Dehumidifier capacity selection.

It is always a big challenge for users like us to select capacity of dehumidifier for our home. Once we decided to go for new dehumidifier unit then we always faced with common question of which capacity. In this article we will try to understand how to decide capacity and airflow of portable dehumidifier for home.

What home dehumidifiers should have?

dehumidifier home humidity-1While selecting dehumidifier for home we need to make sure that capacity should be sufficient so that it an remove humidity at the same time dehumidifier should be able move over certain amount of air in certain period of time. In simple word we need to decide liter/day extraction capacity of and Air flow volume of dehumidifier. Extraction capacity generally mentioned in terms of liter/day or pints/day. It is nothing but maximum amount of water that dehumidifier can extract from air in one day. Air flow volume is important to consider since moisture from air will get extracted only if air passes through dehumidifier. More the Air flow, more air will pass through dehumidifier and moisture level from air will come down quickly. Air flow volume mentioned in terms of Cubic Feet per Minutes (CFM).

Selecting Liter/day Dehumidifier Size.

As long as dehumidifier for home is concerned, Association of Home Appliance Manufacturers (AHAM) has made job very easy.  AHAM offered easiest dehumidifier buying guide. AHAM has recommended capacity of dehumidifier depending on size of room and humidity level in room. Capacity of dehumidifier is directly proportional to humidity level in room and size of room. is Depending on level of humidity and its symptoms AHAM divided area in following four types:

1) Extremely Wet Area: Areas with extremely high humidity level with Wet Floors and High-Load Conditions.

2) Very Wet Area: Areas with high humidity which tends to condensation water drops formation on walls and seepage on walls.

3) Very Damp Area: Common symptoms of these areas are bad odour from carpet, clothing, sofa and damp spot of walls.

4) Moderately Damp Area: In such areas you feel uncomfortable and with smell.

 

Depending on Humidity levels (as mentioned above) and size of room, AHAM offered following guideline to select size of dehumidifier.

dehumidifier sizing guideline by AHAM.

 Selecting Air flow volume for dehumidifiers.

CFM Air flow volume needed in room is decided with help of square foot area of room and humidity level in room. Air flow volume is directly proportional to square feet area of room and humidity level in room. Square feet area of room determines how much air should pass through dehumidifier while humidity level in room determines how many times this air should pass through unit in hour. This term is denoted as ACH or air changing per hour.

Air flow volume in CFM can obtain by multiplying square foot area of room and recommended ACH for that room. Recommended ACH from different areas as follow:

1) For Extremely wet area: These are areas where humidity level in range of 90% to 100% RH. Recommended ACH is 6.

2) For Very wet area: These are areas where humidity level in range of 80% to 90% RH. Recommended ACH is 5.

3) For Very Damp area: These are areas where humidity level in range of 70% to 80% RH. Recommended ACH is 4.

4) For Damp area: These are areas where humidity level in range of 60% to 70% RH. Recommended ACH is 3.

By multiplying Area of room in square feet to Recommended ACH, one can get Air flow Volume for Dehumidifier.

 

For any further query please contact us. We hope this article will help to select proper dehumidifier size.

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Types of Dehumidifier.

Dehumidifier is a device which reduces or remove water contains in air. Depending on applications & working principle of dehumidifier, it is divided in different types of dehumidifiers. Based on its applications it divided broadly as Portable dehumidifier, Industrial or commercial Dehumidifier, Indoor swimming pool dehumidifier. Based on working principle dehumidifiers divided mainly into refrigerant and desiccant type dehumidifiers. Every type of units has its pros and cons, which we are going to explore in this article.

dehumidifier carrefourTypes of Dehumidifiers based on its Applications.

As mentioned above based on applications, types of dehumidifiers are as follow:

Portable Dehumidifier: This is basically dehumidifiers for home and offices. Capacity of this dehumidifier is from 1o to 30 liter/day. It is mainly use in home or offices to reduce humidity to avoid mould, bad smell, for asthma patient and to dry laundry. Aesthetic look and controlling features are more important for these dehumidifier than performance. Filter offered in these unit are of high quality and control panel provided with functions like timer, fan speed etc.

Industrial or Commercial Dehumidifier: As name suggested these dehumidifiers are use in industrial process applications. Rating of these dehumidifier if from 30 to 1200 liter/day. These dehumidifier can be of portable type (with wheels) for fixed type (wall mount, ceiling mount or floor mount). Industrial dehum has bulky, strong mental body and it provided with strong wheels if it is portable. Control panel provided with basic functions. Filter provided I these unit is of basic type. only humidistat provided on control panel to set required humidity.

Indoor Swimming Pool Dehumidifiers: This dehum use in swimming pool, spa and Jacuzzi indoor areas since all these areas has water bodies (heated water) which has high humidity due to fast water evaporation. Generally Ceiling mount, roof mount or wall mount dehumidifier are preferred. Wall mount units has limitation on capacity hence it use for small home swimming pool. Roof mount dehumidifier can be use for large Olympic size pool. while ceiling mount dehumidifier can be use for all type of pools and gives faster result than other two.

Types of Dehumidifier based on its working principle.

Based on working principle Dehumidifiers are broadly of following two types:

Refrigerant type Dehumidifier: It is also called as condense drying dehumidifier or mechanical dehumidifier or condensation type dehumidifier. It uses refrigeration cycle to remove humidity from air. It consists of evaporator and condenser coil. Fan draw humid air to evaporator where air cooled below dew point and condensation of moisture happens. condensate water collected in tank. then dry air pass through condenser coil where it heated and return to room to pick up humidity. This type of equipment is more economical in terms of initial cost and operation cost. Refrigerant type units are more economical when dehumidification has be done at high temperature and high humidity level. It consumes less power than desiccant type unit.

desiccant and refrigerant type dehumidifier workingDesiccant type Dehumidifiers: This types of units are economical than condensation type when dehumidification has be done at low temperature and low humidity level. It consumes more power than refrigerant type unit. Initial and working cost of this type dehumidifier is higher than refrigerant type unit. This type unit consists of rotating desiccant wheel. Humid air drawn to rotating desiccant wheel with help of process fan where humidity in air absorbed by desiccant wheel and heated dry air release in room. Due to absorb humidity desiccant wheel becomes wet and to dry wheel heated reactivation air passes through desiccant wheel and wet air release outside room with help of reactivation fan.

CtrlTech offers all kind of dehumidifier in Dubai, UAE, Oman and Qatar.

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Review of CD-85L Industrial Dehumidifier by CtrlTech, UAE.

CD-85L Industrial DEHUMIDIFIER - marine dehumidifier - commercial dehumidifier - desiccant dehumidifierCtrlTech, a reputed name in dehumidification industries has launched new Cd-85L Industrial Dehumidifier by their esteem client in UAE, Oman, Qatar and rest of countries of Middle East region. In this post we will review CD-85L Dehumidifier in detail.

Product Description of CD-85L Industrial Dehumidifier.

Cd-85L Dehumidifier has rugged construction, elegant view and very durable machine. Let understand construction of CD-85L Industrial dehumidifier:

  • Body : Body of CD-85L is made up of high quality non-corrosive, durable plastic which make unit very light, easy to move and elegant in view.
  • Control Panel: Unit consist of control panel with LCD display with touchpad. We will discuss Control Panel in detail in our next segment.
  • Air Filter at Air Inlet panel: Air cleaning provided at Square shape air inlet which is at front side of CD-85L Industrial Dehumidifier Unit. Filter can be easily remove by pulling it from left side of Air inlet.

CD-85L Unit

  • Wheels: Strong ¢290 MM pneumatic tyre wheel provided with CD-85L Dehumidifier.
  • Handle: Unit provided with stylish removable handle which helps to move dehumidifier unit very easily.
  • Air Outlet: Dehumidified air get through from back side of dehumidifier unit. Air outlet provided with round shape air outlet hood of 170mm diameter. We can connect plastic pipe to this hood to dry certain area faster.
  • Water pipe supporter: CD-85L Industrial dehumidifier provided with 3 meter drainage pipe. Stylish Water pipe supporter is provided at back side of unit which can use to coil drainage pipe around it when dehumidifier unit not in use.
  • Power Cord: Dehumidifier unit provided 2.2 meter power cord.

Control Panel of CD-85L Dehumidifier.

CD-85L Provided with LCD touchpad with following controls:

  • ON/OFF key: To turn On or Off Dehumidifier unit.
  • Purge Key: Purge key is use to pump out water from pump reservoir. During normal working condition pump purges water automatically from reservoir. We can use "PURGE" key before moving machine to avoid water spillage.
  • UP and DOWN key: We can use UP & DOWN key to set required humidity level between 26% & 90%. When Environmental humidity is less than 26% then LCD display will show "CO"

Control panel

  • Time Key:  Display working hours and totally working time After turning on operation, it can display setting humidity(left) and current humidity(right), and humidity could be changed by pressing “Up and Down”. for the current time, and the time unit is based on minutes, for example, if it displays “0000:50”, it means that it has worked for 50 minutes this time. If you want to view the totally working time, please press “T” once more, and it will shows for 10s and returns automatically to the original working hours. If you press “T” before it has lasted for 10s, it also can turn to the original working hours. The totally working time cannot be deleted, if the time is beyond the range of LED showing time, it will be deleted and recount from the start.
  • Defrost Indicator:  The unit begins to defrost when the defrost indicator lights; the unit stops defrosting when the defrost indicator is off. When defrosting finishes, the unit begins to dehumidify automatically again.
  • LCD Display: During normal operation LCD display should set humidity on left and current environmental humidity on right side of LCD panel. If we press "T" key one time then it will show last working hours. If we press "T" key again then LCD display total working hours.

ilter and pipe function of CD-85L            positioning of CD-85L

Operation of CD-85L Industrial Dehumidifier.

Position Dehumidifier preferably at centre of room to be dehumidified. To Maximize water removal capacity of dehumidifier, close all doors, windows or area that opens to external area. Keep clearances on all side of dehumidifier as shown in diagram below. Do not obstruct air flow of dehumidifier.

To start unit press ON/OFF key. Unit will start working and water pump will turn on automatically for 40 seconds to drain then rest water, and turnoff automatically. LCD display current humidity and set humidity.

Summary:

In Short investing in CD-85L dehumidifier is value for money. CD-85L Industrial dehumidifier is strong, rugged, stylish with elegant view and rich with all features. Dehumidifier price is very reasonable as compared to quality and featured offered in it. CtrlTech offer one year warranty on CD-85L Industrial Portable Dehumidifier.

Specfications of CD-85L

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