Checking Expansion Vessels And The Primary Circuit/ Heating Circuit Pressure; Commissioning The System - Viessmann Vitocal 350-G Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
!
4. Please note
To prevent equipment dam-
age, check the flow and return
connections of the heat pump
secondary circuit for leaks.
In case of leaks, switch off the
appliance immediately, drain
the water and check the seat-
ing of the seal washers.
Always replace displaced seal
washers.
Checking expansion vessels and the primary circuit/heating cir-
cuit pressure
Observe engineering informa-
tion.
Heat pump technical guide

Commissioning the system

Commissioning (configuration, parame-
ter settings and function checks) can be
carried out with or without the commis-
sioning assistant (see following chapter
and service instructions for the Vitotronic
200 heat pump control unit).
Commissioning with commissioning assistant
The commissioning assistant guides you
automatically through all the menus
where settings have to be made. For
this, "Coding level 1" is automatically
active.
106
(cont.)
5. Check the system pressure and top
up with water if required.
Minimum system pressure: 0.8 bar
Permiss. operating pressure: 2.5 bar
Note
Type and extent of parameters depend
on the heat pump type, on the selected
system scheme and the accessories
employed.
!
Please note
Incorrect operation at "Coding
level 1" may result in damage to
the appliance and the heating
system.
Always observe the instructions
in the separate service instruc-
tions of the Vitotronic 200 heat
pump control unit, otherwise the
appliance will no longer be under
warranty.