53
Danger
Contact with 'live' components can lead to seri-
ous injury from electric current.
■
Never touch
the wiring chambers (for heat
pump control unit and power supply connec-
tions, see page 28).
■
When working on the appliance, isolate the
system from the power supply, e.g. at a sepa-
rate MCB/fuse or a mains isolator. Check that
it is no longer live. Safeguard against recon-
nection.
Danger
The absence of component earthing can result
in serious injury from electrical current and in
component damage in the event of an electrical
fault.
All earth connections
must
be restored.
!
Please note
Commissioning immediately after installation
can lead to appliance damage.
Wait
at least 30 min
between installing and
commissioning the appliance.
1.
Remove front panel in reverse order: See page 51.
2.
When work is complete, close the heat pump: See
page 51.
For commissioning the appliance
"Vitotronic 200" operating instructions
Writing reports
Enter all readings taken during commissioning (descri-
bed below) in the reports on page 112 onwards.
Checking the refrigerant circuit for leaks
Danger
The refrigerant is a non-poisonous gas that dis-
places air. Unregulated escape of refrigerant in
enclosed spaces can lead to breathing difficul-
ties and suffocation.
■
Ensure adequate ventilation in enclosed
spaces.
■
Always observe regulations and guidelines on
handling this type of refrigerant.
Danger
Direct contact with refrigerant can be harmful to
skin.
Wear safety goggles and protective gloves when
working on the refrigerant circuit.
!
Please note
Refrigerant can escape when working on the
refrigerant circuit.
Work on the refrigerant circuit must
only
be car-
ried out by a certified contractor (in accordance
with EC 842/2006 and 303/2008).
Check the floor area, valves and all visible solder joints
for traces of oil.
Note
Traces of oil indicate a leak in the refrigerant circuit.
Have your heat pump checked over by a refrigeration
engineer.
Commissioning, inspection, maintenance
Opening the heat pump
5516461
Summary of Contents for BW 301.B06
Page 69: ...69 Fig 49 Maintenance Opening the casing door 5516461 Maintenance...
Page 76: ...76 Maintenance Condensation and moisture in the heat pump cont 5516461 Maintenance...
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Page 88: ...88 Parts lists type BWC 301 B Hydraulics type BWC 301 B cont 5516461 Components...
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