Setting The Cooling/Heating Curve - Nibe VVM 320 Installer Manual

Commissioning without heat pump
The indoor module can be used without a heat pump,
i.e only as an electric boiler, to produce heat and hot
water before the heat pump is installed, for example.
Connect the pipe for docking in from the heat pump
(XL8) with the pipe out to the heat pump (XL9).
Enter menu 5.2.2 System settings and deactivate the
heat pump.
NOTE
Select operating mode auto or manual when
the indoor module is to be used with the heat
pump again.
Pump speed
The circulation pump (GP1) in VVM 320 is frequency
controlled and sets itself using control and based on
heating demand.
Available pressure, circulation pump, GP1
Pressure
Tillgängligt tryck
(kPa)
(kPa)
70
60
50
40
30
20
10
0
0 0,1 0,2 0,3 0,4
Post-adjustment, venting
Initially, air is released from the hot water and venting
may be necessary. If gurgling sounds can be heard from
the climate system, the entire system will require addi-
tional venting. The installation is vented via vent valves
(QM20), (QM22) and other climate systems through
their relevant vent valves. When venting, VVM 320
must be off.
NIBE™ VVM 320
0,5 0,6 0,7 0,8
Flow (l/s)
Vattenflöde (l/s)
Setting the cooling/heating
curve
heating curve 1.9.1.1
system
flow temperature °C
outdoor temp. °C
cooling curve 1.9.1.2
system
flow temperature °C
outdoor temp. °C
heating curve
Setting range: 0 – 15
Default value: 9
cooling curve (accessory required)
Setting range: 0 – 9
Default value: 0
The prescribed heating curve for your house can be
viewed in the menu curve
curve is to give an even indoor temperature, regardless
of the outdoor temperature, and thereby energy effi-
cient operation. It is from this heating curve that the
indoor module's control computer determines the
temperature of the water to the heating system, supply
temperature, and therefore the indoor temperature.
Select the heating curve and read off how the supply
temperature changes at different outdoor temperat-
ures here. If there is access to cooling the same settings
can be made for the cooling curve.
Curve coefficient
The slopes of the heating /cooling curves indicate how
many degrees the supply temperature is to be in-
creased/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.
Chapter 6 |
. The task of the heating
Commissioning and adjusting 37