Lpg Commissioning And Testing - Lochinvar HERALD HCB46CE Installation Manual

18.3

LPG COMMISSIONING AND TESTING

The commissioning procedure on LPG is similar to that when the boiler is firing on Natural Gas. As such, the same
procedure should be followed taking in to account the following information:
18.3.1 LPG PRESSURE ADJUSTMENT AND COMBUSTION CHECKS
The Lochinvar herald series boilers are supplied with a pre-set gas/air ratio inlet assembly.
This must not be tampered with. Any attempt to adjust the gas valve or venturi will
invalidate the warranty.
Combustion figures should be as follows:
Model No.
HCB46CE
HCB61CE
HCB86CE
18.3.2 LPG COMBUSTION FIGURES
If the combustion figures are not within the range specified, contact Lochinvar Technical support for further guidance.
CO
2
10.5% 0.5%
10.5% 0.5%
10.5% 0.5%
CO
<100 ppm
<100 ppm
<100 ppm
64