66
Safety valve
Safety equipment that must be installed in the cold
water pipe by your contractor. The safety valve opens
automatically to prevent excess pressure in the DHW
cylinder.
The heating circuits are also equipped with safety
valves.
Solar circuit pump
In conjunction with solar thermal systems.
The solar circuit pump delivers the cooled heat transfer
medium from the indirect coil of the DHW cylinder to
the solar collectors.
Set temperature
See "Set temperature".
Summer mode
In warmer months, you can switch off heating opera-
tion.
To do so, set the
"DHW"
operating program to
"On"
and the
"Heating circuit"
to
"Off"
.
The system remains in operation for DHW heating.
Central heating is switched off.
Cylinder primary pump
Circulation pump for heating the DHW in the DHW cyl-
inder.
Temperature level
You can specify set values for 3 different temperature
levels:
■
"Standard"
■
"Reduced"
■
"Comfort"
Set temperature
Specific temperature that should be reached, e.g. set
DHW temperature for example.
Drinking water filter
A device that removes solids from the water. The
drinking water filter is installed in the cold water pipe
upstream of the DHW cylinder or the instantaneous
water heater.
Flow temperature
The flow temperature is the temperature at which the
heating water enters a system component such as a
heating circuit.
Appendix
Terminology
(cont.)
6172108
Summary of Contents for Vitodens 200-W System
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