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Summary of Contents for Potterton Prima 30B
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Page 1: Installation And Servicing Instructions
30B, 40B, 50B & 60B balanced flue gas fired boiler THIS APPLIANCE IS FOR USE WITH NATURAL GAS (G20) ONLY Installation and Servicing Instructions LEAVE THESE INSTRUCTIONS ADJACENT TO THE GAS METER... - Page 2 Prima boilers are certified for safety, it is therefore important that no external control devices (eg. flue dampers, economisers etc.) be directly connected to these appliances unless covered by these installation instructions or otherwise recommended in writing. Any direct connection of a control device not approved by Potterton could invalidate the certification and the normal warranty.
- Page 3 ACCESSORIES - Page 3 The following range of Potterton Myson system controls are Thermostatic Radiator Valve. also available and further information will be provided on Electronic Cylinder Thermostat PTT2 or PTT1 00 request. Electronic Room Thermostat PRT2 or PRT1 00...
- Page 4 BOILER DIMENSIONS - Page 4 Figure 2 GENERAL ARRANGEMENT...
- Page 5 SITE REQUIREMENTS - Page 5 These boilers are not suitable for external installation. The 5mm (0.2in) each side of the boiler. appliance may be installed in any room, although particular 50mm (2in) at the top, except where the optional pump attention is drawn to the requirements of the current lEE cover is to be fitted, when 178mm (7in) should be allowed.
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Page 6: Electricity Supply
SITE REQUIREMENTS - Page 6 Figure 3 THE SITING OF BALANCED FLUE TERMINAL BOILER MINIMUM POSITION DISTANCE DIRECTLY BELOW AN OPENABLE WINDOW, AIR VENT, OR ANY OTHER VENTILATION OPENING BELOW GUTTER, DRAIN/SOIL PIPE BELOW EAVES BELOW A BALCONY OR CAR PORT ROOF FROM VERTICAL DRAIN PIPES AND SOIL PIPES... - Page 7 TECHNICAL DATA - Page 7 BOILER INJECTOR GAS RATE INPUT OUTPUT BURNER PRESSURE SIZE SIZE /h (ft kW(Btu/h) kW(Btu/h) mbar in wg 0.72 (25.68) 7.79 (26579) 5.86 (20000) 2.6mm 0.89 (31.75) 9.63 (32858) 7.33 (25000) 11.2 1.06 (37.88) 11.49 (39204) 8.79 (30000) 15.2 1.08 (38.55)
- Page 8 TECHNICAL DATA - Page 8 THE SYSTEM COMBINED GRAVITY HOT WATER AND PUMPED CENTRAL HEATING SYSTEMS The boiler must be used on INDIRECT hot water systems only. It is suitable for use on open vented gravity hot Where a cylinder thermostat and zone valve are fitted to water/pumped central heating systems or fully pumped control the temperature of the domestic hot water it is systems which may be sealed or open vented.
- Page 9 TECHNICAL DATA - Page 9 Specification for Domestic Wet Central Heating Systems’ If the system is extended, the expansion vessel may have should also be consulted. to be increased unless previous provision has been made for the extension. Where a vessel of the calculated size is not available, the next available larger size should be used.
- Page 10 TECHNICAL DATA - Page 10 Filling Point (approved by the National Water Council) to be fitted in this The system shall be fitted with a filling point at low level order from the system mains. refer to Fig 7 METHOD 1. which incorporates a stop valve to BS1010 and a double check valve Figure 5 OPEN VENTED FULLY PUMPED SYSTEM WITH A COMBINED FEED AND VENT...
- Page 11 TECHNICAL DATA - Page 11 Figure 7 FULLY PUMPED SEALED SYSTEM...
- Page 12 INSTALLATION INSTRUCTIONS - Page 12 It is the law that all gas appliances are installed and CARTON 1 serviced by competent persons as stated in the Gas Safety Boiler (Installation and Use) Regulations 1994. Template Side Infill Panels (2 off) Electrical installation and servicing should be carried out by Literature Pack containing: a competent person in accordance with the I.E.E.
- Page 13 INSTALLATION INSTRUCTIONS - Page 13 Figure 10 PREPARING BOILER The controls cover should have been removed when Remove door by undoing the two lower fixing screws and unpacking the boiler, if not pull controls cover forward lift door off the two upper hinge brackets. 25mm, lower to release from the four side fixings and pull forward clear of the thermostat knob.
- Page 14 INSTALLATION INSTRUCTIONS - Page 14 Figure 11 ATTACHING AIR BOX The flue system provided with the boiler is telescopic and For wall thicknesses between 100mm- can be adjusted to suit wall thicknesses of 230mm-380mm 175mm (4in-7in), the alternative telescopic (9in-l5in). Wall thicknesses down to 76mm (3 in)are catered Flue Kit can be used for additional convenience.
- Page 15 INSTALLATION INSTRUCTIONS - Page 15 Figure 12 LIFTING AND ALIGNING BOILER Lift boiler onto the mounting bracket and adjust the boiler Undo the screws securing the transportation feet. Discard position to obtain a minimum of 5mm clearance from any feet and screws. side wall or cupboard.
- Page 16 INSTALLATION INSTRUCTIONS - Page 16 Figure 14 ASSEMBLING INNER FLUE PRODUCT TUBE AND FLUEHOOD Pass Inner Flue Product Tube through hole in rear of boiler and secure using two 5mm screws from accessory pack C. Figure 13 SEALING AIR TUBE TO AIR BOX Refit fluehood.
- Page 17 INSTALLATION INSTRUCTIONS - Page 17 Figure 17 PIPE CONNECTIONS Connect the system pipework to the boiler, compression fittings are recommended. If however, capillary fittings are used, it is essential to temporarily remove the thermostat bulb from the flow pipe before soldering. A drain off tap should be installed close to the boiler if it is in a low point of the system.
- Page 18 Fig 21, suitable junction box or Potterton electronic Programmer. and connect it to the boiler input terminals as follows:- The principle of wiring is shown in Fig 19. It should be Permanent live to terminal marked MAINS ‘L’...
- Page 19 INSTALLATION INSTRUCTIONS - Page 19 Route a three core cable through the plastic bush in the rear of the control box and the cable clamp as illustrated in Fig 22. Connect the cable to the boiler input terminals as follows:- Switched live on the GRAVITY DHW control circuit to terminal marked MAINS ‘SwL’...
- Page 20 COMMISSIONING - Page 20 Open Vented Systems G. Partly depress and turn the control knob anti-clockwise Remove the pump and flush out the system thoroughly with until the symbol lines up with the datum mark on the cold water. Refit the pump, fill and vent the system and gas valve body.
- Page 21 See Fig 25 for inlet test nipple position. If this is correct 2) Flame Failure Valve contact Potterton Myson. Turn the gas control knob to the ‘off’ position. The pilot must shut down, and a “click” indicating thermocouple Boiler Thermostat drop out, should be heard within 60 seconds.
- Page 22 Servicing is best arranged by a contract placed Before the start of any servicing work, switch off at the with Potterton Myson Limited and further details are external electricity supply by disconnecting the plug at the available from the local Potterton Myson Service socket or switching off external isolating switch.
- Page 23 SERVICING INSTRUCTIONS - Page 23 1. PREPARING THE BOILER FOR SERVICING pilot assembly and lift out the pilot. Note, the pilot See Fig 27 injector sits loosely on top of the pilot tube, or may be retained in pilot head itself. Remove and inspect the A.
- Page 24 SERVICING INSTRUCTIONS - Page 24 Follow the full commissioning procedure as detailed in in place by the thermocouple lead. Withdraw the COMMISSIONING section of these instructions. thermocouple from grommet, noting the route the lead takes so that the replacement can be routed in a GAS CONTROL VALVE similar manner to eliminate sharp bends.
- Page 25 SERVICING INSTRUCTIONS - Page 25 SPARK GENERATOR Remove split grommet in the base of the boiler and the Carry out operations A,B,C in section 1 PREPARING split grommet from the side of the control box, and BOILER FOR SERVICE. feed thermostat capillary and bulb through holes. Remove rear locking nut securing spark generator to Replacement is the reverse of removal.
- Page 26 SERVICING INSTRUCTIONS - Page 26 Figure 28 FAULT FINDING CHART...
- Page 27 SERVICING INSTRUCTIONS - Page 27 SHORT PARTS LIST P.M. Part No. Part No. Pilot and electrode assembly S.I.T. (inc. items 2 907241 337 816 Pilot injector, 0.34mm S.l.T. 402926 381 949 Olive 402949 386 770 Tube nut 402948 386 771 Electrode 402885 395 720...
- Page 28 HEALTH AND SAFETY INFORMATION FOR THE INSTALLER AND SERVICE ENGINEER - Page 28 Under the Consumer Protection Act 1987 and section 6 of the Health and Safety at Work Act 1974, we are required to provide information on substances hazardous to health. Small quantities of adhesives and sealants used in the product are cured and present no known hazards.
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