Unical Unisun Slim, Инструкция по установке и обслуживанию

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14
Do not remove the solar panel covers
until the system has been commissioned
to avoid burns during the commissioning
tasks and to avoid the formation of steam
inside the panel.
Before filling the circuit, never leave the
empty solar collector exposed to direct
sunlight.
Never perform the washing and filling pro -
cedures in conditions of direct radiation of
the collectors.
Size the expansion vessel appropriately
Perform a preliminary check as to the
correct installation of all hydraulic connec-
tions; in particular, make sure the air relief
valve (installed at the highest point of the
solar circuit) is not in operation.
(the cut-off valve of the air relief valve must
be closed when the operation is complete).
Check the tightness of the solar system
in advance.
Fill the system diaphragm expansion ves-
sel as follows:
1 Make sure the maximum operating pressure
of the expansion vessel (shown on the data
plate) is at least 6.0 bar.
2 Check what pressure the vessel has been
charged at (by the manufacturer)
3 Bring the pre-charge pressure value to at
least 2 bar using compressed air or nitrogen;
4
Increase this pre-charge by 0.1 bar for every
metre of difference in altitude between the
collector and the expansion vessel.
CAUTION
Observe the glycol percentage values
specified by the manufacturer when filling
the solar circuit.
3.6 - FILLING
3.6.1 - FILLING THE sOLAR CIRCUIT
DEsCRIPTION OF sOLAR MODULE
KEY
No.
Description
5 Valve / Thermometer
Solar panel return
6 Solar Control Unit
7 Thermostatic diverter mixing valve
8 Solar circuit pressure gauge
15 Flow rate limiter adjustment screw
16 Solar Circulation Pump
17 Flow Rate Meter
18 Service valve / connector for solar collector
filling
19 Service valve / connector for solar collector
filling