Installing Temperature Sensors; Commissioning; Environmental Protection/Disposal; Maintenance - Buderus P120.5 Installations- Und Wartungsanleitung

System components
Function diagram for connecting the buffer cylinder to the heat pump
( Fig. 9, page 45).
Item Description
1 Heat pump
2 Heating system
3 Additional heating system (in case of expansion)
4 Pump
5 3-way mixer
6 Buffer cylinder
Table 7 System components ( Fig. 9, page 45)
5.4

Installing temperature sensors

▶ Fit the temperature sensors ( Fig. 10 and 11, page 45).
Ensure that the sensor area has contact with the sensor
pocket area for the sensor's full length.
▶ Note sensor positions ( Fig. 2, [5] and [9], page 43).
▶ Observe heat pump or control unit installation instructions.
6

Commissioning

NOTICE: Cylinder damage resulting from positive
pressure!
▶ Never close the blow-off line of the safety relief valve.
▶ Commission all assemblies and accessories as specified in the
manufacturer's technical documentation.
Instructing users
▶ Explain the operation and handling of the heating system and buffer
cylinder, making a particular point of safety-relevant features.
▶ Explain the function and checking of the safety valve.
▶ Hand all enclosed documents over to the owner/operator.
▶ Highlight the following for the user:
– Water may be discharged from the safety valve during initial
heat-up.
– The safety valve discharge pipe must always be kept open.
– Where there is a risk of frost and when the user is briefly
away: Keep the heating system in operation and select the
lowest possible water temperature.
P120.5 | P200.5 | P300.5 – 6 720 819 267 (2018/08)
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Environmental protection/disposal

Environmental protection is a key commitment of the Bosch Group.
Quality of products, efficiency and environmental protection are equally
important objectives for us. Laws and requirements aimed at protecting
the environment are strictly adhered to.
To protect the environment we will, subject to economical aspects, use
the best possible technology and materials.
Packaging
Where packaging is concerned, we participate in country-specific
recycling processes that ensure optimum recycling. All of our packaging
materials are environmentally compatible and can be recycled.
Old appliance
Old appliances contain materials that should be recycled.
The relevant assemblies are easy to separate, and all plastics are
identified. In this manner the individual components are easily sorted
and added into the recycling and disposal systems.
8

Maintenance

With buffer cylinders, apart from visual checks, no particular
maintenance or cleaning work is necessary.
▶ Check all connections externally for tightness once a year.
▶ In the event of a fault, contact an authorised contractor or the service
department.
9

Decommissioning

WARNING: Risk of scalding from hot water.
▶ Allow the buffer cylinder to cool down sufficiently.
▶ Decommission the buffer cylinder together with the heat pump.
▶ Switch off the temperature controller at the control unit.
▶ Drain the buffer cylinder:
– Shut off the buffer cylinder ( Fig. 17, page 47).
– Open the air vent valve ( Fig. 2,[10], page 43).
– P120.5: drain using the drain valve on the buffer cylinder
( Fig. 2, [6], page 43).
– P200.5, P300.5: drain using own drain ( Fig. 18, page 47).
▶ Shut down all assemblies and accessories of the heating system as
specified in the manufacturer's technical documentation.
▶ Close the shut-off valves ( Fig. 18, page 47).
Commissioning 6
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