Installation manual

1 Customer Information
Envirosun TS Installation Manual Rev5b PVNW.docx Page 4
The solar collectors contain a multi tube copper water way system bonded to a solar
absorber plate, the combination of which collects solar energy and transfers it to the fluid
within the collector circuit. The absorber plate system is enclosed in an insulated metal
casing covered with a high strength toughened glass sheet that protects the absorber
system from physical damage.
1.3.2 Ancillary Energy Support (AES) Booster System
Electricity and gas are the two options for the AES system. An electric Ancillary Energy
Support (AES) system uses an electric element to heat part of the stored household
water on those occasions when there is reduced solar energy available e.g. cloudy days.
The electricity supply to the electric AES, located within the storage tank, is automatically
controlled by an internal thermostat. This thermostat will only allow the electric element
to operate if the storage tank water temperature falls below 60°C. It will only consume
electricity until the water temperature is increased to 60°C. At this stage, it will turn off
automatically.
Figure 1.3 Electric AES System Schematic
For gas AES systems the electric element in the storage tank is not connected to an
electricity supply. Instead a continuous flow gas water heater is fitted in series with the
hot water supply from the storage tank and the household hot water pipe system. As the
hot water from the solar storage tank passes through the gas heater its temperature is
automatically monitored. If the temperature is below 70°C, the gas heater will add the
heat required to deliver hot water of at least 70 °C. If the water temperature is above
70°C, the gas heater is programmed not to ignite.
Figure 1.4 Gas AES System Schematic