Haier HDU-42H03/H The examples of improper installation, Air discharging fan Improper example

Models: HDU-28H03/H HDU-42H03/H HDU-24H03/H

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9. The examples of improper installation

Air discharging fan INSTALLATION MANUAL FOR INDOOR UNIT

8. The attentive matters in installation of air suction and discharging duct

Manual background Recommend to use anti-frost and sound-absorbing duct. (locally bought)

Manual background The duct installation work should be finished before the fitment of ceiling.

Manual background The duct must be heat insulated.

Special air discharging outlet

Use screw bolt to fix

Manual background The specific air-discharging outlet should be installed at the place where the airflow can be reasonably distributed.

Manual background The surface should leave a checking meatus for checking and maintenance.

Air

Manual background Duct

Air

9. The examples of improper installation

Manual background Do not use air in duct and take the ceiling inner side instead. The result is because of the irregular outer air mass, strong wind and sunshine, the humidity is increased.

Manual background There may be water drop on the outside of duct. For cement and other new constructions, even if not taking ceiling inner side as duct, the humidity will also be so high. At this time, use glass fiber to perform heat preservation to the whole. (use iron net to bind the glass fiber)

Manual background Maybe exceeding the unit operation limit (for example: when indoor dry bulb temperature is 35Manual backgroundC, wet bulb temperature 24Manual backgroundC), it may lead to overload of compressor.

Manual background Affected by the capacity of air discharging fan, the strong wind in the outer duct and wind direction, when unit air sending volume exceeds the limit, the discharged water of heat exchanger will overflow, leading to water leakage.

Air discharging fan

Improper example

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Haier HDU-42H03/H, HDU-24H03/H, HDU-28H03/H The examples of improper installation, Air discharging fan Improper example

FAQ

What is the recommended duct for air suction and discharging?

It is recommended to use anti-frost and sound-absorbing duct, which can be locally bought.

How should the air discharging outlet be installed?

The specific air-discharging outlet should be installed at the place where the airflow can be reasonably distributed, and should be fixed with screw bolts.

What are the consequences of improper installation?

Improper installation can lead to increased humidity, water leakage, and overload of the compressor, affecting the unit's operation.