Ista Ultego III perfect Manual page 10

ultego® III perfect
Completing parameter setting
Parameter setting mode is exited:
by pressing LCD button 2, when the display shows
Automatically after 15 hours
Start-up
Replace the housing cover and press it in gently until you hear all the tabs latch. Open the shut-off valves. Check the heating
system for tightness and vent it carefully.
No more than 100 s later, message F0 will disappear. After that, check that the displays for flowrate and temperaures are
plausible. Vent the system until the flowrate display is stable. Adjust the system with the flowrate display (updated in the
flowrate timebase).
Seal the sensors. Attach user seals to the electronic unit and the sensors.
Read and note down the meter readings for quantity of heat, volume, operating time, and missing time.
We recommend resetting the maxima and the missing time (see parameter setting).
Error messages on incorrect mounting:
Displays
The places after the decimal point of displayed values are indicated by a surrounding border.
Calibrated values can be recognized by the star symbol shown in addition to the value.
The displays of of the heat meter are arranged on several levels (LOOPs). LCD button 2 advances the display of the user
loop (LOOP 0) cyclically.
User loop ("LOOP 0")
LCD button 1 is used to switch the display from the user loop to the selection of service loops (LOOP 1..n).
Service loops (selection)
...
LOOP
LCD button 1 advances the display to the next loop. After the last loop, the user loop (LOOP 0) appears again.
LCD button 2 displays the content of the selected service loop.
Within a loop, the LCD button 2 is used to advance to the next line of the display. After the last line of the display, the first dis-
play line appears again.
G.83.0101
ultego® III perfect
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Heat meter was mounted the wrong way round, against the intended
direction flow
Temperature sensors were swapped round during mounting or con-
nection
NOTE:
During a system stoppage, these messages may appear although mounting was correct.
NOTE:
Depending on how the unit is parameterized, the number of items displayed and the data shown may
differ from this description. Certain button functions may also be disabled.
Head of the loop
Accumulated quantity of heat with tariff status
Tariff register 1 (optional)
Accumulated volume
Segment test
Error message with error code number
Service loop 1
Service loop 2
...
n Service loop n
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