Lochinvar LOKE8-100, Installation, Commissioning, Maintenance And User Instructions, Page: 12 / 28

12
8.0 INSTALLATION
GENERAL REQUIREMENTS
The LOKE water heater has been designed to operate trouble free for many years. These instructions should be followed closely to
obtain the maximum usage and efficiency of the equipment.
RELATED DOCUMENTS
The installation of the equipment MUST be in accordance with the relevant requirements Building Regulations, I.E.E. Regulations
and the bylaws of the local water undertaking.
In addition, the installation should follow the relevant guidance offered in the following documents. It is not practical to list all relevant
information, but emphasis is placed on the following documents, as failure to comply with the guidance given will almost certainly
result in an unsatisfactory installation:
Regulation Description
BS EN 806 1-5 Specifications for installations inside buildings conveying water for human consumption.
BS 7671 :2008 + A3:2015 Code of practice for low temperature hot water systems of output greater than 45 kW.
BS 7074: 1989 Parts 1 and 2
Application, selection and installation of expansion vessels and ancillary equipment for
sealed systems.
BS 7671: 2008 + A1: 2011 Requirements for electrical installations, I.E.E. wiring regulations seventeenth edition.
BS 7671: Amendment 2: August
2013
BS EN 12828:2012+A1:2014 Heating systems in buildings. Design for water-based heating systems.
CIBSE: Guides
Part A Environmental Design
Part G Public health engineering
H.S.E. guidance
SAFED BG01Guidance on safe operation of Water Heaters
Manufacturer's notes must not be taken in any way as overriding statutory obligations.
WATER QUALITY
Water supply quality may adversely affect the efficiency performance and longevity of Water Heaters and Hot Water systems. Hard
water may cause the formation of lime scale which will reduce operating efficiency and may cause early product failure. Please note
the following: -
•
Water Hardness – should not exceed 205ppm CaCO3 and Total Dissolved Solids (TDS) of untreated water should not
exceed 350ppm.
If these values are exceeded a water treatment specialist should be consulted. Water Softeners and Water Conditioners
may be considered, but whichever method is selected, it should be suitable for installation with Direct Gas-fired Water
Heaters. A maintenance regime will also be required for such systems
•
High hot water temperature and high demand for hot water is likely to cause quicker limescale formation
The formation of limescale or other solids can cause a blockage within the heat exchanger, which in turn
may cause premature failure. Such instances are not regarded as defects in manufacture and will not be
covered under the product warranty.
LOCATION
The equipment must be installed on a level surface that is capable of adequately supporting its weight (when
filled with water) and any ancillary equipment.
Locate the equipment so that if the appliance or any connecting pipework should leak, water damage will
not occur. When such locations cannot be avoided it is recommended that a suitable drain pan be installed
under the equipment. The pan should be adequately drained.