Heatrae Sadia ELECTROMAX SOLAR Installation & Servicing Instructions Manual page 4

1.2 PRODUCT DESCRIPTION
The Electromax Solar is available in a number of capacities and configurations:
95 022 212 - 185 Litre, Radiator
95 022 214 - 220 Litre, Radiator
95 022 215 - 250 Litre, Radiator
95 022 312 - 185 Litre, Underfloor
95 022 314 - 220 Litre, Underfloor
95 022 315 - 250 Litre, Underfloor
95 022 216 - 185 Litre, Radiator, East / West Array
95 022 217 - 220 Litre, Radiator, East / West Array
95 022 218 - 250 Litre, Radiator, East / West Array
95 022 316 - 185 Litre, Underfloor, East / West Array
95 022 317 - 220 Litre, Underfloor, East / West Array
95 022 318 - 250 Litre, Underfloor, East / West Array
The Electromax Solar, when combined with a suitable Electromax Solar Collector kit, comprises
all the principle components to provide:
• An efficient solar thermal water heating system
• An electric back up water heating system
• An electric heated wet central heating system
The Electromax Solar has an unvented domestic hot water storage cylinder manufactured
from Duplex stainless steel and insulated with polyurethane foam.
The primary heat source is solar energy. The sun's energy is captured by a series of solar
collector panels ( supplied separately ) through which a special heat transfer fluid is pumped.
As the fluid passes through the collector panels its temperature is raised. The heated fluid is
circulated through a heat exchanger coil in the base of the hot water storage cylinder transferring
the heat gained to the stored water, gradually raising its temperature. The cooled fluid then
returns to the collector panel to be heated again.
The solar primary circuit includes a circulating pump, a flow meter, an expansion relief valve,
a manual air vent and two high temperature check valves, all factory fitted. Solar collectors,
solar expansion vessel and heat transfer fluid are supplied as separate accessory kits.
Temperature control of the solar circuit is provided by an electronic controller housed in the
main Electromax Solar control panel. Over-temperature protection is provided by a manually
re-settable double pole cut out.
In the UK a well designed solar system has the potential to deliver up to 60% of a dwellings hot
water requirement from solar energy, however this energy is not received uniformly throughout
the year (70% of the UK annual radiation is received over the period April to September and
25% is received in the months of June and July).
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