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Installation
Instructions
Type C Boilers
Condensing
G.C.N: 41-116-03
47-116-17
LEAVE THESE INSTRUCTIONS
WITH THE END-USER
275
Country of destination: GB
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TABLE OF CONTENTS 1. GENERAL INFORMATION This manual is an integral and essential part of the product. It should 1. GENERAL INFORMATION be kept with the appliance so that it can be consulted by the user and 1.1. GENERAL INFORMATION our authorised personnel. 1.3. OVERALL VIEW Please carefully read the instructions and notices about the unit contained in this manual, as they provide important information 2. INSTALLATION regarding the safe installation, use and maintenance of the product. 2.1. REFE
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LEGEND: 1.3. OVERALL VIEW 1. Flue connector 2. Heating flow temperature probe 3. Mixer 24 MFFI 4. Condensate collector 5. Expansion vessel 6. Condensate trap (tube) 7. Condensate trap 8. Diverter valve 9. Main circuit flow switch 10. Domestic hot water temperature probe 11. Control panel 12. Gas valve 13. Domestic hot water flow switch 14. Drain valve 15. Safety valve (3 bar) 16. Secondary heat exchanger 17. Circulation pump with automatic air release valve 18. Heating return temperature probe 1
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2.2. SITING THE APPLIANCE 2.3. OVERALL DIMENSIONS The appliance may be installed in any room or indoor area, although LEGEND: particular attention is drawn to the requirements of the current I.E.E. A = Central Heating Flow (3/4”) Wiring Regulations, and in Scotland, the electrical provisions of the B = Domestic Hot Water Outlet (1/2”) Building Regulations applicable in Scotland, with respect to the C = Gas Inlet (3/4”) installation of the combined appliance in a room containing a bath or D = Dom
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2.4. MINIMUM CLEARANCES FIG. 2.3 In order to allow for access to the interior of the boiler for maintenance purposes, the boiler must be installed in compliance with the clearance requirements indicated in the diagram below. FIG. 2.2 IMPORTANT! 24 MFFI In the event that the power supply cable 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
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2.8. WATER CONNECTIONS FIG. 2.5 VIEW OF THE BOILER CONNECTIONS 24 MFFI Fitting the connection kit to the ecoGENUS 24 RFFI SYSTEM only. It will be noted that the kit has C two connections not required for this boiler i.e. the domestic cold inlet “D” and the domestic A B D E hot water outlet “B” (see fig. 2.4). I Although the cold water main supply must be connected to the isolation valve for the purpose of operating the filling-loop, the isolation valve is NOT connected to the boiler and should b
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expansion and add an additional sealed expansion vessel with The minimum acceptable spacing from the terminal to obstructions adequate capacity. and ventilation openings are specified in Fig. 2.6 MAINS WATER FEED - CENTRAL HEATING: There must be no direct connection to the mains water supply FIG. 2.6 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
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FIG. 2.11 1 2.10. ACCESSORY CONNECTION B To carry out the connection for the roomstat or the outdoor sensor, proceed as follows: D C A 2.10.1. ROOM THERMOSTAT CONNECTION 2 1. Unscrew the screws “A” and rotate the control panel forwards; 2. Insert the connection cable for the thermostat or the outdoor E sensor into the cable gland “B” and open the lid of the control panel after having first unscrewed fastening screws “C”. 3. Insert the connecting cable into the cable clamp “D” shown in the figure
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2.10.2. REMOTE CONTROL CONNECTION 2.10.3. ACCESSORY CONNECTION TERMINAL BLOCK Refer to the illustrations in section 2.10.1. 1. Unscrew the screws “A” and rotate the control panel forwards. 2. Insert the connecting cables of the remote control into the cable gland “B” and open the lid of the control panel after having unscrewed the fastening screws “C”. 3. Remove a blind grommet, make a hole in it and pass the connecting cable of the remote control through it. 4. Connect the cables of the remote
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The P.C.B. is fitted with 2 fuses, on the 2.11. ELECTRICAL DIAGRAM live and the neutral. The fuse holder contains: - 5 x 20mm “3.15A Slow” glass fuses LEGEND: B: Control microprocessor A: JUMPER C: Flame detection jumper (under no circumstances should this When needed, the P.C.B. allows the different options to be selected jumper be moved from the 1-2 position) by means of a wire link. D: Anti-cycling device (RA) The boiler has the following basic arrangement: E: Maximum heating output regulatio
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2.12. WATER CIRCUIT DIAGRAMS C3 = CONNECTION TO ROOMSTAT 1: Input - 1 24 MFFI 2: Input - 2 C4 = TIMER 1: 3 V output 2: Timer ground 3: Timer output 4: Not connected C5 = REMOTE CONTROL (Bus+/Bus-) 1: Input/output-1 2: Input/output-2 C6 = SENSOR CONNECTOR 1: Domestic hot water flow switch (grey) 2: Main circuit flow switch (grey) 3: Under floor heating thermostat (grey) 4: Heating flow sensor (grey) 5: Heating return sensor (grey) 6: Domestic hot water sensor (grey) 7: Not used: jumper 8: Outdoo
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3. COMMISSIONING 24 RFFI SYSTEM 3.1. INITIAL PREPARATION MTS (GB) Limited support the 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 us it, and it is signed by them. Please instruct your customer that they must have their logbook with them whenever they contact a service engineer or us.Preliminary electrical system checks to ensure ele
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3.2. REMOVING THE CASING 3.3. CONTROL PANEL To disassemble the front casing panel, follow these steps: 1. Unscrew the screws “A” (1/4 turn only) and rotate the control panel forwards; 2. Unscrew the screws “B”; 3. Unhook the front panel of the casing by lifting it. To disassemble the side panels, follow these steps: 4. Unscrew the screws “C” (at bottom) fastening the side panels; 5. Lift and unhook the panels. 1 A 3 2 B A. Selector Knob for Summer/Winter/Flue Test Modes B. Domestic Hot Water Tem
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- the gas cock is closed; 3.6. OPERATING PARAMETERS - the electrical connection has been carried out in the correct manner. To allow the air to escape from the system, proceed as The boiler has been designed to allow easy intervention with regard follows: to the operating parameters. - turn on the On/off knob “D” and position the selector knob “A” in the “winter” position. The boiler pump will start up and three consecutive attempts will be made to ignite the burner. After the 3.6.1. CONTROL MOD
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3.6.2. OUTDOOR SENSOR In the case of the use of an outdoor sensor, the microprocessor- controlled P.C.B. calculates the most suitable flow temperature, taking into account the external temperature and the type of system. The microprocessor is capable of doing this because it is possible to establish a link between the external temperature and the flow temperature of the heating system water. This link translates into a "thermal curve". The type of curve should be chosen in correspondence with th
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If the room temperature is too cold during the winter (while in spring the temperature is adequate), it is necessary to enter a steeper curve. To do this, press the reset button for 5 seconds and then press it repeatedly until the letter “FF” appears (using the “+” and “-” keys). In this manner, the curves may be selected from 1 to 5. Alternatively, if the building is too warm in the winter, while the room temperature is adequate in warmer seasons, it is necessary to choose a less steep curve, a
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entered may be viewed in the manner described in section 3.6.3. 3.6.3. SETTINGS DISPLAY (the display shows the value with steps of 10). The boiler is designed to monitor some operating variables and 2. PR - Maximum heating circuit power potentiometer, variable settings by means of the display on the front control panel. Keeping between the maximum allowed by the boiler and the minimum the reset key pressed for over 10 seconds allows access to the (see “TECHNICAL INFORMATION” table). The boiler i
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3.7.4. PUMP OVERRUN 3.7.5. TEST MODE The pump overrun may be varied (after the burner has been turned The P.C.B. allows the boiler to be forced to the maximum or minimum off). To access this function, it is necessary to press the reset button power. for over 5 seconds and then press it repeatedly until the character To make the boiler operate at maximum power (100%: 24kW), it is necessary to turn the selector knob “A” (section 3.3.) and, using a “AA” appears on the left-hand display. light press
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DISPLAY CAUSE temperature goes below -3°C, it turns off when the external temperatures raises above -1°C. EE0033 Flow temperature over 100°C while boiler is not in - Continuous operation of the pump: select by means of jumper 4 operation (stand-by) (see paragraph 3.6.6.). NOTE: In all cases, the circulation takes place in the heating system. EE5566 Heating flow temperature probe in open circuit The anti-frost device activates only when (with the boiler operating EE6666 Heating flow temperature p
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4. GAS ADJUSTMENTS NOTE: the values refer to the upper calorific power 4.1. OVERALL VIEW Type of appliance Natural Gas LPG LPG LL E Marking on the label of characteristics Yellow adhesive label: Further indications Yellow adhesive label: Yellow adhesive label: calibrated for LPG calibrated for 'L' type calibrated for 'H' type methane methane Wo=24.3 Kw/m3 (from 20.2 to 24.3 Wo=11.5 Kw/m3 Wo=14.1 Kw/m3 kWh/m3) (from 9.5 to 12.4 kWh/m) (from 11.4 to 15.2 kWh/m3) 50mbar Factory setting for the Wobb
