Copyright © 2014
Ikhwezi Solar (Pty) Ltd, Novatherm CC, Solar Assist (Pty) Ltd
2
1.
Introduction
All NovaSun solar hot water systems are high quality thermal solar
systems, using advanced technology to convert light into heat. This
installation manual must be read and understood before undertaking the
installation of a NovaSun solar hot water system. Should any aspect of the
installation process remain unclear a NovaSun Solar representative should
be contacted for advice prior to installation.
This manual does not seek to provide comprehensive guidance in terms of
the general plumbing and electrical connection of geysers, which is
assumed knowledge and required of any registered installer, but rather
sets out to provide guidance in terms of the correct installation of the solar
thermal components of the system.
Systems must be installed by suitably qualified and registered plumbers
and electricians, in accordance with relevant South African Norms and
Standards, National Building Regulations, Law and Regulations, Local By-
Laws, including the following:
SANS 198 - Functional control valves and safety valves for domestic
hot and cold water supply.
SANS 10106 - The installation, maintenance, repair and replacement
of domestic solar water heating systems, edition three.
SANS10252 - Water supply and drainage for Buildings. Part 1 - Water
supply installations for buildings.
SANS 10254 - The installation, maintenance, replacement and repair
of fixed electric storage water heating systems.
SANS 10142 - The wiring of premises. Part 1 - Low-voltage
installations.
SANS 10400 - Parts A, B, L, XA.
Occupational Health and Safety Act (Act 85 of 1993)
National Buildings Regulations Act 103 of 1977
Water Services Act (Act N0 108 of 1977)
It is the responsibility of the installer to ensure that they and their staff
are familiar with and competent in respect of the above. Responsibility for
the safe and proper installation of a system rests with the installer.
The solar hot water systems referred to herein must be installed in
accordance with these instructions, local and national plumbing
regulations, municipal building codes and any other relevant statutory
regulations.
All intellectual property in this design and/or registrations and/or copyright
including any patent, patent application are the property of Novatherm CC
and/or WE Geysers (Pty) Ltd.
Observation of these instructions is most important and failure to do so
could void the benefits of the warranty.
The connection, attachment, integration or general association of other
equipment or parts which either directly or indirectly affect the operation
or performance of the solar system could void the warranty. Other such
equipment or parts not supplied by WE Geysers (Pty) Ltd, which may
affect its operation/performance must first be authorised by WE Geysers
(Pty) Ltd in writing if the full benefits of the warranty are to remain valid.
WE Geysers (Pty) Ltd does not accept liability or responsibility for the final
fitness of water for consumption from this water heater, as the water
quality is not affected by the system and is a function of the municipal
and/or other water supply.
This manual has been written with the intention of ensuring that the
system is correctly installed and that the owner/user is fully conversant
with the best methods of operation.
2.
System description
2.1
Configurations
NovaSun solar hot water systems utilise state of the art technology and
perform with high efficiency in a wide range of weather conditions.
Collector output is directly related to the amount of incoming solar
radiation striking the collectors. This installation manual covers the
installation of the following systems:
Model
Major System Components
NovaSun
150l
150 Litre Solartherm Direct Geyser
1 x 1.7sqm NovaSun Collector
NovaSun
200l
200 Litre Solartherm Direct Geyser
1 x 2 sqm NovaSun Collector
NovaSun
300l
300 Litre Solartherm Direct Geyser
2 x 2 sqm NovaSun Collectors
The models governed by this manual are pumped and thermo-siphon
systems. Thermisiphon systems may be installed in a close-coupled or split
system format whilst pumped systems are installed in split system format
and water is circulated using an applicable water circulation pump.
The NovaSun range of solar hot water systems are direct freeze resistant
systems.
System heating performance
Model
Q-Factor*
Energy
Rating**
NovaSun 150l
11.8
TBA
NovaSun 200l
16.3
TBA
NovaSun 300l
27.5
TBA
*The thermal performance of the systems have been established by the South
African Bureau of Standards in terms of SANS 6211, at an incoming radiation of 16MJ
per m² per day, a temperature differential of 10°C and at an inclination of latitude
plus 10°.
**Q-factor is calculated in mega-joules whereas the energy rating is calculated in
kilo-watt hours. The energy rating is calculated by converting the q-factor into kwh.
The specific thermal capacity of the NovaSun collector is 4.39KJ/K m².
3.
Health and safety
3.1
General
This appliance is not intended for use by young or infirmed persons
without supervision.
Scalding occurs at 50°C. This appliance is capable of providing hot water
over this temperature. In certain circumstances the system may expel hot
water and relieve pressure through the temperature pressure valve. Never
block this valve and always leave open to the atmosphere. Take care to
avoid contact with water when valve is in discharge.
This appliance is a water heating apparatus only and the final quality of
water and fitness for consumption is dependent on the quality of water
supplied to the system.
These systems are designed for the supply of hot water to domestic
household premises which have been constructed to the appropriate local
and national codes and regulations.
3.2
Installation considerations
All installations are to be carried out in accordance with the Occupational
Health and Safety Act (Act 85 of 1993) requirements and any relevant
local authority prescriptions. Some general points to take note of,
however, include the following:
