Use the fan speed to control switch to alter the air flow, press the FAN SPEED switch to either low (I) medium (II) or high
(III) fan speed
If chilled air is required, first press the red COOLING ON switch and then turn the thermostat knob fully anti-clockwise
NOTE:
If the thermostat knob
The unit is fitted with a time-delay device, which will prevent the compressor starting for approximately 4 minutes
The unit will now be running, allow a minimum of 10 minutes for it to begin cooling
If chilled air needs to be directed to a particular area
, adjust the grille louvre blades on the front of the unit. Once the
desired room temperature has been reached, gradually turn the thermostat control knob clockwise until you hear a click.
The unit will now only emit chilled air when the room temperature rises beyond the ‘set-point’ you have selected via the
thermostat knob.
If the red ‘fault’ light illuminates, switch the unit OFF and isolate it from its power supply. Check the technical notes
document to establish the reason and rectification of the fault.
Coolant System
This unit is factory supplied with the correct quantity of coolant in both unit (indoor
and outdoor) as well as the standard 10m umbilical. The coolant top-up tank is
located within the indoor unit & is accessed via the black circular
fitting located on the top panel. It should not be necessary in normal use to have to regularly top up with any additional
coolant. However it should be noted that a small amount of fluid will be lost when connecting/disconnecting the umbilical water
fittings, always ensure coolant is topped up prior to operation.
Additional lines purchased from us are pre-filled, so upon extension topping up with additional coolant should not always be
necessary, but if required, follow the guidelines below which must be followed exactly, to prevent potential internal component
damage.
The internal water-pump must not be run dry as immediate failure will result.
The pump is an expensive item to replace, before hire, we would advise the coolant level be always be checked and topped
up if necessary
The water pump is only operated when the COOLING button is depressed, after having first depressed the FANS
button
.
Coolant Topping up Procedure
1) Ensure that the unit is not connected to the power supply
2) Ensure that if the umbilical has been damaged and replaced with new, that it is connected to both the indoor and outdoor
units via the umbilical hose and electrical fittings
3) Unscrew the cap on the indoor unit top up tank fitting
4) Fill the internal tank until the coolant level is just below the brass fitting in the neck, avoid overfilling as spillage will result
DO NOT EVER OPERATE THE UNIT WITHOUT THE CAP FITTED
5) Plug the unit into the appropriate power supply and switch on via the fans and cooling switched
6) Observe the unit for the first 15 minutes of operation stop and unplug the unit. Then remove the cap and add extra
coolant as (4) above if necessary
7) Observe all umbilical connections ensuring no leaks are evident. If any leaks are found, immediately switch the unit off
and disconnect from the power supply. Find the reason for the leak(s) and rectify. Do not run the unit if leaks are
observed, as the coolant will quickly be lost from the system, resulting in possible internal pump failure
8) Disconnect the unit from the power supply
HP Switch
This unit is fitted with a safety feature which prevents the compressor from failing should you not follow the operating
instructions. In particular, if you fail to connect one or all parts of the umbilical connections and then try to operate the unit, the
machine will very quickly trip its high pressure (HP) switch located within the indoor unit.
The switch can trip for a number of different reasons:-
1) Umbilical connections not made correctly
2) Internal water circulating pump failure or blockage
3) External unit fan failure (or not connected as (1))
The switch will automatically reset after a short period but the cause of the trip still needs to be established. Check the
Troubleshooting guide following.
Equipment Care
Never use an air conditioner except for its intended purpose
Keep the equipment clean and especially the coil faces. Blow out the coils with compressed air
Where fitted, regularly check the water drain tank (every 3-4 hours). On the control panel is a red light marked PLEASE
EMPTY TANK WHEN LIT, which will illuminate when the tank is full. The unit will also turn itself off, however please switch
the FANS ON and COOLING ON switches to OFF (non-illuminated) by depressing them in turn.
