Specifications

10
INSTALLATION
Commissioning The Electronics Module (Variable Speed only)
Connection Points
A = Inlet Solenoid
B = Drain Valve (or Shorting Plug)
C = Wall Control
D = Water Probes
E = Fan Motor Minimum Speed Adjustment
F = Pump
G = Red Diagnostic LED
H = Tricolour Diagnostic LED
We recommend that you have a short test lead on hand for Coolers with a hard wired
control system. You can then take the wall control to the roof and control the cooler
from there. This will save you a lot of time. The short test looms are available from your
Seeley spare parts distributor (P/No. 831534).
Power up the cooler using the on / off switch on the Electronics control module. Test
motor and pump operation. Look at the front of the module where two light emitting
diodes (LEDs) are situated. The left LED is "Tricolour" and can glow green, red or
amber. The right LED is red only. If the LED (fig 12 item G) is double flashing,
everything is ok, this is normal operation.
The following information allows quick diagnostics at start up. For more detailed
information, consult the CPMD service guide.
¾ The "Tricolour LED"
- acts as a general diagnostic indicator, and will function as follows.
Green double flash every 2 seconds indicates the control is running normally.
If it does not glow at all, then there is no power to the electronics module. (Check
isolating switch, circuit breaker, plug and socket connection), or a failure has occurred.
Red flashing indicates one or more of the following faults is present.
1 red flash indicates...... Fault code #1 - Communication failure
2 red flashes indicate...... Fault code #2 - Failure to detect water probes.
(only for coolers with Solenoid, Probes and Drain Valve).
4 red flashes indicate...... Fault code #4 - Failure to clear probes during
drain. (only for coolers with Solenoid, Probes and Drain Valve).
7 r e d f l a s he s i ndi c at e . . . . . . F aul t
code #7 - Incorrect Supply Frequency
¾ The "Red" LED
- indicates the status of the Water Manager
measurement circuit and will function as follows.
1 flash indicates....... Water
manager is operating and the measured salinity
is below the set point.
2 flashes indicate...... Water
manager is operating and the measured salinity
is above the set point.
3 flashes indicate...... The salinity
control method = Drain every 65 minutes.
4 flashes indicate...... Incorrect
salinity control method selected.
Continuously On indicates...... The
probes are in open circuit, or measured salinity
is less than 20us/cm (the water is very pure, ie.
has very little salt in it).
C
A
B
D
E
G
H
F
12