Translation from original instructions
Installation manual
32
We reserve the right to make changes without any prior notice.
UATYQ*Y1
Packaged Rooftop
4P522680-1
6.3 Calibration of safety components
Any work on the unit must be carried out by qualified authorised personnel. Incorrect calibration
values can cause serious damage to the unit and harm people.
The control and safety equipment is calibrated and tested in the factory before the unit is shipped.
However, after the unit has been started, the safety devices must be checked (only the high and low pressure
switches).
The checks must be carried out as described in the "Periodic checks" chapter.
The calibration values are shown in the table
Control and safety
components
Unit
Activation set
point
Differential
Reset
High-pressure switch
From UATYQ20A* to
UATYQ30A*:
37,8 barg
10,8 barg
Manual
From UATYQ45A* to
UATYQ115A*:
40.5 barg
7,5 barg
Low-pressure switch
All units:
1,5 barg
2,0 barg
Automatic
High pressure safety
valve
From UATYQ20A* to
UATYQ30A*:
42 barg
-
-
From UATYQ45A* to
UATYQ115A*:
45 barg
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