Releasing The Outdoor Unit Transport Bracket; Testing The Refrigerant Circuit - Viessmann VITOCAL 151-A Installation And Service Instructions Manual

Checking all connections on the heating water...
!
Please note
Leaking hydraulic connections lead to appliance
damage.
■ Check the internal and on-site hydraulic con-
nections for leaks.
In the event of leaks, switch off the appliance
■
immediately. Drain the heating water. Check
the seating of seal rings. Always replace dis-
placed seal rings.

Releasing the outdoor unit transport bracket

!
Please note
Premature loosening of the transport bracket
may cause damage to the outdoor unit.
Only release the transport lock once the sys-
■
tem has been completely filled and vented.
■ Re-engage the transport lock before topping
up heating water.
Fig. 64
To release the transport bracket securing screw
with an Allen key (size 5), turning it fully to the right.

Testing the refrigerant circuit

Pressure equipment in the refrigerant circuit according to Pressure Equipment Directive 2014/68/EU:
Pipework
Pipework according to article 4, para-
graph 3
Pipework evaporator
A
A
7
max
Commissioning, inspection, maintenance
(cont.)
PS x DN
< DN 25 < 546 barmm
DN 32 970 barmm
Category
—
I
83