If the boiler is to be left in service with the User, set the controls, clock if fitted, see User's Operating manual and room thermostat if fitted to the User's requirements. Page Boiler Operation In both modes the fan operates at full speed before the burner lights, remaining at that speed until the demand is satisfied.
When the burner is turned off, the fan will continue to run for 20 seconds and the pump will stop immediately if the selector is set for hot water only. Page Routine Servicing 2. The expansion vessel pressure test point is accessible from the top and rear of the boiler.
Record details of the service in the Service History section on page 34 of this manual and in the Benchmark Log Book. Page 19 Place the front case panel in position as shown in Fig. Raise the control panel and secure in position with the two screws provided. Check the operation of the boiler. Refer to Boiler Operation, section 6. Return all controls to their original settings. Page Component Replacement Fit the new electrode, ensuring both are positioned correctly and the spark gap is correct see Fig.
Re-assemble Replace the burner, ensuring it is located correctly. Replace the combustion chamber front cover, ensuring it is correctly located. Complete re-assembly as described in Routine Servicing, section 7. Page 21 Gain access to the combustion chamber as in section 8.
Disconnect the wiring from the overheat thermostat. Remove the two fixing screws and remove the overheat thermostat from the heat exchanger. Fit the new overheat thermostat and re-assemble in reverse order. Page 22 Gain access behind the casing as in section 8. Remove the rubber window frame and remove the damaged glass. Re-assemble in reverse order with a new glass.
Ensure the rubber frame is located correctly in the front panel. Page 23 Fit the flow and return pipes to the new heat exchanger, ensuring the new 'O' rings are in position in the flanges. Lubricating the 'O' rings with a soap solution will aid assembly. Ensure the heat exchanger is correctly located. Re-assemble in reverse order. Refill and pressurise the system. Refer to Commissioning, section 5. Page 25 Note: Be careful not to allow water to drip onto any electrical components.
Using the new washers supplied, re-assemble in reverse order. Wall mounted, fan assisted, room sealed, gas fired system boiler 36 pages. Wall mounted, gas fired combination boiler for use with natural gas only 61 pages. Wall mounted, fan assisted, room sealed, gas fired, high efficiency condensing boiler 44 pages.
Page 3: Lighting Instructions 5. Illuminated continuously - Burner is alight. Flashing on and off - Temperature sensor fault, contact your Service Engineer. Flashing on and off - Overheat thermostat has operated.
With the switch set to hot water only the boiler will only operate to provide domestic hot water, ideal for Summer use when central heating is not required. Setting the selector switch to central heating and hot water the boiler will operate to provide both central heating and hot water. Page 5: Gas Safety Regulations 4. Contact your plumbing merchant or installer for advice when considering purchasing such items.
Do not use abrasive cleaners. Page 6 3. If you cannot find what you're looking for please do not hesitate to contact us. We are here to help, if you have any questions you can call us on If you would like to get in touch online you can email us at info alpha-innovation. We use cookies to improve your experience, including to personalise content, to provide useful features, and to analyse our traffic and measure performance.
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