Akva Vita TDP-F - district heating flat station for direct HE and DHW
Instructions
DH-SMT/PL
VI.KR.Z1.02 ©
Danfoss 09/2006
6
4. DHW temperature control
The DHW temperature is controlled by a
proportional valve – the PM controller. The DHW
temperature control is realized by turning the
lever towards the red (hot) or blue (cold) mark. The
temperature should be set to 45-48 °C at normal
use (7-8 l/min).
The temperature should never
exceed 55 °C
to avoid lime scale precipitation in
the heat exchanger.
If it is not possible to set the temperature according
to the above recommendations, it is recommended
to change the standard controller setting.
PM controller
The PM controller can operate in three basic
settings:
- High
- Standard – default
- Low
Approximate setting of PM controller is dependent on
district heating supply temperature and ∆p:
Supply
temperature:
Disposable differential
pressure ∆p (bar):
0.2 - 0.5
0.5 -1.0
> 1.0
60 - 70 °C
low
low
standard
70 - 80 °C
low
standard standard
80 - 90 °C
low
high
high
Setting changes:
- dismount lever by using the attached Allen
wrench,
- remove plastic cap,
- mount lever again and turn it:
- 1 rotation
clockwise – high
,
- 1 rotation
counter – clockwise – low
,
- mount cap and lever again.
