Nibe VVM 240, Installation And Maintenance Instruction

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Control 33
VVM 240
Flow temperature
Menu 2.4 Max flow temp.
The set maximum level for the flow temperature to the
heating system is shown here. The value is adjustable
between 10 and 80 °C
The calculated flow temperature never exceeds the
set level irrespective of the outdoor temperature,
curve slope or offset heating curve.
Menu 2.5 External adjustment
Connecting an external contact, see Electrical con-
nections - External contacts, for example, a room ther-
mostat or a timer allows you to temporarily or periodi-
cally raise or lower the flow temperature and with that
the room temperature. When the external contact is
made the calculated flow temperature is changed by
the number of degrees shown here. The value is
adjustable between -25 and +25 °C.
Menu 2.6.0 Own Curve Definition
You own curve definition is chosen here. This is an
individual linear curve with one break point. You select
a break point and the associated temperatures.
NOTE! The Curve slope in menu 2.1 must be set to 0
to activate this function.
Menu 2.6.1 Supply temp.at +20ºC
The flow temperature at an outside temperature of
+20 °C is chosen here. The value is adjustable
between 0 and 80 °C.
Menu 2.6.2 Supply temp.at-20ºC
The flow temperature at an outside temperature of -20
is chosen here. The value is adjustable between 0 and
80 °C.
Menu 2.6.3 Set temperature
Here you select at what outside temperature the break
point shall occur. The value is adjustable between -15
and +15 °C.
Menu 2.1 Curve coefficient
The selected curve slope (heating curve) is shown
here. The Own curve function is activated at value 0,
see menu 2.6.0. The value can be set between curve
0 and 15.
Menu 2.2 Offset heating curve
The selected heating curve offset is shown here. The
value is adjustable between -10 and +10. NOTE! The
value is changed using the Offset heating curve knob.
Menu 2.3 Min flow temp.
The set minimum level for the flow temperature to the
heating system is shown here. The value is adjustable
between 10 and 65 °C.
The calculated flow temperature never drops below
the set level irrespective of the outdoor temperature,
curve slope or offset heating curve.
5 5 ° C
M a x f l o w t e m p .
2 . 4
0 ° C
E x t e r n a l a d j u s t m e n t
2 . 5
1 5 ° C
S u p p l y T e m p . a t + 2 0 º C
2 . 6 . 1
3 5 ° C
S u p p l y T e m p . a t - 2 0 º C
2 . 6 . 2
0 ° C
S e t t e m p e r a t u r e
2 . 6 . 3
O w n C u r v e D e f i n i t i o n
2 . 6 . 0
9
C u r v e c o e f f i c i e n t
2 . 1
- 2
O f f s e t h e a t i n g c u r v e
2 . 2
1 5 ° C
M i n f l o w t e m p .
2 . 3
U
U
N
N
U
U
U
U
U
Menu 2.6.5 Return
Pressing the enter button returns you to menu 2.6.0.
Menu 2.6.4 Flow temp. at set
You set the required flow temperature for the break
point here. The value is adjustable between 0 and
80 °C.
2 0 ° C
F l o w t e m p . a t s e t
2 . 6 . 4
R e t u r n
2 . 6 . 5
U