installation and servicing mini HE Your Ideal installation and servicing guide For details of document amendments, refer to page 3 Model Serial No. C24,C28,C32 For users guide see reverse of book When replacing any part of this appliance, use only spare parts that you can be assured conform to safety and performance specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Boilers 17962.1155.
mini HE --- Installation & Servicing
DOCUMENT AMENDMENTS Relevant Installation changes implemented in this book from book reference.................17962.1155.
GENERAL Table 1 --- Boiler Data mini HE C24 Gas supply type & connection mini HE C28 mini HE C32 II2H3P G20 20mbar, G31 37mbar, 22 mm copper Inlet / Outlet connection --- Domestic Hot Water 15 mm copper Flow & return connection --- Central Heating 22 mm copper Flue terminal diameter mm (in.) Average Flue Temp. --- Mass Flow Rate Deg C | g/s Max working pressure (sealed system) bar (lb/in2) 3.0 (43.5) Max DHW water inlet pressure bar (lb/in2) 10.0 (145.
GENERAL mini HE CONTENTS Boiler size G.C. appliance No. (Benchmark No.) PI No.
GENERAL 1 BOILER WATER CONNECTION Wall mounting Plate 31 400 50 O.D. mm CH flow 22 CH return 22 Gas inlet 22 DHW cold inlet 15 DHW hot outlet 15 257 35 16 700 803 Pipe size 2 65 (2 9/16”) CH return 64 (2 1/2”) DHW cold inlet 52 (2”) Gas inlet DHW hot outlet CH flow 83 (3 1/4”) 65 (2 9/16”) Condensate drain connection area BOILER CLEARANCES Side and Rear Flue All dimensions in mm (in.) The following minimum clearances must be maintained for operation and servicing.
INTRODUCTION GENERAL mini HE C24, mini HE C28 and mini HE C32 are wall mounted, low water content, balanced flue, condensing combination gas boilers. Central heating (CH) output and domestic hot water (DHW) output are both fully modulating: --- between 10.2 (34 936) and 24.6* (83 973) kW (btu/h) for model mini HE C24; --- between 12.1 (41 284) and 28.3* (96 488) kW (btu/h) for model mini HE C28. --- between 15.0 (51 180) and 32.2* (109 866) kW (btu/h) for model mini HE C32.
The Electricity at Work Regulations, 1989. GENERAL The manufacturers notes must NOT be taken, in any way, as overriding statutory obligations. IMPORTANT These appliances are CE certificated for safety and performance. It is, therefore, important that no external control devices, e.g. flue dampers, economisers etc., are directly connected to these appliances unless covered by these Installation and Servicing Instructions or as otherwise recommended by Caradon Ideal Ltd. in writing.
GENERAL WATER CIRCULATION SYSTEM 25 mm ( 1”) *** 5 From vertical drain pipes or soil pipes* 6 From an internal or external corner or to a boundary along side the terminal 25 mm ( 1”) *** 7 Above adjacent ground, roof or balcony level 300 mm (12”) 8 From a surface or a boundary facing the terminal. 600 mm (24”) 9 From a terminal facing a terminal 1200 mm (48”) 10 From an opening in a car port (e.g.
GENERAL Domestic Hot Water In hard water areas where mains water can exceed 200ppm Total Hardness (as defined by BS 7593:2006 Table 2) a scale reducing device should be fitted into the boiler cold supply within the requirements of the local water company. The use of artificially softened water, however, is NOT permitted.
GENERAL Table 6 mini HE C32 Table 5 mini HE C24, mini HE C28 System charge pressure (bar) 0.5 0.7 1.0 System charge pressure (bar) 0.5 0.7 Safety valve setting 3.0 Safety valve setting 3.0 Vessel pre ---charge pressure (bar) 0.7 Vessel pre ---charge pressure (bar) 0.7 System volume (litres) Volume of expansion vessel in addition to 6 litre unit fitted to boiler System volume (litres) 1.
GENERAL 5 BOILER CONTROL INTERLOCKS Thermostatic radiator valves. Caradon Ideal Ltd. support the recommendations made by leading manufacturers of domestic heating controls that heating systems utilising full thermostatic radiator valve control of temperature in individual rooms should also be fitted with a room thermostat controlling the temperature in a space served by radiators not fitted with such a valve as stated in BS5449.
GENERAL 7 BOILER WATER CIRCUIT DIAGRAM 35 34 24 25 23 21 22 20 27 1 19 33 28 18 29 16 17 36 26 14 37 30 15 31 5 12 2 10 13 32 8 6 11 1 2 3 4 5 6 9 7 Domestic hot water (DHW) heat exchanger Domestic hot water (DHW) flow switch Domestic hot water (DHW) outlet pipe Domestic cold water inlet cock Three ---way diverter valve Main circuit drainage cock mini HE --- Installation & Servicing 4 3 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
8 BOILER ASSEMBLY --Exploded View 39 40 1 2 38 3 37 4 36 5 35 6 7 34 33 32 8 31 9 10 11 30 29 12 26 13 28 14 15 27 25 P5 INSTALLATION INSTALLATION 24 23 22 1 Air pressure switch 2 3 4 5 Recuperator Condensate trap Overheat thermostat Condensing to main heat exchanger connection pipe 6 7 8 Primary heat exchanger Inner case cover Flame detection electrode 9 10 11 12 Ignition electrodes Heat exchanger return pipe Auto air vent Main circuit drainage cock 13 Pump 14 21 14 1
INSTALLATION UNPACKING I Turret---air pipe gasket The boiler is supplied fully assembled in one pack A, together with a standard flue assembly for lengths up to 960 mm (37” 3/4), rear or side flue outlet, in pack B. J Flue pipe gasket K Boiler ---turret gasket L Flue turret Unpack and check the contents. M Self tapping screws 4,8x13 --- 4 off N Wall finishing gasket --- internal (plastic) Pack A contents INSTALLATION 9 O Wall finishing gasket --- external (rubber) A The boiler.
INSTALLATION INSTALLATION 11 FITTING THE FLUE SYSTEM The minimum and maximum equivalent length for co---axial pipes ø 60 ---100 and ø 80 ---125 mm are given in Table 7 for mini HE C24 and mini HE C28 and in Table 8 for mini HE C32 . Cut the flue duct at the same level of the air duct edge. Cut this end The minimum and maximum equivalent length for ø 80 mm twin pipe systems are given in Table 9 for mini HE C24 and mini HE C28 and in Table 10 for mini HE C32.
For the correct use of the restrictors with twin pipes refer to the following diagram for the models mini HE C24, and mini HE C28. Flue exhaust ”a” 32 30 Cutting lengths of flue and air ducts Measure the wall thickness and, when using a side outlet, the gap between the inner wall and the boiler side casing. Use the following chart to calculate the cutting lengths of both flue and air ducts. Mark the air duct and flue duct making reference on the groove.
INSTALLATION INSTALLATION 13 WALL MOUNTING TEMPLATE (rear flue) IMPORTANT Detailed installation steps are given directly on the wall mounting template 1 2 3 Tape the template into the selected position. Ensure squareness by hanging a plumbline. Mark onto the wall the following: 4 a. the wall mounting plate screw positions b. the position of the flue duct.
INSTALLATION CUTTING THE FLUE INSTALLATION 16 Notes. A If using the extension ducts go to Frame 17. B If stand ---off frame is used it is essential this is taken into consideration when marking the flue (see Frame 11). 1 Measure and note the wall thickness. 2 For side flues measure and note the gap between the casing and wall. 3 From the table in Frame 11, determine the flue length required. Mark and cut both outer and inner tube. Ensure the support spring clip is in position to facilitate cutting.
INSTALLATION INSTALLATION 18 FITTING THE OPTIONAL ROOF FLUE KIT (Flat or Pitched) If the offset vertical option is used an elbow Kit is required. For a full accessories list refer to Frame 9, Optional Extras. Note. A flat or pitched roof flashing plate (not supplied) is required before proceeding with the installation of this kit. This kit is suitable for both flat and pitched roof terminations, using a concentric flue to run vertically from the top of the boiler and terminating above roof level.
INSTALLATION FLUE TERMINAL POSITION INSTALLATION 20 The terminal should be positioned so that products of combustion can safely disperse at all times. Pluming may occur at the termination so, where possible, terminal positions where this could cause a nuisance should be avoided. * Minimum dimensions are shown below. 610 mm min. 610 mm min. 21 Terminal Position Minimum Dimension Directly below an opening, air brick, windows, etc.
ASSEMBLING THE ROOF FLUE KIT F 2 Determine the correct height that the flue should terminate above the roof. If after calculating or measuring the overall flue height from the top of the boiler, it is necessary to cut both pipes of assembly A, then ensure they are cut equally leaving the inner flue tube longer than the outer air tube as supplied. (Refer to No. 6 below) 1 2 3 4 5 7 8 3 Ø A Ensure the flue seal collar B is located onto the flue assembly A.
INSTALLATION FITTING THE WALL MOUNTING PLATE INSTALLATION 23 Refer to frame 25 for service connections. Fit the wall mounting plate Directly to the wall F Offer up wall mounting plate. F Screw through the fixing holes using 3 off no. 14x2” screws (not provided). F Check alignment with spirit level. F Tighten screws. 24 MOUNTING THE BOILER Lift the boiler onto the wall mounting plate locating the bar at the rear of the back panel assembly into the bracket.
INSTALLATION INSTALLATION 26 CONNECTING THE FLUE TO THE BOILER 1 2 Note. Before fitting the flue turret fill the condensate trap or siphon trap within the boiler by pouring a cupful of water into the flue outlet. Take care to ensure that the water is only poured into the flue outlet, and does not spill into the boiler casing. 1 2 3 4 5 6 27 Insert the flue assembly through the prepared hole in the wall (ensuring the 145mm minimum dimension is maintained).
29 ELECTRICAL CONNECTIONS For Ireland reference should be made to the current ETCI rules for electrical installations. Warning. This appliance MUST be efficiently earthed A mains supply of 230 V ~ 50 Hz is required. Mains wiring should be 3 core PVC insulated flexible cord NOT LESS than 0.75 mm2 (24 x 0.2mm) and to BS. 6500, Table 16. (0.5mm2 flex is not acceptable --- for mechanical, not electrical reasons.
31 PICTORIAL WIRING mini HE C24, mini HE C28, mini HE C32 Wiring diagram for boiler equiped with electronic control p.c.b.
INSTALLATION FUNCTIONAL FLOW DIAGRAM mini HE C24, mini HE C28, mini HE C32 INSTALLATION 32 L CH flow switch bk bn Gas Valve (on--- off operators) bu bk Fan bu gy 29 1 bk Safety thermostat bk wh Flue temperature probe NTC wh 28 wh 34 rd 32 bu 33 11 35 gy 36 ye 8 bu 7 bn 6 bk Electronic 37 rd control pcb 38 rd 25 30 bu 26 31 bu 9 bn 12 13 Gas Valve (modulation coil) Three way div. valve 14 23 Air pressure switch gy bk DHW flow switch 27 DHW temp.
INSTALLATION INSTALLATION 33 EXTERNAL ELECTRICAL CONTROLS Wiring external to the boiler MUST be in accordance with the current I.E.E. (BS.7671) Wiring Regulations. thermostat should be wired into the system. To maintain frost protection with the programmer selector switches set to OFF, all the controls MUST be left in the running position. For Ireland reference should be made to the current ETCI rules for electrical installations.
INSTALLATION INITIAL LIGHTING A B C D E F INSTALLATION 34 G Central Heating flow Domestic hot water outlet Gas inlet Domestic cold water inlet Central Heating return Legend A Appiance On lamps B Domestic hot water temperature control C Main switch and radiator temperature control D Boiler reset button E Lock ---out signal lamp F Programmer (optional) G System pressure and temperature gauge IMPORTANT Before lighting the boiler you should note especially that: 1 Check that all the drain cocks are
INSTALLATION INSTALLATION 35 TO ADJUST PRESSURES (burner pressure). By rotating clockwise the pressure increases. Nomenclature of the parts on the gas valve 10 Turn the boiler off and re ---connect the wire to the modulating operator. H Modulation operator’s electric connectors I Minimum gas pressure adjustment J Maximum gas pressure adjustment 11 Start the boiler and check again the maximum gas pressure setting.
Where: Lamp ON Lamp OFF A B C D E 12 Press and hold the reset button D for about 10 seconds until the lock ---out signal lamp E blinks. 13 Press the reset button D repeatedly (4 times) until the lamps A give the follow indication: 36 ANTI CYCLING SETTING It is possible to set the minimum delay time that must pass between two ignitions of the burner in c.h. function mode. 1 14 Turn the DHW temperature control B to the minimum (fully counterclockwise) and then on the position noted on step 10.
INSTALLATION INSTALLATION 38 GENERAL CHECKS Make the following checks for correct operation: 1 Hot water. a. Fully open all DHW taps in turn and ensure that water flows freely from them. b. Close all taps except the furthest one from the boiler and check that the boiler is firing at maximum rate. c. Ensure that DHW temperature of approximately 35 ûC rise is obtained at the tap. This corresponds to a flow rate of about litres/min (gpm) models 10.1 (2.2) mini HE C24 11.7 (2.6) mini HE C28 13.1 (2.
39 1 GAS CONVERSION Gas type Setting No. Check that the gas cock fitted under the boiler is turned off and the appliance is switched off at the mains isolating spur. NATURAL GAS L.P.G. 4 1 2 Remove the front panel of the case. 3 Take off the lid of the sealed chamber. 4 Take the front panel of the combustion chamber off and remove the burner as explained in frame 43. 5 Carry out the conversion for the type of gas, replacing the burner injectors correctly as explained in frame 51.
SERVICING SERVICING 41 SERVICING SCHEDULE To ensure the continued safe and efficient operation of the appliance it is recommended that it is checked at regular intervals and serviced as necessary. The frequency of servicing will depend upon the installation condition and usage but should be carried out at least annually. It is the law that any service work must be carried out by a registered CORGI installer. In IE, servicing work must be carried out by a competent person.
42 1 2 REMOVAL OF OUTER AND INNER CASING 5 Remove the screws C and remove the boiler inner casing. Turn off the gas supply at the gas service cock and disconnect the electricity supply. Remove the screws A and lift off the boiler front panel. C A 3 4 C Loosen the screws B. Bring the base of the panels away from the boiler and lift them, freeing them from the top hooks.
SERVICING SERVICING 43 1 2 3 BURNER REMOVAL AND CLEANING 6 Disconnect the electrical supply. Remove outer and inner casing (refer to frame 42). Undo the screws A and remove the fan holder bracket B and the combustion chamber panel C. Remove the screws D and the plate E. 4 Undo the four screws F placed at the right and left sides of the burner and extract it. B F A 7 8 9 Brush off any deposits that may have collected on the burner, ensuring that the flame ports are unobstructed.
47 FAN AND VENTURI REMOVAL AND CLEANING 7 Check that the impeller runs freely. Clean with a soft brush or renew as necessary. Refer to frame 58 for replacement. 1 Disconnect the electrical supply. Note: Always take care when handling the fan, in order to preserve the balance of the impeller. 2 Remove outer and inner casing. 8 3 Disconnect the connectors A and the earth connection B. 4 Disconnect the pipe which connects the venturi device to the air pressure switch.
SERVICING SERVICING REPLACEMENT OF COMPONENTS 48 GENERAL THE BOILER MUST NOT BE OPERATED IF THE INNER CASE COVER IS NOT FITTED. When replacing any component: 1 2 Isolate the electricity supply at the switched spur. N.B. Turning the boiler “ON/OFF” switch does not isolate the live supply to the boiler. Turn off the gas supply. IMPORTANT. When work is complete the inner case cover must be correctly fitted, ensuring that a good seal is made.
52 1 2 OVERHEAT THERMOSTAT REPLACEMENT 3 Disconnect the wiring C . 4 Remove the spring D which holds the overheat thermostat on the pipe of the primary heat exchanger and remove it. Remove outer and inner casing (refer to frame 42). Remove the screws A and the plate B. C D B A 53 1 2 3 4 FLUE TEMPERATURE PROBE REPLACEMENT Re ---assemble in reverse order. 6 Apply an adequate quantity of heat conducting compound between the pipe and the thermostat.
SERVICING SERVICING 55 GAS VALVE REPLACEMENT Check 1 Disconnect the electrical supply. 2 Remove the front casing panel. 3 Disconnect the connector A and check the electrical resistance of the coil referring to the following diagram 8 9 10 11 12 Disconnect the earth wiring from the gas valve. Unscrew the connectors C and remove the pipe D Unscrew the inlet connector. Unscrew the screws E and remove the valve.
58 1 2 3 4 FAN REPLACEMENT Disconnect the electrical supply. Remove outer and inner casing. Disconnect the connectors A and the earth connection B. Disconnect the pipe which connects the venturi device to the air pressure switch. Unscrew the screw C and remove the fan holder bracket D. 5 A 6 7 Remove the fan by sliding it towards left (see the arrow). Re ---assemble in reverse order. Note: Always take care when handling the fan, in order to preserve the balance of the impeller.
SERVICING SERVICING 61 1 2 3 4 5 6 PUMP REPLACEMENT COMPLETE Disconnect the electrical supply. Remove the front and right hand side casing panels (refer to frame 42). Release system pressure by opening the main circuit drainage cock. Do not release CH pressure using the pressure relief valve. It may cause debris within the system to foul the valve. Disconnect the connector A. Loosen the connector B. Remove the fork C and the pipe D.
SERVICING ELECTRONIC CONTROL/IGNITION PCB REPLACEMENT 1 Disconnect the electrical supply. 2 Gain access to the controls area by removing the boiler front panel and pulling the control panel (refer to frame 30). 3 Remove the screws A and remove the service panel 4 To gain access to the electronic control/ignition p.c.b. remove the screws B and remove the control panel lid. SERVICING 62 B 8 Unscrew the four screws that hold the electronic control/ignition p.c.b. on to the control panel.
SERVICING SERVICING If required, to check the PCB is set correctly for this boiler type the following procedure should be followed. Boiler mode setting 17 Remove the front panel of the case. 18 Position the control knob C as in the figure below and disconnect the C.h. temperature probe. 22 Turn the knob B clockwise and then to minimum position. By turning the knob B, the lock ---out signal lamp E blinks quickly (2 per second) indicating that the setting has changed and must be memorized.
63 CH FLOW SWITCH REPLACEMENT 1 Disconnect the electrical supply. 2 Remove the front casing panel. 3 Remove the fork A. 4 Open the box B and disconnect the switch. 5 Re ---assemble in reverse order. Refer to the following illustration for the correct wiring connectors on the switch C N.O. do not use A Looking through the switch box B it is possible to verify the position of the spindle C B C Boiler OFF 64 1 2 3 4 5 6 7 CH FLOW SWITCH MEMBRANE REPLACEMENT Disconnect the electrical supply.
SERVICING SERVICING 65 1 2 3 4 DHW FLOW SWITCH REPLACEMENT Disconnect the electrical supply. Remove the front panel of the case (refer to frame 42). Disconnect the connector A and remove the switch B by delicately levering it upwards with a screwdriver. Replace the switch and re ---assemble in reverse order B A 66 1 2 3 4 5 6 DHW FILTER AND FLOW LIMITER REPLACEMENT Disconnect the electrical supply. Remove the front panel of the case and empty the DHW circuit. Remove the flow switch A (see frame 65).
SERVICING PRIMARY HEAT EXCHANGER REPLACEMENT 1 Disconnect the electrical supply. 2 Remove outer and inner casing as explained in frame 42. 3 Close off the isolating cocks of the CH circuit at the bottom of the boiler. 4 Release system pressure by opening the main circuit drainage cock. Do not release CH pressure using the pressure relief valve. It may cause debris within the system to foul the valve.
SERVICING SERVICING 69 1 2 3 4 DIVERTER VALVE ACTUATOR REPLACEMENT Disconnect the electrical supply. Remove front casing panel (refer to frame 42).. Disconnect the connectors A. Remove the fixing spring B and remove the actuator C. Re ---assemble in reverse order. When reassembling the actuator, refer to the wiring diagram in frame 31 for the correct wiring connection. C 70 B A DIVERTER VALVE INTERNAL PARTS REPLACEMENT 1 Disconnect the electrical supply.
71 1 2 3 4 5 6 7 DHW HEAT EXCHANGER REPLACEMENT Disconnect the electrical supply. Remove outer casing (refer to frame 42). Close the isolating cocks of the CH circuit and DHW supply at the bottom of the boiler. Release system pressure by opening the main circuit drainage cock. Do not release CH pressure using the pressure relief valve. It may cause debris within the system to foul the valve. Release the pressure of the DHW circuit by opening a hot tap. Remove the diverter valve actuator (see frame 69).
SERVICING SERVICING 73 1 2 3 CONDENSATE TRAP REPLACEMENT Disconnect the electrical supply Remove front and right hand casing panels (refer to frame 42). Disconnect the trap from the draining pipe. 10 Reassemble carrying out the removal operations in reverse order. To clean the condensate trap and drain 4 5 6 Unscrew the bottom cover and remove the inner fitting and ball. Check and clean all parts thoroughly. Check and clean the discharge pipe from the boiler to the drain.
75 ELECTRONIC CONTROL/IGNITION P.C.B. OPTICAL INFORMATION The following table gives a summary of the relationship between each of the possible lamp combinations and their meaning. The electronic control/ignition p.c.b. is provided with three lamps (L.E.D. indicators) A, that give optical information during the normal operation of the boiler or for service and fault fiinding purpose. Normally operating boiler C.h.
FAULT FINDING FAULT FINDING 77 FAULT FINDING With a fast pulse showing on LED 1 the boiler will continue to operate with a reduced performance in some fault conditions. WARNING Before commencing fault finding please check the following: Care must be taken when conducting fault finding tests to guard against the risk of electric shock. Are all wiring connections OK ? Are the function selector settings correct (Refer to frame 35, 36 and 39) 230 Vac is the nominal UK supply voltage.
FAULT FINDING FAULT FINDING Continued from page 52 of fault finding no With the boiler and heating circuit warm does the burner pressure reduce if the heating temperature setting is reduced to minimum? Is there between 0V dc and 16V dc at the connections on the modulating coil? (0=min, 16=max) yes Is the burner pressure within min and max value* with the boiler running? yes no no Is the continuity of the modulator harness O.K? Repair or replace faulty wiring yes no Adjust burner pressure.
FAULT FINDING FAULT FINDING Continued from page 52 of fault finding. Is there at least one of the LEDs flashing? no no no Is LED 1 flashing with LED 2 on ? yes yes yes no Check resistance of CH temperature probe. Is it between 12 kΩ and 1.5 kΩ ? yes Repair or replace faulty wiring Continued on page 55 of fault finding Are LED2 flashing and LED 3 on? Are LED2 and LED 3 flashing? no Replace faulty thermistor Check resistance of DHW temperature probe. Is it between 12 kΩ and 1.
Are LED 1 and LED 3 flashing with LED 2 on, plus lockout LED on the fascia on? Continued from page 54 of fault finding yes FAULT FINDING FAULT FINDING Continued on page 57 of fault finding no no Rectify gas supply fault. Is there > 17 mbar at the gas valve inlet? yes yes Press reset button. Is there 230V across the Brown and Blue gas valve connection during ignition? Is there 230V at Brown and Blue at gas valve harness connector on PCB? no Is fuse continuity O.K.
FAULT FINDING FAULT FINDING Continued from page 55 of fault finding Is the burner light on? no Can the minimum burner pressure be achieved ? (Pressure values are given in Table 2 on page 4) no Adjust the burner minimum pressure refer to frame 35 no Check the condensate trap and discharge pipework for cleanliness yes Is the condense freely discharged through the condensate trap and pipework? yes yes Replace faulty PCB no Does the burner remain alight more than 10 seconds? yes Is the position of t
Continued from page 55 of fault finding Is LED 1 and LED 2 flashing and LED 3 on? no Is LED 1 and LED 2 on and LED 3 flashing? no Is LED 1 on and LED 2 flashing? Is LED 1 on and LED 2 and LED 3 flashing? yes yes yes no no no Allow boiler to cool and press re ---set no Is the continuity of the flue temperature probe harness OK? Replace the probe and press the reset button Is the harness in short circuit? Is there 230V at the fan connections? no Replace faulty gas valve no Replace faulty wi
FAULT FINDING FAULT FINDING Continued from page 53 no no Is there max burner pressure* when the boiler first lights? Is there a temperature rise of 35 ûC across the DHW circuit at: 10.0 L/min 24 kW model 11.7 L/min 28 kW model 13.1 L/min 32 kW model no Is there > 17 mbar gas pressure at the gas inlet? Rectify gas supply fault. yes yes yes Adjust the max setting on the gas valve. Refer to frame 35. Check that max burner pressure* can be achieved.
The following are parts commonly required as replacements, due to damage or expendability. The failure or absence is likely to affect the safety and/or performance of this appliance. The list is extracted from the British Gas List of Parts which contains all available spare parts. The full list is held by British Gas, Caradon Plumbing Ltd. distributors and merchants. When ordering spares please quote: 1 2 3 4 5 Boiler model (see Data Plate) Appliance G.C.
31 H07---858 Control panel door 1 173988 32 H07---882 Front case panel 1 173989 2 1 3 4 5 6 8 9 P5 7 10 11 12 13 14 15 16 20 17 18 19 22 21 25 26 23 27 28 24 29 30 30 60 31 32 mini HE --- Installation & Servicing
INSTALLER NOTIFICATION GUIDELINES In addition a change to Building Regulations (England and Wales) requires the installer to notify when installing a heating appliance, as from 1st April 2005.
BENCHMARK No. GAS BOILER COMMISSIONING CHECKLIST BOILER SERIAL No. CONTROLS NOTIFICATION No.
SERVICE INTERVAL RECORD It is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record Below. Service Provider. Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the boiler manufacturer’s instructions.
Technical Training The Ideal Boilers Technical Training Centre offers a series of first class training courses for domestic, commercial and industrial heating installers engineers and system specifiers. For details of courses please ring: . . . . . . . 01482 498 432 the code of practice for the installation commissioning & servicing of central heating systems Ideal boilers P.O. Box 103, National Ave, Kingston upon Hull HU5 4JN. Telephone: 01482 492 251 Fax: 01482 448 858. Registration No.
Points for Boiler User Note. In line with our current warranty policy we would ask that you check through the following guide to identify any problems external to the boiler prior to requesting a service engineers visit. Should the problem be found to be other than with the appliance we reserve the right to levy a charge for the visit, or for any pre ---arranged visit where access is not gained by the engineer.
When you do not expect to use the boiler for a long period: The output temperature of CH water is adjustable from a minimum of about 38°C to a maximum of about 85°C by turning the knob C. For long periods CONTROL OF CH TEMPERATURE Approx CH flow temperatures for the boiler thermostat settings: Minimum (38 ûC) C Maximum (85 ûC) If necessary, empty the water circuits. 3 Shut off the gas supply cock and the valves for the water circuits fitted under the boiler. 2 Switch the electricity supply off.
mini HE mini HE C24 mini HE C28 mini HE C32 BOILER CONTROLS G.C. appliance No. 47 ---348 ---38 G.C. appliance No. 47 ---348 ---39 G.C. appliance No. 47 ---348 ---41 Destination countries: GB, IE INTRODUCTION mini HE are wall mounted, room sealed, condensing, low water content combination gas boilers featuring full sequence automatic spark ignition and fan assisted combustion.
mini HE Your Ideal users guide C24,C28,C32 For installation and servicing guide see reverse of book When replacing any part of this appliance, use only spare parts that you can be assured conform to safety and performance specification that we require.