Opening The Heat Pump; Writing Reports; Checking The Refrigerant Circuit For Leaks; Charging And Venting On The Primary Side - Viessmann KWT Vitocal 300-G Pro Installation And Service Instructions Manual

Opening the heat pump

Danger
Contact with 'live' components can lead to seri-
ous injury from electric current.
Never touch the terminal areas for the heat
pump control unit and the mains connection, see
page 37.
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.
Remake all earth connections.
!
Please note
Wait at least 30 min between the installation
and commissioning of the appliance to prevent
equipment damage.
Work on the refrigerant circuit must only be
carried out by a qualified refrigeration engi-
neer.

Writing reports

Enter all readings taken during the commissioning
described below into the reports from page 80
onwards.

Checking the refrigerant circuit for leaks

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.

Charging and venting on the primary side

!
Please note
To prevent appliance damage,
charge the primary circuit before switching on
the power supply.
1. Check the Victaulic connections in the heat pump
for tightness. The Victaulic couplings must be form-
locked and fitted together seamlessly.
2. Check the pre-charge pressure of the expansion
vessel.
Commissioning, inspection, maintenance
1. Remove top panel; see page 53.
2. When work is complete, close the heat pump; see
page 53.
Regarding commissioning this appliance, see
also the operating instructions.
55