Installation and Servicing Instructions Type C Boilers microGENUS HE 24 MFFI G.C.N: 47-116-37 microGENUS HE 28 MFFI G.C.N: 47-116-38 microGENUS HE 32 MFFI G.C.
TABLE OF CONTENTS 1. GENERAL INFORMATION 1.1 1.2 2. GENERAL INSTRUCTIONS OVERALL VIEW INSTALLATION 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.8.1 2.9 2.9.1 REFERENCE STANDARDS SITING THE APPLIANCE OVERALL DIMENSIONS CLEARANCES MOUNTING THE APPLIANCE ELECTRICAL CONNECTION GAS CONNECTION WATER CONNECTION CONDENSATE REMOVAL FLUE CONNECTION FITTING THE COAXIAL FLUE ( 60/100 HORIZONTAL) 2.9.2 FITTING THE 5” FLUE ( 80/125 HORIZONTAL/VERTICAL) 2.9.3 FITTING THE COAXIAL FLUE ( 60/100 VERTICAL) 2.9.
1. GENERAL INFORMATION 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 they provide important information regarding the safe installation, use and maintenance of the product. For operating instructions please consult the separate End User Manual. 1.
1.2 OVERALL VIEW LEGEND: 1 28 2 27 3 26 4 5 25 6 7 8 24 9 10 11 12 13 14 23 22 21 20 15 16 17 18 19 4 FIG. 1.0 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28.
2. INSTALLATION 2.1 REFERENCE STANDARDS The technical information and instructions provided herein below are intended for the installer / Servicing Technician so that the unit may be installed and serviced correctly and safely. In the United Kingdom the installation and initial start up of the boiler must be by a CORGI Registered Installer in accordance with the installation standards currently in effect, as well as with any and all local health and safety standards i.e. CORGI.
2.3 OVERALL DIMENSIONS LEGEND: A = Central Heating Flow (3/4” - 22mm Copper Tail) B = Domestic Hot Water Outlet (1/2” - 15mm Copper Tail) C = Gas Inlet (3/4” - 15mm Copper Tail) D = Domestic Cold Water Inlet (1/2” - 15mm Copper Tail) E = Central Heating Return (3/4” - 22mm Copper Tail) 120 FIG. 2.1 2.4 CLEARANCES In order to allow access to the interior of the boiler for maintenance purposes, the boiler must be installed in compliance with the minimum clearances indicated in FIG. 2.
2.5.1. Drill the wall and plug using those supplied with the connections kit, position the hanging bracket and secure with the wall bolts supplied, assemble the connection kit and secure to the wall. NOTE: It is highly recommended that a spirit level be used to position the appliance to ensure that it is perfectly level. 2.5.2. Position the appliance on the hanging bracket and connect the connection kit to the boiler connections. (see also Sections 2.7 Gas Connections, 2.8 Water Connections & FIG. 2.3). 2.
2.7 GAS CONNECTION 2.8 WATER CONNECTIONS 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.
SAFETY VALVE DISCHARGE: The discharge should terminate facing downward on the exterior of the building in a position where discharging (possibly boiling water & 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.
situation it is necessary to treat the water with an appropriate corrosion inhibitor. - Any treatment of water by additives in the system for frost protection or for corrosion inhibition has to be absolutely suitable for all the metals used in the circuit.
2. External termination of condensate drainage pipe via internal discharge branch (e.g. sink waste) and condensate siphon ii) Connecting into the waste system of the building such as a washing machine or sink trap. The connection must be upstream of the washing machine/sink (If the connection is down stream of the waste trap then an additional trap giving a minimum water seal of 75 mm and an air break must be incorporated in the pipe run, as above.
2.9. CONNECTING THE FLUE IMPORTANT!! BEFORE CONNECTING THE FLUE, ENSURE THAT 1 LITRE OF WATER HAS BEEN POURED INTO THE EXHAUST CONNECTION TO FILL THE CONDENSATE TRAP (FIG.2.8). SHOULD THE TRAP BE EMPTY THERE IS A TEMPORARY RISK OF FLUE GASSES ESCAPING INTO THE ROOM. FLUE SYSTEM The provision for satisfactory flue termination must be made as described in BS 5440-1. The appliance must be installed so that the flue terminal is exposed to outdoor air.
Warning The exhaust gas ducts must not be in contact with or close to inflammable material and must not pass through building structures or walls made of inflammable material. When replacing an old appliance, the flue system must be changed. Important Ensure that the flue is not blocked. Ensure that the flue is supported and assembled in accordance with these instructions. Level 118 Installation without extension Fig. 2.11 Level Installation with extension Fig. 2.12 2.9.
Once cut to the required length, ensure that the flue is free from burrs and reassemble the flue.
clamps are necessary to secure the flue components. Before proceeding to fit the flue, ensure that the maximum flue length has not been exceeded (See the tables on Page 19) and that all elbows and bends have been taken into consideration, the maximum flue length is 10 metres, for each additional 90o elbow 1 metre must be subtracted from the total flue length, and for each 45o 0.5 metres must be subtracted from the total flue length (the height of the vertical adaptor and a 45o bend can be seen in Fig. 2.
roof (see Fig. 2.16 for distance from the wall to the centre of the flue). Cut a 120mm diameter hole through the ceiling and/or roof and fit the flashing plate to the roof. DO NOT cut the vertical flue kit. To connect the vertical flue kit directly to the boiler, place the vertical starter kit (Part No. 3318079) (see Fig. 2.
The twin flue pipes can be fitted with or without additional elbows and need no clamps, simply ensure that the red oring is inserted in the female end of the flue pipe and push the extension piece fully into the previous section of flue pipe or elbow, check that the o-ring is not dislodged when assembling the flue.
In the event that the air intake and exhaust are run to the left, it will be necessary to reduce the height of the air intake by cutting 20mm from the base of the air intake elbow (see Fig. 2.19) Fig. 2.
24 MFFI Exhaust Type Do not remove the Remove the Length Length Maximum Flue ø 40 mm Restrictor Reduction 45o Reduction 90o Length Restrictor (Fig.2.20A) elbow (m) elbow (m) Type 1 Coaxial Systems ø 60/100 Type 2 Between 500 mm - 1 m Between 1m-4m 4m 0.5 m 1.0 m TBC TBC 10 m TBC TBC Type 3 Type 1 Coaxial Systems ø 80/125 Type 2 Type 3 Twin Pipe Systems ø 80/80 Type 4 Between 1m - 10 m Between 10 m - 40 m 40 m 1.4 m 2.2 m Type 5 Between 1m - 10 m Between 10 m - 40 m 40 m 1.4 m 2.
TYPE 1 TYPE 4 TYPE 2 TYPE 5 TYPE 3 FIG. 2.21 NOTE: DRAWINGS ARE INDICATIVE OF FLUEING OPTIONS ONLY. Fig. 2.
J I K 2.10 CONTROL PANEL LEGEND: E C I 2 2 6 6 5 1 4 5 4 1 3 3 FIG. 2.23 FR020A * Warning the flue analysis mode must only be selected by a qualified service engineer. See Section 3.
2.12 1 REMOVING THE FRONT PANEL In order to access the inside of the boiler, it is necessary to unscrew the fastening screws “A” of the control panel located on the lower part of the panel itself. The control panel moves downward and when pulled forward rotates on two lateral hinges. The panel stays in a horizontal position, which allows access to the inner parts of the boiler.
2.14. FITTING THE DIGITAL CLOCK The microGENUS HE boiler is supplied with a factory fitted mechanical time clock. There is a digital clock available as an optional extra (code: 706348). To fit the digital clock it is necessary to proceed as follows:1. Remove the screws A (FIG. 2.25) and lower the control panel; A FIG. 2.25 2. Remove the screws A1 (FIG. 2.26) to gain access to the PCB, 3. Open the control panel (see Section 2.12); 4. Remove the screws D1 to gain access to the mechanical time clock (FIG.
2.15. SETTING THE MECHANICAL TIME CLOCK E 1. General layout The mechanical clock covers a 24 hour period. Each tappet represents 15 minutes A (Fig. 2.32). An override switch is located on the clock B (Fig 2.32). C 2. To set the time To set the time of day, grasp the outer edge of the dial and turn slowly clockwise until the correct time is lined up with the arrow C (Fig. 2.32). I 4 2 2 1 6 6 5 5 4 1 3 3 3. To Set the "On" and "Off" times The clock uses a 24 hour system. e.g. 8 = 8.
Automatic Operation Manual Operation Continuous Operation = ON = ON = Continuously ON = OFF = OFF = Continuously OFF The switching times correspond to the program entered. If the current switching mode is changed manually, the next switching time will be carried out automatically again according to the entered switching program. You can only return to automatic mode from the continuously-ON and continuouslyOFF switching modes by pressing the " " key.
FIG. 2.33 A16 1 2 3 4 5 6 7 8 Wh Wh Rd Blk Rd Wh Rd Bl CN205 M A ON N CN206 L H B 1 2 3 4 5 6 CN303 O FUSE FUSE Q CN201 5 6 CN205 I CN300 CN203 CN201 CN200 Blk Blk Gry Gry Pnk Wh Rd CN206 Wh Wh Pnk Pnk CN203 Blk Blk Rd Gry Gry Gry Gry or Bl Blk Blk CN302 CN302 P CN304 Blk Brn Brn Brn Bl Bl CN303 Bl Blk 2.
ATTENTION W H E N R E P L AC I N G T H E PCB, R E M OV E T H E EXISITING EEPROM KEY AND REPLACE WITH THE CORRECT EEPROM SUPPLIED WITH THE SPARE PART.
2.18 WATER CIRCUIT DIAGRAM FIG. 2.34 24 23 1 2 22 3 21 4 5 6 7 20 8 19 9 18 17 10 A B 11 C 12 LEGEND: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 28 Fan Heat Exchanger Overheat Thermostat Central Heating Flow NTC Burner Detection Electrode Ignition Electrodes Diverter Valve Low Water Pressure Switch Drain Valve Domestic Hot Water Temperature NTC Secondary Heat Exchanger Gas Valve D.H.W. Flow Switch D.H.W.
3. COMMISSIONING 3.1 INITIAL PREPARATION MTS (GB) Limited support the initiative. In Sections 11 and 12 of this manual you will find the commissioning checklist (page 68) and the service interval record (Page 69), It is important that the commissioning checklist 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 this manual with them whenever they contact a service engineer or us.
- If the boiler is installed in an existing system, any unsuitable additives must be removed prior to the fitting of the boiler; - Under no circumstances should the boiler be fired before the system has been thoroughly flushed; the flushing procedure must be in line with BS7593:1992.
3.2 T HE INITIAL START-UP E C A I 4 2 2 1 6 6 5 C 5 4 3 1 3 CHECKS TO BE RUN BEFORE INITIAL START- UP ARE AS FOLLOWS: FIG. 3.2 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 (FIG. 3.1); FIG. 3.
3.3 OPERATIONAL ADJUSTMENTS A To access the areas in which adjustments are made, it is necessary to open the control panel, as indicated in SECTION 2.12, then remove the rear inspection cover by unscrewing the two screws “A”. Access is thereby provided to the P.C.B. and to the following components: 1. The power supply cable connector; 2. The fuses; 3. The soft-light potentiometer must be set to ensure correct ignition; 4.
3.7 BOILER SAFETY SYSTEMS WARNING! The boiler is still powered. E The boiler is protected from malfunctioning by means of internal checks by the P.C.B., which brings the boiler to a stop if necessary. There are two types of shut-off: • SHUTDOWN (A) • SAFETY SHUTDOWN (E) C D I 2 2 1 6 6 5 5 3 4 1 3 4 A ” SHUTDOWN “A This type of appliance shutdown is called “non-volatile”, and is indicated on the display by a number preceded by the letter (A) , and by the symbol (G FIG. 2.
ANTI-FROST DEVICE: The boiler is equipped with an anti-frost device which, operates in two ways depending on the water temperature: Temperature @ Flow Sensor below 8oC; The pump will run at speed 2 for 2 mins (1 minute in CH and 1 minute in DHW). After 2 minutes the PCB will check the temperature at the Return Sensor, should the temperature be 8oC or higher the boiler will return to stand-by.
3.9 3.10 COMPLETION OPERATIONAL CHECKS For the Republic of Ireland it is necessary to complete a “Declaration of Conformity” to indicate compliance to I.S. 813. An example of this is given in the current edtion of I.S. 813. In addition it is necessary to complete the Commissioning Checklist, (Section 11, page 68). 1. The flue system must be visibly checked for soundness. 2.
3.11 INSTRUCTING THE END USER 1. Hand over the copy of the End User Instructions supplied with the appliance, together with these instructions, and explain how to use the timeclock and room thermostat if fitted. 2. Show the End User how to switch the appliance off quickly, and indicate the position of the electric supply isolator. 3. Inform the End User of the location of all drains, isolating valves and air vents. 4.
4. GAS ADJUSTMENTS TABLE A CATEGORY II2H3+ Lower Wobbe Index (15°C;1013mbar) Nominal Delivery Pressure Minimum Delivery Pressure microGENUS HE 24 MFFI Main Burner: n. 14 jets (ø) Consumption (15°C; 1013mbar) max - min Consumption (15°C; 1013mbar) max - min Gas Burner Pressure max - min microGENUS HE 28 MFFI Main Burner: n. 14 jets (ø) Consumption (15°C; 1013mbar) max - min Consumption (15°C; 1013mbar) max - min Gas Burner Pressure max - min microGENUS HE 32 MFFI Main Burner: n.
4.2 ADJUSTING THE GAS PRESSURES Setting the minimum and the maximum power of the boiler 1. Check that the supply pressure and dynamic working pressure to the gas valve is a minimum of 20 mbar for natural gas and 29 and 37 mbar for LPG (G30 or G31). 1 2. To do this, loosen the screw “A”. Fit the pipe of the pressure gauge to the inlet pressure connection of the gas valve “B” and check for the correct standing pressure, then operate the appliance and check for the correct working pressure.
CN206 CN203 CN200 6. When you have completed the above operations, turn off the hot water tap, reconnect the supply terminal to the modureg on the gas valve, reconnect the compensation pipe and replace the cap on the screw of the modureg. CN201 A Soft-light Adjustment Setting the maximum heating circuit power 2 1. To set the maximum heating circuit power, turn the On/Off knob to the “ON” position and set the time clock and any external controls to the “ON” position.
TABLE B Burner pressure Regulating the heating power for natural gas (G20) model 24 model 28 model 32 Burner pressure Regulating the heating power for butane gas (G30) Burner pressure Regulating the heating power for propane gas (G31) 40 model 24 model 28 model 32 40 38 36 34 model 24 model 28 model 32
5. MAINTENANCE It is recommended that the following inspections be carried out on the boiler at least once a year: 1. Visually check the appliance for correct installation; 2. Check the appliance for the correct operation; 3. Check the flue and flue installation for correct siting, installation and that it is in good condition.; 4. Remove the casing as described in Section 7.2; 5.
6. 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 and suitable protective clothing is worn. Before and after servicing, a combustion analysis should be made via the flue sampling point (please refer to SECTION 3.4 for further details).
6.2.2 Removing the sealed chamber front cover 6.2.3 Removing the side panels 1. Remove the screws “C” (FIG. 6.5); 2. Lift the sealed chamber front cover from the locating pins (FIG. 6.6). 1. Remove the four screws “D” for each side panel (FIG.6.7); 2. Pull the panel away from the boiler at the base, then lift the panel up and remove from the boiler. FIG. 6.7 D C C D FIG. 6.5 D D FIG. 6.
6.3 ACCESS TO THE COMBUSTION CHAMBER 6.3.1 Removing the combustion cover 1. Remove the screws “E” (FIG. 6.8); 2. Lift off the combustion cover. FIG. 6.8 FIG. 6.10 6.3.3 Removing the electrodes E E E E Before carrying out this procedure, unscrew and slide the burner forward (see previous section). 1. Remove rubber gasket “G” (FIG. 6.11); 2. To remove the detection electrode disconnect the cable at its connection point close to the P.C.B. (FIG. 6.12); 3. Remove screw “H” (FIG. 6.13); 4.
6.3.4 Removing the main heat exchanger FIG. 6.13 1. Drain the boiler of water; 2. Remove the side panels (see 6.2.3) 3. Remove the overheat thermostat sensor “H” (FIG. 6.15); 4. Remove the clips “I” (FIG. 6.15); 5. Release the connection nut “J” (FIG. 6.16); 6. Release the connection nut “K” (FIG. 6.17); 7. Pull down the pipe (FIG. 6.18); 8. Pull it straight out (FIG. 6.19). H I H I FIG. 6.15 J FIG. 6.
N FIG. 6.18 FIG. 6.21 O FIG. 6.19 FIG. 6.22 6.3.5 Removing the air pressure switch 1. Disconnect the electrical connections “L” and silicone pipes “M” from their connection points (FIG. 6.20); 2. Remove screws “N” on the top of the sealed chamber (FIG. 6.21); 3. Lift out the air pressure switch; 4. Unscrew the two screws “O” to remove the switch from the plate (FIG. 6.22 - 6.23); 5. Reassemble in reverse order. FIG. 6.23 M L FIG. 6.
6.3.6 Removing the fan 6.3.7 1. Remove screw “P” (FIG.6.24); 2. Disconnect electrical connections “Q” and silicone pipe “Q1” (FIG.6.25); 3. Remove fan and gasket “R” (FIG.6.26). 4. Reassemble in reverse order, ensuring the gasket “R” is seated correctly. Removing the flue sensor and condensate sensor 1. To remove the flue sensor, disconnect electrical connections “S” (FIG.6.27); 2. Remove screws “T” and remove the flue sensor (FIG.6.28 - 6.29). 3.
6.3.8 Removing the Recuperator 1. Remove the U-clips “U” (FIG.6.30); 2. Remove the clamp “V” to disconnect the condensate trap tube (FIG.6.31); 3. Loosen the nut “W” (FIG.6.32); 4. Remove the four screws “X” (FIG.6.33); 5. Remove the recuperator (FIG.6.34 - 6.35); 6. Reassembled in reverse order. X X U FIG. 6.33 FIG. 6.30 FIG. 6.34 V FIG. 6.31 FIG. 6.35 W FIG. 6.
6.3.9 Removing the Recuperator Housing 6.3.10 Removing the Condensate Trap 1. 2. 3. 4. 1. 2. 3. 3. 4. Remove the recuperator - see paragraph. 6.3.8 Unscrew the two screws “Y” (FIG.6.36); Remove the recuperator housing (FIG.6.37); Reassemble in reverse order. Remove the clamp “Z” (FIG.6.38); Remove the clamp “A1” (FIG.6.39); Unscrew and remove the trap from the boiler (FIG.6.40); Remove the trap (FIG.6.41).
6.4 ACCESS TO THE GAS VALVE 6.4.2 Removing the gas valve (Honeywell) Important! Before removing the gas valve, ensure the gas supply is turned off. 6.4.1. Removing the spark generator 1. Disconnect the ignition leads “A2” by pulling upward (FIG. 6.42); 2. Remove the screw “A3” (FIG. 6.43); 3. Remove the spark generator by pulling forward from the gas valve (FIG. 6.44). 1. Disconnect all the cables from the solenoid and modureg; 2. Remove the spark generator (see previous section); 3.
6.5 ACCESS TO THE WATER CIRCUIT Important! Before any component is removed, the boiler must be drained of all water. 6.5.1 Removing the D.H.W. (secondary) exchanger 1.Remove the condensate trap - see Section. 6.3.10; 2.Remove the screws “A6” (FIG 6.48); 3.Disconnect the cable “A7” (FIG 6.49); 4.Push the insulation of the exchanger towards the rear of the boiler, and lift upwards and remove from the front of the boiler (FIG 6.50); 5.
6.5.2 Removing the pump pressure switch 6.5.3 Removing the safety valve 1. Remove the pump pressure switch electrical connections “A8” (FIG 6.52); 2. Unscrew the pump pressure switch by using a spanner on the nut (FIG 6.53); 3. Remove the pump pressure switch (FIG 6.54). 1. Disconnect the discharge pipe work from below the boiler; 2. Unscrew the fixing screw “A9” (FIG. 6.56) 3. Pull the valve upwards to remove (FIG. 6.57). A8 A8 FIG. 6.55 FIG. 6.52 A9 52 FIG. 6.53 FIG. 6.56 FIG. 6.54 FIG. 6.
6.5.4 Removing the automatic air vent 6.5.5 Removing the pump 1. Remove the U-clip “B1” (FIG. 6.58); 2. Remove valve complete with float using a screwdriver (FIG 6.59-FIG 6.60). 1. Remove the electrical connetction “ B2” (FIG. 6.61); 2. Release the nut “B3” (FIG. 6.62); 3. Remove the retainig clip “B4” from the side of the pump housing (FIG. 6.63); 4. Remove the screw “B5” (FIG. 6.64); 5. Remove the U-clip “B6” and remove the pressure gauge connection (FIG. 6.65); 6.
6.5.6 Removing the pressure gauge 1. Remove the U-clip “B8” (FIG. 6.67) 2. Push the pressure gauge through the control panel from the rear using a screwdriver (FIG. 6.68-6.69). B5 FIG. 6.64 B8 B6 FIG. 6.67 FIG. 6.65 B7 FIG. 6.68 FIG. 6.66 FIG. 6.
6.5.7 Removing the expansion vessel 6.5.8 Removing the overheat thermostat 1. 2. 3. 4. 1. Disconnect the overheat ther mostat electrical connections “C2” (FIG. 6.73); 2. Then remove the thermostat from its mounting by releasing the securing clip (FIG. 6.74-6.75). If rear exit flue, remove the flue; Release nut “B9” (FIG. 6.70); Remove back-nut “C1” (FIG. 6.71); Remove the expansion vessel (FIG. 6.72). C2 B9 FIG. 6.70 FIG. 6.73 FIG. 6.71 FIG. 6.74 FIG. 6.72 FIG. 6.
6.5.9 Removing the C.H. temperature sensor (N.T.C.) 1. Pull off the electrical connector and remove the sensor probe using a suitable spanner (FIG. 6.76-6.77). 6.5.10 Removing the D.H.W. temperature sensor (N.T.C.) 1. Pull off the electrical connector and unscrew the sensor probe using a suitable spanner (FIG. 6.78). FIG. 6.76 FIG. 6.78 6.5.11 Removing the diverter valve actuator 1. Unplug the electrical connector “C3” (FIG. 6.79); 2.
6.5.12 Removing the D.H.W. flow switch 6.6 ACCESS TO THE CONTROL SYSTEM 1. Unplug the electrical connector “C5” (FIG. 6.80); 2. Remove the D.H.W. flow switch using a screwdriver (FIG. 6.81-6.82). Important! Isolate the electrical supply to the boiler before accessing the control panel. 6.6.1 Checking the fuses 1. Remove the inspection cover on the reverse of the control panel and unscrew the screws “C6”(FIG. 6.83); 2. Remove the fuses (FIG. 6.84). C5 FIG. 6.80 C6 C6 FIG. 6.83 FIG. 6.81 FIG. 6.
6.6.2 Removing the P.C.B. 1. Isolate electricity; 2. Remove the inspection cover from the reverse of the control panel, unscrew the screws “C7” (FIG. 6.85); 3. Unplug all electrical connections from the recuperator P.C.B on the reverse of inspection cover (FIG. 6.86); 4. Unscrew the recuperator P.C.B mounting screws “C8” (FIG. 6.87); 5. Unplug the electrical connection from the P.C.B.; 6. Unplug carefully the EEPROM “C9” (FIG. 6.88); 7. Remove the screws “D1” (FIG. 6.89); 8.
6.6.3 Removing the time clock 1. Disconnect the electrical connections “D5” from the clock (FIG. 6.93); 2. Remove screws “D6” (FIG. 6.93); 3. Lift out the time clock from the control panel (FIG. 6.94). D4 D4 FIG. 6.91 D5 D6 FIG. 6.93 FIG. 6.92 FIG. 6.
7. FAULT FINDING 7.1 FAULT FINDING GUIDE (FLOW-CHARTS) These fault finding guides are not exhaustive. However, it is possible to detect and correct many defects by using the standard fault finding diagrams described in this chapter, ensure these guides are carried out in the set order.
A IS THE PUMP RUNNING? NO YES POWER TO THE PUMP? YES NO 1. Check pump cable 2. Check/replace main P.C.B. IS THE LOW WATER PRESSURE SWITCH WORKING CORRECTLY? E02: does not close NO 1. Check if there is air in the system 2. Check the main circuit flow switch operation 3.
B IS THE FAN RUNNING? NO DOES CODE E33 APPEAR? YES NO Replace the main P.C.B. IGNITION SPARKS ARE GENERATED REGULARLY? NO YES 1. Check the fan cable 2. Replace the fan 3. Replace the main P.C.B. 1. Check/replace ignition electrode 2. Check ignition cable 3. Check/replace the main P.C.B. YES IS THE BURNER ALIGHT? YES 1. Check the power supply of the gas valve. 2. Check for an air pressure signal NO 3. Check the gas pressure on the burner 4. Check the soft-light adjustment 5.
8.
code 65100547 601 401 601 606 402 602 602 608 604 610 605 603 607 403 601 609 603 611 code 65101257 code 65102576 501 702 701 503 502 701 504 705 703 704 701 701 701 64
Key no. 18 19 22 25 26 27 30 32 43 46 54 72 72 73 80 80 81 82 84 87 89 90 93 106 108 110 111 112 118 126 127 G.C. part no.
General Info Name CE Certification Flue Type Energy Performance Heat Input max/min kW Heat Output max/min kW Efficiency of Nominal Heat Input (60/80°C) % Efficiency of Nominal Heat Input (30/50°C) % Efficiency at 30% of Nominal Heat Input (30°C) % Efficiency at Minimum Input % Efficiency (Dir. 92/42/EEC)** SEDBUK Rating Band (%) Heat Loss to the Casing (DT=50°C) % Emissions Max Discharge of Products of Combustion (G20) Residual Discharge Head Temp.
General Info Name CE Certification Flue Type Energy Performance Heat Input max/min kW kW Heat Output max/min Efficiency of Nominal Heat Input (60/80°C) % Efficiency of Nominal Heat Input (30/50°C) % Efficiency at 30% of Nominal Heat Input (30°C) % Efficiency at Minum Input % Efficiency (Dir. 92/42/EEC)** SEDBUK Rating Band (%) Heat Loss to the Casing (∆T=50°C) % Emissions Max Discharge of Products of Combustion (G20) Residual Discharge Head Temp.
10.
11.
A charge will be made to the owner of the appliance if: ∑ ∑ ∑ ∑ The reason for any service visit is as a direct result of a failure to install the appliance in accordance with the manufacturer’s instructions. Your installer does not complete the necessary commissioning process and procedure as detailed in the Installation and Operating Instructions. Your appliance is not serviced on or before the 12 month anniversary of installation - this only applies to appliances with a 2 and 5 year guarantee.
