Baxi Potterton BBU 15 HE manual Test Point

8.0Completion & Commissioning

8.2Commissioning the Boiler (cont.)

IMPORTANT:The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type specified on the appliance data plate. No measurement of the combustion is necessary. Do not adjust the air/gas ratio valve.

Having checked:

That the boiler has been installed in accordance with these instructions.

The integrity of the flue system and the flue seals, as described in Section 7.2.

Proceed to put the boiler into operation as follows:

Check the Operational Gas Inlet Pressure

14.Set the boiler to operate at maximum rate as described in Section 11.1.2 to 11.1.6.

15.With the boiler operating in the maximum rate condition check that the operational gas pressure at the inlet gas pressure test point is 20mb (Fig. 40a).

16.Ensure that this inlet pressure can be obtained with all other gas appliances in the property working.

Measure the Gas Rate

17.With any other appliances & pilot lights turned OFF the gas rate can be measured. It should be between 1.55 and 1.71m3/h.

18.Carefully read and complete all sections of the Benchmark Commissioning Checklist at the rear of this publication that are relevant to the boiler and installation. These details will be required in the event of any warranty work. The publication must be handed to the user for safe keeping and each subsequent regular service visit recorded.

For IE, it is necessary to complete a “Declaration of Conformity” to indicate compliance with I.S. 813. An example of this is given in I.S. 813 “Domestic Gas Installations”. This is in addition to the Benchmark Commissioning Checklist.

19.Disconnect the Boiler Control and fit the firefront in accordance with the instructions supplied with it.

IMPORTANT: The loose boiler serial number label supplied in the boiler kit must be applied to an area of the spacer frame that is visible to the end user e.g. lower right hand side.