Filling The Potable Water Circuit; Filling The Solar Circuit - Bosch TSS Series Installation And Maintenance Instructions Manual

Commissioning
11.2

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.
11.3

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.
TSS150 TSS200
8 l heat transfer 9 l heat transfer
medium medium
Table 17 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.
26
Fig. 75 Filling with heat transfer medium
Installing a pressure relief valve on the solar circuit
Risk of scalding at the pressure relief valve!
The pressure relief valve opens if the pressure on the solar side exceeds
2.5 bar.
▶ Ensure that the liquid drains away in a controlled manner.
▶ Avoid spending too much time near the system while it is operational.
▶ Install the provided 2.5 bar pressure relief valve at the top of the
To ensure that escaping heat transfer medium can be drained:
▶ Secure the pipework or other drainage valves [1] to the opening of
▶ Close the filler with the provided cap.
TSS300
12 l heat transfer
medium
Fig. 76 Installing a pressure relief valve and cap
WARNING:
storage tank.
the pressure relief valve and allow it to empty out into a temperature-
resistant container.
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0010014921-01 0010014921-01
TSS – 6720887696 (2018/05)