Viessmann Vitovalor PT2 Installation And Service Instructions For Contractors page 95

DHW
(cont.)
503.0 "Scald protection"
Setting
OFF
ON
534.0 "Circulation pump run-on"
Setting
120 s
1101.2 "Set speed of the primary circuit pump for DHW heating"
Setting
Explanations
The adjustable water temperature is limited to a maxi-
mum value.
0 Scald protection OFF
Danger
Risk of injury due to increased DHW tempera-
ture.
Inform the system user of the risk from the high-
er outlet temperature at the taps.
1 Scald protection ON (maximum DHW temperature 60
°C)
Note
Even with the scald protection switched on, higher
outlet temperatures may occur at the draw-off points
in the following cases:
With active hygiene function
■
While the appliance is being calibrated
■
Explanations
Circulation pump run-on after cylinder heating
120 Delivered condition 120 s run-on
0 to 900 Run-on time adjustable from 0 to 900 s in 60 s incre-
ments
Note
To avoid damaging the appliance, do not set the run-
on time to < 120 s.
Explanations
Set speed of the internal circulation pump when oper-
ated as a circulation pump for cylinder heating
... Delivered condition specified by settings specific to
the appliance
20 to 100 Set speed adjustable from 20 to 100 %
System configuration (parameters)
95