3
J4
IN1
IN2
In3
IN4
COM
ILL1345-A
Industrial Wall Control Application Notes
INPUT CONFIGURATION (continued)
In EXTERNAL [EXTERNAL] mode the power source must be
provided adjacent to the Wall Control via a power outlet and
adaptor. The adaptor may be a common small appliance adaptor
such as used for telephones, answering machines, weigh scales
etc, having the specified electrical output (see page 1).
INPUTS
If any one of inputs 2,3 or 4 is high, the IWC05 MANUAL [Man]
and AUTO [Auto] controls will be over-ridden and the IWC05 will
not respond to temperature and humidity changes sensed by the
Remote Sensor. In EXTERNAL [EXTERNAL] andAUTO [Auto]
modes the Temperature and Humidity and clock displays will cycle
every 5 seconds.
Input 1 [Power] - Remote OFF
This input enables the Cooler to be switched OFF.A positive voltage to the input 1 of the IWC05 holds the system
in the OFF state, and is indicated on the IWC05 screen by a R.
WARNING! It is not recommended that this switched input be used to control the Cooler in an emergency
situation, because it is not fail-safe, ie: if for any reason the cable continuity is cut, it is not possible to
apply a positive voltage to input 1 to switch the cooler OFF.
Input 2 [F1] - Fan1
This input enables the fan to run at minimum speed when a positive voltage is
applied. It functions in conjunction with Input 3 in a binary code to provide
the external control with three different speed settings for the cooler fan. With
Input Fan1 and Fan2 positive the cooler will run at maximum speed.
Input 3 [F2] - Fan2
This input enables the fan to run at medium speed when a positive voltage is applied when there is no voltage on
Input 2. With Input Fan1 and Fan2 positive the cooler will run at maximum speed.
Input 4 [Pump] - Pump ON / OFF
This input enables the pump to run when a positive voltage is applied. However, the pump operation is subject to
the CPMD module and the status of the cooler. If there is insufficient water in the tank the pump will not run until
water is at the correct level as sensed by the water probes.
Input 5 [H.E.] - Humidity Enable
This input only functions when the IWC05 is in EXTERNAL [EXTERNAL] Mode. It is possible for External controls
to drive the cooler to the point where the room humidity exceeds the default set point as sensed at all times by the
Breezair Remote Sensor. This input enables the IWC05 to over-ride the external pump command and disallow the
pump to run when the room humidity goes high. If this Input is not enabled, the pump will run as required by the
external command regardless of room humidity.
Input 6 [DT] - Pad Dry Time
In AUTO TIMER mode only, when the clock stops the cooler, the fan will continue to run for 60 minutes on speed 2
in order to dry the cooling pads.
Input 7 [HD] - Humidity Disable
This input disables Humidity control in AUTO [Auto] mode when no External [EXTERNAL] control is present. The
case may arise in AUTO [Auto] in which the temperature is satisfied and the fan is therefore stopped. BUT the
indoor humidity may fall below the set point and the IWC05 will demand that the cooler operate to raise the
humidity to the set point. The effect will be to lower the room temperature still further. If this is undesirable, the
humidity control may be disabled by this input.
Input 8 [Sp1] - Spare
Currently there is no requirement for this input.
22
FAN
XX
XX
XX
XX
INPUT 2 INPUT 3
OFF
HIGH NIL NILHIGH
LOW
MED
HIGH
