MSAT 102-122-142-162-182-202-242
MSAT 102-122-142-162-182-202-242
MSAT 102-122-142-162-182-202-242
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ROUTINE MAINTENANCE<br />
IMPORTANT<br />
MAKE SURE THE UNIT IS NOT CONNECTED TO THE POWER SUPPLY BEFORE STARTING ANY MAINTENANCE OR<br />
CLEANING OPERATIONS<br />
This section is intended for the end user and contains information that is extremely important to ensure the unit has a long,<br />
trouble free service life.<br />
Scrupulously carrying out the few simple operations described below at regular intervals can avoid the need for servicing by<br />
specialist personnel.<br />
The operations which need to be carried out do not require any special technical knowledge, involving the following simple<br />
checks on the components of the unit:<br />
- condenser coil<br />
- electrical fans<br />
- structure<br />
UNIT<br />
CONDENSER COIL<br />
IMPORTANT: accidentally touching the exchanger fins could cause minor cuts. This operation should be carried out<br />
using special gloves.<br />
The condenser coils must be able to provide the maximum heat exchange. It is therefore important for their surfaces to<br />
be free of dirt and dust that may be deposited due to the effect of the electrical fans.<br />
- Use a brush to remove any impurities, such as paper, leaves, etc. that may have deposited on the surface of the coil.<br />
- Use a jet of pressurised air to clean the aluminium surface of the coil, making sure to point the jet parallel to the<br />
direction of the fins, so as not to damage them.<br />
- Check that the aluminium fins are not damaged or bent. If there is any damage of this kind, “comb” them using the<br />
special tool for this purpose to return them to their initial positions, ensuring the coil operates with optimal air flow.<br />
FANS<br />
Before every seasonal start-up check the noise of the fans.<br />
Persistent noise and vibrations may be the symptom of either the unbalancing of the blades or the loosening of the<br />
fastening screws.<br />
In the event of anomalies, call the authorised service centre, as the fans are located inside the machine, between the<br />
condenser coils.<br />
- Check the fastening of the fans to the support grill.<br />
- Check the fastening of the fan support grill to the structure of the unit.<br />
- Check, where possible, for any unbalancing of the fans, highlighted by abnormal noises and vibrations.<br />
STRUCTURE<br />
- Check the condition of the parts forming the structure, paying special attention to its steel components.<br />
- Treat any rusted points of the unit with paints designed to eliminate or reduce this problem.<br />
- Make sure that the unit’s casing panels are mounted firmly in place. Poor mounting can cause abnormal vibrations and<br />
noise.<br />
ELECTRICAL PARTS<br />
Check that the power cable connecting the unit to the electrical panel is not cut, cracked or damaged in any way that may<br />
affect its insulation. Contact an authorised service centre should maintenance be required.<br />
IMPORTANT<br />
AUTHORISED PERSONNEL SHOULD BE CALLED OUT EVERY TIME THE UNIT IS STARTED UP<br />
AT THE BEGINNING OF THE SEASON, SO THAT THEY CAN NOT ONLY CARRY OUT THE ABOVE INSPECTIONS<br />
BUT ALSO CARRY OUT A THOROUGH CHECK ON THE REFRIGERANT CIRCUIT.<br />
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