Writing Reports; Checking The Refrigerant Circuit For Leaks - Viessmann Vitocal 200-G Series Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Opening the heat pump
Danger
Contact with 'live' components can lead to seri-
ous injury from electric current.
■ Never touch the wiring chambers (heat pump
control unit and power supplies: See chapter
"Overview of electrical components").
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 the
system is no longer 'live' and safeguard
against reconnection.
■ Prior to working on the appliance, wait at
least 4 min until the voltage has completely
dropped out.
Danger
The absence of system component earthing can
lead to serious injury from electrical current and
component damage in the event of an electrical
fault.
All earth conductor connections must be recon-
nected.
The appliance and pipework must be connected
to the equipotential bonding of the building.
!
Please note
Commissioning immediately after installation
can lead to appliance damage.
Wait at least 30 min between installing and
commissioning the appliance.

Writing reports

Enter the readings taken during commissioning into
the reports from page 77 and the operator's log (if
available).

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.
52
!
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 Regulations EU 517/2014 and
EU 2015/2067).
1. Remove front panel: See page 13
2. If necessary, open the casing door: See page 14.
3. If necessary, open the wiring chamber: See
page 22.
4. When work is complete, close the heat pump: See
page 50.
Commissioning the appliance
"Vitotronic 200" operating instructions
!
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 Regulations EU 517/2014 and
EU 2015/2067).
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.
In the case of leaks, have the heat pump checked over
by a refrigeration engineer.