Competent Person's Self Certification Scheme Install and Commission this appliance to manufacturer's instructions Complete the Benchmark Checklist If you notify via CORGI Scheme, CORGI will then notify the relevant Local Authority Building Control Scheme on member's behalf Scheme Members only Call CORGI on: 0800 408 1007 or log onto: www.corgi-notify.com...
Crockford Lane, Basingstoke. RG24 8WG or check online at www.trustcorgi.com The boiler meets the requirements of Statutory Instrument “ The Boiler (Efficiency) Regulations 1993 N 3083” and is deemed to meet the requirements of Directive 92/42/EEC on the energy efficiency requirements for new hot water boilers fired with...
Where possible transport the boiler using a sack truck or other suitable trolley. Always grip the boiler firmly, and before lifting feel where the weight is concentrated to establish the centre of gravity, repositioning yourself as necessary. See the ‘Installation’ section of these instructions for recommended lift points.
It is room sealed and fan assisted, and will serve central heating and mains fed domestic hot water. 2. The boiler is set to give a maximum output of :- 24 models - 24 kW DHW 21 kW CH (Condensing) 28 models - 28 kW DHW 25.9 kW CH (Condensing)
(see Section 2.1) in the domestic hot water and central heating position. If the system temperature falls below 5° C then the boiler will fire on its minimum setting until a flow temperature of 30° C is reached.
5 mm Min R.H. Side 5 mm Min (In Operation) Weights (kg) (24) (28) (33) Packaged Boiler Carton 48.6 49.2 Installation Lift Weight 43.6 44.2 Gold Combi 24, 28 & 33 HE NO x Class Central Heating Primary Circuit Pressures...
This means that the efficiency of the system will deteriorate as corrosion sludge accumulates within the system, risking damage to pump and valves, boiler noise and circulation problems. • When fitting new systems flux will be evident within the system, which can lead to damage of system components.
Consideration must be given to the possibility that boiling water/steam could discharge from the pipe. 4. A remote relief valve kit is available to enable the boiler to be installed in cellars or similar locations below outside ground level (kit no. 5121379).
6. The boiler’s maximum working mains pressure is 8 bar, therefore all pipework, connections, fittings, etc. should be suitable for pressures in excess of 8 bar. A pressure reducing valve must be fitted for pressures in excess of 8 bar.
780mm 3. If the boiler is fitted in a room containing a bath or shower reference must be made to the relevant requirements. In GB this is the current I.E.E. Wiring Regulations and Building Regulations.
Bath & Shower Rooms 1. As the boiler is fitted with an integral timer when installed in a room containing a bath or shower it cannot be fitted in zones 1 or 2. (Figs. 11 & 12 shows zone dimensions for a bathtub.
6. It is advisable to keep the condensate pipe internal. 7. External runs greater than 3 metres or runs in cold areas should use 32mm waste pipe. 8. If the boiler is fitted in an unheated location the entire condensate discharge pipe should be treated as an external run.
Air Inlet 7.0 Site Requirements Flue NOTE: Due to the nature of the boiler a plume of water vapour will be discharged from the flue. This should be taken into account when siting the flue terminal. 1. The following guidelines indicate the general requirements for siting balanced flue terminals.
- see Section 9.0 NOTE: Horizontal flue pipes should always be installed with a fall of at least 1.5° from the terminal to allow condensate to run back to the boiler. This bend is equivalent to 1 metre Total equivalent length = A+B+C+2x90°Bends...
Total Equivalent Length = A+B+C+1x90°Bend All vertical and angled runs must be included, measured from the boiler adaptor (point X) to the joint with the flue terminal (point Y). One 91.5° bend or two 135° bends can be included without reduction of the flue length.
IMPORTANT: If the boiler is not fitted immediately after the flue system, temporary precautions must be taken to prevent rain entry into the room of installation. Any precautionary measures must be removed prior to commissioning the boiler.
There must be a constant fall along the entire length of the flue system from the outlet back to the boiler. 4. It is possible to reduce or increase (with the addition of extensions) the length of either or both the 60/100 concentric and 60Ø...
Concentric 60/100 Flue (metres) Y Example 1 Flue Lengths - Not Permissible Concentric 60/100 Flue (metres) Y Example 3 Flue Lengths - OK 60Ø Exhaust 93° Elbow Concentric 60/100 Flue Fig. 26 Additional Accessories A - 93° Elbow 5121369 B - 45° Elbow (Pair) 5121370 C - 1 metre 60Ø...
7. Ensure that the concentric assembly and any extensions fall back to the boiler at an angle of at least 1.5° and that the external air inlet is to the bottom. 8. Use suitable brackets to support the concentric assembly and any extensions, and make good inside and outside.
1. Remove staples, open flaps and remove the cardboard sheet. Remove the polystyrene side pieces and literature. Two people can then lift out the boiler (Figs. 39 & 40). 2. After considering the site requirements (see Section 7.0) position the fixing template on the wall ensuring it is level both horizontally and vertically.
10.0 Installation 10.3 Fitting the Filling Loop 1. The filling loop supplied with the boiler can be connected to the taps on the wall plate at this point. 2. The filling loop is to be connected between the mains cold water inlet and central heating return isolation taps.
1. Lift the boiler using the Lifting Points as shown by the shaded areas (Fig. 45). The boiler should be lifted by TWO PEOPLE. Engage the slots at the top rear of the boiler on the wall plate (Fig. 46) (see Safe Manual Handling page 5).
(Fig. 48). 2. Locate the flue elbow on the adaptor at the top of the boiler. Set the elbow to the required orientation (Fig. 50). The elbow is fully engaged when there is a distance of 20mm from the adaptor to the indicator line (Fig.
10.0 Installation 10.8 Making The Electrical Connections The boiler is fitted with a 1.3m length of 3 core cable. This can be connected to the fused 3A 230V 50H NOTE: Both the Live and Neutral connections are fused. To connect an external control proceed as follows:- 1.
3. Open all hot water taps to purge the DHW system. 4. Ensure that the filling loop is connected and open, then open the heating flow and return valves on the boiler. 5. Open the screw on the automatic air vent on the pump body (Fig.
( ). The current boiler temperature is shown on the display. 4. To check the gas rate it is necessary to set the boiler to ‘Calibration Mode’. 5. Turn both temperature control knobs fully anticlockwise, then quickly turn the DHW temperature knob twice and back fully anticlockwise (Fig.
12.0 Completion 12.1 Completion Case Front Panel 1. Instruct the user in the operation of the boiler and system explaining the operational sequence. 2. Set the central heating and hot water temperature control knobs to the requirements of the user.
Annual Servicing 1. For reasons of safety and economy, it is recommended that the boiler is serviced annually. Servicing must be performed by a competent person in accordance with B.S. 7967-4:2007. If a suitably calibrated combustion analyser is available it may not be necessary to perform a full strip down of the appliance.
21. Rinse the filter thoroughly in clean water and reassemble in reverse order. 22. Turn the selector switch fully anticlockwise against the spring pressure to the reset position and hold for 5 seconds to reset the boiler. Blanking Cold Water Inlet Tap 23.
When the component has been changed turn the selector switch fully anticlockwise against the spring pressure to the reset position and hold for 5 seconds to reset the boiler before recommissioning. See Section 13.1 “Annual Servicing” for removal of case panel, door etc.
14.12 Pump - Head Only (Fig. 91) 1. Drain the boiler primary circuit and remove the socket head screws securing the pump head to the body and draw the head away. 2. Undo the screw on the pump wiring cover and remove the cover.
14.0 Changing Components 14.15 Pressure Gauge (Figs. 94 & 95) 1. Drain the boiler primary circuit and undo the nut on the pressure gauge capillary. 2. Undo the screws securing the gauge retaining bracket. 3. Remove the bracket and gauge assembly. Depress the barbs on the side of the gauge and remove the retaining bracket.
Examine the ‘O’ ring seals, replace if necessary. 6. Reassemble in reverse order. NOTE: To assist the boiler to light prior to final setting, use a suitable hexagon key to wind out the Gas/Air adjustment screw until it is flush with the valve body, then turn the screw 4 full turns clockwise (Fig.
) may be checked using a suitably calibrated analyser after running the boiler for several minutes. 2. To do this it is necessary to set the boiler to ‘Calibration Mode’. 3. Ensure that all external controls are calling for heat. The actual current boiler temperature is shown on the display.
18.2 Error Codes 1. If a fault occurs on the boiler an error code may be shown by the facia display. 2. The codes are either two or three digit, preceded by the letter 'E'. For example, code E133 will be displayed by 'E1' alternating with '33'.
Refer to Section 16.0 “Illustrated Wiring Diagram” for position of terminals and components Central Heating - Follow operational sequence (do Turn selector switch to The display illuminates Error 110 flashing Error 130 flashing Error 133 flashing Error 20, 28 or 50 flashing Error 119 flashing Turn Central Heating thermostat to Maximum.
Domestic Hot Water - Follow operational sequence Turn selector switch to The display illuminates Error 110 flashing Error 133 flashing Error 20, 28 or 50 flashing Error 119 flashing Turn Domestic Hot Water thermostat to Maximum. Open DHW tap fully. DHW Hall Effect sensor operated (red neon on the sensor illuminated...
Fault Finding Solutions Sections Is there 230V at: Main terminals L and N Main terminal fuse PCB - X1 connector terminals 1,2 Is there 230V at: Pump If pump jammed, release PCB - X3 connector terminals 3 & 4 Change pump supply cable CH system pressure less than 0.5 bar Check the tap of the automatic air vent is opened...
E20 or E50 - Temperature sensors faulty. Cold resistance approximately 10kΩ @ 25° C (DHW and CH sensors) 20kΩ @ 25° C (Flue sensor) (resistance reduces with increase in temp.) E28 - Incorrect PCB fitted Check and correct the connection of the tube between the venturi and gas valve Gas at burner PCB - X3 connector is 230V AC across...
Check the gas supply pressure: For Natural Gas greater than 10 - 11 mbar Check and correct if necessary 1. The mechanical set of the gas valve (CO2 values - see instruction) 2. Flame sensing electrode and lead connections 3. Flame sensing electrode position Flame current should be more than 0.5 μA Overheat thermostat operated or faulty, i.e.
THERMOSTATIC RADIATOR VALVES AUTOMATIC BYPASS TO SYSTEM FOR ALL BOILERS CONFIRM THE FOLLOWING THE SYSTEM HAS BEEN FLUSHED IN ACCORDANCE WITH THE BOILER MANUFACTURER’S INSTRUCTIONS? THE SYSTEM CLEANER USED THE INHIBITOR USED FOR THE CENTRAL HEATING MODE, MEASURE & RECORD...
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. Always use the manufacturer’s specified spare part when replacing all controls SERVICE 1...
All descriptions and illustrations provided in this leaflet have been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in this leaflet. All goods are sold subject to our standard Conditions of Sale which are available on request.