MENU 7.1.4.1 - FAN SPEED, EXHAUST AIR
Fan sync operation
Setting range: on/off
Fan increase permitted
Setting range: on/off
Fan speed
"Normal" and "Fan speed 1" – "Fan speed 4"
Setting range: 0 – 100%
Set the speed for the five different selectable speeds for
the fan here.
Fan increase permitted: This function provides a longer op-
erating time for the compressor between defrosts, but the
function can entail an increase in the noise level.
Fan sync operation: Here, select whether the fan is to
maintain the same speed, regardless of whether the com-
pressor is operating or not, or alternatively run at different
speeds. If the function is activated, fan speed "Normal" ap-
plies when the compressor is not in operation, and 3 fan
speed applies when the compressor is in operation. This
function is mainly used on those markets where the stat-
utory ventilation flow is below the min. airflow.
MENU 7.1.4.3 - FINE-TUNING THE VENTILATION
Fine-tuning the ventilation
Setting range: on/off
Real air flow
Setting range: 70 – 400 m³/h
Fan increase permitted
Setting range: on/off
Fan speed, exhaust air
Setting range: 0 - 100 %
In most cases, the ventilation adjustments are performed
via "Start guide", but this can also be done in this menu. You
set the air flow and adjust the fan speed.
Fine-tuning the ventilation: Activate this function while the
ventilation is being adjusted.
Real air flow: Here, you set the actual air flow as measured
during the ventilation adjustment.
Fan increase permitted: This function provides a longer op-
erating time for the compressor between defrosts, but the
function can entail an increase in the noise level.
Fan speed, exhaust air: Here, you can change the fan speed
while "Fine-tuning the ventilation" is activated.
NOTE
If the fan speed is too high during adjustment, in-
formation that it needs to be reduced is given at
the bottom of the page.
NOTE
When this setting is made, it is important that the
ventilation flow is in a stable condition.
The function is deactivated when you exit the menu.
MENU 7.1.5 - ADD. HEAT
This menu contains sub-menus where you can make ad-
vanced additional heat settings.
MENU 7.1.5.1 - INT ELEC ADD HEAT
Max. set electrical power
Setting range: 0 - 3.5 kW
Max set el power (SG Ready)
Setting range: 0 - 3.5 kW
Here you set the max electrical power for the internal electric
additional heat in S735, during normal operation and in
overcapacity mode (SG Ready).
MENU 7.1.6 - HEATING
This menu contains sub-menus where you can make ad-
vanced settings for heating operation.
MENU 7.1.6.1 - MAX DIFF SUPPLY TEMP
Max diff compressor
Setting range: 1 – 25 °C
Max diff additional heat
Setting range: 1 – 24 °C
Here you set the maximum permitted difference between
the calculated and actual supply temperature in the event
of compressor or additional heat mode respectively. Max
difference additional heat can never exceed max difference
compressor
Max diff compressor: If the current supply temperature ex-
ceeds the calculated supply by the set value, the degree
minute value is set to 1. The compressor in the heat pump
stops, if there is only a heating demand.
Max diff additional heat: If "Additional heat" is selected and
activated in menu 4.1 and the current supply temperature
exceeds the calculated temperature by the set value, the
additional heat is forced to stop.
MENU 7.1.6.2 - FLOW SETTINGS, CLIMATE SYS
Setting
Options: Radiator, Underfl heating, Rad + Und. heat., Own
setting
DOT
Setting range DOT: -40.0 – 20.0 °C
Delta temp at DOT
Setting range dT at DOT 0.0 – 25.0
NIBE S735Chapter 9 | Control - Menus54
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