Installation Instructions Type C Boilers G.C.
TABLE OF CONTENTS 1. GENERAL INFORMATION 1.1 GENERAL INSTRUCTIONS 1.2 OVERALL VIEW 2. INSTALLATION 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 REFERENCE STANDARDS SITING THE APPLIANCE OVERALL DIMENSIONS CLEARANCES MOUNTING THE APPLIANCE ELECTRICAL CONNECTION GAS CONNECTION WATER CONNECTIONS FLUE CONNECTION ROOM THERMOSTAT CONNECTION ELECTRICAL/SYSTEM DIAGRAMS WATER CIRCUIT DIAGRAM 3. COMMISSIONING 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.
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 infor mation regarding the safe installation, use and maintenance of the product. For operating instructions please consult the separate Users Manual. 1.
5 - If called for by point. 3, dismantling and cleaning of the combustion chamber. 6 - If called for by point. 4, dismantling and cleaning of the burner jets. 7 - Visual check of the primary heat exchanger: - check for overheating in the blade assembly; - clean the exhaust fan if needed. 8 - Adjustment of the flow rate of the gas: flow rate for lighting, partial load and full load.
2. INSTALLATION The technical information and instructions provided herein below are intended for the installer so that the unit may be installed correctly and safely. 2.1 REFERENCE STANDARDS 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 .
2.3 OVERALL DIMENSIONS 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”) 2.4 CLEARANCES In order to allow for access to the interior of the boiler for maintenance pur poses, the boiler must be installed in compliance with the minimum clearances indicated in FIG. 2.2 2.5 FIG. 2.
Note: The diagrams for the electrical system are indicated in section 2.11. Warning, this appliance must be earthed. External wiring to the appliance must be carried out by a competent person and be in accordance with the current I.E.E. Regulations and applicable local regulations. The microCombi is supplied for connection to a 230 V~ 50 Hz supply. The supply must be fused at 3 A.
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.
2.9 FLUE SYSTEM 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.
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 FIG. 2.8); 2. Insert the elbow into the air intake until it reaches the lower end. (There is no need to use gaskets or sealing compounds).
TABLE 2.1 23 MFFI Exhaust Type Coaxial Systems ø 60/100 Restrictor ø 43 mm NO Restrictor Maximum Extension Exhaust/Air L min = 0.5 m L max = 2 m L min = 2 m L max = 4 m L=4m Restrictor ø 43 mm NO Restrictor Maximum Extension Exhaust/Air Risk of Condensation Forming Piping insulated Piping not insulated ø 43 restrictor NO ø 43 restrictor NO C12 (xx) C32 (xx) NONE NONE NONE NONE C42 (xx) Exhaust Type 43 m C12 (xy) C32 (xy) Twin Pipe Systems ø 80/80 L max = 11.
2.10 ROOM THERMOSTAT CONNECTION To connect a room thermostat, it is necessary to: 1. - Open the control panel as indicated in section 3.3. 2.- Remove the link “A” from the terminal block on the reverse of the control panel. 3. - Insert the thermostat cable through the cable grommet and fasten it by means of the cable-clamp provided. 4. - Then connect the thermostat wires to the terminal block. 5.- If a remote time clock is to be fitted, disconnect the integral time clock from the P.C.B. 6.
FIG. 2.12 SE016A FIG. 2.
2.12 WATER CIRCUIT DIAGRAM FIG. 2.14 SI016A LEGEND: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. A. B. C. D. E. 14 Fan “Twin-pass” Heat Exchanger Domestic Hot Water Temperature Probe Burner Detection Electrode Ignition Electrodes Gas Valve Pump pressure switch Safety Valve D.H.W. inlet filter D.H.W.
3. COMMISSIONING 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 use 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 electrical safety must be carried out by a competent person i.
3.2 CONTROL PANEL LEGEND: ABCDEFGHI J K- 3.3 On/Off button Central heating temperature adjustment Domestic hot water temperature adjustment Heating system pressure gauge Time clock Central heating selector Central heating L.E.D. (green) Fume sensor L.E.D. (yellow) Overheat and/or ignition failure (lockout) L.E.D. (red) Ignition failure (lockout) and/or overheat reset button ON/OFF L.E.D. (green) REMOVING THE FRONT PANEL 1 FIG. 3.
3.4. INITIAL START-UP 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.
3.6 The flue connector has two apertures, readings can be COMBUSTION ANALYSIS taken for the temperature of the combustion by-products and of the combustion air, as well as of the concentrations of O2 and CO2, 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 section 5).
- the gas is turned on. 6 - 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 is indicated by the illumination of the yellow L.E.D. “H” for a period of about 15 minutes.
4. GAS ADJUSTMENTS Methane Gas G20 Liquid Butane Gas G30 Liquid Propane Gas G31 MJ/m3h mbar mbar 45.67 20 17 80.58 29 20 80.58 37 25 mm m3/h Kg/h 1.30 2.78 ---- 0.77 ---2.02 0.77 ---2.00 mbar 11.0 - 2.0 27.7 - 6.0 35.5 - 7.3 CATEGORY II2H3+ Lower Wobbe Index (15°C;1013mbar) Nominal Delivery Pressure Minimum Delivery Pressure 23 MFFI Main Burner: n. 12 jets (ø) Consumption (15°C; 1013mbar) Consumption (15°C; 1013mbar) Gas Burner Pressure max - min [1 mbar = 10,197 mmc.a.
5. MAINTENANCE It is recommended that the following inspections be carried out on the boiler 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. 4 - Visual check of the combustion process or analysis of combustion byproducts (see section 3.6) and cleaning of the burner if needed. 5 - If called for by point. 3, dismantling and cleaning of the combustion chamber.
240V MAINS INPUT (3 AMP) 1 6 3 8 2 2 T6360B ROOM THERMOSTAT ZONE 2 L 1 N 2 E 3 22 1 Randall 102/102 E Link 3-6 8 E E E E E 4 4 N 7 5 N N N 3 3 L 6 6 L L L L 10 10 Randall 3020 P and 3060 ZONE 2 4 Randall 922, 972 Link L-2-5 2 6 E E HTG ON 1 N N N N 2 2 1 L L L L 1 1 2 2 L L L L If a room thermostat is not required on Zone 1, insert a link between 4 + 5 on the junction box.
1 2 C/P Cylinder thermostat Thermal cut-out 1 C/P Not used 23 Sangamo 410 Form 1 Link 3-6 8 8 1 2 E E E E E 4 4 N 7 5 N N N N 3 3 L 6 6 L L L L L 3 3 4 Randall 922, 972 Link L-2-5 Randall 3020 P and 3060 E E E HTG ON E N N N N 2 2 1 1 N N N • 3 L L L L 1 1 2 2 L L L L PROGRAMMER 2 6 4 10 3 Towerchron MP Link 1-4/6-11 10 ACL LS522, LS722 6 Towerchron FP Link 1-5/4-7-9 4 3 HW ON 6 Sunvic DHP 2201 1 1 4 Towerchron 2000 7 6 S
7. TECHNICAL INFORMATION 23 MFFI CE Certification Heat Input Heat Output Efficiency of Nominal Heat Input Efficiency at 30% of Nominal Heat Input Heat Loss to the Casing (∆T=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.
