Lochinvar HERALD HCB116CE, Installation Manual

Page: 62 / 92

62
18.0 LPG FUEL
It is strongly recommended that, on LPG installations, gas detection equipment is fitted. This
equipment should be positioned near the appliance and at low level. It is also important that
the space housing the appliance is adequately ventilated at high and low level. This appliance
must not be located below ground e.g. in a cellar.
18.1 RELATED DOCUMENTS
In addition to those documents listed in Section 5.1: RELATED DOCUMENTS within the main body of the installer’s
guide the gas installation should also comply with the guidance offered in the following documents.
BS 5482-1: 2005 Code of practice for domestic butane and propane gas burning installations.
Part 1: Installations at permanent dwellings, residential park homes and commercial
premises, with installation pipework sizes not exceeding dn25 for steel and dn28 for
corrugated stainless steel or copper.
The operation of the Herald range on LPG-Propane (3
rd
Family) 3P is similar to that on Natural Gas (2
nd
Family) 2H and
the design and installation details described in the main body of the installer’s guide should be followed.
18.2 CONVERSION TO LPG
This process must be carried out in the order stated before the boiler is switched on. Failure
to follow the following procedure may lead to non-warrantable damage to the boiler. The
conversion must be carried out be a competent person certified for work on LPG fuel.
In the event of any seal or gasket being broken it is essential that the seal or gasket be
replaced. Contact Lochinvar limited for replacement seals and gaskets.
Model Part No. Stamp Size
HCB46CE ORF2022 150 4.98

0.025
HCB61CE ORF2023 210
5.56

0.025
HCB86CE ORF2024 285 6.76

0.025
18.2.1 LPG ORIFICE MARKINGS