Daikin Outdoor Unit Cooling Only Air Conditioner EWAT032CZN-A1

Reading of operating data (Note 3: Daily reading of the operating values of the unit allows maintaining high observational standards)

Visual inspection of unit for any damage and/or loosening

Verification of thermal insulation integrity

Analysis of water (Note 4: Check for any dissolved metals.)

Verification of control sequence

Verify contactor wear - Replace if necessary

Routine cleaning of air heat exchanger surfaces is essential to maintain proper operation of the unit, avoid corrosion and rusting.

Elimination of contamination and removal of harmful residues will greatly increase the life of the coil and extend the life of the unit.

Steps for cleaning the air heat exchanger:

Galvanic corrosion of the connection Copper/Aluminum can occurre in corrosive atmosphere under the plastic protection; during the maintenance operations or periodic cleaning, check the aspect of the plastic protection of the copper/aluminum connection. If it is inflated, damaged or took off contact the manufacturer representative for advice and information.

Did you complete all the steps for cleaning the air heat exchanger?

Sign off on the air heat exchanger maintenance

This unit must be maintained by qualified technicians. Before beginning any work on the system, the personnel shall assure that all security precautions have been taken.

Neglecting unit maintenance could degrade all parts of the units (coils, compressors, frames, pipes, etc.) with negative effect on performances and functionality.

Choose the installation environment

Highly Aggressive Environments can be defined as the follows:

Select the type of highly aggressive environment

Unit exposed to a highly aggressive environment can face corrosion in a shorter time than ones installed on a standard environment. Corrosion causes a rapid rusting of the frame core, consequently decreases unit structure life time. To avoid that, it is necessary to wash periodically the frame surfaces with water and suitable detergents.

Is there any part of unit frame paint came off?