There are several types of applications that call for the installation of a wall mounted dehumidifier. The following describes various scenarios whereby an IW-25 dehumidifier can be permanently installed on different types of walls including masonry or CMU block.
While the IW-25 dehumidifier was originally engineered for multifamily housing, its flexibility of design and unique innovation make it ideal for use in commercial, educational and industrial applications as well. One of the more desirable features of the unit is the tamper-proof front cover which protects a built-in humidistat. The IW-25 comes with a special tool that allows facilities personnel to simply remove two security screws for easy access to perform maintenance or unit adjustments while preventing the public from accessing the unit controls. Limiting access to unit controls not only ensures continued operation of the dehumidifier but also protects the property owner or manager from potential liability issues.
Other essential features of the IW-25 include the following:
- at 47 decibels or less, the IW-25 is one of the most quiet dehumidifiers on the market
- can be hard-wired or plugged in using the supplied standard 120V plug
- directly drains into existing plumbing and can be hard-piped if required
- humidistat relative humidity (RH) set point is adjustable from 30% to 90%
- efficient operation with average rated power consumption of 370 watts
- automatic re-start after power failures
The IW-25 has a capacity of 25 pints per day. According to the American Home Appliance Manufacturer’s (AHAM) dehumidifier sizing chart this unit will satisfy supplemental dehumidification requirements for a space up to approximately 1500 square feet experiencing “very damp” conditions.
A few recent examples of wall mounted installations of the IW-25 include unconditioned stairwells and classrooms where the use of portable dehumidifiers proved impractical or ineffective. The stairwells in one particular case were constructed using CMU block. Prior to installing the IW-25s in the stairwell, the relative humidity typically mirrored ambient conditions. On a few of the more hot and humid days, RH inside the stairwells approached 90%. In addition to the obvious discomfort of those using the stairwells there was also concern that excessively humid air was infiltrating the building through interior door openings.
The building owner was looking for a cost-effective, permanent solution to prevent excessive humidity inside the unconditioned space and contacted Innovative Dehumidifier Systems. Using the surface mounting box which is available as an accessory for the IW-25, four dehumidifiers were installed inside two separate stairwells bringing the humidity down to a desired level below 60%. For more details regarding this project you can read the full case study here Senior Housing Stairwell Project.
Another example using the IW-25 as a wall mounted dehumidifier in educational facilities applications involved replacing noisy and inefficient portable dehumidifiers. In this particular case, educators voiced various complaints including noise levels, drain lines into classroom sinks and the inevitable accident involving spills. Additionally, portable units were occasionally unplugged rendering them ineffective. Once mounted to the wall, the IW-25 performs quietly, safely and efficiently to remove excess moisture from the classroom without interruptions or annoyances.
When evaluating where to install a wall mounted IW-25 the following considerations should be taken into account:
- Ensure that provisions are made for bringing power to the unit. In most commercial applications a hardwired dehumidifier is preferable. Click the link below for a short video explaining how this is done using the IW-25
- Ensure that provisions are made for draining condensate from the unit. Unlike portable dehumidifiers, the IW-25 does not have a holding take which would require emptying. Instead the unit incorporates a gravity drain design. In cases where this is not practical, installers may elect to use a condensate pump to displace condensate from the unit.
In the case of a stairwell, hallway or common area installation take care to ensure the unit in installed at such a height to prevent people from walking into it. For most classroom installations or in facilities where sound is a concern the unit should be mounted at the back of the room whenever possible.
Once the location has been established the first step is to fasten the galvanized metal surface mounting box securely to the wall. If the application calls for a matching color or custom finish you might want to primer the box before mounting to the wall. Use fasteners appropriate for the composition of the wall. For example, use masonry anchors or tapcons when mounting the box to masonry walls. The weight of the IW-25 is approximately 40 pounds.
After the surface mounting box has been fastened, the IW-25 must be placed inside the box using the following protocol:
- While holding the IW-25 facing the front of the unit, lean the top of the unit toward you
- Insert the bottom of the IW-25 into the surface mounting box and pull the bottom of the IW-25 toward the front of the box while simultaneously pushing the top of the unit into the box
- Gently lift the IW-25 off the bottom of the surface mounting box and align the cabinet flanges with the pre-drilled holes in the box
- Using the screws provided secure the IW-25 to surface mounting box and install cover.