INSTALLATION INSTRUCTIONS (continued)

Elevation

The preferred location for the dispersion tube is higher than the humidifier so that the steam hose has a constant downward slope of at least 2” per foot from the dispersion tube to the humidifier.. If hard pipe is used, the slope can be 1/4” per foot.. With the constant downward slope, any condensation that forms in the steam hose will drain back into the steam canister.. See Figure 3.. If the dispersion tube must be mounted below the humidifier or if the steam hose needs to run up and over an obstruction, a drip tee with drain trap must be installed as shown in Figure 4..

Figure 3 – Dispersion Tube Mounted Above Humidifier

Steam hose or pipe.

 

Insulate pipe with

Dispersion tube

1” fiberglass to

 

reduce steam loss.

Pitch*

 

90° long sweep

 

or two 45° elbows

Duct

 

Figure 4 – Dispersion Tube Mounted Below Humidifier

Drip tee installation for piping over obstruction, or if dispersion tube is lower than humidifier.

90° long sweep

 

or two 45° elbows

Pitch

 

*Pitch steam hose down from dispersion tube to humidifier:

2"/ft (15%) minimum when using steam hose.

1/4"/ft when using hard pipe.

90-1521

Insulate hard pipe to

reduce steam loss

To

Dispersion

Tube

6" min

8" min

1" air gap

Open drain required,

see note 1.

Obstruction

Drip tee

Drain trap

NOTES:

1.Refer to governing codes for drain pipe size and materials.

2.Support steam hose so there are no sags or low spots.

90-1520

Distance from Humidifier to Dispersion Tube

The capacity of the humidifier is reduced by the length of the steam hose or pipe due to condensation.. The maximum recommended length of steam hose is 6 feet.. Use hard pipe insulated with 1” fiberglass for lengths greater than 6 feet.. Table 3 provides humidifier capacity with various lengths of steam hose and pipe.. When splicing hard pipe to steam hose, use 1” O..D.. pipe..

Table 3 – Steam Humidifier Capacity in Gallons/Day

Steam Hose

120 Volts

208 Volts

240 Volts

or Insulated

 

 

 

 

 

 

Steam Hose

Insulated Pipe

Steam Hose

Insulated Pipe

Steam Hose

Insulated Pipe

Pipe Length

 

 

 

 

 

 

 

< 2 ft..

11..5

11..5

20..5

20..5

23..3

23..3

 

 

 

 

 

 

 

2 ft..

11

11

20

20

23

23

 

 

 

 

 

 

 

4 ft..

10

11

19

20

22

23

 

 

 

 

 

 

 

6 ft..

9

11

18

20

21

22

 

 

 

 

 

 

 

8 ft..

 

10

 

19

 

22

 

 

 

 

 

 

 

10 ft..

 

10

 

19

 

22

 

 

 

 

 

 

 

12 ft..

 

10

 

19

 

22

 

 

 

 

 

 

 

14 ft..

 

9

 

18

 

21

 

 

 

 

 

 

 

16 ft..

 

9

 

18

 

21

 

 

 

 

 

 

 

18 ft..

 

9

 

18

 

21

 

 

 

 

 

 

 

20 ft..

 

9

 

18

 

20

 

 

 

 

 

 

 

6

Page 6
Image 6
Aprilaire model 800 Installation Instructions, Elevation, Distance from Humidifier to Dispersion Tube, Insulated Pipe

model 800 specifications

The Aprilaire Model 800 is a powerful and highly efficient whole-house steam humidifier designed to provide optimal humidity levels throughout your home. This innovative product is particularly beneficial for homeowners seeking to maintain comfortable living conditions while enhancing air quality.

One of the standout features of the Model 800 is its capacity to generate up to 34 gallons of moisture per day. This remarkable output makes it suitable for larger homes or those with multiple rooms that require humidity control. It can effectively humidify living spaces ranging from 3,000 to 6,200 square feet, ensuring that every corner of the house is adequately served.

The Model 800 employs advanced steam technology, which allows it to generate steam that is then distributed throughout the home’s heating system. This method ensures consistent and efficient moisture distribution, unlike traditional humidifiers that may struggle to cover larger areas. The steam created is clean and free of significant mineral content, reducing the risk of “white dust” that can accumulate when using some other types of humidifiers.

Another key characteristic of the Model 800 is its user-friendly interface. The unit features a built-in humidistat that continually monitors and adjusts humidity levels according to the specific requirements of your environment. Water usage is optimized and can be tailored to your home’s needs for enhanced efficiency.

Installation flexibility is a notable advantage of the Model 800 as well. It can be connected to various types of heating systems, including forced air and hydronic setups. This versatility makes it a great choice for different residential applications.

Furthermore, Aprilaire has incorporated low maintenance design considerations into the Model 800. The steam unit is designed with a replaceable canister that helps simplify routine care. Homeowners can enjoy the benefits of this humidifier without the burden of frequent upkeep.

Overall, the Aprilaire Model 800 stands out in the market for its performance, innovative technology, and user-friendly features. It is a reliable solution for anyone looking to enhance indoor air quality and comfort throughout their home. Whether in winter when dry air is prevalent or in any other season, the Model 800 ensures a comfortable and healthy living environment.