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Glow-worm COMPACT 75e, Instructions For Use Installation And Servicing, Page: 42 / 44

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Glow-worm COMPACT 75e Instructions For Use Installation And Servicing Download Page 42

42

221895A

CONTROL BOARD

ROOM STAT

CLOCK TIMER

MAINS 
SWITCH

THERMISTOR
(CENTRAL
HEATING)

N/O

N/C

C

WATER

PRESSURE

SWITCH

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)

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 

FUSED AT 3A

KEY

NOTE

w

w

w

bk

bk

b

y

g

br

p

p

or

or

w

g

g

w

bk

bk

b

r

g/y

g/y

br

X5

X4

X3

X1

X2

X9

X11

y

p

r

y

o

b bk

b

w

bk

bk

bk

br

g/y

br

r

r

PLUG

PLUG

PLUG

1

NOTE 1

NOTE 2

2

r

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.)

14 Replacement of Parts

9378

Diagram 14.29

Summary of Contents for COMPACT 75e

Page 1: ...liances are manufactured 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...

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: ...o its use Alternatively a fused 3A 3 pin plug and shuttered unswitched socket may be used Thecoloursofthreecoreflexiblecableare blue neutral brown live green and yellow earth As the markings on your p...

Page 4: ...l not operate Soft Override button indicated by the symbol this function will override the current central heating programme for the next available ON time programmes are indicated by the symbol 3 Set...

Page 5: ...is opened while the boiler is on for heating priority will be given to hot water Toturntheheatingoffforshortperiods setbutton J tosummer Off light L will illuminate To turn on again set button J to wi...

Page 6: ...ief Safety 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 th...

Page 7: ...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 69...

Page 8: ...General Data Thermostatic radiator valves may be installed however they must not be fitted in a room where the room thermostat is located Note All systems must have at least one radiator not fitted w...

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: ...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 follows Standard Top Outlet...

Page 11: ...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 depend...

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: ...ion kits may be joined together STD EXTD X plus 254mm RH flue length X plus 10mm LH flue length EASYFIT X plus 282mm RH flue length X plus 38mm LH flue length must include 50mm min side clearance REAR...

Page 15: ...site the expanded 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 installe...

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: ...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 safety valve using the nut and sealing washer s...

Page 18: ...PE 8 Mounting the boiler SAFETY VALVE DISCHARGE SEAL PRESSURE GAUGE CONNECTION DISCHARGE PIPE 7405 Diagram 8 7 Fit the air duct into the flue spigot by pulling the air duct into the flue spigot locati...

Page 19: ...m the flue collector secured 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 collecto...

Page 20: ...equired to provide a minimum of reinforced insulation at 250Vrms between the parts of those devices operating at mains hazardous voltage and the user accessible parts af those devices Note For further...

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: ...should be required Check the burner pressure is within 0 2mbar of 14 7mbar If this is incorrect the burner pressure may be adjusted to the correct setting by turning the hot water gas pressure adjuste...

Page 23: ...from the electrical supply and drain the system rapidly whilst still hot Remove the inner case front Fill and vent the system as described in Section 10 2 Filling the Central Heating Circuit Add inhi...

Page 24: ...e Gas Safety Installation and Use Regulations Section 35 which imposes a duty of care on all persons who let out any property containing a gas appliance It is the Law that any servicing is carried out...

Page 25: ...to release then remove see diagram 10 5 11 5 Inner Case Front Remove the inner case front secured by two clamps at the bottom lift up and unhook at the top see diagram 8 1 11 6 System Pressures and Dr...

Page 26: ...he burner thoroughly making sure that all burner ports are clear and unobstructed Diagram 12 1 9408 BURNER SECURING SCREW 3 LEADS 3 SENSING ELECTRODE SILICONE SLEEVE 3 EARTH ELECTRODE IGNITION ELECTRO...

Page 27: ...s 0 7bar minimum and that the automatic air vent works Refer to Installation Instructions Section 10 2 3 That the gas supply is available at the boiler and purged of air 4 That the boiler is set for t...

Page 28: ...TIMER 7467 Diagram 13 2 MAINS FUNCTIONAL FLOW 7670 grey orange PCB purple white black X5 X5 X4 X4 X4 X4 X4 X3 X3 X5 DHW FLOW SWITCH purple purple orange orange X5 CH THERMISTOR DHW THERMISTOR CONTROL...

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: ...ectrode lead and silicone sleeve remove the securing screw and electrode see diagram 12 1 14 5 Ignition Earth and Sensing Leads Before starting refer to Section 11 Disconnect the silicone sleeve and l...

Page 33: ...starting refer to Section 11 Remove the two screws securing the controls cover door and controls fascia see diagram 9 1 Hinge the assembly open Disconnect multi pin connector Support the gas control...

Page 34: ...move the plastic cover Remove the electrical connectors Refer to wiring diagram 14 29 when fitting 14 12 Safety Valve Before starting refer to Section 11 Remove the two screws securing the controls co...

Page 35: ...bly forward Disconnect the electrical connections unclip to remove themistor see diagram 14 4 14 17 Flow Regulator Filter Before starting refer to Section 11 Drain domestic hot water Remove outer case...

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: ...ve multi pin connector Remove securing pins 4 5 and 6 see diagram 14 18 ELECTRICAL PLUG 7019a PRESSURE DIFFERENTIAL MICRO SWITCH Diagram 14 18 HYDRO BLOCK ASSEMBLY DIVERTER SWITCH 14 Replacement of Pa...

Page 38: ...bracket Pull the boiler from the isolating valves Unhook the boiler at the top easing the boiler from the flue outlet and lift off Carefully lay the boiler down on its side for access to the expansio...

Page 39: ...et pipes Remove the combustion chamber main panel securing screws Remove the heat exchanger combustion chamber assembly Remove heat exchanger front retaining clips Remove the heat exchanger from its r...

Page 40: ...see diagram 14 25 Slide out both side insulation pieces Pull the lower rear insulation forwards then slide the upper rear insulation down from behind the heat exchanger 14 28 Viewing Window Before sta...

Page 41: ...secured with two screws When replacing the tubes to the air pressure switch make sure that the red tube from the fan connects to the upper connection of the switch The polarity of the electrical conn...

Page 42: ...HITE 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 FUSED AT 3A KEY NOTE w w w bk bk b y g g b...

Page 43: ...ated E27211 14 202226 Fuse not illustrated 278136 15 801182 Gas control valve E27124 16 227070 Air pressure switch assy 17 801186 Automatic air vent assembly E27166 18 801208 Safety valve assembly E27...

Page 44: ...221895A 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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