About Condenser Tumble Dryers

Personal safety at all times

First and Foremost Electric Shock Can Kill

Attention! Electric Shock Can Kill! Before you do anything else, before you remove the cover of any electrical appliance, this includes your condenser tumble dryer. If it is your intention to carry out work, make certain that the power is switched off, preferably at the consumer unit, main switch isolator. Then, also remove the plug from the electricity supply socket before proceeding with any work or investigation! Once the plug is out and the plug is within your sight and reach you know that you are safe. Even if someone accidentally switches the power on again.

Condenser Tumble Dryer Air Flow

There are two air circulation paths operating in parallel inside a condenser tumble dryer. The cool air circuit, blown by a fan such as this typical plastic molded fan continuously blows cool air. The dryer draws cold air in through a vent in the casing of the dryer. The cold air is then blown through the veins of the condenser unit to maintain the temperature as cool as is practically possible.

Typical Siemens Condenser Dryer

Typical Siemens Condenser Tumble Dryer Exclusive to Euronics and Agent stores, this Siemens extraKlasse dryer boasts a 9 kg capacity and a choice of 15 programs

Environment Location

Condenser tumble dryers, or any tumble dryer for that matter, should be located in a low ambient temperature environment. As low as can reasonably be achieved. This way the dryer is able to work more efficiently. If the dryer is working in a centrally heated room where the room ambient temperature is a comfortable 60'F, (15'C), drying will take far longer.

Condenser Tumble Dryer 2nd Airflow

The second airflow system is at the same time blowing hot air. Heated by the element inside the dryer, the hot air passes through the center of the tumbling clothes. Here the hot air picks up moisture from the clothes. It continues via the lint filter and ducting inside the machine, to the condenser unit. The warm air however blows through the veins at right angles to and interleaved with the cool airflow. The warm moisture-laden air flows through the condenser simultaneously to the cooling air. So it is thereby, encouraged to give up its moisture, (condensate). Gravity drains the condensed water into the reservoir tank. The water can then be drained out manually, pumped out to an external drain or into a waist-high reservoir tank.

Condenser Tumble Dryer Pump

White Knight condenser dryer pump
Every condenser tumble dryer needs a reservoir water bottle. The bottle requires emptying frequently. Situated near to the floor, this saves on the cost of a pump. Generally, this is less complicated, less to go wrong. Other condenser tumble dryers locate this bottle near the top of the dryer. These dryers need to have the water pumped into the reservoir bottle or straight out to an external drain.

Condenser Tumble Dryer Circulation Fan

In some condenser dryers, see the Which guide to buying a condenser dryer, the two fans are positioned on the shaft of the one motor. One fan situated at one end of the motor shaft. The other fan on the opposite end of the motor shaft. The synchronous motor will run at only one fixed speed. So the speed of the fans is pre-set by the required drum rotation speed and the diameters of the drum and the motor pulley. Indirectly the required drum rotation speed determines the speed of all three functions as there is only one motor. In some condenser tumble dryers, they choose to have a separate motor with its own fan. Supplying the cold air for the condenser cooling circuit. This has the advantage of being able to independently determine the speed of the cold air fan motor. This unit is free to locate anywhere appropriate in the dryer. Because a separate motorized fan improves the overall efficiency of a condenser tumble dryer.

Quick Maintenance Procedures

First of all, after every use, you should check the lint (fluff) filter. In every tumble dryer, there is a serviceable, washable, replaceable lint filter. The filter requires cleaning after every drying cycle and replaced as and when necessary.

Typical tumble dryer lint filter

Second, on all condenser tumble dryers, there is the condenser itself. The condenser is located where it can very easily be removed so as to facilitate cleaning. Carry out cleaning by running water through the condenser. An alternate method is to immerse the condenser into a bowl of water so as to agitate the condenser around in the water. This will then remove as much of the build-up of sludge and lint as is possible. DO NOT SCRAPE OR CLEAN WITH A KNIFE OR ANY ABRASIVE TOOL. Because the veins in a tumble dryer condenser unit are made from extremely thin stainless steel and so are very easily damaged. Remember! Always remove the plug from the mains electrical socket before proceeding with any work or investigation!

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