Viessmann VITOCAL 200-G, Инструкция по установке и обслуживанию

Страница: 139 / 208

Setting the minimum heat pump runtime. The heat pump only switches off when
this time has elapsed.
This setting is designed to reach long heat pump runtimes to achieve high effi-
ciency and low wear.
Access
& " Device settings "
& " Programming "
& " Heat pump "
& "Minimum runtime" (
P
/
Q
)
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 be restarted. This
protects the heat pump from overload conditions (3 starts per hour are the maxi-
mum).
Access
& " Device settings "
&
" Programming "
&
" 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 following conditions must already be met:
&
The primary pump must already be running, to enable the primary circuit to cir-
culate brine.
&
The secondary pump must already be running, to enable the heat to be trans-
ferred immediately via the heating water.
Minimum runtime
139
Heat pump control settings
55
92
968
GB
Service