SOLARFOCUS octoplus, Руководство по установке

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Hydraulic connection
36 Installation manual octo
plus
6.5 Additional differential charging cir-
cuit Art.6152
This optional article is required for the following ap-
plications:
- Charging the octo
plus
through an additional en-
ergy source, e.g. wood burning stove
- Charging an additional tank (buffer tank, DHW
tank) through the octo plus
- Connections used:
- Temperature sensor 1 = X44
- Temperature sensor 2 = X36
-
Switching output 230 V (circulation
pump/switching valve) = X7
6.6 Operating the octo
plus
without a so-
lar system
If the octo plus is operated without a solar system, the
following two points must be observed:
6.6.1 Leave the cover caps on the solar
coil connections
!
ATTENTION - If the solar coil is not con-
nected, then leave the factory-fitted sealing
caps (plastic) fitted to the solar flow/solar re-
turn connections. Failure to comply with this
poses a risk of corrosion damage.
6.6.2 Circulation pump for optimum tank usage (in the case of low return temperature)
- If the octo
plus
is used with low return temperatures (e.g. only underfloor heating) and without a solar system,
SOLARFOCUS recommends also installing a circulation pump between the upper and lower area of the
tank.
- This allows for considerably better use of the entire buffer tank volume and reduces the start/stop intervals.
- The circulation pump is controlled by means of the differential circuit function on the power element.
- To activate this differential circuit function, the
differential charging circuit on PE parameter must be activated
in the boiler control (is activated during the commissioning routine or is activated by the plant customer ser-
vice/specialist service partner).