Ravenheat Little Star LS 80 Installation And Servicing Instructions Download Page 3

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Supplied By www.heating spares.co Tel. 0161 620 6677

SECTIONS:

TABLE OF CONTENTS

INTRODUCTION

3
4
5
6
7
8
9

10
11

GENERAL LAYOUT

Fig. 1

DESIGN PRINCIPLES AND

OPERATING SEQUENCE

TECHNICAL DATA

GENERAL REQUIREMENTS

INSTALLATION

COMMISSIONING
SERVICING INSTRUCTIONS

FAULT FINDING
ELECTRICAL SYSTEM DIAGRAM
EXPLODED PARTS DIAGRAM
LIST OF SPARE PARTS

PAGE:

8 - 9 - 1 0

16
25
30
43
45
47
48

KEY

1 - Heat exchanger

3 - Burner
4 - Ignition electrode
5 - Flue restriction ring
7 - Ignition board
9 - Detection electrode

11 - Frame
12 - Modulating gas valve
15 - Heating control

16 - Hot water control

30 - Water pressure gauge

17 - D.H.W. sensor

33 - Main switch

18 - Water pressure switch (heating circuit)

34 - C.H. Sensor

22 - Overheat cut off thermostat

36 - Fan

23 - Safety relief systems

37 - Expansion tank

24 - Three way valve

38 - Sealed chamber

26 - Auto air vent valve

45 - Combustion chamber

28 - Air pressure switch

50 - Flue gas exhaust hood

29 - Circulation pump

105 - Timer

Summary of Contents for Little Star LS 80

Page 1: ...ater Fitting Byelaws Scheme WITH TIMER LS 80T G C N o 4758130 NAT 4758132 LPG LS 1OOT G C N o 4758134 NAT 4758136 LPG NATURAL GAS G20 I 2H II 2H3 LPG G30 G31 I 3 II 2H3 INSTALLATION AND SERVICING INST...

Page 2: ...mestic hot water High reliability diverter valve with ethylene propylene diaphragm permitting primary flow circu lation in the boiler during domestic hot water supply Built in frost protection Printed...

Page 3: ...1 16 25 30 43 45 47 48 KEY 1 Heat exchanger 3 Burner 4 Ignition electrode 5 Flue restriction ring 7 Ignition board 9 Detection electrode 11 Frame 12 Modulating gas valve 15 Heating control 16 Hot wate...

Page 4: ...Twin header 9 Detection electrode 10 Straight header 12 Modulating gas valve 15 Heating control potentiometer 16 Hot water control potentiometer 17 Water pressure switch 18 Overheat cut off thermostat...

Page 5: ...pump and fan are also switched off the pressure switch returning to its rest mode 2 2 6 2 2 7 2 2 8 2 2 9 2 3 2 3 1 2 3 2 2 3 3 2 3 4 2 3 5 2 3 6 2 3 7 Central heating mode If the switch is positioned...

Page 6: ...alve excludes the cen for heat to the central heating system or tral heating circuit the boiler automatically until the room thermostat time clock modulates to maintain the domestic hot demands for he...

Page 7: ...compression isolating valve 15 mm copper pipe 15 mm copper pipe MAX COLD WATER CAPACITY WITHOUT ADDITIONAL EXPANSION VESSEL SEALED WATER SYSTEM C H MAX PRESSURE PHS 2 5 bar MINIMUM WORKING PRESSURE 0...

Page 8: ...TION D H W 15 mm compression isolating valve OUTLET CONNECTION D H W 15 mm copper pipe SAFETY DISCHARGE C H 15 mm copper pipe MAX COLD WATER CAPACITY WITHOUT ADDITIONAL EXPANSION VESSEL 85 LITRES SEAL...

Page 9: ...W 15 mm copper pipe SAFETY DISCHARGE C H 15 mm copper pipe MAX COLD WATER CAPACITY WITHOUT ADDITIONAL EXPANSION VESSEL SEALED WATER SYSTEM C H MAX PRESSURE PHS 2 5 bar MINIMUM WORKING PRESSURE 0 5 bar...

Page 10: ...alve 15 mm compression isolating valve 15 mm copper pipe 15 mm copper pipe MAX COLD WATER CAPACITY WITHOUT ADDITIONAL EXPANSION VESSEL 85 LITRES SEALED WATER SYSTEM C H MAX PRESSURE PMS 2 5 bar MINIMU...

Page 11: ...NERAL INFORMATION taken in any way as overriding statutory Both the user and the manufacturer rely heav obligations ily on the installer whose job it is to install the If in doubt on any point please...

Page 12: ...e that the meter is ade quate to deal with the rate of gas supply re quired for all appliances it serves Installa tion pipes should be fitted in accordance with BS 6891 Pipework from the meter to the...

Page 13: ...ng should be either with capillary soldered or with compression fittings Where possible pipes should have a gradi ent to ensure air is carried naturally to air release points and water flows naturally...

Page 14: ...to accommodate the increase of water volume when the system is heated It can accept up to 6 lts of expansion water If the appliance is con netted to a system with an unusually high water content calc...

Page 15: ...ry and any defective controls exchanged B Where fitting a make up vessel would be difficult re pressurisation of the system can be done See section on FILLING If the capacity of the central heating sy...

Page 16: ...to the appliance must be carried out by a competent person and be in accordance with the current I E E Regulations and local regulations which apply The Ravenheat boiler is supplied for con nection to...

Page 17: ...crews that fasten the lower grating on the casing and remove it the casing Fig 20 5 4 2 Remove the 4 screws that secure in the top 2 in the bottom the casing Fig 19 Carefully slide the casing forward...

Page 18: ...m the wall Use a 10 mm dia drill to make the 2 boil er securing holes Insert the plastic expansion plugs Cut or core drill a 105 mm dia hole for inserting the flue duct Screw in the two upper coach bo...

Page 19: ...the terminal Cut end must de burred Fig 32 Fig 30 Orifice plate concentric flue system LS 80 T 77 mm NAT GAS 76 mm LPG LS 100 T 79 mm NAT GAS 78 mm LPG INTAKE AND EXHAUST TERMINAL COMPONENTS Fig 31 KE...

Page 20: ...ach other as far as they can go If an extension must be shortened this must be done from the straight end and not from the widened or tapered end To measure the pipeline properly all compo nents must...

Page 21: ...ure the distance y between the centre of flue duct hole to the corner Detach the tem plate from wall Use a dia 10 mm drill to make the 2 holes for securing the boiler Insert the plastic expansion plug...

Page 22: ...g 37 57 11 Extension kits are available on order for flue extension of up to 3 5 metres total length Fig 31 39B For further details see sect 5 5 10 5 7 12 1 VERTICAL FLUE OPTIONS The vertical flue kit...

Page 23: ...oles Insert plastic expan sion plugs Fig 29 Screw in the two upper coach bolts leav ing them about 10 mm out from the wall to enable the boiler to be located on the wall Position the straight header o...

Page 24: ...olating cock marked CHR Connect the central heating flow pipe to 5 11 DOMESTIC HOT WATER Fig 46 5 11 1 The domestic hot water circuit does not need a safety valve but it is essential to en sure hat th...

Page 25: ...PROGRAMMABLE TIME CLOCK Instructions for use Consult User s Guide SECT ION 6 COMMISSIONING 6 1 Each boiler has been through a rigorous operational procedure at our factory and should not require any...

Page 26: ...l controls are installed e g timeclock and thermostat make sure that they call for heat Press summer winter selector switch la Fig 50 to winter Fig 46 To lower the system pressure to the required valu...

Page 27: ...Supplied By www heating spares co Tel 0161 620 6677 INSTRUMENT PANEL Fig 50...

Page 28: ...taps so that at least 10 12 litre of water flows per minute The pressure indicated on the pressure gauge is the maximum operating gas pressure Check if the minimum pressure corre sponds to 9 6 mbar G...

Page 29: ...nce Turn the appliance mode selector switch 1 Fig 50 to the summer position Slowly close the draw off tap to reduce the flow rate to above the min approx 2 8 litre min 0 61 gals min Rotate the D H W c...

Page 30: ...riction ring 13 Flue gas exhaust hood 17 Heat exchanger 19 Air pressure switch 2 4 Main burner 27 Auto air vent valve 31 Seal 37 Gasket 48 x 42 x 1 38 Connection pipe 42 Window clamp ring 44 Fan 46 58...

Page 31: ...ctional checks in operation 7 2 TO INSPECT AND CLEAN THE APPLIANCE 7 2 1 Before carrying out cleaning operation cover the electrical control panel with a piece of waterproof material to protect it fro...

Page 32: ...the flue hood upwards and then remove by tilting forward Fig 61 Replace in reverse order TO REMOVE THE HEAT EXCHANGER Fig 62 63 64 Remove front casing sect 7 3 Remove combustion chamber front cover as...

Page 33: ...LACETHE ELECTRODES Fig 66 7 10 1 Remove front casing sect 7 3 Remove combustion chamber front cover sect 7 4 Fig 61 7 10 2 Detach the wire from electrode and then unscrew the screw that secures it to...

Page 34: ...he combustion chamber front cover sect 7 3 4 7 14 2 Unscrew the union Fig 70 7 14 3 Unscrew the 4 screws securing the injector manifold to the burner Fig 71 7 14 4 Pull the manifold up and out from th...

Page 35: ...Fig 75 7 15 7 Replace in reverse order IMPORTANT When refitting the burner make sure that the pins at the rear of the combustion chamber locate into the slots made on the rear of the burner 7 16 TO R...

Page 36: ...cone tubes 7 24 5 Remove the gauge from the instrument panel by pressing its fastening springs 7 24 6 Replace in reverse order TO REMOVE REPLACE THE OVERHEAT THERMOSTAT Remove the front panel from the...

Page 37: ...heck for leaks see 7 26 2 7 26 TO REMOVE REPLACE THE DIVERTER VALVE Fig 89 7 26 1 Remove the casing and lower the instru ment panel sect 7 3 7 19 1 7 26 2 Close the on off valves for the heating cir c...

Page 38: ...le Fig 7 However if it is necessary to replace the central heating expansion vessel the boiler must be removed from the wall as follows 7 28 1 Remove the casing sect 7 3 7 28 2 Close the on off valve...

Page 39: ...nd lower the instrument panel sect 7 19 1 3 Remove control box cover sect 7 23 2 Remove control board sect 7 23 2 from panel Remove two clips securing the timer Carefully remove the four wires connect...

Page 40: ...Supplied By www heating spares co Tel 0161 620 6677 Fig 89 Fig 91 Fig 92 Fig 93 41...

Page 41: ...d By www heating spares co Tel 0161 620 6677 Section 8 FAULT FINDING CENTRAL HEATING Switch on Select winter Central Heating Stat to maximum Ensure external controls calling for heat Room Stat Tune Cl...

Page 42: ...nuing it may be necessary to see Central Heating Fault Finding Select only Summer Domestic Hot Water Open Domestic hot tap close to appliance BOILER NOT OPERATIONAL ON TIMER INTEGRAL Switch on Select...

Page 43: ...Supplied By www heating spares co Tel 0161 620 6677 SECTION 9 ELECTRICAL SYSTEM DIAGRAM Fig 94 44...

Page 44: ...n flue eccentric flue duct systems only When ordering twin flue it must be stated for LS 80 range Typical installation procedures are illustrated by drawings Supplied with the twin flue header is an 7...

Page 45: ...required Sampling point Sampling point is positioned on the outlet of the twin flue header for the use of sampling gas combustion products Condensing trap To drain the exhaust pipe only with a greate...

Page 46: ...ach one fit ted 45 elbow less 1 5 metre d pipe for each one fitted For exhaust pipe with a distance of over 6 metre a condensing trap must be fitted Exhaust suction system with two separate pipes thro...

Page 47: ...Supplied By www heating spares co Tel 0161 620 6677 SECTION 1 EXPLODED PARTS DIAGRAM 48...

Page 48: ...10005 0 0014MAN06015 0 0006lDR09005 0 0007TER05005 0 0014VET01005 0 0001COP1001 0 0001 DIA09005 0 0001CAP10005 O 5021103 0012CIR09005 0 0002SCA10005 0 0012GEN09010 0 0005PRE09005 0 0004VAS0901010 0009...

Page 49: ...0012CAV09005 0 378864 371279 371279 E02130 372862 5012125 5018015 0008VAL09010 0 0005PRE03010 0 0011C0L09005 0 5021312 372861 372865 371298 371310 0003UGE01011 O 0003UGE03005 0 5012125 5018015 0008VA...

Page 50: ...Supplied By www heating spares co Tel 0161 620 6677 Chartists Way Morley Leeds LS27 9ET Telephone 0113 252 7007 Tfax 0113 238 0229...

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