Analysis of Water Leakage Causes in Split-Type Explosion-Proof Air Conditioners

Split-type explosion-proof air conditioners are favored for their quiet indoor unit operation and stylish exteriors. Nonetheless, they have shortcomings, such as susceptibility to refrigerant leakage and indoor units prone to water leaks, which pose significant risks. Various factors contribute to water leakage, warranting a detailed analysis.

1. Structural Considerations:

Water leakage in split-type explosion-proof air conditioners often stems from the slim design of indoor units with undersized catch trays. Designing a width greater than the evaporator’s thickness poses a challenge, often failing to fully capture condensation, leading to drips.

2. Design Flaws:

Some manufacturers, aiming to cut costs, produce models with identical exteriors but differing internals. For example, a 1.5 horsepower air conditioner with a high-capacity compressor might use a double-row tube condenser, nearly doubling the condensing area compared to a 2500w unit. Yet, fitting an evaporator nearly twice the size into a slim indoor unit isn’t feasible, creating a disproportion between condensing and evaporating areas, and subsequent water leaks when air is expelled.

3. Manufacturing Imperfections:

Irregularities in the evaporator fins and inadequate stacking can impede condensation flow, causing excessive retention and eventual dripping inside the casing due to inadequate drainage.

4. Insulation Issues:

Over time, parts of the indoor unit casing of split-type explosion-proof air conditioners might reach dew point temperatures, necessitating insulation to prevent condensation. Inferior insulation materials or inadequate adhesion can lead to ineffective insulation, resulting in condensation formation and subsequent dripping.

5. Installation Missteps:

Installing the indoor unit of a split-type explosion-proof air conditioner requires careful attention to the drain pipe’s positioning and slope. Incorrect installation can lead to obstructed water flow and leakage. Ensuring an outward slope from the interior is essential for smooth drainage.