IDEAL INDUSTRIES C24 Boiler User Manual
Contents
1. reference should be made to the Installation Instructions or consult a CORGI registered installer CONTROL OF CH TEMPERATURE 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 Approx CH flow temperatures for the boiler thermostat settings WA Minimum 38 C C 5 Saal a Maximum 85 C C CONTROL OF DHW TEMPERATURE The temperature of the DHW leaving the boiler can be varied from a minimum of about 35 C to a maximum of about 55 C within the power limits of the appliance by turning the temperature control knob B Maximum 55 C Minimum 35 C Adjustment of the DHW temperature is completely separate from that of the CH circuit The adjustment system integrated within the boiler automatically controls the flow of gas to the burner in order to keep the temperature of DHW delivered constant between the limits of maximum and minimum output Where the demand is at a low level or with the temperature set to the minimum it is normal to see a cycle of lighting and extinguishing of the burner when running Adjustment It is advisable to adjust the DHW temperature to a level commensurate with the demand minimising the need to mix with cold water In this way the automatic control facilities will be fully exploited Moreover where the amount of limescale present in the water may be particularly great not exceedi2. mini HE Your Ideal users guide C24 C28 For installation and servicing guide see reverse of book When replacing any part of this appliance use only spare parts that you can be a BOILERS 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 ENGINEERED FOR PEACE OF MIND mini HE mini HE C24 mini HE C28 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 SAFETY Current Gas Safety Installation amp Use Regulations or rules in force G C appliance No 47 348 38 G C appliance No 47 348 39 In your own interest and that of safety it is the law that this boiler must be installed by a CORGI registered installer or in IE a competent person in accordance with the above regulations It is essential that the instructions in this booklet are strictly followed for safe and economical operation of the boiler ELECTRICITY SUPPLY The appliance must be efficiently earthed Supply 230 V 50 Hz The fusing should be 3 A Connection must be made in a way that allows complete isolation of the electrical supply such as a double pole switch having a 3 mm 1 8 contact separation in both poles or a plug and socket serving only the boiler and
3. ng the position as shown in the following illustration about 50 C minimises annoying incidences of scale deposits and clogging 4 OOO In these cases however it is advisable to install a small water treatment device With such a device you should avoid periodic descaling Consequently the DHW heat exchanger will keep its performance consistent for a longer period of time with resulting gas savings TO SHUT DOWN THE BOILER For short periods To turn the boiler off set the function selector C to the O position The appliance operation light A will flash every 4 seconds For long periods When you do not expect to use the boiler for a long period 1 Switch the electricity supply off 2 Shut off the gas supply cock and the valves for the water circuits fitted under the boiler 3 If necessary empty the water circuits FROST PROTECTION This appliance is provided with a built in anti freeze system that operates the boiler when the temperature is below 5 C Therefore when the boiler is not lit and used in cold weather with consequent risk of freezing do not isolate the boiler from the electricity supply or close the gas inlet cock ESCAPE OF GAS Should a gas leak or fault be suspected contact your local gas supplier without delay Do not search for gas leaks with a naked flame CLEANING For normal cleaning simply dust with a dry cloth To remove stubborn marks and stains use a damp cloth and mild dete
4. on The appliance operation light A will flash every 4 seconds stand by condition 3 If the boiler is to be used for CH and DHW position the main switch as in the following illustration The appliance operation light A will flash every 2 seconds operating boiler e da 4 one e Lo NEN gt Ea DIAGNOSTIC LIGHTS The following table gives a summary of the relationship between each of the possible light combinations and their meaning during normal operaion of the boiler A All CORGI registered installers carry a CORGI ID card and have a registration number Both should be recorded in the Benchmark Commissioning Checklist You can check your installer by calling CORGI direct on 01256 372300 Caradon Ideal Limited is a member of the Benchmark initiative and fully supports the aims of the programme Benchmark has been introduced to improve the standards of installation and commissioning of central heating systems in the UK and to encourage saccade benchmar the regular servicing of all central heating systems to ensure safety and efficiency THE BENCHMARK SERVICE INTERVAL RECORD MUST BE COMPLETED AFTER EACH SERVICE Normally operating boiler CH operation DHW operation Frost protect operation Flashing lamp alone Flashing lamp or simultaneously alternate with with an other lamp another lamp If the lights sequence observed on the boiler is not included above then a fault is indicated
5. rgent Do not use abrasive cleaning materials MAINTENANCE The appliance should be serviced at least once a year by a CORGI registered installer FAULTS No heating or hot water Check that gas and electricity are available at the boiler and that all switches are on Check that the system water pressure gauge G reads at least 0 5 bar Check the lock out signal lamp E If it is illuminated press the boiler reset button D to restart the ignition sequence Hot water but no heating Check that the programmer and room thermostat if fitted are both calling for heat Heating but no hot water Check that cold water flows out of the taps at a minimum rate of 3 5 litres per minute or 1 pint in 10 seconds or less If not look for stop valves not fully open If these simple checks fail to solve the problem or the problem recurs consult your service engineer 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 Troubleshooting Typical Non Product Faults Is there power to the boiler i e is the left hand side green LED A alight and flashing every 4 seconds If not
6. system controls The means of isolation must be accessible to the user after installation IMPORTANT NOTES This appliance must not be operated without the casing correctly fitted and forming an adequate seal Ifthe boiler is installed in a compartment then the compartment MUST NOT be used for storage purposes Under no circumstances should any of the sealed components on this appliance be used incorrectly or tampered with f it is known or suspected that a fault exist on the boiler then it MUST NOT BE USED until the fault has been corrected by a CORGI registered installer or in IE a competent person MINIMUM CLEARANCES Clearances of 200 mm 7 7 8 above and below 25 mm 1 at left 50 mm 2 at right and 450 mm 17 3 4 at the front of the boiler case must be allowed for servicing After installation the following clearances are allowable during use providing the encasing parts are removeable for servicing The bottom clearance can be reduced to 20mm 3 4 The front clearance can be reduced to 50mm 2 BOILER CONTROLS Appliance operation lights Domestic hot water temperature control Main switch and radiator temperature control Boiler reset button Lock out signal lamp Programmer optional o7m7movag Dy System pressure and temperature gauge TO LIGHT THE BOILER 1 Check that the valves located in the lower part of the boiler are open 2 Switch the electricity supply
7. thermostat by turning fully up If this does not respond contact your installer Check the radiator temperature control C is set at the winter setting for central heating The nature of all combination boilers is to heat up water directly from the incoming mains water supply directly through the boiler to supply domestic hot water at the stated flow rates as shown in the boiler installation instructions to achieve a 35 C temperature rise As the ambient temperature of the cold main varies during the summer and winter months it is likely in the colder winter months that the flow rate will need to be reduced at the outlet taps to achieve the same temperatures achieved in the warmer summer months This is not a fault with the appliance but is relevant to the varying temperature of the incoming cold mains water supply Caradon Ideal limited pursues a policy of continuing improvement in the design and Id s l Ideal Consumer Helpline performance of its products The right is therefore reserved to vary specification without notice 01482 498660 Ideal Boilers PO Box 103 National Ave Kingston Upon Hull HU5 4JN ENGINEERED FOR PEACE OF MIND www idealboilers com Te 01482 492251 Fax 01482 448858 Registration No London 322 137
8. this is not a boiler fault contact the installer Check pressure gauge on boiler shows a minimum of 1 bar If not re pressurise via the filling loop to 1 bar if unsure contact your installer turn Boiler is not working for central heating off the tap on the filling loop and press the reset button D to reset the boiler If or hot water unable to do so or if the pressure continues to drop after filling then contact your installer Is the lockout signal lamp E alight Press boiler reset button D If boiler still does not fire contact the installer Boiler goes through ignition sequence but will not fire for either central heating or hot Check gas supply try another gas appliance cooker fire etc If no gas supply then this is not a boiler fault Contact the gas supplier water and then goes to ignition lockout Fan amp pump run continuosly but there is no Check that the air pressure switch test caps on top of the boiler are fitted attempt at ignition correctly Check that integral programmer is set to an on period and the function switch is set to auto If it still does not operate contact your installer If fitted with an external programmer check that the central heating channel is set Operating for hot water but will not operate at an on period If it still does not operate contact your installer for central heating Check the room thermostat is set at the required temperature Test the room
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