6
3.0
TECHNICAL DATA
Model Number
SST66
SST110
SST165
SST220
GENERAL DATA
Shipping Weight
kg
55
95
140
175
Full Weight
kg
355
595
840
1175
Immersion Boss
BSP
1x 2
¼"
1x 2¼"
1x 2¼"
1x 2¼"
WATER DATA
Water Content
Litre
300
500
700
1000
Max. Water Pressure
bar
6
6
6
6
3.1.1
TECHNICAL SPECIFICATIONS
4.0
GENERAL REQUIREMENTS
The Lochinvar SST direct storage vessel 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. PLEASE read the instructions fully before installing or using the appliance.
4.1
RELATED DOCUMENTS
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:
BS 6700: 1997
Design, installation, testing and maintenance of services supplying water for
domestic use within buildings and their curtilages
BS 7074: 1989
Application, selection and installation of expansion vessels and ancillary
equipment for Parts 1and 2 sealed systems
BS 7671: 2008
Requirements for electrical installations, I.E.E. wiring regulations
seventeenth edition
CP 342:
Code of practice for centralised hot water supply-buildings other than
dwellings
Part 2 1974
5.0
WATER QUALITY
Water supply quality may adversely affect the efficiency and performance of water heaters and hot
water systems. The situation can intensify where higher temperatures or demands exist.
Water hardness should not exceed 205ppm CaCO3 and TDS (Total Dissolved Solids) of untreated water
should not exceed 350ppm. If these values are exceeded, contact Lochinvar Limited for further
guidance.
Also Water hardness requirements stated in the Installation Commissioning and Maintenance
Instructions provided with the primary heat source (if not used as an electric storage vessel only) must
be taken into account, these requirements override the guidance given in this manual.
