Operation; Flushing And Filling The Solar System - Resol SBS 2000 Manuel Pour Le Technicien Habilité

4

Operation

1.
Î Fill the tank of the filling and flushing station with a
sufficient amount of fluid.
Î Make sure the tank is filled at least to the MIN
marking (5l)
note
Make sure the fluid is always above the MIN
mark in order to prevent air intake.
Litres US gallons Imperial gallons
5 1.32 1.10
7.57 2 1.67
10 2.64 2.20
15
3.96 3.30
15.14 4 3.33
20 5.28 4.40
6
22.71 5.00
25 6.60 5.50
30 7.92 6.60
30.28 8 6.66
Volume conversion table
(numbers in bold print are
marked on the scale of the station tank).
4.1

Flushing and filling the solar system

WArnIng! risk of scalding!
If the medium enters strongly heated,
empty collectors, pressure surges
caused by vaporisation can occur.
Î In order to prevent the me-
dium from boiling in the coll-
ectors, do not fill or flush the
system during times of strong
solar irradiation.
Damage to the device caused
ATTEnTIOn!
by underpressure!
If the lid is tightly closed, the tank
will be depressurised during the fil-
ling process.
Î Open the tank for the filling
process!
1 2
3
4
5
Example: Pump station with filling and flushing unit
note
In the following, the filling and flushing pro-
cess will be described using a filling and flush-
ing unit (see chap. „Accessories and spare
parts" Pagina 15). If the system has no fill-
ing and flushing unit, use the filling valve and
the drain valve of the system instead.
note
Do not put the solar pump into operation
during the flushing and filling process.
Î Disconnect the expansion vessel from the solar
thermal system.
Flushing hose
2.
Pressure hose
Î Connect the pressure hose of the filling and flush-
ing station to the filling valve (5) of the filling and
flushing unit.
Î Connect the flushing hose of the filling and flush-
ing station to the drain valve (3) of the filling and
flushing unit.
3.
Î Close the ball valve in the middle of the filling and
flushing unit.
Î Open the non-return-valves in the flow (1) and the
return (2).
Î Open the filling valve (5) and the drain valve (3).
ON
Î Switch on the filling pump.
6.
Î Flush the solar thermal system for at least 15 min-
utes by means of the filling and flushing station un-
til the discharged solar fluid is free of gas bubbles
and dirt particles.
Î During flushing, bleed the solar thermal system
several times until the discharged solar fluid is free
of air bubbles
13