Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 87

Further details regarding the individual steps
Checking the system function (e.g. actuators, temperatures, heat
meter if applicable)
!
Please note
If the heat pump is exposed to
temperatures below –15 °C, e.g.
during storage or transport, the
high limit safety cut-out of the
instantaneous heating water
heater may respond.
Heat up the high limit safety cut-
out to above 20 °C and press
reset button A on the high limit
safety cut-out.
Instructing the system user
The system installer should hand the
operating instructions to the system user
and instruct the user in operating the
system.
This includes all components installed as
accessories, e.g. remote control units. In
addition, the system installer must make
the user aware of the required mainte-
nance work.
Commissioning, inspection, maintenance
(cont.)
A
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