Baxi MainEco Heat 15 Service Manual download pdf (Page 43)

7215845 - 01 (08/14) MainEco Heat 43

Commissioning 7

7.5.1 Check the Operational (Working) Gas Inlet

Pressure

1. Ensure that all controls are calling for heat and maximum load

is applied to the system.

2. With the boiler operating in the maximum rate condition check

that the operational (working) gas pressure at the inlet gas

pressure test point is in accordance with B.S. 6798 & B.S. 6891.

This must be AT LEAST 17mb ! (Fig. 34)

3. Ensure that this inlet pressure can be obtained with all other

gas appliances in the property working.

Measure the Gas Rate

4. With any other appliances & pilot lights turned OFF the gas

rate can be measured. It should be as shown in Section 3.1

Technical Data.

5. 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.

7.5 Configuring the System

Check gas pressure here

Gas Cock

Gas Valve

Gas Meter

19-23 mbar

17-21 mbar

18-22 mbar

Working Gas Pressures

If the pressure drops are greater than shown

above a problem with the pipework or connections

is indicated.

Fig. 34

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 63 64

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Baxi MainEco Heat 15 Service Manual Page 43