Euromatic Service Manual - Jan 2002
Contents
1. If a full service is being undertaken then complete sections 7 3 and 7 4 before continuing 14 Reassemble the injectors burners and cross lighting assembly in reverse order to that above CAUTION Ensure that the cross lighting strip is assembled as shown in Fig 5 Item 2 locates under the rolled edge around the burner flame strip and Item abuts onto the top of the burner 7 3 Ignition and Rectification Electrodes 1 Inspect the electrodes making sure that they are in a sound and clean condition In particular check that the ignition electrode is clean undamaged Check that the spark gap is 3 0 4 0mm See Fig 6 and that the rectification probe is 10 12mm above the burner Fig 6 Ignition Electrode Spark Gap 3 4mm 7 4 Flueways Whilst the main burner assembly is removed from the appliance a mirror and torch should be used to check that the flueways and internal airways are clean 7 5 Main Fan Assembly 7 5 1 Euro F Models 1 Inspect the fan blades to see that they are not damaged and that there is no excessive build up of deposits that could give front plate of burner tray not shown rise to an imbalance Should it be necessary to remove the assembly for cleaning proceed as follows 2 Slacken the cable gland on the heater casing through which the fan electrical cable passes 3 Open the controls section access door and disconnect the fan leads from the electrical terminals 4 Withd2. 45 280 NA 279 NA Euro90 13 151 300 NA 418 NA Table 4 Electrical Loadings 1ph Note 3ph Data is supplied seperately with units ordered to this specification Standard Airflow High AirFlow MOTOR PLATE START RUN FUSE MOTOR PLATE START RUN FUSE MODEL RPM AMPS AMPS RATING poy AMPS AMPS AMPS RATING mE A NN A m 1 6 1 23 100 1 80 1 33 15 50 2 50 ae Euro 22C 9 0 5 50 Euro 9 0 5 50 85 170 Peso ss FU 1500 2 32 0 E EIN esp cic m za ese 7 3 80 Euro Er T Euro 60C Euro75C aoe E Inlet pressure 20mbar Inlet Pressure 37mbar Note Euromatic 105 120 and 150 units are double units and use two sets of the Euromatic 52 60 and 75 fans respectively Current values and fuse values are twice those given for the single units Table 5 Damper Settings Euromatic C Units Standard Airflow MODEL Euro 15 10 6327 m 192 o DESIGN AIRFLOW Euro 22C 0 7172 m Euro 30C 0 8438 m3 s Euro 45C Euro 52C Euro 60C Euro 75C Euro90C 1 w 2 o 192 9o 180 4925 m3 s 40 30 2 76 M 41 Note TE Distance of Damper Plate from Fan Casing 1 74 202 212 ES Euromatic 105 120 and 150 units are d
3. Shown Plan View for G 1 Side View 2 Top Flue Outlets Combustion B e Air Inlet E F Flue D Outlet 178 142 Rl 99 142 176 M 90 Plan View for Front View Side View F Version Shown Top Flue Outlets B Euro 105 150 J Front View c Combustion Air Inlet F Flue Outlet 178 142 F 96 o Flue Outlet a cepa 646 H Side View 211 212 324 r 142 Plan View for Top Flue Outlets 176 Table 1 Dimensions AB JE HS Euro15 H 1207 Euro22 595 1020 Euro30 m 1207 Euro45 E 1257 Euro52 Euro60 935 1295 Euro 75 1083 E 1077 _ 870 1 m 1257 1091 892 1460 1295 1077 1257 1760 E Table 1a Exhaust Fan Mounting Plate Inlet Diameters zi Note Length in mm of oblong notch on plate side equals unit size MAXIMUM DUCT LOW FIRE AIR VOLUME FAN MOTOR MODEL ELLO ourPuT NPUT output standard Standard Standard EH uidi pep tt 0 355 110 25 57 13 39 11 25 0 6327 0 8060 0 100 26 245 0 550 110
4. ae 35 0 550 1 10 110 51 14 26 78 0 8705 1 1813 0100 20 0 560 155 ea 0 120 134 59 66 52 5 31 25 26 25 1 0569 1 4347 R 74 200 0 990 1 50 155 Euro 75 F 85 23 75 0 44 64 37 5 1 4925 2 0255 0 370 153 0750 185 F 102 27 51 13 42 44 17410 2 3626 2 x 0 100 270 BEN ED 710 316 F 1055 940 7192 618 21138 28694 o g P as eei epee ee S C uo oe g Fl l ee Available as E variants only Table 2 aer m 0 I Table 3 1 Injector Sizes amp Burner Pressures Natural Gas Group H G20 Net CV Hi 34 02MJ m3 Inlet INJECTORS EUG Burner voor qe Sin tenes mew mom Euro 15 5 1 51 151 182 18 45 094 Euro22 6 17 170 155 27 45 in Euro30 8 17 170 155 36 45 189 Euro 45 6 2 46 246 155 54 45 283 Euro52 7 2 46 246 155 6 45 330 Euro6o 8 2 46 246 155 721 45 37 Euro90 13 26 260 120 1082 30 541 LEwowsE 14 f 2 46 ze 125 ni 53 78 Table 3 2 Injector Sizes amp Burner Pressures e G31 Net CV Hi 88 00MJ m Inlet Pressure INJECTORS EL AES 37mb ES esc ad Ted 5 093 Burner 0 70 NA eae I Euro30 8 1 04 150 139 NA NA 45 6 1 45 280 NA 209 NA NA Euro52 7 1 45 280 NA 244 NA NA Euro60 8 1
5. gas soundness around pressure test joint using a leak detection fluid e g soap solution Replace access panel 6 6 2 Air Heater Controls 1 Close the gas service tap and ensure that the gas valve is heard to close within 1 second and that the lockout light is illuminated Note that the heater may attempt one reignition before going to lockout Open the gas service tap and reset the unit from lockout 2 Check that the room thermostat and all automatic controls are operating satisfactorily 6 7 Handing over the Air Heater Hand the Users Instructions to the user or purchaser for retention and instruct in the efficient and safe operation of the air heater and associated controls Adjust the automatic controls to those values required by the User Finally advise the user or purchaser that for continued efficient and safe operation of the air heater it is important that servicing is carried out annually In the event that the premises are not yet occupied turn off the gas and electricity supplies and leave instructional literature adjacent to gas meter 7 Servicing WARNING Always switch off and disconnect electricity supply and close the gas service valve before carrying out any servicing work or replacement of failed components NOTE 1 If a suspended air heater is to be serviced do not lean ladders against the heater Ensure that an access tower or equivalent is used 7 1 General Full maintenance should be undertaken not
6. less than once per year by a qualified person After any servicing work has been complete or any component replaced the air heater s must be fully commissioned and tested for soundness as described in Section 6 7 2 Main Burner Assembly Removal 1 Ensure that the gas service valve is turned OFF and then unscrew the union nut situated immediately down stream of it 2 Open the side access door 3 Disconnect the electrical connections from the multifunctional control and disconnect the ignition and rectification leads from the full sequence control 4 Remove the inner burner securing plate by removing the securing screws 7 Pull the burner tray out For suspended air heaters it is Fig 5 Cross Lighting Assembly Detail Euro 15 90 recommended that the burner assembly is taken down to floor level before proceeding 10 Release the nuts securing the cross lighting strip assembly and remove the two strips see Fig 5 1 amp 2 11 Remove each burner by lifting up at the cross lighting strip end and then disengaging from its injector Using a stiff brush not a wire brush brush the flame strips to dislodge accumulated deposits Inspect the burners both internally and externally to ensure that they are clean Examine the injectors and if damaged or deteriorated replace with new ones of the correct size and marking see Section 2 tables 3 1 3 2 and 3 3 If deemed necessary clean the injectors Do not broach out with wire NOTE
7. maintain high fire Compare the measured burner gas pressure to that stated in Section 2 In addition it is advisable to check the gas rate using the gas meter dial pointer Ensure that no other appliances supplied through the meter are in operation 3 Repeat 2 above with external controls set to maintain low fire 5 If it 18 necessary to adjust the high pressure setting then 11 proceed from step 1 If it is only necessary to adjust the low fire pressure setting proceed from step Refer to Fig 4 i Set external controls to turn main burner OFF ii Pull back the clip D retaining the actuator coil to its mounting stem and remove the coil 111 Set external controls to turn main burner ON iv Screw adjustment screw A fully clockwise v Release the M13 locknut E that secures the actuator stem B into the mfc governor pack and turn the actuator stem to set the HIGH FIRE pressure clockwise to increase pressure vi Tighten the locknut without further turning the actuator stem vii Unscrew adjustment screw A to set the LOW FIRE pressure anti clockwise to decrease pressure viii Set external controls to turn burner OFF and replace valve body C onto the valve stem ensuring that it clips into position 6 Turn off the main burner as in 6 6 1 1 disconnect the pressure gauge and replace the sealing screw Turn on the main burner as in 6 6 1 2 above and test for
8. thermostat is being commissioned Where inter joist spaces are used as duct routes they should be suitably lined with a fire resisting material A full and unobstructed return air path to the air heater s must be provided If the air heater s is installed in a plant room the return air intake s and the warm air outlet s from the heater s must be fully ducted into and out of the plant room to avoid interference with the operation of the heater The openings in the structure of the plant room through which the ducting passes must be fire stopped Care must be taken to ensure that return air intakes are kept clear of sources of smells and fumes and in special circumstances where there is any possibility of pollution of the air by dust shavings etc precautions must be taken by carefully positioning return air intakes and by the provision of screens to prevent contamination In addition where there is a risk of combustible material being placed close to the warm air outlets suitable barrier rails should be provided to prevent any combustible material being within 900mm of the outlets 3 7 Electrical Supply Wiring external to the air heater must be installed in accordance with the LE E Regulations for Electrical Installations and any local regulations which apply Wiring should be completed in flexible conduit All standard heaters are supplied by 230V 1ph 50Hz The method of connection to the main electricity supply must facili
9. 6 7 6 3 Electrode Assembly 1 Disconnect the ignition lead from the control box and the rectification lead from the terminal strip 2 Remove the two screws securing the electrode assembly to the burner front plate and withdraw the assembly 3 Fit replacement and reassemble in reverse order Check that the spark gap is 3 0 4 0mm See Fig 6 and the rectification electrode is 10 12mm above the burner 7 6 4 Fan and Limit Thermostat NB Ensure that the thermostats are set correctly before fitment Fan Thermostat all units 30 C preset Limit Thermostat all units 100 C preset 1 Remove the securing screws from the thermostat phial mounting plate remove plate and unclip the appropriate phial 2 Remove the securing screws of the appropriate thermostat and remove thermostat from the back of the mounting panel Remove the electrical connections 3 Fit replacement thermostat in reverse order 13 7 6 5 Exhaust Fan Run On Thermostat 1 Unclip the thermostat phial located adjacent the exhaust fan 2 Remove the securing screws of the appropriate thermostat and remove thermostat Remove the electrical connections 3 Fit replacement thermostat in reverse order 7 6 6 Exhaust Fan 7 6 6 1 Euro 15 60 1 a Side flue connections disconnect the flue system remove the lower side access panel and then release the panel above it Pull this panel off bringing with it the connection pipe from the exhaust fan outle
10. Between units back to back 3 0m Recommended mounting heights floor level to the underside of the unit are Euro 15F 30F 2 5m 3m Euro 45F 90F 3m 5m Euro C and D Models Recommended mounting heights not applicable All models Must not be installed at a height of less than 2 5m to the base of the unit Any combustible material adjacent to the air heater and the flue system must be so placed or shielded as to ensure that its temperature does not exceed 65 IMPORTANT 1 To facilitate removal of the burner tray there must be no projection or fixture in front of the left hand access panel when viewed from the front of the unit The distance in which this is applicable is the same as the width of the heater 2 Heaters shall not be installed in a Those parts of spaces within buildings that have been classified as hazardous areas as defined in BS 5345 Part 2 b Where there is a foreseeable risk of flammable particles or gases or corrosion inducing gases or vapours being drawn into either the heated air stream or the air for combustion In such cases installation may only proceed if the air to be heated is ducted to the heater from an uncontaminated source preferably from outside the building The option of taking combustion air from the space is not permitted In certain situations where only airborne particles are present it may suffice to fit filters on the main air inlet duct of the heater Advice in thes
11. CE The Euromatic Range Series 2 Installation and Servicing Instructions WARNING THIS APPLIANCE MUST BE EARTHED 2 50 When supplied separately Euro Range Issue 8 J anuary 2002 CONTENTS Section Title Page 1 Introduction 1 2 Technical Data 2 3 General Requirements 5 4 Installation 7 5 Air Distribution System 9 6 Commissioning amp Testing 9 7 Servicing 11 8 Connections to External Controls 14 9 Fault Finding 15 10 Short List of Parts 15 Tables Title Page 1 Dimensions 3 1a Exhaust Fan Mounting Plate Inlet Diameters 3 2 Specifications 3 3 1 Injector Sizes amp Burner Pressures Natural Gas Group H G20 4 3 2 Injector Sizes amp Burner Pressures Propane G31 4 4 Electrical Loadings 1ph 5 5 Damper Settings Euromatic C Units 5 Figure Title Page 1a Horizontal Side outlet flue arrangement 8 1b Horizontal Top outlet flue arrangement 8 1c Vertical Top outlet flue arrangement 8 2 Controls Location 10 3 SIT Nova 822 10 4 High Lo and Modulating Heads 11 5 Cross Lighting Assembly Detail Euromatic 15 90 11 6 Ignition Electrode Spark Gap 12 1 INTRODUCTION The Euromatic range of gas fired fanned circulation air heaters cover a heat output range of 15kW to 150kW have a closed combustion circuit and are supplied complete with a flue system They are certified for use on Natural Gas Group H G20 and Propane G31 only Appliance Categories are Cat II2H3 with the exception of the Eu
12. al on the same wall 300mm horizontally from another terminal on the same wall 2000mm from ground level 4 3 1 Installation of Flue System 4 3 1 1 Horizontal System Standard see Fig and 1b 1 Locate the position of the flue terminal allowing for a slight gradient down to the heater 2 3 and cut a hole to suit 2 Fit the flue terminal securing via the wall plate and weather with silicon sealant or similar 3 Extend the concentric flue to the heater using straight lengths fitting an adjustable length prior to the connector to facilitate flue disconnection for servicing Fit connector to the heater inlet outlet spigots ensuring that the connector spigot that is central to the concentric flue fits into the flue outlet socket Extend the adjustable length to make the final connection Do not exceed the maximum extended length so as to maintain joint integrity 4 Ensure that internal silicon sealing rings are in place and that all tubes are pushed fully home Secure concentric lengths with the locking band provided 4 3 1 2 Horizontal System Internal Combustion Air 1 Complete the run of flue sections from the terminal spigot to the flue outlet socket of the heater ensuring that the internal silicon sealing rings are in place 2 Fit a 90 bend to the combustion air inlet socket with the inlet facing to the front of the unit top outlet or downwards side outlet 4 3 1 3 Vertical System see Fig 1c Page 8 1 Loca
13. c MD1003 MD Amplifier board Johnsons PIB 24 Exhaust Fan Sifan WFFB 0223 006 Exhaust Fan Airflow Developments 52BTXR 8 Pin Relay 230V Kromschroder Pressure Switch DL5K 3W302 APPLICATION PART NUMBER All 142400431 All 142400625 45 150 142400212 15 30 142400234 All 142403606 All 142403608 45C 150C All 3ph All 142400430 All HL 142466410 All MOD 142466421 All MOD 142400304 15 60 140210499 75 150 140210498 All 143000813 All 145604643 15 BSI Registered Firm FM 414 eS 5750 Ind amp Comm Air Heaters Air Moving Equipment g Flues amp Chimneys Natural Smoke amp Heat Ventilators Powered Supply amp Extract Or _ Every effort is made to ensure accuracy at time of going to press However as part of our policy of continual product improvement we reserve the right to alter specifications without prior notice
14. d Heaters suspended by drop rods straps or chains must have a flexible connection as the final link between the gas supply pipework and the heater Sufficient slack must be left in the connection to take account of normal movement of the heater Warning When completing the final gas connection to the heater do not place undue strain on the gas pipework of the heater 4 5 Electrical Connections All units are fully prewired and only require final connections for the incoming mains supply and completion of the control circuit 230V via a room thermostat time clock etc and the Fig 1b Horizontal Top Outlet Terminal Length s 90 Bend Connector Adjustable Length Side View Notes for all systems 1 ii iii Final overall length of adjustable disconnection piece must be between 360 415mm 45 offsets may be used if required Each is equivalent to 0 5m of flue length Where Euromatic heaters are used in clean environments it is permissible to take the combustion air directly from the heated space A 90 inlet bend with mesh intake must be fitted to the combustion air inlet remote low level lockout reset The electrical supply must be run to a point adjacent to the heater and be suitably terminated to provide an isolation point that will prevent remote activation of the unit during servicing Reference must be made to Table 4 Page 5 to ascertain the electrical loading of the air heater s being i
15. dings having a design air change rate of less than 0 5 h and where Euromatic units are to be installed in heated spaces having a volume less than 4 7 m kW of total rated heat input grilles shall be provided at low level as follows 1 for heaters of heat input less than 60 kW the total minimum free area shall not be less than 4 5 cm per kilowatt of rated heat input 2 for heaters of heat input 60 kW or more the total minimum free area shall not be less than 270cm plus 2 25 cm per kilowatt in excess of 60 kW rated heat input Where the air heaters s is to be installed in a plant room the the plant room must have permanent air vents communicating directly with the outside air at high level and at low level Where communication with the outside air is possible only by means of high level air vents ducting down to floor level for the lower vents should be used All air vents should have negligible resistance and must not be sited in any position where they are likely to be easily blocked or flooded or in any position adjacent to an extraction system which is carrying flammable vapour Grilles or louvres should be so designed that high velocity air streams do not occur within the plant room The basic minimum effective area requirements of the air vents are as follows a Low Level inlet 1 for heaters of total rated heat input less than 60kW 9cm per kilowatt of rated heat input 2 for heaters of total rated heat input 60 KW or m
16. e instances may be obtained from Powrmatic Ltd c In areas subjected to significant negative pressures due to extract systems 4 2 Fitting the Air Heater The air heater may be installed either a suspended from suitable vertical drop rods chains or straps b on specifically designed cantilever brackets from a non combustible wall level noncombustible surface providing the surface does not extend past the front edge of the heater Note that the hinged base facility will not be available in this situation Whatever method of installation is used it must be capable of adequately supporting the weight of the unit See Table 2 Page 3 and allowance must be made for any ancillary equipment Before installing the heater any existing trusses walls brackets etc must be inspected to ensure they are suitable All supports should be protected against the effects of rust or corrosion If noise levels are of particular importance the heater should be insulated from the structure of the building by installing it on suitable anti vibration mountings In all such cases and in addition when the heater is suspended it is essential that all gas duct and electrical connections to the heater are made with flexible connections to maintain continuity of connection 4 3 Flue Combustion Air Duct System All models are provided with two sockets either at the side or the top of the unit as ordered one for combustion air and the oth
17. ection using a leak detection fluid e g soap solution 6 5 1 All Models 1 Switch on the electrical supply at the isolator and the ignition sequence will commence After a delay of approximately 30 seconds the ignition spark will be generated and the main gas valves energized The burners will then light 2 If the burners fail to light the control box will go to lockout and the lockout light on the low level remote reset will be illuminated To restart the ignition sequence depress the reset button on the low level reset 3 SHUT OFF Switch OFF the electrical supply to the heater or set the clock control to OFF or set the room thermostat to MIN 6 6 Adjustments 6 6 1 Burner Gas Pressure This is set for the required heat input before despatch In the case of Hi Lo and Modulating units both high and low pressures are set Pressures should be checked in the following manner 6 6 1 1 Standard Units 1 Set external controls to ensure that the main burner is off Open the side access door Connect a pressure gauge to the burner pressure test point on the multifunctional control 2 Set external controls so as to turn on the main burner Compare the measured burner gas pressure to that stated in Section 2 If necessary adjust the burner gas pressure by turning the regulator screw Fig 3 1 anticlockwise to decrease the pressure or clockwise to increase the pressure 4 In addition it is advisable to check the gas rate using the gas mete
18. em The system should be checked to ensure that the installation work has been carried out in accordance with the design requirements Particular attention should be given to the correct arrangement of delivery ducts and registers return air ducts and grills and general adequacy of return air paths For Euro C standard airflow units refer to Table 5 Page 5 to ascertain the fan damper setting to match the resistance of the ductwork Euro C high airflow units are matched to the duct resistance Table 2 Page 3 and the ductwork must be balanced 10 accordingly 6 4 Checks before lighting the Air Heater The following preliminary checks should be made before lighting the heater s a Ensure that the ELECTRICAL supply to the heater is switched OFF b Check that all warm air delivery outlets are open c Check that the thermostat is set at MAX d Check that the clock control is set to an ON period e Check that any other controls are calling for heat f If a Eurotrol or Powrtrol is being used ensure that the Summer Winter switch is in the Winter position g Check that the overheat reset button has not operated 6 5 Lighting the Air Heater NOTES 1 On initial lighting of the heater s it may take some time to purge the internal pipework of air IMPORTANT The internal pipework of the appliance has been tested for soundness before leaving the factory After establishing the main burners test round the gas inlet conn
19. er for the products of combustion See Section 2 Page 2 In all cases the flue outlet socket must be connected via the provided flue system to outside air The combustion air socket need not be connected if site conditions permit see 4 1 and it is required to take the combustion air from the space being heated In these instances a 90 bend with mesh inlet must be fitted to the air inlet socket The maximum permitted length of flue system is i for side outlet horizontal 3m ii for top outlet vertical 4m iii for top outlet horizontal 90 bends inc 3m The maximum permitted length of flue outlet only is double the above lengths If an offset is required two sets of 45 bends may be used each set being equivalent to 0 5m of flue length The minimum flue length end of flue terminal to back or top of heater shall not be less than 1 0m for the Euro 15 60 and 1 3m for the Euro 75 and 90 All outer joints must be finished with the provided locking bands Application of a smaer of silicon grease to the inside of sockets will assist in fitting components together All flue and combustion air ducts must be supported independently of the air heater The flue or flue combustion air terminal must not be installed so as to be less than 300mm below an opening eg window air brick etc 200mm below eaves or gutter 300mm from an internal or external corner 1200mm from a surface facing the terminal 1500mm vertically from another termin
20. he total rate of gas supply required 3 3 3 Installation Pipes Installation pipes should be fitted in accordance with IM 16 1988 Pipework from the meter to the air heater must be of adequate size Do not use pipes of a smaller size than the inlet gas connection of the heater The complete installation must be tested for soundness as described in the above Code The complete installation must be tested for soundness as described in BS 6230 3 3 4 Boosted Supplies Where it is necessary to employ a gas pressure booster the controls must include a low pressure cut off switch at the booster inlet The local gas undertaking must be consulted before a gas pressure booster is fitted 3 4 Flue System Euromatic units feature a closed combustion circuit and have an internal exhaust fan mounted downstream of the heat exchanger to both assist the evacuation of the products of combustion and to draw in air for combustion The air heater must be connected to the flue system that is provided by Powrmatic Ltd Several configurations of flue and combustion air ducts are available as shown diagrammatically See Page 8 Figs la Ic The flue should terminate in a freely exposed position and must be so situated as to prevent the products of combustion entering any opening in a building in such concentration as to be prejudicial to health or a nuisance 3 5 Air Supply When the air inlet duct is terminated within the space being heated then for buil
21. ing 60kW Ist and 2nd family gases Part 2 Air Supply For Euro D appliances of 15 45 size reference should also be made to BS 5864 Code of Practice for installation of gas fired ducted air heaters of rated input not exceeding 60kW 3 2 Location The location chosen for the air heater must permit the provision of a satisfactory flue system and an adequate air supply The location must also provide adequate space for servicing and air circulation around the air heater The heater s must not be installed in conditions for which it is not specifically designed e g where the atmosphere is corrosive or salty and they are not suitable for outdoor use Where the location of the air heater is such that it might suffer external mechanical damage e g from overhead cranes fork lift trucks it must be suitably protected Euromatic units are designed to operate in a maximum ambient temperature of 25 3 3 Gas Supply 3 3 1 Service Pipes The local gas undertaking should be consulted at the installation planning stage in order to establish the availability of an adequate supply of gas An existing service pipe must not be used without prior consultation with the local gas undertaking 3 3 2 Meters A gas meter is connected to the service pipe by the local gas undertaking or a local gas undertaking contractor An existing meter should be checked preferably by the gas undertaking to ensure that the meter is adequate to deal with t
22. nstalled so that cables of adequate cross sectional area are used for the electrical installation The length of the conductors between the cord anchorage and the terminals must be such that the current carrying conductors become taut before the earth conductor if the cable or cord slips out of the cord anchorage All external controls must be of an approved type See the wiring diagram accompanying these instructions Euro D models must be electrically interlocked to the air movement system so that this is started in the same manner as the air heater fan would be connection from heater terminal No 5 must be made to one side of the fan motor contactor coil the other side of the coil being connected to Neutral Under no circumstances must the fan motor electrical supply be taken direct from the internal wiring of the Euromatic heater 5 Air Distribution System 5 1 General Euro C and D models are designed for use with duct work to more precisely define the point of air delivery and or provide ducted return air or ducted fresh air inlet If inlet ductwork is used heaters must be ordered with fan inlet sections in order to maintain service access to the centrifugal fan s All ducting must be independently supported of the air heater Joints and seams of supply ducts and fittings must be securely fastened and made airtight 5 2 Noise Reduction It is recommended that ducting should be connected to the heater spigots via an airtigh
23. ore 540 cm plus 4 5 cm per kilowatt in excess of 60 kW total rated input b High Level outlet 1 for heaters of total rated heat input less than 60 kW 4 5cm per kilowatt of rated heat input 2 for heaters of total rated heat input 60 kW or more 270 cm plus 2 25 per kilowatt in excess of 60kW total rated input 3 6 Air Distribution System The following notes are of particular importance For free blowing units used in buildings having a low heat loss i e where single units are required to cover a large floor area and in buildings with high roof or ceiling heights Calecon thermal economiser units should be fitted to ensure even heat distribution and minimise stratification respectively Care should be taken to avoid impeding the air throw with racking partitions plant or machinery etc Various outlet configurations are available as optional extras to modify the air throw pattern to suit particular site conditions For ducted units all delivery and return air ducts including air filters jointing and any insulation or lining must be constructed entirely of materials which will not contribute to a fire are of adequate strength and dimensionally stable for the maximum internal and external temperatures to which they are to be exposed during commissioning and normal operation In the selection of materials account must be taken of the working environment and the air temperatures which will result when the overheat limit
24. ouble units and use two sets of the Euromatic 52 60 and 75 fans respectively Damper settings shown for the single units should be applied to both fans 3 General Requirements 3 1 Related Documents The installation of the air heater s must be in accordance with the rules in force and the relevant requirements of the Gas Safety Regulations Building Regulations and the I E E Regulations for Electrical Installations It should be in accordance also with any relevant requirements of the local gas region local authority and fire authority and the relevant recommendations of the following documents British Gas Plc Publications IM 16 1988 Guidance notes for the installation of gas pipework boosters and compressors in Customer s premises excluding domestic installation of 25mm and below British Standards Code of Practice BS 5588 Fire precautions in the design and construction of buildings Part 2 1985 Code of Practice for Shops Part 3 1983 Code of Practice for Office Buildings BS 6230 1991 Installation of Gas Fired Forced Convection Air Heaters for Commercial and Industrial Space Heating Those appliances having a gross input rating not exceeding 60kW viz Euro 15 to Euro 45 inclusive and installed so as to take their combustion air from within the building must be installed in accordance with the relevant recommendations of the following document BS 5440 Flues and Air Supply for gas appliances of rated input not exceed
25. out reset Limit thermostat tripped reset Faulty control box Faulty fan relay Faulty exhaust fan Check that air pressure switch is changing over as exhaust fan starts Faulty control box Ignition spark gap wrong or ignition electrode lead shorting to earth Faulty control box Faulty gas control valve Check that gas is available to the unit Rectification electrode position wrong electrode lead damaged check flame signal Fan thermostat faulty or set too high Main air fan faulty If Summer Winter switch fitted check that on Summer setting the fan runs External controls or Summer Winter switch if fitted set to Summer position Faulty fan thermostat check setting See Section 7 6 5 Fan motor or capacitor failed replace 2 Fan thermostat faulty replace Fan contactor failed replace 3ph units Only originally specified parts may be fitted as service replacements Please refer to Powrmatic Ltd for any parts not detailed in the listing below ITEM MFC SIT Nova 822 0 822 117 Ignition Rectification Electrodes Johnson 27B2P6TO0000CIW Burner Bar Bray AB 17510 Burner Bar Bray AB 17509 Thermostat Fan amp Exhaust fan overrun Cotherm GTLH3148 30 C Thermostat Limit Cotherm SBSC0011 110 C Contactor Klockner Moeller DIL EM 10 Full sequence control Pactrol P16 FI CE Hi Lo Governor Head Anglo Nordic MD20003 Modulating Governor Head Anglo Nordi
26. r dial pointer Ensure that no other appliances supplied through the meter are in operation 5 Turn off the main burner as in 6 6 1 1 disconnect the pressure gauge and replace the sealing screw Turn on the main burner as in 6 6 1 2 above and test for gas soundness around pressure test joint using a leak detection fluid e g soap solution 6 6 1 2 High Lo and Modulating Heads Fig 4 2 Controls Location Euro 15 90 1 SIT 822 Nova M F C 2 Gas connection Rp934 3 Viewing port 4 Exhaust fan run on thermostat 5 Fan thermostat 6 Limit Thermostat reset button Electrical Panel Fig 3 SIT 822 Nova 1 Pressure Regulator cap screw 2 Inlet pressure test point Burner pressure test point 4 Electrical connections for gas valve operators A Low pressure A D setting screw x B Valve stem B Valve body EE D4 Locking spring C Modulating Head D1 Do Locking spring iod J Hi Low Head E E Locknut F Spring pe 1 Set external controls to ensure that the main burner is off Remove the side access panel Connect a pressure gauge to the burner pressure test point on the multifunctional control 2 Set external controls so as to turn on the main burner and
27. raw cable through entry grommet 5 Remove the fan and motor assembly complete by removing the four hexagon headed bolts that secure the fan to the rear panel 6 Reassemble in reverse order 7 5 2 Euro C Models 1 Inspect the fan blades to see that they are not damaged and that there is no build up of excessive deposits that could give rise to an imbalance Should it be necessary to remove the assembly for cleaning proceed as follows 2 Slacken the cable gland on the heater casing through which the fan electrical cable passes 3 Open the controls section access door and disconnect the fan leads from the electrical terminals 4 Withdraw cable through entry grommet 5 Remove the complete fan assembly by removing the nuts securing the fan to the rear panel 7 6 Replacement of Faulty Components 7 6 1 Multifunctional Control 1 Remove the burner assembly as previously described in Section 7 2 2 Release the flanged elbows at the inlet and outlet of the multifunctional control by removing the M5 screws and remove the multifunctional control 3 Reconnect the new valve in the reverse order to that above ensuring that the valve is correctly orientated Renew the sealing gaskets 7 6 2 Burner Bars 1 Remove the burner assembly and dismantle it as previously described in Sections 7 2 2 Exchange those burner bars as required and reassemble components in reverse order 3 Re commission the appliance as described in Section
28. ro 105 120 and 150 units which are Cat I2H The heaters are designed to be suspended from suitable roof points or alternatively to be mounted on purpose designed brackets and are intended primarily for heating commercial or industrial premises They may be used where the atmosphere inside the premises could be contaminated e g Dust oil mist etc but the heaters are not airtight and therefore may not be used in areas classified as hazardous as defined in BS 5345 Part 2 or areas subjected to significant negative pressures due to extract systems Euro F heaters have an axial fan assembly fitted at the rear to circulate the air being heated through the clam shell heat exchanger A centrifugal fan variation is presented in the Euro C range for use with ducted systems and the Euro D range in having no fan fitted is for ducted systems or air handling units where the air moving fan is by others Heaters are fitted as standard with atmospheric bar burners a fully automatic control for ignition flame sensing gas supply control and safety functions an internal exhaust fan main air fan fan thermostat and limit thermostat Options include High Low or modulating burner controls inlet duct connection fan silencer outlet duct connection 45 head 90 outlet bend nozzle outlet and vertical horizontal outlet louvre assembly Euro 15 to 90 units are also available in E variants with a lower heat input which are higher efficiency units whils
29. t b Top flue connections disconnect the flue system and remove the flue connection from the top panel disengaging it from the exhaust fan outlet 2 Disconnect the fan electrical connections from the terminal block 3 Remove the two facing screws securing the exhaust fan mounting plate move plate slightly to the rear of the unit and pull forward to disengage from rear location 4 Fit replacement exhaust fan and reassemble in reverse order 7 6 6 2 Euro 75 90 1 a Side flue connections disconnect the flue remove the side access panel Remove the fixings of the flue outlet socket and then remove the upper panel b Top flue connections Remove the lower and upper side access panels Disconnect the exhaust fan wiring and remove the fan motor and impeller by removing the three screws securing this assembly to the inside of the exhaust fan enclosure 2 Fit replacement exhaust fan and reassemble in reverse order 7 6 7 Control Box 1 Unplug the electrical connections remove the four retaining screws and remove the control box 2 Fit replacement in reverse order 7 6 8 Air Pressure Switch 1 Remove pressure switch cover and disconnect electrical connections 2 Pull off the sensing tube from the air pressure switch 3 Remove the screws fixing the air pressure switch and remove switch 4 Fit replacement in reverse order refitting the sensing tube to the negative tapping on the pressure switch 7 6 9 Fan and Mo
30. t the Euro 105 120 and 150 units are available only as E variants Gas Safety Installation amp Use Regulations 1994 It is law that all gas appliances are installed adjusted and if necessary converted by qualified persons in accordance with the above regulations Failure to install appliances correctly can lead to prosecution It is in your own interests and that of safety to ensure that the law is complied with e g Corgi Registered 2 Technical Data c E B 175 120 D Euro 15 30 Flue Outlet F _ F Version Shown 113 Combustion b m O O Air Inlet F Flue Outlet F IN k A I 175 h Front View Side View Plan View for ET Top Flue Outlets G 1 Euro 45 60 B C Version Shown E D 175 1120 Flue Outlet F F Combustion val J 113 e Air Inlet F LIT TT Flue Outlet F2 A H 168 Side View Plan View for J Top Flue Outlets Front View E 184 140 Flue 101 Outlet F Combustio Air Inlet F R Combustion N Air Inlet F 324 75 F Version
31. t flexible coupling of noncombustible material Before fitting coupling it must be ensured that a maximum clearance of 13mm 1 2 will be maintained between the ends of the ducting and the heater spigots If required sound attenuators may be fitted in inlet and outlet ducts to reduce airborne fan noise Materials used in outlet sound attenuators must be capable of withstanding 100 C air temperature without any deterioration 5 3 Room Thermostat Siting The room thermostat should be fitted at a point which will be generally representative of the heated area as far as temperature is concerned Draughty areas areas subjected to direct heat e g from the sun and areas where the air movement is relatively stagnant e g in recesses are all positions to be avoided for siting the thermostat The thermostat should be mounted about 1 5m from the floor Any room thermostat frost thermostat time clock etc must be suitable for switching 230V 5A and must be of the snap action type to minimise contact bounce For electrical connections of external controls see the accompanying wiring diagram 6 Commissioning amp Testing 6 1 Electrical Installation Checks to ensure electrical safety must be carried out by a qualified person 6 2 Gas Installation The whole of the gas installation including the meter should be inspected and tested for soundness and purged in accordance with the recommendations of IM 16 1988 6 3 Air Distribution Syst
32. tate the complete electrical isolation of the air heater s and the supply should serve only the air heater s It must have a contact separation of at least 3mm in all poles The method of connection should be provided adjacent to the air heater s in a readily accessible position See the accompanying wiring diagram for the heater electrical connections Euromatic units can also be supplied for 400V 3N 50Hz 4 Installation of Air Heater s 4 1 General Before installation check that the local distribution conditions nature of gas and pressure and adjustment of the appliance are compatible The air heater must be installed in accordance with the rules in force and the relevant requirements of any fire regulations or insurance company s requirements appertaining to the area in which the heater is located particularly where special risks are involved such as areas where petrol vehicles are housed where cellulose spraying is carried out in wood working departments etc Whichever method of mounting the air heater is used the following minimum clearances for installation and servicing must be observed RHS Clearance looking at front of heater 0 5m LHS Clearance looking at front of heater 1 00m Top of the heater to ceiling 0 6m Rear of heater to nearest wall 0 6m Depending on flue system used For multi air heater installations the following minimum distances between units must be observed Between units side to side 3 0m
33. te the position of the flue terminal cut a hole in the roof to suit 2 Fit the flashing and the the flue terminal so that the lower edge of the outer case is over the top of the flashing Weather with silicon sealant or similar 3 Extend the concentric flue to the heater using straight lengths fitting an adjustable length prior to the connector to facilitate flue disconnection for servicing Fit connector to the heater inlet outlet spigots ensuring that the connector spigot that is central to the concentric flue fits into the flue outlet socket Extend the adjustable length to make the final connection Do not exceed the maximum extended length so as to maintain joint integrity 4 Ensure that internal silicon sealing rings are in place and that all tubes are pushed fully home Secure concentric lengths with the locking band provided 4 4 Gas Connection To facilitate removal of the burner tray for servicing purposes a servicing valve and downstream union must be fitted at the Euromatic Flue Combustion Air Duct Options Fig 1a Horizontal Side Outlet Connector Terminal Length s INI Adjustable Length Plan View Fig 1c Vertical Top Outlet Terminal Flashing p Length s Connector _ _ Adjustable Length Front View inlet to the air heater The gas supply to the air heater must be completed in solid pipework and be adequately supporte
34. tor Assembly Note On 3ph heaters ensure that the fan direction of rotation corresponds with the direction of rotation arrow on the fan guard or case If necessary reverse the direction of rotation by interchanging any two of the motor live leads at the terminal strip in the electrical panel 7 6 9 1 Euro F Models 1 Remove the complete axial fan assembly as previously described in Section 7 5 1 2 Refit axial fan assembly to the heater in reverse order 7 6 9 2 Euro C Models 1 Remove the complete centrifugal fan assembly as previously described in Section 7 5 2 2 Fit the new centrifugal fan assembly 8 Connections to External Controls lt LU Z LIVE EARTH NEUTRAL LIVE EARTH lt E 2 14 9 Fault Finding Fault Cause Internal exhaust fan does not Electrical 1 run 2 3 4 5 6 Internal exhaust fan runs but Electrical 1 ignition sequence does not start 2 Internal exhaust fan runs Electrical 1 ignition spark is observed but burners do not light 2 3 Gas 1 Burners light but go out almost Electrical 1 immediately Burners light but go out after Electrical 1 2 3 minutes main fan does 2 not run Main fan runs continuously Electrical 1 2 Main fan fails to run Electrical 10 Short List of Parts Check that there is an electrical supply to the unit and that external control circuit is made Unit at lock
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