dritech

Basics

The basic process of the technology behind refrigerant type dehumidifiers is summarized in a few simple steps.

1. Air is pulled in with a fan blower in the dehumidifier
2. As air flows through the dehumidifier, it comes into contact with the cooling coils, which extracts moisture from the air by lowering the temperature. The moisture is accumulated as water, and collected in a reservoir, which drips into a tank or flows out through the drainage outlet.
3. The cold and dry air is then reheated and returned to the environment.

Features in the dehumidifier help to regulate humidity via a series of electronic controls and sensors.

Humidistat

Our units come with humidistats, which can regulate the humidity level of the air, by activating the dehumidifier when humidity rises above the desired level, and deactivating when the humidity level has been achieved.

Timer

Timer functions help to control the duration of the unit’s operation, for example, when you leave your home, you can set the timer for 2 hours and it will switch off automatically after 2 hours.

Memory

Memory function is useful for 24 hour operation, where the unit will restart automatically should power supply be cutoff and restored at any point in time. It works extremely well when used with a programmable timer, to control the periods in the 24 hours which the unit will be operational (for example, from 9pm to 7am only).

Room Temperature

Only run the machine when room temperature is below 35°C. The unit has risk of damage when the air temperature is too high.
If room temperature is very low (<20°C) or cold room conditions, you may require a more different unit designed specifically for cold temperature operation.

Enclosed Space

Keep the room enclosed, closing all doors and windows to prevent moisture inflow from fresh air exchange. Central air-conditioning systems will also introduce some fresh air depending on the HVAC design – this will increase the humidity load, which means you will need a more powerful unit to suppress the humidity.

Unrestricted Airflow

Keep the unit at least 6 inches away from walls if possible to allow air to flow more freely.

Bucket Placement

Make sure the bucket is placed back properly after emptying so that the water will be collected properly, otherwise there may be flooding and leakage which may damage the unit, and wet the area around the unit.

Maintenance

Clean the air filter in the unit when it gets clogged so that the unit may function efficiently. Empty the water tank when it is full to continue unit operation.

Understanding Relative Humidity

It is important to understand the relative humidity (RH) when purchasing a dehumidifier.

Generally, most people are able to understand absolute humidity, which is the ratio of the mass of water vapour to the mass of dry air, in a specific volume of air, at a specific temperature.

Relative humidity is the ratio of current absolute humidity to the highest possible absolute humidity at a specific air temperature. RH of 100% will mean that the air is saturated with water vapour and will result in rain/condensation etc. When the RH is high, we will feel that the air is warmer than it actually is because it is harder for the body’s sweat to evaporate. Vice-versa, a low RH will cause the body to feel cooler than it actually is.

Comfort

Humans will feel most comfortable at an RH% of about 45% (ie not to dry and not too humid). For prevention of mould, fungus, damage to sensitive equipment, rust etc, RH should be kept below 60%.

What Size To Choose?

To control the humidity in your room or office or even warehouse, a correctly sized dehumidifier is recommended. If the unit is undersized, you may not be able to maintain the RH throughout the day.

Please give us a call or email if you have any queries about our products and sizing of the dehumidifiers. We have a good range of sizes of dehumidifiers to suit all your dehumidification needs.