STIEBEL ELTRON SE FLOWSTAR PUMP STATION - Manual (Page 7)

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INSTALLATION INSTRUCTIONS
SE FLOWSTAR PUMP STATION - 221337
3.3 Wiring the pump
1. Remove the screw from the pump housing. Connect
an 18 gauge wire to the pump wiring block by threading
it through the waterproof nut at the bottom of the pump
housing. Be sure to connect the colored wires in the correct
manner.
2. Close the pump housing, and reattach the front cover of
the pump station.
3. Connect the pump wire to the solar controller. The solar
controller should be installed and at this point, as it will be
necessary to manually run the pump later in the installation
process.
4 Commissioning
Before commissioning the pump station, read and observe
the following safety instructions:
A. Risk of burns and scalding.
The valves and fi ttings may heat up to more than 212
(100C). During fl ushing, fi lling and venting, the solar fl uid
can escape as vapor and result in scalding. Flush and fi ll the
system only if the collector temperatures are below 150F
(70C).
B. Propylene glycol safety.
Propylene glycol is hazardous in the case of ingestion. It is
an irritant when it comes into contact witht he eyes or skin.
Always wear chemically resistant protective gloves and
safety glasses with side-shields when handling propylene
glycol mixtures.
Observe the instructions and specifi cations of the antifreeze
from the manufacturer.
C. Risk of frost.
It often happens that solar thermal systems cannot be
completely drained after fl ushing. There is a risk of frost
damage when fl ushing with water.
Therefore, the solar thermal system should only be fl ushed
with water, immediately followed by the solar fl uid to fi ll the
system.
Use a water and propylene glycol mixture with max. 50%
propylene glycol as a solar fl uid, in order to avoid damaging
gaskets and seals.
4.1 Flushing and fi lling the solar circuit.
The fi ll and drain connections required for fl ushing and
fi lling are integrated into the solar station. In order to fl ush
any dirt particles that may still be present out of the system,
use only fl ush and fi ll stations equipped with suitable micro
fi lters.