USERS GUIDE

HIGH EFFICIENT COMBINATION BOILER
RSF 82ET - RSF 82E WITH OR WITHOUT BUILT IN TIMER
It is the law that all gas appliances are installed by a competent person, in accordance with the gas safety installation and use current regulations. To the current Gas Safety (Installation and Use) Regulations B.S.5440:2 - (2000). All CORGI registered installers carry a CORGI I.D. card and have a registration number. Both should be recorded in your boiler log book. You can check your installer by calling CORGI direct on: 01256 732300. CLEARANCES AROUNDTHE BOILER Above 120mm (5 inches) Below 150mm (6 inches) Front 450mm (18 inches) Sides 75mm (3 inches) 25mm (1 inch) in front when installed in a cupboard. 1.2.1 Minimum clearances are required for safety and maintenance. Do not obstruct any purpose made ventilation opening if boiler has been fitted in a compartment. Never hang clothes, etc., over the appliance. USER CONTROLS See Fig. 1 1.3.1 Escape of gas Should a gas leak be suspected, contact your gas supplier without delay. Do NOT search for gas leaks with a naked flame. WARNING: This appliance must be earthed. Do not touch or tamper with this sealed unit or its components 1. 1.1 INTRODUCTION Please carefully read information given in the booklet to help you gain maximum control from your appliance with minimum trouble and cost. Your Ravenheat Combination Boiler has been designed to supply your Central Heating and Domestic Hot Water directly from one unit. When central Heating is operating, the circulation will be interrupted when domestic hot water is being drawn off. This will normally not affect the level of heating. 1.4.2 1.4 1.4.1 This appliance is designed to operate with the minimum of attention by the user. All controls are to be found on the control panel. OPERATING SAFETY CHECKS TO PROTECT YOUR APPLIANCE Before lighting the appliance check central heating system pressure (7) is not less than 1 bar gauge. If it is below this do not light but consult your installer about refilling your system as you may have a leak in the system. An ORANGE warning light on the control panel (8) warns of a flame failure of the main burner. This can be reset manually by pressing mains boiler on/off switch (1). A RED warning light on the control panel (9) warns of a high temperature lockout on the overheat thermostat. This could occur due to air or poor circulation in the boiler/heating circuit. This can be reset manually by removing grey cover (3) on control panel and pressing red reset button. Replace cap. If lockout should persist leave the appliance shut down and consult your installer/service engineer immediately.

Fig. 1

2. 2.0 2.1
OPERATING DOMESTIC HOT WATER Select only switch position (1).

3.3 3.3.1

TO SHUT DOWN THE APPLIANCE For short periods, switch to only and turn off all hot taps. For long periods switch of the on/off switch (1). If the appliance is to be shut down for long periods when there is a risk of freezing, then appliance should be drained. Similar refilling must be done by a competent person following approved procedures. CLEANING OF APPLIANCE OUTER CASING Use a clean damp cloth. Do not use any abrasive cleaners and with a dry cloth lightly polish to protect painted surfaces. Control panel and fixtures can be wiped with damp cloth and dried. Spray polishes must not be used on control panel surfaces or switches. Care must be taken in preventing any liquids entering the appliance.
Open hot water tap. After about 3 seconds main burner will always operate. Temperature of domestic hot water can be varied by adjusting the water flow rate at the tap. Domestic thermostat (5) will control maximum temperature leaving the appliance. The knob can be set between minimum and maximum approximately 35 oC to 65 oC (49F to 95F). For maximum temperature of domestic hot water leave in maximum position. OPERATING HEATING & HOT WATER TO SET AND ADJUST BUILT-IN TIMER MODEL SEE OPPOSITE PAGE 3.

4. 4.1

3.0 3.1

Select

switch (2) position. 4.2 CARE OF YOUR APPLIANCE AND SYSTEM Annual servicing of your appliance is required to maintain safety and efficiency of its operation. Therefore it is recommended that the appliance is serviced at least once a year and that the whole of the heating system be checked at the same time by a qualified installer. If it is known or suspected that a fault exists on the boiler then it MUST NOT be used until the fault has been corrected by a COMPETENT PERSON. It is essential that the instructions in this booklet are strictly followed for safe and economic operation of the boiler.

Switch on time clock, adjust room stat and/or thermostatic radiator valves to high settings. Main burner will operate. Temperature output of central heating can be adjusted by central heating thermostat (4). The knob can be set between minimum and maximum approximately 40 oC to 85 oC (1 40F to 1 85F). While the appliance is being used to provide domestic hot water, the central heating will not operate. When hot water is no longer required the appliance will automatically revert to central heating and should not noticeably affect the level of central heating. Adjust external controls to required settings. NOTE: An anti-cycling device is fitted to the heating function. When the boiler reaches its set maximum temperature it will not operate on heating for about 3 minutes but the domestic hot water function will always operate on demand.
SERVICING SHOULD BE CARRIED OUT BY A COMPETENT PERSON. Ravenheat Manufacturing Ltd., Chartists Way, Morley, Leeds LS27 9ET.
PROGRAMMABLE TIME CLOCK INSTRUCTIONS FOR USE Your Ravenheat boiler comas complete with (optional) digital programmer. The timeclock is supplied with a cover to prevent accidental loss of programme, or children tampering with preset programmes. 5. TO PROGRAMME TIME CLOCK
To access programming buttons remove clear cover. Press reset key with a pencil before setting or reprogramming times. 5.1.1 5.1.1.1 TO SET TIME AND DAY OF THE WEEK: SET DAY OF WEEK: - Press clock button and hold in. Press day button to desired day. - Release both buttons. The day of the week will be set. SET HOUR: - Press clock button and hold in. Press hour button to desired time. - Release both buttons. The hour will be set.
For each programme days off setting must be input the same as the onsetting. 5.1.2.7 After setting programme 1 ON/OFF TIME repeat step 2.1 to 2.7 to set programmes 2 through to 6 if required. Your timer gives you up to 6 different ONE and 6 different OFF settings per programme period. Note you have a choice of 6 ON-6 OFF programmes max.

5.1.1.2

5.1.2.8
5.1.1.3 SET MINUTE: - Press clock button and hold in. Press minute button to desired time. - Release both buttons. The minute will be set. NOTE: When, setting time holding in the hour/minute button this will rapidly advance the display. 5.1.2 5.1.2.1 TO SET PROGRAMMES: Press timer button and release to enter into programme mode. Programme 1 ON will show in lower left hand corner. Press DAY key to select the programme period. There are 10 day settings for your choice. (1) MO to Su (2) MO (3) Tu (4) We (5) Th (6) Fr (7) Sa (8) Su (9) Mo+Tu+We+Th+Fr (10) Sa+Su. You now have a choice of 6 programmes. 5.1.2.4 5.1.2.5 5.1.2.6 Press hour button to set the required hour on. Press minute button to set minute. After setting the programme press TIMER key again 1 OFF will appear. Repeat procedure 5.1.2.3 through to 5.1.2.5 to set programme 1 OFFTIME.

5.1.2.8.1 REVIEWYOUR PROGRAMMES: - Press the TIMER key to advance display to each subsequent ON or OFF setting. - Check days and times displayed. - To make a change, follow instructions under TO SET PROGRAMMES. Note on completion of programming operations press the clock button to show current time/day and replace the clear tamper proof cover. 5.1.2.8.2 MANUAL KEY - Press MANUAL key to select ON / AUTO / OFF mode. - ON mode is to turn on the timer, OFF mode is to turn off the timer. - AUTO mode is to set the timer to programme mode. It will turn on or turn off according to the programmes you set. - From ON to AUTO mode it will turn on until next OFF programme. - From OFF to AUTO mode it will turn off until next ON programme. 5.1.2.8.3 LED INDICATOR LED light is on when the boiler is operating in heating mode. 5.1.3 TO RESETTIMER: Press reset button to reset the timer unit.

5.1.2.2

5.1.2.3
NOTE: Once the reset button is pressed, the stored time and programme will be cleared to initial state.
N.B.: When the clock is either programmedon, or is on constant, the red indicator will illuminate
Chartists Way, Morley, Leeds, LS27 Telephone: (0113) Tfax: (0113) 238 0229

ELECTRONIC IGNITION - AUTOMATIC MODULATING BOILER
FANNED COMBI RSF 82E - RSF 82ET
WITHOUT TIMER RSF 82E G.C. NNATURAL GAS (G 20)
Tested, certified and service listed
Listed by The United Kingdom Water Fitting Byelaws Scheme
WITH TIMER 0 RSF 82ET G.C. N 04 NATURAL GAS (G 20)
INSTALLATION AND SERVICING INSTRUCTIONS TO BE LEFT WITH USER
Technical and illustrative data are not binding and can be modified without prior notice. The descriptions and illustrations in the present booklet are for guideline purposes only.
RAVENHEAT MANUFACTURING LTD., CHARTISTS WAY, MORLEY, LEEDS, LS27 9ET. - TELEPHONE (0113) 252 7007
ELECTRONIC IGNITION - AUTOMATIC MODULATING BOILER. FOR CENTRAL HEATING AND DOMESTIC HOT WATER This new high efficient turbo-modulating boiler is designed to meet domestic hot water and central heating requirements at super high efficiency, unheard of only a few years ago. POSITION The appliance is extremely versatile as it can be fitted in almost any room. The appliance is room sealed, there is no contact between combustion chamber and living accomodation. This guarantees maximum safety and efficiency. Indeed, our depression/combustion front cover has been designed to fit achieving maximum air tight seal using screw down fasteners at 15 cm. This should not hinder service of the appliance, but does ensure maximum efficiency and safety - something which Ravenheat take great pride in. Each boiler has been designed and manufactured in our modern plant to exacting ISdiscipline, all boilers carry full CE marking of approval. Technical sales and commercial service are available throughout the UK. This product is guaranteed by Ravenheat Manufacturing, Chartist Way, Morley,. LEEDS, LS27 9ET. Telephone No 0113 2527007. BASIC COMPONENTS - (See figure 1) Guarantee is a full 12 months from date of purchase providing the appliance has been fitted in accordance with these instructions and relevant codes of practice. MAJOR COMPONENTS Gas valve with flame modulator. Variable head pump suitable for any type of central heating system. Main burner with flame stabiliser designed to operate under all thermal conditions. Double parallel heat exchanger which, for domestic hot water uses, the countercurrent system, offering high thermal exchange and durability. High reliability diverter valve with ethylene propylene diaphragm permitting primary fluid circulation in the boiler during D.H.W. supply. This gives maximum heat exchange, improved efficiency and exceptionally silent operation. Built in frost protection. Printed circuit board designed to connect to room stat and/or timer/frost stat. Aesthetically pleasing panels and controls. On/Off ball valves for shutting off gas central heating and domestic hot water circuits. Safety relief valve (for safety discharge). Programmable 7 day module with digital display (optional model). All front panel controls not often used have been hidden. This achieves simplicity of operation with easy to clean panels. COSHH - CONTROL OF SUBSTANCES HARMFULTO HEALTH IMPORTANT This appliance contains materials that are indicated below. It is the Users/Installers responsibility to ensure that the necessary personal protective clothing is worn when handling, where applicable, the pertinent parts that contain any materials that could be interpreted as being injurious to health and safety. WARNING When installing the appliance, care should be taken to avoid any possibility of injury when handling sheet metal parts, GENERAL INFORMATION: GLUES AND SEALANTS - exercise caution - if these are still in liquid form. INSULATION PADS, CERAMIC FIBRE - may be harmful if inhaled, may be irritating to skin, eyes, nose and throat. When handling keep dust generation to a minimum, avoid inhaling and contact with skin or eyes. When disposing of the product keep dust generation to a minimum and ensure that parts are securely wrapped. When servicing avoid inhalation by using a vacuum cleaner or in conjunction with other tools, After handling wash hands and other exposed parts. RAVENHEAT use only high quality material for production of this product, in an effort to protect the environment components should be re-cycled.

SECTlON 2 2.1 2.2 DESCRIPTION OF CONTROL SYSTEM AND SEQUENCE OF OPERATION Domestic hot water mode When the appliance is in rest mode with the mains neon switch on. Switch the summer/winter switch in the position, making sure the heating circuit is charged with water (above 1 bar). When the domestic hot water tap is turned on, the boiler will function in the following sequence: The pump starts. The control board sensors. The fan operates via the pressure switch and sends a signal back to the ignition board that the fan is running at maximum speed. The spark ignition system is powered which in turn commences the spark igniter to operate and light the burner. At this point the ignition board opens the first step of the gas valve to light the pilot/burner. When the electrode/sensor senses the signal from the pilot/burner, it opens the second stage of the gas valve via the ignition board on minimum power. Upon the second valve opening the spark igniter stops. From the minimum gas rate setting the maximum increases to the boiler permissible pressure over a period of 3 to 4 seconds and will remain at its maximum required power until its maximum regulated temperature. When the domestic hot water tap is closed the diverter valve goes back into rest mode, the main burner is shut down along with the pilot/burner. The pump and fan are also

2.3.2 2.3.3

2.3.4 2.3.5

2.4 2.4.1

Domestic hot water mode The heat exchanger in the D.H.W. circuit is built into the main heat exchanger, and domestic water is heated by converting the water in the central heating circuit. The transference of heat is very high because the two fluids move in a counter direction flow to each other. Switch 33 in the (winter) position. When a hot water tap is turned on a diaphragm diverter valve excludes the central heating circuit the boiler automatically modulates to maintain the domestic hot water at a constant temperature. Water temperature can be regulated using the D.H.W. thermostat located on the front control panel. When domestic hot water is being drawn the main burner and pump perform as they do during central heating except that the burner is commanded by the D.H.W. thermostat.
When D.H.W. is no longer called for the boiler automatically returns to the central heating mode. Switch 33 in the (summer) position. The boiler functions like an automatic gas hot water heater. When D.H.W. is no longer required the main burner, fan and pump immediately turn off. This also takes place when switch 33 is on (winter) if there is no demand for heat to the central heating system or until the room thermostat/time clock demands for heat to the central heating circuit. SAFETY DEVICE In both central heating and domestic hot water mode safe operating is ensured by: - A differential pressure switch which shuts off the main burner if the fan stops or the flue or combustion air intake duct is obstructed.

26.1 kW 18.9 kW 13.0 kW 23.6 kW 16.6 kW 10.3 kW 2.6 m3/h 2.1 m3/h 1.3 m3/h (8.0 in wg.) 8.1 mbar 4.1 mbar 1.5 mbar 837 TANDEM
(89,100 Btu/h) (64,500 Btu/h) (44,400 Btu/h) (80,500 Btu/h) (56,700 Btu/h) (35,200 Btu/h) (91.8 ft3/h) (74.1 ft3/h) (45.9 ft3/h ) (3.2 in wg.) (1.6 in wg.) (0.6 in wg.)
SECTION 4 GENERAL REQUIREMENTS 4.0 SAFETY Gas Safely (Installation and USE) Regulations, 1994, and amendments 1996. It is law that all gas appliances are installed and serviced by a Corgi registered installer (identified by in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. It is in your own interest, and that of safety, to ensure the law is complied with. Check the boiler and flue is the correct type for installation. The installation of the boiler MUST also be in accordance with the latest I.E.E (BS 7671) Wiring Regulations, local building regulations, bye-laws of the local water authority, the building regulations and the Building standards (Scotland) and any relevant requirements of the local authority. GENERAL INFORMATION Both the user and the manufacturer rely heavily on the installer, whose job it is to install the combination boiler and connect it to a correctly designed heating system. Acquaint yourself with the British Standards concerning installation requirement. If you need advice on any points your Ravenheat Technical Services Office would be pleased to help. It is recommended that tools suitable for brass fittings are used, and have a capability to accommodate hexagon sizes up to 50 mms. CODES OF PRACTICE/Fief: Documents Detailed recommendations are contained in the following British Standard Codes of Practice: BS. 6891 BS. 6798 Low pressure installation pipes. Installation of gas fired hot water boilers of rated input not exceeding 60 kW. Forced circulation hot water systems. Installation of gas hot water supplies domestic purposes (2nd Family Gases). Flues (for gas appliances of rated input not exceeding 60 kW). Ventilation (for gas appliances of rated input not exceeding 60 kW).
NOTE: The Ravenheat boiler has been tested and examined by BG Technology Certification Services and is certified to comply with the relevant requirements of ES 5258 Part BS 6332 Part and the relevant BGK3.G. 1 agreements, also tests based on BS 5286 Part 1, If in doubt on any point please consult Ravenheat Manufacturing Ltd. 4.2 4.2.1 LOCATION OF BOILER Siting of Ravenheat RSF 82E Combi Boiler must be as follows. The position of installation should be within the building, unless otherwise protected by suitable enclosure. Adequate space for installation, servicing and aircirculation around boiler must be allowed for. The Ravenheat RSF 82E Combi Boiler must be fitted on a flat and vertical wall capable of adequately supporting the weight of the boiler and any ancillary equipment. The appliance may be installed on a combustible wall subject to the requirements of the Local Authority and Building Regulations. CLEARANCES AROUNDTHE APPLIANCE The following minimum free spaces, required for installation inspection and servicing, must be left around the boiler 18 inches (450 mm) in front 5 inches (120 mm) above 6 inches (150 mm) below 3 inches (75 mm) on each side 1 inch (25 mm) in front when installed in a cupboard. IMPORTANT NOTICE If the combination boiler is to be fitted in a timber framed building it should be fitted in accordance with the British Gas Publication Guide for Gas installations in Timber Frame Housing Reference DM2. If in doubt advice must be sought from the local gas supplier.The combination boiler may be installed in any room or internal space, although particular attention is drawn to the requirements of the current I.E.E. Wiring Regulations and in Scotland the electrical provisions of the Building Regulations applicable in Scotland, with respect to the installation of the combination boiler in a room or internal space containing a bath or shower. Where a room sealed appliance is installed in a room containing a bath or shower, any electrical switch or appliance control utilising mains electricity should be so situated that it cannot be touched by a person using a bath or shower. A compartment used to enclose the combination boiler MUST be designed and constructed specifically for this purpose. An existing cupboard, or compartment, may be used provided it is modified accordingly. Samples of the RSF 82E combination boiler have been examined by B.G. Technology Notified Body, and is certified to comply with the essential requirements of the Gas Appliance Directive 90/396/EEC, the Low Voltage Directive 72/23/EEC and shows compliance with the Electro Magnetic Compatibility Directive 89/336/EEC and are therefore permitted to carry the CE Mark. The appliance has been tested and approved by the WRc as meeting the requirements of G3 and L of the Building regulations and water Bylaws Scheme Approved Products.

BS. 5449 BS. 5546

BS. 544O:1 BS. 5440:2
Health &Safety Document No. 635 The Electricity at Work Regulations, 1989. 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 this appliance unless covered by these Installation and Servicing Instructions or as otherwise recommended by Ravenheat in writing. If in doubt please enquire. Any direct connection of a control device not approved by Ravenheat could invalidate the certification and the normal appliance warranty. It could also infringe the Gas Safety regulations and the above regulations.

4.5 4.5.1

GAS SUPPLY A gas meter is connected to the service pipe by the Local Gas Supplier or a contractor. An existing meter should be checked preferably by the gas Region to ensure that the meter is adequate to deal with the rate of gas supply required for all appliances it serves. Installation pipes should be fitted in accordance with BS 6891. Pipework from the meter to the boiler must be of adequate size (22 mm) min. To within at least 3 metre of the boiler (15 mm) min. can then be used for remaining pipe work to the appliance. A smaller size than the boiler inlet gas connection should not be used. The complete installation must be tested for soundness as described in the above Code. N.B. if the gas supply for the boiler serves other appliances ensure an adequate supply is available both to the boiler and the other appliances when they are in use at the same time. FLUE SYSTEM The terminal should be located where dispersal of combustion products is not impeded and with due regard for the damage or discoloration that might occur to building products in the vicinity (see fig. 6). The terminal must not be located in a place where it is likely to cause a nuisance. The terminal must not be closer than 25 mm. (1 in) to any combustible material. For protection of combustibles, refer to BS 5440.1. Where a flue terminal is installed less than 1000 mm. from a plastic. or painted gutter: or 500 mm from painted eaves, an aluminium shield 1000 mm. long, should be fitted to the underside of the gutter or painted surface. Pluming will occur at the terminal so, where possible, terminal positions which could cause a nuisance should be avoided. The flue must be installed in accordance with the recommendations of BS 5440: Part 1. IMPORTANT NOTICE: if a left or right side flue is required, then a 90 Degree Bend will be needed. (Not supplied as standard). Available on order. If the flue terminates less than 2 M. above a balcony, above the ground, or above a flat roof to which people have access, then a suitable terminal guard must be fitted. Fit only recommended flue terminal guard by securing concentrically around terminal with screws. Available on request from: RAVENHEAT Manufacturing Ltd Chartists Way Morley, Leeds, West Yorkshire ENGLAND LS27 9ET - U.K. Tel. 7007

IMPORTANT: The following notes are intended for general guidance. The boiler MUST be installed so that the terminal is exposed to external air. It is important that the position of the terminal allows the free passage of air across it at all times. Minimum acceptable spacing from the terminal to obstructions and ventilation opening are specified in Fig. 6. Note positions: Due to the terminal design, installation is possible with clearances less than those specified in BS 5440, Part 1. Fig. 6

4.6 4.6.1

The flue must be terminated in a place not likely to cause a nuisance.
A concentric vertical flue kit is available, for flueing applications up to a maximun height of 4.5 metres. For further details see vertical flue installation instructions and page 21. AIR SUPPLY

4.8 4.8.1

WATER CIRCULATION (central heating) Detailed recommendations are given in BS 6798 5449.1.1977 (for smallbore and microbore central heating systems). The following notes are given for general guidance. Pipework Copper tubing to BS 2871 1.1.1971 is recommended for water pipes. Jointing should be either with capillary soldered or with 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. It should be ensured as far as possible that the appliance heat exchanger is not a natural collecting point for air except where providing useful heat, pipes should be insulated to prevent heat loss and to avoid freezing. Particular attention should be paid to pipes passing through ventilated spaces in roofs and under floors. The water through the appliance heat exchanger circuit must exceed the min. 2.38 gals/min. (650 It/h) when the burner is firing. It is important to ensure that this rate is achieved when sections of the system are shut off either manually or by automatic controls. Therefore a by-pass must be fitted to the system (15 mm min.) (Fig. 6A). If the volume of circulating water is too low, the boiler water temperature will rise too rapidly. This could cause noise in the system or even cause the safety thermostat to trip.

4.7 4.7.1

4.8.2 The following notes are intended for general guidance. The roomsealed fan flued boiler does not require a permanent air vent for combustion air supply; Where installed in a cupboard or compartment ventilation is not required.

Fig. 6A

Draining tap These must be located in accessible positions to permit the draining of the whole system. The taps must be at least 15 mm nominal size and manufactured in accordance with BS 2870 1980. Air release points These must be fitted at all high points where air will naturally collect, and must be sited to facilitate complete fitting of the system. The appliance has an integral sealed expansion vessel to accomodate the increase of water volume when the system is heated. It can accept up to 1.5 gal (7 Its) of expansion water. lf the appliance is connected to a system with an unusually high water content, calculate the total expansion and add additional sealed expansion capacity as appropriate (Fig. 7). In general modern systems will present no problem. Fig. 7

ELBOW HEADER

5.7.4 5.7.5

RUBBERSLEEVE

5.7.10 5.7.11

Fig. 42

5.8 5.6.1

Fig. 43

5.9 5.9.1
GAS CONNECTION (Fig. 46) A minimum gas pressure of 20 mbar (6 in w.g.) must be available at the boiler inlet at full flow rate. Fit gas service cock to the boiler via the union nut and connect gas pipe. Do not overtighten and use another spanner as a counter force to avoid straining internal connections. Important: Consult sect. 4.5.1 CENTRAL HEATING CONNECTION (Fig. 46) Before any central heating connections are made to the boiler all system valves should be opened and the system thoroughly flushed out with cold water. - Connect the central heating return pipe to the isolating cock marked CHR. - Connect the central heating flow pipe to the isolating cock marked CHF. - Pipe dimensions and position are marked on template supplied and Fig. 49 A DOMESTIC HOT WATER (Fig. 46) The domestic hot water circuit does not need a safety valve but it is essential to ensure that the pressure of the cold water supply does not exceed 10 bar. If in doubt it is advisable to install a pressure reducing valve. The minimum pressure needed to operate the domestic hot water system is 0.5 bar

Fig. 44

5.10 5.10.1

5.11 5.11.1

Fig. 45
with a flow of approx 3 Lts per min. The regulator screw on the cold water outlet of the diverter valve may be adjusted to prevent excess volume flow (Fig. 53 COMMISSIONING SECTION). Flush out all foreign matter from the supply pipe before connecting to the appliance. - Connect the 15 mm. cold water pipe to the stop cock to the appliance inlet marked DCW. - Connect the 15 mm. hot water pipe with a suitable connection.

Fig. 46

5.13 5.13.1
ELECTRICAL CONNECTIONS IMPORTANT: Electricity supply must be as specified in clause (sect. 4.10). - When controls external to the appliance are required, design of the external electrical circuits should be undertaken by a competent person. In accordance with the IEE wiring regulations. It is essential that all external controls must be volt free. Factory fitted internal wiring must not be disturbed when wiring external controls. - To gain access to the electrical box remove the front panel of the case as described in clauses (sect. 5.4.1) and the instrument panel as described in clauses (sect. 5.4.3). - The terminals are easily visible on the front of the electronic control board (Fig. 48). - Heat resistant flexible cable is fitted between the isolator and the terminal block. It is a 3 core cable of 0.75 mm2 (24x0.2 mm) to BS 6500. Make sure all wires to the appliance are routed away from sharp edges and hot surfaces. The cable must be fastened with its cord anchorage and connected so that should the cable slip from the anchorage the current carryIng conductors does not become taut before the earthing conductor. Securely tighten all terminal screws and arrange the cable with slack between the cord anchorage and the terminal block. WARNING: If the supply cord is damaged, it must be replaced by a service engineer (supply cord available from Ravenheat Manufacturing Ltd). PROGRAMMABLE TIMECLOCK Instructions for use Consult Users Guide.

Fig. 49

INSTRUMENT PANEL Fig. 50

GAS VALVE Fig. 51

KEY 77 - Upstream pressure inlet 81 - Downstream pressure outlet 104 - Gas valve modulator 110 - Max. regulator nut 111 - Min. regulator nut 114 - Electrical connections modulator
LIGHTINGTHE BOILER (Fig. 50) Before lighting the main burner make sure that the heating circuit flow and return valves are open and also that the cold water input cock is also open. - If external controls are installed (e.g. timeclock and thermostat) make sure that they call for heat. - Turn summer/winter selector switch 1 to w i n t e r - Turn control thermostat 4 up to its maximum setting. - Now the main burner should turn on. With leak detection fluid test for gas soundness of all gas components and joints. - See paragraph 6.14 for regulating the heating circuit thermostat. Check gas mains pressure (Fig. 52). Fit a gas pressure gauge on pressure inlet 77 (Fig. 51) on the gas valve, after releasing the seal screw. Check the gas mains pressure with boiler operating. Check with the Local Gas Supplier if the pressure differs significantly from 20 mbar. CHECK THE GAS PRESSURE AT THE BURNER Now check if the maximum gas pressure at the burner is equal to 8.1 0.5 mbar (3.2 0.2 in w.g.) for RSF 82E - RSF 82ET. To do this proceed as follows: - Turn off main switch 1 (Fig. 50) -Set main switch on & -Set control thermostat 5 at its maximum setting. -Fit a pressure gauge, using a hose, to pressure test point 81, (Fig. 51), after first loosening its close-off screw. -Open one or more hot water taps so that at least 10 11.4 litre of water flows per minute. - The pressure indicated on the pressure gauge is the maximum operating gas pressure. - Check if the minimum pressure corresponds to 1.5 mbar (0.6 in w.g.) RSF 82E - RSF 82ET as is set at the factory. Detach one of the wires going to modulator 104 (Fig. 51) and make the boiler operate just as was done for checking the maximum pressure. Observe the pilot flame which will light a second before main burner. It should be about 20 mm long (Fig. 528) and envelop the spark electrode tip.
ADJUSTING MINIMUM AND MAXIMUM PRESSURE (Fig. 51) SIT-HONEYWELL GAS VALVE - Remove cap covering modulator to gas valve. - Detach one of the cables connected to the modulator 114. - With the boiler operating use a screw driver (HONEYWELL 9 mm spanner) to turn the nut 111 clockwise to increase pressure and anti-clockwise to decrease pressure. RECONNECTTHE DETACHED CABLE Use a screw-driver to hold nut 111 firm (HONEYWELL 9 mm spanner) and use a 10 mm spanner (HONEYWELL 7 mm spanner) wrench to rotate the nut 110 clockwise to increase the pressure and counter-clock-wise to decrease it. After adjustement turn off D.H.W.Taps. SETTING CENTRAL HEATING GAS PRESSURETHE BOILER COMES SET AT MID POSITION RATING FOR USE ON C.H. (table1) When the boiler operates in the C.H. mode the gas pressure at the burner can be set between the min. and max. values. This permits capacity to be adjusted to suit system demand. If adjustment is required proceed as follows: - Remove the front panel and the panel instrument as described in clauses (sect. 5.4.1 and sect 5.4.3). Unscrew the two screws holding the control box cover and lift off (Fig. 78). - Select (winter) switch position - Turn control thermostat 4 to maximum setting (Fig. 50). - Check all external controlsare on and calling for heat ensure all D.H.W. taps are off. - With boiler operating use a screwdriver to turn potentiometer (Fig. 48) clockwise to increase pressure and anti-clockwise to decrease pressure. - To obtain the desired heat value establish pressure as per (Fig. 52). - Replace the protective cover. - Once this pressure is established, mark it up on data badge with adhesive red label/arrow burner pressure setting so that this can be referred to and checked during future servicing.

RATIO BETWEEN BURNER PRESSURE AND OUTPUT Fig. 52

6.13 6.13.1

CHECKING THE FLUE SYSTEM The flue system should be visually checked for soundness. Check all clamps and fixings are secure and tight. CHECKING THE HEATING THERMOSTAT Allow the system to warm up and then turn the C.H. thermostat to ensure the main burner modulates from high to low and low to off and vice versa (scale range covers approx. 45oC 85oC). TESTING AND REGULATING THE DOMESTIC HOT WATER SYSTEM FLOW Put the appliance in operation with the (summer/winter) switch in winter position. - Open a domestic hot water tap (preferably the bath tap). Ensure cold water inlet stopcock is open and the D.H.W. thermostat 5 (Fig. 50) is set at maximum. - If the burner does not light check that the water flow rate is above the min. required to operate the differential pressure 2.8 Lts./min. (0.61 galsimin). - The temperature of the water will depend on the rate at which it flows. If, due to high water pressure, the flow rate is too high (and thus the temperature too low for practical use) the flow rate may be adjusted. It is better to set for the lowest acceptable temperature preferably at the bath tap since the user can gain higher temperatures at other restricted flow taps (Table 1). - To adjust the flow rate refer to (Fig. 53) side view and locate the adjustment screw (Fig. 53). Turn the screw clockwise until the required temperature is reached. N.B.: If the cold supply is subject to large fluctuations or is above the permitted max. water pressure, a suitable pressure/flow regulator should be fitted in the cold water supply to the appliance. - Turn the appliance mode selector switch (Fig. 50) (1) to the summer position. Slowly close the draw off tap to reduce the flow rate to above the min. (approx. 2.8 litre/min - 0.61 gals/min.). Rotate the D.H.W. control thermostat to ensure it operates at its various setting. - Close the draw-off tap still further. The burner should stop when the rate falls below about 2.8 litreslmin (0.61 galslmin.).

6.14 6.14.1

6.15 6.15.1

THREE WAY VALVE Fig. 53

Once the process of commissioning the boiler is complete, the commissioning engineer MUST complete his section in the Benchmark log book.

HANDING OVER TO THE USER

6.16.1 A f t e r c o m p l e t i o n o f i n s t a l l a t i o n a n d commissioning of the system, the installer should hand over to the Householder by taking the following actions: - Hand the Users Instructions to the Householder and His/Her explain responsibilities under the Gas Safety Regulations 1996 (as amended). - Explain and demonstrate the lighting and shutting down procedures. - The operation of the boiler including the use and adjustment of ALL system controls which should be fully explained to the Householder. This then ensures the greatest possible fuel economy consistent with household requirements of both heating and hot water consumptions. Advise the User of the precautions necessary to prevent damage to the system, and to the building, in the event of the system remaining inoperative during frost conditions. - Explain the function and the use of the boiler only/ (Summer/Winter) and ON/OFF switches. - Explain and demonstrate the function of time and temperature controls neon lights radiator valves etc. for the economic use of the system. - If an optional time clock is fitted, then draw attention to the time clock Users Instructions and hand them to the Householder. - Stress importance of regular servicing by a qualified Heating Engineer and that a comprehensive service should be carried out AT LEAST ONCE A YEAR. Fill in the Benchmark log book and leave completed with the customer.

ticular installation conditions and usage but in general, once per year should be adequate. WARNING Before the start of any servicing or replacement of components always isolate electricity supply to the appliance and always turn off the appliance gas supply at the gas service cock. Data badge position - lower left hand sub frame. - The following notes apply to the appliance and its controls but it should be remembered that attention must also be paid to the heating and hot water circuits with special attention to radiator valves, thermostats, clocks, leaking hot water taps etc. - Where it is necessary to replace a gasket that relies on adhesive for securing this adhesive will be supplied with the gasket as a spare item. - In all cases prior to servicing, remove the outer case (sect. 5.4). Operate the appliance by turning the hot water services on to a high water flow, and observe the main burner. - Check that the flame covers all the flame ports and is of a light blue colour. Yellow flames and excessive lifting of flames indicate poor combustion. - IMPORTANT: After completing any servicing or replacement of gas carrying components it is essential that a test for gas soundness is always carried out along with functional checks in operation. 7.2 7.2.1 TO INSPECT AND CLEAN THE APPLIANCE Before carrying out cleaning operation, cover the electrical control panel with a piece of waterproof material to protect it from debris. Inspect the heat exchanger for any blockage. Deposits of any material should be brushed always using a soft brush. NOTE: Do not use brushes with metallic bristles. Examine internal pipe-work connections and automatic air vent for any water leaks. Rectify if necessary. Examine the combustion chamber insulating material and renew if damaged (sect. 7.9). Remove and examine the main burner injector and pilot injector clean or renew, as necessary (sec. 7.12 & 7.14). Inspect the main burner and remove any deposit with a soft brush. Check the electrodes for damage or deterioration, clean or renew as necessary. Ensure that the spark gaps are correct to dimensions specified in sec. 7.15.
7.2.2 SECTION 7 SERVICING INSTRUCTIONS
7.2.3 Ravenheat are a member of the Benchmark initiative and fully supports the aims of the programme. Benchmark has been instructed to improve the standards of installation and commissioning of central heating systems in the UK and to encourage the regular servicing of all central heating systems to ensure safety and efficiency. 7.1 7.1.1 SERVICING To ensure continued efficient operation of the appliance it is necessary to carry out servicing and cleaning at regular intervals. The frequency of cleaning will depend upon the par-

7.8.10 TO REMOVE/REPLACE THE FAN ASSEMBLY (Fig. 58) 7.8.11 Remove front casing (sect. 7.3). Remove combustion chamber front cover as in (sect. 7.4). Disconnect the electrical connections from the fan motor. 7.8.13 7.6.4 Support the fan and remove the two fixing screws and bracket from the front of the flue hood. Carefully withdraw it from the appliance. Place in a safe place until required. Reassemble in reverse order. Ensure wires are connected correctly (Fig. 94). TO REMOVE/REPLACE THE FLUE HOOD (Fig. 60) Remove front casing (sect. 7.3). Remove combustion chamber front cover as in (sect. 7.4). Remove the fan (sect. 7.6). Remove the three screws on the front that fasten hood to the combustion chamber. Remove the two screws at the rear of hood. Pull the flue hood upwards and then remove. Replace in reverse order. 7.9.2 7.8.12

7.9 7.9.1

TO REMOVE/REPLACE COMBUSTION CHAMBER INSULATION PANELS (Fig. 64). Removecasing front panel (sect. 7.3). Remove combustion chamber front cover (sect. 7.4). Remove fan assembly and flue hood (sect. 7.6 & 7.7). Remove main burner (sect. 7.15). Remove top insulation pieces at sides. Remove 2 screws securing combustion chamber. To rear of boiler and lower chamber carefully remove all insulation panels. Replace in reverse order.

7.7 7.7.1

7.7.2 7.7.3 7.7.4 7.7.5 7.7.6

7.10 7.10.1

TO REPLACE THE ELECTRODE (Fig. 66) Remove front casing (sect. 7.3). Remove combustion chamber front cover (sect. 7.4).

Fig. 60

Fig. 58

Fig. 62

Fig. 63

Fig. 66

7.10.2
Detach the wire from electrode and then unscrew the nut that secures it to the pilot burner assembly and remove. Replace with new electrode in reverse order. TO REPLACETHE PILOT INJECTOR (Fig. 68) Remove the front panel of the casing and the combustion chamber front cover (sect. 7.3 & 7.4). Remove the lower grating (sect. 54.2). Release the fitting that secures pilot pipe at the gas valve. Remove electrode (sect. 7.10) Unscrew pilot connection from pilot burner. Pull the aluminium tube downwards and the injector should come out by itself. Replace in reverse order. TO REPLACETHE PILOT BURNER Remove the front panel of the casing and the combustion chamber front cover (sect. 7.3 & 7.4). Remove the electrode and pilot injector (sect. 7.10 and sect. 7.12). Remove the two screws securing pilot burner to main burner (Fig. 69). Replace in reverse order.

7.10.3 7.12 Fig. 64 7.12.1
7.12.2 7.12.3 7.12.4 7.12.5 7.12.6 7.13 7.13.1

7.13.2 7.13.4 7.13.5

7.14 7.14.1
TO REMOVE REPLACE THE MAIN INJECTORS Remove the front panel of the casing and the combustion chamber front cover (sect. 7.3 & 4). Remove the pilot burner assembly as described in sect. 7.13. Unscrew the union (Fig. 70). Unscrew the 4 screws securing the injector manifold to the burner (Fig. 71). Pull the manifold up and out from the combustion chamber (Fig. 72). Unscrew and replace the injectors and their seals (Fig. 73). Replace in reverse order. Relocate the grommet, sealing the gas supply pipe to the casing taking care not to damage it. Replace if necessary.

Fig. 69

7.14.2 7.14.3 7.14.4 7.14.5 7.14.6 7.14.7

Fig. 70

Fig. 68

Fig. 71

7.15 7.15.1
TO REMOVE/REPLACETHE MAIN BURNER Remove the front panel of the casing and the combustion chamber front cover (sect. 7.3 & 7.4). Remove the pilot burner assembly as described in sect. 7.13. Remove the injectors manifold as described in sect. 7.14. Remove the two screws securing the main burner to the combustion chamber (Fig. 74). Pull the burner forward and remove (Fig. 75). Replace in reverse order. IMPORTANT: When refitting the burner make sure that the pins at the rear of the combustion chamber locate into the slots made on the rear of the burner.
7.15.2 7.15.4 7.15.5 7.15.6 7.15.7
7.16 7.16.1 7.16.2 7.16.3
TO REMOVE/REPLACE THE GAS VALVE (Fig. 51) Remove front casing panel (sect. 7.3). Push the 2 plastic clips that fasten the instrument panel (Fig. 23). Lift the instrument panel to detach it from the sides, and lower it down by rotating it on its own hinges (Fig. 25). Pull the 2 wires from the Modulator. Remove the electronic ignition board (7.32.213). Remove the lower grating (sect. 5.4.2). Unscrew the pilot burner tube connection. Remove the eight screws (four per side) that connect the gas valve to the gas pipelines and then remove it from its seat. Replace in reverse order, always using new seals. TO REMOVE/REPLACE THE HEATING CONTROL AND DOMESTIC HOT WATER CONTROL Remove the front panel from the outer casing (sect. 7.3) and lower the instrument panel (sect. 7.16.2 & 3) and remove the control box cover (7.31.2/3). Pull off the thermostat knob (Fig. 78). Remove the lock nut and remove the control board (PCB) Detach the wires by unclipping the connector from the control board (Fig. 79).
7.16.4 7.16.5 7.16.6 7.16.7

7.16.8 7.19

Fig. 75

7.19.1

7.19.2

7.19.3

7.19.4 7.19.5 7.20 7.20.1
Unscrew the lock nut which fastens the potentiometer to the instrument panel (Fig. 78). Replace in reverse order TO REMOVE/REPLACE THE MAIN SWITCH (Fig. 82). Remove the front panel from the outer casing (sect. 7.3), lower the instrument panel (sect. 7.16.2 & 3), remove the control box cover (7.31.2/3) and remove the control knob. Detach the wires that connect to the switch - make sure that these wires are later reconnected to the same poles (Fig. 94). Pull the switch out from the instrument panel by pressing the clamp springs. Replace in reverse order TO REMOVE/REPLACETHE WATER PRESSURE GAUGE (Fig. 83). Remove the front panel from the outer casing (sect. 7.3) and lower the instrument panel (sect. 7.16.2 & 3). remove the lower grating (sect. 5.4.2). Close the heating system on/off valves and drain the water from the drain point on the heating system (Fig. 93).

7.29.5 7.29.6

7.29.7 7.29.8 7.30 7.30.1

7.30.2

7.30.3 7.30.4 7.31 7.31.1
7.31.2 7.31.3 7.31.4 7.31.5

Fig. 87

Fig. 93

Fig. 91

Section 8 FAULT FINDING CENTRAL HEATING
Switch on Select Winter Central Heating Stat to maximum Ensure external controls calling for heat (Room Stat/Time Clock/TRV
FAULT FINDING DOMESTIC HOT WATER
Before continuing it may be necessary to see Central Heating Fault Finding. Select only (Summer) Domestic Hot Water. Open Domestic hot tap close to appliance.
9 ELECTRICAL SYSTEM DIAGRAM

Fig. 94

SECTlON IO

EXPLODED PARTS DIAGRAM

RAVENHEAT RSF 82 E - RSF 82 ET FANNED COMBI BOILER SHORT LIST OF SPARE PARTS

Ravenheat Part. No.

0014FR006005/0 0012COM06005/0 0012P0T05005/0 0007TER0301O/O 5027055. 0007TER05005/0 0014VETO1005/CAP05005/0012CIR05005/0 0014MAN06015/0 0012CIR05016/0 0012GEN0008VALO3005/0 0008VALO5005/0003PIL05010/0 0002SCA0501O/O 0014REGO1005/5018030 1012VEN01006/5095025 0012FUSO5015/0014GUA01020/0 0001CAM05010/0 5012096

18.22 22.25.48

G.C. Part. No.
E23-711 E23-712 E23-372842 E23-E23-E24-627 E23-718 E24-E23-E23-371277 372856

Description

Instrument panel - TIMER MODEL Main switch DHW / C.H. Potentiometer Overheat thermostat ! Water gauge D.H.W. / C.H. Sensor Sight glass Flue gas exhaust hood Fuse 315 mA Printed control board Knob Printed ignition board Honeywell printed ignition board Combustion chamber cover Gas valve Honeywell gas valve Pilot burner Pilot burner for Honeywell gas valve Heat exchanger Water flow regulator Connecting pipe to air purge Air purge valve Gasket 18.5 x 11.6 x 2 Gasket24x15x2 Fan 82 ET Gasket 30 x 22 x 2 Insulation pads set Internal fuse 2A Depression chamber pilot seal Flue gasket Depression chamber Nozzle 0,27 for natural gas

8 5012210

G.C. Part. No. 372892
372864 372-372874 E23-723 E23-E24-372880 E23-372899
Ignition electrode Cable for electrode Nozzle 1,35 for natural gas Frame. Seal Main burner 3-way valve Seal 32 x 32 x 2 gas valve Low water pressure switch Circulation pump Gasket 48 x 42 x 1 Brass manifold Safety relief valve (3 bar) Internal fuse 4A Nylon tubes from pressure switch Pressure switch Elbow header Flue extension duct complete Flue duct and terminal complete Expansion tank Air restriction ring dm 79 Digital timer Vertical flue terminal complete Diaphragm for 3-way valve Microswitch for 3-way valve