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7.5 Unscheduled maintenance
After correctly starting-up and carrying out the relevant checks, the units normally do not need any intervention by the
customer service in order to check the charge of the refrigerant gas.
7.5.1
Special work
Over time, small leaks allowing the refrigerant gas to escape could be generated, so partially draining the circuit and
causing malfunctioning of the unit.
In these cases, the points from which the refrigerant gas is escaping must be found. These must be repaired and the
charge must be restored, working in compliance with current rules and regulations regarding equipment containing
fluorinated greenhouse gases.
7.5.2
Exceptional work
With use of the unit, particular situations may occur that require work to be carried out promptly.
Even in an emergency, work on the unit must be carried out by skilled personnel in safe conditions.
The presence of oil on the unit, on the pipes or on parts of the unit can be a sign of gas leaks.
Repair the leakage point and restore the charge of refrigerant gas.
In the case of small oil leaks, clean the dirty parts with absorbent cloths, otherwise recover the leaked oil with absorbent
sheets. In any case, the material used must be disposed of in accordance with current rules and regulations.
Check whether it is necessary to restore the oil charge.
Translation from original instructions
Installation manual
40
We reserve the right to make changes without any prior notice.
UATYQ*Y1
Packaged Rooftop
4P522680-1
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