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Residential Kuhl SL24N30

Friedrich SL24N30

Quick Specs

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner
  • Width: 28"
  • Height: 20 3/16"
  • Depth: 35 1/2"
  • Energy Star Rated: No
  • Cooling Power: 24000 BTUs
Wireless Control, Astounding results.

Kuhl is a game-changer. It's tough. It's durable. It's powerful. Now it's wireless with FriedrichLink.

Access units remotely to turn them on or off, create schedules and more, all from your computer or smartphone. Click here for more information on FriedrichLink wifi adapter.

More information about the
FriedrichLink Wi-Fi Adapter >>
Introducing Kuhl

The only commercial grade room air conditioner tough enough for the most demanding applications. Everything about these category-leading units is designed for maximum quality, ease and control. From the 20-gauge steel cabinet and fully enclosed fan motors to the 7-day programmability and LCD control lockout, Kuhl's advanced design was created with industrial applications in mind. The line has cooling-only models and models with heat (heat pump or electric heat) in a full range of capacities. And, Kuhl is available in ENERGY STAR ® -qualified models. Our Sizing Guide and Specifications by Model will help you select the appropriate cooling and/or heating capacity.

Call a distributor and put Kuhl to work in your commercial space. Our North American factory is only hours from our distribution center - not overseas - for fast delivery.

  • Kuhl Control.
    Intuitive controls allow one touch operation or programmable control

    Simple unit controls or whole building control at your fingertips

    Simplified intuitive unit controls easily switch between operating modes, fan speed and temperature with a push of a button.

    Built-in 7-day energy management programs are based on a typical 5-day work week and a typical 5-day business week.

    Custom 7-day programs can be created to maximize comfort and/or energy savings around individual preferences. Create and save up to six custom schedules per unit. (requires optional Friedrichlink KWIFI accessory)

    Wireless Unit operation makes controlling a Kuhl possible from a smartphone, computer or tablet. Friedrichlink, a proprietary web-based portal allows access to an unlimited number of Friedrich units. Make changes on the go, wherever you are.

    And, FriedrichLink allows users to create "Groups" of air conditioners, controlling them as one. Create your own zones or central systems using room air conditioners.

    And, Kuhl is the first room air conditioner that is Smart Grid capable.

  • Kuhl Components.
    Superior components and construction. Attention to every detail.

    Every aspect of Kuhl is ultra-premium, outside and in, down to the tiniest component. Constructed with only the finest-quality materials, Kuhl is extremely durable and designed to withstand tough use in virtually any commercial setting.

    Outside: Kuhl's exterior is designed to prolong unit life.

    • Heavy 20-gauge steel cabinet
    • Solid sleeve top protects the fan from debris
    • Distinctive rear aluminum grille protects the unit from damage and vandalism.
    • Aluminum endplates prevent rusted condensate from pooling in the drain pan, and eliminate rust stains on buildings.

    Inside: You'll find some of the most sophisticated, wear-resistant components inside every Kuhl.

    • Robust, totally enclosed fan motors run at lower temperatures to prevent overheating.
    • Sealed controls enhance durability.

    Plus, Kuhl's firm-grip interior handles make it easy to grasp the chassis during installation and removal.

  • Kuhl Durability.
    Superior components and construction. Attention to every detail

    Every aspect of Kuhl is ultra-premium, outside and in, down to the tiniest component. Constructed with only the finest-quality materials, Kuhl is extremely durable and designed to withstand tough use in virtually any commercial setting.

    Outside Kuhl's exterior is designed to prolong unit life.

    • Robust 20 gauge steel cabinet
    • Solid-sleeve top keeps out falling debris*
    • Solid-steel blower housing offers enhanced protection
    • Totally enclosed commercial grade fan motor runs at a lower temperature to prevent overheating and is double-mounted for added stability and reduced wear (INSIDE FEATURE)
    • Solid steel base pans* and inner walls are durable
    • Unit's structural integrity allows it to be removed, cleaned and maintained outside of it's sleeve
    • Distinctive aluminum rear grille protects the outdoor coil from damaging debris and vandalism.
    • Aluminum endplates prevent rusted condensate from pooling in the drain pan, and eliminate rust stains on buildings.
    • Scratch-resistant cabinet
    • High-tech aluminum fins with rifled copper tubing are more efficient and less prone to corrosion
    • Heavy-duty installation hardware lasts longer and provides a superior barrier from outside elements
    *Excludes SQ & EQ models

    Inside: You'll find some the most sophisticated, wear-resistant components inside every Kuhl.

    • Robust, totally enclosed fan motors run at lower temperatures to prevent overheating.
    • Sealed controls enhance durability

    Plus, Kuhl's firm-grip interior handles make it easy to grasp the chassis during installation and removal.

  • Kuhl Efficiency

    From programmability to the refrigeration system, Kuhl is designed to reduce energy consumption.

    • Auto Fan mode saves money by conserving energy
    • ENERGY STAR®-qualified models, including all four heat pumps
    • Two built-in 7-day energy management programs. Optional custom programmability and BMS interface using KWIFI accessory package.
    • R-410A refrigerant used in all models
    • High-tech rifled copper tubing and slit fins have greater surface area for maximum heat-exchange efficiency.
  • Kuhl Quiet

    Gaps, insufficient insulation, and improperly mounted moving parts can contribute to operational noise. We designed Kuhl to minimize noise-causing vibration, outdoor noise intrusion and operating noise, while maintaining optimal air flow. Every unit has these important noise-reduction features:

    • Motor mount: The dual resilient rings prevent the metal-to-metal contact that causes noise and vibration
    • High-efficiency compressors: Mounted on extra-thick rubber grommets that absorb vibration
    • Solid-steel blower wheel housing: Provides maximum sound reduction
    • Steel inner wall, insulated plenum, heavy-duty hardboard side panels* and extra dense insulation: Blocks outdoor noise
    • Air discharge: Wider openings and better airflow design minimize airflow noise

  • Kuhl Purity.

    Kuhl's advanced dual-stage filtration system removes allergens, odors, ozone and other impurities from the air. By combining the optional carbon filter with the standard antimicrobial filter, Kuhl achieves lab-tested superior air filtration with ratings as high as MERV 6. Use the fresh-air vent and the exhaust vent for additional air-quality control.

    When both vents are closed, Kuhl cleans and conditions the air in your space. Open the fresh-air vent* and Kuhl purifies and conditions a moderate amount of outdoor air along with the air in your room. Use the exhaust vent* to release stale air and odors outside.

    *Excludes SQ & EQ models

  • Kuhl Comfort.

    The most comfortable temperature is the one you never notice. Kuhl uses five four five built-in environmental sensors to more accurately monitor indoor and outdoor temperatures so that it can maintain your ideal settings.

    Kuhl+ models have the ability to cool or heat as needed so units can operate as year-round central systems. And, like the most advanced central systems, Kuhl+ has auto-changeover*, which allows the unit to automatically switch between air conditioning and heating functions to maintain the desired comfort level. You won't have to lift a finger.

    Plus, Kuhl's air flow systems are tested for powerful and precise air distribution which means faster cooling when you need it most.

    *Except EQ08

    Kuhl Testing.
    Rigorous testing, ongoing quality control

    Before Kuhl hit the market, we carried out a punishing battery of tests in a UL-certified lab. We continue to test, refine and improve because our commitment to quality - and to our customers - demands it.

    • Airflow: Computational Fluid Dynamics (CFD) and validated empirical testing, including infrared thermography and smoke-trace analysis, to ensure maximum, uniform, directionally correct airflow
    • Capacity and Energy Efficiency: Confirmed in accordance with AHAM RAC-1 and DOE test requirements
    • Carbon filter: Gas Phase Capacity Test, VOC removal per IBR TM P300
    • Compressor: Stress tests for reliability
    • Electronic control hardware and software: Hardware systems endured extreme short-circuit, over-and-under voltage, high temperature, radiated emissions and electromagnetic pulse-spike susceptibility. Software tested using regression methodology to ensure logic and control states are achieved as designed.
    • Filter Capture: Efficiency rated per ASHRAE Standard 52.2
    • Louvers: Cycle-tested for reliability
    • Packaging: Shaken, dropped, crashed and transit-tested to prevent damage during shipping and handling; results exceeded ISTA standards
    • Refrigeration and mechanical system: Accelerated life tests in extreme environmental conditions and at abnormal cycle rates simulated long-term use and measured durability
    • Sound performance: In accordance with ARI 350 sound-performance rating of non-ducted indoor AC equipment
    • Unit field testing: Provided customer feedback on real-world applications for constant product/production improvements
    • Unit safety: Tested to UL requirement 484-Standard for Safety of Room Air Conditioners, including electric heater overload, rain penetration, high pressure and other factors
    • User Handles: Finite Element Analysis and load-testing to ensure that unit weight is fully supported by built-in handles
Get Kuhl.

Ready to get comfortable" Locate your nearest Friedrich dealer to experience Kuhl for yourself and find the model that best suits your needs. Can't wait to start looking" Review specifications for our full range of Kuhl models to discover the best unit for your room size.

Intelligent Design.

You've never met a window air conditioner as smart as Kuhl. Everything about Kuhl has been engineered to lead the category. Even Kuhl's features are head turners. See for yourself.

Available as cooling-only, heat pump, or cooling + electric heat
  • 5400-36000 Btu

Comfort and Convenience
  • Control your unit from your smartphone, computer or tablet (requires optional KWIFI accessory)
  • Create customized 7-day schedules (requires optional KWIFI accessory
  • 24-hour timer
  • Group units for zone or centralized control using FriedrichLink (requires optional KWIFI accessory)
  • 4 cooling and fan speeds*
  • Automatic fan speed adjustment
  • Auto-changeover on heat pumps and models with electric heat**
  • Comfortwatch technology samples the air to more accurately maintain the set temperature
  • 8-way airflow control
  • Display set point or room temperature
  • LCD panel auto dims when not in use
  • Nightlight mode

* SL25, SL28 & SL36, heat pumps and models with electric heat have a 3-speed fan.

**excludes SQ and/or EQ models

  • Scratch resistant, painted 20-gauge steel cabinet resists corrosion and rust
  • Solid sleeve top keeps out falling debris*
  • Solid steel blower wheel housing
  • Commercial grade fan motor run at lower temps for longer life
  • Fan motor is totally enclosed for maximum protection
  • Exclusive aluminum rear grille protects against vandalism and damage
  • Firm grip handles for easier installation and maintenance
  • Aluminum endplates prevent rust
  • Solid steel base pans and inner walls*
  • Robust construction does not rely on outer sleeve for support

*excludes SQ & EQ models

Sound Reduction Technology
  • Extra thick rubber grommets absorb vibration and reduce noise inside, while steel inner walls and extra dense insulation block outdoor noise
  • Unique airflow path minimizes operating sound
  • Larger discharge vents allow conditioned air to move more quietly

Installation Features
  • Can be installed in window or thru-the-wall (depending on wall thickness)
  • Slideout chassis design, including firm grip handles, makes installation and maintenance much easier
  • Rugged hardboard side panels allow for a more permanent installation*
  • Front cover designed to allow power cord to exit left or right out of the unit
  • Heavy-duty installation hardware
  • Front cover attaches easily and securely; nut driver included
  • Powercord can run left or right for more installation options

*SQ and EQ have heavy duty side curtains

Superior Filtration
  • Advanced dual-stage carbon superior filtration system removes allergens, odors, ozone and other impurities from the air
  • In lab testing, combining the the optional carbon filter with the standard antimicrobial filter achieved a superior air filtration rating of MERV 6
  • Fresh air and exhaust vents* offer additional air quality control
  • Maintenance made easy by hinged filter door access and a check filter reminder

*Excludes SQ & EQ models

Safety and Security Features
  • EntryGard anti-intrusion protection prevents kick-in by securing the unit in the sleeve; a protective rear grille shields the unit
  • Insect barrier keeps out smaller intruders
  • LCDI power cord
  • Protective rear grille

Energy Management & Compliance
  • Smart Grid Capable
  • Two optional energy management schedules
  • Auto Fan mode saves money by conserving energy
  • R-410A refrigerant
  • RoHS compliant
  • ENERGY STAR® qualified models, including Heat Pumps
  • Recyclable packaging

Unique Digital Control System
  • Precision control over all Kuhl's functions

Accessories (Sold Seperately)
  • 6 colored front cover options
  • 3 pack of premium carbon filters
  • Window installation kit
Kuhl +
Air Conditioner + heat

For spaces needing heat in addition to cooling, we offer Kuhl+ Electric Heat and Kuhl+ Heat Pump models. Kuhl+ has all the features of Kuhl with these heating benefits:

  • Heating and cooling for rooms 100-2700 square feet, depending on unit capacity
  • Fully programmable heating mode
  • 3 speed settings each for fan, cooling and heating modes
  • Auto-changeover mode switches between cooling and heating automatically
  • Heat Pump models use reverse cycle operation to efficiently heat, using approximately 1/3 of the energy used by electric heater models in temperatures above 39° F
Model SL24N30
Cooling Capacity (Btu/hr) 24000/23800
Heating Capacity (Btu/hr) n/a
EER 9.4/9.4
Energy Star Qualified
Min. Extension Into Room 5 3/8"
Min. Extension Outside 18 15/16"
Unit Dimensions
Height 20 3/16"
Width 28"
Depth 35 1/2"
Window Dimensions
Min. height 21"
Min. width 29 7/8"
Max. width 42"
In-Wall Installation
Opening height 20 3/8"
Opening width 28 1/4"
Max. wall depth 15 1/8"
Additional Measurement Information
Depth to Louvers 16 1/2"
Sleeve Size L
Detailed Electrical Information
Voltage 230/208
Cooling Amps 11.2/12.0
Heating Amps 0
Air Circulation 640 cubic feet per minute
Est. Yearly Operating Costs $203
Moisture Removal 7.0 pints/hour
Operating Temperatures (Cooling, °F) 60-115
Operating Temperatures (Heating, °F) n/a
Performance Certifications AHAM, UL, cUL
Remote Thermostat Compatible n/a
Net Weight 191 lbs
Shipping Weight 212 lbs

Quick Specs

  • Appearance

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner

  • Dimensions

  • Width: 28"
  • Height: 20 3/16"
  • Depth: 35 1/2"

  • Features

  • Energy Star Rated: No

  • Cooling Capacity

  • Cooling Power: 24000 BTUs

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

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Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.