Viessmann VITOCAL 300, Installation And Service Instructions Manual

Page: 86 / 160

Standard setting 2:00 min Setting range 2:00 to 30:00
min
Min. compressor OFF
Setting the time that the compressor
remains off before it can restart. This
protects the heat pump from overload
conditions (3 starts per hour are the
maximum). Access
& " System settings "
& " Program "
& " Heat pump "
& "min. compressor off" (
P
/
Q
)
Standard setting 10:00 min
Setting range 00:20 to 30:00
min
Flow, primary/secondary pump
When the compressor starts, the pri-
mary and the secondary pumps must
already be running.
The circulation in the primary circuit
prevents frost damage on the eva-
porator; the circulation in the second-
ary circuit provides the heat
dissipation via the heating water.
Minimum runtime
(cont.)
86
Heat pump control settings
55
92
901
GB