SERIES Installation and Servicing Instructions Type C Boilers G.C.
TABLE OF CONTENTS 1. GENERAL INFORMATION 1.1. 1.2. 6. SERVICING INSTRUCTIONS 6.1. 6.2. GENERAL INFORMATION OVERALL VIEW 6.2.1. 2. INSTALLATION 2.1. 2.2. 2.3. 2.4. 2.5. 2.6. 2.7. 2.8. 2.9. 2.10. 2.10.1. 2.10.2. 2.10.3. 2.10.4. 2.10.5. 2.11. 2.12. 6.3. 6.3.1. 6.3.2. 6.3.3. 6.3.4.
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.
1.2. OVERALL VIEW 27 MFFI 1 2 3 4 27 RFFI 1 2 24 5 6 4 24 5 6 7 23 8 9 23 22 21 8 9 20 10 11 3 12 10 11 12 7 21 13 14 15 16 17 18 19 FIG. 1.0 LEGEND: 1. Flue connector 2. Air release valve 3. Pump pressure switch 4. Central Heating flow temperature probe 5. Mixer 6. Ignition and detection electrode 7. Fan 8. Silencer 9. Central Heating return temperature probe 10. Condensate trap (tube) 11. Condensate trap 12. Safety valve (3 bar) 13. Domestic Hot Water temperature probe 14.
2. INSTALLATION 2.1. REFERENCE STANDARDS 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 Approved 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 .
2.3. OVERALL DIMENSIONS 27 MFFI FIG. 2.0 700 100 F 27 RFFI 8 305 88 400 LEGEND: A = Central Heating Flow (3/4”) B = Domestic Hot Water Outlet (1/2”) C = Gas Inlet (3/4”) D = Domestic Cold Water Inlet (1/2”) E = Central Heating Return (3/4”) F = Condensate discharge 100 132 132 F FIG. 2.1 2.4.
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.
2.8. WATER CONNECTIONS VIEW OF THE BOILER CONNECTIONS 27 RFFI 27 MFFI I I B A H C D E J C A E J H FIG. 2.4 Legend: A B C D = = = = Central Heating Flow Domestic Hot Water Outlet Gas Inlet Domestic Cold Water Inlet E H I J = = = = Central Heating Return Condensate discharge Safety valve discharge Drain valve Central Heating Detailed recommendations are given in BS 6798:1987 and BS 5449-1:1990, the following notes are given for general guidance.
i) Connecting in to an internal soil stack (at least 450 mm above the invert of the stack). A trap giving a water seal of at least 75 mm must be incorporated into the pipe run , there also must be an air break upstream of the trap. ii) Connecting into the waste system of the building such as a washing machine or sink.
2.9. FLUE CONNECTIONS 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. 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.
FIG. 2.7 2.10. ACCESSORY CONNECTION IMPORTANT!! Before carrying out any repairs to the appliance always ensure that the external power supply has been isolated. The boiler will remain live even when the ON/OFF knob is in the “O”(off) position. In order to gain access to the external control connections, it is first necessary to lower the control panel (as shown in Section 3.2) then proceed as follows: 1. Remove the service cover on the control panel (FIG 2.8). 2. Pierce the grommett ‘M1’ (FIG. 2.
2.11. ELECTRICAL DIAGRAM The P.C.B. is fitted with 2 fuses, on the live and the neutral. The fuse holder contains: - 5 x 20mm “3.15A Slow” glass fuses A N M I I I K I K B H G L F C J D E O 7 8 9 10 11 121314 15 16 h Prog . 7 8 9 10 11 121314 15 16 m Day MV OP FI NTC2 FS NTC3 NTC1 VG CI L N SE SP Q O P CR Q S S R T 12 TA LEGEND: A: JUMPER When needed, the P.C.B. allows the different options to be selected by means of a wire link.
This is the factory configuration. It is recommended that this set-up not be changed, unless under the following particular circumstances: JUMPER 3: if the contact is closed, the Secondary Output (flying clamp connected to connection C7; positions 1-9) controls a LPG valve (optional). JUMPER 4: if the contact is closed, the continuous operation of the pump is selected. If the contact remains open, it has no effect and there is no change in the operation of the boiler.
C1 = FAN 1: “Hall” sensor power supply 12V (red) 2: “Hall” sensor neutral (blue) 3: Not used 4: Start of coil (black) 5: “Hall” sensor input (white) 6: End of coil (brown) C2 = POWER SUPPLY 1: Earth (yellow/green) 2: Earth (yellow/green) 3: Not connected 4: Neutral (blue) 5: Not connected 6: Live (brown) C3 = CONNECTION TO ROOMSTAT 1: Input - 1 2: Input - 2 C4 = TIMER (Factory fitted for MFFI - Oprtional extra for RFFI) 1: 3 V output 2: Timer ground 3: Timer output 4: Not connected C5 = REMOTE CONTROL (Bus+
2.12.
27 RFFI 1 2 24 3 4 23 5 6 22 21 20 7 8 9 19 10 11 12 18 E A 17 C D 16 13 14 B 15 Legend: 1 - Heating flow temperature probe 2 - Air release valve 3 - Ignition/detection electrode 4 - Injector 5 - Fan 6 - Silencer 7 - Condensate discharge tube 8 - Gas valve 9 - Pressure gauge 10 - Pump pressure switch 11 - Safety valve (3 bar) 12 - D.H.W.
3. COMMISSIONING 3.1. INITIAL PREPARATION Preliminary electrical system checks to ensure electrical safety 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 3.2. for further information). Open the central heating flow and return cocks supplied with the connection kit.
3.3. CONTROL PANEL 27 MFFI B C D E h Prog . A m Day F G H KJ I 27 RFFI C D E h Prog . A m Day F G H KJ 18 I A. B. C. D. E. F. G. H. I. J. K. Selector Knob for ON/OFF-Summer-Winter Domestic Hot Water Temperature Adjustment Knob Central Heating Temperature Adjustment Knob Time Clock (Optional for ecoSYSTEM) Heating System Pressure Gauge Programming “+” key Programming “-” key Reset Button Multifunction Display “COMFORT” Function L.E.D.
3.4. INITIAL START-UP 1. Make sure that: - the cap of the automatic air release valve is loosened; - the system pressure is at least 1 bar on the pressure gauge; - the gas cock is closed; - the electrical connection has been carried out in the correct manner. To allow the air to escape from the system, proceed as follows: - turn on the On/off knob “A” to the “winter” position. The boiler pump will start up and three consecutive attempts will be made to ignite the burner.
3.5. DISPLAY: MESSAGES SHOWN DURING NORMAL OPERATION During operation of the boiler, while it is carrying out its normal operations, the left-hand display shows a series of characters that refer to the operations indicated below: - Diagnostics phase (precedes the other operations) 0 No request for heat C Heating, burner off C. Heating, burner on c Pump overrun for heating d Domestic hot water, burner off d.
PUMP OVERRUN G- F+ FIG. 3.3 H G- F+ FIG. 3.4 The pump overrun may be varied (after the burner has been turned off). To access this function, it is necessary to press the reset button for over 5 seconds and then press it A” appears on the left-hand display.
Adapting the heat curve “d” set” G- F+ FIG. 3.6 H (Only enabled when an outdoor sensor is installed) To adapt the heat curve to the system requirements, set parameter “d” in order to shift the curve in parallel, so that the flow temperature calculated is changed, along with the ambient temperature. When “d” appears on the left-hand display, use the heating control knob to shift the curve in parallel as illustrated in the figure below.
3.6.2 SETTINGS DISPLAY The boiler is designed to monitor some operating variables and settings by means of the display on the front control panel. Keeping the reset key pressed for over 10 seconds allows access to the “readout” function of the main system variables.
3.6.4 GAS REGULATION CHECK 4 3 2 1 2 3 1 4 FIG. 3.11 FIG. 3.12 Supply pressure G20 methane G30 butane G31 propane 17-25 mbar 25-35 mbar 25-45 mbar Supply pressure check 1. Loosen screw “1” (Fig. 3.12) and insert the pressure gauge connection pipe into the pipe tap. 2. Turn the boiler on at maximum power, enabling the “flue sweep” function (press the Comfort key “K” for 5 seconds). The supply pressure should correspond to that foreseen for the type of gas the boiler is designed for (See table 4C).
3.6.5 IGNITION DELAY ADJUSTMENT The ignition delay can be adjusted to between 0 and 15 minutes. The delay is factory set to 2 minutes. The value set can be displayed as illustrated in paragraph 3.6.2. To access the potentiometer “C” (Fig. 3.14), open the control panel as illustrated in paragraph 3.2 and open up the service flap (Fig. 3.13). 3.6.6 ADJUSTING THE MAXIMUM HEATING POWER FIG. 3.
3.7 Gas Changeover The boiler operation can be changed over from methane gas (G20) to Liquid Gas (G30-G31) or vice versa, an operation that must be performed by an Authorised Service Centre. The operations to carry out are the following: 1. Replacement of the nozzle (see table); 2. Replacement of the gas label; 3. Air/gas ratio adjustment to be made in accordance with paragraph 3.6.4 GAS LIQUIDO GAS METANO Diameter of 6 nozzle holes (mm) Display of recommended soft light power 1 G30 G31 2.8 2.0 2.
3.8. BOILER SAFETY SYSTEMS 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. In the event of the boiler being shut off in this manner, a code appears on the display which refers to the type of shut-off and the reason behind it.
pump turns on (heating system circulation). If the temperature goes below 2°C, the boiler turns on at the minimum power and remains on until the return temperature is over 10°C. - Outdoor sensor installed: the pump turns on if the external temperature goes below -3°C, it turns off when the external temperatures raises above -1°C. - Continuous operation of the pump: select by means of jumper 4 (see paragraph 2.11). NOTE: In all cases, the circulation takes place in the heating system.
4. ZONE VALVES The boiler is capable of managing a heating system that uses zone valves. The electrical connection of these valves is carried out by means of the appropriate terminal board (indicated in the “ELECTRICAL CONNECTION” section). By way of example, two possible types of systems would be: 1. System with 2 valves with independent regulation of the zones (day and night). 2. System with 1 valve (regulation of the night zone subordinated to that of the day).
5. MAINTENANCE 5.1. GENERAL REMARKS 5.2. CLEANING THE PRIMARY EXCHANGER It is recommended that the following inspections be carried out on the boiler at least once a year: 1. Check the seals in the water group and, if necessary, replace the gaskets and restore the seal to perfect working order. 2. Check the seals in the gas group and, if necessary, replace the gaskets and restore the seal to perfect working order. 3. Visually check the overall state of the boiler. 4.
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. Before and after servicing, a combustion analysis should be made via the flue sampling point (please refer to the Installation Manual for further details).
6.2.1. REMOVING THE SIDE PANELS 6.3. 1. Remove the screws “C” (FIG. 6.4); 2. Pull each panel away from the boiler, then lift the panel up and away from the boiler. ACCESS TO THE COMBUSTION CHAMBER Removing the sealed chamber front cover 1. Remove the screws “D” (FIG. 6.5); 2. Pull the cover away from the boiler (FIG. 6.6). C D D FIG. 6.5 C FIG. 6.4 FIG. 6.
6.3.1. REMOVING THE FAN FIG. 6.9 1. Disconnect the electrical connector “E” (FIG. 6.7); 2. Disconnect the compensation tube “F” (FIG. 6.8); 2. Unscrew the three screws “G” (FIG. 6.9); 3. Pull the fan away from the mixing tube (FIG. 6.10). 4. Unscrew the screws “H” (FIG. 6.11) and remove the silencer. G G E FIG. 6.7 FIG. 6.10 H H F H FIG. 6.8 FIG. 6.
6.3.2. REMOVING THE BURNER With the fan removed (see previous section); 1. Loosen nut “I” (FIG. 6.12); 2. Remove nuts “J” (FIG. 6.13); 3. Remove mixing tube (FIG. 6.14); 4. Slide the burner from its housing (FIG. 6.15). FIG. 6.15 I 6.3.3. REMOVING THE ELECTRODES FIG. 6.12 1. Pull off the ignition cable “K” (FIG. 6.16); 2. Remove the two allen screws “L” (FIG. 6.17); 3. Extract the electodes (FIG. 6.18). K J FIG. 6.16 FIG. 6.13 L L FIG. 6.17 FIG. 6.
6.3.5. REMOVING THE HEAT EXCHANGER 1. Remove the two nuts “N” (FIG. 6.21+6.22); 2. Pull off the ignition cable (FIG. 6.23); 3. Loosen the two nuts “O” (FIG. 6.24); 4. Unscrew the two screws “P” (FIG. 6.25); 5. Unscrew the screw “Q” (FIG. 6.26); 6. Pull foward rhe heat exchanger (FIG. 6.27); FIG. 6.18 N Removing the combustion chamber inspection panel 1. Remove the four nuts “M” (FIG. 6.19); 2. Remove the inspection panel (FIG. 6.20). FIG. 6.21 M M FIG. 6.22 N M M FIG. 6.19 FIG. 6.20 FIG. 6.
O O FIG. 6.24 FIG. 6.25 FIG. 6.27 FIG. 6.28 P P P FIG. 6.
6.3.6. REMOVING THE CONDENSATE COLLECTOR 6.3.7. REMOVING THE CONDENSATE TRAP 1. Open the clamp and remove the condensate trap connection pipe “R” (FIG. 6.29); 2. Remove the nuts “S” (FIG. 6.30); 3. Remove the condensate collector (FIG. 6.31). 1. Open the clamp and remove the condensate trap connection pipe (FIG. 6.29+6.32); 2. Unscrew and remove the trap from the boiler (FIG. 6.33). 3. Remove the condensate trap (FIG. 6.34+6.35). R FIG. 6.29 FIG. 6.32 S FIG. 6.30 Fig. 6.33 FIG. 6.31 Fig. 6.
Fig. 6.35 6.3.8. REMOVING THE INJECTOR 1. Remove mixing pipe (FIG. 6.12+6.13); 2. Remove the fan, unscrew the screws “T” (FIG. 6.36+6.37); 3. Unscrew the injector “U” using a suitable screwdriver (FIG. 6.38); 4. Remove the injector (FIG. 6.39). Fig. 6.37 U T T T Fig. 6.38 Fig. 6.36 Fig. 6.
6.4 ACCESS TO THE GAS VALVE 6.4.1. REMOVING THE GAS VALVE 1. Disconnect the electrical connection “V” from the gas valve (FIG. 6.40); 2. Release the top nut “W” (FIG. 6.41); 3. Remove the screws “X” from the bottom of the gas valve pipe (FIG. 6.42); 4. Remove the gas valve (FIG. 6.43). X X FIG. 6.42 V FIG. 6.40 W FIG. 6.43 FIG. 6.
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 6.5.2. REMOVING THE SAFETY VALVE (ECOCOMBI 27 MFFI) 1. Remove the U-clip “Z” (Fig. 6.47); 2. Unscrew and remove the valve (Fig. 6.48). 1. Remove the screws “Y” (FIG. 6.44); 3. Push the exchanger towards the rear of the boiler, lift upwards and remove from the front of the boiler (FIG. 6.45 - 6.46); 4.
6.5.2. REMOVING THE SAFETY VALVE (ECOSYSTEM 27 RFFI) 6.5.2. REMOVING THE AUTOMATIC AIR VENT (ECOCOMBI 27 MFFI) 1. Loosen union “A1” (Fig. 6.49); 2. Unscrew and remove the valve (Fig. 6.50). 1. Remove the U-clip “A2” (FIG. 6.51); 2. Unscrew valve (FIG. 6.52); 3. Remove (FIG. 6.53). A2 A1 FIG. 6.51 FIG. 6.49 FIG. 6.52 FIG. 6.53 FIG. 6.
6.5.3. REMOVING THE AUTOMATIC AIR VENT (ECOSYSTEM 27 RFFI) 6.5.4. REMOVING THE PUMP PRESSURE SWITCH (ECOCOMBI 27 MFFI) 1. Unscrew valve “A3” (FIG. 6.54); 2. Remove (FIG. 6.55). 1. Remove the electrical connections “A4” (FIG. 6.56); 2. Unscrew and remove (FIG. 6.57). A3 A4 FIG. 6.54 FIG. 6.56 FIG. 6.55 FIG. 6.
6.5.4. REMOVING THE PUMP PRESSURE SWITCH (ECOSYSTEM 27 RFFI) 1. Remove the electrical connections “A5” (FIG. 6.56); 2. Unscrew and remove (FIG. 6.57). 6.5.5. REMOVING THE DIVERTER VALVE ACTUATOR 1. Unplug the electrical connector “A6” (FIG. 6.60); 2. Release the retaining clip “A7” and remove the diverter valve actuator (FIG. 6.61). 3. Unscrew the two screws “A8” (FIG. 6.62); 4. Remove the “actuator” “A9” (FIG. 6.63 - 6.64). A5 A6 FIG. 6.60 FIG. 6.58 A7 FIG. 6.61 A8 FIG. 6.59 FIG. 6.
6.5.6. REMOVING THE D.H.W. FLOW SWITCH 1. Unplug the electrical connector “B1” (FIG. 6.65); 2. Unscrew the four screws “B2” (FIG. 6.66); 3. Remove the D.H.W. flow switch (FIG. 6.67). A9 FIG. 6.63 B1 A9 FIG. 6.65 FIG. 6.64 B2 FIG. 6.66 FIG. 6.
6.5.7. REMOVING THE PUMP (ECOCOMBI 27 MFFI) 1. Unplug the electrical connection “B3” (FIG. 6.68); 2. Unscew the four scews “B4” (FIG. 6.69); 3. Remove the pump (FIG. 6.70 - 6.71). B3 FIG. 6.70 FIG. 6.68 B4 FIG. 6.71 FIG. 6.
6.5.7. REMOVING THE PUMP (ECOSYSTEM 27 RFFI) 1. 2. 3. 4. 5. 6. Unplug the electrical connection “B5” (FIG. 6.72); Remove the U-clip “B6” (FIG. 6.73); Remove the slide plate “B7” (FIG. 6.74); Unscew the screw “B8” under the boiler (FIG. 6.75); Remove the U-clip “B9” of the pressure gauge (FIG. 6.76); Remove the pump (FIG. 6.77). B5 B8 FIG. 6.75 FIG. 6.72 B9 B6 FIG. 6.76 FIG. 6.73 FIG. 6.77 B7 FIG. 6.
6.5.8. REMOVING THE PRESSURE GAUGE (ECOCOMBI 27 MFFI) 6.5.8. REMOVING THE PRESSURE GAUGE (ECOSYSTEM 27 RFFI) 1. Release U-clip “C1” (FIG. 6.78 - 6.79); 2. Ease the pressure gauge through the control panel from the rear (FIG. 6.80); 3. Remove the pressure gauge. (FIG 6.81). 1. Ease the pressure gauge through the control panel from the rear (FIG. 6.82 - 6.83); 2. Remove the pressure gauge. (FIG 6.84). C1 FIG. 6.78 FIG. 6.82 FIG. 6.79 FIG. 6.83 FIG. 6.80 FIG. 6.84 FIG. 6.
6.5.9. REMOVING THE EXPANSION VESSEL 1. Loosen nut “C2” (FIG. 6.85); 2. Loosen nut “C3” (FIG. 6.86); 3. Remove the expansion vessel (FIG. 6.87). 6.5.10 R EMOVING THE D.H.W. T EMPERATURE PROBE (N.T.C.) (MFFI ONLY) 1. Remove the electrical connector “C4” by pulling off (Fig. 6.88); 2. Unscrew and remove the D.H.W. temperature probe “C5” (FIG. 6.89). C4 C2 FIG. 6.85 FIG. 6.88 C3 C5 FIG. 6.89 FIG. 6.86 FIG. 6.
6.5.11. Removing the C.H. Flow Temperature Probe (N.T.C.) 6.5.12. REMOVING THE C.H. RETURN TEMPERATURE PROBE (N.T.C.) 1. Remove the C.H. flow temperature probe “C6” by pulling off (Fig. 6.90); 2. Remove the electrical connection from the C.H. flow temperature probe “C7” (FIG. 6.91). 1. Remove the C.H. return temperature probe “C8” by pulling off (Fig. 6.92); 2. Remove the electrical connection from the C.H. return temperature probe “C9” (FIG. 6.93). C6 C8 FIG. 6.90 FIG. 6.92 C9 C7 FIG. 6.91 FIG.
6.6 ACCESS TO THE CONTROL SYSTEM 6.6.1. CHECKING THE FUSES 1. Remove the inspection cover on the reverse of the control panel (FIG. 6.94); 2. Remove the fuses by pushing and rotating fuse holders “D1” (FIG. 6.95). 6.6.2. REMOVING THE P.C.B.S 1. Remove the inspection cover on the reverse of the control panel (FIG. 6.94); 2. Unplug all the electrical connections (FIG. 6.96); 3. Unscew the screws “D2” (FIG. 6.97); 4. Remove the facia panel (FIG. 6.98); 5. Unscrew the screws “D3” (Fig. 6.99); 6.
6.6.3. REMOVING THE TIME CLOCK D3 D3 1. Open the control panel (see the paragraph “Removing the P.C.B.s”); 2. Unplug the electrical connection from the time clock and unscews the four scews (FIG. 6.103); 3. remove the time clock (FIG. 6.104). FIG. 6.99 FIG. 6.103 FIG. 6.100 FIG. 6.101 D5 D4 FIG. 6.104 FIG.6.
7. FAULT FINDING FAULT FINDING GUIDE (FLOW-CHARTS) 7.1. It is possible to detect and correct any defect by using the standard fault finding diagrams described in this chapter. Model 27 MFFI MAKE SURE THAT: 1. There is sufficient water in the system 2. The gas is turned on 3. The electrical supply is turned on TURN THE ON/OFF KNOB TO WINTER OR SUMMER POSITION NO IS THE DISPLAY ON? YES TABLE I and II DOES A STOP CODE APPEAR ON THE DISPLAY? WINTER SUMMER COMFORT SELECTOR ON/OFF: green L.E.D.
Model 27 RFFI System MAKE SURE THAT: 1. There is sufficient water in the system 2. The gas is turned on 3. The electrical supply is turned on TURN THE ON/OFF KNOB TO WINTER OR SUMMER POSITION NO IS THE DISPLAY ON? TABLE I and II YES DOES A STOP CODE APPEAR ON THE DISPLAY? SUMMER C.H. ONLY SELECTOR ON/OFF ON (green L.E.D. on): cylinder excluded 1. Check the fuses 2. Check the power supply to the control panel 3. Check/replace the ON/OFF button 4. Check the connection between the main and display P.
Model 27 MFFI/27RFFI System A IS THE PUMP RUNNING? NO YES POWER TO THE PUMP? YES IS THE PUMP PRESSURE SWITCH WORKING CORRECTLY? E01: does not close NO 1. Check if there is air in the system 2. Check the main circuit flow switch operation 3. Check the pressure on the water gauge and fill system to 1 bar YES Push the RESET button B 54 YES Release/replace pump NO 1. Check pump cable 2. Check/replace main P.C.B.
Model 27 MFFI/27RFFI System B IS THE FAN RUNNING? NO DOES CODE A33 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.
ecoCOMBI 27 MFFI 8.
ecoCOMBI 27 MFFI Key no. 2 8 11 12 13 14 15 16 18 19 20 24 25 26 28 31 32 40 42 49 57 58 59 60 61 62 63 64 65 67 68 69 71 72 73 74 75 81 82 82 86 97 98 99 100 103 107 108 109 111 113 115 116 117 118 120 121 122 124 126 130 G.C. part no. 164 225 164 261 164 282 ARISTON Part No. Description Expansion vessel Condensate trap (upper) 'O' Ring (condensate trap) Condensate trap (lower) Temperature probe (C.H. - T335D) + clips (18) Drain valve Low water pressure switch Secondary exchanger U clips 'O' Ring (C.
ecoSYSTEM 27 RFFI 55 54 53 52 51 50 49 304 1 304 58 2 58 56 3 49 4 6 88 58 7 87 86 58 91 90 89 49 5 8 76 59 9 10 60 11 61 62 84 303 48 93 47 82 77 81 88 80 94 76 79 13 76 78 17 46 96 97 95 77 64 14 302 76 83 85 63 12 301 92 57 45 75 75 44 65 74 15 14 43 70 17 17 71 66 42 16 67 69 67 68 41 72 28 73 40 17 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 651 651 673 702 661 ER2002210032401001 651 654 70
ecoSYSTEM 27 RFFI Key no. 2 6 9 12 13 14 15 17 20 21 22 25 26 27 28 30 32 33 41 42 60 60 62 63 67 68 70 73 74 77 79 81 86 87 97 G.C. part no. 378 814 164 225 164 261 164 282 ARISTON Part No. Description Expansion vessel Condensate pipe Condensate trap (upper) 'O' Ring (condensate trap) Condensate trap (lower) Temperature probe (C.H.
9. TECHNICAL INFORMATION 27 MFFI Certification Category Thermal Capacity C.H.W. min/max Thermal Capacity D.H.W. min/max Power for Hot Water Production min/max Efficiency at Nominal Thermal Capacity (30/50°C) Efficiency at 30% of Nominal Thermal Capacity (47°C of return) Efficiency at 30% of Nominal Thermal Capacity (30°C of return) Gas Consumption after 10 Minutes* (C.H.W.
Flue Pipe Accessories Wall-hung Condensing Gas Boilers with Sealed Combustion Chamber
TABLE OF CONTENTS 1. GENERAL INFORMATION 2. COAXIAL SYSTEMS: 60/100mm 2.1. 2.2. 2.3. 2.4. 3. TWIN PIPE SYSTEMS: 80/80mm 3.1. 3.2. 3.3. 3.4. 3.5. 4.
1. GENERAL INFORMATION Coaxial Systems Twin Pipe Systems S1 = inlet air S2 = outlet fumes FU041Ca 3 The ventilation and exhaust pipes of the boiler must be installed using only original manufacturer accessories. The boiler is approved for coaxial exhaust systems 60/100 mm, 80/125 mm or twin pipe 80/80 mm systems. The boiler is fitted with a collar suitable for the installation of a coaxial 60/100 mm system.
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. 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 ter minal should be located with due regard for the damage or discolouration that might occur on buildings in the vicinity.
2. 2.1. COAXIAL SYSTEMS: 60/100 mm TYPE 1: VERTICAL EXHAUST/SUCTION SYSTEM 706116/706117 For flat roofs: 706069/706070 FU041Ce 706065 / 706067 706115 706111 706113 706112 COAXIAL SYSTEMS - CUTTING THE FLUE PIPE 706111 If the installation requires the flue pipe to be shortened, cut the external ø 100mm pipe and internal ø 60mm pipe, ensuring that the original difference in length between the two (22mm) is kept.
2.2. TYPE 2: HORIZONTAL EXHAUST/SUCTION SYSTEM 706138 COAXIAL SYSTEMS: Ensure that the flue pipe is horizontal, as it is designed with a back-fall so that any condensate returns to the boiler. 706125 (*) 8 88 N OT E : The boiler may be connected directly to a 706138, without using a 706125.
TYPE 3: INDOOR INTAKE AND DISCHARGE IN FLUE (B33) 2.3. 706119 706114 (**) 8 FU041Cg 7 88 **N OT E : If a 706114 is used as an intermediate piece, cut the flue exhaust pipe flush with the air intake pipe.
2.4. TYPE 4: LAS EXHAUST SYSTEM 706118 706114 (**) **N OT E : If a 706114 is used as an intermediate piece, cut the flue exhaust pipe flush with the air intake pipe.
3. twin pipe SYSTEMS: 80/80 mm 3.1.
3.2. TYPE 2: C83 EXHAUST/INTAKE WITH HORIZONTAL TWIN PIPES TWIN PIPE SYSTEMS: Ensure that the exhaust pipe is installed with a 1% to 3% back-fall so that any condensate returns to the boiler.
3.3. TYPE 3: B23 INDOOR INTAKE AND WALL EXHAUST 706133 704113 705758 706784 (Kit of 2) 706133/706134 NOTE: The combustion air is drawn from the opening on top the combustion chamber. Remove the pre-cut section that closes this opening.
3.4. TYPE 4: C53 EXHAUST/INTAKE WITH VARIABLE WIND CONDITIONS 705113 706133/706134 705774 706784 (Kit of 2) 706133/706134 705758 706133/706134 704738 706132 706784 (Kit of 2) NOTE: Cut the pipes (706133 or 706134) to remove the female end of the pipe to be inserted in the condensate discharge “tee” and the end on which the exhaust cap is to inserted.
3.5.
4. LIST OF COMPONENTS Key Code Item Design Leq DESCRIPTION OF COMPONENT PARTS Code 4.1. = Item Part Number = Schematic Drawing of the Components Leq = Length Equivalency of the Component NOTE: The components suitable to be mounted directly on the collar, as the first piece from the boiler, are: • 706108 • 706110 • 706114 • 706116/706117 • 706118 • 706119 • 706125 COAXIAL SYSTEMS ø60/100 mm 706138 Design Standard Horizontal Coaxial Kit 1.
706109 Standard Horizontal Coaxial Kit without Elbow Leq = 1 m* * The end cap is taken into consideration in the value for the maximum length. 706110 1 2 3 4 5 Spacer for Inner Pipe Exhaust Pipe - ø 60 mm Air Intake Pipe - ø 100 mm Wall Cover Plates - ø 100 mm Vent Cap - ø 60/100 mm 90° Coaxial Elbow Leq = 0.8 m 1 2 3 4 5 EPDM coupling Clamp - ø 100 mm 90° Coaxial Elbow - ø 60/100 mm Seal - ø 100 mm Seal - ø 60 mm NOTE: This kit can be installed directly on the collar of the boiler.
706112 Coaxial Extension - 1.0 m Leq = 1 m 1 Coaxial Extension - ø 60/100 mm 2 Seal - ø 100 mm 3 Seal - ø 60 mm 706113 Coaxial Extension - 0.5 m Leq = 0.5 m 1 Coaxial Extension - ø 60/100 mm 2 Seal - ø 100 mm 3 Seal - ø 60 mm 706114 Vertical Coaxial Connection (M/F) Leq = 0.4 m NOTE: This kit can be installed directly on the collar of the boiler. 1 2 3 4 5 6 7 Sec.
706125 1 2 3 4 5 6 Coaxial Stub (ø 60/100 mm) with Condensate Trap Seal - ø 60 mm Seal - ø 100 mm Vertical Connection - ø 60/100 mm O-ring EPDM coupling Clamp - ø 100 mm 706071 Coaxial Vent Cap 705778 Wall Bracket Kit 1 1 Universal Wall Mounting Brackets (80/120 mm) (3 Pieces) 17
706065 Lead Flashing Black Base Cap 1 Cap 2 Flashing NOTE: This part can also be used with 80/125 mm systems 706067 Lead Flashing Red Base Cap 1 Cap 2 Flashing NOTE: This part can also be used with 80/125 mm systems 706069 Vent Cap Base for Flat Roofs (Black) NOTE: This part can also be used with 80/125 mm systems 706070 Vent Cap Base for Flat Roofs (Red) NOTE: This part can also be used with 80/125 mm systems 18
706116 Standard Vertical Flue with Black Terminal MINIMUM DISTANCE 1 Coaxial Flue 2 Screw - ø 3.9x13 (3 Pieces) 3 Seal - ø 80 mm 4 Conical Reducer - ø125/100 mm 5 Conical Reducer - ø 80/60 mm 6 EPDM coupling 7 Clamp - ø 100 mm NOTE: This part can also be used with 80/125 mm systems 706117 Leq = * FASTENING SCREW * The end cap is taken into consideration in the value for the maximum length. Standard Vertical Flue with Red Terminal MINIMUM DISTANCE 1 Coaxial Flue 2 Screw - ø 3.
706118 1 2 3 4 5 6 7 8 9 10 11 EPDM coupling Clamp - ø 100 mm 90° Coaxial Elbow - ø 60/100 mm Seal - ø 100 mm Seal - ø 60 mm Spacer for Inner Pipe Wall Plug With Screw (3 Pieces) Moveable Flange Air Intake Pipe - ø 100 mm Cord Exhaust Pipe - ø 60 mm Horizontal Coaxial Kit NOTE: This kit can be installed directly on the collar of the boiler. Leq = 1 m* * The end cap is taken into consideration in the value for the maximum length.
4.2. TWIN PIPE SYSTEMS ø80/80 mm 706132 Adaptor (ø 60/80 mm) for Twin Pipe Systems Leq = * 3 1 1 2 3 4 Adaptor (ø 60/80mm) for Twin Pipe Systems Clamp (ø 100mm) with Seal and Screws Silicone Lip O-ring - ø 80 mm Restrictor (ø 60 mm) outer diam. of hole ø 42 mm Instruction Sheet 706133 1 2 4 * The adaptor is taken into consideration in the 2 value for the maximum length. Pipe (ø 80 mm) - 1.
705758 90° M/F Elbow (ø 80 mm) Leq = 1.3m 1 1 90° M/F Elbow (ø 80mm) with large radius and lip O-ring Seal 2 Mounted Silicone Lip O-ring - ø 80 mm 705759 2 90° M/F Elbow (ø 80 mm) Leq = 1.
704738 Intake Cap (ø 80 mm) 2 1 Intake Cap 2 Self-tapping screws (2 Pieces) 705113 1 Stainless Steel Exhaust Cap (ø 80 mm) 1 1 Stainless Steel Exhaust Cap - ø 80 mm 2 Self-tapping screws (2 Pieces) 705784 2 Cover Plate (ø 80 mm) 1 1 Silicone Wall Cover Plate - ø 80 mm 705778 Wall Bracket Kit 1 1 Universal Wall Mounting Brackets (80/120 mm) (3 Pieces) 23
705774 Condensate Discharge Tee (ø 80 mm) 2 Leq = 1.3 m 1 1 Condensate Discharge Tee (F/F) (ø 80mm) with Built-in Trap 2 Silicone Lip O-ring - ø 80 mm (2 Pieces) Rubber Hose for Trap (1.
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Merloni TermoSanitari SpA - Italy Commercial subsidiary: MTS (GB) LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Technical Service Hot Line: (01494) 539579 099841764000 Manufacturer:
End User Manual ecoCOMBI 27 MFFI ecoSYSTEM 27 RFFI
Dear Customer, TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. GENERAL INFORMATION CONTROL PANEL OPERATING INSTRUCTIONS USEFUL INFORMATION OPERATING THE TIME SWITH ADDITIONAL FUNCTIONS page. page. 4 page. page. page. 7 page. 3 4 6 8 Thank you for choosing an ARISTON boiler. We guarantee that your boiler is a reliable and technically sound product. This manual provides detailed instructions and recommendations for proper installation, use and maintenance.
TECHNICAL INFORMATION 27 MFFI 27 RFFI GENERAL DATA Thermal Capacity C.H.W. min/max Thermal Capacity D.H.W. min/max Power for Hot Water Production min/max Efficiency at Nominal Thermal Capacity (30/50°C) kW kW kW % 8.9 / 26.7 8.9 / 30 7.8 / 23.6 94.0 8.9 / 26.7 --------------94.
2. CONTROL PANEL 27 MFFI C D E A C D h E h Prog . B Prog . A 27 RFFI m m Day Day H KJ I A. B. C. D. E. H. I. J. K. 3. OPERATING INSTRUCTIONS E UT009A A CD029C H KJ I ON/OFF knob/selector knob for Summer/Winter Domestic Hot Water Temperature Adjustment Knob Central Heating Temperature Adjustment Knob Time Clock (Optional for ecoSYSTEM) Heating System Pressure Gauge Reset Button Multi-function Display “COMFORT” Function L.E.D.
A CD021C H UT011Ad s u m - A Start-up Procedure Before starting the boiler, check the following: - The water pressure on the pressure gauge “E”; - That the gas cock and the inlet for domestic water are open. These models are equipped with electronic ignition which utilises contact ionisation.
A Turning Off the Heating CD021C Installation without an external thermostat: To turn off the heating, turn the “A” selector knob to “ provide domestic hot water. ”. The boiler will still Installation with an external thermostat: To turn off the heating, turn the “A” selector knob to “ ” The boiler will still provide hot water for domestic use. With an external thermostat, there are a number of ways to turn off the heating. For additional information, please consult the relative manual.
Check the system pressure on the pressure gauge “E” and, if it is less than 0.5 bar, try bringing the system pressure up to a mean value of 1.0 bar by opening the water inlet valve. Then reset by turning the boiler off and then back on by pressing the button “H”. Other Shutdown Situations Should a shutdown situation indicated on the display by the following letters and figures occur, E04, E05, E08, E20, E21, E22, E23, E56, E64, E66, E74, E99 contact one of our Authorised Service Centres.
5.3 Entering the switching times You have 20 memory Iocations available. Each switching time takes up one memory location. Keep pressing the “Prog” key until a free memory location is shown in the display “– –:– –”. Programme ON or OFF with the “ ” key: “ ”= OFF; “ ”= ON Enter the hour using “h” Enter the minutes using “m” If a switching command is to be carried out every day (1 2 3 4 5 6 7) then store using the “ ” key, otherwise select the day(s) it is to be carried out by using the “Day” key.
Reading the programmed switching times Pressing the “Prog” key displays the programmed switching times until the first free memory location appears in the display “– – : – –”. If you now press the “Prog” key once again, the number of free memory Iocations will be displayed, e.g. “FR ”. If all memory locations are occupied, the display “FR appears. 6.4Changing the programmed switching times Press the “Prog” key repeatedly until the switching time you want to change is displayed.
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Manufacturer: Merloni TermoSanitari SpA - Italy Commercial subsidiary: MTS (GB) LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Technical Service Hot Line: (01494) 539579 099 84 1739 000
