ST- 85 – USER'S MANUAL
While in the
H.C.W. Priority
mode, the icon is displayed in the up right
corner of the main screen.
ATTENTION: The boiler should have non-return valves mounted on the
central heating pump circuit and the hot consumption water pump circuit. A
valve mounted on the hot consumption water pump will prevent hot
consumption water from being drawn from the water heater.
II.h.3) Parallel Pumps
In this mode, the pumps start to run in parallel above the pump activation
temperature (set by default to 35
O
C). These temperatures may, however,
vary depending on user settings. This will cause irregular activation of the
pumps. However, when both thresholds are exceeded, the pumps will
operate simultaneously. The central heating pump runs continuously, while
the hot consumption water pump stops after the setpoint temperature is
reached in the water heater.
While in the
Parallel Pumps
mode, the icon is displayed in the up right
corner of the main screen.
ATTENTION:
In this mode, a non-return valve should be fitted to
maintain different temperatures in the water heater and in the house. After
activation of the parallel pumps function, three items appear on the display.
Starting from the left, these are: Boiler Temperature (C.H.); Water Heater
Temperature (H.C.W.) and Setpoint Temperature (C.H.).
II.h.4) Summer Mode
When the function is enabled, only the hot consumption water pump is
- 13 -
H.C.W. Priority
Parallel Pumps *
Parallel Pumps
Summer Mode *
42
O
c | 55
O
c
c
C.H. Setpoint
45
O
c 43
O
c 55
O
c
c
C.H. H.C.W. Set
Содержание ST-85
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