Display View (Main Menu); Service Menu; Changing Settings In The Service Menu; Service Menu Points - Nibe MT-WH 2029-1FS Manual

Domestic hot water heat pump
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7.3.1 Display view (main menu)

The display show the various temperatures by pressing the arrow keys. Press until the number of
the sensor of the desired temperature appears. After approximately 3 seconds the temperature
is displayed. The relevant temperature is displayed for about 30 seconds before the display goes
back to normal view. Normal view is set at menu point E49 (blank display, water temperature T7
or clock).
The following values can be displayed:
T5: Before evaporator
T6: Evaporator
T7: Water tank, top
T8: Water tank, bottom
T9: Additional sensor (can be used e.g. as solar collector temperature sensor)
T10 "External start/stop" input (cannot be used for temperature display). When T10 is short
circuited, the heat pump goes into forced operation.
CL: The current time from the built-in clock.

7.4 Service menu

7.4.1 Changing settings in the service menu

Press the "Arrow up" and "Arrow down" simultaneously for approximately 10 seconds to enter
the service menu. The display now shows the first menu item E0 in the service menu. If a key
is not activated for about 15 seconds while in the service menu, the service menu shuts down
automatically and the control returns to the main menu.
A desired menu item E# can be reached by scrolling up and down with the "Arrow up" and
"Arrow down" keys. The value of the menu item is displayed when you press the "Operating
thermostat"-key (
).
The value can be changed using "Arrow Up" and "Arrow down" keys, when the "Operating
thermostat"-key is pressed simultaneously. When the desired value is reached, release the
"Operating thermostat"-key and you will return to menu item E#.

7.4.2 Service menu points

E0: Factory settings
If the set points are adjusted so that the system does not work as expected and the cause
cannot be found, do as follows:
1. Write down all the set points in the "table for set points" (elsewhere in this manual).
2. Adjust the set point to 1 and wait until the control goes back to normal view. The value
"E99" will show shortly to confirm factory reset.
3. Now all the set points have been changed to the factory settings.
4. You can now start from scratch and the set points can be adjusted.
Options: 0-1
Factory setting: 0
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