Alpha Solar SolaStat-Eco Руководство по установке - Страница 12
Просмотреть онлайн или скачать pdf Руководство по установке для Водонагреватель Alpha Solar SolaStat-Eco. Alpha Solar SolaStat-Eco 16 страниц. Solar hot water controllers installation guide
Печатать страницуSolaStat-Eco Pump ON / Pump OFF Adjustable Range.
Temperature
Deg. Celsius
Note. Pump ON / Pump OFF; Four Ranges available:
Notes on SolaStat-Eco Programming
Note: Also refer Principle of Operation.
Pump ON and Pump OFF.
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Technically Pump ON and Pump OFF values are the 'ROOF' sensor temperature minus the 'INLET'
sensor temperature and are called differential temperatures.
Example. Pump ON = 12C and Pump OFF = 6C.
When the solar collector has risen to 12C hotter than the HWC the pump turns on.
When the solar collector has fallen to 6C hotter than the HWC the pump turns off.
In a high temperature system like domestic hot water relatively large Pump ON and Pump
·
OFF differentials like 12C Pump ON, 6C Pump OFF transfer hotter water over shorter periods of
time. Lower temperature systems like swimming pools or underfloor heating gain more energy
from the sun by transferring more water at lower temperatures and so have typical adjustable
values of 5C Pump ON and 2C Pump OFF.
Increasing the 'Pump ON' value will let the solar collector heat up more before heat is
·
transferred to the tank. The advantage is hotter water entering the tank but may mean less operations
and lost energy on partly sunny days.
Increasing the 'Pump OFF' value will mean the overall temperature of the water coming from
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the solar collector is hotter on average when the pump turns off. This will help overcome heat
losses in pipes ensuring the water entering the hot water tank remains hotter than the water
already there but may result in less energy being transferred as above.
The 'FROST' Adjustable Value is critical to avoid damage to solar collectors. The appropriate
·
value depends on installation variables such as geographic location, angle and type of solar collector,
sensor placement, fluid used, etc. All of these must be considered when determining the 'FROST'
value. This is the installers' responsibility. We recommend 4C as a minimum for the 'FROST'
Adjustable Value in mild frost areas only but this may need to be increased for some installations.
Topout is mainly needed for ceramic lined hot water tanks and other fittings and caution
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should be exercised to allow for stratification of hot water in the tank. We recommend a conservative
value somewhat lower than the hot water tank manufacturers' maximum temperature. It is vital the
sensor is mounted as recommend in the installation guide for topout to work correctly.
Roof Sensor
Pump ON
Roof Sensor
Pump OFF
Inlet Sensor
Pump ON = 12C,
Pump ON = 10C,
Pump ON = 8C,
Pump ON = 5C,
Solar Collector Temperature
Solar Collector Temperature
Cylinder or Pool Temperature
Pump OFF = 6 C.
Pump OFF = 5 C.
Pump OFF = 4 C.
Pump OFF = 2 C.
19.03-12
Pump ON
Pump OFF