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HAMWORTHY HEATING LTD

Page

PUREWELL VariHeat he

500001155/F

CONTENTS

PAGE

1.0 INTRODUCTION

.................................................................................................................................

2.0

SUPPLY AND DELIVERY

..................................................................................................................

3.0

SIZE AND SPACE REQUIREMENTS

................................................................................................

4.0

SITE LOCATION AND PREPARATION

............................................................................................

4.1

Site

Location

4.2

Gas

Supply

4.3

Flues

4.4

Water

Supply

4.5

Electrical

Supply

5.0 BOILER

ASSEMBLY

........................................................................................................................

5.1

Flue

Pipe

5.2

Water

Connections

5.3

Electrical

Connections

6.0 PRE-COMMISSIONING

....................................................................................................................

6.1

Gas

Supply

6.2

Ventilation

6.3

Pipework, Valves and Pump

6.4

Flue

6.5

Electrical

7.0

CHECKS PRIOR TO LIGHTING

......................................................................................................

7.1

Boiler Gas System Leak Check

7.2

Checks Prior to Lighting the Boiler

7.3

Initial

Lighting

7.4

Combustion

Checks

7.5

User

Instructions

8.0 CONTROLS

OPERATION

................................................................................................................

8.1

Starting

8.2

Standby

8.3

Pump

Kick

8.4

Lockout

8.5

Heat

Demand

8.6

Data

Logging

8.7

Display

Screen ..................................................................................................................................

9.0 FAULT

FINDING

...............................................................................................................................

10.0 SERVICING

.......................................................................................................................................

11.0 REPLACEMENT

FAILED COMPONENTS

................................................................................

11.1

Igniter and Flame Probe Assembly

11.2

Temperature

Limiter

11.3

Main Gas Valve

11.4

Combustion

Fan

12.0 RECOMMENDED

SPARES

..............................................................................................................

Содержание PUREWELL VariHeat he

Страница 1: ...IMPORTANT NOTE THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING COMMISSIONING OPERATING OR SERVICING EQUIPMENT...

Страница 2: ...IS FOR USE ON GROUP H NATURAL GAS 2ND FAMILY I2H PLEASE ENSURE RELEVANT INFORMATION REQUIRED WITHIN DOCUMENT IS FOUND BEFORE FIRING BOILER THIS BOILER COMPLIES WITH ALL RELEVANT EUROPEAN DIRECTIVES PR...

Страница 3: ...s Supply 6 2 Ventilation 6 3 Pipework Valves and Pump 6 4 Flue 6 5 Electrical 7 0 CHECKS PRIOR TO LIGHTING 14 7 1 Boiler Gas System Leak Check 7 2 Checks Prior to Lighting the Boiler 7 3 Initial Light...

Страница 4: ...Display 15 Figure 7 3 2 Start Up Display Sequence 16 Figure 7 4 1 Removal of Sample Point Plug 17 Figure 7 4 2 Combustion Analyser Probe setting 17 Figure 7 4 3 Fan Assembly PV65he PV85he 18 Figure 7...

Страница 5: ...pen Flue Natural Draught B23 Flue System 45 Figure D1 Mechanical Ventilation Flow Rates 47 Figure E1 Water Data 48 Figure E1 1 Cold Feed and Vent Pipe Sizes 48 Figure E1 2 Typical Piping Layouts 49 Fi...

Страница 6: ...level water switch which protects the water pumps and will directly or indirectly shut down the boiler plant should a low water condition occur Consideration should also be given to the maximum worki...

Страница 7: ...er is designed to pass through a standard doorway where access is restricted NOTE The boiler is supplied with cardboard corner protection and shrink wrapped for protection during handling However when...

Страница 8: ...se provide details of your order such as order number and contract number as well as a detailed description of the missing item Reverse Return Header Sets Where reverse return header sets are used the...

Страница 9: ...top or display covers See Figure 3 1 below 3 2 The Hamworthy Heating Ltd water manifold kit is designed to provide a compact solution for connecting the boilers to the gas supply and flow and return...

Страница 10: ...ves are not required on each module and a common valve can be fitted in the combined flow pipe However each boiler has a Rp1 connection plugged in the rear of the boiler heat exchanger assembly for us...

Страница 11: ...on of boilers manifold kits pipework pumps controls flues ventilation access and servicing and other items of plant 4 2 Gas Supply Gas supply pipes must be in accordance with BS 6891 or IGE UP 2 Gas s...

Страница 12: ...sure and condense in flue Flue construction is recommended of a twin wall insulated type to maintain buoyancy within the flue Care should be taken to ensure that the flue system is installed in such a...

Страница 13: ...stem pipework is flushed twice before water treatment In hard water areas precautions such as water treatment should be implemented to prevent the build up of sludge and scale Leaks in the system pipe...

Страница 14: ...Condense may be discharged to a standard drain subject to National or Local regulations Boiler Condensate Connection 32mm o d Figure 4 5 1 Boiler Condensate Pipe Work Installation Figure 4 5 2 Positio...

Страница 15: ...erve the boiler Where volt free contacts are used these too must be individually isolatable Time clock control should be via the boiler modules Remote On Off circuit 30V DC Any circuit connected to th...

Страница 16: ...e is necessary 5 1 Flue Pipe So as to avoid damage the flue connecting pipe is supplied separately Fit the elbow to the base of the boiler and secure using the gasket and 4 M8 x 16 Hex Head Screws Moi...

Страница 17: ...open to atmosphere Hamworthy Heating Ltd provide a connection on the boiler for the safety valve Where using Hamworthy Heating Ltd pipework kits assembly of these is detailed in the Instruction manual...

Страница 18: ...Pipework and valve arrangement is installed to Hamworthy Heating recommendations Circulating system is full of water vented and pressurised appropriately Circulation pump is fitted working and interlo...

Страница 19: ...the electrical power and gas to the appliance 2 By unscrewing screw at Position X of Figure 7 1 1 remove the red gas pressure switch L H S picture or loosen the test point valve plug R H S picture 3...

Страница 20: ...on non domestic gas appliances should attempt the following operations Before attempting to commission any boiler ensure that personnel involved are aware of what action is about to be taken Record al...

Страница 21: ...al Assessment The flame ionisation signal generated whilst the boiler is firing can be viewed directly from the display screen The value is set to read dc A Refer to 8 7 1 3 7 3 4 Adjusting the settin...

Страница 22: ...operating correctly 8 Remove the combustion analyser probe replace the sample point plug in the front of the base of the boiler 9 If the combustion readings fall outside the required range DO NOT adj...

Страница 23: ...Fan Assembly PV65he PV85he High Fire Gas Air Adjustment Factory Sealed Pressure Feed Back Tube Outlet Gas Pressure Test Point Low Fire Gas Adjustment Factory Sealed Pressure Switch Pressure Switch Lo...

Страница 24: ...to 8 multiple boilers by selection of Master Slave configuration Note To ensure safe and reliable operation all wiring between sensors master slave boilers must be separated from mains voltage wiring...

Страница 25: ...m EEPROM corrupted flash memory too many restarts after detecting a fault etc the control will lock up and nothing will work including reset with the display registering the last message The only way...

Страница 26: ...lay a lock out To clear a lock out press the enter button to reset the boiler To access the service mode press the Exit Button for 5 seconds A four digit numerical code must be entered to enable the e...

Страница 27: ...mperature and the desired set point calculated by the heat curve and User setting Should there be no mixed flow sensor fitted the Master will allow all Slaves to operate at maximum power Adjustment of...

Страница 28: ...ler becomes less than Pdown then the last boiler switched on is switched off and the power divided between the firing boilers see figure 8 5 2 4 1 8 5 2 4 2 Boiler switching On Off The description abo...

Страница 29: ...p is not provided by the Master 8 5 3 Boiler Management System This mode of operation relates to a 0 10V dc control signal from a BMS to individual boiler modules and by setting the relevant parameter...

Страница 30: ...imer has elapsed the burner will switch ON The regulation is based upon PI control but the maximum capacity of the boiler can be limited by step modula tion refer to section 8 5 7 3 8 5 5 Frost Protec...

Страница 31: ...perature at the start of the block 8 5 7 2 Control of flow temperature gradient The flow temperature gradient is activated by the following heat demand BMS based on temperature Remote On Off After swi...

Страница 32: ...ure switch or low gas pressure switch will result in a block on all heat demands with corresponding message on the display screen 8 5 7 6 Fan Speed Control The fan will modulate to the setpoint determ...

Страница 33: ...et by the relevant parameters 8 6 5 Error Blocking The last 10 errors and the last 10 blocks are stored in separate tables together with the date and time which they occurred Both tables are accessibl...

Страница 34: ...lisation and normal modulation control BLR RUN 065 RATE PUMP RUN Boiler Post Purge End of a firing or ignition sequence BLR POST PURGE PUMP RUN Temperature Overshoot Blocking due to high flow temperat...

Страница 35: ...4320rpm FLAME SIG 03 5 A Figure 8 7 1 3 Fan Speed Flame ionisation Screen Status Description LCD Display Remote Control On Off Input Showing the Remote Control Input the Analogue Input signals REMOTE...

Страница 36: ...ove security levels such that parameters can be changed After pressing the Exit button for 3 seconds the display shows a four digit sequence zeros After entering the security number press enter again...

Страница 37: ...6 L OCKO U T NORMA L RUN O VE RHEAT SLAVE SI GNA L MULTI CORE CABLE SLAV E S CREE N OUT H S I PROBE HHL P ART 563801016 GROUND TERMINAL CO NNECT O R BRACKE T CONTROLS TAB ON GND 2 BOI LE R COMP ONE N...

Страница 38: ...ow the controllers minimum 1 2 A DC the controller will make 1 attempt to re light If this attempt is unsuccessful a non volatile lockout occurs which requires a manual re set on off button situated o...

Страница 39: ...assembly can be removed by withdrawing upwards Check condition of igniter assembly and probe for damage Clean as required Check burner surface and clean using a soft brush if required if possible use...

Страница 40: ...Heating strongly recommend that a new gas valve assembly is fitted to ensure safe reliable operation of the boiler The gas valve is supplied as a factory set component must not be tampered with 1 Disc...

Страница 41: ...s Figure 11 2 Gas Valve Assembly model 65 he 85 he shown for illustration 531201103 Fan Airbox Seal 532407002 Airbox 531201104 Venturi Seal 532418003 Venturi Clamp 533001029 Baffle 532418002 Venturi 5...

Страница 42: ...ket 531201102 Fan Elbow Seal RG148 Fan 532418002 Venturi 563801016 HSI 533805015 Flame Probe 530650354 Control Cover 748551010 1 4 Turn Screw 530650352 Front Cover Molding 530650346 Lower Front Cover...

Страница 43: ...stat Pocket 531201121 Burner Gasket 524120042 Combustion Chamber 531201120 Section Seal 53201204 Tie Rod 524120043 Heat Exchanger 524120045 Heat Exchanger 531050011 R1 4 Sensor Pocket 532403217 Inlet...

Страница 44: ...039 Flow Return Sensor 533901431 Temperature Limiter 533901179 Hot Surface Igniter 563801016 Flame Sensing Probe 533805015 T2A 5x20 Fuse 533922002 T1 25A 5x20 Fuse 533922011 T3 25A 5x20 Fuse 533922005...

Страница 45: ...maximum kW Nett 72 1 96 8 118 1 Boiler Output maximum 80 60 C kW 65 85 105 Boiler Output minimum kW 21 5 30 1 33 6 125 he 154 3 139 76 125 39 8 Natural Gas GAS DATA Gas Inlet Connection Pipe Thread Si...

Страница 46: ...other MUST NOT be supplied from different phases of a 3 phase supply The method of connection to the mains electricity supply must facilitate complete electrical isolation of the single boiler with a...

Страница 47: ...HAMWORTHY HEATING LTD 42 PUREWELL VariHeat he 500001155 F Figure B1 2 External Control Wiring for Multiple Boiler Installation...

Страница 48: ...that twin wall or insulated flue pipe is used on all external flue installations b Care should be taken to ensure that the flue is installed such that any condensation is continuously drained All flue...

Страница 49: ...erminate in a freely exposed position and be so situated as to prevent the products of combustion entering any opening in a building Where the flue diameter is less than 170mm 7 diameter a terminal mu...

Страница 50: ...bend 150mm Equivalent tube length m 2 2 2 90 bend 150mm Equivalent tube length m 2 2 2 2 2 3 125 he 47 2 2 3 Straight tube 100mm maximum length m 19 12 8 5 45 bend 100mm Equivalent tube length m 1 3 1...

Страница 51: ...r kW of total rated input Net High level output 2cm per kW of total rated input Net Compartment ventilation Where the boiler is to be installed in a cupboard or compartment permanent high and low leve...

Страница 52: ...vicing of the boiler modules the boilers should not be fired whilst building work is being undertaken High and low level ventilation grilles shall be positioned as high and as low as practicably possi...

Страница 53: ...iler module has R2 male flow indicated with a red spot and return indicated with a blue spot connections Boilers should be connected by flow and return headers Headers should be connected to the syste...

Страница 54: ...Air Vent Automatic Valve valve Drain Valve Module Hamworthy Modular Boilers Safety T valve Module 1 2 Drain 3 Module P gauges Pressure Temperature T Automatic Air Vent Heating load Lockshield valve f...

Страница 55: ...ensure that the minimum flow rate can be obtained It is also important that the existing system be flushed through twice to remove any loose matter which may have accumulated If in any doubt regardin...

Страница 56: ...the expansion vessel required Care must be taken in sizing expansion vessels to ensure maximum acceptance factors are not exceeded Normally manufacturers of vessels impose a limit of 0 5 This value mu...

Страница 57: ...TING LTD 52 PUREWELL VariHeat he 500001155 F Figure E 1 3 4 Schematic for Multiple Boiler Internal Cascade Primary Circuit System Figure E 1 3 3 Schematic for Multiple Boiler External 0 10V Primary Ci...

Страница 58: ...HAMWORTHY HEATING LTD 53 PUREWELL VariHeat he 500001155 F NOTES...

Страница 59: ...HAMWORTHY HEATING LTD 54 PUREWELL VariHeat he 500001155 F USEFUL USER INFORMATION NOTES INSTALLER SITE ADDRESS BOILER TYPE BOILER SIZE S UNIT NO S SERIAL NO S FLUE...

Страница 60: ...s Regular routine servicing of equipment by Hamworthy service engineers inspects the safety and integrity of the plant reducing the risk of failure and improving performance and efficiency Maintenance...

Страница 61: ...Notes...

Страница 62: ...00 353 145 84806 Northern Ireland HVAC Supplies Limited Unit A6 Dargan Court Dargan Crescent Belfast BT3 9JP tel 02890 777737 fax 02890 771233 Scotland McDowall Modular Services 14 46 Lomond Street Gl...

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