Operation
©2022 nVent
89217391 Rev. A
61
10.2 Adjustments
Unit
•
Check the shut-off valves and open them, if necessary.
Switching the unit on:
1.
Use the maintenance switch to turn on the device.
NOTE
Check the direction of rotation of the pump(s) only during the initial
commissioning of the system.
NOTE
There is a white mark on the impeller of the pump(s). It indicates the direction of
rotation. The pump must turn clockwise.
The unit now operates completely automatically and supplies the peripheral units
with chilling medium.
Fault messages are displayed on the control unit.
Switching the unit off:
1.
Switch the unit off via the maintenance switch.
10.2.1 Low water level
If the water level is too low, the control unit will display a fault message. The low
water level can be remedied by adding water to the tank without having to stop the
system. After the elimination of the low water level fault, the fault message is
cleared from the control unit.
NOTE
If the low water level problem is not eliminated within a preset warning period,
the fault message must be acknowledged via the control unit following the
elimination of the problem.
ON
OFF