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INTEGRA Solar User Manual Page - 5 of 8
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2.2 How Your Solar System Functions
The controller operating parameters should only be changed by a suitably trained technician.
The solar controller decides when to switch on/off the solar pump; it makes decisions based on a few factors.
The solar controller switches on the circulating pump when the temperature difference between the collector
and the lower part of the storage cylinder is greater than the specified value (
dT-MAX)
. While the pump is
running, the heated anti-freeze in the collectors is transferred to the lower coil in the cylinder. Here the heat is
transferred to the water in the cylinder. The cooler anti-freeze returns to the collector to be reheated. The pump
switches off again when the temperature difference between the collectors and lower part of the cylinder has
fallen below the appropriate specified switching value (
dT-Min)
.
2.3 Effective Use of Your Solar System.
Your solar system has been designed and installed for a long useful life.
Effective use and maintenance of your solar system will prolong its useful life. The following is a guide to
using your solar system.
1.
During periods of fine weather try use hot water daily.
2.
The hot water cylinder should have its own heating zone (including timer and tank stat). The cylinder
should only be heated in the evening provided the solar has not produced enough heat during the day.
3.
Try avoiding prolonged periods of solar idleness as this will degrade the solar anti-freeze quicker.
(if prolonged periods of idleness are common it may be advised to fit a heat dump in your solar circuit).
4.
Monitor the temperature produced in the solar circuit regularly and report any temperature excesses.
5.
Monitor the pressure in the solar circuit; report any decline in pressure, failure to do so may damage
solar pump station.
6.
As per NSAI standard recommendations, with regular use maintenance should be performed every year.
7.
Figure 1.0
Solar System Schematic.
