Nibe S1155PC, Руководство по установке

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Readjusting, venting, collector side
Level vessel
2/3
LEK
LEK LEK
2/3
LEK
Gamla bilder, med säkerhetsventil på nivåkärlet
1/3
1/3
Check the fluid level in the level vessel (CM2).
If the fluid level has dropped, top up the sys-
tem.
1. Close the valve under the vessel.
2. Disconnect the connection on top of the
vessel.
3. Fill with brine until approx 2/3 of the ves-
sel is full.
4. Reconnect the connector at the top of the
vessel.
5. Open the valve under the vessel.
If the pressure in the system needs to be raised, this is done
by closing the valve on the outgoing main line when the
brine pump (GP2) is in operation and the level vessel (CM2)
is open, so that liquid is drawn down from the vessel.
Expansion vessel
L
EK
If a pressure expansion vessel (CM3) is used
instead of a level vessel, the pressure level is
checked with the pressure gauge (BP6). If the
pressure drops, the system should be replen-
ished.
Setting the cooling/heating
curve
In the menus "Curve, heating" and "Curve, cooling", you can
see the heating and cooling curves for your house. The
purpose of the curves is to provide an even indoor temper-
ature, regardless of the outdoor temperature, and thereby
energy-efficient operation. Based on these curves, S1155PC
determines the temperature of the water to the climate
system (the supply temperature) and thus the indoor tem-
perature.
CURVE COEFFICIENT
The slopes of the heating /cooling curves indicate how many
degrees the supply temperature is to be increased/reduced
when the outdoor temperature drops/increases. A steeper
slope means a higher supply temperature for heating or a
lower supply temperature for cooling at a certain outdoor
temperature.
20
0 10 0 -10 -20 -30 -40
30
40
50
60
70
80
Framledningstempereratur
(°C)
Utetemperatur
(°C)
Steeper curve slope
Supply temperature
Outdoor temperature
The optimum curve slope depends on the climate conditions
in your location, whether the house has radiators, fan coils
or underfloor heating and how well insulated the house is.
The heating/cooling curves are set when the heating/cooling
system is installed, but may need adjusting later. Thereafter,
the curves should not need further adjustment.
CURVE OFFSET
An offset of the heating curve means that the supply tem-
perature changes by the same amount for all outdoor tem-
peratures, e.g. a curve offset of +2 steps increases the
supply temperature by 5 °C at all outdoor temperatures. A
corresponding change to the cooling curve results in a
lowering of the supply temperature.
20
0 10 0 -10 -20 -30 -40
30
40
50
60
70
80
Framledningstempereratur
(°C)
Utetemperatur
(°C)
Offset heating curve
Supply temperature
Outdoor temperature
SUPPLY TEMPERATURE – MAXIMUM AND
MINIMUM VALUES
Because the supply temperature cannot be calculated
higher than the set maximum value or lower than the set
minimum value, the curves flatten out at these temperat-
ures.
NIBE S1155PC Chapter 6 | Commissioning and adjusting 30