Humidifiers
Automatic Digital Control Humidifiers
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| Model 700 | Model 600 | Model 500 | Model 400 | Model 800 |
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| Powered Unit | Large Bypass | Small Bypass | Large Bypass Drainless |
Residential Steam |
Evaporative flow-through technology you can trust.
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Reliability
- Delivers optimum humidity
- Flow-through technology provides efficient evaporation; extends water panel life
- Minimal components for easy care; trouble-free performance
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Engineered Simplicity®
- Versatile applications
- Simple installs in six easy steps
- Automatic control continually delivers optimum humidity 24/7
- Simple, annual maintenance
Deliver more with the industry leader - Aprilaire
- Digital control provides more accuracy and information - exclusively from Aprilaire
- Delivers proper amounts of humidity and automatically adjusts for changes in temperature or conditions.
Designed for your customer
- The upgraded Automatic Digital Control provides comprehensive information to the homeowner.
- Relative humidity percentage
- When unit needs service
- When unit needs maintenance
- When unit is on and operating properly
- Set-it-and-forget-it control ensures maximum comfort throughout the home - every hour, every day, all season long.
- The attractive housing color - a light blend of blue and gray creates a subtle presence in the installed environment.
- Delivers perfectly humidified air to every room of the house, minimizing cold triggers, dry, itchy skin and static shocks.
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Digital Control provides accurate information and automatically delivers proper humidity levels continually; regardless of the temperature or conditions.
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For some homes, a manual control may be recommended. The Aprilaire digital control can be used in manual mode. Still providing all the great benefits of the Automatic control that your customer wants:
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Built for you
- Reduced nuisance calls - control tells homeowners when service is required.
- Research indicates that 84% of customers would choose digital control and are willing to pay up to $70 more for the upgraded features provided by Aprilaire. With 98% of households in need of a humidifier, that means bigger profit margins in an untapped market.
- Both the unit and the control were specially designed for easy installation - the easiest in the industry. Limited tools and parts make the job simple, saving you valuable time and money. The humidifier control requires only a simple 3/4-inch drill bit and no tin snips.
- Service codes on the digital display of the control panel allow your customers to communicate with you more clearly, saving time on service calls.
- When customers know exactly when a water panel replacement is needed, they'll call you for product installation, giving you another opportunity to assess their indoor air quality needs.
Residential Steam Humidification
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Quality and Reliability
- Proven design using electrode technology perfected by Dr-Steem® a subsidiary of Research Products.
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Easy to Install
- Remote or duct mount with no additional accessories.
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Easy to Maintain
- No cleaning or scrubbing, simply remove canister and replace.
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Dispersion and Absorption
- Steam dispersion technology, ensures proper dispersion into the air, preventing condensation in duct.
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No Accessories Required
- Water filtration not needed even in most difficult conditions.
- Control, dispersion tube, steam hose and drain tube included in the box.
Model 850 Fan Pack
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| Voltage | kW | Maximum Steam Capacity | Current Draw (amps) | Humidifier unit operating weight |
| gal/day | Amps | lbs | ||
| 120V | 1.4 | 11.5 | 11.5 | 23 |
| 208V | 2.4 | 20.5 | 11.5 | 23 |
| 240V | 2.8 | 23.3 | 11.5 | 23 |
- Water Hardness - 3 to 36 grain per gallon, water filtration not necessary
- Supply water pressure must be between 25 psi and 120 psi
- Drain water flushes with fresh inlet water
- Electrical draw 11.5 amps ±10%, use 12.7 amps when sizing circuit 208 or 240V, run two conductors plus neutral plus ground
- Canister replacement once per humidifier season under normal conditions. Unit will automatically notify when canister must be replaced.
Steam Humidifiers for businesses
The Need for Precise Humidity Control is Widespread.
Many businesses have valuable inventories and specific processes that require protection. Most businesses rely significantly upon electronics to conduct day-to-day operations and all strive to increase employee productivity. Insufficient humidity levels in the workplace, however, can present significant roadblocks.
The light commercial solution is steam humidification from Aprilaire.
Your customers need a humidification system that is designed with their applications in mind. A steam system will provide them the capacity and precise humidity control they need. You need a humidification system that is built with you-the contractor-in mind. A steam system will provide you easy installation and maintenance, and will reduce service callbacks by maintaining accurate control of your customers' humidity needs. You and your customers need Aprilaire.
Aprilaire Steam Humidifiers are built to last.
Through extensive research and over 50 years expertise in humidification control, Aprilaire has incorporated superior design features into each of the three models of Steam Humidifiers:
- Model 1150: 12 lb/hr unit featuring on/off control
- Model 1160: 24 lb/hr unit featuring a modulating output designed to regulate the output of the humidifier based on the humidity need in the building
- Model 1180: 48 lb/hr unit featuring a modulating output designed to regulate the output of the humidifier based on the humidity need in the building
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A complete humidification system in a single box-ready to ship now.
Both full self-contained units come with everything needed for installation:
- Steam Humidifier
- Automatic Control
- Air Flow Proving Switch
- Steam Distribution Tube
- 10 ft. Flexible Steam Hose
Optional Components:
- Hanging Bracket Kit
- High Humidity Limit Switch

Aprilaire helps you make opportunities happen.
Add a profitable new line to your company with Aprilaire's new Steam Humidifiers. Ask your Aprilaire distributor, or call 800-334-6011 for more information.
Commercial Humidification Calculation Software
Use this (Windows) software to determine the Aprilaire Humidifier that's perfect for your application - (HumidCalcSoft.exe). This is an EXE file. Right click and choose "Save Target As." When the download is complete, find the file on your computer and double click on it to install. If you choose to install this software after download, please note that NO information is collected or shared during installation or while the program is resident on your computer. It is simply a stand-alone program that we hope you'll find informative and useful.
Consumer Literature
Consumer literature is available for you to download. To order high quality literature in quantity, contact customer service or become a Partner In Comfort member.
Consumer Literature
- Humidification Facts For Total Indoor Air Comfort
- Apriliare Humidifiers Models 350 and 360 Sales Sheet
- Aprilaire Automatic Humidifiers
Current Residential Manuals
- Model 4851 Blower Activation Relay Installation Instructions
- Humidifiers Service Manual
- Humidifier Control Model 60 Safety and Installation Instructions
- Humidifier Model 400 Series Safety and Installation Instructions Template with Model 60
- Humidifier Model 500 Series Safety and Installation Instructions Template with Model 60
- Humidifier Model 600 Series Safety and Installation Instructions Template with Model 60
- Humidifier Model 700 Series Safety and Installation Instructions Template with Model 60
- Humidifier Control Models 60, 62 and 4655 Operating Instructions
- Owner's Manual Model 350, 360, 400, 400M, 500, 500M, 600, 600M, 700 and 700M
- Steam Humidifier Fan Pack Model 850 Installation Instructions
- Model 800 Installation Instructions
- Model 800 FAQs
- Model 800 Owner's Manual
- Model 62 Humidifier Control Safety and Installation Instructions
- Humidifier Control Model 65 Safety and Installation Instructions
- Owner's Manual Model 65 Humidifier Control
- Automatic Digital and Manual Humidifier Control Operating Instructions Models 60, 62, 4655
- Manual Humidifier Control Safety and Installation Instructions
- Humidifiers Model 350 Installation Manual
- Humidifiers Model 360 Installation Manual
- Aprilaire Model 50/51 Current Sensing Relay Installation Instructions
Contractor Sales and Reference Materials
- "Want to Sell More Humidifiers" - Tec Daddy's Corner by Charlie Greer (2005)
- Whole-Home Humidifiers
- Humidifier Application Reference Guide
- Residential Steam Humidifier
Specification Sheets
- Humidifier Specifications - This document offers basic specifications for Humidifier Models 700, 600, 400, 500 and 350/360
- Model 800/850 Residential Steam Humidifier and Fan Pack Specifications
Parts Lists
- Residential Humidifiers - Includes Models 350, 360, 400, 445, 445A, 448, 550, 550A, 558, 560, 560A, 568, 600, 700, 760, 760A, 768 & 800
- Steam Humidifiers - 1150, 1160, 1180
Service Bulletins
Non-Current Residential Manuals
- Automatic Humidifier Model 400 Safety and Installation Instructions Template
- Automatic Humidifier Model 700 Safety and Installation Instructions Template
- Automatic Humidifier Model 760 Safety and Installation Instructions Template
- Automatic Humidifier Model 400A and 400M Safety and Installation Instructions Template
- Automatic Humidifier Model 500A and 500M Safety and Installation Instructions Template
- Automatic Humidifier Model 600A and 600M Saftey and Installation Instructions Template
- Automatic Humidifier Model 700A and 700M Safety and Installation Instructions Template
- Automatic Humidifier Model 600 Safety and Installation Instructions Template
- Manual Humidifier Model 500 Safety and Installation Instructions Template
- Humidifier Control Model 56 Safety and Installation Instructions Template
- Automatic Humidifier Control Safety and Installation Instructions Template
- Owner's Manual for Models 350, 360, 400, 500, 600 & 700
- Owner's Manual for Model 768, 760, 568, 560, 558, 550, 448, 445, 440, 224, 220, 112, and 110
- Humidifier Control Model 58 Safety and Installation Instructions
Light Commercial Humidifier Literature
- Automatic Steam Humidifier Control Safety, Installation, and Operation Manual
- Steam Humidifier Installation, Operation, and Maintenance Manual for Models 1150, 1160, and 1180
- Model 1150, 1160 and 1180 Steam Humidifier Spec Sheet
- Model 1150/1160 Steam Wiring & Utility - Shows simple wiring for typical installations
- Model 1150/1160 Steam Wiring & Utility with Blower Control - Shows simple wiring for when the humidifier should activate the blower upon humidification calls
- Model 1150/1160 Steam Wiring & 8570 - Shows wiring a transformer to the 8570 when connecting the Steam Humidifier Control
- Light Commercial Steam Humidifier FAQs - Dealer-focused FAQs for Steam Humidifiers
- Light Commercial Steam Humidification Sales Brochure
Non-Current Light Commercial Literature
- Model 1120 Self-Contained Humidifier Submittal Sheet
- Model 1120 Self-Contained Humidifier Spec Sheet
- Model 1130 Bypass Humidifier Submittal Sheet
- Model 1120, 1130, 1140 Parts List
- Evaporative Humidification - Light Commercial Applications
- Commercial Humidification Calculation Worksheet
- Model 1140 Humidifier for Standalone Furnace Submittal Sheet
- Model 1140 Humidifier for Standalone Furnace Spec Sheet



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