MENU 38 - AIR HEATER PI I
Setting range: 1 - 255
Default value: 5
The electrical air heater (EAH 21) is controlled with PI
control.
In this menu, you set the desired time (the I time).
MENU 39 - PREHEATING CYCLE
Setting range: 10 - 120 sec.
Factory setting: 40 sec.
Here you set the electrical air heater’s (EAH 21) work
cycle.
If the power is 50% and the setting in this menu is 60
seconds, the heater will be in operation for 30 seconds
and switched off for 30.
Caution
The setting must comply with any national
standards.
The modulating air heater function is controlled by the
value set in Service menu, menu 20 - "Preheating".
The air heater tries to maintain a constant supply air
temperature in accordance with this setting.
No additional sensor is required, as the existing outdoor
air sensor (BT23) is used.
MENU 40 - REHEATING SET
Setting range: -10.0 - 10.0 °C
Default value: 2.0 °C
In User menu, menu 1 - "Temperature", you set the de-
sired temperature; in this menu you set the desired
offset value.
If the desired temperature is 20°C and the offset value
is 2, the re-heater will try to maintain 18°C as the supply
air temperature.
MENU 41 - RE-HEATER PI P
Setting range: 1 - 255
Default value: 5
For electrical re-heaters that can be controlled with PI
control.
In this menu, you set the desired amplification (the P
section).
MENU 42 - RE-HEATER PI I
Setting range: 1 - 255
Default value: 200
For electrical re-heaters that can be controlled with PI
control.
In this menu, you set the desired time (I time).
MENU 43 - REHEATING CONTROL
Setting range: 10 - 120 sec.
Factory setting: 40 sec.
Here you set the electrical re-heater’s work cycle, if ap-
plicable.
If the power is 50% and the setting in this menu is 60
seconds, the heater will be in operation for 30 seconds
and switched off for 30.
Caution
The setting must comply with any national
standards.
The modulating re-heater function is controlled by the
value set in Service menu, menu 40 - "Reheating set".
The re-heater tries to maintain a constant supply air
temperature in accordance with this setting.
The existing supply air sensor (BT22) is replaced with a
sensor that is placed in the ventilation duct after the
heater.
MENU 44 - DEMAND CONTROL
Setting range: 0 - 100 %
Factory setting: 0 sec.
MENU 45 - FIRE DAMPER
Setting range: 0 - 4
Default value: 0
NIBE GV-HR 120-400
Chapter 8 | Control - Menus
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