LOCATION AND TESTING
!
Important
One of the most critical parts
of the installation is the location of the
remote control and receiver. If this
combination of components are not set
up / located correctly, it can result in
chargeable service calls.
After the cooler has been installed, place
the remote control in the selected wall
position and operate the cooler.
Switch the cooler to high speed and
switch on and off 20 times at
approximately 3 second intervals. 1
missed transmission in 20 is acceptable,
2 missed transmissions is not. This
procedure is done to check that the
location you have chosen is not prone to
interference or blocks the radio
transmission. If the operation is
intermittent, try another location.
COMMISSIONING USING THE
REMOTE CONTROL
The following information allows quick
diagnosis at start up -
acts as a
general diagnostic indicator, and will
function as follows:
Take the remote control to the roof and
control the Cooler from there. This will
save you a lot of time.
Power up the cooler using the on/off
switch on the Electronics Module. Test
motor and pump operation. Look at the
front of the Module where 2 light emitting
diodes (LEDs) are situated (Fig. 32). The
left LED is
“
tricolour
”
and can glow green,
red or amber. The right LED is red only. If
the left LED is double flashing green,
everything is OK, this is normal operation.
•
indicates the control is running normally.
If it does not glow at all, then there is
either no power to the Electronics Module
(check isolating switch, circuit breaker,
plug and socket connections), or a failure
has occurred.
•
(remote controls
only) indicates that the Electronics
Module has received a command at an
incorrect ID address. (See the remote
control - setting address code section
above, to re establish the code)
indicates one or more of
the following faults:
The "Tricolour (left) LED"
Green double flash every 2 seconds
Amber for 1 second
Red flashing
•
1 Red Flash
2 Red Flashes
4 Red Flashes
7 Red Flashes
indicates the
status of the WaterManager
measurement circuit and will function as
follows:
1 Flash
2 Flashes
3 Flashes
4 Flashes
Continuously On
MOTOR LOW SPEED SETTING
indicates
....Fault Code #1
–
Communication Failure.
indicates
....Fault Code #2
–
Failure to Detect Water at
Probes.
indicates
...Fault Code #4
–
Failure to Clear Probes
during drain.
indicates
....Fault Code #7 - Incorrect Main Power
Supply Frequency.
indicates
....WaterManager is operating and the
measured salinity is below the set point.
indicates
....WaterManager is operating and the
measured salinity is above the set point.
indicates
....The Salinity Control Method = Drain every
65 minutes.
indicates
....Incorrect Salinity Control Method selected.
indicates:
The probes are open circuit, or measured
salinity is less than 20us/cm (the water is
very pure, ie has very little salt content).
EXV coolers will function across a wide
speed range. The minimum speed has been
factory set, and should not require
adjustment under normal circumstances.
However, some adjustment may be
necessary to suit specific installations.
The "Red (bottom) LED"
After you have set the motor amps
and belt tension correctly, check the
speed variation of the cooler. When
the control is changed from maximum
to minimum settings, there should be
an easily recognizable difference in
fan speed.
If there is not, check the following:
That windows and doors are open.
Rule of thumb is to have 2 times the
area of the outlet grille open for
exhaust in each room.
If the above is correct then proceed as
follows:
Set the fan speed to minimum
using the remote control, so that only
two bars are displayed on the remote
control.
Turn the minimum speed
adjustment knob (Fig 33) clockwise
or anti-clockwise, until the belt is
running at approximately one
revolution per second (this equates
to a fan speed of approximately 600
rpm).
!
!
!
32
33
17
EXV Evaporative Cooler
+ -
Testing the Cooler
SPEED
ADJUSTMENT
