Glow-worm icon 23t User, Installation And Servicing Instructions Download Page 31

Page: 31 / 32

icon

Servicing instructions

Schematic wiring diagram

Mains switch

Pump

E/I

Summer/winter selector

PSA Loss of water pressure switch
MOD Modulating coil

Thermistor

Water valve microswitch

Ignition and flame control unit

Ignition electrodes

Flame sense electrode

Mains lamp

Overheat thermostat

Lockout reset switch

Lockout warning light

Fan

MPV Air pressure switch

Timeclock

Timeclock microswitch

Colours
abbreviations:

Black

Brown

Blue

Green

GNYE Green-Yellow

Grey

Orange

Red

Violet

White

Summary of Contents for icon 23t

Page 1: ...This is a CAT II2H3 appliance USER INSTALLATION AND SERVICING INSTRUCTIONS Wall hung combination boilers SUPPORTED BY...

Page 2: ...ry for which it is intended If you see any exception to this rule please contact your nearest Stockist Thank you in advance for your assistance Index Introduction 3 User instructions 3 Introduction 4...

Page 3: ...f the building ACCESSORIES A range of accessories are available including vertical flue components For further information contact you nearest Stockist GAS SAFETY INSTALLATION AND USE REGULATIONS In y...

Page 4: ...tem must be filled up immediately Important notice A central heating system cannot operate satisfactorily unless it is properly filled with water and unless the air initially contained in the piping s...

Page 5: ...er position Adjust the heating temperature control 3 to the desired temperature Adjust the domestic hot water control 4 to the desired hot water temperature The heating will operate according to the r...

Page 6: ...ller Service Pro vider HEATING SAFETY VALVE CAUTION A safety valve with a discharge pipe is fitted to this boiler The valve MUST NOT BE TOUCHED except by a competent person If the valve discharges at...

Page 7: ...7 icon Technical data Technical data...

Page 8: ...6 9 5 1 1 w o l f r e t a w n i M n i m l 5 2 5 2 e r u s s e r p y l p p u s x a M r a b 6 6 e r u s s e r p y l p p u s n i M r a b 4 0 4 0 e g n a r e r u t a r e p m e T C 5 6 5 3 5 6 5 3 A T A D...

Page 9: ...x a m 7 8 2 4 2 9 7 9 2 3 1 t 3 2 n o c i T U P T U O T A E H E R U S S E R P W k r h u t B r a b m n i m 7 8 4 8 6 9 2 6 1 0 1 0 2 1 4 3 3 2 1 1 2 3 5 7 3 7 2 2 1 4 4 9 0 4 4 3 3 1 6 5 3 4 4 7 3 4 1...

Page 10: ...heat exchanger 8 Flue hood 9 Air pressure switch 10 Automatic air vent 11 Fan 12 Loss of water switch 13 Heating system safety valve 3 bar 14 Hydraulic 3 way valve 15 Domestic heat exchanger 16 Water...

Page 11: ...above the boiler The above clearances are minimum clearances consideration must be given to allow adequate space for servicing The recommended servicing clearances are 50 mm either side if the boiler...

Page 12: ...ITIONING OF FLUE TERMINALS A Under a window 300 B Under an air vent 300 C Under a gutter 75 D Under a balcony 300 E From an adjacent window 300 F From an adjacent air vent 300 G From vertical drain pi...

Page 13: ...cold condition The expansion vessel on the boiler is pressurised at 1 bar corre sponding to a static head of 5m wg and allows a maximum system volume of 190 litres for an average temperature of 75o C...

Page 14: ...y danger to persons damage to property or external electrical components and wiring Tighten all pipe connection joints Gas connection The supply from the governed meter must be of adequate size to pro...

Page 15: ...rease etc Note Solvent products could cause damage to the system Boiler installation To install the boiler proceed as follows Allowing sufficient clearances for servicing repair place the template on...

Page 16: ...d pull up so that external collar M is flush against outside wall Fit collar E and clamp F to flue and assemble into elbow B making sure that both inner and outer pipes are sealed properly NOTE Maximu...

Page 17: ...o 885120 Fit flue terminal L onto roof ensuring flashing makes a watertight joint Fit collar E to vertical flue pipes and assemble between terminal L and vertical adaptor B making sure that both inner...

Page 18: ...ration ATTENTION If coaxial system would have a total length lower than 2 lin ear meters n 1 additional bend 0 5 linear meters it will be necessary to install the diaphragm supplied with the gas boile...

Page 19: ...estic hot water DO NOT INTERRUPT THE MAINS SUPPLY TO THE BOILER WITH A TIME SWITCH OR PRO GRAMMER The icon 23 t and icon 28 t are delivered with an integral mains supply lead AND an integral external...

Page 20: ...connections items A B and D and cap on automatic air vent inside sealed cham ber Fill system by opening system filling loop until a pressure of between 1 and 2 bar is shown on the boiler pressure gaug...

Page 21: ...a maximum temperature is reached Shut down boiler and vent heating system If necessary top up heating system and make sure that a pressure of 1 bar is indicated on the pressure gauge when system is CO...

Page 22: ...OT WATER FLOW ADJUSTMENT The domestic hot water flow rate is factory set However after installation it may be necessary to adjust the domestic hot water flow rate proceed as follows Fully open a domes...

Page 23: ...tor on modulation coil Keeping knob B locked adjust minimum pressure unscrew ing screw A very slowly using a 4 mm spanner Refit electrical connector and check settings Lock the adjustement device afte...

Page 24: ...24 icon Installation instructions...

Page 25: ...4 Ignition and flame sense electrodes 5 Domestic heat exchanger 6 Gas valve 7 Water valve 8 Hydraulic 3 way valve 9 N A 10 Drain valve 11 N A 12 Thermistor 13 Burner 14 Primary heat exchanger 15 Autom...

Page 26: ...26 icon Servicing instructions Servicing instructions...

Page 27: ...ON CHAMBER Unscrew and remove 6 screws securing sealed chamber cover to boiler Pull cover forward and off boiler BURNER Undo main gas supply nut from burner Pull main burner forward pull off the ignit...

Page 28: ...to rear of flue hood Supporting fan unscrew and remove two screws securing fan to front of flue hood Lower fan from top of boiler then tilt base of fan to right hand side Gently ease fan forwards and...

Page 29: ...lating valves on flow and return connections Refill vent and pressurise boiler Check for leaks TO REPLACE GAS VALVE Isolate boiler from gas supply Remove controls housing as described in To re place p...

Page 30: ...ing valves on flow and return connections refill vent and pressurise boiler Check for leaks Open cold water isolating valve Check for leaks TO REPLACE THERMISTOR Locate thermistor clipped onto flow pi...

Page 31: ...ter valve microswitch CA Ignition and flame control unit EA Ignition electrodes ER Flame sense electrode LN Mains lamp TS Overheat thermostat R Lockout reset switch LB Lockout warning light MV Fan MPV...

Page 32: ...02 2000 COD 982160005 REV 06 SUPPORTED BY...

Search results

Summary of Contents for icon 23t

Reviews:

Related manuals for icon 23t

Brands by name

Popular brands

Glow-worm icon 23t, User, Installation And Servicing Instructions

Search results

Summary of Contents for icon 23t

Reviews:

Related manuals for icon 23t

Brands by name

Popular brands