Periodic Checks - Daikin UATYQ-AFC3Y1 Installation, Use And Maintenance Instruction

7.4 Periodic checks

Carry out periodic checks to make sure the unit is working correctly:
OPERATION
Check the operation of all the control and safety equipment as described previously.
Check the tightness of the electrical terminals in the electrical control panel and in the terminal
boards of the compressors. The moving and fixed contacts of the contactors must be cleaned
periodically and should be replaced whenever they show signs of deterioration.
Check the refrigerant charge through the liquid sight glass.
Make sure there are no oil leaks from the compressor.
Check the crankcase heaters of the compressors.
Clean the finned coil by following the instructions in the "External cleaning" section according
to the type of coil installed
Clean the air filters
Clean the ventilation filters of the electrical control panel.
Carry out the defrosting test.
Check the moisture indicator on the liquid sight glass (green = dry, yellow = wet). If the
indicator is not green, as indicated on the sight glass sticker, replace the filter.
Check the condition, fixing and balance of the fans.
Check that the noise emitted by the unit is normal.
This planning refers to an average installation; there could be installations in which it may be
necessary to increase the frequency of some checks.
Current legislation may require longer intervals on periodic checks than the recommended ones, also
with reference to the installed safety devices and the refrigerant charge present, without voiding the
warranty on the unit.
We reserve the right to make changes without any prior notice.
UATYQ*Y1
Packaged Rooftop
4P522680-1
RECOMMENDED
FREQUENCY
Monthly
Monthly
Monthly
Monthly
Monthly
Monthly
Monthly
Monthly
Monthly
4 months
4 months
4 months
Translation from original instructions
Installation manual
39