Connections For The Ks Solar Pump Station - Buderus Logalux PL750 Installation And Maintenance Instruction

4.4

Connections for the KS Solar Pump Station

Warning: Potential system damage due to
very high temperatures and pressures!
V Use pressure and temperature resistant
piping connections.
V NEVER use any galvanized piping, con-
nections and graphite or plastic gasket
materials, PEX, plastic piping or connec-
tions of any such type unless approved for
temperatures > 392 °F (> 200 °C).
V When soldering piping connections, make
sure to use high temperature rated solder.
(Melt temperature > 455 °F (235 °C).
For proper, trouble free and efficient opera-
tion of the entire system make sure to proper-
ly vent the system.
Directions for proper system venting can be
found in the Installation Instructions of the KS
solar station.
V Connect solar pump station KS [4] to the lower coil
connections of the solar tank PL750/2 S to the con-
nections VSO (solar supply) and RSO (solar return).
V Connect the alternative back-up heat source to the
upper 1 ¼" tank connections (VS) according present
piping drawing.
V Install the return of the back-up boiler/heat source to
one of the lower 1 ¼" tank connections (RS) according
present piping drawing.
V Use piping connections made from copper, cast iron
pipe or non-galvanized steel material for connections
between the KS Solar Pump Station [4] and solar
combi-tank [5].
Grounding of water piping
Make sure to have all piping connections
done by a licensed contractor.
V Place a grounding strap on both the supply and return
piping to the tank. (Suitable location).
V Connect both grounding wires with a suitable heavy
gauge wire NYM (AWG16) to the main ground of the
electrical system.
Piping will receive an automatic air vent during
roof installation (accessory)
V Route the piping with a steady slope down from the air
vent. Install an air vent where necessary at every high
point in the piping system. (Temperature range up to
302 °F (150 °C)).
Logalux PL750/2 S - Changes may be made following technical improvements!
Fig. 15 Connections for KS Solar Pump Station
1 Supply piping from solar panels
2 Return piping to solar panels
3 Boiler or alternate heat source for back-up heating of
DHW
4 KS Solar Pump Station
5 Solar combi-tank
4
Tank Assembly
17