remove the controls board cover see diagram 10 2 Disconnecttheremainingmulti pinconnectorretainedbyaclip Remove the control board securing s...

Page 34: ...d in the correct orientation The pump adjuster on the new pump should be set to that of the original refer also to Section 4 4 The flow rate should be controlled by means of a valve in the heating flo...

Page 35: ...ng pin ease the thermistor from its housing see diagram 14 14 14 16 Thermistor Central Heating Before starting refer to Section 11 Remove outer case front as section 11 4 Remove the two screws securin...

Page 36: ...O RING PRESSURE DIFFERENTIAL MICRO SWITCH Diagram 14 16 6987 SECURING CLIP Diagram 14 17 6983 SECURING CLIP DOMESTIC HOT WATER MICRO SWITCH REGULATOR SECURING PIN O RING 6991 DIVERTER SWITCH DIVERTER...

Page 37: ...OCK ASSEMBLY DIVERTER SWITCH SECURING PIN 1 14 Replacement of Parts SECURING PIN 6 SECURING PIN 4 and 5 SECURING PIN 2 and 3 DOMESTIC HOT WATER MICRO SWITCH LOW WATER PRESSURE SWITCH DOMESTIC HOT WATE...

Page 38: ...w one supplied Remove the expansion vessel secured with two clamping screws Connect the union nut when fitting the expansion vessel before clamping it 14 25 Automatic Air Vent Before starting refer to...

Page 39: ...mber assembly Remove heat exchanger front retaining clips Remove the heat exchanger from its retaining tabs positioned at the rear by easing it forward and up Replaceheatexchangermakingsurethatitiscor...

Page 40: ...he upper rear insulation down from behind the heat exchanger 14 28 Viewing Window Before starting refer to Section 11 Remove the old self adhesive aluminium foil gasket and the old mica window Replace...

Page 41: ...ake sure that the red tube from the fan connects to the upper connection of the switch The polarity of the electrical connections is important refer to diagram 14 29 14 31 Electro Mechanical Clock Tim...

Page 42: ...T OFF FAN THERMISTOR DOMESTIC HOT WATER w WHITE b BLUE bk BLACK br BROWN g y GREEN g GREY or ORANGE r RED y YELLOW p PURPLE YELLOW CHASSIS EARTH FUSED AT 2A PUMP E N L 230V 50Hz PERMANENT MAINS SUPPLY...

Page 43: ...ated E27213 14 202226 Fuse not illustrated 278136 15 801182 Gas control valve E27124 16 227129 Air pressure switch assy 17 801186 Automatic air vent assembly E27166 18 801208 Safety valve assembly E27...

Page 44: ...221873B Because of our constant endeavour for improvement details may vary slightly from those shown in these instructions Diagram 15 1 7007a 15 Spare Parts 9 5 11 12 8 1 16 3 4 17 18 6 9 2 7 20 10 19...

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