MANUALE DI ISTRUZIONI / INSTRUCTION MANUAL
RADIATORI REMOTI / DRY COOLERS
RAN-RAL - Rev 1.0. - 11-10-2002 IT - EN
26 (32)
Power Supply
terminal board
Single-phase voltage regulator
When Control signal Terminal boards
Contact 9-10
is open
, the control is
enabled by Trimmer "P2 + P3"; when
this contact is closed, the control is
enabled by Trimmer "P6 + P7".
Control signal
terminal boards
The following control devices are found on the control section:
•
Trimmers: indicated as ‘Pn’
•
Jumpers: indicated as 'Jn'
•
Led: indicated as 'Dln'
The GREEN DL1 Led signals "delivery of voltage to the load in progress"
The YELLOW DL2 Led signals “Set-point 2 enabling".
The following connection devices are found on the power section:
•
Power terminal panel: Power supply terminal panel for the connection of the power supply and the load (e.g.
fans)
Control terminal panel: for the connection of control signals (in other words, the two probes/transducers or two
remote control auxiliary voltage regulators)
Precautions:
•
During re-assembly, always make sure that the cover of the external protection is always tightly closed.
•
Never modify or damage the equipment's adhesive identification labels
•
Never force the rotation of the trimmers beyond the mechanical stroke foreseen.
•
Modify only the positions of the trimmers indicated for adjustment.
•
Never under any circumstances modify the trimmers marked with a spot of red paint.
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