Operation
Initial operation & priming
When the cooler is first installed and switched on the pump initially has no fluid in & will sound rough & may
make a rattling sound as it needs to prime, the pump should self-prime within 5-10 seconds. If not switch off
straight away & remove the top outlet fitting & connect a short hose to the outlet which should be pointed
back into the top of the tank or to a bucket. Switch on again & fluid should flow within 10 seconds. Switch off
as soon as flowing & reconnect correct hoses. The pump is now primed & should not require further priming
unless the system is drained or air is allowed to get into the pump inlet due to low fluid level etc.
In the unlikely event of the above not working it may be necessary to repeat above & apply a very small
amount of air pressure into the tank (do not use unregulated compressed air as tank could explode). Do not
run the pump for more than 30 seconds if sounding rough & not primed.
Always run the cooler with the tank lid fitted securely. It is likely that the tank will need topping up once the
fluid has circulated through the hoses etc. Do not allow the tank level to drop to the bottom of the inspection
window keep filled close to the top of this window. Check the cooler and pipe fittings for any leaks after a few
minutes of running. Check the fluid level regularly, and top up with the correct mixture of fluid. Do not use this
cooler in the rain or wet conditions.
Daily operation
The operator should check for correct water flow operation every time this unit is switched on. The
fluid level should be regularly checked & kept topped up with the correct mixture of fluid.
It is important to ensure that the pump motor & fan assembly is rotating as soon as it is switched on,
in some circumstances the pump can lock up particularly if the cooler has been stood unused for a
few weeks this is due to mineral deposits from water inside the head & tends to occur if the fluid is of
poor quality or only water. If the pump motor does not appear to be turning at switch on then flick the on off
switch rapidly a few times, this can sometimes free a locked rotor. If the pump still does not turn then it will be
necessary to manually free off the rotor. For this the electrical supply must be isolated & one of the fan guard
screws is removed to allow access to the fan blade, carefully turn the blade impeller until it feels free (take
care not to bend the aluminum blades at all). The guard must be replaced before switching on. In addition
the pump motor is protected from a stall condition by an electronic device which prevents the motor
from burning out. This operates after between 15-45 seconds after a pump stall & overload is de-
tected & will remain shut down until power is removed. To reset this wait for approx. 1 minute with
power off.
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Maintenance
The operator should carry out daily checks of all cables and connections etc; any faults must be reported to a
competent person and the machine taken out of service until repaired. Make sure all electrical supplies are
disconnected before carrying out any maintenance on this unit. Check the cooler and pipe fittings for any
leaks daily. This cooler should be part of a regular maintenance plan carried out by a competent person and
documented. As part of this maintenance plan electrical safety tests should be carried out, the cooler should
also be drained, flushed out with clean water and refilled with the correct fluid mix no less than once every
year. The radiator will collect dust between the aluminum fins & should be gently cleaned using compressed
air to maintain the cooling capacity. Note modifications to this product, incorrect maintenance or incorrect use
can result in premature failure which would not be covered under warranty.
If the unit is correctly maintained it should give a long trouble free life.
