Bosch TSS Series, Installation And Maintenance Instructions Manual

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Commissioning
TSS – 6720887693 (2018/10)
22
10 Commissioning
NOTICE:
Collector damage from evaporation in the solar circuit or frozen
water!
▶ Only flush and fill the solar thermal system when the sun is not
shining on the collectors and no frost (if purging with water) is
expected.
▶ Carry out tightness test. Observe the permitted pressures for all
assemblies.
Fig. 58 Check all connections for leakage
10.1 Lightning protection and equipotential bonding
Necessity of lightning protection
▶ Check regional regulations as to whether a lightning protection
system is required.
The lightning conductor is often required in the following cases:
• Building height of over 20 m
• Buildings that are significantly taller than surrounding buildings
• Buildings considered in need of high protection
(e.g. schools, hospitals and high-rise buildings)
Equipotential bonding for the thermal solar system
If a lightning protection system is installed or required:
▶ Establish whether the thermal solar system is located outside the
protective area of the existing lightning protection system.
▶ Have a qualified electrician check the connection of the system to this
equipment.
▶ Earth the installation system and metallic potable water pipes with a
ground wire (e.g. copper ≥ 16 mm
2
) to the equipotential rail.
▶ Lightning protection must only be installed by a qualified electrician.
Fig. 59 Possible connection of the lightning protection system to the
storage tank profile rail
10.2 Filling the potable water circuit
CAUTION:
Risk of injury from falling storage tank.
Only filling with water ensures sufficient stabilisation of the storage tank.
▶ Never leave the system before the filling process of the potable water
circuit has been completed.
▶ Install a filter if required.
▶ Turn on the DHW tap until the pipework is filled.
10.3 Filling the solar circuit
CAUTION:
Risk of injury from contact with heat transfer medium!
▶ When handling heat transfer medium, always wear protective gloves
and goggles.
▶ If heat transfer medium comes into contact with skin: wash the
affected areas with water and soap.
▶ If heat transfer medium comes into contact with eyes: holding eyelids
wide open, thoroughly wash eyes with running water and consult a
doctor.
▶ Operate the thermal solar system using heat transfer medium L.
Other heat transfer media are not permitted.
The heat transfer fluid is pre-mixed and ready to use (70 % water, 30 %
propylene glycol). It guarantees safe operation down to -14 °C, protects
the system from frost damage and ensures high steam safety.
Water as a heat transfer medium

section "Intended use".
NOTICE:
Risk of property damage from unsuitable heat transfer medium.
Using an unsuitable heat transfer medium can damage the thermal solar
system through frost or chemical reactions.
▶ Only fill the thermal solar system with a heat transfer medium
approved by the manufacturer.
▶ Do not mix different heat transfer media together.
▶ If the thermal solar system is not in use for more than 4 weeks: cover
the collectors.
The heat transfer medium is biodegradable. A safety data sheet with
further information can be requested from the manufacturer.
Table 14 Required amount of heat transfer medium
▶ Fill the storage tank with heat transfer medium L from the top until it
begins escaping from the filler.
0010014919-01
0010016089-01
TSS150 TSS200 TSS300
8 l heat transfer
medium 9 l heat transfer
medium 12 l heat transfer
medium