Potterton Performa 12 SL HE User Manual Download Page 66

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Summary of Contents for Performa 12 SL HE

Page 1: ...nstructions include the Benchmark Commissioning Checklist and should be left with the user for safe keeping Performa SL HE Range Condensing Central Heating Boiler You can rely on S u p p l i e d b y t h e m a n u a l s l i b r a r y c o u k t h e m a n u a l s l i b r a r y c o u k t h e m a n u a l s l i b r a r y c o u k ...

Page 2: ...ppliance to the relevant Local Authority Building Control Department From 1 April 2005 this can be achieved via a Competent Persons Self Certification Scheme as an option to notifying the Local Authority directly Similar arrangements will follow for Scotland and will apply in Northern Ireland from 1 January 2006 CORGI operate a Self Certification Scheme for gas heating appliances These arrangement...

Page 3: ...fication number issued by CORGI is written onto the Benchmark Checklist Scheme Members only Call CORGI on 0870 88 88 777 or log onto www corgi notify com within 10 days If you notify via CORGI Scheme CORGI will then notify the relevant Local Authority Building Control Scheme on member s behalf Complete the Benchmark Checklist Install and Commission this appliance to manufacturer s instructions Com...

Page 4: ...ith fully pumped open vented and sealed systems with an indirect coil type high efficiency cylinder The gas type supply size and pressure must be checked for suitability before connection Failure to install the condensate discharge pipework correctly could affect the reliable operation of the boiler For the boiler to operate correctly all air must be vented from the system prior to commissioning a...

Page 5: ...s and rope seals are manufactured from man made mineral fibre b Prolonged or excessive exposure to this material may result in some irritation to the eyes skin or respiratory tract c It is advisable to wear gloves when handling these items d Irritant dust will only be released from the items if they are broken up or subjected to severe abrasion In these instances a suitable dust mask and goggles s...

Page 6: ...s Supply Pressure mbar 20 20 20 20 20 20 Injector Size mm 2 8 3 1 3 5 3 9 3 9 4 1 Water Content litres 2 3 9 12 15 2 7 18 21 24 Boiler Weight kg 39 0 9 12 15 42 8 18 21 24 Lift Installed Dry Nox Class 2 2 2 2 2 2 Maximum Working Head 30 5m 100 ft Minimum Working Head 150mm 6 in Flow Temperature Range 63 C 82 C Gas Supply Connection 15 mm Tail Flow Return Connections 22 mm Copper Condensate System ...

Page 7: ... clearance Fan and Flue Hood Air Pressure Switch Secondary Heat Exchanger Condensate Trap 75 mm Gas Valve Primary Heat Exchanger PCB Enclosure Burner Electrodes Flow Connection Return Connection Spark Igniter Flow Sensor Overheat Sensor Casting Sensor 610 mm servicing clearance 260 mm 15 mm clearance Condensate Connection Wiring Centre Data Label O Ring and Clip Joints Gas Connection Fig 1 ...

Page 8: ...orthern Ireland The WATER FITTINGS REGULATIONS OR WATER BYELAWS in Scotland The I E E WIRING REGULATIONS Where no specific instructions are given reference should be made to the relevant BRITISH STANDARD CODES OF PRACTICE Reference should also be made to BRITISH GAS GUIDANCE NOTES FOR THE INSTALLATION OF DOMESTIC GAS CONDENSING BOILERS Definition of competence A person who works for a CORGI regist...

Page 9: ...ombustible material A metal sleeve should be installed to surround the flue duct to provide a 25 mm annular space Further guidance is given in BS5440 Pt 1 Timber Frame If the boiler is to be fitted into a building of timber frame construction then reference must be made to the current edition of Institution of Gas Engineers Publication IGE UP 7 Gas Installation in Timber Framed Housing Zone 2 Zone...

Page 10: ... pressure may force water out of the boiler trap and could affect the operation of the boiler 5 Any condensate pipework external to the building or in an unheated part of it e g garage should not exceed 3 metres in length and when in an exposed position waterproof insulation is recommended It is also recommended that the pipe diameter is increased to 32 mm If the boiler is fitted in an unheated lo...

Page 11: ...uitable for an installed length from 160 mm up to 700 mm 1 m flue extensions are available Maximum straight flue length 3 55 m 3 extensions equivalent resistance 3 55 m It is recommended that the flue is supported at least once per metre All lengths quoted exclude the boiler elbow Example layouts are shown on the Page 13 Bends A 93 bend is equivalent to a 1m length of flue A 135 bend is equivalent...

Page 12: ...rt roof 25 G From a vertical drain pipe or soil pipe 25 H From an internal or external corner 25 I Above ground roof or balcony level 300 J From a surface or boundary line facing a terminal 600 K From a terminal facing a terminal Horizontal flue 1200 From a terminal facing a terminal Vertical flue 600 L From an opening in carport e g door window into the dwelling 1200 M Vertically from a terminal ...

Page 13: ...0 25 metres 91 5 bend 0 50 metres The elbow supplied with the standard horizontal flue is not included in any equivalent length calculations NOTE Flue length is measured from point X to Y as shown Horizontal Flues Y X Plume Displacement Kit 60 100 Ø 1M Extensions 45 93 elbows are also available see Plume Displacement Section 3 9 NOTE Horizontal flue pipes should always be installed with at least a...

Page 14: ...to the joint with the flue terminal point Y One 91 5 bend or two 135 bends can be included without reduction of the flue length If further elbows are required the flue length must be reduced by the following amounts 1 metre for each 91 5 bend 0 5 metre for each 135 bend 3 8 3 Twin Vertical Flue Systems 1 Maximum permissible equivalent flue lengths are Vertical Concentric 1 9m Vertical Twin Pipe 6m...

Page 15: ...078 5111070 T Vertical flue boiler adaptor 5111065 P Wall Liner 5111067 S Flue Terminal Deflector 5111068 FLUE GROUP N Twin Flue System 80mm diameter E Flue extension pair 1000mm 5111087 F Flue Bend pair 90 5111072 G Flue Bend 2 pair 135 5111086 O Vertical flue boiler adaptor kit 5111071 H Vertical flue adaptor 5111084 W Pipe support pair 80mm 5111081 FLUE GROUP A N Vertical Flue Kits K Vertical f...

Page 16: ...flue elbow from top of the boiler and replace with the twin vertical flue duct adaptor ensuring the existing gasket is still in place 2 Attach the rubber spacer to the base of the adaptor 3 Fit the adaptor to the top of the boiler and secure it to the four hole fixing plate using the long screws supplied 4 Continue to fit the twin flue system Vertical Flue Boiler Adaptor Gasket Gasket Original sea...

Page 17: ... A mastic seal may be necessary From inside the roof adjust the flue to a vertical position and secure to the roof structure with the clamp supplied 3 8 8 Flue Dimensions The standard horizontal flue kit allows for flue lengths between 100mm and 685mm from elbow to terminal Fig 13 The maximum permissible equivalent flue length is 3 55 metres NOTE Each additional 45 of flue bend will account for an...

Page 18: ...s the length of either or both the 60 100 concentric and 60Ø exhaust 5 Standard concentric flue extension kits may be added between the boiler elbow and the terminal assembly 6 The minimum length of the concentric flue is 100mm when measured from the edge of the flue elbow IMPORTANT The maximum equivalent length of concentric flue is 3 55 metres Performa 9 12 15 18 SL 3 0 metres Performa 21 24 SL ...

Page 19: ...etres was required and the 60Ø exhaust needed to be 16 metres the graph shows that this combination would NOT be permissible as the intersection point would be above the solid diagonal line Example 2 Flue Lengths OK Where both lengths have been determined they can be applied to the graph to check that the installation is permissible For example if it was known that 1 metre of concentric flue and 6...

Page 20: ...concentric assembly and any extensions fall back to the boiler at an angle of at least 1 5 and that the external air inlet is to the bottom 8 Use suitable brackets to support the concentric assembly and any extensions and make good inside and outside 9 The 60Ø exhaust can now be fitted Slide the adaptor over the plain end of the 60Ø exhaust Fig 22 and engage the exhaust in the terminal Slide the a...

Page 21: ...ion at 30mm as shown in two positions directly opposite each other Fig 27 20 Using a suitable bit e g 2mm drill through the extension and outlet Secure using two of the screws supplied 21 The remaining screw must be used to secure the adaptor to the concentric terminal 22 When the plume outlet is positioned under a balcony or other projection Fig 28 it must protrude at least 200mm it is not necess...

Page 22: ...system pipework to prevent air locks during filling commissioning and normal operation To ensure correct circulation it is essential to vent all air from the system prior to commissioning the boiler System Drain Off Points Drain off points should be fitted in the pipework close to the boiler and in the low points of the system Plastic Pipework If plastic pipe is used for the central heating circui...

Page 23: ...o air vent 150 mm Max Boiler drain off point inside casing Pump with isolating valves Table 2 3 10 5 Boiler Protection A frost thermostat is fitted within the boiler controls which operates even if the temperature control knob is at the position The boiler will operate as necessary to maintain the boiler temperature above freezing The boiler is fitted with a timed pump overrun that will operate fo...

Page 24: ...xpansion vessel it is first necessary to calculate the volume of water in the system in litres The following volumes may be used as a conservative guide to calculating the system volume Boiler Heat Exchanger 2 7 litres Small Bore Pipework 1 litre per kW of system output Micro Bore Pipework 7 litres Steel Panel Radiators 8 litres per kW of system output Low Water Capacity Radiators 2 litres per kW ...

Page 25: ...y branches Specification of all components 110 C and 3 bar 2m Automatic by pass or existing by pass balancing valve Optional 3 port valve Auto air vent Pressure gauge visible from filling point Safety valve Expansion vessel Alternative existing by pass arrangement using the bathroom radiator fitted with two lockshield valves Pump with isolating valves Manual Filling and Make Up Point Sealed system...

Page 26: ...ll and plug 7 mm Secure using woodscrew supplied or optional Anti theft kit WALL MOUNTING BRACKET Drill and plug 7 mm Secure using woodscrews supplied 50mm per metre 2 5 Minimum Fall Boiler Mounting Bracket Boiler Mounting Bracket Woodscrews Boiler Securing Point Woodscrew or Anti theft kit Lifting points in base of packing Fig 33 4 Installation 4 1 Unpack Prepare the Wall Boiler These instruction...

Page 27: ...is pushed beyond the cut line before cutting Cut outer tube and then cut the inner tube flush with the outer Deburr both tube ends 3 Slide the wall seal along the flue and into position behind the terminal 4 To ease assembly of the flue system apply the silicone grease provided to the inner seal of the flue elbow Pass the flue through the wall and push firmly into the flue elbow The flue is correc...

Page 28: ...the optional integral programmer Part No 5111963 do so as described in the kit 4 Carry out preliminary electrical system checks i e Earth Continuity Short Circuit Polarity and Resistance to Earth For safety leave the electrical supply switched off and isolated until boiler installation is complete See Page 31 for typical system wiring Optional Integral Programmer Schematic wiring with boiler inter...

Page 29: ...ust be used to allow future disconnection We recommend using two spanners when making the connections Heat from a blowlamp could damage the case seals 4 6 Connect the Condensate System 1 The condensate connection is a 21 5 mm PP pipe To allow access for servicing we recommend the first connection to the system is a push fit type 2 Prime the condensate system to seal the trap Method 1 Pour 1 2 litr...

Page 30: ...tion Electrode Fan Gas Valve Flow Thermistor Casting Thermistor Air Pressure Switch Earth to Burner L N E SwL L N E Mains Pump g y g y g y g y g y g y b br y r b w p p br b bk bk bk r bk y y b b or or b blue bk black br brown g y green yellow or orange p purple y yellow r red w white Boiler Wiring Fig 39 ...

Page 31: ...ed through the wiring centre but must be wired direct to Pump L N Earth on boiler terminal block b blue br brown g y green yellow Boiler PCB NC C N HW on E HW off L CH on Pump Mains T h i s A p p l i a n c e m u s t b e E a r t h e d N N L E E SwL L 7 8 9 4 10 5 E N L 1 7 2 8 3 9 4 10 5 6 6 11 11 12 12 Optional external programmer Fused 3A Mains Supply Frost stat Not used Typical wiring centre 12 ...

Page 32: ...re and gas rate are correct See data label or refer to Page 6 If adjustment of the burner pressure is required follow Section 9 4 8 Check that the burner flames are blue and stable 9 Turn the temperature control knob to position and check that the burner shuts down 10 Remove the pressure gauge re fit the screws and check for gas soundness 11 Re fit the controls cover assembly and secure with the s...

Page 33: ...r and its associated controls Advise the user of the precautions necessary to prevent damage to the system and to the building in the event of the system remaining inoperative during frost conditions Advise the user that this boiler has frost protection pump overrun and pump anti seize features See 3 9 4 Advise the User that for continued efficient and safe operation of the boiler it is important ...

Page 34: ...verheat Lockout Run Check casting thermistor 80C Casting temp exceeded 4 times APS On Flame On Air Proving Lockout APS Off 4 times in 15 mins Circulation Lockout Indicate APS fault Safety shutdown 5 mins Overheat stat Off Check thermistors give valid readings Switched live On On Off switch On Overheat Lockout Check flow thermistor casting thermistor Flow temperature setpoint Post purge 5 secs Flow...

Page 35: ...LOCKOUT Manual Lockout Burner Mains Water Circulation LOCKOUT Manual Lockout Burner Mains Air Proving LOCKOUT Manual Lockout Burner Mains PCB Fault Replace PCB Automatic Lockout Burner Mains False Flame Fault Automatic Lockout Burner Mains APS Stuck Fault Automatic Lockout Burner Mains Flow Thermistor Fault Automatic Lockout Burner Mains Casting Thermistor Fault Automatic off flashing on Key Locko...

Page 36: ...r Check systems controls and system wiring Is terminal block fuse OK Check for shorts on pump fan and gas valve Replace if shorted and replace fuse No No This boiler requires both a permanent live and a switched live Both need to be a minimum of 190V to function Yes Check wiring from terminal block to PCB No Replace PCB Yes Is there 230V at 6 way plug to PCB Mains L and N off off off Fig 44 ...

Page 37: ... valve Yes Replace PCB Lead from PCB to gas valve faulty Yes Does flame establish and then extinguish Is flame detection electrode damaged No Is wiring to the detection electrode OK Yes Yes Replace electrode No Set gap to correct position over falme strip No Rectify wiring No Is there a spark Is spark electrode damaged Is the electrode gap between 3 and 4 mm No Is wiring from spark generator to el...

Page 38: ...unstable flame will cause intermittent problems Wait until the temperature at the flow pipe is 60C Check as the Water Circulation Lockout fault Unplug the 8 way connector from PCB Is there continuity between the 2 black wires Replace the overheat thermostat Remove connectors from overheat thermostat Is there continuity across the terminals Wiring faulty between the PCB and the overheat thermostat ...

Page 39: ...ed continuously during burner fire If the casting thermistor exceeds 80C the fault occurs A lockout is activated if this happens 4 times Water Circulation Lockout Refer to the boiler wiring diagram Yes No Fill system with water and bleed out all air Is the system full of water Yes No Is the pump running Yes No Reset lockout Is there 230V at the terminal block Pump L and N Pump or pump wiring fault...

Page 40: ...run Replace PCB Yes Replace fan Yes Unplug the APS leads Is there continuity across the the APS APS stuck in the On position Replace Short circuit on the wiring rectify No Yes Rectify fault Switch off Unplug the 12 way connector and both APS leads Is there continuity between the 2 orange wires Open circuit on the APS wiring rectify Yes Check the tubes from venturi to the APS Check for blockages in...

Page 41: ...nd within 25 of each other Remove connectors from the thermistors Measure resistance of thermistors Do resistances vary from ones previously measured Wiring from PCB to thermistor faulty Replace Faulty Thermistor This can be identified by removing both thermistors and holding the brass probe between your fingers The resistance should be approximately 8kΩ There are two types of fault which can occu...

Page 42: ... necessary Check the condition of the sensing tubes at the Fan and Air Pressure Switch c Burner remove if required see 9 10 Brush the burner top and check that the flame ports are clear Any blockage may be removed with a fine wire brush Turn the burner upside down and tap gently to remove any debris Protect the electrodes d Electrodes remove if required see 9 10 If the electrodes require cleaning ...

Page 43: ...anger Condensate Trap Gas Valve Primary Heat Exchanger PCB Enclosure Burner Electrodes Flow Connection Return Connection Spark Igniter Flow Sensor Overheat Sensor Casting Sensor Wiring Centre Data Label Condensate Connection O Ring and Clip Joints Gas Connection Flue Sample Point Fig 50 ...

Page 44: ...long hexagonal head screws from the side of the valve Note Loosen the condensate trap securing screws to improve access to the gas valve 4 Using the service spanner supplied with the new valve remove the front screw and loosen the two rear screws securing the gas valve to the manifold 5 Slide the valve backwards and carefully remove from the boiler 6 Re assemble in reverse order using a new O ring...

Page 45: ...it back to clear screws and lift away from the boiler 4 Disconnect the electrical plug Disconnect ignition lead if required 4 Re assemble in reverse order 9 7 Flow Casting Sensors 1 Perform General Access See 9 2 2 Disconnect the electrical plug from the sensor and unscrew the sensor from the pocket 3 Re assemble in reverse order Use a heat sink compound on the sensor shaft insert and tighten to f...

Page 46: ...the fan to the flue hood and the screw securing the venturi to the fan 8 On re assembly Remove all traces of gasket from the flue hood then attach new gasket Fit the fan to the flue hood and secure using four screws previously removed Fit the venturi assembly to the replacement fan Ensure that the flue hood locates under the clips at the rear of the chassis The front of the flue hood will rise sli...

Page 47: ...eplacement burner before re fitting 6 Re assemble in reverse order Check that the gap between the electrode tip and the burner face is 3 4 mm adjustment can be made by careful use of pliers 9 11 Injector 1 Remove the Burner See 9 10 Use a 13 mm A F or 1 2 A F socket spanner to remove the injector 2 Unscrew the injector 3 Re assemble in reverse order Use a new sealing washer on the injector and tes...

Page 48: ...r See 9 10 4 Remove the two screws securing the side and rear insulation assembly to the front of the chassis 5 Pull the assembly forwards and away from the boiler Replace insulation pieces as required replace any securing clip if damaged 6 Re assemble in reverse order ensure the insulation assembly has located correctly over the tabs at the rear of the casing below the casting and is NOT hanging ...

Page 49: ...rubber tube to the base of the sump 4 Loosen the left hand and remove the right hand screw securing the trap to the boiler 5 Slide the trap to the right to release from the left hand screw then pull the unit complete with tube down and away from the boiler 6 Re assemble in reverse order using a new case seal Pour half a litre of water into the trap to prime it before re fitting Ensure the tube and...

Page 50: ... above the boiler Remove the clip securing the return pipe from the secondary to the primary heat exchanger 9 Release the flow and return unions at the heat exchanger and lift the pipes clear 10 Remove the screw from the top right hand side and bolt and nut from the left hand side mounting brackets 11 Support the heat exchanger spring out the left hand mounting bracket to clear the stud and withdr...

Page 51: ...ove from boiler 9 Support the heat exchanger then remove the screw and front supporting bracket 10 Manoeuvre the heat exchanger out to disconnect the gaitor and flue duct from the hood pull down to release the pipe O ring connections and lift away from the boiler 11 Check and replace seals washers O rings etc as necessary Lubricate O rings prior to fitting 12 Re assemble as follows Align the flow ...

Page 52: ... Baxi Heating UK Ltd 2008 52 10 Short Spares Fig 64 308 322 305 313 207 331 200 9 to 18 206 18 to 24 206 9 to 15 216 9 to 15 216 18 to 24 200 21 to 24 217 306 332 329 330 318 202 219 121 120 209 ...

Page 53: ...114 856 Burner sub assembly 18 to 24 SL HE 1 238246 217 E78 614 Electrode 2 407776 219 Condensate trap assembly 1 5111451 305 PCB assembly 1 5110550 306 364 866 Temperature control knob 1 230981 308 Igniter assembly 1 5111922 313 Air pressure switch 9 SL HE 1 5112195 Air pressure switch 12 SL HE 1 5112196 Air pressure switch 15 SL HE 1 5110350 Air pressure switch 18 SL HE 1 5112197 Air pressure sw...

Page 54: ...E OF SCALE REDUCER HAS BEEN FITTED FOR THE DOMESTIC HOT WATER MODE MEASURE RECORD GAS RATE ft3 hr MAXIMUM BURNER OPERATING PRESSURE IF APPLICABLE mbar COLD WATER INLET TEMPERATURE C HOT WATER OUTLET TEMPERATURE C WATER FLOW RATE lts min FOR CONDENSING BOILERS ONLY CONFIRM THE FOLLOWING THE CONDENSATE DRAIN HAS BEEN INSTALLED IN ACCORDANCE WITH THE MANUFACTURER S INSTRUCTIONS YES FOR ALL INSTALLATI...

Page 55: ...INEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 8 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 9 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 10 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE INTERVAL RECORD It is recommended that yo...

Page 56: ... 871 1560 Technical Enquiries 0844 871 1555 Website www potterton co uk e oe company All descriptions and illustrations provided in this leaflet have been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in this leaflet All goods are sold subject to our standard Conditions of Sale which are avail...

Page 57: ...8 User Guide and Important Warranty Information Please keep these instructions in a safe place If you move house please hand them over to the next occupier Performa SL HE Range Condensing Central Heating Boiler You can rely on ...

Page 58: ... 1988 Applications for the copyright owner s permission to reproduce or make other use of any part of this publication should be made giving details of the proposed use to the following address The Company Secretary Baxi Heating UK Ltd The Wyvern Business Park Stanier Way Derby DE21 6BF Full acknowledgement of author and source must be given WARNING Any person who does any unauthorised act in rela...

Page 59: ... Boiler Turn the Boiler Temperature Control Knob clockwise to increase or anticlockwise to decrease the temperature Boiler Temperature Control Turn the Boiler Temperature Control Knob clockwise to increase or anticlockwise to decrease the temperature Resetting the Boiler If the Red Lockout Light is ON or FLASHING turn the temperature control knob to the off position and when the lockout light goes...

Page 60: ... Light Green Check electrical supply to boiler is switched on NO YES Is the Green Burner ON Light lit Burner ON Light Green Boiler operating satisfactorily NO YES YES YES Is the Red Lockout Light illuminated or flashing YES Turn the Temperature Control Knob to the off position and when the red light goes off Turn control knob back to required setting Lockout Red Temperature Control Knob If the lig...

Page 61: ...ples of external timer Ensure timer is set for Central Heating ON see any instructions supplied with timer NO YES YES NO 15 10 5 20 2 5 15 10 5 20 2 5 Turn Room Thermostat to maximum setting typical example shown If you don t know what you need to do to get the boiler to light or need help with the system and controls contact your installer as soon as possible CH ON CH OFF ...

Page 62: ...our boiler 6 Your boiler should have the following minimum clearances for Safety and Maintenance Figs 1 2 Top 125mm Bottom 130mm Left side 5mm Right Side 5mm Front 15mm In Operation 610mm For Servicing 7 If your boiler is installed in a compartment do not use it for storage purposes Do not obstruct any purpose provided ventilation openings 8 Flammable materials must not be stored in close proximit...

Page 63: ... the boiler will fire until a temperature of 15 C is reached 2 The boiler incorporates a built in pump protection feature which continually monitors the time since the pump last operated The pump will run for around 2 minutes if it has not run in the last 24 hours This may occur during the night when your heating controls are set to off 3 The boiler is fitted with a safety thermostat to protect ag...

Page 64: ...by telephoning 0870 4012300 or writing to 1 Elmwood Chineham Business Park Crockford Lane Basingstoke RG24 8WG or check online at www corgi gas safety com The boiler meets the requirements of Statutory Instrument The Boiler Efficiency Regulations 1993 No 3083 and is deemed to meet the requirements of Directive 92 42 EEC on the energy efficiency requirements for new hot water boilers fired with liq...

Page 65: ...6 0 Notes 9 Baxi Heating UK Ltd 2008 ...

Page 66: ...6 0 Notes 10 Baxi Heating UK Ltd 2008 ...

Page 67: ...xists on the boiler it must not be used until the fault has been corrected by a competent person Warning In an Emergency If a water or gas leak occurs or is suspected the boiler can be isolated at the inlet valves as follows 1 Using a suitable open ended spanner turn the square nut on the gas tap through 90 1 4 turn in a clockwise direction to isolate the gas supply at the boiler 2 The isolating v...

Page 68: ...isit or for any general advice that you may need Our contact centre is open Monday to Friday 8am 6pm weekends and Bank Holidays 8 30am 2pm excluding Christmas Day and New Years Day When calling heateam it would be helpful if you could have the following information to hand 1 boiler serial number see opposite 2 boiler make and model number 3 Your installer name and address details 4 Proof of purcha...

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