Page 37 SD092750 ISSUE 34Regular Planned MaintenanceOperations to be carried out during a regular planned maintenance visit are as follows:1) Replace all belts where fitted.2) Clean or replace filters as applicable. (This action may be required more frequently thanregular servicing).3) Check operation and condition of all fans and compressors.4) Check capacitor tolerances (where fitted).5) Check condition of all heat exchangers/evaporators.6) Check refrigeration system parameters.7) Check operation of control valves.8) Check for water leaks.9) Check drip trays and internal drain lines for blockages and clear.10) Check operation of controls and calibrate as necessary.11) Check operation of interlocks in use.12) Final check on overall operation of unit.13) Indicate on report any faults found or causes for concern.Frequencies recommended: Light to medium use 2 visits per year.Heavy use 4 visits per year.