20
"
""
"
−
A double signal tone sounds.
−
The display for LEVEL (low-level) appears.
−
The fault triangle is flashing
−
Press the key. If necessary repeat several times.
−
Also press the key if the unit had switched off under a fault
condition.
6.3 Setpoint selection
(level 0)
or
−
Input the setpoint with one of the keys.
−
Speeding the setting process by:
a) continuous pressing the keys or
b) pressing one key (holding it down) and shortly pressing
the other key.
−
Briefly releasing (1 s) the key (s) and again pressing one of
the keys moves the cursor one place to the right.
−
Display flashes 4 s
!
the new value is accepted
automatically, or
−
Value is entered immediately with this key.
☞
−
For safety reasons the setpoint can only be adjusted up to 2 °C above the upper limit of
the operating temperature range of the particular unit type
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