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4000116705-2

Important Information

Appliance Introduction

Appliance Safety Devices

Service and Maintenance

Operating the Appliance

Xtracom Remote Control

Technical Data

General Information

Heating System Design

Domestic Hot Water System Design

Boiler Schematic

Boiler Location, Flue and Ventilation

Safety Discharge

Fixing Jig

Piping System Installation

Boiler Installation

Horizontal Telescopic Top Flue Installation

Horizontal Top Flue Installation

11a

Electrical Connection

Commissioning

Safety Devices

Changing Gas Type

Settings

Routine Cleaning and Inspection

Fault Finding

Replacement of Parts

Wiring Diagram

Spare Parts

CONTENTS

DESCRIPTION

SECTION

PAGE No.

SERVICING

INSTRUCTIONS

INSTALLATION

INSTRUCTIONS

INSTRUCTION

FOR USE

Contents

Содержание XTRAMAX

Страница 1: ...d gas installer in accordance with the manufacturer s recommendations We strongly recommend regular servicing of your gas appliance but where the condition is not met any chargeable spare parts or com...

Страница 2: ...ation 10 18 Horizontal Telescopic Top Flue Installation 11 19 Horizontal Top Flue Installation 11a 20 Electrical Connection 12 22 Commissioning 13 23 Safety Devices 14 26 Changing Gas Type 15 27 Setti...

Страница 3: ...e INSULATION PADS CERAMIC FIBRE These can cause irritation to skin eyes and the respiratory tract If you have a history of skin complaint you may be suscepti ble to irritation High dust levels are usu...

Страница 4: ...e system will pass directly to the rear or to either side to the terminal fitted on the outside wall face Appliance Introduction The installation of this boiler must be carried out by a competent pers...

Страница 5: ...icing and Maintenance To ensure the continued efficient and safe operation of the appliance it is recommended that it is checked and serviced as necessary at regular intervals The frequency of servici...

Страница 6: ...most likely fault is that the gas supply to the boiler has not been turned on or that there is no pressure in the heating system These are indicated as follows Other faults These are indicated on the...

Страница 7: ...water 2 Press the mode button to select the summer symbol Press the mode button to select the winter symbol The flame symbol appears when the boiler is running The actual temperature of the heating s...

Страница 8: ...setting the Temperatures T1 T2 and T3 The programmes use three temperature settings which you can adjust Recommended first use settings are T1 16 T2 19 T3 21 Iftheradiatorsinyourinstallationareequippe...

Страница 9: ...p time 4 min Time to reheat 70 of storage to 60 C 5 min Expansion valve setting 6 bar Expansion vessel charge pressure 3 5 bar Maximum operating pressure 3 5 bar Maximum supply pressure 16 bar Minimum...

Страница 10: ...lteration that is not approved by Hepworth Heating Ltd could invalidate the warranty and could also infringe the current issue of the Statutory Requirements 1 3 Gas Supply The gas installation must be...

Страница 11: ...to avoid any air pockets and facilitate permanent venting of the installation Bleed fittings must be provided at every high point of the system and on all radiators The total volume of water permitted...

Страница 12: ...sure losses should be avoided A flow restrictor limiting the flow through the boiler to a maximum of 16 l min is fitted to the boiler The boiler will operate with a minimum supply pressure of 0 7 bar...

Страница 13: ...e boiler is not suitable for fitting outdoors Any electrical switch or boiler control using mains electricity must be positioned so that a person using a bath or shower cannot touch it 6 2 Clearances...

Страница 14: ...e terminal to obstructions and ventilation openings are shown in diagram 6 2 The boiler must be installed so that the terminal is exposed to the external air Warning Do not obstruct the outside termin...

Страница 15: ...ischarge pipe D1 from temperature relief valve to turndish Tundish Supplied Fixed grating Trapped gully Safety device eg temperature relief valve 500mm max 300mm min 9131 7 Safety Discharge 8 Fixing J...

Страница 16: ...uld terminate in a safe place where there is no risk to persons in the vicinity of the discharge be of metal and a Be at least one pipe size larger than the nominal outlet size ofthesafetydeviceunless...

Страница 17: ...e H Hot water supply from boiler C Reduced cold water supply MIX Thermostatically controlled outlet Warning It is strongly recommended that the cold water supply to the mixing valve is taken from the...

Страница 18: ...around the boiler Remove front panel put in a safe place to avoid damaging it Ensure the plastic plugs are removed from water and gas pipes NOTE There will be some spillage of water Remove transportat...

Страница 19: ...f the air duct pipe A Fit air flue duct pipe assembly into wall from the outside with rubber sealing collar to the outside Pull pipe assembly inwards to bring rubber sealing collar hard up against ext...

Страница 20: ...t hand applications measure wall thickness e plus inside of wall to side of boiler a minus 25 mm for the outer air duct and wall thickness e plus inside of wall to side of boiler a add 70 mm for the i...

Страница 21: ...sembly inwards to bring rubber sealing collar F hard up against external wall while carefully pushing the fixing collar seal onto the elbow ensuring that the flue duct pipe locates into the flue elbow...

Страница 22: ...link fitted between the two terminals of the connector E is left in place see diagrams 12 2 and 12 3 Alternatively a 24V room thermostat can be used but do not makeanyconnectiontothecompensatingresis...

Страница 23: ...ater and air bled from the system If these conditions are not met the system may be noisy Bleed the air in the radiators and adjust the pressure if system requires If the system requires filling too o...

Страница 24: ...ntral heating system Gases driven towards the boiler will be automatically released through the automatic air vent The gases trapped at the highest point of the system must be released by bleeding the...

Страница 25: ...tment of the heating output does not affect the hot water output 11843 setting flue length setting flue length 0 0 3m 0 0 5m 1 0 6m 1 1m 2 1m 2 2m 3 1 2m 3 3m 4 1 5m 4 4 5m 5 2m 5 6m 6 2 2m 6 7m 7 2 5...

Страница 26: ...ll be ready to operate when the fault has been cleared 14 5 Overheat safety In case of boiler overheating the overheat thermostat will turn the boiler off The thermostat located on the heat exchanger...

Страница 27: ...gures specified refer to diagram 1 1 turn clockwise to close the valve Diagram 16 1 9349 a Should it become necessary to change the gas type a modification kit will be required This modification must...

Страница 28: ...oiler Unhook grille from rear of boiler and remove Remove three screws from front of each side panel Lift each panel up and then forward to remove 17 7 Combustion chamber cover Unscrew the two screws...

Страница 29: ...R LOCATION SLOT FLAME SENSE LEAD IGNITION LEADS 11756 17 9 Heat exchanger refer to diagram 17 4 Disconnect electrical connections from fan Unscrew and remove two fan retaining screws from the right ha...

Страница 30: ...y and turn on gas Light burner by opening a hot water tap Check that fan operates when burner lights and stops when it goes out 17 15 Cold water inlet filter Drain down domestic hot water circuit of b...

Страница 31: ...ibed previously and measure the voltages according to table 2 Table 2 Voltage Measured value Measuring point 230 Volt 230 V AC Between terminals H8 1 and H8 2 24 Volt maximum 33V DC Between terminals...

Страница 32: ...CUIT CHECK RESISTANCE OF THE THERMISTOR 12500 ohms AT 20 C 1750 ohms AT 70 C UNCLIP THE THERMISTOR FROM THE PIPE IF THE BOILER RE LIGHTS WHEN THE THERMISTOR IS OPEN CIRCUIT REPLACE THE THERMISTOR 05 0...

Страница 33: ...D AT 3A PLUG FUSE 125mAT H3 H6 H1 H4 H5 H8 H2 J5 J9 J8 J4 SW3 S2 S1 J19 J16 J6 J2 J3 ON OFF SWITCH AIR PRESSURE SWITCH FAN THREE WAY VALVE SENSE ELECTRODE IGNITION ELECTRODES g y g y g y g y g y br br...

Страница 34: ...or Fit leads to replacement thermistor and fit thermistor to pipe The polarity is not important 20 2 Central heating thermistor Before starting refer to the front of Section 20 Important information R...

Страница 35: ...unting plate attached by pulling forwards out of the boiler Remove fan from mounting plate Fit replacement fan Note When re fitting make sure that the two lugs on the fan mounting plate engage in the...

Страница 36: ...3 Lower the control panel refer to Section 17 5 For ease of access if required remove the left hand side panel refer to Section 17 6 Drain down central heating water circuit of the boiler only see di...

Страница 37: ...valve bypass housing to storage vessel Remove central heating flow pipe from 3 way valve bypass housing to fixing jig From underneath boiler undo two screws securing 3 way valve bypass housing and li...

Страница 38: ...control valve assembly mounting bracket Undo main gas supply nut from main burner see diagram 17 3 Note The washer must be kept for use on reassembly Undo main gas union nut between gas control valve...

Страница 39: ...Apply a small quantity of silicon grease to the safety valve O ring prior to fitting 20 19 Main heat exchanger Before starting refer to the front of Section 20 Important information Remove the front...

Страница 40: ...lugs remove the front insulation panel free from retaining lugs on combustion chamber cover Rear panel insulation Pull rear insulation panel free from retaining lug at rear of combustion chamber by ti...

Страница 41: ...20 Important information Remove the front panel refer to Section 17 3 Remove sealed chamber cover refer to Section 17 4 Lower the control panel refer to Section 17 5 Remove combustion chamber cover r...

Страница 42: ...er to Section 17 6 Drain down domestic hot water circuit of boiler only see diagram 20 1 Undo pipe coupling on domestic hot water expansion vessel Unscrew and remove domestic hot water expansion vesse...

Страница 43: ...bar Disconnecttheinlineelectricalplugconnectiontothedomestic hot water storage vessel thermistor The thermistor is located on the right hand side of the domestic hot water storage vessel Removetopand...

Страница 44: ...7250 E37302 4 Fan 57238 E37371 5 Air pressure switch 57237 E37237 6 Domestic water flow sensor 57202 E37368 7 Printed circuit board 57248 E37374 8 Pump 57207 E37411 9 3 way valve head 57206 E37413 10...

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