techem 64251258, Руководство по эксплуатации, Страница: 15 / 146

15
Fault clearance
Before you look for a fault on the heat meter itself, please check the following items:
• Is the heating on? – Is the circulation pump running?
• Are the shut-off devices fully open?
• Is the pipe free (possibly clean the strainer)?
• Is the dimensioning okay?
In case of error
F -6
, execute the following steps:
1
Check the meter installation.
2 Generate a positive flow.
3 Check the current flow (LCD).
4 Wait until the LCD is off again (approx. 2 mins.).
5 Press the button again.
The result of flow direction recognition is only displayed after 8s.
6 Check LCD as to whether F-6 is now off.
!
If F-6 does not cease, you must replace the meter.
Display levels
The display is switched off under normal operation. Approx. 2 minutes after the last time
a key is pressed, the display is deactivated automatically. The flow rate / temperature
display is always updated every 8s. (When there is no flow rate, the temperature is only
measured every 15 minutes.)
The heat meter has 4 display levels.
A long button push switches between the display levels. A brief button push jumps to the
next display within a level

2
!
In the device number display, the number next to the display identifier is the first
digit of the device number.