© RESOL 10263 flo
wcon_sensor
.monen.ind
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F lo w C o n S e n s o r / S e n s o r H E
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3.1 Flushing and filling of the system
3. Commissioning
fig.1
(1)
(2)
Î
Determine the mounting site of the station
Î
Take the station out of the packaging. Remove the front
half of the insulation (a) by pulling it backwards.
Î
Hold the enclosed wall mounting bracket (b) against
the wall and mark the fastening holes, drill holes and
insert wall plugs
Î
Fasten the wall mounting bracket to the wall with the
screws
Î
Push the station against the wall mounting bracket. The
station catches and is then attached to the wall
Î
Connect the station to the solar thermal system; ob-
serve the connections (d) and (e)
Î
Check the inlet pressure of the expansion vessel
and, if necessary, adjust it to the local conditions
(P inlet [bar] = 1 bar +
D
h [m]*1/10 (
D
h = height diffe-
rence between collector and station)
Î
Connect the electrical components of the solar station:
Attach the store and collector sensor and connect the-
se to the controller. Plug the controller into a socket
Î
Tighten all union nuts and screw connections
Î
Reattach the front half of the insulation to the station
Upon demounting, the clips (c) have to be removed.
2. Mounting the station
WARNING!
Scald danger!
Danger of severe application damage!
Flushing and/or filling the system on a
very sunny day can lead to a sudden
volatilisation of heat transfer fluid.
Î
Do not flush or fill the system
during periods of strong
sunshine!
ATTENTION! Frost damage!
It is impossible to completely empty a
solar system once it has been flushed.
If water is used for flushing the system,
frost damage can occur. Use heat trans-
fer fluid to flush and fill the system.
Î
Use a mixture of water and propyle-
ne or ethylene (max. 50 % propylene/
ethylene) as a heat transfer fluid!
Note
If the pump is to support the flushing and filling
process, the controller has to be commissioned
first! For detailed information see chap. 11.2.
(a)
(b)
(c)
Instructions for initial commissioning:
The optionally available flushing and filling unit should be
mounted horizontally at the lowest point in the return of
the solar circuit (see fig. 1).
A filter should be placed between the flushing and filling
station and the solar pump.
This flushing process is described in “3.1.1 Flushing the sy-
stem for initial commissioning”. Then continue as described
in “3.1.2 Bleeding and filling the solar system”.
flushing and filling unit
(d)
(e)
(d) connection for discharge pipe
(e) connection for expansion vessel