Viessmann VITOCAL 300, Installation And Service Instructions Manual

Page: 121 / 160

Setting of the time required by the ser-
vomotor of the cooling mixer for a
complete changeover from one oper-
ating state into another (90 degree
movement).
Runtimes that are too short, can lead
to the cooling mixer "Cycling".
Access
& " System settings "
& " Program "
& " Natural Cooling "
& "Cooling mixer runtime" (
m
/
l
)
Standard setting 0:10 minutes
Setting range 0:05 to
4:15 min
Mixer active zone/dead zone
For function description see
page 110.
Access
& " System settings "
& " Program "
& " Natural cooling "
& "Heat mixer scan band "
(
%
/
5
)
or
"Heat mix non-op band "
(
=
/
0
)
Standard setting Setting range
" Heat mixer scan band " 4.0 K 2.0 to 40 K
" Heat mix non-op band " 1.0 K 0.5 to 3.0 K
Cooling mixer runtime
121
Control settings "natural cooling"
55
92
901
GB
Service