Commissioning The Boiler - FULTON J Series Installation, Operation And Maintenance Manual

2.14

COMMISSIONING THE BOILER

Dual fuel boilers that use a common burner assembly and have a switch change over from one fuel
to another, have to be commissioned on the basis of a primary fuel (usually gas), with the secondary
fuel as a back-up. The primary fuel should be commissioned as 2.16 oil firing or 2.17 gas firing.
The secondary fuel then has to be commissioned using the air settings for the primary fuel. In practice
this means adjusting the fuel input of the secondary fuel to achieve acceptable combustion.
As more air is required for oil combustion the consequences are that when oil is the secondary fuel
there will be a small reduction in the fuel input rate.
It is essential that the commissioning procedures listed below are carried out by a Fulton Service
Engineer who will have the necessary experience and testing equipment to ensure that the installation
is not only correct, but is operating safely and at optimum efficiency.
Flue Commissioning
Prior to initial firing of the boiler, the flue must be checked for leaks.
This is done by BOTH of the following methods:
a. Visual Inspection
Check joints between all flue sections for quality of seals. Where the flue passes through the
structure of the building use your judgement as to the integrity of this section of the flue.
b. Smoke Test
With the flue capped, the drain stabiliser pipe (if fitted) blanked and a smoke generator inserted
into the flue, there should be no smoke visible from the flue.
If either of these tests fail or at any time during boiler operation, there is doubt about the
integrity of the flue, shut down the boiler and contact Fulton Ltd immediately.
Note: Flues that are designed to operate with positive pressure should be tested to the latest regulations.
J DUAL FUEL MANUAL 02 2014 ISSUE 9
2
Page 19