Installation, use and Maintenance manual - ed. 04/14
34
AD14 Evaporative Cooling Operating Instructions
All controls are accessed from the wall mounted control box using the inputs shown below:
1 flash
–
Slow
fill Auto
reset
If the high level probe is not covered within 20 minutes this means there is a water supply problem.
Either the water has not been switched on or there is a problem with the inlet valves.
2 flashes
–
Overflow
Manual reset
This is activated when the Very High Level probe is covered.
3 flashes
–
Probes out of sequence
Manual reset
If any probe is covered out of sequence this alarm is activated. This is either a fault with the probe
or the float sticking on its support.
4 flashes
–
Abnormal evaporation
Manual reset
In ‘COOL’ operation if a fill cycle is not activated in a 6 hour period this alarm is activated. This is
typical of a circulation pump failure.
5 flashes
–
Slow drain
Auto reset
In a drain operation if the Very Low Level probe is not uncovered in 10 minutes this alarm is
activated
6 flashes
–
External alarm
Auto reset
In the control panel there are a set of contacts which can be connected to an external alarm switch.
If this is activated this alarm is operated.
Auto Reset :
the alarm will automatically clear when the fault clears.
Manual Reset: A manual reset alarm requires the cooler to be turned off at the wall box after the
fault has been cleared.
Fan speed
This set the spped
of the fan
Alarm light
The number
of flashes
gives the fault
Auto/Manual
This enables
automatic
control when a
thermostat is
connected
Cooling
This switches
between Vent
and Cool mode
Power
This switches
the cooler on
and off
