Inlet Gas Pressure

Fig. 40a

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.

26© Baxi Heating UK Ltd 2009

Page 25 Page 27
Page 26
Image 26
Baxi Potterton BBU 15 HE manual Test Point
Page 25 Page 27

BBU 15 HE specifications

The Baxi Potterton BBU 15 HE is a high-efficiency boiler designed to offer exceptional performance for both heating and hot water needs in residential settings. Known for its robust build quality and user-friendly features, this model is particularly favored for its versatility and reliability in various home environments.

One of the standout features of the Baxi Potterton BBU 15 HE is its compact size, making it suitable for installation in smaller spaces. Despite its small footprint, it delivers impressive outputs, making it ideal for homes with moderate heating demands. The boiler’s high efficiency rating ensures reduced energy consumption, leading to lower utility bills and a smaller carbon footprint.

Equipped with a powerful heat exchanger, the BBU 15 HE maximizes heat transfer, ensuring that households receive optimum warmth and hot water. With an output capacity of 15 kW, it can effectively heat a variety of living spaces while providing hot water on demand, making it a practical choice for families.

The boiler incorporates a number of advanced technologies that enhance its performance. One such feature is the built-in frost protection, which helps prevent the system from freezing during colder months. Additionally, the BBU 15 HE is designed for easy maintenance, featuring a simple access point for servicing, which can prolong the boiler’s lifespan and improve overall efficiency.

Safety is a top priority in any boiler installation, and the Baxi Potterton BBU 15 HE includes multiple safety features such as a pre-set temperature limit that prevents overheating and a pressure relief valve to manage excessive pressure within the system. These elements contribute to a safer home environment, providing peace of mind for homeowners.

Furthermore, the boiler is designed to operate quietly, minimizing disruptions in the home when heating systems are active. This is an important factor for many households where comfort is a priority.

In summary, the Baxi Potterton BBU 15 HE is a compact, efficient, and reliable boiler that provides an optimal solution for home heating and hot water needs. Its advanced features, safety systems, and user-friendly design make it a popular choice among homeowners, ensuring a cozy and comfortable living environment. Whether for a new installation or a replacement unit, this boiler stands out as a highly effective option in the market.
Top Page Image Contents