gledhill Stainless Lite Direct 90-300 litres, Инструкции по проектированию, установке и обслуживанию

Страница: 16 / 32

Page 16
INSTALLATION
INST
ALL
A
T
ION
Schematic Solar Direct System
Solar Pumping Station
Solar Panel
Expansion
Vessel
Solar
Controller
Motorised Valve
Energy cut-out
(Not supplied)
All components in a solar primary system must
be marked or identifi able in such a way that
their design pressure and temperature can be
readily determined.
A safety device (pressure relief valve) to control
the risk of over-pressure in system components
should be fi tted. A termination from a safety
pressure device should minimise the risk of
damage to persons or materials. Suitable
locations are a high temperature receptacle, an
internal gully or else issue externally at ground
level. High level termination from walls or on
roofs could cause injury to people or animals
below if the valve were to release scalding water
and steam.
The pipe leading to the safety device and
the collector should be of rigid and non-
deformable construction, without any possibility
of restriction or disclosure by any other fi tted
component.
A more detailed diagram of our recommended
arrangement for a typical solar system is shown
on page 17.
This provides all the necessary controls and
safety devices necessary for the solar system i.e.
the two port zone valve is wired as an energy
cut out and the pump/valve will only allow heat
transfer as required under control of the Delta
Sol controller.
The pocket provided for the Dual Thermostat
also includes the facility to accommodate an
8mm diameter sensor which, with the sensor
located in the solar collector (or in the fl ow
pipe immediately adjacent to the collector), will
provide the information required by the Delta
Sol BS controller.
Note: If the motorised valve is not used then
any factory built hydraulic station for solar
use MUST be fi tted with suitable non-return
valves in both flow and return pipes to
prevent gravity circulation when the pump
is not running.
Schematic Solar Indirect System
Solar Pumping Station
Solar Panel
Expansion
Vessel
Solar
Controller
Motorised Valve
Energy cut-out
(Not supplied)
Motorised Valve
Energy cut-out
(Not supplied)