Dimplex ESSW2 Manuel Du Propriétaire page 6

general Operating information
With the increasing concern for the health of our
environment and the awareness to reduce our car-
bon emissions, the need to use alternative sources
of energy is becoming more important. using a
Solar Domestic Hot Water System will assist with
that and reduce your household heating costs
throughout the year. The Dimplex
Hot Water System has received uS Energy Star
Rating Certification.
The Dimplex Solar Domestic Hot Water System
®
uses heat transferred from the sun to specifically
designed solar collectors, with high efficiency coils
to fully optimize the heat transfer, which are locat-
ed on your roof or any other southern facing sur-
face. The panel attracts the sun's rays and traps
them under a thick solar collector glass, increasing
the temperature of copper tubing, which is coiled
from top to bottom and heats the polypropylene
glycol mixture which is being pumped through
them, by a Solar pumping station.
The Solar pumping station, located within the
same area as your existing water heater, is a self
contained unit, equipped with a variable speed
pump to adjust the heat transfer speed within the
collection panels. The Solar pumping station al-
lows the user to monitor: the input and output tem-
peratures of the polypropylene glycol with temper-
ature measurement dials; the operating pressure
of the system; and the flow rate of the glycol on a
variable area rotameter. As a safety consideration
the pumping station is equipped with a Solar Loop
Expansion Tank and a pressure release valve to
compensate when the temperatures within the
system reach maximum capacity.
The Dimplex Solar Domestic Hot Water System
®
comes in two different configurations, for heat
transfer, depending on Local plumbing code re-
quirements: a Single Wall; and a Double Wall
System.
in Single Wall Systems, the polypropylene glycol
is then pumped directly from the Solar Collectors
and circulated through a heat transfer coil located
in the Solar Storage Tank to heat your household
potable water.
in Double Wall Systems, the polypropylene glycol
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Solar Domestic
®
is then pumped through a cross flow Solar pump-
ing Station - HXA, transferring the heat from the
glycol to Distilled water. The distilled water is then
circulated in a coil located in the Solar Storage
Tank to heat your household potable water.
The glass lined steel Solar Storage Tank is con-
structed with 2.4" (60mm) of insulation to reduce
the amount of heat loss and contains a heat trans-
fer coil to maximize the transfer of solar energy to
the water.
This Solar Hot Water System is controlled by com-
paring two temperature probes within the system:
one measuring the temperature at the outlet of
the Solar Collectors and one measuring the tem-
perature of the water located in the bottom of the
Solar Storage tank. As the temperature fluctuates,
between the temperature probes, the circulation
pumps will turn on and off to transfer the fluid
throughout the system and heat the water within
the Solar Storage Tank, to the desire temperature.
The Solar Hot Water System is used in conjunction
with your existing system (Back-up). When the so-
lar collectors are unable to provide sufficient heat
to reach set temperatures, your existing system
will supplement the generation of heat to obtain the
desired setpoint.
As an additional ability both the Solar pumping sta-
tion and the HXA pumping Station are engineered
with a flush and fill ability. Where a portion of the
circuit can be blocked and a external pumping sta-
tion can be attached to fill or drain that particular
circuit, without having to go on to the roof.
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