Filters; Maintenance Intervals; Cooling Coil; Electric Heater - Carrier 50CJ Serie Installations-, Betriebs- Und Wartungsanleitung

9 - MAINTENANCE

9.1 - Filters

Check the filters frequently when commissioning the unit. The rate at which they will clog will depend on how well the air circuits were
cleaned.

■ Maintenance intervals

The filter life depends essentially on the amount of dust in the air and the efficiency of the filtration system. The filtration quality cannot
be maintained if the filter medium has been damaged during maintenance. We recommend that the filters be replaced once every two
years, even in the case of moderate use
■ Replacing the filter elements
When performing maintenance, it is important to avoid releasing and spreading the dust that has accumulated in the filter.
Turn off the unit.
Access the filters by opening the panels on the front.
For sizes W 5/8/12, X 5/8/10 (Fig.1):
- Press the lug and pull it towards you (no.1) to unclip it and release the filter.
Note: The lug remains attached to the support bracket (no.2).
For other sizes (Fig.2):
- Remove the spring (no.1) from the runner (no.2).
- Remove the filters by moving the runner aside.
- Replace the used filters with new filters using cells fitted with a gasket. Take care to note the air flow direction indicated on the
new filters.
- Always make sure that the filter elements are properly positioned before compressing them or turning the unit back on.

9.2 - Cooling coil

■ Maintenance intervals
As the cooling coil is protected by a filter, its air circuits require very little maintenance.
Always cut the power supply to the cabinet before proceeding with cleaning.

9.3 - Electric heater

■ Maintenance intervals
The electric heater requires very little maintenance. However, the following checks are necessary:
Visually inspect the heating elements, wires and connection cables after every 1500 hours of operation.
Check and retighten the connections once or twice a year.
Fig. 1
Fig. 2
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