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44. Press
to confirm your selection.
45. Use
to set "Active if" to CLOSED or OPEN depending on if the contact of the interlock (on cooler or
condenser) is OPEN or CLOSED when calling for the adiabatic system to run.
Example: If it is CLOSED when calling for the adiabatic system to run, then it must be set to "Active if" CLOSED. When
the status is CLOSED, the system is authorized to run by the cooler or condenser.
46. Press
to confirm your selection.
47. Press
, the display will show the Digital Input 2 screen:
Digital input 2 (Water inlet switch, ID2): signal from the water inlet switch. In case of a water shortage, after the delay shown
here, the system stops and triggers an alarm. One of these can be used: a low-level switch (LLS) if a water container feeds
the system (typically used for water recuperation systems); a low-pressure switch (LPS) when a water pipe from the city is
connected to the system inlet.
48. Press
and use
Refer to the section entitled WATER INLET LOW PRESSURE SWITCH (LPS) OR LOW LEVEL SWITCH (LLS) on
page
5.
49. Press
to confirm your selection.
50. Use
to set "Active if" to OPEN or CLOSED and press
Example: If water pressure or level is good and the water switch is closed, then set "Active if" to OPEN. In case of a water
shortage, the switch will open and the adiabatic system will stop and trigger the alarm after the delay shown below.
51. Use
to set Delay and press
52. Press
, the display will show the Digital Input B5 screen:
Digital input B5 (Differential pressure switch, B5): signal from a differential pressure switch reading the pressure drop across
the water particle filter. If the input is active, after the delay shown here, an alarm is triggered to indicate that the filter should
be changed. The system continues to run. Note: Analog input 5 is converted by software to digital input.
53. Press
and use
54. Press
to confirm.
55. Use
to set "Active if" to OPEN or CLOSED and press
Example: If when the filter is clean, the status is CLOSED, then set the "Active if" condition to OPEN. Then, when filter is
clogged, the contact will open and the controller will trigger an alarm after the delay shown here.
R
Digital Input 2
Water Inlet switch
Active if
OPEN
Delay time= 005secs.
to set Water Inlet switch if installed. RefPlus strongly recommends installing this switch.
to confirm.
Digital Input B5
Diff. pressure switch
Active if
OPEN
Delay time= 030secs.
to set to Diff. pressure switch.
Status
CLOSED
to confirm.
Status
CLOSED
to confirm.
21
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