ARISTON MICROSYSTEM 28RFFI GCNo.41-116-07
Contents
1. 2 6 O N O r CD no CN CN102 CN101 CN100 CN200 CN102 12345678 1 1123456 1234 123 assa 5 282229 56 11 A2 P2 A1 A01 02 AO3 04 05 09 10 A12 13 SE011A B063 19 FUSE 2A 90V 1 K BoC V LOV S vt 2 MIN OFF MAX MIN 954410 oo Lo Jon jo SF008A 20 063 4 SHORT SPARE PARTS LIST microSYSTEM 21 28 RFFI 71 11 70 69 68 ps 106 i 105 25 26 27 28 29 30 31 32 33 34 35 36 37 38 3938 37 38 4041 42 43 4 G ARISTON SYSTEM 21 28 2 ES002A 063 microSYSTEM 21 28 RFFI 22 C Deo Eo 998616 2 Expansion vessel 998616 5 164282 Gasket 3 8 es 5321 O 13 164225 Gasket3 4 573520 16 Thermostat frost 570760 jFowgou 998612 92. 0 10 200 30 40 50 60 70 800 90 1000 1100 1200 1300 0 l h 2 9 FLUE CONNECTIONS 2 5 60 100 mm FLuE SvsrEM The provision for satisfactory flue termination must be made in accordance with BS 5440 1 The appliance must be installed so that the flue terminal is exposed to outside air The terminal must not discharge into another room or space such as an outhouse or lean to It is important that the position of the terminal allows a free passage of air across it at all times The terminal should be located with due regard for the damage or discolouration that might occur on buildings in the vicinity In cold or humid weather water vapour may condense on leaving the flue terminal The effect of such pluming must be considered If the terminal is less than 2 metres above a balcony above ground or above a flat roof to which people have access then a suitable terminal guard must be fitted When ordering a terminal guard quote the appliance model number A suitable terminal guard is available from TOWER FLUE COMPONENTS Morley Road Tonbridge Kent TN9 1RA The minimum acceptable spacing from the terminal to obstructions and ventilation openings are specified in 2 5 TERMINAL POSITION mm A Directly below an openable window or other opening 300 B Below gutters soil pipes or drain pipes 75 C Below
3. Fia 1 27 1 4 3 Removing the gas valve Important Before removing the gas valve ensure the gas supply is turned off 1 Disconnect all the cables from the solenoid and modureg 2 Remove the spark generator See previous section 3 Release the top nut U Fic 1 28 4 Remove the screws V from the bottom of the gas valve pipe Fic 1 29 5 Remove the gas valve Fic 1 30 F w U 1 28 am ma _ w A FiG 1 29 Am p 4 1 30 1 5 ACCESS TO THE WATER CIRCUIT Important Before any component is removed the boiler must be drained of all water 1 5 1 Removing the pump pressure switch 1 Remove the cable of the pump pressure switch W Fig 1 31 2 Unscrew the pump pressure switch by using a spanner on the nut X FiG 1 32 3 Remove the pump pressure switch Fic 1 31 Fic 1 32 1 5 2 Removing the safely valve 1 Loosen nut Y Fic 1 33 2 Disconnect the discharge pipe work from below the boiler 3 Unscrew and remove the valve Fic 1 33
4. 6 719912 CN100 1121314151617 CN104 11 Overheat Thermostat A12 Spark Generator Gas Valve Supply A13 Detection Electrode Colours Wh White BI Blue Gry Grey Brn Brown Blk Black Rd Red Grn Yll Yellow Green 2 12 13 2 13 954410 954082 FUSE 2 olm O2 9 MIN OFF MAX MIN oo o Nj 2 12 GAS AND WATER CIRCUITS Fic 2 14 1 Fan y 2 Main heat exchanger 3 Overheat thermostat Jl 47 4 Burner FE 5 lgnition electrodes 1 Ly 16 6 Detection electrode 2 7 Regulation thermostat 4 10 Pump pressure switch 4 hn um 11 Safety valve 3 bar 12 Boiler drain valve 5 y alf 13 Automatic by pass 6 Z 14 Pressure gauge 15 Circulation pump wi
5. E E k 1 1 47 13 1 5 6 Removing the overheat thermostat 1 Disconnect the overheat connections K1 Fic 1 48 2 Then remove the thermostat from releasing the securing clip Fia 1 49 thermostat electrical its mounting by Fic 1 48 Fic 1 49 1 5 7 Removing the frost thermostat 1 Disconnect the frost thermostat electrical connection L1 1 50 2 Then remove the thermostat from releasing the securing clip Fic 1 51 Fic 1 50 its mounting by Fic 1 51 1 5 8 Removing the regulation thermostat 1 2 Remove the regulation thermostat sensor from its mounting by releasing the securing clip M1 Fic 1 52 Separate the facia panel from the rear of the control panel see section 1 6 2 Remove the electrical connections regulation thermostat 1 53 N1 from the Pull the regulation knob from the spindle of the thermostat Remove the thermostat from the control panel facia by unscrewing the mounting screws Fic 1 52 E Fic 1 53 1 6 ACCESS TO THE CONTROL SYSTEM Important Isolate the electrical supply to the boiler before accessing the control p
6. 1 5 3 Removing the automatic air vent 1 Unscrew valve top 7 Fic 1 34 2 Remove valve complete with float Fia 1 35 gt W Fic 1 34 gt Fic 1 35 11 1 5 4 Removing the pump Remove the U clips A1 and B1 Fic 1 36 Remove the retaining clip C1 Fic 1 37 Release the nut D1 Fic 1 38 Remove the pipe E1 Fic 1 39 Remove the screw F1 Fic 1 40 Remove the pump Fia 1 41 S n N 1 5 5 Removing the pressure gauge 1 Remove the U clip G1 and remove the pressure gauge coupling Fic 1 42 2 Push the pressure gauge through the control panel from the rear Fic 1 43 Fic 1 42 Fic 1 43 1 5 6 Removing the expansion vessel 1 Release nuts H1 and remove the gas pipe Fic 1 44 2 Release nut 11 Fic 1 45 3 Remove lock nut J1 Fic 1 46 4 Remove the expansion vessel Fia 1 47 B 1 D Fic 1 44 11 1 45 J1 Fic 1 46 n
7. TABLE A GAS REQUIREMENTS NATURAL GAS G20 BUTANE GAS G30 PROPANE GAS G31 Gas rate max 2 4 m h 84 7 ft3 h 1 78 m3 h 62 8 ft8 h 1 76 m3 h 62 1 ft8 h Gas rate min 1 05 m3 h 37 0ft h 0 78 27 5ft h 0 77 m3 h 27 2 8 Inlet pressure 20mbar 7 8 in w g 28 mbar 10 9 in w g 37 mbar 14 4 in wg Burner pressure 8 5 mbar 3 3inw g 27 5 mbar 10 7in w g 37 4 mbar 14 6in w g Burner pressure mi 1 7 mbar 0 7in w g 6 2 mbar 2 4 in w g 8 0 mbar 3 1in w g Burner jets 12 x 1 30 12 X 0 77 12 x 0 77 Gas rate 3 15 m3 h 111 1 ft h 2 34 m3 h 82 6 fts h 2 31m h 81 5 ft h Gas rate i 1 26 m3 h 44 5 8 0 94 m3 h 33 2 ft h 0 93 m h 32 8 ft8 h Inlet pressure 20 mbar 7 8 inw g 28 mbar 10 9 in w g 37 mbar 14 4 in w g Burner pressure 11 4 3inw g 27 7 mbar 10 8 in w g 35 5 mbar 13 8 in w g Burner pressure mi 1 6 mbar 0 6 in w g 4 6 mbar 1 8inw g 6 0 mbar 2 3 wg iL LL tc N gt wn tc gt wn Burner jets 14 x 1 30 14 x 0 77 14 x 0 77 1 4 2 Removing the spark generator 1 Disconnect ignition leads S by pulling upward 1 26 2 Remove the screw T Fia 1 27 3 Remove the spark generator by pulling forward from the gas valve 1 26
8. 2 CHECK VENTURI AND TUBES 3 CHECK THE FAN EFFICIENCY 4 REPLACE FAN 1 CHECK REPLACE IGNITION DOES ELECTRODES 2 CHECK THE CABLES BERGE 5 CHECK SPARK GENERATOR 5 CHECK REPLACE P C B CBM2 4 CHECK IGNITION ELECTRODE CABLES 1 CHECK POWER SUPPLY TO IS THE BURNER 2 CHECK OPERATION OF THE 4 CHECK REPLACE CBM2 ALIGHT INIO CHECK OP _ 4 CHECK REPLACE P C B CBM2 3 REPLACE THE GAS VALVE HAS THE VES BOILER SAFETY PRESS THE RESET SHUTDOWN BEEN gt 1 ACTIVATED i 1 CHECK IF THE FLAME NO STRIKES THE DETECTION ELECTRODE 4 BOILER NO 2 CHECK THE SOFT LIGHT 4 CHECK REPLACE WORKING GAS PRESSURE P C B CBM2 3 CHECK REPLACE DETECTION ELECTRODE NORMAL OPERATION IS FAULT LIST POSSIBLE CAUSES STILL NolsEY OPERATION MAIN HEAT EXCHANGER FAULTY OR BLOCKED A PROBLEM YES WITH LIME SCALE DEPOSITS LOW HEATING SYSTEM WATER PRESSURE CHECK GAS PRESSURES CHECK HEATING THERMOSTAT CHECK FAN CHECK PUMP 2 DECREASE INCREASE OF HEATING CIRCUIT CHECK FOR LEAKS ON THE HEATING CIRCUIT PRESSURE FAULTY FILLING LOOP o o FAULTY EXPANSION VESSEL 3 REPEATED SHUTDOWNS FAULTY DETECTION ELECTRODES CHECK GAS PRESSURES CHECK FLAME DETECTION ELECTRICAL CIRCUIT 4
9. REPEATED OPERATION OF SAFETY THERMOSTAT FAULTY HEATING THERMOSTAT FAULTY OVERHEAT THERMOSTAT PRESENCE OF AIR IN THE HEATING CIRCUIT CHECK BURNER PRESSURES CHECK EXCHANGER FLUEWAY 5 INSUFFICIENT RADIATOR TEMPERATURE CHECK HEATING THERMOSTAT CHECK BY PASS CHECK GAS PRESSURE 18 FC002Ac o 3 ELECTRICAL DIAGRAMS LEGEND A On Off Switch B On Off L E D C Heating Switch D Heating L E D E Reset Button F Ignition Failure Lockout L E D A01 Pump Pressure Switch 02 Frost Thermostat A03 Modulator A04 Circulation Pump A05 Regulation Thermostat A06 External Control System A07 Time Clock Connector 08 External Room Thermostat A09 Air Pressure Switch A10 Fan A11 Overheat Thermostat A12 Spark Generator Gas Valve Supply A13 Detection Electrode Colours Wh White BI Blue Gry Grey Brown Black Rd Red Grn YII Yellow Green
10. e SYSTEM Instructions Type C Boilers G C N 4116 06 41 116 07 LEAVE THESE INSTRUCTIONS WITH THE END USER benchmark The code of practice for the installation commissioning amp servicing of central heating systems ARISTON Country of destination GB TABLE OF CONTENTS 1 2 9 GENERAL INFORMATION GENERAL INSTRUCTIONS OVERALL VIEW INSTALLATION REFERENCE STANDARDS SITING THE APPLIANCE OVERALL DIMENSIONS CLEARANCES MOUNTING THE APPLIANCE ELECTRICAL CONNECTION GAS CONNECTION WATER CONNECTIONS FLUE CONNECTION 2 10 Room THERMOSTAT CONNECTION 2 11 ELECTRICAL DIAGRAMS 2 12 GAS AND WATER CIRCUITS 3 3 1 3 2 D H W STORAGE CYLINDER 2 PORT AND 3 PORT VALVE INSTALLATIONS Domestic WATER PRIORITY KIT COMMISSIONING INITIAL PREPARATION CONTROL PANEL REMOVING THE FRONT PANEL INITIAL START UP OPERATIONAL ADJUSTMENTS COMBUSTION ANALYSIS FUME DISCHARGE MONITORING DRAINING THE SYSTEM GAS ADJUSTMENTS Gas ADJUSTMENT TABLE CHANGING THE TYPE OF GAS MAINTENANCE TECHNICAL INFORMATION 1 1 1 GENERAL INFORMATION GENERAL INSTRUCTIONS This manual is an integral and essential part of the product It should be kept with the appliance so that it can be consulted by the user and our authorised personnel Please carefully read the instructions and notices about the unit contained in this manual as SYSTEM they provide important information regarding the safe instal
11. When the installation and filling are completed turn on the central heating system section 4 4 and run it until the temperature has reached the boiler operating temperature The system must then be immediately flushed through The flushing procedure must be in line with BS 7593 1992 code of practice for treatment of water in domestic hot water central heating systems During this operation we highly recommend the use of a central heating flushing detergent Fernox Superfloc or equivalent whose function is to dissolve any foreign matter that may be in the system Substances different from these could create serious problems to the pump or other components The use of an inhibitor in the system such as Fernox MB 1 or equivalent is strongly recommended to prevent corrosion s udge damaging the boiler and system Failure to carry out this procedure may invalidate the appliance warranty LEGEND G H A On Off button B On Off LE D green frost protection active 4 Central Heating button AT Y D Cental Heating active LE D green B es S E E Ignition failure lockout and or overheat reset button C EA dee F Ignition failure lockout and or overheat L E D red D lt G Central heating temperature adjustment E H Energy Saving System ESS Knock out for time clock F J Heating system pressure gauge 4 1 4 3 REMOVING THE FRONT PANEL In order to access the inside of the boiler
12. it is necessary to unscrew the fastening screws A of the control panel located on the lower part of the panel itself e The control panel moves downward and when pulled forward rotates on two lateral hinges The panel stays in a semi horizontal position which allows access to the inner parts of the boiler In order to increase the manoeuvring space it is possible to raise the control panel and rotate it to a fully horizontal position To dismantle the front casing panel it is necessary to 1 Remove the two screws B 2 Move the front casing panel up and lift forward THE CHECKS TO BE RUN BEFORE INITIAL START UP ARE AS FOLLOWS 1 Make sure that the screw on the automatic air valve has been loosened when the system is full If the water pressure in the system is below 1 5 bar bring it up to the appropriate level Ensure that the gas cock is closed Make sure that the electrical connection has been made properly and that the earth wire is connected to an efficient earthing system Supply power to the boiler by pushing the On Off button A see FiG 4 1 the L E D B will illuminate Then push the button C in for central heating the L E D D will illuminate This will start the circulation pump After 7 seconds the boiler will signal a shutdown
13. Removing the fan SERVICING AND REMOVAL OF THE GAS VALVE Setting the gas pressures Removing the spark generator Removing the gas valve ACCESS TO THE WATER CIRCUIT Removing the pump pressure switch Removing the safety valve Removing the automatic air vent Removing the pump Removing the pressure gauge Removing the expansion vessel Removing the overheat thermostat Removing the frost thermostat Removing the regulation thermostat ACCESS TO THE CONTROL SYSTEM Checking the fuses Removing the P C B s FAULT FINDING FAULT FINDING GUIDE FLOW CHARTS ELECTRICAL DIAGRAMS SHORT SPARE PARTS LIST 1 SERVICING INSTRUCTIONS To ensure efficient safe operation it is recommended that the boiler is serviced annually by a competent person Before starting any servicing work ensure both the gas and electrical supplies to the boiler are isolated and the boiler is cool Before and after servicing a combustion analysis should be made via the flue sampling point please refer to the Installation Manual for further details After servicing preliminary electrical system checks must be carried out to ensure electrical safety i e polarity earth continuity resistance to earth and short circuit 1 1 REPLACEMENT OF PARTS The life of individual components varies and they will need servicing or replacing as and when faults develop The fault finding sequence chart in chapter 2 will help to locate which
14. and minimum thermal capacity values for the boiler see table in section 5 Replace the gas rating plate 3 4 Adjust the maximum thermal power setting 5 Adjust the soft light feature open the cover of the regulation screw on the gas valve see 5 1 Rotate clockwise from min to max as installation requirements 5 1 VG002Ab 21 6 MAINTENANCE It is recommended that the following inspections be carried out on the boiler at least once a year 1 2 3 4 5 6 10 11 12 13 Check the seals for the water connections replace any faulty seals Check the gas seals replace any faulty gas seals Visual check of the entire unit Visual check of the combustion process or analysis of combustion by products see section 4 5 and cleaning of the burner if needed If called for by point 3 dismantling and cleaning of the combustion chamber If called for by point 4 dismantling and cleaning of the burner jets Visual check of the primary heat exchanger check for overheating in the blade assembly clean the exhaust fan if needed Adjustment of the flow rate of the gas flow rate for lighting partial load and full load Check of the heating safety systems Safety device for maximum temperature overheat thermostat Safety device for maximum pressure safety valve Check of the gas safety systems Safety device for lack of gas or flame ioni
15. channel programmer Type Danfoss FP715 Type Honeywell ST6400C ROOM THERMOSTAT LOAD LIVE CYLINDER THERMOSTAT oy EST SATISFIE CALLING HIUSvv r N L E 1 2 3 4 5 6 7 TERMINAL BLOCK 3 PORT ZONE VALVE e ORANGE e GREY PROGRAMMER WHITE H GREEN YELLOW OFF i BLUE CH i gt ON OFF ADD THIS WIRE IF PROGRAMMER Cm a ECCO T HAS A HEATING ONLY POSITION DON Note When using a 3 port valve installation in conjunction with an unvented cylinder it will be necessary to use a 2 port valve on the cylinder flow connection in addition to the 3 port valve to satisfy Building Regulations Coil D lt Contract STI 125 Indirect Comfort STI 125 Indirect Contract STI 150 Indirect Comfort STI 150 Indirect Contract STI 210 indirect Comfort STI 210 Indirect Contract STI 300 Indirect SB 125 Indirect A SB 150 Indirect SB 200 Indirect 0 75 0 93 0 93 0 93 0 93 0 93 16 3 2 Domestic WATER PRIORITY KIT Boiler microSYSTEM microSYSTEM The microSYSTEM is able to be connected to a specially designed 21 RFFI 28 RFFI kit for the management of D H W producti
16. clock it is necessary to 1 Open the control panel as indicated in section 4 3 2 Remove screws A and remove the inspection cover from the reverse of the control panel 3 For the room thermostat connect the thermostat switching wires to the position 5 and 6 and remove the wire link for three wire thermostats connect the neutral to terminal N 4 For the time clock connect the clock switching wires to the positions 3 and 4 and connect the clock motor electrical supply to the terminals marked L and N Note A frost thermostat is built in to the appliance For connection to control systems with zone valves for hot water cylinders see section 3 z IRE 2 T U U U FUSE J E LN 12 34 5 6 N N N S NZ N 12 2 11 ELECTRICAL DIAGRAM LEGEND A On Off Switch B On Off L E D C Heating Switch D Heating L E D E Reset Button F Ignition Failure Lockout L E D A01 Pump Pressure Switch A02 Frost Thermostat A03 Modulator A04 Circulation Pump A05 Regulation Thermostat 06 External Control System A07 Time Clock Connector 08 External Room Thermostat 09 Air Pressure Switch 10 Fan
17. component is the cause of any malfunction and instructions for removal inspection and replacement of the individual parts are given in the following pages 1 2 To GAIN GENERAL ACCESS All testing and maintenance operations on the boiler require the control panel to be lowered This will also require the removal of the casing 1 2 1 Removing the front panel 1 Loosen the fastening screws A of the control panel located on the lower part of the panel itself Fic 1 1 Fic 1 1 A Fic 1 2 k pon FiG 1 3 2 The control panel moves downward and when pulled forward rotates on two lateral hinges the panel stays in a semi horizontal position which allows access to the inner parts of the boiler Fic 1 2 3 In order to increase the manouvering space it is possible to raise the control panel and rotate it to a fully horizontal position Fic 1 3 4 Remove the screws B from the front panel bottom lip Fic 1 4 5 Lift the front panel up and forward from the raised screws at the the top of the casing Fic 1 5 FiG 1 5 1 2 2 Removing the sealed chamber front cover 1 Remove the screws 1 6 2 Lift the sealed chamber cover from locating pins 1 7 y ie te e 4 2 H qan SR te 1 6 i 3 Fic 1 7 1 2 3 Removi
18. discharge should terminate facing downward on the exterior of the building in a position where discharging possibly boiling water amp steam will not create danger or nuisance but in an easily visible position and not cause damage to electrical components and wiring The discharge must not be over an entrance or a window or any other type of public access AIR RELEASE POINTS These must be fitted at all high points where air naturally collects and must be sited to facilitate complete filling of the system The appliance has an integral sealed expansion vessel to accommodate the increase of water volume when the system is heated It can accept up to 6 litre 1 3 gal of expansion water If the heating circuit has an unusually high water content calculate the total expansion and add an additional sealed expansion vessel with adequate capacity This should be located on the return pipe work as close as possible to the pump inlet MAINS WATER FEED CENTRAL HEATING There must be no direct connection to the mains water supply even through a non return valve without the approval of the Local Water Authority FILLING A temporary method for initially filling the system and replacing lost water during servicing and initial filling in accordance with current Water Regulations is provided as an integral part of the connection kit see Fic 2 4 The flexible hose must be removed once the system has been filled RESIDUAL HEAD OF THE BOILER
19. off point 23 Air pressure switch 24 Combustion analysis points 16 17 1819 2 2 1 2 2 INSTALLATION REFERENCE STANDARDS SITING THE APPLIANCE The technical information and instructions provided herein below are intended for the installer so that the unit may be installed correctly and safely The installation and initial start up of the boiler must be by a CORGI Registered Installer in compliance with the installation standards currently in effect as well as with any and all local health and safety standards i e CORGI This appliance must be installed by a competent installer in accordance with current Gas Safety installation amp use Regulations The installation of this appliance must be in accordance with the relevant requirements of the current Gas Safety installation amp use Regulations the Local Building Regulations the current Wiring Regulations the byelaws of the local water authority and in Scotland in accordance with the Building Standards Scotland Regulation and Health and Safety document No 635 Electricity at work regulations 1989 Installation should also comply with the following British Standard Codes of Practice BS 7593 1992 Treatment of water in domestic hot water central heating systems BS 5546 1990 Installation of hot water supplies for domestic purposes BS 5440 1 1990 Flues BS 5440 2 1989 Air supply BS 5449 1990 Forced circulation hot
20. the boiler H Automatic By pass pipe CENTRAL HEATING Detailed recommendations are given in BS 6798 1987 and BS 5449 1 1990 the following notes are given for general guidance 7 PIPE Work Copper tubing to BS EN 1057 1996 is recommended for water pipes Jointing should be either with capillary soldered or compression fittings Where possible pipes should have a gradient to ensure air is carried naturally to air release points and water flows naturally to drain taps The appliance has a built in automatic air release valve however it should be ensured as far as possible that the appliance heat exchanger is not a natural collecting point for air Except where providing useful heat pipes should be insulated to prevent heat loss and avoid freezing Particular attention should be paid to pipes passing through ventilated spaces in roofs and under floors BY PASS The appliance includes an automatic by pass valve which protects the main heat exchanger in case of reduced or interrupted water circulation through the heating system due to the closing of thermostatic valves or radiator valves within the system SYSTEM DESIGN This boiler is suitable only for sealed systems Drain Cocks These must be located in accessible positions to permit the draining of the whole system and should be fitted at all low points The taps must be at least 15mm nominal size and manufactured in accordance with BS 2870 1980 SAFETY VALVE DISCHARGE The
21. water systems BS 6789 1987 Installation of gas fired hot water boilers of rated input not exceeding 60kW BS 6891 1989 Installation of low pressure gas pipe up to 28mm BS 7671 1992 IEE wiring regulations BS 4814 1990 Specification for expansion vessels BS 5482 1994 Installation of LPG The appliance may be installed in any room or indoor area although particular attention is drawn to the requirements of the current 1 Wiring Regulations and in Scotland the electrical provisions of the Building Regulations applicable in Scotland with respect to the installation of the appliance in a room containing a bath or shower Where a room sealed appliance is installed in a room containing a bath or shower the appliance and any electrical switch or appliance control utilising mains electricity should be situated so that it cannot be touched by a person using the bath or shower The location must permit adequate space for servicing and air circulation around the appliance as indicated in paragraph 2 4 The location must permit the provision of an adequate flue and termination For unusual locations special procedures may be necessary BS 6798 1987 gives detailed guidance on this aspect A compartment used to enclose the appliance must be designed specifically for this purpose No specific ventilation requirements are needed for the installation within a cupboard This appliance is not suitable for outdoor installation The type C appliance
22. 041 mm Extension Piping not insulated Piping insulated 28 RFFI Exhaust Air g 41 restrictor NO restrictor 41 restrictor NO restrictor C12 xy 62m C32 xy 38 62 8m 11 19 31m C42 xy 62m In calculating the lengths of the pipes the TwIN PIPE maximum length L must also take into SYSTEMS consideration the values for the exhaust air intake end terminals as well as 90 elbows for coaxial systems The C52 types must comply with the following requirements 1 The exhaust air intake pipes must have the same diameter of 80 mm 2 f elbows are to be inserted into the air intake and or exhaust system the calculation of the overall length must take into consideration the values for each elbow see the FLUE PIPE ACCESSORIES MANUAL 3 The exhaust pipe must protrude by at least 0 5 m above the top of the roof in the event that it is located on the opposite side of the building to the side with the air intake this condition is not obligatory when the air intake and exhaust are located on the same side of the building Sum of the total length of exhaust air intake piping L JI N 11 2 10 Room THERMOSTAT CONNECTION To connect a room thermostat and or time
23. 164229 Safety valve 1 4 3 bar 998447 oos Hd O s Pumppressureswitch j 998627 25 jSpakGeneraor 999542 26 jGaset 574279 27 Gasvave 1 999475 29 jAwdoarvnt 998809 30 Reungoup j 999476 99842 33AB 998839 33CD 999091 45 Thermostat reguiation 999577 48 jP CB CBM2ATFFOX j 999499 49 Pressuregauge j 999245 55 jGasket 1 998517 60AB jAirpresueswitch 994844 60CD 03818 Airpressureswitch 571651 73 i Gasket _ J 99782 75 Oring 265x102 998943 76AB Fan 998489 999894 78AB_ Mainexchanger 998620 78CD jManexchanger 998893 Thermostat overhea 999538 83A 12 998618 838 jBumeri2ramp LPO 998669 83C jBumeri4ramp natwalga 998887 83D jBumeridramp LPG 998939 87AC jBumerjet natmalgas 1 30 998433 87BD JjBumerjpt LPGO77 j 9944 93 99951 95 Fastfuse2zAT 950000 97 Electrode ignition RH 998623 98 Electrode ignition L H 998622 99 Detection electrode 998624 351 jOrng AAV 1 998644 352 JjAuoarvet 9963 353 jGaskett pmphead 998738 354AB jPump
24. 2 12 Warning this appliance must be earthed External wiring to the appliance must be carried out by a competent person be in accordance with the current I E E Regulations and applicable local regulations The microSYSTEM range of boilers are supplied for connection to a 230 V 50 Hz supply The supply must be fused at 3 A The method of connection to the electricity supply must facilitate complete electrical isolation of the appliance by the use of a fused double pole isolator having a contact separation of at least 3 mm in all poles or alternatively by means of a 3 A fused three pin plug and unswitched shuttered socket outlet both complying with BS 1363 The point of connection to the Electricity supply must be readily accessible and adjacent to the appliance unless the appliance is installed in a bathroom when this must be sited outside the bathroom see section 2 2 The local gas region contractor connects the gas meter to the service pipe If the gas supply for the boiler serves other appliances ensure that an adequate supply is available both to the boiler and the other appliances when they are in use at the same time Pipe work must be of an adequate size Pipes of a smaller size than the boiler inlet connection should not be used VIEW OF THE BOILER CONNECTIONS LEGEND A Central Heating Flow C Gas Inlet E Central Heating Return F Safety Valve G Pump transportation screw remove before igniting
25. TING te IS THE L E D ILLUMINATED NO 1 CHECK THE INTEGRITY Bs DE een 2 CHECK REPLACE THE P C B YES CT1 IS THE TIME CLOCK PROGRAMMER AND OR ROOM THERMOSTAT en CALLING FOR HEATING FROST PROTECTION IS ACTIVATED lt 5jC IS THE FROSTPROTECTION REQUESTED FC002Aa 16 IS THE PUMP RUNNING POWERTO THE PUMP 1 CHECK THE OPERATION OF THE PUMP 2 RELEASE REPLACE THE PUMP 1 CHECK THE PUMP CABLE 2 CHECK REPLACE CT1 3 CHECK THE SYSTEM PRESSURE GAUGE IS AT 1 5 BAR BOILER SHUTDOWN INTERNAL P C B PROTECTION ACTIVATED POWERTO THE FAN YES 4 ES RESET THE BOILER Va 1 CHECK REPLACE AIR 5 9 3 PRESSURE SWITCH AND CABLE CHECK IF THE RESET IS JAMMED CHECK REPLACE DETECTION ELECTRODE 1 CHECK REPLACE FAN NO 3 CONNECTION CABLE CHECK REPLACE P C B CHECK REPLACE AIR PRESSURE SWITCH REPLACE THE FC002Ab B063 N 1 CHECK AIR PRESSURE IS THE CHECK AP gt 0 5 mbar SWITCH CABLE AIR PRESSURE SWITCH NIC AP ON PRESSURE 2 CHECK REPLACE AIR gt PRESSURE SWITCH ACTIVATED TEST POINT ce as P C B AP lt 0 5 mbar 1 CHECK EXHAUST DISCHARGE
26. an and mounting plate Fia 1 25 Fic 1 22 Fia 1 23 1 25 1 4 SERVICING AND REMOVAL OF THE GAS VALVE 1 4 1 Setting the gas pressures Setting the minimum and the maximum power of the boiler 1 Check that the supply pressure to the gas valve is a minimum of 20 mbar for natural gas Turn off the gas supply at the isolation point under the boiler To do this slacken the screw A Fit the pipe of the pressure gauge to the inlet pressure test point of the gas valve B Turn on the gas supply at the isolation point under the boiler and with the boiler running read the inlet working pressure on the gauge When you have completed this operation turn off the gas supply at the isolation point under the boiler remove the pressure gauge and tighten the screw A securely into its housing to seal off the gas Turn on the gas supply at the isolation point under the boiler and test the screw for gas escaping with an approved soap and water solution To check the pressure supplied by the gas valve to the burner with the boiler turned off slacken the screw C Fit the pipe of the pressure gauge to the outlet pressure test point o
27. anel 1 6 1 Checking the fuse 1 Remove the inspection cover on the reverse of the control panel Fic 1 54 2 Remove the fuse mounted on the reverse of the inspection cover Fic 1 55 Fic 1 54 T FUSE 2A VM FUSE J E LN 12 3 DU VE ou Fic 1 55 1 6 2 Removing the P C B s 1 Isolate electricity 2 Remove the screws O1 Fic 1 56 3 Separate the facia panel from the rear of the control panel 4 Unplug all electrical connections from the P C B and remove the screws P1 and remove the PC B Fic 1 57 1 1 n 3 1 y 1 Fic 1 56 1 d 1 1 Fic 157 15 2 2 1 FAULT FINDING FAULT FINDING GUIDE FLOW CHARTS It is possible to detect and correct any defect by using the standard fault finding diagrams described in this chapter PRELIMINARY CHECKS MAKE SURE THAT 1 THERE IS SUFFICIENT WATER IN THE SYSTEM 2 THE GAS IS TURNED ON 3 THE ELECTRICAL SUPPLY IS TURNED ON PRESS THE ON OFF BUTTON ic IS THE SUPPLY L E D ILLUMINATED NO a 1 CHECK THE FUSES YES 2 CHECK THERE IS POWER SUPPLIED TO THE PC B S 3 CHECK REPLACE THE PC B PRESS THE CENTRAL BUTTON HEA
28. due to ignition failure Leave the boiler as it is until all of the air has been bled from the system Loosen the cap on the head of the pump to eliminate any air pockets Repeat the procedure for bleeding the radiators of air Check the system pressure and if it has dropped open the filling loop again to bring the pressure back up to 1 5 bar Make sure that all gate valves are open Turn on the gas cock and check the seals on the connections with an approved soap solution and eliminate any leaks 4 Press the reset button E for the lighting system the spark will light the main burner If the burner does not light the first time repeat the procedure 5 Check the minimum and maximum pressure values for the gas going to the burner adjust it if needed using the values indicated in the table in section 5 See the relative section for burner pressure adjustment within the servicing manual 4 4 INITIAL START UP ev 4 5 COMBUSTION ANALYSIS The flue connector has two apertures readings can be taken for the temperature of the combustion by products and of the combustion air as well as of the concentrations of Oz and etc To access these intakes it is necessary to unscrew the front screw and remove the metal plate with sealing gasket To achieve the best test conditions turn the central heating adjustment knob G to the max position and remove the electrical connection to the heating sensor see secti
29. eaves 200 D Below balconies or car port roof 200 E From vertical drain pipes and soil pipes 75 F From internal or external corners 300 A G Above ground or balcony level 300 H From a surface facing a terminal 600 oe From a terminal facing a terminal 1200 J From an opening in the car port e g door window into dwelling 1200 K Vertically from a terminal in the same wall 1500 L Horizontally from a terminal in the same wall 300 The boiler is designed to be connected to a coaxial flue discharge system In addition it is also possible to use a split twin pipe system by fitting a special adaptor to the flue connector and using the aperture for the air vent intake located on the top part of the combustion chamber To utilise the air intake it is necessary to 1 Remove the bottom of the air intake by cutting it with a suitable knife see Fic 2 7 2 Insert the elbow into the air intake until it reaches the lower end There is no need to use gaskets or sealing compounds CoaxiAL SYSTEMS 10 IMPORTANT For all flue systems a restrictor must always be inserted into the boiler
30. f the gas valve D Disconnect the compensation pipe E either from the gas valve or from the sealed chamber Push the On Off button to ON position green light and push the Heating button to ON position green light Turn on the boiler by setting the external controls Adjust the 10mm nut F on the modureg to set the gas pressure Turn the nut clockwise to increase and anti clockwise to decrease the pressure until the required pressure is achieved see TABLE A page 9 To set the minimum power disconnect the supply cable from the modureg and adjust screw G whilst holding nut F Turn the screw clockwise to increase the pressure and anticlockwise to decrease the pressure until the required pressure is achieved see TABLE A page 9 When you have completed the above operations turn off the external controls re connect the supply terminal to the modureg on the gas valve and replace the cap on the screw of the modureg Setting pressure for soft ignition The soft light pressure is factory set If the ignition is not regular e g not complete burner ignition or ignition noise check the soft light regulator position The soft light pressure will need adjusting as follows Turn off electrical supply referring to diagram 5 open the dust cap of the soft light regulator by unscrewing in clockwise direction the white screw turn the adjustment screw one step in the direction max to increase or
31. had 998961 354 jPumphead 999207 361 E24076 Burnerjet 1 30 full kit 998716 362 E24075 Burnerjet 0 77 full kt LPG 998717 U ee ee ee B063 NOTES B063 23 Manufacturer Commercial subsidiary Merloni TermoSanitari SpA ltaly MTS GB LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone 01494 755600 Fax 01494 459775 Internet http www mtsgb ltd uk E mail info mtsgb Itd uk Technical Service Hot Line 01494 539579 23 99 84 1550 000
32. ial load and full load Check of the heating safety systems safety device for maximum temperature overheat thermostat safety device for maximum pressure safety valve Check of the gas safety systems safety device for lack of gas or flame ionisation detection electrode safety device for gas cock Check of the electrical connection make sure it complies with the instructions in the manual General check of the combustion by products of the discharge ventilation system Check of the general performance of the unit 1 2 OVERALL VIEW 2227068 d bt 2 t ggagaaatiaaooaaa5J 9 P LEGEND 1 Flue connector 2 Air intake for twin pipe flue systems 3 Fan 4 Combustion chamber hood 5 Main heat exchanger 6 Safety thermostat 7 Combustion chamber 8 Combustion chamber insulation panel 9 Detection electrode 10 Ignition electrodes 11 Burner 12 Regulation thermostat 13 Frost thermostat 14 Pump pressure switch 15 Safety valve 3 bar 16 Automatic By pass 17 Gas valve 18 Spark generator 19 Boiler drain valve 20 Circulation pump with automatic air release valve 21 Expansion vessel 22 Air pressure take
33. in the direction min to decrease the soft light pressure after each adjustment of the regulator turn on the electrical supply and recheck burner ignition wait 20 seconds between each cycle to allow the gas valves internal servo system to reset When the required level is achieved close the dust cap Remove the pipe from the pressure gauge and connect screw C to the pressure outlet in order to seal off the gas Carefully check the pressure outlets for gas leaks valve inlet and outlet IMPORTANT Whenever you disassemble and reassemble the gas connections always check for leaks using an approved soap and water solution Regulating the heating power for mbar 30 natural gas G20 25 2 21 o 20 15 2 2 10 o 28 kW amp 5 0 8 10 12 14 16 18 20 22 24 26 28 30 32 kW m OPERATING POWER Regulating the heating power for mbar butane gas G30 12 21 kW 28 kW GAS BURNER PRESSURE o 8 10 12 14 16 18 20 22 24 26 28 30 32 kw OPERATING POWER CG004A Regulating the heating power for P propane gas G31 40 35 5 o 30 21 kW 25 20 2 15 a 28 kW 10 lt o 5 9 10 12 14 16 18 20 22 24 26 28 30 32 OPERATING POWER CG006A
34. is control shuts off the boiler in the case where the primary circuit reaches a temperature in excess of 105 C The red L E D F will illuminate to signal this shutdown status The system can be reset by waiting a few minutes for the primary exchanger to cool down and then by pressing and releasing the E button ANTI FROST DEVICE The boiler is equipped with a device that in the event of the water temperature going below 6 C the burner ignites at the minimum power until the boiler water reaches a temperature of 16 C This device operates only if the boiler is functioning perfectly and the system pressure is sufficient the boiler is powered electrically L E D illuminated the gas is turned on EXHAUST DISCHARGE ANOMALY SHUTDOWN The boiler is fitted with safety devices which in the event of defective discharge of exhaust fumes automatically interrupts the gas supply thereby shutting off the boiler The shutdown of the boiler is temporary and when the discharge state of exhaust fumes has returned to normal the boiler automatically turns back on The heating system must be emptied as follows Turn off the boiler Attach a hose pipe and open the drain valve Empty the system at the lowest points where present When the heating system is unused for an extended period of time it is recommended that you add antifreeze with an ethylene glycol base to the water in the heating lines and radiators if
35. lation use and maintenance of the product For operating instructions please consult the separate User s Manual Read the instructions and recommendations in these Installation Instructions carefully to ensure proper installation use and maintenance of the appliance Keep this manual in a safe place You may need it for your own reference while our Servicing Centre technicians or your installer may need to consult it in the future This is an appliance for the production of central heating C H This appliance must be used only for the purpose for which it is designed The manufacturer declines all liability for damage caused by improper or negligent use No asbestos or other hazardous materials have been used in the fabrication of this product Before connecting the appliance check that the information shown on the data plate and the table in section 7 comply with the electric water and gas mains of the property You will find the data plate on the reverse of the control panel The gas with which this appliance operates is also shown on the label at the bottom of the boiler Do not install this appliance in a damp environment or close to equipment which spray water or other liquids Do not place objects on the appliance Do not allow children or inexperienced persons to use the appliance without supervision If you smell gas in the room do not turn on light switches use the telephone or any other object which migh
36. ng the side panels 1 Remove the four screws D for each side panel 1 8 2 Pull the panel away from the boiler at the base then lift the panel up and remove from the boiler Fic 1 8 1 3 ACCESS THE COMBUSTION CHAMBER 1 3 1 Removing the combustion cover 1 Remove the screws Fic 1 9 2 Lift off the combustion cover E lu m E A 1 9 1 3 2 Removing the burner and jets 1 Remove the screws F from the burner Fic 1 10 2 Remove the burner FiG 1 11 3 Disconnect the electrodes see section 1 3 3 4 Remove the jets using a No 7 socket spanner 5 Replace in reverse order 1 3 3 Removing the electrodes Before carrying out this procedure unscrew and slide the burner forward see previous section 1 Remove rubber gasket Fic 1 12 2 To remove the detection electrode disconnect the cable at its connection point close to the P C B Fic 1 13 3 Remove screw H Fic 1 14 4 Gently slide the electrode downward Fic 1 15 Fic 1 15 To replace repeat the steps in reverse order paying particular attention to the following a Centre the electrode in the positioning hole carefully otherwise the electrode may break b Ensure that the left hand and right hand electrodes are located the correct way
37. nt person carefully check the electrical system in the property as the manufacturer will not be held liable for damage caused by the failure to earth the appliance properly or by anomalies in the supply of power Make sure that the residential electrical system is adequate for the maximum power absorbed by the unit which is indicated on the rating plate In addition check that the section of cabling is appropriate for the power absorbed by the boiler The boiler operates with alternating current as indicated in the technical information table in section 7 where the maximum absorbed power is also indicated Make sure that the connections for the neutral and live wires correspond to the indications in the diagram The appliance electrical connections are situated on the reverse of the control panel under the inspection cover see the servicing manual for further information IMPORTANT In the event that the power supply cord must be changed replace it with one with the same specifications Make the connections to the terminal board located within the control panel as follows The yellow green wire should be connected to the terminal marked with the symbol The blue wire should be connected to the terminal marked N The brown wire should be connected to the terminal 2 7 GAS CONNECTION 2 8 WATER CONNECTIONS Fic 2 4 marked L Note The diagrams for the electrical system are indicated in section
38. on This kit gives priority to production of D H W unlike traditional systems where the boiler power is split between C H and D H W This generally enables a Contract STI 125 Indirect smaller storage cylinder to be chosen as the boiler s full output will be Comfort STI 125 Indirect channelled into the cylinder allowing for a quick heat up Contract STI 150 Indirect The kit ARISTON part number 706329 can be obtained from an ARISTON supplier Comfort STI 150 Indirect The kit consits of Contract STI 210 Indirect 1 Electronic module able to plug into the boiler s P C B Comfort STI 210 Indirect 2 3 way priority valve with actuator for connection to the boiler s flow outlet Contract STI 300 Indirect 3 A limit thermostat 80 C to check the water temperature of the heating flow to the cylinder to be installed within the boiler SB 125 Indirect 4 Pipes and accessories SB 150 Indirect SB 200 Indirect TABLE 3 2 Possible 4 COMMISSIONING MTS GB Limited support the esce initiative Within the information pack you will find a copy of the logbook It is important that this is completed in the presence of your customer they are shown how to use it and it is signed by them Please instruct your customer that they must have their 2 logbook with them whenever they contact a service engineer or us 4 1 INITIAL PREPARATION Preliminary electrical system checks to ensure electrical safet
39. on 6 This will allow the appliance to operate at the maximum heating power 19 4 6 In the boiler it is possible to monitor the correct operation of the flue exhaust air intake checking for a loss of general pressure in the system Through the use of a differential manometer connected to the test points of the combustion chamber it is possible to detect the AP of operation of the air Fume DISCHARGE MONITORING pressure switch The value detected should not be less than 0 55 mbar under conditions of maximum thermal power in order for the boiler to function properly and without interruption 4 7 4 8 SAFETY SYSTEMS DRAINING THE SYSTEM The boiler is fitted with the following devices see section 4 2 for references 1 IGNITION FAILURE This indicates ignition failure when a flame is not detected within 7 seconds of starting an ignition sequence The L E D F will illuminate to signal the shutdown status The system can be reset by pressing and releasing the button E after checking to make sure that the gas cock is open INSUFFICIENT SYSTEM PRESSURE In the event of insufficient water pressure in the heating system a safety device will shutdown the boiler Check the system pressure on the pressure gauge J and if it is less than 0 4 bar refill the system to 1 5 bar Once the system pressure is at the correct level the boiler will ignite automatically OVERHEATING Th
40. round facing each other to give the correct spark gap Check that the cables have been connected correctly d Check that the rubber gasket covers the cable electrode connection point completely 1 3 4 Removing the main heat exchanger 1 Drain the boiler of water 2 Release the overheat thermostat sensor I Fic 1 16 3 Release the two connection nuts J connecting the exchanger to the flow and return pipes 1 17 4 Remove the heat exchanger by sliding forward Fic 1 18 Fig 1 16 Fic 1 17 FiG 1 18 1 3 5 Removing the air pressure switch 1 Disconnect the electrical connections K and silicone pipes from their connection points Fic 1 19 2 Remove screws M on the top of the sealed chamber 1 20 3 Lift out the air pressure switch Fic 1 21 4 Unscrew to remove the switch from the plate Fia 1 19 FiG 1 21 1 3 6 Removing the fan 1 Disconnect electrical connections N and silicon pipe O FiG 1 22 2 Remove screw P and remove the fan collar clamp Q Fic 1 23 3 Remove screws FiG 1 24 4 Remove f
41. s in which the combustion circuit air vent intake and combustion chamber are air tight with respect to the room in which the appliance is installed can be installed in any type of room Secondary ventilation is not required with this boiler The boiler must be installed on a solid permanent wall to prevent access from the rear gt lt 24 297 130 1 156 Euri 1 Z t I 2 1 2 2 2 LL 450 mm 2 2 J E M J I J I 4001 4 105 68 132 132 68 305 an 315 v A A C E 3 4 3 4 3 4 18 2 1 mm __N L E FiG 2 2 2 33 OVERALL DIMENSIONS LEGEND Central Heating Flow 3 4 Gas Inlet 3 4 Central Heating Return 3 4 Clearances 2 4 CLEARANCES In order to allow for access to the interior of the boiler for maintenance purposes the boiler must be installed in compliance with the minimum clearances indicated in Fic 2 1 2 5 MOUNTING THE APPLIANCE Fasten the boiler in place using the template and anchors supplied with the unit It is highly recommended that a spirit level be used to position the boiler so that it is perfectly level For additional information please consult the instructions contained in the connection kit and the flue kit 2 6 ELECTRICAL CONNECTION For safety purposes have a compete
42. s flue connector the restrictor must be 46 or 41 in diameter depending on the length of piping indicated in TABLE 2 1 Fic 2 9 and Fic 2 10 illustrate some of the various designs for coaxial or twin pipe flue systems For further information on discharge ventilation accessories see the FLUE PIPE ACCESSORIES MANUAL m SYSTEM Exhaust Restrictor Maximum Risk of Condensation Forming TABLE 2 1 Type 946mm Extension Piping not insulated Piping insulated 21 RFFI ExhausU ir 46 restrictor restrictor 46 restrictor restrictor Coaxial C12 xx Rm Systems C32 xx poste A NONE NONE NONE NONE 60 100 C42 xx mi SYSTEM Exhaust Restrictor Maximum Risk of Condensation Forming Type g 41 mm Extension Piping not insulated Piping insulated 28 RFFI Exhaust Air g 41 restrictor restrictor 41 restrictor NO restrictor Coaxial C12 xx Emine 05i Systems C32 xx lmay q W NONE NONE NONE NONE 60 100 C42 xx i SYSTEM Exhaust Restrictor Maximum Risk of Condensation Forming Type g 46 mm Extension Piping not insulated Piping insulated 21 RFFI Exhaust Air 46 restrictor NO restrictor 46 restrictor NO restrictor C12 xy 34 in 32 Lmax 25m 34m 45m 125m 160m Twin Pipe C42 xy dm Systems 80 80 C52 xy _ tene m 3 3m 4 8m 14 0m 17 8m SYSTEM Exhaust Restrictor Maximum Risk of Condensation Forming Type
43. sation detection electrode Safety device for gas cock Check of the electrical connection make sure it complies with the instructions in the manual General check of the combustion by products of the discharge ventilation system Check of the general performance of the unit 22 23 6 TECHNICAL INFORMATION CE Certification Heat Input max min kW Heat Output max min kW Efficiency of Nominal Heat Input 96 Efficiency at 30 of Nominal Heat Input 926 Heat Loss to the Casing AT 50 C Flue Heat Loss with Burner Operating Flue Heat Loss with Burner Off Maximum Discharge of Fumes G20 Residual Discharge Head Consumption at Nominal Capacity G20 Gas Consumption after 10 Minutes 15 C 1013 mbar G30 G31 Temp of exhaust fumes at nominal capacity COzContent Oz Content CO Content Minimum Ambient Temperature Head Loss on Water Side max AT 20 C mbar Residual Head of System bar Heating Temperature max min C Expansion Vessel Capacity Expansion Vessel Pre load Pressure bar Maximum Water Content of System Maximum Heating Pressure bar Nominal Pressure Natural Gas G20 mbar LPG G30 G31 mbar V Hz ppm Electrical Supply Power Consumption W Protection Grade of Electrical System IP Internal Fuse Rating Weight Kg G C Number 41 116 06 Calculated at 7096 maximum output Manufacturer Merloni TermoSanitari SpA Italy Commercial subsidiary MTS GB LIMITED MTS Building Hughenden Aven
44. t cause sparks Open doors and windows immediately to ventilate the room Shut the gas mains tap at or adjacent to the gas meter or the valve of the gas cylinder and call your Gas Supplier immediately If you are going away for a long period of time remember to shut the mains gas tap or the gas cylinder valve Always disconnect the appliance either by unplugging it from the mains or turning off the mains switch before cleaning the appliance or carrying out maintenance In the case of faults or failure switch off the appliance and turn off the gas tap Do not tamper with the appliance For repairs call your local Authorised Servicing Centre and request the use of original spare parts For in guarantee repairs contact MTS GB Limited Check the following at least once a year 1 Check the seals for the water connections replace any faulty seals 2 Check the gas seals replace any faulty gas seals 3 Visual check of the entire unit 11 12 13 Visual check of the combustion process or analysis of combustion by products see section 4 5 and cleaning of the burner if needed If called for by point 3 dismantling and cleaning of the combustion chamber If called for by point 4 dismantling and cleaning of the burner jets Visual check of the primary heat exchanger check for overheating in the blade assembly clean the exhaust fan if needed Adjustment of the flow rate of the gas flow rate for lighting part
45. th automatic 7 air release valve 16 Expansion vessel 8 15 17 Air pressure switch 9 Central Heating Flow 06 Inlet Gas 10 913 C Central Heating Return 12 YA XC Pd 14 3 D H W STORAGE The microSYSTEM can be connected to a storage cylinder both open vented and unvented for the production of domestic hot water D H W Cylinders of different CYLINDER Capacities can be used depending on site requirements see TABLE 3 1 for a selection of ARISTON unvented cylinders 3 1 2 PORT AND 3 PORT VALVE INSTALLATIONS 2 port valve installation 3 1 3 3 Wiring to 2 port valve installation using an external 2 channel programmer Type Danfoss FP715 Type Honeywell ST6400C ROON THERMOSTAT CYLINDER THERMOSTAT SATISFIED N CALLING COMM 7 TERMINAL BLOCK D H W 2 PORT ZONE VALVE ORANGE GREY Z BROWN o PROGRAMMER BLUE GREEN YELLOW OFF C H DON RANGE os GREY J OFF e BROWN DH COM 947 BLUE o p GREEN YELLOW C H 2 PORT ZONE VALVE 15 Fic 3 4 TABLE 3 1 Wiring to 3 port valve installation using an external 2
46. the ambient temperature drops below 0 C during the winter This makes repeated draining of the entire system unnecessary 20 5 GAS ADJUSTMENTS TABLE 5 1 CATEGORY II2H3 Lower Wobbe Index 15 C 1013mbar Nominal Delivery Pressure Minimum Delivery Pressure 21 RFFI Main Burner n 12 jets 0 Consumption 15 C 1013mbar Consumption 15 C 1013mbar Gas Burner Pressure max min 28 RFFI Main Burner 14 jets Consumption 15 C 1013mbar Consumption 15 C 1013mbar Gas Burner Pressure max min MJ m h mbar mbar mm m h Kg h mbar m h Kg h mbar Methane Gas G20 1 30 2 4 1 05 8 5 1 7 1 30 3 15 1 26 11 0 1 6 Liquid Butane Gas G30 0 77 1 78 0 78 27 5 6 2 0 77 1 78 0 78 27 7 4 6 Liquid Propane Gas G31 0 77 1 76 0 77 37 4 8 0 0 77 1 76 0 77 35 5 6 0 1 mbar 10 197 mmc a 5 1 CHANGING THE TYPE OF GAS The outlet pressure of the gas cock is obtained by completely loosening the screw on the solenoid The maximum pressure of the gas to the burner will be equal to the nominal delivery pressure minus the head loss within the gas valve The boiler can be converted to use either methane natural gas G20 or LPG G30 G31 by an Authorised Service Centre The operations that must be performed are the following 1 Replace the jets on the main burner see table in section 5 2 Adjust the maximum
47. ue High Wycombe Bucks HP13 5FT Telephone 01494 755600 Fax 01494 459775 Internet http www mtsgpb Itd uk E mail info mtsgb ltd uk Technical Service Hot Line 01494 539579 SYSTEM 21 63AU4549 22 7 10 0 21 0 8 7 92 8 90 8 1 2 6 0 0 2 46 2 0 70 2 4 0 32 0 39 1 78 1 76 117 2 6 81 9 20 5 200 0 25 82 42 6 1 130 3 20 30 37 230 50 155 X4D FAST 2 AT 39 SYSTEM 28 RFF 63AU4549 29 8 12 0 27 8 10 5 93 5 90 7 0 2 6 3 0 4 60 1 60 3 15 0 37 2 34 2 31 128 8 6 9 8 1 48 5 200 0 25 82 42 6 1 130 3 20 30 37 230 50 155 X4D FAST 2 AT 39 41 116 07 23 99 84 1549 000 Stampa bieffe recanan Servicing Instructions Type C Boilers G C N 41 16 06 41 116 07 LEAVE THESE INSTRUCTIONS WITH THE END USER benchmark The code of practice for the installation commissioning amp servicing of central heating systems GARISTON Country of destination GB mi SYSTEM v T Le TABLE OF CONTENTS 1 1 1 2 1 3 1 4 1 5 1 6 2 1 SERVICING INSTRUCTIONS REPLACEMENT OF PARTS To GAIN GENERAL ACCESS Removing the front panel Removing the sealed chamber front cover Removing the side panels ACCESS TO THE COMBUSTION CHAMBER Removing the combustion cover Removing the burner and jets Removing the electrodes Removing the main heat exchanger Removing the air pressure switch
48. y must be carried out by a competent person i e polarity earth continuity resistance to earth and short circuit FiLLING THE HEATING SYSTEM Remove the panels of the case and lower the control panel see section 3 3 for further information Open the central heating flow and return cocks supplied with the connection kit there are two isolation points on the return connection Unscrew the cap on the automatic air release valve one full turn and leave open permanently Close all air release valves on the central heating system Gradually open valve s at the filling point filling loop connection to the central heating system until water is heard to flow do not open fully Open each air release tap starting with the lowest point and close it only when clear water free of air is visible Purge the air from the pump by unscrewing anticlockwise and removing the pump plug and also manually rotate the pump shaft in the direction indicated by the pump label to ensure the pump is free Refit the pump plug Continue filling the system until at least 1 5 bar registers on the pressure gauge Inspect the system for water leaks and remedy any leaks discovered GAS SUPPLY Inspect the entire installation including the gas meter test for soundness and purge the supply as described in BS 6891 1988 Open the gas cock supplied with the connection kit to the appliance and check the gas connections on the appliance for leaks 17 4 2 CONTROL PANEL
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