Mountfield SPIRAL, Инструкция по установке и эксплуатации

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DO I NEED A SPECIAL PUMP?
As long as the pump of the fi ltering
system is in working order, there will be no
problem to install the solar water heating
system near the fi lter unit and the pool.
The heating system puts only minimum
restriction on the free water fl ow rate and
the pump will not be overloaded.
However, in the case the heating unit
is installed in a distance from the pool or
at a higher level above that of water in the
pool, a specialist should be consulted in
respect
of system installation.
The operational maximum pressure
of the solar water heating system is 2 bars.
WHAT SIZE OF THE SWH SYSTEM
SHOULD I INSTALL?
In order to maintain the effi ciency
of water heating it is recommended to install
3 SWH units for the pools of the volume
up to 20 m
3 and 4 mutually interconnected
SWH units for the pools of the volume of
water up to 30 m
3 . Individual solar heating
units can be interconnected using pool
hoses; the systems should be interconnected
in parallel.
In case a lower number of heating units
has been installed, than it really corresponds
to the size of your pool, the result of such
installation will not be satisfactory.
In the areas characterised by colder and
shorter summer periods the installation
of more SWH units is recommendable.
WHICH COMPLEMENTARY PARTS ARE
REQUIRED FOR INSTALLATION?
The suffi cient length of a hose or tubing
shall be required for system installation. In
respect of any other method of installation
than by the use of enclosed feet a specialist
shall be consulted. A solid installation
made of PVC pipes is recommended for
the purpose. Connecting fi ttings and PVC
adhesive shall be required for the purpose.
The parts made of PVC-U should be used
only with caution, as the temperatures of
materials close to the heating unit can rise
up to about 80°C.
WHAT ABOUT THE SOLAR CANVAS?
The canvas will retain heat in the pool
during the night, which is particularly
advantageous at the beginning and before
the end of the bathing season. The solar
canvas should be removed from the pool for
hot summer days, because direct sunlight
will heat water in the pool to a larger depth
than through the solar canvas. The solar
canvas can be used in combination with solar
heating. The canvas will retain heat during
nights and the SWH system will heat water
during day hours.
CONNECTING THE HEATING SYSTEM
Connect the solar heating system to the
outlet tube of the fi lter unit. No component
featuring hydrodynamic resistance, incl. any
valve, fi lter vessel, etc., that would cause
any pressure increase in the SWH heater
shall be installed between that element
and the return nozzle found in the pool.
The recommended connection of the SWH
system is shown on the title page of this
Instruction.
WHAT IS THE REASON FOR INSTALLING
THE MANUAL BY-PASS LINE?
The solar heating system works
satisfactorily only if exposed to direct
sunlight. In the night the temperature of
ambient air will drop down causing the
system to operate as a cooler of the water
content of the pool.
The manual by-pass line makes it
possible to put the system out of operation
for the time, in which conditions for the
solar heating system are unsuitable (for
instance at the time of fi ltering in the night).
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