15
Fault clearance
Before you look for a fault on the meter itself, please check the following items:
•
Is the system running? – 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. (Without the flow rate, the temperature is only measured
every 15 minutes.)
The 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
Key for
2
1
Readout level
2
Service level
1-01
Cumulated energy since
commissioning
2-01
Cumulated volume since commissioning
1-02-1
Display test "everything on"
2-02
Current flow rate
1-02-2
Display test "everything off"
2-03
Inlet temperature
1-02-3
Display test "UHF ON/OFF"
2-04
Outlet temperature
1-02-5
Due date value
2-05
Temperature difference
1-02-6
Due date*
2-06
Current performance
2-07
Next due date
2-08
Device number
2-09
Firmware version number
Summary of Contents for Vario 4 Typ 4.5.1
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